During the Mesolithic Age in East Asia, the discovery of stone tools reveals a complex range of human dynamics

The Mid-Lestic Age is considered a dynamic period in European and African history, but is generally considered a static period in East Asia. The discovery of a series of refined stone tools at Long Tang Sight in southwestern China, 50,000-60,000 years ago, challenges that recognition.



A product from the Quina system located at Longtan Site, China. Image credits: Luan et al. , doi: 10.1073/pnas.2418029122.

The Paleolithic period in the Central era occurred about 300,000-40,000 years ago and is considered an important time in human evolution.

This period is related to the origins and evolution of modern African people.

In Eurasia, it is associated with the development of several archaic human groups, such as the Neanderthals and Denisovan.

However, there is a widely believed belief that in most of the Paleostemic period, China’s development had slowed.

“Our discoveries challenge our current understanding of human history and technological development in East Asia,” said Professor Beau Lee of the University of Wollongong.

“This finding challenges a long-established general theory among archaeologists that China-China tools are relatively simple and unchanged.”

Professor Li and colleagues unearthed a rich collection of stone tools at the Longtan archaeological site in Yunnan, China.

This tool revealed a complete kina technology system that includes the cores used to generate large and thick flakes.

The Kina Industry is one of the most representative tool creation strategies developed in the Mid Paleolithic period around 300,000-40,000 years ago.

It is characterized by a steeply scaled retouch of thick flakes, which often produces robust scrapers with heavy edge modifications associated with neanderthals, representing strategies developed during marine isotope stage 4 as a response to open forest grassland environments and cool/dry climates.

The Kina Technical System was discovered in Western and Southern Europe during this period, but was not thought to have existed in East Asia.

The wear traces of Longtanquina scrape suggest that they are used in a variety of materials, including bones, horns, wood, meat, skin, and non-slow plants.

“Evidence has shown that the discoveries at Longtan significantly broadened the geographical distribution of human species, the tools used, and the adaptability to adapt to a variety of climates and environments,” Professor Li said.

“The discovery of Longtan also provides a perspective to understand how the human-leeze species evolved and evolved in East Asia prior to the massive arrival of early modern people 45,000 years ago.”

“Understanding rather old artifacts forces us to rethink models of human migration patterns and technology evolution in this part of the world.”

“This opens an exciting new avenue for research and, as we know, can rewrite East Asia’s prehistoric period.”

a paper The survey results were published this week Proceedings of the National Academy of Sciences.

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Qi-Jun Ruan et al. 2025. Kinarithic technology demonstrates the diverse late Pleistocene human dynamics of East Asia. pnas 122 (14): E2418029122; doi: 10.1073/pnas.2418029122

Source: www.sci.news

Are you consuming the wrong amount of protein for your age? Here’s why.

Protein Church has seen a recent surge in young worshippers, with Andrew Scott leading the services.

According to a survey by the CS Mott Children’s Hospital in Michigan, two in five Americans aged 13 to 17 reported consuming protein supplements like shakes and powders last year.

An investigation by online supermarket Ocado found that 62% of UK Z and millennials increased their protein intake last year.

On foodie Tiktok, dishes like black bean pasta, tofu-filled pasta sauce, and chickpea and cashew chocolate brownies are gaining popularity.

Cottage cheese has become a favorite due to its high protein content, with a 97% increase in demand reported by Ocado.

While young adults are focusing on consuming more protein, older adults are falling short of the recommended intake levels.

Research from the University of Birmingham in 2020 showed that older adults consume less protein than middle-aged adults.

Another study in 2020 by the University of Sheffield found that only a small percentage of adults over 65 met the daily protein recommendations.

It’s evident that while young people are increasing their protein intake, older adults are struggling to meet their protein needs.

Why middle-aged adults need more protein

Professor Elizabeth Williams from the University of Sheffield explains that protein requirements vary throughout life, with older adults needing more protein to combat reduced protein synthesis efficiency.

Other factors like muscle loss and anabolic resistance in older adults contribute to the need for higher protein intake.

As we age, our bodies need more protein, especially postmenopausal women, as hormonal changes can lead to increased muscle loss. – Credit: Hispanoristic via Getty

Why seniors struggle to eat enough protein

Anabolic resistance and sarcopenia worsen with age, especially among less active individuals, making it crucial for seniors to consume sufficient protein.

Dr. Connor Carrey emphasizes the importance of protein intake for older adults to maintain muscle mass and functional levels.

Not consuming enough protein can lead to muscle loss and bone health issues in older adults.

Elderly individuals and those with fragile health find it challenging to meet their protein requirements.

How much protein is enough?

Protein intake is usually measured in grams per kilogram of body weight, with recommended daily amounts varying for different age groups.

For older adults, experts recommend a higher protein intake of around 1-1.2g/kg per day to support muscle health and prevent muscle loss.

Increasing protein intake through meals like eggs can help middle-aged and older adults maintain muscle mass.

Breakfast is a meal when many of us are protein deficient. This means providing an opportunity to redress the balance.

How to eat enough protein for better health

Eating protein-rich foods like eggs for breakfast can help improve protein intake and support muscle health.

Experts recommend consuming 25g of protein in each meal to maintain muscle mass and overall health.

Switching to protein-rich breakfast options like eggs, yogurt, or nuts can help individuals increase their daily protein intake.

For those struggling to consume large quantities of protein, liquid sources like milk and dairy products are recommended.

Read more:

About our experts:

Professor Elizabeth Williams is a nutrition science professor at the University of Sheffield, specializing in diet-related chronic diseases and healthy aging.

Dr. Connor Carrey is a postdoctoral researcher and nutrition instructor focusing on proteins at University College Cork.

Amani Kite is a functional nutritionist specializing in intestinal, hormonal, and metabolic health.

Source: www.sciencefocus.com

Kilmer McCurry, a pathologist known for his groundbreaking theory on heart disease, passes away at age 91

In the 1960s and 1970s, Kilmer S. McCurry, a pathologist at Harvard Medical School, was controversially expelled into the basement. He claimed that the amino acid homocysteine had been overlooked as a potential risk factor for heart disease.

His daughter, Martha McCurry, later revealed that he passed away due to metastatic prostate cancer. His death was not widely reported at the time.

Dr. McCurry’s theory, which is still debated, suggested that inadequate vitamin intake could lead to high homocysteine levels in the blood, causing plaque buildup and artery stiffening. This challenged the prevailing cholesterol-centric view supported by the pharmaceutical industry.

Although Dr. McCurry acknowledged the importance of cholesterol, he believed homocysteine should not be ignored. However, his superiors at Harvard disagreed, leading to his lab being moved underground and eventually being told to leave.

In a 1995 interview, Dr. McCurry described his experience as “very traumatic.” He felt isolated and misunderstood by his peers.

At a medical conference in Boston, Dr. McCurry learned about Homocystinuria, a genetic disorder linked to high homocysteine levels. This discovery sparked his interest in the role of homocysteine in disease.

One case involving a young girl with homocystinuria who had a family history of the disease stood out to Dr. McCurry. This prompted him to further investigate the connection between homocysteine and artery stiffness.

“How did an 8-year-old die in the way an elderly man?” Dr. McCurry wrote in The Heart Revolution, recalling the incident that led to his controversial research.
credit…HarperCollins

After studying tissue samples, Dr. McCurry found evidence that homocysteine could lead to artery stiffening without cholesterol or fat buildup. This discovery further fueled his research into homocysteine’s role in heart disease.

The rejection of Dr. McCurry’s theory in the 1960s and 1970s took a toll on his career. He struggled to find employment for years after leaving Harvard.

Despite facing resistance, Dr. McCurry continued his research on homocysteine and its impact on heart health. His persistence ultimately paid off, as studies in the 1990s confirmed his earlier findings.

Dr. McCurry’s work shed light on the importance of homocysteine as a marker for cardiovascular disease risk. His perseverance and dedication to his research have since been acknowledged by the medical community.

Dr. McCurry’s early research laid the foundation for later studies linking homocysteine levels to heart disease risk. Subsequent investigations have supported his initial claims, validating his work and legacy in the field of cardiology.

Despite initial skepticism, Dr. McCurry’s contributions to the understanding of homocysteine have been recognized by the medical community. His insights have paved the way for further research into the role of this amino acid in cardiovascular health.

Dr. McCurry’s groundbreaking work continues to inspire researchers and clinicians to explore the complex relationship between homocysteine and heart disease. His legacy lives on in the ongoing pursuit of innovative approaches to cardiovascular care.

Source: www.nytimes.com

Are We Overly Concerned About Misinformation in the Age of Technology?

on On October 30, 1938, an American radio station aired a drama adaptation of HG Wells’ apocalyptic novel “War of the Worlds.” Some listeners were unable to differentiate between reality and fiction. Reports surfaced of panicked audiences mistaking it for breaking news. Academic research later estimated that over a million people thought they were witnessing an actual Mars invasion.

This incident highlights how misinformation can easily take root. Despite claims of mass panic, the reality is questioned. A national radio audience survey revealed that only 2% reported tuning into the broadcast, recognizing it as a work of fiction. Many attributed the panic to “The Play” or narrator Orson Wells rather than actual news reports. The confusion stemmed from listeners misinterpreting the drama as a real-life invasion.

Nearly a century later, misinformation remains a prominent issue. Headlines often report millions being exposed to false information online. A 2018 Gallup survey found that two-thirds of Americans encounter misinformation on social media. However, similar to the War of the Worlds broadcast, misinformation may not be as widespread as believed. Visits to reliable news sources increased significantly compared to unreliable ones during events like the Covid spread in spring 2020.

Complete misinformation may be more uncommon than assumed. Navigating between facts and fiction requires avoiding two errors. Believing in falsehoods or distrusting all information can both lead to challenges. Instead, finding ways to manage the risks associated with trusting information is crucial to discerning truth in the midst of a vast sea of data.

Rather than blindly accepting or rejecting information, we should develop tools to identify flawed assumptions and misinterpretations. Misinformation is not just about inaccurate facts but also about misinterpretations drawn from technically accurate information. We must equip individuals to discern distorted narratives, cherry-picked data, and hidden assumptions when navigating through the digital landscape.

Addressing false beliefs online requires more than labeling content as “misinformation.” It involves empowering individuals to critically assess and interpret information accurately. Striking a balance between trusting too much and distrusting everything is essential for combating false beliefs effectively in the digital age.

Adam Kucharski is a professor at the London School of Heig.Iene and Tropical Medicine, and authors Proof: The Uncertain Science of Certification (profile).

Read more

distrust: What makes reasonable people believe in irrational things by Dan Alleye (Heligo, £10.99)

An era of overthinking magic Amanda Montell (Atria, £10.99)

The art of uncertainty David Spiegelhalter: How to Navigate Chance, Ignorance, Risk, and Luck (Pelican, £12.99)

Source: www.theguardian.com

Baratoro takes on Pegi: A battle against ineffective video game age ratings

In recent months, game makers have faced challenges with age classifications for video games. Age ratings are meant to assist parents in determining if a game is suitable for their children. However, incorrect labels can mislead consumers and impact the success of a game.

Balatro is a poker game created by an anonymous developer known as LocalThunk. The game relies on chaos, with constantly changing conditions that challenge players to form the best possible poker hands. Players earn in-game money to buy new cards during each round, adding an element of strategy. Despite its initial success, Baratoro faced classification issues when it was labeled as a gambling game.

Originally rated for ages 3 and older, the game was later reclassified as suitable for adults only. This decision caused Baratoro to be removed from digital storefronts in Europe and Asia. The publisher, PlayStack, appealed the decision but faced obstacles in various regions.

