Tag #Science

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abcnews.go.com

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Jan 15, 19:10

Ancient DNA Reveals Matrilocal Society in Pre-Roman Britain

Genetic analysis of a late Iron Age cemetery in Dorset, England (100 B.C. – 200 A.D.) shows that two-thirds of the individuals shared a single maternal lineage, suggesting a matrilocal society where women remained in their birth communities while men joined their wives' families, challenging previou...

Ancient DNA Reveals Matrilocal Society in Pre-Roman Britain

Genetic analysis of a late Iron Age cemetery in Dorset, England (100 B.C. – 200 A.D.) shows that two-thirds of the individuals shared a single maternal lineage, suggesting a matrilocal society where women remained in their birth communities while men joined their wives' families, challenging previou...

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Gender Equality

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What does the genetic evidence from the Dorset cemetery reveal about the social structure of Celtic Britain before the Roman invasion?

A new genetic study of a late Iron Age cemetery in Dorset, England, reveals that two-thirds of the individuals shared a single maternal lineage, indicating a matrilocal social structure where women remained in their birth communities while men came from elsewhere. This challenges previous understandings of European prehistory, where patrilocality was more common.

dailymail.co.uk

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Jan 14, 01:10

Antarctica's Volcanoes Speed Ice Sheet Melt, Threatening Catastrophic Sea Level Rise

A study reveals a feedback loop in West Antarctica: climate change-driven ice melt increases volcanic activity, which further accelerates melting, potentially causing a catastrophic 190-foot sea level rise by 2300 if the ice sheet collapses completely.

Antarctica's Volcanoes Speed Ice Sheet Melt, Threatening Catastrophic Sea Level Rise

A study reveals a feedback loop in West Antarctica: climate change-driven ice melt increases volcanic activity, which further accelerates melting, potentially causing a catastrophic 190-foot sea level rise by 2300 if the ice sheet collapses completely.

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Climate Action

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What is the critical feedback loop impacting the stability of the West Antarctic Ice Sheet and its potential consequences for global sea levels?

Over 100 volcanoes lie beneath West Antarctica's ice sheet, a region highly vulnerable to collapse. As climate change melts the ice, it triggers increased volcanic activity, creating a feedback loop that accelerates melting. This is because reduced ice mass allows magma chambers to expand, increasing eruption frequency and generating more heat, thus melting more ice.

dailymail.co.uk

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Jan 14, 04:05

Australia's 1896 Heatwave: A Deadly Reminder of Extreme Heat

A 24-day heatwave in 1896 Australia killed 437 people, exceeding current heatwave intensity despite recent record-breaking temperatures across the country; temperatures reached 48.9°C in Bourke, NSW, overwhelming hospitals and causing mass evacuations.

Australia's 1896 Heatwave: A Deadly Reminder of Extreme Heat

A 24-day heatwave in 1896 Australia killed 437 people, exceeding current heatwave intensity despite recent record-breaking temperatures across the country; temperatures reached 48.9°C in Bourke, NSW, overwhelming hospitals and causing mass evacuations.

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Good Health and Well-being

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What factors contributed to the severity of the 1896 heatwave and its impact on the Australian population?

The 1896 heatwave highlights Australia's vulnerability to extreme heat, exacerbated by factors such as lack of widespread air conditioning. Current heatwaves, while severe, haven't reached the intensity or duration of the 1896 event, but still pose significant health risks. Comparing historical and current events reveals the ongoing impact of climate change.

theglobeandmail.com

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Jan 14, 01:10

Neuralink's Brain Implants Show Promise, but Safety Concerns Remain

Elon Musk's Neuralink has implanted its brain-computer interface in three people, with two showing restored functionality; the company plans to expand trials, yet safety and regulatory hurdles remain.

Neuralink's Brain Implants Show Promise, but Safety Concerns Remain

Elon Musk's Neuralink has implanted its brain-computer interface in three people, with two showing restored functionality; the company plans to expand trials, yet safety and regulatory hurdles remain.

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What are the immediate implications of Neuralink's progress in human brain-computer interface technology?

Neuralink, Elon Musk's brain-computer interface company, has implanted its device in three people, with two showing ability to play video games and use design software. The company plans to implant 20-30 more this year, marking significant progress in the field but also highlighting the high-risk, high-reward nature of the technology.

dailymail.co.uk

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Jan 14, 01:10

4,000-Year-Old Tombs Unearthed at Saqqara Reveal Cultural Fusion

A joint Egyptian-Japanese archaeological team discovered four ancient tombs at Saqqara, Egypt, containing artifacts from the late second/early third dynasty and the New Kingdom, including human remains, pottery, and items reflecting a blend of Egyptian and Greco-Roman cultures, significantly expandi...

