Exploring the Enigma of Nuclear ‘Magic Numbers’: A Breakthrough Revealed

Understanding Nuclear Stability: Magic Numbers in Physics

Shutterstock/ktsdesign

A pivotal set of numbers has served as the foundation of nuclear physics research for decades, revealing how they stem from the quantum interplay of nuclear particles and forces.

Nearly 80 years ago, physicist Maria Goeppert Mayer discovered that atomic nuclei exhibit remarkable stability when they contain specific numbers of protons and neutrons, such as 50 or 82. Subsequent research has reinforced the existence of these “magic numbers,” which characterize the most stable and abundant elements in the universe.

Goeppert Mayer’s contemporaries introduced the concept that protons and neutrons occupy discrete energy levels or shells. While this shell model persists in explaining numerous nuclear physics experiments by treating each nucleus particle as independent, modern quantum theory contends that these particles engage in strong interactions.

Yao Jianming and researchers from Sun Yat-sen University in China have reconciled this discrepancy, revealing how magic numbers originate from these interactions.

According to Yao, the shell model does not derive intricate details of particle interactions. Instead, he and his team approached their calculations from first principles, elucidating how particles interact, cling together, and the energy required to separate them.

Yao likens the two models to images captured at differing resolutions: “Historically, researchers either modeled the system at low resolution or explored nuclear structure at high resolution. We applied contemporary methods to bridge these models.”

The team initiated their analysis with a high-resolution perspective, then deliberately blurred it at each calculation stage, observing how particle structures evolved.

The researchers noted that the symmetry of a particle’s quantum state shifts across a mathematical bridge. By graphing these state equations, they produced shapes showcasing various symmetries at different resolutions. This transformation led to a nuclear structure where nuclei are most stable when particles correspond to magic numbers.

Jean-Paul Ebelin from the French Alternative Energy and Atomic Energy Commission emphasizes that this study offers a theoretical exploration akin to a mathematical microscope, effectively mirroring experimental observations. “Nature reveals a different facet depending on the observational resolution,” Ebelin notes.

The identified symmetry alterations correlate with effects noted in Albert Einstein’s special theory of relativity, as Ebelin points out, enhancing our understanding of how magic numbers unify various elements of nuclear theory.

To date, researchers have validated their theoretical findings on a specific type of tin, known for its double magic property due to possessing 50 protons and 82 neutrons, along with several other nuclei. Looking ahead, Yao expresses intentions to extend their analysis to heavier and typically unstable nuclei, exploring how these are formed during supernova events and the collision of neutron stars.

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Source: www.newscientist.com

Exploring the Epic Saga of Ancient Humanity: The Century’s Best Idea Revealed

In the last 25 years, the field of human evolution has witnessed remarkable growth, showcased by a significant increase in discoveries. Archaeologists have unearthed more fossils, species, and artifacts from diverse locations, from the diminutive “hobbits” to enigmatic creatures inhabiting Indonesian islands. Notably, Homo naledi is known solely from a single deep cave in South Africa. Simultaneously, advanced analytical techniques have enhanced our understanding of these findings, revealing a treasure trove of information about our origins and extinct relatives.

This whirlwind of discoveries has yielded two major lessons. First, since 2000, our understanding of the human fossil record has been extended further back in time. Previously, the oldest known human fossil was 4.4 million-year-old Ardipithecus, but subsequent discoveries in 2000 and 2001 unearthed even older species: Ardipithecus, Orrorin tugenensis from 6 million years ago, and Sahelanthropus tchadensis from 7 million years ago. Additionally, the Orrorin lineage was tentatively identified in 2022, suggesting it is slightly more recent than O. tugenensis.

According to Clement Zanoli from the University of Bordeaux, the discovery of these early human fossils represents “one of the great revolutions” in our understanding of evolution.

The second major lesson has enriched the narrative of how our species emerged from earlier hominins. By 2000, genetic evidence established that all non-Africans descend from ancestors who lived in Africa around 60,000 years ago. This revelation indicated that modern humans evolved in Africa and subsequently migrated, replacing other hominid species.

However, by 2010, the sequencing of the first Neanderthal genome opened a new chapter, along with the DNA analysis of several other ancient humans. These studies revealed that our species interbred with Neanderthals, Denisovans, and possibly other groups, creating a complex tapestry of human ancestry.

Skeletal research has long suggested interbreeding as many fossils exhibit traits that defy clear species categorization, as noted by Sheila Athreya at Texas A&M University. In 2003, Eric Trinkaus and colleagues described a jawbone excavated from Peștera cu Oase, Romania, as a Human-Neanderthal hybrid, based on its morphology. Later genetic testing in 2015 confirmed that individuals from Oase had Neanderthal ancestry, tracing back 4 to 6 generations ago.

This evidence highlights that our species did not merely expand from Africa; rather, our population absorbed genetic contributions from Neanderthals and Denisovans along the way. Genetically, we are a mosaic, a fusion of countless years of diverse human lineages.

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Source: www.newscientist.com

Does Limiting Social Media Use Benefit Teens? New Evidence Revealed

Teens in social media trial

Teens in Trial to Limit Social Media Use: A Shift Towards Real-life Interaction

Daniel de la Hoz/Getty Images

A groundbreaking study is exploring the effects of reduced social media usage on teens’ mental health and well-being. While results are not expected until mid-2027, ongoing discussions suggest that some governments might institute bans on social media for teenagers before the outcomes are known.

The merit of such a ban is still up for debate in the courts. Despite limited evidence, Australia has introduced regulations for minors under 16, and the UK government is considering similar measures.

This trial prioritizes young people’s voices by involving them in the planning process. Historically, children and adolescents have been excluded from critical discussions concerning social media design and management.

“Involving kids is crucial,” states Pete Etchells from Bath Spa University, UK, who is not directly involved in the study.

“There is ample evidence pointing to the potential harms of social media on young users, some of which can be severe,” notes Amy Orben, co-leader of the trial, emphasizing the uncertainty regarding the broader impact of social media time.

To obtain clearer answers, large-scale studies are necessary. The IRL trial takes place in Bradford, England, aiming to recruit around 4,000 participants aged 12 to 15 across 10 schools. A bespoke app will be used to monitor social media engagement.

Half of the participants will face specific time limits on certain apps like TikTok, Instagram, and YouTube, with no restrictions on messaging apps like WhatsApp. “Total usage will be capped at one hour a day, with a curfew from 9 PM to 7 AM,” explains Dan Lewar from the Bradford Health Data Science Center, who co-leads the trial. This is significant, considering that the average social media usage for this age group is about three hours daily.

Importantly, participants will be randomized by grade level, allowing 8th graders to serve as the control group while 9th graders undergo restrictions. The aim is to create similar circumstances for both groups. “If a child’s social media is restricted, but their friends are active online post-curfew, they may feel excluded,” Orben explains.

Lewar emphasizes that the trial was designed collaboratively with teens. “They opposed a blanket ban,” he notes.

The comprehensive study will span six weeks around October, with preliminary results anticipated in mid-2027.

Orben emphasizes that this trial will yield more precise data on teenage social media habits through app monitoring rather than relying on self-reported information. The team will also gather data on anxiety, sleep quality, socializing, happiness, body image, school absenteeism, and experiences of bullying.

Etchells asserts the necessity of understanding whether restrictions or bans are beneficial or detrimental to youth. “The honest answer is we don’t know. That’s why research like this is critical.”

This initiative is welcomed due to the absence of high-quality studies in this area. A recent report from the UK Department for Science, Innovation, and Technology highlighted the need for quality causal evidence linking young people’s mental health to digital technology use, especially concerning social media, smartphones, and AI chatbots.

As stated by Margarita Panayiotou from the University of Manchester, engaging with youth is essential in social media research. Her findings show that teens often find ways to circumvent outright bans, making testing restrictions a more viable option. This approach may also be more ethical, as the harm caused by a ban is not yet understood.

“Teens view social media as a space for self-discovery,” says Panayiotou, highlighting concerns about platform distrust, feelings of loss of control, and unintentional overuse. They also report struggles with online judgment, body comparisons, and cyberbullying.

According to Etchells and Panayiotou, the primary challenge for governments is to compel tech companies to ensure safer social media environments for youth.

The Online Safety Act 2023 (OSA) mandates that technology firms like TikTok, Facebook, WhatsApp, and Instagram (owned by Meta), as well as Google (which owns YouTube), enhance user safety. “Effective enforcement of OSA could address many existing issues,” asserts Etchells.

Topics:

  • Mental Health/
  • Social Media

Source: www.newscientist.com

Ancient Hominin: Potential Overlap with Sulawesi’s Homo Sapiens Revealed

Leang Bulu Betu, a rock shelter located in the Maros Pankep karst region of Sulawesi, Indonesia, has become a pivotal site for paleoanthropological research. Scholars have uncovered one of the most thorough records of early human habitation in Wallasia, which serves as a critical junction between Asia and Australia. This groundbreaking discovery highlights the timeline of Homo sapiens, revealing their adaptation and existence tens of thousands of years ago, alongside ancient human species.



Leang Bulu Bettue in the Maros Pankep karst region of South Sulawesi. Image credit: Burhan et al., doi: 10.1371/journal.pone.0337993.

At Leang Bulu Betu, Basran Burhan and his team from Griffith University have uncovered a wealth of artifacts, stone tools, and animal remains dating back to the Pleistocene era.

Burhan stated, “The depth and continuity of cultural sequences at Leang Bulu Bettue now position this cave as a key site for exploring potential overlaps between different hominin lineages.”

The initial stages of occupation date back approximately 208,000 years and are defined by simple stone tools and evidence of animal slaughter.

Among the significant artifacts are strong stone tools referred to as picks, indicating that archaic human cultural practices predated the arrival of modern humans.

Professor Adam Blum from Griffith University remarked, “These findings suggest an archaic human cultural tradition that persisted into the late Pleistocene in Sulawesi.”

Archaeological evidence indicates a notable transformation around 40,000 years ago, showing advancements in stone technology and the emergence of symbolic behavior, which are closely associated with Homo sapiens.

Burhan noted, “This later phase was marked by a unique technological toolkit and the earliest evidence of artistic expression and symbolic behavior on the island.”

Sulawesi plays a critical role in the narrative of human evolution due to its geographic location between the continents of Asia and Sahul, which once linked Australia and New Guinea, making it a vital conduit for early human migration.

Despite this significance, the area’s dense forests and complex terrains have resulted in a surprisingly minimal archaeological record to date.

This new research raises intriguing possibilities about the coexistence of Homo sapiens with their extinct relatives on Sulawesi.

The researchers propose that Leang Bulu Bettue could provide the first tangible archaeological evidence of this chronological overlap and potential interactions.

The later layers reveal signs of symbolic and cultural behaviors, echoing discoveries at other ancient Sulawesi sites known for rock art and advanced tools.

These advancements were initially thought to be exclusive to Homo sapiens, suggesting that the arrival of modern humans brought not only technological innovations but also new cognitive and cultural practices.

Professor Blum expressed, “Archaeological research on Sulawesi is particularly compelling because, unlike Australia, which shows no evidence of human habitation prior to our species’ arrival, Sulawesi was inhabited by various hominins for a million years before our emergence.”

“If we dig deep enough, we may find evidence of interactions between these different human species.”

Burhan stated, “There may be several more meters of archaeological layers beneath the deepest level we have explored at Leang Bulu Bettue.”

“Further investigations at this site could yield groundbreaking discoveries that reshape our understanding of early human history on Sulawesi and beyond.”