Ultimately, after updates and appeals, Baratoro received a Pegi rating of 12 or higher, resolving the classification issue. The experience highlighted the challenges of rating systems and the impact they can have on game sales.

Pegi clarified its standards for assessing games that depict gambling, aiming to provide fair and accurate classifications. The case of Baratoro led to the development of a more detailed classification system for games involving gambling.

While the reclassification brought relief to publishers, it also raised questions about age rating systems and their ability to inform consumers about game content. The evolving nature of rating systems reflects the need to adapt to changing cultural expectations in the gaming industry.

Balatro’s journey highlights the importance of clear and accurate age classifications for games and the ongoing need to ensure that players understand the content they are engaging with.

Source: www.theguardian.com

Advancements in Dementia Research: Science can now accurately assess the “biological age” of your brain

If you’re like Khloe Kardashian, who recently turned 40, you may have considered testing your biological age to see if you feel younger than your actual age. But while these tests can tell you a lot about your body’s aging, they often overlook the aging of your brain. Researchers have now developed a new method to determine how quickly your brain is aging, which could help in predicting and preventing dementia. Learn more here.

Unlike your chronological age, which is based on the number of years since you were born, your biological age is determined by how well your body functions and how your cells age. This new method uses MRI scans and artificial intelligence to estimate the biological age of your brain, providing valuable insights for brain health tracking in research labs and clinics.

Traditional methods of measuring biological age, such as DNA methylation, do not work well for the brain due to the blood-brain barrier, which prevents blood cells from crossing into the brain. The new non-invasive method developed at the University of Southern California combines MRI scans and AI to accurately assess brain aging.

Using AI to analyze MRI brain scans, researchers can now predict how quickly the brain is aging and identify areas of the brain that are aging faster. This new model, known as a 3D Convolutional Neural Network, has shown promising results in predicting cognitive decline and Alzheimer’s disease risk based on brain aging rates.

Researchers believe that this innovative approach can revolutionize the field of brain health and provide valuable insights into the impact of genetics, environment, and lifestyle on brain aging. By accurately estimating the risk of Alzheimer’s disease, this method could potentially lead to the development of new prevention strategies and treatments.

Overall, this new method offers a powerful tool for tracking brain aging and predicting cognitive decline, bringing us closer to a future where personalized brain health assessments can help prevent and treat neurodegenerative diseases.

For more information, visit Professor Andrei Ilimia’s profile here.

https://c02.purpledshub.com/uploads/sites/41/2025/02/MRI-scan.mp4
Using AI to analyze MRI brain scans, you can see how quickly your brain is aging.

Source: www.sciencefocus.com

The best-preserved ice age animal ever found

There have been numerous ice age animals recovered from the world’s permafrost, ranging from woolly rhinos and wolves to urus, brown bears, and bison. Despite some being slightly damaged, they are often found in excellent condition.

One remarkable discovery was in 2017 when scientists excavated the remains of a small cave lion named Sparta from a frozen bank on the Siberian River. Although its golden fur was muddy and matted, its skin, soft tissue, and organs were all preserved. With closed eyes, it appeared more like a sleeping animal than one that had been dead for 28,000 years.

Another notable find was a two-month-old horse that died 35,000 years ago and was uncovered in Siberia in 2018. Though some fur was missing, the animal was largely intact, with hooves, skin, tail, and nostril hair preserved.

Various well-preserved woolly mammoths have also been discovered, some with grass in their mouths, milk in their bellies, and even dung on their bellies. While videos show people cutting into frozen mammoth carcasses and finding meat that looks fresh, the appearance can be deceiving.

Many animals found from the Ice Age are well preserved on the outside, but on the inside is a different story – Credit: Grafissimo

While these ice age animals and their tissues may appear well-preserved superficially, zooming in reveals a different story. The lack of antifreeze agents when freezing live cells causes ice crystals to form, leading to cell bursting.

Although tissues and organs may seem intact, the cells that form them are not. The damage to these cells has occurred over the thousands of years since the last ice age ended. While these ancient animals may seem well-preserved on a larger scale, they are damaged at a microscopic level.

The most well-preserved ice age beasts are likely those with intact cells, which died closer to the end of the last ice age and have been frozen since. One such candidate is a 9,000-year-old bison discovered in the Russian Far East in 2022, which may have cells viable for cloning attempts.

However, cloning attempts on ice age animals have so far been unsuccessful due to DNA deterioration after death. Despite the optimism, the chances of successful cloning are slim. For now, appreciating these mummified artifacts as they are offers a fascinating glimpse into the ancient past.


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New research reveals the impact of global warming on the pace of the next ice age

Glacier Age Earth

Zoonar/Alexander Savchuk/Alamy

Without human-induced climate change, the Earth could have been on track to enter another ice age within 11,000 years. This long-term prediction of the planet's “natural” climate is based on a new analysis of how orbital shapes and the tilt of their axis combine to change the amount of solar energy reaching Earth.

For millions of years, these orbital oscillations (known as the Milankovich cycle) entered and left the planet during the Ice Age about every 41,000 years. However, over the past 800,000 years, these ice ages, also known as ice age, have only occurred every 100,000 years. The term Ice Age, as it is currently, can be used to refer to whenever there is ice on Earth's poles, but generally refers to a wide range of ice Age periods.

The ambiguity of the record as the ice sheets were willingly retreated meant that it was not possible to explain how trajectory changes were involved in driving this long cycle.

If previous research attempted to link orbital changes to a specific period, such as onset of an ice age, Stephen Barker Cardiff University in England and his colleagues took a new tack. They came back fading during the “glacial age” where they saw the overall pattern of the ice age, also known as ice age. This allowed us to link changes in trajectories with changes in ice, despite the ambiguity of ice records over the past million years.

They discovered that these 100,000-year cycles appear to follow simple rules. For the last 900,000 years, following the most circular phase of the orbit, the planets also tilted towards the Sun, thus causing all interglacial periods after the Earth's axis wobbled at the farthest from the Sun.

This suggests that all three of these aspects of Earth's orbit (known as precession, oblique and eccentricity) are combined to create a 100,000-year glacial cycle, Barker says. “Since 900,000 years ago, this simple rule has predicted all of these major glacial end events, which says it's really very easy to predict,” he says.

Under that rule, the next ice age where you currently live is expected to begin approximately 66,000 years from the year, as there is no impact on greenhouse gas emissions. But that could only be started if there was an ice age before that,” says Barker.

The diagonal and gradual stages of precession that preceded the Holocene suggest that the glaciers are likely to be on track between 4300 and 11 and 100 years from now. We may now live in what would have been the beginning of this next ice age. “Of course, it's just a natural scenario,” says Barker.

More than 1.5 trillion tons of carbon dioxide have been released into the atmosphere as the Industrial Revolution is expected to cause sufficient warming to disrupt this long-term glacial cycle.

“The amount we've already put into the atmosphere is so big that it takes hundreds to thousands of years to pull it out through natural processes,” Barker says. However, he says more research is needed to define the planet's future natural climate in a more detailed way.

It states that this is consistent with previous modeling suggesting that anthropogenic emissions can prevent the onset of the next ice age, from dozens to hundreds of thousands of years. Andrei Ganopolsky At the Potsdam Climate Impact Research Institute in Germany.

But he says even at pre-industrial levels of CO2 in the atmosphere, it was high enough to delay the ice sheet advancement by 50,000 years. This is due to the unusually small orbital changes expected in thousands of years and the unpredictable way that Earth responds to those changes.

topic:

  • Climate change/
  • global warming

Source: www.newscientist.com

Slow Down Your Biological Age with This One Supplement

When it comes to maintaining health in old age, amidst the plethora of complex supplements advertised by influencers and podcast hosts, the key might just be Omega-3. Recent research suggests that regular consumption of Omega-3 fatty acid capsules can have a significant impact on longevity, potentially slowing the aging process by up to 4 months. Lower aging.

Biological age is a more accurate indicator of your life expectancy than your chronological age. It reflects the rate of DNA changes, which can vary from person to person.

A study published in the journal Nature Aging compared the effects of Omega-3 intake, vitamin D supplementation, and regular exercise on over 700 adults above 70. Participants were divided into three groups, receiving either 1g of Omega-3, 30mg of vitamin D, or engaging in 30 minutes of exercise three times a week, or no treatment at all.

Throughout the study, blood samples were collected and participants’ aging rates were measured using epigenetic “clocks.” The results showed that those taking Omega-3 experienced a biological age reduction of four months. When combined with vitamin D and exercise, the effects were even more pronounced, reducing the risk of various age-related ailments.

Experts, like Dr. Mary Ni Lochlainn, a Geriatrics specialist, are encouraged by these findings. However, some caution that more standardized tests for biological aging are needed to fully understand the impact of such interventions.

Read more:

  • Five tablets that may reverse aging (including those that may already be taken)
  • Are you sick?
  • Five simple ways to instantly find your “biological age”

Source: www.sciencefocus.com

‘Ease of Pregnancy for Young Women in the Age of Smartphone Fertility Apps’

A controversial app aimed at empowering women to manage their sex lives by predicting fertile days is being criticized for making inaccurate claims that could lead to unintended pregnancies.

Many women in the UK, including 69% of 18-24 year olds, use smartphone apps to track their menstrual cycles and identify their most fertile and least fertile days. However, experts caution that the data used by these apps to make predictions is often unreliable and limited.

Despite these concerns, one app, called the Period & Fertility Tracker, falsely promotes itself as a reliable method of contraception. Another app, Cycles, claims to accurately predict pregnancy chances daily but offers a disclaimer on its website stating it is for informational purposes only.

While some apps offer features to manage fertility goals and check chances of pregnancy each day, their effectiveness is doubted by experts. The increasing use of “natural contraception” methods raises further concerns, as studies show a rise in unintended pregnancies among users of these apps.

The accuracy of these apps in predicting fertile windows is also questioned, as they rely on traditional methods that have a high risk of error. Despite some apps requiring daily data entry for improved accuracy, the overall effectiveness of these methods remains low.

Regulators are urged to address the potential dangers posed by unregulated apps that claim to be contraceptives. While only one app is authorized to be sold as a contraceptive in some countries, the overall lack of regulation raises concerns about the safety and accuracy of these apps.

In conclusion, the growing trend of relying on period tracking apps for contraception raises serious issues about women’s health and the need for more reliable contraceptive methods.

Source: www.theguardian.com

How does the brain change with age when processing music?

As individuals age, their brains may experience difficulties in learning and decision-making due to a decrease in brain cells and cognitive function. However, neuroscientists have found that the brain can rewire connections to compensate for age-related cognitive decline through a process known as compensatory scaffolding. This involves forming new connections in the brain, strengthening existing ones, and even generating new brain cells. Yet, the specifics of how these new connections operate and interact, as well as their limitations, remain unclear.

Research conducted by Leonardo Bonetti and colleagues indicates that older individuals may exhibit more compensatory scaffolding and less unilateral brain activity compared to younger individuals when processing auditory information like music. Previous studies have shown that certain brain areas involved in memory and task processing decline faster in aging individuals, prompting Bonetti’s team to investigate how age impacts the brain’s response to compensatory scaffolding during music processing.

To test their hypothesis, Bonetti and his team studied brain activity in 37 young adults (aged 18-25) and 39 older adults (aged 60 and above) as they listened to music. Using magnetoencephalography and magnetic resonance imaging devices, the researchers mapped brain activity in specific regions responsible for sound processing and decision-making, such as the temporal lobe, frontal lobe, and hippocampus.