4,000-Year-Old Tombs Unearthed at Saqqara Reveal Cultural Fusion

A joint Egyptian-Japanese archaeological team discovered four ancient tombs at Saqqara, Egypt, containing artifacts from the late second/early third dynasty and the New Kingdom, including human remains, pottery, and items reflecting a blend of Egyptian and Greco-Roman cultures, significantly expandi...

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No Poverty

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How do the artifacts found in the tombs illuminate the cultural interactions and power dynamics between ancient Egypt and other civilizations?

The discovery connects to broader patterns of cultural exchange and syncretism in ancient Egypt. The artifacts found in the tombs show a clear fusion of Egyptian and Greco-Roman styles, reflecting the historical interactions and power dynamics between these civilizations. This is particularly evident in the presence of items depicting both Egyptian and Greek goddesses.

elpais.com

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Jan 14, 01:11

Laser Technology Unveils Intricate Tattoos on Ancient Peruvian Mummies

Analysis of Chincay mummies (1222-1282 AD) from Peru using laser-stimulated fluorescence (LSF) revealed exquisitely detailed tattoos with lines thinner than those achievable with modern techniques, suggesting the practice was widespread regardless of social status.

Laser Technology Unveils Intricate Tattoos on Ancient Peruvian Mummies

Analysis of Chincay mummies (1222-1282 AD) from Peru using laser-stimulated fluorescence (LSF) revealed exquisitely detailed tattoos with lines thinner than those achievable with modern techniques, suggesting the practice was widespread regardless of social status.

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No Poverty

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How does the application of LSF in this study compare to its use in other fields, and what are the broader implications for the study of preserved organic materials?

The discovery challenges the assumption that pre-Columbian tattoos were solely for elites. Preliminary analysis suggests Chancay tattoos were widespread, irrespective of social status, highlighting the practice's significance in daily life and culture. The use of LSF, previously applied to dinosaur fossils, shows its potential for studying preserved organic materials.

faz.net

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Jan 15, 01:07

Pop Culture Dominates Scientific Naming of New Species

An analysis of 18,000 newly described species reveals a disproportionate number named after Star Wars characters (40), Discworld characters (49), and other pop culture figures, compared to literary figures like Shakespeare (17) or Nabokov (25), highlighting popular culture's impact on scientific nam...

Pop Culture Dominates Scientific Naming of New Species

An analysis of 18,000 newly described species reveals a disproportionate number named after Star Wars characters (40), Discworld characters (49), and other pop culture figures, compared to literary figures like Shakespeare (17) or Nabokov (25), highlighting popular culture's impact on scientific nam...

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What is the most striking pattern revealed by the analysis of newly discovered species' names, and what does it signify about current cultural trends?

Around 18,000 new plant and animal species are described annually, necessitating creative naming conventions. A noticeable trend is the disproportionate influence of popular culture, with 40 species named after Star Wars characters and 49 after Discworld characters, exceeding the number inspired by Shakespeare (17) or Nabokov (25).

china.org.cn

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Jan 14, 01:11

Climate Volatility Fuels Devastating Los Angeles Wildfires

A new study links the devastating wildfires in Los Angeles County to increased hydroclimate volatility caused by climate change, highlighting a 31-66 percent rise in subseasonal "whiplash" events since the mid-20th century, resulting in the Palisades Fire burning 95.75 square kilometers and the Eato...

Climate Volatility Fuels Devastating Los Angeles Wildfires

A new study links the devastating wildfires in Los Angeles County to increased hydroclimate volatility caused by climate change, highlighting a 31-66 percent rise in subseasonal "whiplash" events since the mid-20th century, resulting in the Palisades Fire burning 95.75 square kilometers and the Eato...

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Climate Action

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What is the direct impact of increased hydroclimate volatility on the severity and spread of the Los Angeles wildfires?