The findings were published in December 2025 in the journal PLoS ONE.

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B. Burhan et al. 2025. A near-continuous archaeological record of Pleistocene human occupation discovered at Leang Bulu Bettue, Sulawesi, Indonesia. PLoS ONE 20 (12): e0337993; doi: 10.1371/journal.pone.0337993

Source: www.sci.news

Centuries-Old Greenland Sharks Thrive Despite Heart Disease: Secrets to Their Longevity Revealed

Greenland shark

Greenland Sharks’ Longevity: A Closer Look at Their Heart Health

Credit: Doug Perrine/naturepl.com

Greenland sharks are believed to live between 250 to 500 years. Remarkably, even at 150 years old, they show signs of severe age-related heart disease.

Interestingly, some body parts like their eyes seem resilient to aging and cancer, suggesting that not all organs in this ocean predator are equally affected by age. Despite this resilience, research has shown that Greenland sharks (Somniosus microcephalus) do have significant heart health issues, yet they show no obvious functional decline or reduced lifespan.

Alessandro Cellerino and his team at the École Normale Supérieure in Pisa, Italy, conducted a study on six Greenland sharks (four females and two males), each exceeding 3 meters in length, and found their results to be “truly surprising.”

The researchers estimate that all six specimens were between 100 and 150 years old. They employed various advanced microscopic techniques, including high-resolution fluorescence and electron microscopy, to investigate the animals’ heart tissues.

“The hearts of Greenland sharks exhibited significant fibrotic changes and an abundance of aging markers such as lipofuscin and nitrotyrosine,” stated Cellerino.

In humans, elevated fibrosis levels in heart tissues typically signal age-related heart problems and potential heart failure.

Nevertheless, Cellerino noted that the substantial accumulation of lipofuscin, associated with mitochondrial impairment, does not appear detrimental and “does not adversely affect the lifespan of Greenland sharks.”

The high levels of nitrotyrosine, another marker associated with heart inflammation and oxidative stress, suggest that Greenland sharks may have developed a unique evolutionary strategy for enduring chronic oxidative damage, as opposed to merely attempting to avoid it.

“Initially, I thought what I observed under the microscope was a technical artifact or an error in the experiment,” he remarked.

To compare, the researchers also examined another deep-sea fish, the velvet-bellied lantern shark (Etmopterus spinax), along with the turquoise killifish (Nosobranchius furzeri), a species noted for its fleeting lifespan of mere months, residing in seasonal pools across the African savannah.

Elena Chiavatti mentioned that while the Greenland shark’s heart is highly fibrotic, the other species showed no signs of such conditions, as indicated in the Scuola Normale Superiore paper.

“The accumulation of nitrotyrosine is significant in Greenland sharks, whereas lantern sharks show no accumulation,” Chiavatti commented.

Despite their brief lifespans, killifish share similar nitrotyrosine aging markers with Greenland sharks, she added.

Cellerino emphasized that Greenland sharks exhibit extraordinary resilience to aging, particularly in their hearts. “The existence of organisms like Greenland sharks that endure aging without any noticeable heart decline is remarkable,” he noted. “These findings underscore the exceptional heart resilience of Greenland sharks and suggest potential insights into healthy aging.”

João Pedro Magalhães from the University of Birmingham highlighted that the study underscores our limited understanding of the molecular and cellular aging mechanisms, including which changes are detrimental and which are advantageous.

Furthermore, Magalhães urged for a broader variety of animals in aging and lifespan research. “Most scientists, including myself, primarily use short-lived species like earthworms, mice, and rats, but remarkable long-lived species such as Greenland sharks and bowhead whales could hold the keys to longevity,” he urged.

Source: www.newscientist.com

Discovering the Truth: Are Psychopaths Born or Made? New Insights Revealed

Is Psychopathy Inherited or Acquired? This question is more complex than it seems. For years, psychopathy was deemed a mysterious condition, and to some extent, it continues to mystify.

Many mental, neurological, and personality disorders instill fear in people. This fear often stems from ignorance and misconceptions.

Psychopathy, a type of personality disorder, elicits strong negative reactions, primarily due to its associations with emotional insensitivity, deviant behaviors, and criminality.

While only about 1% of the general population shows signs of psychopathy, this figure jumps to 25% within the prison community.

What exactly triggers psychopathy? Are individuals born psychopaths, or are they shaped by adverse experiences? This touches on the age-old debate of nature versus nurture.

Despite advancements in science, the concept of personality remains challenging to define, making discussions around individual differences equally complex.

This complexity extends to psychopathy, as illustrated in Jon Ronson’s book The Psychopath Test, which highlights the challenges in reliably diagnosing psychopathy.

Despite these challenges, most would agree that psychopathy is a genuine psychological condition, albeit difficult to identify accurately. Recent research has shed light on this intricate issue.

Utilizing brain imaging methods like fMRI (functional magnetic resonance imaging), scientists have discovered that psychopathy correlates with distinct brain structure differences.

Studies show that psychopathy is linked to anatomical differences in key brain regions, including the prefrontal cortex, posterior cingulate cortex, and temporal lobe.

If psychopathy is innate, it raises profound questions about the evolutionary purpose of such traits. – Image credit: Getty

These brain regions have diverse functions, but their specific combination significantly impacts emotional processing. The structural differences may impair the brain’s ability to recognize, encode, and interpret emotional information.

As emotions play a crucial role in human cognition, a deficiency in emotional understanding might contribute to hallmark traits of psychopathy, including a pronounced lack of empathy and an overreliance on rational thought.

Determining why certain individuals possess specific brain features remains a challenge. Genetic factors appear to be involved, as indicated by research studies.

While a person’s environment and experiences may exacerbate psychopathic traits, it is uncertain if such factors can consistently alter both brain structure and genetics.

Overall, evidence leans toward the idea that psychopathy is more likely innate than acquired.

However, whether such a mental disorder manifests is a different question altogether.


This article answers the query by Elliott Owens of St. Albans: “Is psychopathy innate or acquired?”

For inquiries, please reach out via: questions@sciencefocus.com or message us on Facebook, Twitter, or Instagram (please include your name and location).

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Skeleton of Duke Assassinated in 1272 Revealed to Bear Brutal Scars

The skull has now been identified as Béla of Macsó

Borbéry Noemi/Tamas Hajdu et al. 2025

Over 700 years ago, a Hungarian duke was brutally murdered in a frontal assault at a monastery. Recent studies of ancient human remains uncovered in Budapest have confirmed their identity as the duke, unveiling shocking insights into his assassination.

“The injuries sustained were far more severe than what would typically be required to kill someone,” remarked Martin Trautmann from the University of Helsinki, Finland.

During a 1915 archaeological excavation at a Dominican monastery on Margaret Island in the mid-Danube River in Budapest, the body of a man was discovered in fragments on the monastery floor. Researchers suspected the remains belonged to 29-year-old Béla of Macsó, grandson of King Béla IV, the monastery’s founder.

Records from 13th-century Austria indicate that Béla was assassinated on the island in November 1272 due to a dispute over the Hungarian throne. The bones exhibited multiple signs of trauma, although earlier scientists lacked the capabilities to confirm their initial theories.

The skeleton appeared to be lost during World War II, as noted by Tamas Hajdu, but was rediscovered at Eötvös Lorand University in Hungary in a wooden box at the Hungarian Museum of Natural History in 2018. This rediscovery has spurred investigations utilizing the latest techniques, including a facial reconstruction conducted last year.

Hajdu reported that the skeleton bore nine wounds on the head and face, along with 17 additional wounds across the rest of the body, all inflicted around the time of death. To understand the nature of the assault, Trautman and his team replicated the same injuries on a model skeleton and examined various scenarios. “We analyzed it like a frame-by-frame motion picture, observing injury after injury,” he explained.

Based on the scars, Trautman concluded that two or three assailants attacked the duke from both the front and sides, and the duke attempted to defend himself by blocking the blows with his arms. “They targeted his flanks, leaving him with little chance to escape.”

Eventually, he fell and sustained a skull fracture but continued to fight with his left leg while lying on his side until a stab to his spine ceased his struggle. The attackers then inflicted multiple strikes to his head and face.

While these injuries could have been lethal, it’s also possible he succumbed to excessive bleeding. “There was significant blood loss,” noted Trautman.

Radiocarbon dating confirmed that the remains dated back to the mid-13th century. Plaque analysis indicated a rich diet, including cooked wheat semolina and baked wheat bread.

DNA analysis revealed he was a fourth-generation descendant of King Béla III of Hungary and an eighth-generation relative of Dmitry Alexandrovich, a 13th-century Russian prince, aligning with historical records of the duke’s lineage.

Further genetic studies indicated he had Eastern Mediterranean ancestry on his mother’s side and Scandinavian heritage via his father, consistent with known information on the duke’s ancestry, suggesting he likely possessed dark skin, curly dark hair, and light brown eyes.

This study illuminates a historically significant event with scant details and limited understanding, according to Tamas Kadar, an independent medieval historian in Budapest. Without eyewitness accounts, the Austrian texts primarily record that the duke “met a grisly end on an island near Buda,” with accounts claiming his limbs were “chopped off” and collected by a sister and aunt.

Recent scientific evidence suggests a passionate motive behind the murder, Kadar emphasizes. Biography of Béla of Macsó. “The mutilation of his body, and possibly further disfigurement post-mortem, illustrates profound animosity and hostility,” Kadar asserts. “The prime goal was his swift and certain death.”

Historic Herculaneum – discover Vesuvius, Pompeii and ancient Naples

Embark on a captivating journey through the ruins of Mount Vesuvius, Pompeii, and Herculaneum, where history and archaeology merge.

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Source: www.newscientist.com

The Pioneering Map of Mammalian Brain Activity Might Have Revealed Intuition

Map of mouse brain showing 75,000 neurons

Dan Berman, International Brain Research Institute

The initial comprehensive activity map of the mammalian brain has unveiled groundbreaking revelations regarding decision-making processes.

For many years, neuroscientists aspired to capture neuronal activity throughout the brain at an individual level. However, challenges persist, including the limitations on the number of neurons an electrode can record, the number of electrodes deployable in a single brain, and the number of animals that a solitary lab can study.

To address these hurdles, a collaboration among 12 laboratories is underway, with each conducting identical experiments and recording duplicates to ensure consistency in collected data. This joint effort, tracking the activity of over 650,000 neurons, has resulted in the first comprehensive brain activity map related to complex behaviors.

“This research exemplifies a novel approach to addressing intricate inquiries in contemporary neuroscience,” stated Benedetto de Martino of University College London, who was not a part of this study. “Similar to CERN, which unites physicists to tackle profound issues in particle physics, this project will bring together global laboratories to confront challenges too expansive for individual teams.”

In each facility, mice were trained to maneuver a small LEGO steering wheel to direct a striped target towards the center of the display. The target was easily distinguishable when the stripes contrasted sharply. As contrast dwindled, the target nearly vanished, compelling the mice to rely on prior knowledge to respond accurately for a reward.

Bias was factored into the experiment, impacting the mice’s expectations about the target’s location. For instance, it could appear on either side of the screen. When the bias was inverted, the mice adjusted their expectations accordingly.

The resulting activity map indicates that decision-related processes are dispersed throughout the brain, rather than localized in one specific area. “Many assertions claimed, ‘this region is responsible for this function.’ However, our findings reveal that decision-making involves numerous regions collaborating through a consensus,” remarked team member Alexandre Pouget from the University of Geneva, Switzerland.