During the study, participants were asked to memorize a musical sequence and distinguish between the original version and modified versions with altered notes. Older participants showed less brain activity in most regions compared to younger participants, except for the left auditory cortex. This increased activity in the left auditory cortex suggested that the aging brain can reorganize and maintain function in certain areas, despite decreased activity in memory-related regions.

Notably, younger participants displayed more brain activity in memory and working memory areas, enabling them to detect modified musical sequences more effectively than older participants. The study also revealed that individuals with strong working memory were better at recognizing modified sequences, regardless of age group.

Overall, the research highlights that parts of the brain linked to memory and cognitive function may decline with age, but healthy aging can trigger brain reorganization to mitigate functional decline. Bonetti’s findings challenge previous notions that aging does not impact brain pathways associated with memory, decision-making, and other executive functions.


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Source: sciworthy.com

The Illusion of God: Exploring the Pope’s Popularity as a Deepfake Image in the Age of Artificial Intelligence

For Pope, it was the wrong kind of Madonna.

The pop legend behind the ’80s anthem “Like a Prayer” has been at the center of controversy in recent weeks after posting a deepfake image of the Pope hugging her on social media. This further fanned the flames of an already heated debate over the creation of AI art, in which Pope Francis plays a symbolic and unwilling role.

Catholic Church leaders are accustomed to being subject to AI fabrications. One of the defining images of the AI boom was Francis wearing a Balenciaga down jacket. The stunningly realistic photo went viral last March and was seen by millions of people. But Francis didn’t understand the funny side. In January, he referenced the Balenciaga image in a speech on AI and warned about the impact of deepfakes.


An AI-generated image of Pope Francis wearing a down jacket. Illustration: Reddit

“Fake news…Today, ‘deepfakes’ – the creation and dissemination of images that appear completely plausible but false – can be used. I have been the subject of this as well.” he said.

Other deepfakes include Francis wearing a pride flag and holding an umbrella on the beach. Like the Balenciaga images, these were created by the Midjourney AI tool.

Rick Dick, the Italian digital artist who created the image of Madonna, told the Guardian that he did not intend to offend with the photo of Frances putting his arm around Madonna’s waist and hugging her. Another image on Rick Dick’s Instagram page seamlessly merges a photo of the Pope’s face with that of Luigi Mangione, the man accused of killing UnitedHealthcare CEO Brian Thompson. They are more likely to be offended.


AI image of Madonna and Pope Francis. Illustration: @madonna/Instagram

Rickdick said Mangione’s image was intended to satirize the American obsession with Mangione being “elevated into a god-like figure” online.

“My goal is to make people think and, if possible, smile,” said the artist, who goes by the stage name Rick Dick, but declined to give his full name.

He said that memes (viral images that are endlessly tweaked and reused online) are our “new visual culture, fascinated by their ability to convey deep ideas quickly.”

Experts say the Pope is a clear target for deepfakes because of the vast digital “footprint” of videos, images, and audio recordings associated with him. AI models are trained on the open internet, which is filled with content featuring prominent public figures, from politicians to celebrities to religious leaders.

Sam Stockwell, a researcher at Britain’s Alan Turing Institute, said: “The Pope is frequently featured in public life and there are vast amounts of photos, videos, and audio clips of him on the open web.” said.

“Because AI models are often trained indiscriminately on such data, these models are more sensitive to the facial features and facial features of individuals like the Pope than models with less large digital footprints. It makes it much easier to reproduce the similarities.”

Rick Dick said the AI model he used to create the photo of Francis that was posted to his Instagram account and then reposted by Madonna was created on a paid platform called Krea.ai by the pope and the pop star. It is said that the robot was trained specifically for images. However, realistic photos of Francis can also be easily created using freely accessible models such as Stable Diffusion, which allows users to place Francis on a bicycle or on a soccer field with a few simple prompts.

Stockwell added that there is also an obvious appeal to juxtaposing powerful figures with unusual or embarrassing situations, which is a fundamental element of satire.

“He is associated with strict rules and traditions, so some people want to deepfake him in unusual situations compared to his background,” he said.

Adding AI to the satirical mix will likely lead to more deepfakes from the Pope.

“I like to use celebrities, objects, fashion, and events to mix the absurd and the unconventional to provoke thought,” said Rick Dick. “It’s like working on a never-ending puzzle, always looking for new creative connections. The Pope is one of my favorite subjects to work on.”

Source: www.theguardian.com

Bronze Age Briton Experiences Brutal Attack and Cannibalism

New research has revealed that during the early Bronze Age in England, at least 37 people may have been “systematically dismembered” and eaten in the aftermath of “extremely violent” attacks.

The study, published in the journal ancient, revealed that more than 3,000 bones were excavated from a 50-foot hole at Charterhouse Warren in southwest England.

The bones, which were first discovered in the 1970s by cave explorers, showed an “abundance of cut marks,” prompting researchers to conduct further analysis.

Lead author Rick Schulting, a professor of scientific and prehistoric archeology at the University of Oxford, described the violence inflicted on the bodies as exceptional, with victims being killed with blows to the head, systematically dismembered, skinned, and crushed.

The study suggests that this extreme violence likely occurred in a single event between 2210 BC and 2010 BC, making it a unique example of violence in early Bronze Age Britain.

An example of cranial trauma in a Bronze Age skull recovered from Charterhouse Warren.
Antiquity Publications Ltd / Cambridge University Press

This act of violence was likely not isolated and may have sparked a cycle of revenge within and between communities in the Early Bronze Age, according to Mr. Schulting.

The motives behind such attacks are difficult to determine, but the study suggests that tensions may have escalated from accusations of theft and witchcraft, leading to an uncontrollable spiral of violence.

Victims may have been eaten to dehumanize and treat them like animals, involving a large number of aggressors based on the number of victims and the dismemberment process, the study noted.

The bones were found alongside animal fossils, indicating early evidence of slaughter, which the researchers believe was driven by hunger as the attackers had access to plenty of food.

Source: www.nbcnews.com

The age of Saturn’s rings may surpass our previous estimates

Saturn and its rings photographed by the Cassini spacecraft in 2016

NASA/JPL-California Institute of Technology/Space Science Institute

Modeling studies suggest that Saturn's rings are much older than previously thought and may have formed around the same time as Saturn. But not all astronomers are convinced, and the researchers who were part of the team that calculated that Saturn's rings are relatively young insist that the new findings do not change their findings. are.

For most of the 20th century, scientists believed that Saturn's rings formed with the planet about 4.5 billion years ago. But when NASA's Cassini spacecraft visited Saturn in 2004, it found its rings to be noticeably free of contamination from tiny space rocks known as cosmic dust. This innocent appearance indicated that they were much younger. Estimates for 2023 put their age between 100 million and 400 million years.

now, Ryuki Hyodo in Japan Space Science Institute He and his colleagues calculated that Saturn's rings should be much more resistant to contamination from space dust than previously thought, allowing them to maintain a pristine appearance for long periods of time. Hyodo and his team haven't calculated a new age for the ring, but they suggest it could be as old as Earth, as astronomers once believed.

The researchers then modeled how these particles moved through Saturn's magnetic field, and found that only a small portion settled on the rings, while the majority were drawn into Saturn's atmosphere. It turned out that the object was either destroyed or bounced back into space. “The accretion efficiency of Saturn's rings is only a few percent, which is much smaller than previously assumed,” says Professor Hyodo. This could extend previous ring age estimates by hundreds of millions to billions of years, he said.

Sasha Kemp A member of the team at the University of Colorado Boulder that calculated an earlier, much younger estimate of the age of Saturn's rings, he and his colleagues considered not only the ring's contamination efficiency, but also its contamination efficiency, taking into account the time it would take. He said he used a more complicated method. This is because matter reaches the ring and disappears. The values ​​calculated by Hyodo and his colleagues do not change the overall results for that age, Kempf said. “I'm sure this doesn't mean we really have to go back to square one.”

However, Hyodo argues that times should change dramatically as pollution efficiency declines. “They assumed an efficiency of 10%, but we reported 1%. The equation tells us that it's a billion years, or a billion years.”

Kemp also said that while the new simulation assumes that Saturn's rings are made of solid ice particles, the actual rings are made of soft particles that are much larger in size than what was modeled in the study. He said there was. “If you fire particles into these fairly complex and soft structures, the outcome of such collisions will be very different,” he says.

Hyodo argues that this assumption is standard for many similar studies. “No one knows what kind of effect the difference in ice will have,” says Hyodo. “It may or may not be more efficient.”

Lotfi Ben Jaffer A professor at France's Paris Institute of Astrophysics, who was not involved in either age-estimation study, said the study suggests the rings are not as young as recently claimed. “This is a positive step toward a lack of modeling efforts needed to adequately address the fundamental question of planetary ring system formation and evolution,” he says.

But Hyodo and his team need to improve their modeling to more accurately estimate the ring's contamination, he says, so they can more accurately determine its age.

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Source: www.newscientist.com

The Age of the Brain: How 13 Types of Proteins in the Blood Can Give Clues

Researchers trained artificial intelligence model to measure people's age from brain scans

Laboratory/Alamy

The abundance of 13 types of proteins in the blood appears to be a strong indicator of how quickly the brain is aging. This suggests that blood tests could one day help people track and even improve their brain health.

Most previous studies have looked at protein markers of brain aging in the blood. Less than 1000 peoplesay nicolas seyfried from Emory University in Atlanta, Georgia, was not involved in the new study.

To get a broader idea of ​​the effects of these proteins, Liu Weishi Researchers from Fudan University in China analyzed MRI brain scan data from around 11,000 adults (approximately 50 to 80 years old at the time of the images) who took part in the UK Biobank project.

Liu's team trained an artificial intelligence model using data from 70% of the participants to determine features of brain images, such as the size of different brain regions and how different parts are connected to each other. The age of the participants was predicted based on When the model was applied to the remaining 30% of participants, its predictions were accurate to within 2.7 years of their actual age.

The researchers then used the model to predict the age of another group of about 4,700 people, with an average age of 63, who also underwent brain imaging for UK Biobank. The researchers calculated the difference between these participants' actual ages and their AI-predicted ages, called the brain age gap. “The higher the age predicted by the AI ​​compared to the actual age, the faster the brain ages,” Liu says.

The group also provided blood samples around the same time as the brain imaging. From this, the research team identified eight proteins that appear to increase in abundance as brain age increases, and five proteins that appear to decrease in abundance.

In an analysis of data from previous studies, researchers confirmed that these proteins are produced by brain cells and that their levels can influence the risk of dementia and stroke.

This suggests that blood tests for these proteins may reveal how quickly the brain ages. “These markers may be canaries in the coal mine that say, 'Hey, look, let's start doing interventions that slow brain aging while there's still plenty of time,'” Seyfried said.

But for this to be helpful, we need to know that these proteins can change with lifestyle changes. “If I run this much, I'll lose this much weight, if I change my diet, [then] We can correct these levels and bring them back into normal range,” Seyfried says.

Because the study was conducted primarily among wealthy white people, Seyfried said more research is needed to see if the results hold true for other populations with more diverse ethnicities and income levels.

The research team now hopes to conduct studies in animals to determine exactly how the 13 proteins affect the brain. For example, researchers might test whether disrupting levels of these proteins affects cognition or even the development of neurodegenerative conditions, Liu says. “In the coming decades, this could open up ways to target proteins to slow aging and disease.”

