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Phys.org

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Daily science news on research developments, technological breakthroughs and the latest scientific innovations.

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Phys.org™ is a leading web-based science, research and technology news service which covers a full range of topics. These include physics, earth science, medicine, nanotechnology, electronics, space, biology, chemistry, computer sciences, engineering, mathematics and other sciences and technologies. Launched in 2004, Phys.org’s readership has grown steadily to include 5 million scientists, researchers, and engineers every month. Phys.org offers some of the most comprehensive coverage of sci-tech developments world-wide.

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    A recent study published in Physical Review Letters introduces a novel cosmological model suggesting dark matter production during the pre-Big Bang inflationary phase. Researchers from Texas propose that dark matter was created through small interactions in a hot, energetic environment, challenging existing theories. This model, termed Warm Inflation via Ultraviolet Freeze-In (WIFI), posits that dark matter formed during cosmic inflation, preceding the Big Bang. While the WIFI model remains unconfirmed, upcoming cosmic microwave background experiments may provide insights. This research opens new avenues for understanding particle production in the early universe, potentially reshaping our comprehension of cosmological phenomena.

    Cosmological model proposes dark matter production during pre-Big Bang inflation

    Cosmological model proposes dark matter production during pre-Big Bang inflation

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    Researchers at the Max Planck Institute for Solid State Research have developed a strategy to control quantum properties in vanadate perovskite YVO3 by leveraging atomic displacements. By depositing epitaxial films on different facets of a substrate, they observed distinct spin-orbital ordering patterns. This approach could enable precise engineering of quantum materials, offering potential applications in spintronics and other technologies. Their findings, published in Nature Physics, highlight the sensitivity of perovskite properties to structural changes, providing a new avenue for material design. Future research will explore the impact of these displacements on other perovskites.

    Promising strategy leverages atomic displacements to control quantum properties of a vanadate perovskite

    Promising strategy leverages atomic displacements to control quantum properties of a vanadate perovskite

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    Recent research by the China National Silk Museum and the Sichuan Research Institute of Cultural Relics and Archaeology has uncovered evidence of silk use in Bronze Age sacrificial rituals at the Sanxingdui site in Sichuan, China. Utilizing advanced techniques such as immunoaffinity column enrichment and proteomics, researchers identified mineralized silk residues on artifacts, confirming silk's role in religious ceremonies. This discovery not only highlights the cultural significance of silk in ancient China but also provides insights into early silk farming practices. These findings underscore the technological advancements of the Shu civilization and the enduring legacy of silk production in the region.

    Evidence of silk found in Bronze Age sacrificial pits

    Evidence of silk found in Bronze Age sacrificial pits

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    University of Georgia statisticians have developed a novel quantum algorithm that significantly advances single-cell analysis, as detailed in their recent publication in the Journal of the American Statistical Association. This algorithm effectively analyzes CITE-seq data, overcoming challenges faced by traditional methods in handling vast datasets of RNA and protein expression. The research, validated using IBM's quantum computer, highlights the potential of quantum computing in disease research by efficiently identifying key molecular markers. This breakthrough underscores the growing intersection of quantum computing and computational biology, offering promising applications in understanding health and disease.

    Novel quantum computing algorithm enhances single-cell analysis

    Novel quantum computing algorithm enhances single-cell analysis

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    A research team at TU Wien, led by Professor Dominik Eder, has developed a novel approach to enhance the stability and conductivity of zeolitic imidazolate frameworks (ZIFs) for electrocatalytic water splitting, as published in Nature Communications. By integrating two organic ligands, the team significantly improved ZIF stability and conductivity, extending durability from minutes to at least a day and increasing the oxygen evolution reaction rate tenfold. This advancement in hybrid catalyst design holds promise for sustainable hydrogen production and other applications in catalysis and solar energy conversion, marking a step forward in the development of advanced materials for clean energy technologies.

    New hybrid catalyst developed for clean oxygen production

    New hybrid catalyst developed for clean oxygen production

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    A recent study by Killian McLoughlin and colleagues, published in Science, reveals that social media posts containing misinformation evoke more moral outrage than those with trustworthy information, facilitating the spread of misinformation. The study, which analyzed U.S. data from Facebook and Twitter, found that users often share outrage-inducing misinformation without verifying its accuracy. This behavior is partly driven by the desire to signal moral positions or group affiliations. Additionally, social media algorithms may amplify such content due to its engaging nature, further complicating efforts to curb misinformation online.

    Our outrage over social media posts helps misinformation spread, study shows

    Our outrage over social media posts helps misinformation spread, study shows

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    Recent research from the Ikmi Group at EMBL Heidelberg reveals that the starlet sea anemone (Nematostella vectensis) can regenerate its entire body shape after injury, not just the lost parts. Unlike other regenerating animals, the anemone reshapes its entire form, even adjusting uninjured parts. The study, published in Developmental Cell, used spatial transcriptomics to uncover that injuries trigger molecular changes throughout the body. This process involves metalloproteases, enzymes that help realign tissues. The findings highlight the importance of maintaining shape in regeneration and open new avenues for understanding how organisms sense and restore their form.

    Sea anemone study shows how animals restore 'shape' following major injury

    Sea anemone study shows how animals restore 'shape' following major injury

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    Recent research by the University of Aberdeen and National Museums Scotland has uncovered intriguing insights into the dietary habits of ancient bears in Scotland. Analysis of fossils from the Inchnadamph "Bone Caves" suggests a diet predominantly composed of marine fish, unlike the typical meat and plant-based diet of brown bears. This discovery raises questions about the possible presence of polar bears in Scotland during the Last Ice Age. Ongoing DNA analysis aims to determine whether these bears were brown bears with unique diets, polar bears, or hybrids, contributing to our understanding of bear ancestry and ecology.

    Fishy fossil find points to possible polar bear ancestry for Scottish bears

    Fishy fossil find points to possible polar bear ancestry for Scottish bears

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    Recent research led by the University of Vienna and Harvard University has provided the most comprehensive Early Neolithic genetic data from Central Europe. Published in Nature Human Behaviour, the study reveals that the first farmers in this region, responsible for agriculture's expansion 8,000 years ago, exhibited no signs of social stratification. The Linear Pottery Culture (LBK) expanded rapidly, with genetic links found across vast distances. Findings indicate that communities in Slovakia and Hungary shared similar diets and burial practices, suggesting social equality. However, the study also challenges previous assumptions about the violent collapse of the LBK culture, highlighting complex social dynamics.

    Early Neolithic genetic data suggest that central Europe's first farmers lived in equality

    Early Neolithic genetic data suggest that central Europe's first farmers lived in equality

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    Recent research led by Professor Christopher J. Bae from the University of Hawaiʻi suggests the discovery of a potential new human species, Homo juluensis. This study, published in Nature Communications, aims to clarify the complex fossil record of ancient human-like species in Asia, particularly during the late Middle and early Late Pleistocene. By reorganizing fossil evidence, Bae and his team propose that Homo juluensis may include the enigmatic Denisovans. This research enhances our understanding of human evolution in Asia, providing new insights into the diverse groups that once inhabited the region. Co-author Xiujie Wu contributed significantly to this groundbreaking work.

    Homo juluensis: Possible new ancient human species uncovered by researchers

    Homo juluensis: Possible new ancient human species uncovered by researchers

    phys.org

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