Furthermore, the findings support earlier research indicating that decision-related signals form long before an action is executed. Pouget noted that even prior to the commencement of individual experiments, signals linked to forthcoming decisions are evident. These signals accumulate when the target is presented, prompting the mice to move the wheels until a threshold is reached.

The second study reveals that beliefs regarding the target’s position are encoded very early in the brain’s activity. Researchers discovered that whether the signal emerged from the eye or journeyed to the thalamus, the brain’s relay center, advanced expectations regarding the target’s left or right positioning were already established.

This suggests that from the moment sensory information is processed by our brains, it is inherently influenced by knowledge, altering the conscious decision-making process unconsciously, according to Pouget. “While speculative, this may align with what we interpret as intuition,” he added.

Interestingly, the encoding not only captures recent sensory experiences but also seems to document the recent history of choices made. Lawrence Hunt from Oxford University pointed out, “This indicates that our actions and subjective experiences shape our perceptions, rather than the true objective reality.”

Does this imply our decisions are predestined? “The brain and its environment operate as a deterministic system. People often resist this idea, but it is accurate,” Pouget stated. “This means one can predict, to an extent, what actions will be taken before a decision is made. Nevertheless, when new information arises, expectations must be recalibrated, remaining unaware of how the surrounding world will evolve,” he explained.

Looking ahead, researchers are optimistic that the findings and collaborative methodologies will enhance the understanding of conditions like autism. A mouse model of autism suggests these animals struggle to update previous expectations with new information, according to Pouget, which resonates with our behaviors and perceptions.

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Source: www.newscientist.com

How Ancient Mass Extinctions Revealed Earth’s Evolution into a Super Greenhouse

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Current forest die-offs due to global warming resemble those from the Permian and Triassic extinction events.

Ina Fassbender/AFP via Getty Images

Following a dramatic increase in carbon dioxide levels 252 million years ago, the death of forests resulted in enduring climate alterations, with the greenhouse effect persisting for millions of years.

Researchers striving to comprehend this phenomenon, which triggered the largest mass extinction in Earth’s history, caution that ongoing greenhouse gas emissions may lead to similar outcomes.

The extinction events of the Permian and Triassic are believed to have been triggered by extensive volcanic activity in what is now Siberia, elevating atmospheric CO2 concentrations.

The planet’s surface temperature soared by as much as 10°C, with average temperatures in the equatorial regions climbing to 34°C (93°F)—a rise of 8°C above the current average.

These extreme conditions persisted for roughly 5 million years, causing over 80% of marine species and upwards of 70% of terrestrial vertebrate families to become extinct, according to some estimates.

Although some scientists have recently posited that these mass extinction events may have limited effects on terrestrial ecosystems, Andrew Meldis from the University of Adelaide expresses confidence that life was nearly extinguished 252 million years ago.

“Small pockets of life might survive mass extinctions in isolated enclaves, but many areas within the Permian-Triassic fossil record reveal a complete ecosystem collapse,” notes Meldis.

He and his team scrutinized the fossil record to investigate why the Super Greenhouse event, which drives mass extinction, lasted five million years—far longer than the 100,000 years predicted by climate models.

The findings revealed that vast expanses of forests, originally with canopies of around 50 meters, were supplanted by resilient underground flora, typically ranging from 5 cm to 2 meters in height. Additionally, peat marshes, significant carbon storage ecosystems, vanished from tropical areas.

Employing computer models of Earth’s climatic and geochemical systems, researchers indicated that the depletion of these ecosystems contributes to elevated CO2 levels persisting for millions of years. This predominantly occurs because vegetation plays a crucial role in weathering, the mechanism that extracts carbon from the atmosphere and sequesters it in rocks and soil over extensive timescales.

With atmospheric CO2 levels rising rapidly, the parallels to the present are striking, asserts Meldis. As temperatures escalate, tropical and subtropical forests may find it increasingly challenging to adapt, potentially surpassing thresholds where vegetation ceases to maintain climate equilibrium.

Meldis explains that simply restoring former ecosystems will not lead to a “ping-pong effect.” He emphasizes that the atmosphere cannot be swiftly rejuvenated after the loss of the equatorial forest.

“You’re not transitioning from an ice house to a greenhouse and then back; the Earth will find a new equilibrium, which may differ significantly from prior states,” he elaborates.

Catlin Maisner, a researcher at the University of New South Wales—who was not involved in the study—describes reconstructing these events as analogous to “trying to assemble a jigsaw puzzle with many missing pieces,” yet acknowledges the team’s arguments as “plausible.”

However, she notes considerable uncertainty regarding oceanic processes during this period. “The ocean harbors far more carbon than land and atmosphere combined, and we still lack a comprehensive understanding of how marine biology, chemistry, and physical circulation were affected during that event,” cautions Meissner.

Topics:

  • Climate change/
  • Paleontology

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Source: www.newscientist.com

First Evidence of Gladiator Battles with Lions revealed through Skeleton Bite Marks

In Roman arenas, gladiators fought lions and other wildlife. Despite the tales of epic battles found in ancient texts, sculptures, mosaics, and portrayed in modern media, physical evidence of gladiators with animal-inflicted wounds has never been discovered by archaeologists.

Recently, skeletal remains from Roman settlements in the UK provided the first direct evidence of gladiators who were injured by lions.

The discovery was made during excavations in York, where a couple was planning to renovate their garden. The cemetery found at the site halted construction plans and revealed a rich Roman archaeological history in the region.

Tim Thompson, an anthropologist from Maynooth University and author of a paper published in the journal PLOS One, highlighted the significance of this discovery in shedding light on ancient Roman practices.

The site in York contained the remains of over 80 individuals, mostly young men with signs of trauma on their bodies. The demographics, injuries, and burial practices suggest that these individuals were gladiators who fought in the area nearly 1,800 years ago.

One particular skeleton, identified as 6DT19, displayed a unique wound on its hip bone that resembled bite marks from a large animal, possibly a lion.

Further analysis indicated that the injuries on the skeletons could indeed be bite marks from large animals like lions. This finding challenged previous beliefs about the absence of physical evidence of gladiators fighting animals.

Dr. Thompson and his team collaborated with British zoos to study animal bite marks and compare them to the skeletal injuries found on the ancient remains.

Through meticulous analysis and comparison, they concluded that the injuries on the gladiators matched those inflicted by lions. While the bite on 6DT19 likely did not cause death, it provided valuable insights into the practices and culture of the Roman Empire.

This discovery not only sheds light on individual lives from the past but also reveals the extent of Roman influence and entertainment involving gladiator battles with animals.

Dr. Marklein, an anthropologist from the University of Louisville, emphasized the significance of these findings in understanding Roman society and its use of violence as entertainment and political display.

Gladiator games served not only as spectacles of power but also as warnings and demonstrations of Roman citizenship and virtue.

This discovery underscores the complex relationship between humans, animals, and culture in ancient Rome.

Source: www.nytimes.com

The Earth’s Rotation is Acting Strangely – The Explanations Revealed

For the past two decades, the rotation of the Earth has shown unusual behavior. Scientists have now identified a surprising cause for this phenomenon: the loss of water from the land.

A recent study published in Science reveals that significant changes in the Earth’s axis since the early 2000s, resulting in a wobble of about 45 cm, were not due to changes in the core, ice loss, or glacial rebound. Instead, they were caused by underestimated changes in soil moisture across the planet.

Between 2000 and 2002, over 1,600 Gigatonnes of water were lost from the soil worldwide. This water, when discharged into the ocean, impacted the Earth’s balance and influenced its rotation.

According to Professor Clark Wilson, a geophysicist at the University of Texas at Austin and co-author of the study, there was a period in the early 2000s when significant water losses occurred from the continents, aligning with certain climate models’ predictions.

Research led by Professor Ki-Weon Seo from Seoul National University in Korea used satellite radar data and soil moisture models to track changes in Earth’s water reservoirs from the late 20th to early 21st centuries. They discovered a sudden drop in soil moisture between 2000 and 2002, contributing to a yearly rise in the global sea level.

This decrease in soil moisture continued from 2003 to 2016, with an additional loss of 1,000 Gigatonnes of water. By 2021, soil moisture levels had still not recovered, indicating a significant and lasting shift in Earth’s land water storage.

The study emphasizes how changes in terrestrial water, particularly soil moisture, can influence Earth’s axis and rotation, leading to observable effects on the planet’s vital signs. The researchers suggest that this trend of drying soil is likely irreversible and could have far-reaching consequences on global water security, agriculture, ecosystems, and climate patterns.

Experts Involved

Clark Wilson: Professor Emeritus at the University of Texas at Austin, specializing in Earth and Planetary Sciences.

Ki-Weon SEO: Associate Professor at Seoul National University with a focus on ice mass losses and sea level rise.

Jay Famiglietty: Global Futures Professor at ASU’s School of Sustainability, specializing in water innovation and sustainable food systems.

This study highlights the importance of improving climate models to better understand and predict future climate conditions in the face of changing water dynamics on Earth.

Source: www.sciencefocus.com

Elite players’ psychological profiles revealed using AI by analysts in the soccer world

“This players didn’t show enough fights. “When you hear Pandit’s post-match reaction, you can hear a variation in the sound bite.

In an age where soccer is increasingly leaning towards data to demonstrate physical attributes, it is difficult to provide statistics that accurately show players’ psychological qualities, such as emotional control and leadership. However, Premier League clubs, including Brighton, use techniques aimed at helping them choose and recruit.

Thomas Tuchel made headlines by telling England players to communicate more after assessing their interactions in the Euro 2024 final, but counting the players and talking to each other on the pitch, showing that only a portion of the mental battles are featured.

Former Norway and Denmark top flight defender Yo Amankwa is at the heart of the push for a better psychological evaluation of players. “When you take your eyes off the ball, it’s a treasure trove of information,” says Amankwa, who also works as a critic. “You can’t just ignore the tactics and look at the psychological parts of the game and the player through this lens, and you can’t see it. It’s a subtle, nonverbal message to show whether the player is very confident, aggressive, or a bubble of his own.”




“It’s impossible to just ignore tactics and look at the psychological parts of the game,” says Yo Amanka. Photo: Shipa/Aramie

Amankwah uses the example of a player who blew a 20-yard shot into the stands, and after 45 seconds he receives a comforting putt behind him from his passing teammate. It’s a fleeting moment that may be overlooked or overlooked by fans, the media, and even the coaching team, but for a former expert, it shows a quiet sense of leadership. “I know the clues and small actions you need to learn to function effectively on the football pitch,” says Amankwa.

Over the past six years he has worked with psychology professor Geir Jordet to analyze thousands of hours of match footage from around the world, including videos of all players from the Premier League and Women’s Super League. As a result, we have a dataset containing over 100,000 unique observations. This allowed the duo to create proxy rankings for players across different types of behavior via Duo (Inside Out Analytics).

This information can show whether the defender’s emotional control is in the top 5% of the league compared to opponents and teammates in the same position. As Jordette puts it, “It’s a new world. This map gives clubs a benchmark. You can see certain behaviors and count the number of times that occur in certain situations, but most can blind you to what it means.

“It’s hard to understand the exact meaning of them, but we’re no longer blind because, for this type of behavior, in this situation, if you compare all the players of this player in this Premier League, this player is in the 90th or 10th percentile.”