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Source: www.newscientist.com

Exploring Age and Gangsterism in ‘Mafia: Definitive Edition’ | Game Review

I I'm at a stage in my life where my options are limited when it comes to the job I dreamed of as a child. I'm too old to play football for Scotland, and I have no intention of owning a brewery or becoming an astronaut. (In hindsight, it was a bit ambitious to aspire to a job that combined all three.) Also, in this economy, many people are willing to take a job without knowing if the new job will work out. It is dangerous to abandon it. Luckily, video games allow you to try it out before you take the plunge. Besides, you're never too old to be a gangster, right? That's why I started playing Mafia: Definitive Edition.

I played a little bit of the original version from 70 billion years ago. But it didn't last long. Because there were driving sections that were as unintuitive and poorly controlled as the buggy on Mars.

For me, the dream of becoming a gangster was less about murder and extortion, and more about the social aspect of just hanging out with guys and yelling abuse. This is more than fully expressed in this game. Guys tell me “always soft when it comes to broads” as soon as I start taking an interest in the bar owner's daughter. Hey, does that Jabroni really have my number!

The story of the main character Tommy is how I imagine his path into the mafia. I was born on the east coast of Scotland of Polish descent, so I couldn't trace my family back to Sicily and had no blood ties to any of my five families. Like Tommy, I started out as a taxi driver, and one night I picked up some injured people from a rival gang and did a job of such high quality that I was invited to do more work for them. I imagined it would be. This is the mob equivalent of a 5-star review on Uber.

It's not Goodfellas or The Godfather, but it's solid… Mafia: Definitive Edition. Photo: Hangar 13

With the updated version, you don't actually have to do much driving. You can skip between destinations with the press of a button, but this means you'll miss out on the chat throughout the journey that helps explain the story in more detail. And that's a good story. It's not Goodfellas or The Godfather, but I thought it was solid and the voice actors did a pretty good job.

The script is full of clichés, but they remind me of the mafia movies I grew up loving, so they put me at ease. Politicians are always “taking action.” Gangs always want to “legalize” eventually. It's not about saving lives, it's about saving “donkeys.” you don&#39t thing“Do what needs to be done.'' You are not brave, you have a “real set of balls”. That's not all Any It's a set of balls, but it's a set that frequently requires commentary and praise. My boss, Don Salieri, kept saying to his co-workers, “Look at this kid's set of balls.” Isn't it strange that the mafia doesn't have a human resources department? After one meeting, everyone leaves the room, leaving not one but two cigars burning in the ashtray. Therefore, I don&#39t think much about safety and health in this workplace either.

Some things are a little silly. My character is still called “The Kid” even though he's 30 years old. Maybe they're bootlegging an elixir of life with bourbon. To get the weapon, you have to go see a man named Vincenzo. I am often told that he has just what I need. Most often it will be a baseball bat. I could have bought it at Toys R Us.

However, I find this game very comfortable to play in a predictable and undemanding way. Most of the time it's like settling down with a cozy crime thriller or potato-based soup, but there are some very difficult levels. Completely unforgiving races, bike chases with no room for error, and a level where you have to shoot down a plane, not only did you have to dial down the difficulty to make it easier, but you turned down the controller sensitivity so much that the sights It moved like an ocean tanker. (Thanks to Reddit for the last tip. Also, thanks for the comments from other people who suffered at that level. It was like a video game PTSD group.)

But as I feel comfortable in this nice mafia job with prohibitions and big money, one character gets bored and tired of this life. “I get rusty because we sit there and crush balls for six months. Then I&#39m fighting to stay awake while Don tells me stories.” he says.

I think mafia, like any other job, gets boring after a while.

Source: www.theguardian.com

Archaeologist argues that Bronze Age town of Arnata exemplifies ‘slow urbanism’

During the Bronze Age, northwestern Arabia, the region between Mecca and Aqaba, was home to interconnected city walls centered around small fortified cities, such as the recently discovered town of al-Nata in the Khyber Oasis in the Medina province of Saudi Arabia. There were oases dotted around the area.

3D virtual reconstruction of the Bronze Age town of Arnatar. Image credit: Charloux others., doi: 10.1371/journal.pone.0309963 / AFALULA-RCU-CNRS.

The development of metropolitan settlements was a major step in the evolution of human civilization.

This urbanization process can be difficult to study in northwestern Arabia, in part due to the region's lack of well-preserved archaeological sites compared to better-understood regions such as the Levant and Mesopotamia. I understand.

However, excavations in recent decades have uncovered exceptional ruins that provide insight into the early stages of urbanization in northwest Arabia.

In a new study, CNRS archaeologist Guillaume Charroux and colleagues focused on the Bronze Age town of Al Nataa, which was inhabited from around 2400 to 1500 BC.

The town is approximately 1.5 hectares in area and includes a central area and nearby residential areas surrounded by a protective wall.

According to researchers, about 500 people lived in Arnata.

Although similar in size and composition to other sites of similar age in northwest Arabia, these sites are smaller and less sociopolitically complex than modern sites in the Levant and Mesopotamia.

Scientists suggest that Al Nata represents a state of “hypo-urbanization”, a transition period between nomadic pastoralism and complex urban settlement.

Archaeological evidence so far indicates that small fortified cities dotted northwestern Arabia during the Early to Middle Bronze Age, a period when other regions were showing later stages of urbanization.

Further excavations throughout Arabia will provide more detailed information about the timing of this transition and the changes in social structure and architecture that accompanied it.

“Archaeologists have discovered the first small Bronze Age town (c. 2400-1300 BC) in northwest Arabia connected to an extensive network of walls, raising questions about the early development of local urban planning,” the authors said.

Their paper was published in the online journal PLoS ONE on October 30, 2024.

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G. Charroux others. 2024. Bronze Age towns in the walled oasis of Khyber: A discussion of early urbanization in northwestern Arabia. PLoS ONE 19 (10): e0309963;doi: 10.1371/journal.pone.0309963

Source: www.sci.news

Uncover Your True Biological Age with This Straightforward Balance Test

When it comes to balancing on one foot, it may seem like a simple task, but it could actually indicate more than you think. Recent research suggests that struggles with balance could be a sign of accelerated aging in the body.

Scientists at the Mayo Clinic in Minnesota have discovered that the ability to balance on one leg can reveal the rate of aging in the neuromuscular sensory system, particularly in older individuals.

This sensory system, comprised of nerves connecting muscles to the brain and spinal cord, plays a crucial role in facilitating movement. Its decline with age can lead to slower reflexes and movements.


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“Balancing on one leg involves various physiological components like leg strength, postural stability muscles, neuromuscular coordination, and sensory information, all of which tend to decrease with age,” explained Professor David Proctor, an aging and exercise expert at Pennsylvania State University in the US. This information was reported by BBC Science Focus.

Preventing or slowing down the decline in strength and balance as we age can significantly impact one’s ability to stay functionally independent in the long term.

The study involved 40 participants aged between 50 and 80, who were assessed on their ability to balance on one leg. Despite similar height, weight, and activity levels, age was the only differing factor among the participants.

Each participant performed four 30-second balances with eyes closed and eyes open for both legs. The researchers recorded the duration of balance maintained within each 30-second interval to evaluate the impact of age on balance.

The results indicated a direct correlation between age and trembling, with a 6.3% increase in tremors with eyes open and a 10.5% increase with eyes closed for every decade of age. Additionally, the time spent balancing decreased by 2.2 seconds per decade on the non-dominant leg and 1.7 seconds on the dominant leg.

This suggests that balance duration is a valid marker of aging and a potential indicator of fall risk in older adults.

Although balancing for 30 seconds may not require significant muscle strength, it heavily relies on good neuromuscular control, which diminishes with age, leading to increased sway and reduced balancing time.

Fortunately, research highlights the benefits of balance and aerobic exercises like swimming, running, and cycling in preventing age-related decline in balance and muscle control.

About our experts

Dr. David Proctor, a professor at Pennsylvania State University, USA, specializes in kinesiology, physiology, and medicine. His research has been featured in various scientific journals.

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Source: www.sciencefocus.com

Norway Implements New Minimum Age Requirement of 15 for Social Media to Safeguard Children

Norway has set a strict minimum age limit of 15 for social media in its efforts to combat tech companies that are deemed harmful to young children’s mental development.

Prime Minister Jonas Gare Stoer of Norway acknowledged the challenges ahead in this battle but emphasized the need for politicians to intervene to shield children from the influence of algorithms.

The utilization of social media platforms by the industry has been criticized for potentially causing users to become fixated and unstable.

Despite Scandinavian countries already having a minimum age limit of 13, a significant percentage of younger children still access social media, as highlighted by a survey by the Norwegian Media Authority.

The government has pledged to implement additional safeguards to prevent children from bypassing age restrictions, including revisions to personal data laws mandating a minimum age of 15 for consenting to personal data processing on social media platforms and the development of age verification barriers.

Emphasizing the need for protection of children from harmful content on social media, the prime minister spoke of the powerful impact that tech companies can have on young minds. He acknowledged the formidable challenge ahead but stressed the essential role of politics in addressing this issue.

While recognizing the potential benefits of social media in fostering community for isolated children, he cautioned against excessive reliance on algorithms for self-expression, citing the risk of becoming overly focused and detached.

Minister for Children and Families Gjersti Toppe engaged with parents in Stavanger to advocate for stricter online regulations for children as a means of supporting parental decisions in safeguarding their children’s online activities.

The government is exploring methods to enforce restrictions without infringing on human rights, such as potentially requiring bank account information.

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Australia has also proposed a social media ban for teenagers and children, with the age limit likely to fall between 14 to 16 years old.

France is currently testing a ban on mobile phone usage in schools for students up to 15 years old, with plans for potential nationwide implementation from January pending the trial’s success.

Source: www.theguardian.com

Rare Bronze Age Wooden Tools Unearthed in British Trenches

Archaeologist removing excess mud from a Bronze Age plow

wessex archeology

A Bronze Age wooden spade has been unearthed by British archaeologists. It is extremely rare that wooden artifacts from such an ancient period have been preserved.

This spade offers a glimpse into life at a time when people grew crops and increasingly lived in settled communities.

“It’s very specific,” he says ed treasure At Wessex Archaeology, Salisbury, UK. “It’s a very direct connection to the past.”

The spade was discovered in a bog near Poole Harbor on England’s south coast, where Wessex Archeology has been excavating for several years. of The Moors of the Arne Coastal Change Project is working to restore the region’s coastal wetlands, and archaeologists are carrying out excavations to ensure that no useful artifacts are accidentally lost.

The researchers were digging a ring gully, a circular trench that is thought to have originally surrounded the shelter. In one of the ring gullies they found the handle of a spade. “It was an almost unbelievable moment,” says Treasure, who was not personally present. “I could tell right away that it was a carved piece of wood.” The spade was carved from a single piece of oak.

Moist conditions did not expose the shovel to oxygen, slowing down rot.

Using debris found with the spade, the team radiocarbon-dates the spade to 3,400 to 3,500 years ago. “A small part of the spade broke off during the burial, but we used it as a date,” Treasure said. Nearby pottery also showed a similar age. This dates the origins of the spade back to the Middle Bronze Age.

“We’re in the midst of some pretty big changes in prehistoric Britain,” Treasure says. People stopped living as nomads and began spending more time in settled communities, growing a variety of grains and other foods.

However, there are no signs of permanent settlement at this location throughout the year. Of course, it was and still is a wetland. “We strongly believe this is a seasonal use of this landscape,” Treasure says. People may have brought in animals for summer grazing, cut peat for fuel, or collected reeds for thatching.

Future research will try to understand how plows were made and what they were used for. “It may have been used to cut peat on site,” Treasure said. “It may also have been used to dig the ring ditch where it was discovered.”