A new study published in Nature Reviews Earth & Environment reveals that global warming intensifies both wet and dry extremes, creating conditions ideal for devastating wildfires, as seen in the current Los Angeles blazes. The study shows a 31 percent to 66 percent increase in subseasonal "whiplash" events since the mid-20th century, characterized by rapid transitions between extremely wet and dry conditions. This volatility leads to abundant vegetation growth followed by rapid drying, creating highly combustible fuel for wildfires.

fr.euronews.com

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Jan 14, 16:12

Nobel Laureates Warn of Looming Global Food Crisis

More than 150 Nobel and World Food Prize laureates warned of a looming global food crisis in an open letter, citing 700 million people facing food insecurity and urging investment in transformative food production and distribution methods.

Nobel Laureates Warn of Looming Global Food Crisis

More than 150 Nobel and World Food Prize laureates warned of a looming global food crisis in an open letter, citing 700 million people facing food insecurity and urging investment in transformative food production and distribution methods.

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Zero Hunger

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How will climate change and population growth exacerbate the global food crisis, and what specific impacts are predicted on staple crops such as maize?

The letter emphasizes the urgent need for transformative efforts, including improving photosynthesis in staple crops, developing fertilizer-independent crops, and extending the shelf life of fruits and vegetables. This is to address climate change's impact on food production and population growth.

theglobeandmail.com

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Jan 14, 01:10

First Locally Acquired H5N1 Case in Canada Raises Concerns

A 13-year-old British Columbia resident contracted H5N1 avian flu, requiring intensive care, but recovered; this case, the first locally acquired infection in Canada, shares a mutation with a fatal U.S. case, raising concerns about potential human-to-human transmission despite no evidence of such tr...

First Locally Acquired H5N1 Case in Canada Raises Concerns

A 13-year-old British Columbia resident contracted H5N1 avian flu, requiring intensive care, but recovered; this case, the first locally acquired infection in Canada, shares a mutation with a fatal U.S. case, raising concerns about potential human-to-human transmission despite no evidence of such tr...

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Good Health and Well-being

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What are the immediate implications of the first locally acquired H5N1 case in Canada, regarding the severity of the illness and potential for further spread?

A 13-year-old in British Columbia experienced a severe case of H5N1 avian flu, requiring extensive treatment, including intubation and plasma exchange. The patient's recovery and discharge highlight the potential severity of human H5N1 infections, but there's no evidence of human-to-human transmission in this case.

english.elpais.com

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Jan 14, 01:10

Late Eating Linked to Higher Blood Glucose Levels, Regardless of Diet or Weight

A new study reveals that eating more than 45% of daily calories after 5:00 p.m. is associated with higher blood glucose levels, regardless of weight or diet, highlighting the importance of chrononutrition and suggesting potential implications for personalized dietary recommendations.

Late Eating Linked to Higher Blood Glucose Levels, Regardless of Diet or Weight

A new study reveals that eating more than 45% of daily calories after 5:00 p.m. is associated with higher blood glucose levels, regardless of weight or diet, highlighting the importance of chrononutrition and suggesting potential implications for personalized dietary recommendations.

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How does late eating disrupt circadian rhythms, and what is the physiological mechanism linking meal timing to impaired glucose tolerance?

The study challenges the previous assumption that the correlation between late eating and poor health is solely due to unhealthy lifestyle choices. By demonstrating a direct link between meal timing and glucose levels independent of other factors, it highlights the importance of chrononutrition in maintaining metabolic health. This finding emphasizes the need for dietary guidance that considers both the 'what' and 'when' of eating.

elpais.com

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Jan 14, 01:11

New Brown Fat Burning Pathway Discovered, Offers Potential Obesity Treatment

Researchers discovered a new pathway for brown fat burning in mice, controlled by the MCJ protein; inactivating MCJ in obese mice caused weight loss and increased heat production, highlighting MCJ as a potential obesity treatment target.

New Brown Fat Burning Pathway Discovered, Offers Potential Obesity Treatment

Researchers discovered a new pathway for brown fat burning in mice, controlled by the MCJ protein; inactivating MCJ in obese mice caused weight loss and increased heat production, highlighting MCJ as a potential obesity treatment target.

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Good Health and Well-being

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What is the primary mechanism discovered for brown fat burning, and what are its immediate implications for obesity treatment?

Researchers at the CNIO and CNIC discovered a new pathway for brown fat burning in mice, involving a protein called MCJ. Inactivating MCJ in obese mice led to weight loss and increased heat generation, suggesting MCJ as a potential target for obesity treatments. This finding is significant because obesity affects 650 million people globally.

Showing 4,237 to 4,248 of 5,442 results