Bayern Munich is one of several major clubs trying out the platform, adopting technology in his time as head coach of Julian Nagelsmann. “All departments [in a club] You put numbers on the table, but psychology isn’t,” says Max Perka, a former Bavarian psychologist. [what is happening] On the pitch. ”




Max Perka (left) and Julian Nagelsmann worked together at RB Leipzig before moving to Bayern Munich. Photo: DPA/Aramie

Following Nagelsmann from RB Leipzig to Bayern, Perka worked with Jordet and Amankwa to analyze roughly 25 Bayern games in the second half of the 2022-23 season.

After each match, Pelka blocks detailed observations of each player’s posture, head movements, and hand gestures, leaving some elements of the body language monitored by Amankwah’s analytics team to a one-page summary of the side’s psychological performance. The data was one of several information sets that Nagelsmann and his assistants should consider before choosing a side.

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“It was another variable that added to my idea of ​​choice,” Pelka says. “They could think if they really wanted a leader on their back four or if they wanted something else. [personality] option. ”


Players can also access an analysis of what Yoldett calls “the character of the game.” Perca said: [to play]. It doesn’t happen overnight, but if you have a starting point on how things look on the pitch, it’s much easier to work on. ”

Perca uses some of the techniques he employed in Munich to analyze Brighton’s players’ on-field behavior. He does not frequently monitor Fabian Hürzeler’s team, but the key board of the process is the same, with Brighton’s head coach reviewing a summary of key psychological “actions” on his part.

Jordet and Amnankwah are increasingly using artificial intelligence over manual coding, which consumed most of the pair’s time. “Soon there’s little limit to the number of teams you can analyze at any time, and we’ll actually start notifying the club about new signings in the future. “Yes, this seems like a good signature” or: “From our perspective, given these metrics, there’s a big red flag here and that’s what you might want to see.”

Source: www.theguardian.com

Avoiding Taxes in Ancient Rome: Secrets Revealed in 1,900-Year-Old Papyrus Scrolls

In what wasn’t exactly the tax evasion trial of the century – given that it took place in the second century – the charges faced by the defendants were so weighty that they included forgery, financial fraud, and fraudulent slave sales. While tax evasion is an age-old practice, these particular crimes were deemed extremely serious under Roman law, with penalties ranging from hefty fines and lifelong exile to grueling labor and, in the most severe cases, being devoured by wild animals in a practice known as damnatio ad bestias.

The details of the allegations were recorded on papyrus, which was discovered decades ago in the Judean Desert and recently subjected to analysis. The documentation includes preliminary notes for the prosecutor and hastily drafted minutes from the judicial hearings. According to the ancient records, the tax evasion schemes involved document tampering, illicit slave sales, and manumission.

The accused in both tax cases were men. One of them, Gadalius, was the son of a poor notary who had ties to the local administrative elite. In addition to convictions for extortion and forgery, his extensive list of transgressions included banditry, incitement, and four appearances in court for tax evasion before the Roman governor. Gadalius’s partner in crime was a certain Saurus, identified as his “friends and collaborators,” and the mastermind Caper. While the ethnicity of the accused is not explicitly mentioned, their Jewish background is inferred from their biblical names Gedaliah and Saul.

This ancient legal saga unfolded during the reign of Hadrian, around the year 130 AD or possibly before 132 AD when Simon Bar Kochiba, the leader of the Messianic rebels, launched a large-scale uprising, marking the third and final conflict between the Jewish people and the Empire. The rebellion was brutally suppressed, resulting in hundreds of thousands of casualties, mass expulsions of Jewish communities, and the renaming of Syria and Palestine by Hadrian.

Anna Dolganov, a historian of the Roman Empire at the Austrian Archaeological Institute who deciphered the scroll, remarked, “The papyrus sheds light on the Roman authorities’ suspicion of their Jewish subjects.” She pointed out that there is archaeological evidence of a coordinated effort during the Bar Kochiba rebellion. “It is plausible that individuals like Gadalia and Saurus, who sought to subvert Roman rule through tax evasion, were involved in the uprising’s planning,” Dr. Dolganov suggested.

In the latest edition of Tyche, an ancient journal published by the University of Vienna, Dr. Dolganov and three colleagues from Austria and Israel present court proceedings as case studies. Their research unveils how Roman institutions and imperial law influenced the administration of justice in an environment with relatively few Roman citizens.

“This document provides intriguing and valuable insights into the slave trade in this region of the empire,” noted Dennis P. Kehoe, a classicist at Tulane University not involved in the study. “The allegations may involve the Jews owning slaves.”

The exact date and location of the papyrus’s discovery remain uncertain, but Dr. Dolganov suggested it was found by an ancient Bedouin dealer in the 1950s. She suspected Nahal Haver, a steep canyon west of the Dead Sea where Bar Kochiba rebels sought refuge in a cave hid along the natural fault line of a limestone cliff. In 1960, archaeologists unearthed documents from the era in one of the Jewish hideouts, with more discoveries made since then.

A 133-line irregular scroll, initially misclassified, went unnoticed in the Israeli Antiquities Authority archives until 2014 when Hannah Cotton Parietl, a classicist at the Hebrew University of Jerusalem, identified it as being written in ancient Greek. Given the complexity and exceptional length of the document, a team of scholars was assembled to conduct detailed physical examinations and cross-referencing with historical sources.

Deciphering the papyrus and piecing together its intricate narrative posed a significant challenge for Dr. Dolganov. “The text features small, densely packed letters and highly rhetorical Greek replete with technical legal terminology,” she remarked. Unlike more straightforward documents such as contracts, there were no standardized templates for translation ease. “The fact that we only have the latter half of the original text further complicates matters,” Dr. Dolganov added.

Researchers speculated that the tax evasion scheme aimed to circumvent official scrutiny. This necessitated meticulous detective work to decipher the sequence of events. “I had to adopt the Roman fiscal authorities’ perspective to grasp the text’s nuances,” Dr. Dolganov explained. She also had to step into the accused’s shoes to understand the rationale behind tax fraud in the remote fringes of the Roman world.

The ancient stratagems resonate with contemporary tax experts. A German legal expert relayed to Dr. Dolganov that the subterfuges of Gadalius and Saurus mirrored present-day practices of tax evasion, such as asset shifting and fictitious transactions. The Roman interrogation methods aligned closely with modern-day investigative custody for financial crimes, marked by intimidation and frequently rigorous questioning.

A Princeton University classicist unaffiliated with the project, Brent Shaw, remarked:

The cases against Gadalius and Saurus were bolstered by intelligence provided by informants who betrayed them to the Roman authorities. Interestingly, the text implies that the informer might have been none other than Saurus himself, who implicated his partners to shield himself from an imminent financial scrutiny. The most plausible scenario posits that Saurus, a Jewish resident, orchestrated the pseudo-sale of several slaves to Chareas, a neighbor residing in the adjacent Arabian province, as per Dr. Dolganov’s interpretation.

By selling slaves across provincial borders, Saurus sought to obfuscate assets from scrutiny. While physically present in Saurus’s custody, the slaves, undocumented in Arabia, evaded declaration by Chareas. “Effectively, the slaves vanished on paper from Judea and never materialized in Arabia, eluding Roman oversight,” Dr. Dolganov noted. “This ensured that no further taxes were levied on these slaves.”

The Empire implemented a sophisticated system for monitoring slave ownership and collecting various levies, including a 4% tax on slave sales and a 5% duty on estates. “To emancipate empire-owned slaves, detailed documentary evidence of current and prior ownership was mandatory,” Dr. Dolganov elucidated. “Any missing or dubious documents would trigger an inquiry by Roman administrators.”

In an attempt to conceal Saurus’s double-dealings, Gadalius, the son of a notary, allegedly fabricated bills of sale and other legal documents. When authorities detected irregularities, the defendant purportedly bribed the local municipal council for protection. During the trial, Gadalius shifted blame onto his deceased father for the forgeries, while Saurus implicated Chaireas in the document tampering. The papyrus does not provide insights into their motives. “The rationale behind men risking forgery to liberate slaves without legitimate documentation remains a mystery,” Dr. Dolganov mused.

One conjecture posits that by orchestrating fake slave sales followed by manumission, Gadalis and Saurus may have been adhering to a Jewish religious mandate to free those enslaved. Alternatively, there might have been a profit incentive in capturing individuals across borders, potentially entrenching them as free Romans after freeing them from “enslavement.” Or Gadalia and Saurus might have engaged in human trafficking, a possibility that is as speculative as it is fraught with implications, Dr. Dolganov emphasized.

One aspect of the trial that struck Dr. Dolganov was the prosecutor’s professionalism. Employing sophisticated rhetorical strategies reminiscent of Cicero and Quintilian, the prosecutor exhibited a mastery of Roman legal terminology and concepts in Greek. “Here, on the edge of the Roman Empire, we witness a highly skilled legal practitioner steeped in Roman law,” Dr. Dolganov remarked.

The papyrus does not reveal the final verdict. “If a Roman judge deemed these men as incorrigible criminals deserving execution, Gadalius, as a member of the local elite, might have met a more merciful end through decapitation,” Dr. Dolganov suggested. “In any case, it beats being torn apart by a leopard.”

Source: www.nytimes.com

The Revealed Long-Term Effects of Pregnancy on Different Body Parts

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Pregnancy has many effects on the body

Anna Still/Getty Image

As anyone who goes through it knows, pregnancy transforms the body a lot. And now we have the most detailed picture of how it affects the blood, organs and immune system each week. This not only helps to provide post-pregnancy treatment, but also helps to identify the risk of developing certain conditions during pregnancy.

“We’ve got an unprecedented view of how much it takes a mother’s body to change weekly, to make up for the incredible load and how long it takes to recover after delivery,” he says. Uriaron At the Wiseman Institute of Science, Rehobot, Israel.

Despite its importance, pregnancy has not been studied, Aron says. For example, previous studies have tracked how about 20 blood markers change, including salt and iron levels. Up to about 6 weeks for dozens of pregnant women After delivery, samples collected during standard healthcare will be used. “These experiments are usually performed in a small number of patients and sample only once at the late pregnancy or at each time point,” Aron says.

To gain a more comprehensive view, Aron and his colleagues analyzed previously collected blood samples from over 160,000 women in Israel, ages 25 to 31. Together, these samples provided weekly, weekly physical snapshots from 20 weeks of conception to 18 months after birth, with each woman providing several points of data. This approach gives useful insight into how the body generally changes during pregnancy at the population level, but says that following the same woman over time will provide a better picture of the individual trajectory. Christofree Imperial College London.

The researchers mapped changes in 76 blood markers, including levels of protein, fat and salt that show the functioning of the liver, kidneys, blood, muscle, bone and immune system. They found that each of these markers differed significantly from preconcept levels during pregnancy to gradually return to preconceived levels or reverse overshooting before returning to preconceived baseline.

In particular, scientists found that 36 markers, including those associated with blood clotting, bounced off within a month of delivery, but 31 markers took more than 10 weeks to recover. For example, some changes to the liver and immune system took about 5 months to return to prepregnancy levels, and some kidney markers took about six months. Some bone and muscle markers took even longer. It is unclear what exactly this means for women’s health, but it should be investigated in future work, Aron says.

Additionally, several other markers did not return to baseline levels for more than one year after birth. “The slightly archaic view that by six or eight weeks after pregnancy, everyone is completely back to normal is clearly wrong,” says Leeds.

For example, iron levels remained much lower after giving birth. “Women are very likely to have anemia [have low iron levels] I think it will take 6-12 months for the iron shop to return to normal after giving birth due to bleeding, and as the developing fetus removes many iron stores from the body.