It is rare that a spade from this era has been preserved. One of the only other examples is the Brynlow shovel. Discovered in Cheshire in 1875rediscovered in the 1950s It was discovered by fantasy author Alan Garner in a school assembly hall and was eventually radiocarbon dated to almost 4,000 years ago.

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Source: www.newscientist.com

Finds from the Bronze Age indicate that market economics may have originated earlier than previously believed

Bronze Age metal hoard from Weisig, Germany

J. Lipták/Landesamt für Archäologie Sachsen

Bronze Age Europeans earned and spent money in much the same way we do today, indicating that the origins of the “market economy” are much older than expected.

That’s the controversial conclusion of a new study that challenges the view that elites were the dominant force in Bronze Age economies and suggests that human economic behaviour may not have changed much over the past 3,500 years or more.

“We tend to romanticize European prehistory, but the Bronze Age was not just a fantasy world where townsfolk and peasants served their needs as a backdrop for great lords,” he said. Nicola Ialongo “It was a very familiar world, with family, friends, social networks, markets, jobs, and ultimately having to figure out how to make ends meet,” says Professor at Aarhus University in Denmark.

Bronze Age Europeans, from 3300 to 800 BCE, were not meticulous bookkeepers like people in other ancient societies, such as those in Mesopotamia. But Ialongo and Giancarlo Lago Researchers at the University of Bologna in Italy suggest that the treasure trove of metal they left behind may hold important insights into their daily lives and the roots of modern economic behavior.

Lago and Ialongo analyzed more than 20,000 metal objects from Bronze Age burials in Italy, Switzerland, Austria, Slovenia and Germany. These metal objects came in many different forms, but around 1500 B.C. they began to be standardized by weight, which is how they were classified. Many experts These are distinguished as a type of pre-monetary currency.

“The discovery of widespread systems of measurement and weight allows us to model things that have been known for centuries in ways that have never been modeled before,” Ialongo says. “This not only gives us new answers to old questions, but it also gives us new questions that no one has asked before.”

The team found that the weight values ​​in their vast sample followed the same statistical distribution as the daily expenses of a modern Western household: small everyday expenses, represented by lighter pieces, dominated the consumption pattern, while larger expenses, represented by heavier pieces, were relatively rare. This pattern is similar to that found in the average modern wallet, with many small bills and very few large bills.

Lago and Ialongo interpret their find as evidence that the Bronze Age economic system was regulated by market forces of supply and demand, with everyone participating in proportion to how much they earned. This hypothesis contrasts with the influential view put forward by anthropologist Karl Polanyi in the 1940s, who characterized the modern economy, based on monetary gain, as a new phenomenon distinct from ancient economies centered on barter, gift exchange, and social status.

Richard Brunton A researcher from Purdue University in Indiana called the study credible: “I think this argument will stimulate debate among archaeologists and economic anthropologists who have been based for decades on erroneous assumptions about the antiquity of market economies,” he said.

“I think this paper adds useful fuel to that criticism,” Brunton says, “and to me it sheds entirely new light on the function of bronze deposits and the potential use of bronze coins as a unit of exchange.”

but, Erica Schonberger Researchers at Johns Hopkins University in Maryland are skeptical of the team’s conclusions. “It’s dangerous to assume that ordinary people in premodern times used money in normal economic activities,” says Schonberger. “For example, medieval English peasants only got money for selling their produce when lords began to demand money in lieu of rents or taxes in kind. They gave most or all of that money directly to the lords. They sold to get money, but they didn’t use it to buy things they needed. We’re still a long way from modern economic behavior.” [in the Middle Ages].”

Lago and Ialongo hope that their work will inspire other experts to carry out similar studies on artefacts from different regions and cultures. They suggest that market economies are a natural development across time and cultures, and that such systems are not something new or unique that has emerged in Western societies over the past few centuries.

“Technically, we haven’t proven that the Bronze Age economy was a market economy,” Ialongo says, “we simply have no evidence that it wasn’t. And we’re just pointing out a contradiction: why is everyone so convinced that there wasn’t a market economy when everything we see can be explained by a market economy model? In other words, if the simplest explanation works well enough, why should we have to imagine a more complex one?”

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Source: www.newscientist.com

New study claims that this diet can reverse biological age in just eight weeks

Increasing plant-based food consumption is known to benefit both health and the environment, yet only a few individuals fully commit to a vegan diet.

However, a recent study suggests that following a vegan diet for just eight weeks could potentially reverse one’s biological age. Researchers discovered that participants who adhered to a vegan diet showed a reduction in their estimated biological age, as indicated by DNA methylation, an epigenetic marker.

Dr. Lucia Aronica, along with other co-authors from BBC Science Focus, explains, “DNA methylation and other epigenetic modifications regulate gene activity and expression.” These modifications change in specific ways as we age, allowing scientists to track and understand the aging process.

The study, as detailed in BMC Medicine, involved 21 adult identical twin pairs, where one twin followed a vegan diet while the other maintained an omnivorous diet for eight weeks. Blood samples were taken before and after the study to measure DNA methylation levels and assess the effects of each diet.

Results demonstrated that only the vegan group showed a slowing of the epigenetic aging clock, with some participants appearing almost one year younger by certain measures. A vegan diet was associated with reduced estimated ages of various organ systems, such as the heart, hormones, liver, and inflammatory and metabolic systems.

The average reduction in biological age for the vegan group was a remarkable 0.63 years. However, researchers caution that these findings should be interpreted carefully due to other factors like weight loss, as participants in the vegan group lost an average of 2 kilograms more than those in the omnivorous group.

Despite the promising outcomes, further research is necessary to understand the long-term effects of a vegan diet on aging and to differentiate between the effects of dietary composition and weight loss.

Experts like Dr. Hou Lifang suggest that additional studies are needed to validate these results, emphasizing the need for caution when drawing broad conclusions. While the study provides valuable insights, more research is required to fully comprehend the impact of a vegan diet on aging.

About our experts

Lucia Aronica focuses on epigenetics and gene-environment interactions in health outcomes. She is currently leading epigenetic analysis in the largest low-carb vs. low-fat diet study for weight loss. Aronica teaches nutritional genomics at Stanford University.

Varun Dwaraka is a bioinformatics researcher specializing in aging, epigenetics, and genetics. He has co-authored various publications on DNA methylation, tissue regeneration, and the epigenetic clock.

Hou Li-Fan, MD, MS, PhD, is a Professor of Preventive Medicine, integrating epidemiology with molecular technologies in disease studies focused on molecular markers and disease prevention.

Source: www.sciencefocus.com

The Impact of Alcohol on Biological Age: A Closer Look

It is widely known that excessive alcohol consumption is detrimental to health, a fact that has been established by scientific research over many years.

Despite this, there is still much to learn about the effects of alcohol on the body and whether consuming small amounts of certain types of alcohol may have potential benefits.

New research is shedding light on how alcohol impacts the body and accelerates the aging process, particularly at a cellular level that determines biological age.

Unlike chronological age, which simply counts the number of years someone has lived, biological age assesses cellular function and disease risk. Two key indicators of biological age, telomere length, and epigenetic age, provide evidence of the harmful effects of alcohol consumption on the body.


Drinking alcohol increases the risk of DNA damage

Telomeres are essential components of our genetic structure, protecting chromosomes from damage during cell replication. Over time, telomeres naturally shorten as cells divide. Shortened telomeres are associated with age-related diseases such as Alzheimer’s, cancer, and heart disease.

Research conducted by Anya Topiwala and her team at Oxford University in 2022 found that excessive alcohol consumption leads to a reduction in telomere length, accelerating the biological aging process.

Observational studies have shown that consuming 29 or more units of alcohol per week can result in a 1-2 year change in telomere length compared to drinking less than six units per week. Individuals with alcohol use disorders were found to have even shorter telomeres.

The exact mechanism by which alcohol shortens telomeres is not fully understood, but it is believed to be related to oxidative stress caused by alcohol consumption.

Certain types of alcohol are bad for you

Epigenetic age, which assesses DNA methylation linked to aging using multiple biomarkers, indicates the impact of lifestyle choices on biological age. Studies have shown that cumulative alcohol exposure increases biological age, with liquor drinkers being at a higher risk of premature aging compared to beer or wine drinkers.

Further research is being conducted to better understand the connection between alcohol consumption and biological aging, as the specific reasons behind these effects are not fully clear.

Can biological age be reversed?

While biological aging is theoretically reversible, the practical methods to achieve this reversal are not yet established. Scientists believe that by addressing environmental factors and lifestyle choices that impact DNA function, it may be possible to slow down the aging process.

Quitting or reducing alcohol consumption has been shown to slow down biological aging. Both studies emphasize that moderate drinking does not have any protective effects and that increased alcohol consumption accelerates the aging process.

About our experts

Anya Topiwala: A psychiatrist at Oxford University, Topiwala’s research focuses on the impact of alcohol consumption on brain health using large datasets and advanced imaging techniques.

Hou Li-Fan: A Professor of Preventive Medicine at Northwestern University, Dr. Hou’s research integrates epidemiological methods with molecular technologies to identify molecular markers and understand their role in disease prevention.


Source: www.sciencefocus.com

Ancient Norwegian archaeologist uncovers Stone Age leader’s visage

The skeletal remains of a 4,000-year-old Scandinavian man were discovered in 1916. Hitla island, Norway.

The male Hitra was approximately 169 cm tall, had blond hair and blue eyes. Image courtesy of Thomas Foldberg/Åge Hojem/NTNU University Museum.

“In 1916, the road up the hill to the Fausland farm on the island of Hitra was being renovated using gravel from the coast along the deepest part of Balmsfjorden,” said Dr. Birgitte Skarr of the NTNU University Museum. a colleague said.

“Suddenly, the workers noticed human bones among the sand and stones.”

“The bones belonged to an approximately 25-year-old man who died at the end of the Stone Age, 4,000 years ago.”

“He is believed to have drowned. At the time of his death, the sea level would have been 12.5 meters higher than it is now, and the site of his discovery would have been at a depth of 4 meters.”

Archaeologists also found and studied a Hitraean dagger and arm guard.

“The arm guard is a rectangular bone with two holes that would have been attached to the wrist of the bow hand,” they said.

“The guard protects your wrist from the impact of the bowstring when you shoot an arrow.”

“These pieces of equipment may indicate that he was a warrior.”

“It is impossible to determine whether the drowning was the result of a fight or an accident,” Dr. Skarr said.

“What we do know is that the Hitraeans lived in a very turbulent time.”

“Up until that point, most people lived as hunter-gatherers, and agriculture only became fully established in Norway at the end of the Stone Age, during the time of the Hitra people.”

“Although elements of agriculture had been introduced earlier in southern and eastern Norway, agriculture was first established during this period in central Norway, along the coast of western Norway, and in northern Norway.”

“We believe that agriculture was introduced by settlers who came to Norway to obtain more land, and they were willing to use weapons to do so.”

“So we have to expect violent clashes between the people who were already living here and the newcomers.”

“New people brought new knowledge to the country, not just about animal husbandry and agriculture, but also about other ways of organizing society.”

“They lived in a class society, had different worldviews, different religions, and large networks that spanned Europe.”

“This knowledge led to major political, economic, and social changes.”

“There is still much we don’t know about this dramatic period in Scandinavian history, and research continues.”

“His DNA is currently being analyzed at the Lundbeck Foundation Geogenetics Center at the University of Copenhagen.”

Source: www.sci.news

The groundbreaking project aiming to decipher and potentially reverse menopausal age

From the moment you begin as an immature egg in your grandmother’s womb, your fertility journey is limited. However, scientists at Cambridge University may soon change that reality in their bright labs.

Dr. Staša Stankovic is one of these scientists. Her research at Addenbrookes Hospital in Cambridge has uncovered valuable data in the field. Now, Stankovic is focused on unraveling the mysteries surrounding fertility and menopause.

Women’s ovaries hold a finite supply of eggs that represent their fertility. Stankovic compares this concept to an hourglass, where the sand (eggs) can only flow in one direction until it runs out, signaling the onset of menopause.

“In science, we aim to control the hourglass’s middle part,” she explains. “Our goal is to limit the eggs’ loss over time, preserving the highest quality eggs for as long as possible.”

Working with a team for five years, Stankovic is developing a method to predict the natural fertile period and age of menopause with 65% accuracy, aiming for 80% accuracy in clinical practice.

Additionally, the team is exploring potential drug solutions to address infertility and potentially delay menopause. The onset of menopause is influenced by the ovarian reserve and the rate at which eggs deplete over a woman’s lifetime, typically occurring around age 50 with fewer than 1,000 eggs left.

For women experiencing early menopause or premature menopause, these drug treatments could be life-changing.

Your Menopausal Age

Researchers are studying genetic factors using a blood sample rather than physical examinations to understand how genes impact fertility and menopause.


The research team analyzed data from over 200,000 women in the UK Biobank, which provided insights into menopause, fertility, and overall health metrics. This data will help researchers make connections with other health outcomes like dementia and diabetes.

By identifying over 300 genetic variations linked to menopause, researchers foresee potential solutions for ovarian diseases and early menopause using drug interventions.

Stankovic cautions against relying solely on IVF and egg freezing as magical solutions, emphasizing the need for more effective treatments with higher success rates.

Effects of Delaying Menopause

The research team is hopeful about developing infertility drugs that not only address symptoms but also regulate ovarian function. While the drug’s availability is estimated within the next decade, rigorous testing and validation are still required.

The team’s focus is on identifying crucial genes, conducting testing in ovarian models, and formulating drugs that maintain egg quality and quantity as women age.

Ultimately, the goal is to delay menopause and extend reproductive lifespan. Preliminary studies on mice have shown promising results, but further research is needed before human trials can begin.

Aside from fertility benefits, delaying menopause could also impact women’s overall health, offering insights into various diseases associated with menopause.

About Our Experts

Dr. Staša Stanković is an ovarian genomicist with a PhD in reproductive genomics from the University of Cambridge. Her groundbreaking research has been published in top scientific journals, shedding light on the biological mechanisms behind ovarian aging and menopause.

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Source: www.sciencefocus.com

6 Neuroscience-Backed Habits to Maintain Brain Health as You Age

If you’ve ever felt like your cognitive abilities are not as sharp as they used to be, you might be struggling to recall names of actors or politicians in the news, for example. Perhaps mental arithmetic is not as easy for you anymore. This reflection may lead you to ponder the state of your brain and whether it’s on a downward trajectory.

It’s important to consider these aspects early on because brain development typically peaks in your 20s, and then cognitive functions gradually decline with age. Additionally, there is a growing risk of dementia, particularly associated with diseases like Alzheimer’s, in aging populations. However, both cognitive decline and dementia risk can be influenced by what experts call “modifiable risk factors,” offering a beacon of hope that there are lifestyle changes you can make to maintain mental acuity and lower the risk of dementia.

Be mentally active and boost your cognitive reserve

Psychologists and gerontologists often talk about cognitive reserve, which refers to the brain’s ability to adapt to aging and disease challenges. People with high cognitive reserve can perform well on cognitive tests despite exhibiting biological markers of Alzheimer’s disease, like protein build-up that impairs brain function. Engaging in activities such as reading, learning a new language, solving puzzles, and playing musical instruments can help boost cognitive reserve and maintain mental agility.

Interact with others

While brain-training games may not have broad benefits beyond the specific tasks they target, socializing with peers has been found to be a potent brain-training activity. Social isolation is considered a major risk factor for dementia, emphasizing the importance of engaging in lively conversations, joining clubs, or volunteering to keep your brain active and healthy.

Stay physically active

Physical activity not only benefits cardiovascular health but also contributes to better brain function and reduced cognitive decline. Incorporating exercises like running, swimming, or even gardening into your routine can help maintain cognitive abilities and lower the risk of dementia.

Eat a healthy diet

Avoiding excessive saturated fats and consuming plenty of fruits and vegetables can support brain health by eliminating harmful byproducts and providing essential nutrients. The Mediterranean diet, rich in fruits, vegetables, legumes, nuts, and olive oil, has been recommended for its brain-protective properties.

Stay curious

Personality traits like openness to experience are linked to better brain health and lower dementia risk. Activities that spark curiosity and awe can enhance cognitive abilities and mental flexibility. Incorporating habits like exploring new environments, trying new experiences, and enjoying cultural activities can promote brain health.

Think positively

Your mindset about aging can significantly impact your brain health. Maintaining a positive outlook, along with engaging in mentally stimulating activities and healthy habits, can contribute to long-lasting mental sharpness. Seeking out positive role models and adopting a proactive approach to brain health can help unlock your brain’s full potential.

Source: www.sciencefocus.com

Lack of sleep can age you prematurely

Prioritizing sleep can help you feel younger

Uwe Krejci/Getty Images

Being sleep deprived can make you feel several years older than you actually are.

how old someone feels, or subjective age; associated with a variety of physical and mental health outcomesespecially depression. “Age is more than just a perception,” he says Leonie Balter At Karolinska Institutet, Sweden. “We know that people who feel younger than their actual age are healthier and live longer.”

Considering the importance of sleep to our mental and physical health, Balter and John AxelsonAt Karolinska Institutet, we also decided to investigate whether it affects our subjective age.

They surveyed 429 people between the ages of 18 and 70 about how old they felt and how much sleep they had gotten in the past 30 days.

The researchers found that reporting sleep deprivation was associated with participants feeling older than their actual age, with consecutive days of sleep deprivation making participants feel older by an average of 0.23 years. was found to increase. In contrast, those who reported getting enough sleep over a 30-day period were, on average, 5.81 years younger than their chronological age.

In the second half of the study, the pair recruited an additional 186 people. These participants were asked to aim for 9 hours of sleep over two consecutive nights over a two-week period, which was recorded via a sleep log and sleep tracking wrist device. They were then told to limit their sleep to four hours for two consecutive nights.

After this period of sleep restriction, subjects reported feeling on average 4.44 years older than their age, whereas under the 9-hour sleep condition they reported feeling 0.24 years younger. Compared to those who felt the least fatigued, those who felt the most fatigue reported feeling about 10 years older.

The findings show that sleep is an important indicator of how old some people feel, and that it is linked to our health, Balter says. “If you protect your sleep, you'll feel younger,” she says.

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Source: www.newscientist.com

Pompeii in England: Remarkably Preserved Bronze Age Village Offers Glimpse into Ancient Life

An intact ax with an intact handle was found under one of the burnt structures on the grounds of Mast Farm.

cambridge archaeological unit

The ruins of a Bronze Age settlement in eastern England have been beautifully preserved after being destroyed by fire 3000 years ago. Exploring the ruins provides an incredible snapshot of how the British lived at the time, from what people ate for breakfast to the tools they used to build their homes.

Archaeologists first discovered the ancient wooden pillars in 1999 at the Mast Farm quarry near the small town of Whittlesea. A subsequent small-scale study tried to figure out if there was anything interesting there, he said. chris wakefield at the University of York, UK. But it wasn’t until his 2015 that Wakefield and his colleagues conducted serious excavations at the site.

The research team discovered the structural remains of four large circular dwellings (usually wooden circular dwellings with conical thatched roofs) dating from 3,000 to 2,800 years ago. Tree stumps suggest that it was built on raised platforms connected by wooden walkways over a small river that flows through the area. Judging by the size of the waterway, there may have been about 10 roundhouses in the settlement, Wakefield said.

Tree-ring analysis of wood taken from the structure suggests that the settlement was destroyed a year after its construction, with the houses falling into the muddy waters below. Wakefield said the waterlogged, oxygen-depleted environment prevented the settlement from deteriorating, resulting in its unprecedented level of preservation. The charring of objects by fire also served as a protective layer against environmental decay. “Almost everything that was in these people’s homes at the time of the fire has been preserved and is still being discovered nearly 3,000 years later,” Wakefield said.

The way items fell into the mud provided clues as to the layout of each house. Stepping through the door, the kitchen area tended to be on the east side of the house, with the sleeping area to the northwest and the livestock pens to the southeast.

Chemical analysis of kitchen utensils such as pots, bowls, cups and jars suggests that the settlement’s prehistoric inhabitants probably ate porridge, cereals, honey and stews made from beef, mutton and fish. .

“This is the best evidence we have for understanding prehistoric diets and cooking methods,” he says. Rachel Pope At the University of Liverpool, UK. “This is the closest you will ever get to walking through the doorways of a 3,000-year-old roundhouse and finding out what life was like inside.”

Illustration depicting daily life at one of the mast farm structures

Judith Dobie/Historic England

A toolbox filled with axes, sickles, and razors was a staple in every household. “One of the most beautiful things one of my colleagues found was an amazing two-part axe,” Wakefield says. “What’s amazing about this particular design is that the ax head itself is inserted into an additional piece of wood that can be replaced.”

The clothes recovered at the scene had a lush, velvety feel and were made from the finest fibers produced in Europe at the time, Wakefield said. Decorative beads, which may have been used in necklaces, have also been found throughout the site, and likely came from elsewhere in Europe or the Middle East.

The settlement has been likened to the ancient Roman city of Pompeii, which was buried in ash after a volcanic eruption in 79 AD. “Archaeologists sometimes talk about Pompeii-like discoveries, moments where time stood still, and this is one of them. Burnt-out settlements offer evidence of the time just before and after the fire some 2,900 years ago. It gives us a detailed look into people’s lives in the months leading up to it.” michael parker pearson At University College London.

“Mast Farm is not a once-in-a-generation site. It is very likely that there will never be another site that tells more about Bronze Age Britain.” Richard Maggwick At Cardiff University, UK.

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  • archeology/
  • ancient humans

Source: www.newscientist.com

TikTok sensation Cat Janis passes away at the age of 31

Cat Janis, the singer who gained fame on TikTok for dedicating her final song to her son, has passed away from cancer, as announced by her family on Wednesday.


Her family announced The news was shared on her Instagram account: “This morning, from her childhood home, surrounded by her loving family, Katherine peacefully entered the light and love of her Heavenly Creator.

“We are forever grateful for the outpouring of love that Duchess Kate and our family have received over the past few months. Kat has seen her music go places she never expected. I am resting with the peace of mind that I will continue to provide for my son through music. None of this would have been possible without your support.”

Janice had sarcoma cancer, a rare type that affects bones and soft tissues. She passed away at the age of 31.

Janice documented her cancer journey on TikTok, revealing that she discovered a lump on her neck in November 2021, which later turned out to be cancer. Despite announcing she was cancer-free in July 2022, it returned in her lungs, leading her to hospice care last month.

Proceeds from Janice’s viral song were dedicated to her son after she learned about her impending death.

Her song “Dance You Outta My Head,” released on January 19th and dedicated to her youth, topped the TikTok Billboard Top 50 chart and made it into the Top 10 on Billboard’s Hot Dance/Electronic Songs chart. The song garnered over 12 million streams worldwide on Spotify.