Meanwhile, levels of proteins called CRP remained high. “CRP is affected by many different processes. Inflammation is certainly one of them, but things like hormonal changes can also affect this,” says Lees. In another analysis, the team examined differences in markers between women with prelammosis. This saw people who are pregnant and not with hypertension, where high blood pressure can cause headaches, vision problems and pain under the ribs. This revealed that women who developed pre-lamp syndrome before conception had increased levels of blood cell fragments called platelets and proteins called ALT.

“For decades, the idea was that if the placenta wasn’t properly planted and not properly planted, the blood supply would be destroyed and the mother would release the hormones and substances that would help her blood pressure,” says Leeds. “However, some studies suggest that those who developed it have different cardiovascular functions before pregnancy. These findings add weight to this theory.”

If further studies have shown that these conceptual markers actually indicate the risk of pre-lammosis, they could be used to identify potentially high-risk women. “Then you can target ways to improve your health before pregnancy (through exercise and lifestyle advice) and reduce your risk,” says Leeds.

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Source: www.newscientist.com

Scientists have revealed that the extinct MOA used to eat a vibrant truffle-like fungus

Paleontologists have discovered ancient DNA and truffle-like fungal spores, including at least one colorful species. Upland More (Megalapteryx didinus) an extinct species of giant flightless bird endemic to New Zealand.

Boast et al. We report ancient DNA and spores from inside two coprolites in the highland MOA (Megalapteryx didinus) that reveals the consumption and possible dispersal of ectomycorrhizal fungi. Image credit: Jiji et al. , doi:10.1098/rsbl.2024.0440.

Fungi like truffles have fruit bodies that never fully open and have no way to expel the spores.

Other fungi do this by wind, but fungi like truffles rely on animals to consume them and disperse their spores.

Overseas, such fungi, including true truffles, are generally monotonous, have a strong aroma, and are very attractive to mammals.

In contrast, New Zealanders are often brightly colored, resembling fallen fruit on the forest floor.

These fungi may have relied on fruit-eating birds for dispersal, but there is little evidence that modern native birds eat them.

Ecologists have long debated that the original disperser must have been an extinct bird, but this has never been demonstrated.

In new research, Dr. Alexander boasts about Manaki.

The specimen was discovered in Hodges Creek Cave, near the Upper Takaka River basin in northwest Nelson and Takaha Valley (TV) in Fiordland on New Zealand’s South Island.

“Previous studies on coprolites have already shown that extinct MOAs ate brightly colored fruits and other plant matter, but new analysis shows that MOAs actually fed on these colorful truffle-like fungal species. ,” the researchers said.

“This discovery adds weight to the idea that these fungi have specifically evolved to be attractive to fruit-eating birds.”

“The MOA would have been good at dispersing fungal spores. Comparisons with its distant cousin The Ostrich, which retains food for about 36 hours after eating it, suggest that the MOA would have carried spores into the intestines over long distances.” It shows that we were able to do it.”

“But given that large birds are going extinct, what if these fungi are driving the dispersal they once depended on?”

“What will ultimately happen to these evolutionary anachronisms? Species that rely on other species to establish and thrive on things that are no longer there?”

“Furthermore, how might this loss affect the resilience and ability of current native forests to regenerate and expand?”

“Remaining species of herbivorous subterranean birds such as Weka are unlikely to compensate for the loss of MOA in dispersing these fungi.”

“In turn, this may have a knock-on effect on overall forest resilience today.”

“Forest species such as beech in New Zealand have evolved symbiotic relationships with native fungi, such as those detected at MoA Poos, benefiting regeneration and resilience, and the native fungi in the mix help improve forest resilience. may decrease.”

team’s paper Published in journal biology letters.

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Alexander P. Boasts et al. 2025. Coprolite DNA and spores reveal that the colorful truffle-like fungus endemic to New Zealand was consumed by the extinct MOA (Dinornithiformes). Biol. Lett 21(1):20240440; doi:10.1098/rsbl.2024.0440

Source: www.sci.news

Ancient tattoo designs on mummies revealed by shining laser

The tattooed hand of a 1200 year old mummy from Peru

Michael Pittman and Thomas G. Kaye

Laser scanning of a South American mummy reveals the intricate details of a tattoo dating back more than 1,200 years.

The mummy, belonging to a pre-Hispanic tribe known as the Chancays, was discovered in 1981 at the Cerro Colorado cemetery in Peru’s Huaura Valley.

It was obvious to the naked eye that many of the 100 mummies were tattooed, but the ink smeared beyond the boundaries of the original design and faded, making it impossible to see what the original markings looked like. It was impossible.

In a new study, michael pitman Researchers at the Chinese University of Hong Kong shined a laser on the specimens in a dark room and took long-exposure photographs. The laser brightened the skin and created a sharp contrast with the non-fluorescent tattoo ink.

This technique, which does not damage mummies, has never been used for tattoos before. Importantly, Pittman says, it shows not only where the ink is on the surface, but also where it is in the deeper layers of the skin.

“This allowed us to see the bleeding that had accumulated over the lifetime of the tattoo owner and reveal the original, finer design of the tattoo,” he says.

Researchers say the tattoo is so minute that it must have been created using a needle-and-ink technique using cactus needles or sharp animal bones, rather than a “cut-and-fill” method. That’s what I think.

Tattoos appear to have been important to the Chancay people, Pittman said, as they appear on the majority of known mummified human remains.

Forearm with Chancay mummy tattoo

Michael Pittman and Thomas G. Kaye

“Many of the designs, which are geometric patterns featuring triangles and diamonds, are also shared in other art mediums such as pottery and textiles, and some ceramic figures show geometric tattoo designs. Some are,” he says.

Some tattoos have intricate designs that seem to require special effort, while others are small and simple. “Thus, ancient Chancay tattoos show some similarities with the variations in design and significance that can be observed in tattoos today,” Pittman says.

Pittman says many traditional tattoos made by other ancient peoples can also be viewed in detail using laser-stimulated fluorescence technology. “We therefore plan to apply this method to other ancient tattoos from cultures around the world and try to make other interesting discoveries,” he says.

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Source: www.newscientist.com

New Zealand Revealed: Unearthed Fossils of Rare Whitefly and Plantain Insects

Paleontologists have identified a new genus and species of whitefly from fossils found in Miocene crater lake deposits at Hindon Mar, near Dunedin, Otago, South Island, New Zealand.

Close-up of two small pupae Miotetraleurodes novaezelandiae It is attached to the leaves of angiosperms. Image credit: Drohojowska others., doi: 10.1007/s12549-024-00628-z.

Adult whiteflies are small insects about 3 mm in size, and immatures are even smaller.

The fossil discovered at Hindon Maar is approximately 1.5mm x 1.25mm and was preserved by pasting it on the back of a fossilized leaf.

It has a black, oval body and has some similarities with modern whiteflies, such as shape and color, but differs in that all parts of the body are clearly defined by deep sutures.

“Fossils of adult whiteflies are not uncommon, but unusual circumstances are required for the pupa (the protective shell in which the insect emerges) to become fossilized,” says palaeontologist at the University of Göttingen and former postdoctoral researcher at the University of Göttingen. says Dr. Uwe Kaulfus. University of Otago.

“About 15 million years ago, the pupal leaves must have been torn off the tree, blown into a small lake, sunk to the deep lake bed, become covered in sediment, and become fossils.”

“It must have happened in quick succession because the fossils of the small insects are so well preserved.”

“The new genera and species described in our study are Miotetraleurodes novaezelandiaerevealed for the first time that whitefly insects were an ecological component of ancient forests in the South Island. ”

“It was difficult to see much with the naked eye, but when we looked at the fossils under a microscope we could see amazing details,” said Emeritus Professor Daphne Lee from the University of Otago.

“The fact that they are still alive on leaves is incredible and extremely rare.”

“These small fossils are the first of their kind to be found in New Zealand, and only the third pupa fossil of this type known worldwide.”

“These new discoveries from the Otago fossil site are an important contribution to our understanding of New Zealand's past biodiversity and forest ecosystem history. It means we have a new appreciation for the importance of it.”

“Most people are interested in big fossils, big charismatic fossils, but most of the animals in the forest are insects.”

“New Zealand is home to 14,000 insect species, 90% of which are found nowhere else in the world.”

“The discovery of these tiny fossils shows that this insect group has been present in Aotearoa New Zealand for at least 15 million years.”

“This provides a well-dated calibration point for molecular phylogenetic studies.”

of study Published in a magazine Paleobiodiversity and paleoenvironment.

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J. Drohojovska others. The first Miocene whiteflies and parrots (Hemiptera: Sternorrhyncha: Aleyrodoidea and Psylloidea) from Aotearoa, New Zealand. Paleobio Paleoembupublished online on October 1, 2024. doi: 10.1007/s12549-024-00628-z

Source: www.sci.news

New Insights into Paleolithic Fishing Techniques Revealed by Ancient Carved Shield from 15,800 Years Ago

Scientists from the Leibniz Center for Archaeology and Durham University conducted a study on a collection of 406 carved schist tablets discovered at the Magdalenian site in Gennersdorf, Germany. These ancient carvings depict fishing techniques and tools used by Paleolithic people, showcasing nets with interlaced diamond and square mesh. This provides valuable insight into the transformation of their culture.

Placket 341 from the Magdalenian ruins of Gennersdorf, Germany. Image credit: Robitaille others., doi: 10.1371/journal.pone.0311302.

“Prehistoric fisheries introduced a variety of techniques and strategies for capturing fish. It can be summarized as active fishing, which requires active fishing, passive fishing with trapping methods, or a combination of both,” said Dr. Jérôme Robitaille of the Leibniz Center for Archaeology and colleagues.

“Some methods have been developed for individual fishing, such as fishing, while others have been improved to maximize yields using collective nets and traps.”

“The choice of a particular method was influenced not only by the fish species targeted, but also by the distinct habitats and topography in which particular aquatic resources thrive.”

“Evidence for fishing in the Upper Paleolithic (20,000 to 14,500 years ago) is not abundant, but there is direct and indirect evidence of several fishing methods, including barbed tips and harpoons, bows and arrows, traps, and fishing nets. exists sporadically.”

In their study, the authors analyzed carvings carved into 406 schist plaquettes from the Magdalena site in Gennersdorf, on the north bank of the Rhine River in central-western Germany.

These plaquettes feature a unique artistic style and iconographic theme depicting both terrestrial and aquatic animals and humans.

The new imaging technique allowed researchers to see intricate carvings on the fish, with grid patterns interpreted as depictions of fishing nets or traps.

This discovery suggests that fishing may have had symbolic meaning in the Upper Paleolithic.

These expand the known repertoire of Ice Age art and provide surprising insights into the symbolic and social practices of early hunter-gatherer societies.

“A comparative analysis including other sites from the same period, such as Altamira and Lascaux, highlights Gennersdorf’s contribution to the understanding of Paleolithic art and survival strategies,” the scientists concluded.

“Unlike famous locations known for their vivid depictions of fish, Gennersdorf’s abstract, minimalist style offers a fresh perspective on the sociocultural dynamics of the Magdalene community.”

“Net fishing, which originates from a wide range of economies, reveals the diversity, adaptability, and creativity of prehistoric communities, and their proficiency in utilizing a variety of fishing methods to sustainably exploit aquatic resources.”

“This research not only increases our understanding of the diverse survival strategies of Paleolithic societies, but also contributes to a broader discussion about the complexity and richness of their cultural practices.”