“I transferred all the rights to my songs to my son so that I could leave him something. I don’t have much,” the singer wrote in a video Posted on TikTok on January 15th, urging fans to save this song for the future.

In her final TikTok video, Janice expressed her strength and mentioned feeling trapped due to her health, looking forward to dancing with God in heaven.


Source: www.theguardian.com

Study claims new diet that mimics fasting could reverse biological age

A new study led by the University of South Carolina Leonard Davis School of Gerontology suggests that fasting-mimetic dieting (FMD) cycles can significantly reduce disease risk factors and decrease human biological age. FMD was developed by Professor Walter Longo and his team, involving a five-day diet high in unsaturated fats and low in overall calories, protein, and carbohydrates. The diet mimics the effects of water-only fasting while providing necessary nutrients and making fasting more manageable for individuals.

During the five-day fasting period, participants were allowed to consume specified amounts of plant-based soups, energy bars, energy drinks, chip snacks, and tea and given supplements to ensure they didn’t miss out on important vitamins, minerals, and essential fatty acids.

Previous studies have shown the various health benefits of FMD, including promoting stem cell regeneration, reducing chemotherapy side effects, and decreasing signs of dementia in mice. The recent study focuses on the effects of FMD on human immune system aging, insulin resistance, liver fat, and biological age.

The research team analyzed two groups of men and women aged 18-70 who received three to four cycles of FMD per month. The results showed reductions in diabetes risk factors, reduced fat in the abdomen and liver, and rejuvenation of the immune system. Data analysis also demonstrated that FMD participants lost an average of 2.5 years in biological age.

Professor Longo hopes these findings will encourage more doctors to recommend FMD cycles to patients with elevated risk factors for disease and to the general public interested in improving their health and vitality. He suggested that healthy people between the ages of 20 and 70 should consider trying FMD two or three times a year, cautioning that there may be concerns when used in combination with certain diabetes medications.

About our experts:

Walter Longo is the Edna M. Jones Professor of Gerontology and Biological Sciences and Director of the Longevity Institute at the University of Southern California Leonard Davis School of Gerontology in Los Angeles.

Source: www.sciencefocus.com

Enormous Stone Age hunting structure uncovered in the Baltic Sea

A team of German archaeologists has discovered a gigantic Stone Age structure submerged at a depth of 21 meters in the Western Baltic Sea. This structure was probably built by hunter-gatherers over 10,000 years ago and was eventually sunk about 8,500 years ago. Since then, it has remained hidden under the sea, leading to pristine preservation that has inspired research into lifestyles and territorial development in the wider region.

An artist's reconstruction of the Brinker Wall in Mecklenburg Bay, Germany. Image credit: Michał Grabowski.

The massive Stone Age structure was discovered in Mecklenburg Bay, about 10 kilometers northwest of the German coast of Relic.

The stone wall is made up of 1,673 individual stones, typically less than 1 meter in height, arranged side by side over a distance of 971 meters in a way that refutes their natural origin through glacial movement or ice-intrusion ridges.

This wall, known as the Brinker Wall, was built by hunter-gatherers who roamed the area after humans left. viserian ice sheet.

Running adjacent to the sunken shoreline of a paleo-lake (or swamp), whose youngest stage dates to 9,143 years ago, the structure was probably used for hunting. Eurasian reindeer (Langifer Tarandus).

“At that time, the population of all of Scandinavia was probably less than 5,000,” said Dr. Marcel Bradmeler, a researcher at the University of Rostock.

“One of their main food sources was herds of reindeer, which moved seasonally across sparsely vegetated post-glacial landscapes.”

“This wall was probably used to guide reindeer into the bottleneck between the adjacent shore and the wall, or into the lake, allowing Stone Age hunters to kill reindeer more easily with their weapons. Ta.”

Form of a southwest to northeast oriented ridge with a blinker wall and adjacent mounds.Image credit: Geersen et al. everyone, doi: 10.1073/pnas.2312008121.

The Brinker Wall is one of the oldest recorded man-made hunting structures on Earth and one of the largest known Stone Age structures in Europe.

Dr Jacob Geersen, also from the University of Rostock, said: “Our research shows that the natural origin of the submarine stone walls or modern constructions associated with, for example, the laying of submarine cables or stone extraction is unlikely. ” he said. .

“The orderly arrangement of many small stones connecting large, immovable rocks opposes this.”

The researchers used modern geophysical methods to create detailed 3D models of the Brinker Wall and reconstruct the ancient landscape.

A team of scientific divers from the University of Rostock and the West Pomeranian Mecklenburg State Department of Culture and Monuments also visited the site once and inspected it.

The main purpose of the dive was to assess the nature of the stone wall and investigate possible archaeological remains on the surrounding seabed.

They concentrated in two places: the western edge of the structure and the large stone in the center where the blinker wall turns.

No artifacts or dateable organic material were found in the immediate vicinity of the two dive sites, but a small wood sample was recovered from Holocene deposits approximately 10 m south of the structure.

3D model of the section of blinker wall adjacent to the large boulder at the west end of the wall. The photo was taken by Philip Huy of the University of Rostock. The scale bar at the top right corner of the image is 50 cm. Image credit: Geersen other., doi: 10.1073/pnas.2312008121.

“A number of well-preserved Stone Age sites are known along the coast of Wismar Bay and Mecklenburg-West Pomerania, but these are located at much shallower depths, and most of them are Mesolithic and Neolithic. It dates from the Stone Age (7,000-2,500 BC),” said Dr. Jens Auer, a researcher at the Mecklenburg-West Pomeranian Department for the Preservation of Cultural Monuments.

“There is evidence that similar stone walls exist in other parts of Mecklenburg Bay. These will also be investigated systematically,” added Dr. Jens Schneider von Daimling, a researcher at the University of Kiel.

“Overall, this research could make a significant contribution to understanding the lives, organization, and hunting methods of early Stone Age hunter-gatherers.”

team's paper Published in this week's Proceedings of the National Academy of Sciences.

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Jacob Giesen other. 2024. Submerged Stone Age hunting architecture in the Western Baltic Sea. PNAS 121 (8): e2312008121; doi: 10.1073/pnas.2312008121

Source: www.sci.news

The impact of age, gender, and nationality on the interpretation of emojis

Emojis are often used in digital communications such as text messages and social media.

mixtape/shutterstock

Think twice before replying to a message with just emojis. Emojis may be interpreted differently by different people.

Previous research suggests that Men and women perceive facial expressions differently. ruth fillick Researchers from the University of Nottingham in the UK thought that a person's gender and other factors might also influence how they interpret emojis.

To find out more, they asked 253 Chinese and 270 British people (about an equal number of men and women) aged 18 to 84 to take part in an online survey.

Researchers selected 24 emojis to represent one of six emotions: happiness, disgust, fear, sadness, surprise, and anger based on the suggestions that appeared when you typed the word. There are four emojis for each emotion, representing different designs used by Apple, Windows, Android, and WeChat.

Each participant then assigned an emoji to the emotion they thought best matched.

Women were more likely than men to match emojis to the same emotions selected by researchers. The researchers say women may be better at recognizing facial expressions, perhaps because they make more eye contact.

Younger participants also matched emojis better than older participants, probably because they used them more frequently.

On the other hand, British participants agreed better with emojis than Chinese participants, although this may be because the latter group uses emojis differently. “For example, it has been suggested that: [people in China] According to the researchers, people rarely use the happy emoji to express happiness, but instead use it in negative connotations, such as sarcasm.

“When you send someone a message that includes emojis, you can't just assume that they see the emojis the same way you see them,” says Fillick.

Isabel Butet Researchers at the University of Ottawa in Canada say matching 24 emojis to six emotions is extremely restrictive. Nevertheless, “assigning emojis specific emotional labels is problematic when you don't know how they will be interpreted in various online communities,” she says. “For example, it would never have been considered to use eggplant as an allusion if that meaning had not developed in a particular community.”

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Source: www.newscientist.com

Iron Age people may have buried their beloved pets, such as dogs and horses along with them

Remains of dog and baby girl buried in Seminario Vescoville near Verona, Italy

Laffranchi et al. (CC-BY 4.0)

Late Iron Age people in northern Italy were sometimes buried with dogs and horses. Probably because they loved dogs and horses.

Archaeologists often suspect that the ancient worldwide custom of placing animals in human graves is associated with higher socio-economic status, beliefs about the afterlife, or certain family traditions. I was there. However, after thorough investigation, researchers say they are now beginning to suspect that such “community burials” may have simply been expressions of love for devoted non-human family members. Marco Mirella At the University of Bern, Switzerland.

He and his colleagues reexamined bones excavated from the 2,200-year-old Seminario Vescoville cemetery just east of Verona, Italy. There, the Cenomani lived in metal-making communities before and during the Roman conquest.

Most of the 161 graves discovered at the site contained only human remains, but 16 graves also contained whole or partial animal remains. Twelve of the items were pork or beef products, apparently food offerings to the deceased. Zita Laffranchialso at the University of Bern.

However, the remaining four were buried with dogs and/or horses, which were not used for food by the group. Among them were a middle-aged man with a small dog, a young man with part of a horse, a 9-month-old baby girl alongside the dog, and, most unexpectedly, a pony. She was a middle-aged woman. She had a dog’s head placed above her and a dog’s head placed above her head.

“At first, the excavators were surprised to find human legs under the horses, and their first idea was that there were horsemen here, there were warriors.” LaFranch says. However, the woman was buried unarmed, suggesting that her association with the 1.3 meter tall pony had nothing to do with the war.

The researchers found no particular trends in the age of the people buried with the animals, and DNA analysis suggested they were not genetically related to each other. Chemical analysis of these corpses Dietary differences related to socio-economic status were also not revealed compared to human-only graves.

The findings suggest that ancient people may have felt a strong connection to their animals and therefore chose to bury their loved ones with them, the researchers said. “And why not?” says Mirella. “You can never rule that out.”

Another explanation, the researchers added, is that the animals may have had symbolic meaning for the afterlife. For example, in Gallo-Roman religion, The Celtic horse goddess Epona was believed to protect individuals after death..And what about Gallo Romance? Sometimes dogs are associated with the afterlife.. In fact, burying dogs with infants may even have had a purpose: Protecting parents from future baby loss.

Still, the animals in the graves appear to have benefited from careful human care, rather than as disposable livestock. The dog in particular appears to have been fed human food and is showing signs of wound treatment and healing.

So it’s also possible that people were buried with animals for both symbolic and affectionate reasons, Mirella said.

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Source: www.newscientist.com

Study finds that low carbon dioxide emissions from volcanoes may have caused the Sturtian ‘Snowball Earth’ ice age.

of Sturtian “Snowball Earth” Ice Age (717 million to 661 million years ago) is considered the most extreme icehouse period in Earth’s history. In a new study, geologists from the University of Sydney and the University of Adelaide used plate tectonics modeling to identify the most likely cause of the Staats Ice Age.


Artist’s impression of “Snowball Earth”. Image credit: Oleg Kuznetsov, http://3depix.com / CC BY-SA 4.0.

“Imagine if the Earth almost completely froze over, which is exactly what happened about 700 million years ago,” said lead author Dr. Adriana Dutkiewicz, a researcher at the University of Sydney. .

“The Earth was covered in ice from the poles to the equator, and temperatures plummeted. But what caused this to happen is an open question.”

“We think we have now solved the mystery. Historically, volcanic carbon dioxide emissions have been low, driven by the weathering of large volcanic rock mountains in what is now Canada. It’s a process that absorbs carbon dioxide.”