“By highlighting often overlooked aspects of fishing practices and the representation of those practices in art, our research adds to a more comprehensive and dynamic picture of Upper Paleolithic subsistence and contributes to the field. opens new avenues for future research in the field. “

“Clearly fishing plays a more important role in shaping social and cultural practices than hitherto recognized, as evidenced by population patterns around rich fishing grounds, and is therefore a subject worthy of further investigation.” It is.”

of study Published in an online journal PLoS ONE.

J. Robitaille others. 2024. Upper Paleolithic fishing techniques: Insights from carved plates from the Magdalenian site of Gennersdorf, Germany. PLoS ONE 19 (11): e0311302;doi: 10.1371/journal.pone.0311302

Source: www.sci.news

Uncovering the Strava Controversy: How a Fitness App Revealed the Identities of the World’s Elite

name: strava

year: It was founded in 2009 by former Harvard rowers Michael Horvath and Mark Gainey.

What exactly is that? fitness app.

How does it work? It is popular among cyclists and runners who use GPS data to track their activities and record their activities to share with the community. Also useful for jackals…

Like “The Day” of … ‘'?Why? Investigation by French newspaper Le Monde We’ve used it to track the movements of Joe Biden, Donald Trump, Kamala Harris, and other world leaders.

trump doesn’t do that Looks like a typical Strava user… Well, not specifically them, but their bodyguards. Le Monde found that some US Secret Service agents have been using the app since the Trump assassination attempt. They also used the bodyguard’s Strava profile to track the movements of Jill Biden and Melania Trump.

Perhaps they realized that Melania is no longer close to her husband? It’s not that kind of investigation. In another example, an agent’s Strava tracked jogging route was used to identify the San Francisco hotel where Joe Biden was meeting with Chinese President Xi Jinping.

Seems very lax, but are agents even allowed to use personal phones? Although prohibited during work hours, the U.S. Secret Service told Le Monde that personal use of social media outside of work hours is not prohibited. But they also said that “affected personnel have been notified” and that “this information will be reviewed to determine if additional training or guidance is required.”

It’s like he’s worried. Is it just Americans? Mysnon. The paper also identified 12 members of the French security group GSPR and six members of Russia’s FSO.

President Putin will probably tell us to be more careful in the future.. There has been no communication from the Kremlin. Mr Macron’s office said it had not affected his security but had instructed agencies not to use the app.

IIs this the first time you’ve had security concerns regarding Strava? It’s interesting so you should give it a listen. In 2018, students discovered they had created maps of US military bases in Syria and Afghanistan, as well as the Royal Navy’s Faslane base. Another security flaw in 2022 revealed the identity and movements of: Israeli military base security guard. And things got very serious last July…

Oh please continue. Rental runner in Singapore hit the news It offers a service that lets you log on to someone else’s ID, run on their behalf, and charge them per kilometer.

So can people pretend to exercise when they don’t? that’s right. I became known as the Strava Jockey.

But that would defeat the whole purpose. No praise! Well, some people will do anything to get a better PB.

Please say:Strava It means effort in Swedish, don’t you know? “

Please don’t say things like: “Oh, that’s the layout of Camp David…”

Source: www.theguardian.com

Insights into large pterosaur flying capabilities revealed by new fossils found in Jordan

Paleontologists have unearthed the fossils of two different large azhdarchoid pterosaurs. Inabatanin Arabia And previously known species Arambrugiana Philadelphia — Discovered in Upper Cretaceous deposits in Jordan, the fossils have led researchers to hypothesize that not only could the largest pterosaurs fly, but that they may have had a different style of flight.

Inabatanin Arabia (Top) Flying while flapping its wings Arambrugiana Philadelphia (Below) Soaring like a vulture. Image courtesy of Terrill Whitlatch.

Pterosaurs are an extinct group of flying reptiles that existed from the Late Triassic until the mass extinction at the end of the Cretaceous period.

They evolved powered flight about 50 million years before flight feathers appeared in the fossil record, and some achieved wingspans twice that of the largest flying birds (12 metres versus 6 metres).

“Our team was very surprised to find a three-dimensionally preserved pterosaur bone, which is a very rare occurrence,” said University of Michigan paleontologist Kerstin Rosenbach.

“Because pterosaur bones are hollow, they are extremely fragile and, if preserved, are likely to be found flat like a pancake.”

Dr. Rosenbach and his colleagues discovered two azhdarchoid pterosaur specimens in Jordan, one of which corresponds to a giant species. Arambrugiana Philadelphia (wingspan about 10 meters) and the second is a new, smaller species. Inabatanin Arabia (Wingspan approximately 5 meters).

They used high-resolution computed tomography (CT) scans to analyze the internal structure of the wing bones.

“3D preservation is very rare, so we don’t have a lot of information about what the inside of a pterosaur bone looks like, so we wanted to do a CT scan,” Dr Rosenbach said.

“It’s entirely possible that nothing was preserved inside, or that the CT scanner was not sensitive enough to distinguish the fossil bone tissue from the surrounding matrix.”

“But fortunately, what we found was amazing, with exciting internal structures that were not only preserved but could be seen with a CT scanner.”

New specimens Arambrugiana Philadelphia Its wingspan was determined to be 10 metres, and the first details about the reptile’s skeletal structure were revealed.

CT scans revealed that the humerus is hollow inside, with a series of spiral ridges running up and down the bone, similar to the internal structure of a vulture’s wing bones.

The spiral ridges are thought to resist the torsional loads associated with soaring (sustained powered flight that requires flapping wings to launch and maintain).

The Inabutinin Arabian specimen is one of the most complete pterosaurs ever discovered in Afro-Arabia.

CT scans revealed that the structure of its flight bones is completely different from that of Arambourgiania philadelphiae.

The interior of the flight bone was crossed with an arrangement of struts that matched those seen in the wing bones of modern flapping birds.

This indicates that it was adapted to withstand the bending loads associated with flapping flight, and so it is likely that Inabatanin flew in this way, although it does not exclude the possibility that other flight styles may have been used from time to time.

Inabatanin Arabia “It’s not uncommon, but it’s fun to see,” Dr. Rosenbach said.

Arambrugiana Philadelphia It was totally unexpected and at first I had no idea what I was looking at.”

“Being able to see the entire 3D model, Arambrugiana PhiladelphiaI was really excited to see the spiral ridges on the humerus.”

The discovery of diverse flight styles among different sized pterosaurs is extremely exciting as it gives clues about how these animals lived.

It also raises intriguing questions, such as to what extent flight style correlates with body size and which flight style is more common among pterosaurs.

“We have very limited information about the internal structure of pterosaur bones over time, so it’s hard to say with any certainty which style of flight emerged first,” Dr Rosenbach said.

“If you look at other groups of flying vertebrates, birds and bats, you’ll find that wing flapping is by far the most common flight behavior.”

“Even soaring and gliding birds need some flapping to take to the air and continue flying.”

“This leads us to suggest that if flapping flight was the default state and was advantageous for a population of pterosaurs in a particular environment, in this case the open ocean, then soaring behaviour probably evolved later.”

a paper The paper on the survey results is Journal of Vertebrate Paleontology.

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Kirsten L. Rosenbach othersNew pterosaur fossils from the Afro-Arabian Late Cretaceous provide insight into the flying capabilities of large pterosaurs. Journal of Vertebrate PaleontologyPublished online September 5, 2024; doi: 10.1080/02724634.2024.2385068

Source: www.sci.news

Playing Out Each UK Party’s First Years of Power in a Video Game Revealed Disastrous Results

circleWhether referred to as manifestos or contracts, the documents released by political parties before elections often lack substance despite their length. Filled with idealistic scenarios, vague proposals, and questionable cost estimates, it’s difficult to gauge the true impact each party’s implementation would have on the UK. To investigate this, I’ve been inputting party documents into the political strategy video game Democracy 4 to see the outcomes. The results are… well, you can see for yourself.

Democracy 4 allows players to simulate their political fantasies or nightmares and witness how their decisions influence their chances of re-election. Developed by Positech Games, the game models various democracies, including the UK, with their respective institutions, government policies, and tax rates based on publicly available data. The simulation features thousands of virtual voters, each with unique characteristics. For example, the majority of UK citizens identify as capitalists, but they may also be middle-income, affluent, or farmers, commuters, or self-employed.

Democracy 4 serves as an approximate representation of the British political landscape of 2024, offering insights into the potential outcomes of each major party’s agenda. By testing the policies of the Conservatives, Labour, and the Liberal Democrats, the game reveals who stands to benefit, who may be adversely affected, and whether any real progress can be achieved.




Simulated UK demographics. Photo: Positech Games

Keep in mind that Democracy 4 does not simulate Scotland and Wales separately, thus unable to capture the nuances of the SNP and Plaid Cymru’s plans. I have focused on the Conservatives, Labour, and the Liberal Democrats in my simulations. Each party assumes power with a slim 10% majority on July 5th, facing similar economic challenges. Can Labour bridge the funding gap across all sectors by boosting the UK economy? Will the Conservatives’ tax cuts stimulate business growth? And can the Liberal Democrats’ wealth tax and public service investments eliminate the national debt deficit?

Source: www.theguardian.com

The universe’s size and shape as revealed by space-time

NASA, ESA, CSA, STScI

In a sense, we are at the center of the universe. But that’s because we see the same distance in every direction, and the observable universe is perfectly spherical. Due to the limitations of the speed of light and the inexorable expansion of the universe, we can see about 46 billion light years away in every direction. What is beyond this horizon? That is a mystery that will never be solved.

But there are clues. The overall size of the universe is governed by two competing effects: gravity and dark energy. All matter has mass, which causes gravity, pulling everything to everything else. But to their surprise, early 20th-century cosmologists discovered that distant galaxies appear to be moving away from us at incredible speeds. The mysterious force that causes this strange expansion of space is called dark energy, and its nature remains a mystery to this day.

“Before we discovered dark energy and accelerating expansion, the universe was much simpler,” the cosmologist says. Wendy Friedman Researchers at the University of Chicago say that without dark energy, the universe would be much smaller, making its size easier to predict.

Even with dark energy, the universe may only be slightly larger than we can see. Jean-Luc LehnersHe then worked at the Max Planck Institute for Gravitational Physics in Germany. Jerome Quintin University of Waterloo, Canada The model was published It suggests that the period of rapid expansion just after the Big Bang, the so-called inflation, may have been even shorter than we thought, making the universe smaller…

Source: www.newscientist.com

Titan’s underground ocean revealed by Cassini observations

Titan, Saturn’s largest moon, harbors an ocean of low-density water or ammonia inside, according to an analysis of archival data from NASA’s Cassini mission.

A representation of Cassini’s orbit used to calculate Titan’s gravity. The colored part of the orbit shows the distance from Cassini to Titan, with the minimum distance shown in red. A cross-section of Titan shows the moon’s different layers and blue oceans. In the background you can see Saturn with its rings and ring shadows. Image credit: Britt Griswold, NASA Goddard Space Flight Center.

“Liquid water is one of the prerequisites for life,” said Dr. Sander Goossens of NASA’s Goddard Space Flight Center and colleagues.

“Water is rarely liquid on the surfaces of planets, but many moons of the solar system, such as Titan, have underground oceans.”

“These probably formed a long time ago, which begs the question why they haven’t already frozen in a cold environment far from the sun.”

“Our study supports the explanation that ammonia extended the life of Titan’s liquid oceans. Additionally, it also provides insight into Titan’s deeper layers.”

NASA’s Cassini mission explored Saturn and its icy moons for more than a decade.

Among its many instruments, Cassini carried a radio science subsystem that enabled radiation tracking of Earth-based spacecraft by the Deep Space Network.

These data were used to determine the gravitational field and internal structure of some of Saturn’s moons and Saturn itself. Cassini data was also used to determine Titan’s tidal response.

“The Cassini space probe flew around Saturn from 2005 to 2017,” the researchers said.

“Probes have been sent close to the moon many times to accurately measure Titan’s gravity.”

“Cassini needed to skim past Titan at exactly the right time to properly map the changes in gravity.”

“This is because Titan’s deformation is due to Saturn’s tidal forces, and the tidal forces depend on the distance between Titan and Saturn.”

“Measurements taken when Titan was close to Saturn and when it was far away maximized the difference in Titan’s deformation, and therefore its impact on gravity.”

Scientists calculated Cassini’s speed from precise radar measurements and calculated changes in gravity and the resulting deformation of Titan.

They carefully examined the tidal effects on Titan at each location on the spacecraft’s orbit and concluded that the deformation was smaller than previously calculated.

According to numerical simulations of the moon’s deformation for different internal structures, the most likely scenario is that the ocean has a density similar to water and contains small amounts of ammonia.

“The subsurface ocean may help transport organic matter from the moon’s rocky core to the surface,” the authors said.

“It was thought that Titan’s thick layer of ice between its ocean and its core made this difficult.”

“Our analysis suggests that the ice layer may be thinner than previously thought, and that material exchange between the rock and the ocean is more likely.”

“The organic molecules this produces are considered important ingredients for the emergence of life.”

of study It was published in the magazine natural astronomy.

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S. Goossens other. A low-density ocean inside Titan estimated from Cassini data. Nat Astron, published online March 21, 2024. doi: 10.1038/s41550-024-02253-4

Source: www.sci.news

The Mysteries of Gorilla Gas: What Secret Footage from the Jungle Revealed about Primate Flatulence

Hamsters, horses, and humans all do it, so it’s no surprise that gorillas, one of our closest living relatives, also fart a lot.

Farting is the body’s natural way of expelling unwanted gases produced by intestinal bacteria. These gases include odorless ones like carbon dioxide, hydrogen, and methane, as well as smelly sulfur compounds that can sometimes create a noxious odor.

There are two types of gorillas, the eastern gorilla and the western gorilla, both found in the forests of equatorial Africa. These large primates, weighing up to 190 kg (420 lb), primarily eat fiber-rich plants. They typically consume around 20 kg (44 lb) of nettles, wild celery, and other plants daily through foraging.


When gorillas are not eating, they are usually resting, allowing their bodies to digest. Gorillas in the wild are known to have a lot of flatulence, especially during certain times of the year.

A recent BBC series titled spy in the wild revealed how much gas gorillas produce. Using a remote-controlled camera, researchers captured footage of mountain gorillas in Uganda. They observed that gorillas tend to vocalize while eating, and there is a constant tramping sound between meals.

Researcher Jordi Galvani Casals, who studies mountain gorillas, stated that gorillas always have a significant amount of flatulence.

This article was written in response to the question asked by Alan Rose via email: “Are gorillas permanently bloated?”

If you have any questions, feel free to contact us at: questions@sciencefocus.com or reach out to us on Facebook, Twitter, or our Instagram page (don’t forget to include your name and location).

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Source: www.sciencefocus.com

The mystery of Cretaceous shark hunting techniques revealed through detailed fossil analysis

Petitcodus shark fossil discovered in Mexico

Roman Vullo

A fossil shark that thrived during the Cretaceous period has been found and has shed light on how sharks hunted and their place on the evolutionary tree.

Fossil shark teeth Ptychodus have been in museums for over 200 years. While some members of this group grew to be enormous, the anatomy of others was largely unknown.

This lack of information left researchers uncertain about the shark’s overall appearance and feeding habits, but the wide, flat teeth suggest it was capable of eating hard-shelled prey.

Recently, Professor Roman Vullo at the University of Rennes in France discovered six well-preserved full-body fossils of Ptychodus in Mexico, placing the shark in the order Lamniformes alongside modern shark species like great whites and basking sharks.

What makes this discovery interesting is that while modern white sharks are known for hunting in open waters, Ptychodus were fast swimmers and voracious eaters in the open ocean, preying on armored pelagic fish like large ammonites and sea turtles.

Despite the small size of the studied specimens, estimated to be less than 3 meters long, researchers believe some members of the genus reached lengths of about 9.7 meters – twice the size of a great white shark. Females tended to be larger, measuring between 4.6 and 4.9 meters in length.

During the Cretaceous period, Ptychodus sharks played a significant role in the marine food chain. They likely competed with large marine reptiles with crushing dentition, which may have led to their extinction before the end-Cretaceous extinction event.

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Source: www.newscientist.com

‘Escape through Animal Crossing: Psychology of the pandemic revealed’ | Games

‘TToday is the first day of your new life on this pristine and beautiful island. Well then, congratulations! ” says benevolent raccoon landlord Tom Nook minutes into Animal Crossing: New Horizons. (Nook gets a lot of hate online, but there’s no denying he’s very welcoming.) Many players read this comforting message during a time of uncertainty and fear in the real world. Animal Crossing: New Horizons was released on Nintendo Switch on March 20, 2020., days before the UK entered its first Covid lockdown.

This was fortuitous timing. When we were all stuck at home, thanks to this game you can plant local fruit, take care of your flowers, see what’s on offer in the shops in town, and play with Tom Nook. I was able to repay a large loan (thankfully interest free) and escape. Chaos and daily death toll. We opened the gates to our island and welcomed friends and strangers into our pristine little world. When real life fell apart, we started anew glasses cat, Sheep in a clown coat and rhinoceros like cake.

Due to the sudden popularity of the game Nintendo Switch sales status surge amid pandemic shortages. new horizons sold 44.79 million units By December 2023 – almost 3.5 times more than any other game in the Animal Crossing series since 2001. This is his second best-selling Switch game to date after Mario Kart 8 Deluxe.


“I visited a friend who was far away in real life”…Many people still play this game.

Player April said she and her partner Matthew have spent over 700 hours playing the game, turning their island into a collaborative…

Source: www.theguardian.com

What’s Inside the Ancient Herculaneum Scrolls Revealed by AI

Vesuvius Challenge Grand Prize winner used technology to decipher corrupted papyrus scrolls

vesuvius challenge

Artificial intelligence helped decipher ancient papyrus scrolls that were turned into blackened blocks of carbon by volcanic ash from Mount Vesuvius in 79 AD. The first passage of this easy-to-read text reveals the Greek philosopher's never-before-seen musings.

This discovery won a grand prize of $700,000. vesuvius challengeThey then used a combination of 3D mapping and AI techniques to detect ink and decipher the shapes of the letters in digitally scanned segments of a scroll known as the Herculaneum Papyrus. Winning team members Yusef Nader, Luke Fariter and Julian Siliger help pave the way for further discoveries from additional papyrus scrolls once housed in the library of the ancient Roman town of Herculaneum. there is a possibility.

“I think this is a huge boon to our knowledge of ancient philosophy. It's just a huge amount of new text,” he says. michael mc oscar A professor at the University of London, he was not involved in the discovery.

The winning entry met the Vesuvius Challenge criteria of deciphering at least 85 percent of the letters in four sentences of 140 characters each. Plus, as a bonus, we included 11 more columns of text totaling over 2000 characters.

These rediscovered Greek letters reveal the thoughts of Philodemus, who is believed to have been the resident philosopher of the library containing the Herculaneum Papyrus. The deciphered texts focus on how the scarcity or abundance of food and other goods affects the pleasure they bring. This fits with Philodemus' philosophy of the Epicurean school, which prioritized pleasure as the main goal of life. His 2,000-year-old writings even seem to delve into the philosophy of Stoicism, which “says nothing about pleasure.”

And the Vesuvius challenge is not over yet. Goals for 2024 include finding ways to scale up his 3D scanning and digital analysis technology without becoming too expensive. Current technology costs $100 per square centimeter. That means it could cost anywhere from $1 million to $5 million to effectively unravel the entire scroll, and there are 800 scrolls waiting to be deciphered.

“Realistically, the majority of the known libraries already in the public domain are Epicurean philosophy, and that's what we should expect, but there are also important Stoic texts, perhaps some history and Latin literature. Yes. Full text of early Roman writers such as Ennius and Livius Andronicus. [whose works] “Even if we don't survive, that would be great,” McCosker said. “Epicurus' SymposiumThe book he wrote about the biology of wine consumption would be a lot of fun. ”

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Source: www.newscientist.com

The Genetic Origins of Multiple Sclerosis in Northern Europeans Revealed by Ancient DNA

Northern Europeans have a higher risk of multiple sclerosis due to ancient DNA, a study reveals. About 5,000 years ago, people flocked to this area.

This discovery emerged from a large-scale study comparing modern DNA with DNA obtained from ancient human teeth and bones. This allowed scientists to explore prehistoric migration and associated disease-related genes.

Results show that when the Yamnaya people migrated from present-day Ukraine and Russia to northwestern Europe during the Bronze Age, they carried a genetic mutation. This mutation is now known to increase the risk of multiple sclerosis.

The study, published in the journal Nature, suggests that these genes not only allowed the Yamnaya to flourish and spread but also protected them from infectious diseases carried by cattle and sheep.

The project, led by Eske Willerslev and the University of Copenhagen, is pioneering ancient DNA research and comparing it to similar research, including tracking down early cousins such as Neanderthals.

The process of ancient DNA extraction at the Lundbeck Foundation Geogenetics Center in Copenhagen.Michal Schlosser / University of Copenhagen (via AP)

This gene bank’s first exploration of multiple sclerosis is especially relevant since the disease is most common among people of white Scandinavian descent, yet the reason remains unknown.

Scientists believe certain infections can cause MS in genetically susceptible individuals. Over 230 genetic mutations have been identified that may increase the risk of this disease.

The study uncovered major changes in the population of northern Europe, tracing the migration of the Yamnaya people around 5,000 years ago. The gene bank was used to compare ancient DNA with around 400,000 modern humans

Comparisons revealed that MS-related genetic variants remained in the north, the direction the Yamnaya migrated, rather than in southern Europe. This supports the idea that the Yamnaya people are the closest ancestors of modern Danes, and the incidence of MS is particularly high in Scandinavian countries.

Dr. Astrid Iversen from the University of Oxford explains how exposure to animal-based bacteria may lead to imbalances in the immune system, possibly playing a role in the early development of autoimmune diseases.

While the study provides a potential explanation for the North-South MS disparity in Europe, further research is required to confirm the link. This statement comes from New York’s M.D., Samira Asghari, a genetics expert at Sinai School of Medicine, who was not involved in the study.

Source: www.nbcnews.com

New Strategy Revealed by Scientists to Combat Antibiotic Resistance







Document

The urgent crisis of antibiotic-resistant superbugs is being solved in groundbreaking research by the University of Massachusetts Amherst and Microbiotics. Their research focuses on disrupting the pathogen’s type 3 secretion system, providing a new approach to preventing infectious diseases. This strategy, supported by innovative luciferase-based technology, could pave the way for new drugs, improve our understanding of microbial infections, and lead to major advances in public health. Credit: SciTechDaily.com

The team is developing tests to identify new drugs that neutralize pathogens and provide substantial benefits to public health.

Antibiotic-resistant “superbugs” could overwhelm efforts to eradicate “superbugs” are an imminent public health crisis, with more than 2.8 million antibiotic-resistant infections occurring each year, according to the CDC disease is occurring. Researchers around the world are struggling to address this challenge.