Named after Charles Sturt, a 19th-century European colonial explorer of central Australia, the Sturtsian Ice Age spanned 717 million to 660 million years, long before dinosaurs and complex plants existed on land. It continued until ten thousand years ago.

“There are many possible causes for the trigger and end of this extreme ice age, but the most mysterious one is why it lasted 57 million years. It’s hard for humans to imagine,” Dr. Dutkiewicz said.

Dr. Dutkiewicz and his colleagues used a plate tectonics model that simultaneously shows the evolution of continents and ocean basins after the breakup of the ancient supercontinent Rodina.

They connected it to a computer model that calculates the outgassing of carbon dioxide from submarine volcanoes along mid-ocean ridges, where plates diverge and new oceanic crust is born.

They soon realized that the beginning of the Starch Ice Age correlated precisely with the lowest ever levels of volcanic carbon dioxide emissions.

Additionally, carbon dioxide flux remained relatively low throughout the ice age.

“At that time, there were no multicellular animals or land plants on Earth,” Dr. Dutkiewicz said.

“Greenhouse gas concentrations in the atmosphere were determined almost entirely by carbon dioxide emitted by volcanoes and by the weathering processes of silicate rocks that consume carbon dioxide.”

“At that time, geology ruled the climate,” said co-author Professor Dietmar Müller, a researcher at the University of Sydney.

“We think the Staats Ice Age began with a double whammy: plate tectonics realigned to minimize volcanic degassing, while at the same time Canada’s continental volcanic belt began to erode, removing carbon dioxide from the atmosphere. Consumed.”

“As a result, atmospheric carbon dioxide has fallen to levels that could begin an ice age. This is estimated to be less than 200 parts per million, less than half of today’s levels.”

The team’s current research raises interesting questions about the long-term future of the planet.

Recent theories suggest that over the next 250 million years, Earth will evolve toward Pangea Ultima, a supercontinent hot enough to wipe out mammals.

However, the Earth is currently on a trajectory where volcanic carbon dioxide emissions decrease as continental collisions increase and plate velocities decrease.

So perhaps Pangea Ultima will snowball again.

“Whatever the future holds, it is important to remember that geological climate changes of the type studied here occur very slowly,” Dr. Dutkiewicz said.

“According to NASA, human-induced climate change is occurring 10 times faster than ever before.”

of study appear in the diary geology.

_____

Adriana Dutkiewicz other. The period of the Sturtian “Snowball Earth” ice age is associated with unusually low gas emissions at mid-ocean ridges. geology, published online on February 7, 2024. doi: 10.1130/G51669.1

Source: www.sci.news

The Age of Urban Warfare: Tekken and his enemies dominate the world | Games

FOne evening, my housemates and I were coming back from the pub with a few hangers on. The classic 1990s TV show “The Word” ends with a raucous live performance by the up-and-coming grunge band, and now it's time to play video games.

Online multiplayer didn't exist during the original PlayStation or Sega Saturn decade. If you wanted to play against a human, you had to play against a friend in your living room or someone else you found in the pub when it closed. It had to be accessible, competitive, and something that two or four people could play at the same time. We had to keep the rounds short because everyone wanted to play. That always means one of his two options: a soccer sim or a fighting game.

In the mid-1990s, fighting games were the most popular genre on consoles, along with driving sims. At the time, major hardware manufacturers and arcade companies were keen to corner the emerging market of real-time 3D games, games with polygonal characters and environments that replaced the essentially flat 2D world of sprites and backgrounds. did. These games were the future. And the fighting genre was the perfect showcase. These games featured large character models that benefited from 3D graphics and smooth animation, but also featured primarily static arenas, so they didn't need to fill up your disk or system. Memory that stores a lot of environmental data. He also has a huge fan base thanks to his 1980s classics like Yie Ar Kung-Fu and Karate Champ, as well as early 1990s hits Street Fighter 2 and Mortal Kombat. Did. It fit perfectly.

1995 saw the release of Tekken on the PlayStation and Virtua Fighter on the Saturn. There was also the beautiful battle arena Toshinden by Tamsoft, which featured a feast of then-cutting-edge texture-mapped visuals, bizarre characters, and special moves. When Tekken 2 was released in August 1995, it sold over 5 million copies and cemented the genre's importance with its cinematic sequences and cool combatants. A year later, the N64 entered the fray with Killer Instinct Gold, Sega gave us Fighting Vipers and Last Bronx, and Capcom diversified the genre with Street Fighter Alpha 2, the horror-themed Darkstalkers: The Night Warriors, and 3D weapon-based I was desperately working on it. The sci-fi battle Star Gladiator and the crossover classic X-Men vs. Street Fighter. Squaresoft, the creator of Final Fantasy, also took on the bizarre futuristic fighter Tubal No 1, which became a bestseller in Japan, probably because it came with a playable demo disc for Final Fantasy VII. .

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Virtua Fighter 4 Evolution. Photo: Sega

Fighting games never went away. Even as people began to flock online for first-person shooters like Call of Duty, or abandoned social play altogether for new narrative adventure titles (Tomb Raiders, Resident Evil, Grand Theft Auto). Regardless, Tekken, Street Fighter, Soul Calibur, Guilty Gear and a few other heavy hitters have held on, supported by a fiercely competitive community. It's great to see renewed interest in it through the excellent Street Fighter 6, the ridiculous Mortal Kombat 1, and the recent Tekken 8. I hope this ignites a passion for the old titles, the ones you used to play from 11:30pm to 5am on Friday nights. Once the Word is finished. Honestly, every Street Fighter game is worth playing. Tekken 3 remains a benchmark classic. Virtua Fighter 4 Evolution is beautiful and complex. He then ventured into the cult world of SNK's greats (Art of Fighting, Fatal Fury, etc.) and descended the rabbit hole of his Arc System works to the frankly insane Guilty. You can also dive into the world of Gear.

The colors, the sounds, the characters, the combat…the praise you get when you pull off a super move and throw your fellow characters into space. The camaraderie of the arena. Log on to the Internet and raid his GameFaq site for a list of fan-created character moves and combos. Give your friend a boring third-party controller to play with while investing in his first fighting stick. The 1990s were his decade, the furnace of modern industry, as the game grew, diversified, brought in new people and spread its tentacles into wider culture. And for a few intense, glorious years, fighting games were at the absolute forefront.

Source: www.theguardian.com

Researchers can now estimate your biological age based on a snapshot of your body

It is now possible to measure a person’s biological age, which refers to the wear and tear of the body’s cells, as opposed to the chronological age based on the number of years lived. Chinese scientists have developed a new method to predict biological age using artificial intelligence to analyze 3D images of the face, tongue, and retina.

This approach provides a way to estimate biological age more accurately than previous methods that primarily relied on DNA or blood tests and brain scans. By combining images of the face, tongue, and retina, scientists have created a model that can accurately predict biological age. This allows for easier, more accessible, and less invasive methods to estimate a person’s biological age compared to traditional tests.

Research from China’s Macau University of Science and Technology and Shanghai Jiao Tong University involved testing this model on healthy individuals and those with chronic diseases. The results showed that the biological age of individuals with chronic diseases was significantly higher than their chronological age compared to healthy individuals, indicating the potential impact of chronic diseases on aging.

Furthermore, this new method could also be used to assess the effectiveness of anti-aging treatments, such as diet, exercise, and longevity drugs. Dr. Andrew Steele, a longevity expert, highlighted the potential for using photos to evaluate the efficacy of anti-aging strategies and speed up clinical trials in the future.

About our experts

Dr. Andrew Steele is a scientist, author, and presenter, known for his work in the field of aging. He is the author of Ageless: The new science of growing older without getting older. After earning his doctorate in physics, Steele transitioned into biology, using computers to decipher human DNA at the Francis Crick Institute in London.

read more:

Source: www.sciencefocus.com

The surprising evolutionary advantage of aging: Why do we age?

Researchers used computer models to investigate the evolutionary role of aging. They challenge the notion that aging has no positive effects and suggest that aging may promote evolution in a changing environment, thereby benefiting subsequent generations. I am. Their findings indicate that aging may be an advantageous trait selected by natural evolution. Credit: SciTechDaily.com

The mysteries of aging have fascinated people for thousands of years. Because aging is usually associated with a gradual decline in most bodily functions, many people are willing to do anything to stop or reverse this process. Aging is a natural part of life, but biologists understand surprisingly little about the evolutionary emergence of this process. It’s not clear whether aging is inevitable. That’s because there are some organisms that never seem to age at all, and there is also a phenomenon known as negative aging or rejuvenation. In some turtles, vital functions improve with age.

Studying the evolutionary role of aging

Researchers at the Institute for Evolution, led by scholar Airs Zatmary, have sought to debunk previously proposed but unproven theories of aging. This theory suggests that, under the right circumstances, evolution can encourage the proliferation of genes that control aging.

To test their hypothesis, the researchers used a computer model they developed. This model is an algorithm that allows scientists to simulate long-term processes in populations of organisms and genes in a controlled environment. Essentially, such models allow you to run evolutionary scenarios and get results in hours instead of millions of years. Modern evolutionary research is unthinkable without computer modeling.

Exploring the purpose of aging

The basic research question was simple. The question was, “Is there any meaning to aging?” Does it serve some evolutionary function or is it truly a bitter and deadly byproduct of life? “If there is selection for aging, then aging may have an evolutionary function. Our study aimed to reveal this selection,” he says Eörs Szathmáry. “According to the classical explanation, aging occurs in a population even without selection. It is because individuals die sooner or later without aging (as a result of disease or accidents), This creates an opportunity for genes to accumulate that have a negative effect on older individuals (thus causing aging), meaning that aging is only a side effect of evolution. It means that there is no adaptive function.”

Challenging common sense

During the last century, several evolutionary theories have been formulated to explain inevitable aging without active functions using different biological mechanisms. Although some scientists accepted this assumption as fact, the discovery of organisms that do not age led more and more researchers to question the inevitability of aging and to suggest that perhaps aging has benefits as well. I suggested that it might be.

“The evolutionary biology community has accepted that classical non-adaptive theories of aging cannot explain all aging patterns in nature, meaning that the explanation of aging has once again become an open question. “I mean,” Zatomary said. “Alternative adaptation theories provide a solution to this problem by suggesting positive effects of aging. For example, aging and death may be more advantageous for individuals in a changing environment. This is because doing so reduces competition that prevents the survival and reproduction of more fit offspring with a better genetic makeup.

However, this scenario is only true if the individual is surrounded primarily by relatives. Otherwise, during sexual reproduction, non-senescent individuals would “steal” better (better adapted to environmental changes) genes from aging population members, thus erasing significant senescence.

Aging as a catalyst for evolution

Hungarian biologists ran a model and found that aging can actually accelerate evolution. This is an advantage in a changing world. Faster adaptation allows us to find suitable traits faster, which supports the survival and spread of offspring genes. This means that aging can become a highly advantageous trait and be favored by natural selection.

Reference: András Siraj, Tamash Charan, Mauro Santos, Airs Zatmary, “Directional selection combined with kin selection favors the establishment of senescence”, October 23, 2023. BMC biology.
DOI: 10.1186/s12915-023-01716-w

Funding: National Agency for Research, Development and Innovation (Hungary), Bolyai János Research Fellowship of the Hungarian Academy of Sciences, New National Excellence Program of the Ministry of Culture and Innovation, Ministry of Science and Innovation, Autonomous Region of Catalonia 2021 Special Guest Scientist Volkswagen Foundation, Hungary Fellowship Program of the Academy of Sciences (Initiative “Leben?

Source: scitechdaily.com