Recently, a collaborative team of researchers led by the University of Massachusetts Amherst and including scientists from biopharmaceutical companies microbiologypublished in a magazine ACS infection They said they have successfully learned how to interfere with a key mechanism used by pathogens to infect host cells, called the type 3 secretion system. Additionally, the researchers report that they have developed a test to identify the next generation of drugs that target this vulnerable cellular machinery and have real benefits for public health.

A typical strategy when treating microbial infections is to attack the pathogen with antibiotics, which work by entering and killing harmful cells. This is not as easy as it sounds. New antibiotics need to be water-soluble so they can easily pass through the bloodstream, and oil-based to cross the cell membranes that are the first line of defense of pathogenic cells. Of course, water and oil don’t mix. It is difficult to design a drug that has enough of both properties to be effective.

The type 3 secretion system relies on two proteins, PopB and PopD (red and blue), which form tunnels in the host cell wall.

That’s not the only problem. Antibiotics can’t cause any harm because pathogenic cells have developed something called an “efflux pump” that can recognize them and safely pump them out of the cell. If an antibiotic cannot overcome the efflux pumps and kills the cell, the pathogen will “remember” what that particular antibiotic is and create additional efflux pumps to deal with it efficiently. Develop. This means that they become resistant to that particular antibiotic.

One way forward is to find new antibiotics or combinations of them to stay one step ahead of superbugs.

“Or you could change your strategy,” says Alejandro Heuch, associate professor of biochemistry and molecular biology at the University of Massachusetts Amherst and lead author of the paper. “I am a chemist and have always been interested in understanding how chemical molecules interact with living organisms. In particular, I understand the communication between pathogens and the host cells they try to invade. We have focused our research on molecules that make this possible. If we don’t try to kill the pathogen, there’s no chance that the pathogen will develop resistance. We’re just jamming that machine. The pathogen is still alive. It’s just ineffective, and the host has no chance of developing resistance. You have time to use your natural defenses to eliminate the pathogen.”

Heuck and his colleagues are particularly interested in a communication system called the type 3 secretion system, which so far is thought to be an evolutionary adaptation unique to pathogenic microorganisms. Understanding host-pathogen interactions.

Like pathogenic cells, host cells have thick and impermeable cell walls. To overcome these, pathogens first developed syringe-like machines that secreted two proteins known as PopD and PopB. Neither PopD nor PopB can break through the cell wall on their own, but together the two proteins can create a “translocon,” the equivalent of a tunnel through the cell membrane. Once the tunnel is established, the pathogenic cell can inject other proteins that serve to infect the host. This entire process is called the type 3 secretion system, and it cannot function without both PopB and PopD. “If you don’t try to kill the pathogen, there’s no chance of it developing resistance,” Huke says. We’re just jamming that machine. The pathogen is still alive. It’s just ineffective, and the host needs time to use its natural defenses to eliminate the pathogen.

Heuck and his colleagues realized that a type of enzyme called luciferase (similar to what makes lightning bugs glow at night) could be used as a tracer. They split the enzyme into two halves. Half of it was integrated into the PopD/PopB protein and the other half was integrated into the host cell.These engineered proteins and hosts can receive a large influx of different compounds. If the host cell suddenly glows, it means that PopD/PopB has broken through the cell wall and recombined her two halves of luciferase, causing it to glow. But what if the cells remain dark? “Then we can see which molecules disrupt the translocon,” Huke says.

Huke was quick to point out that his team’s research not only has obvious applications in the pharmaceutical and public health worlds, but also advances our understanding of exactly how microbes infect healthy cells. “We wanted to study how pathogens work, and suddenly we realized that our discoveries could help solve public health problems,” he said.

Reference: “Cell-based assay to determine translocon assembly of the type 3 secretion system in Pseudomonas aeruginosa using split luciferase” by Hanling Guo, Emily J. Geddes, Timothy J. Opperman and Alejandro P. Heuck , November 18, 2023 ACS infection.DOI: 10.1021/acsinfecdis.3c00482

This research was supported by the Massachusetts Amherst Applied Life Sciences Institute, a Healey Foundation grant, and National Institutes of Health.


Source: scitechdaily.com

‘Saturn’s Rings Revealed: Hubble Space Telescope Discovers Intriguing ‘Spokes’ within’

Saturn, a gas giant, is known for its iconic ring system. But its B ring may have spots or streaks of denser or brighter material known as spokes, which may be related to the dust’s interaction with the planet’s magnetic field. A new image of Saturn taken by the NASA/ESA Hubble Space Telescope on October 22, 2023 reveals the spokes of its rings.

This Hubble image shows Saturn, its bright white rings, and its three moons: Mimas, Dione, and Enceladus. Features on the left and right spokes of the ring appear as faint gray smudges against the ring’s bright background, approximately halfway from the planet to the ring’s outer edge. Image credit: NASA / ESA / Hubble / STScI / Amy Simon, NASA Goddard Space Flight Center.

Saturn’s spokes (so named because they resemble bicycle spokes) are temporary features that rotate with the rings.

Their ghostly appearance only lasts for two or three revolutions around the giant planet.

During the active period, newly formed spokes continually add to the pattern.

ring spokes first photographed by NASA’s Voyager 2 spacecraft in 1981.

NASA’s Cassini spacecraft also discovered Spoke during its 13-year mission that ended in 2017.

Hubble continues to observe Saturn every year as its spokes come and go. This cycle is captured by Hubble’s Outer Planet Atmospheric Legacy (OPAL) program, which was launched nearly a decade ago to annually monitor weather changes on all four gas giants.

Hubble’s clear images show that the frequency of the spokes’ appearance is seasonal, and they appeared in the OPAL data for the first time in 2021, but only on the morning side of the ring.

Long-term monitoring has shown that both the number and contrast of spokes change with Saturn’s seasons.

“We’re heading towards the Saturn equinox, when the spoke activity is expected to be at its peak, and we’re going to have a lot of activity in the coming months,” said Dr. Amy Simon, an astronomer at NASA Goddard Space Flight Center and chief scientist at the space flight center. “Over the years we will see higher frequencies and darker spokes.” opal program.

“This year, these ephemeral structures will appear on both sides of the Earth simultaneously, rotating around the giant world.”

“Although it appears small compared to Saturn, its length and width could extend beyond the diameter of Earth.”

“The leading theory is that the spokes are connected to Saturn’s strong magnetic field, and that the sun has some kind of interaction with that field that creates the spokes.”

“As we approach Saturn’s vernal equinox, Saturn and its rings tilt less away from the Sun.”

“In this configuration, the solar wind could hit Saturn’s massive magnetic field even harder, promoting spoke formation.”

“Planetary scientists believe that the electrostatic forces generated by this interaction cause the dust and ice to float above the ring, forming the spokes, but even after decades, no theory has been able to fully predict the formation of the spokes. I won’t.”

“Continuing Hubble observations may ultimately help solve the mystery.”

Source: www.sci.news

Ancient migration revealed in Balkan genome

An international research team has unraveled the complex genomic history of the Balkans since Roman times, revealing a mix of Anatolian and Slavic influences. The study combines ancient DNA analysis with historical and archaeological data to show how migration and Roman imperial policies have shaped the genetic makeup of the modern-day Balkan population.

Credit: SciTechDaily.com

Interdisciplinary research reveals the genomic history of the Balkans, highlighting the significant impact of Anatolian and Slavic migrations during and after the Roman Empire. This study highlights a shared demographic history across the Balkans.

An interdisciplinary study led by Spain’s Institute of Evolutionary Biology (a joint center between Spain’s National Research Council and Pompeu Fabra University), the University of Belgrade in Serbia, the University of Western Ontario in Canada, and Harvard University in the United States. We reconstruct the genomic history of the Balkans during the first millennium of the Common Era, a time and place of major demographic, cultural, and linguistic changes.

The research team recovered and analyzed whole-genome data from 146 ancient humans excavated primarily in Serbia and Croatia. More than a third of these came from the Roman border area at the huge ruins of Viminacium in Serbia. The data were jointly analyzed. the rest of the Balkans and neighboring areas.

Works published in magazines cellhighlights the cosmopolitanism of the Roman frontier and the long-term effects of migration that accompanied the collapse of Roman rule, including the arrival of Slavic-speaking peoples.archaeological DNA It has become clear that, despite being divided by nation-state boundaries, the populations of the Balkans have been shaped by common demographic processes.

Reconstruction of the amphitheater at the ruins of Viminacium. Credit: Boris Hammer

During the Roman Empire, there was a large influx of people from the east into the Balkans, much of it from the Eastern Mediterranean and even from East Africa.

After Rome occupied the Balkans, this border area became a crossroads that would eventually lead to 26 Roman emperors. Among them was Constantine the Great, who founded the city of Constantinople and moved the capital of his empire to the eastern Balkans.

The researchers’ analysis of ancient DNA shows that people of Anatolian descent made a significant demographic contribution during Roman rule, leaving a long-term genetic imprint on the Balkans. This ancestral migration is very similar to what happened in the megacity of Rome itself, the original core of the empire, in previous studies, but it is noteworthy that this also happened on the periphery of the Roman Empire. .

and so on…

Source: scitechdaily.com

The origins of social behavior revealed in new research

A new study from Cornell University reveals that the visual system, not just chemoreceptors, has a major influence on the social behavior of male fruit flies. The study found that enhanced visual input can override normal social inhibition, and suggests similar mechanisms in the human brain, particularly related to conditions such as autism and schizophrenia. It has meaning in understanding.

Drosophila males typically exhibit antisocial behavior toward other males and prefer to identify females through chemoreceptors. However, recent research by Cornell University biologists shows that the fruit fly visual system plays an important role in social interactions.

The findings provide new insights into the potential roots of a variety of human social behaviors, including those associated with conditions such as bipolar disorder and autism.

This paper recently current biology.

Visual system and social behavior

many seed Many animals use vision to regulate social behavior, but the underlying mechanisms remain largely unknown. In Drosophila, vision is thought to be used explicitly to detect and follow movement rather than to regulate social behavior, but researchers have found that this may not be the case. .

“In our study, hyperactivation of the visual system overcomes the inhibition produced by chemical signals emitted by male flies, telling other males, ‘Okay, I know, I’m another male, don’t interfere. ”’ said senior author Nirey Yapisi, assistant professor of neurobiology and behavior. “Surprisingly, visual enhancement in the brain somehow overrides chemosensory inhibition and attracts male flies to other males.”

Researchers found that changing GABARAP/GABA;a Receptor signaling in visual feedback neurons in the male brain influenced social inhibition in flies. When GABARAP is knocked down in the visual system, males unexpectedly exhibit increased courtship behavior towards other males.

Researchers discovered that genes similar to those in the human brain control visual neurons in fruit flies. Decreased GABA signaling in the human brain is associated with traits of social withdrawal in conditions such as autism and schizophrenia.

“Our results provide a promising avenue to investigate how these proteins regulate social behavior in the mammalian brain and their potential contribution to human mental state.” said lead author Dr. Yuta Mabuchi. ’23.

Reference: “Visual feedback neurons fine-tune Drosophila male courtship through GABA-mediated inhibition”, Yuta Mabuchi, Xinyue Cui, Lily Xie, Haein Kim, Tianxing Jiang, Nilay Yapici, September 2023 5 Day, current biology.

DOI: 10.1016/j.cub.2023.08.034

Source: scitechdaily.com