Science News

  • This crater was formed by a raindrop—and one of the world’s tiniest avalanches
    Researchers study physics of raindrop craters ... read more
    Source: Latest News from Science MagazineVeröffentlicht am 23-03-2017
  • Molecule kills elderly cells, reduces signs of aging in mice
    Researchers unveil safer approach to eliminate worn-out cells in our bodies ... read more
    Source: Latest News from Science MagazineVeröffentlicht am 23-03-2017
  • Researchers find another immune system link science said didn’t exist
    A part of the body thought to be disconnected from the immune system actually interacts with it, report investigators, and that discovery helps explain cases of male infertility, certain autoimmune diseases and even the failure of cancer vaccines. ... read more
    Source: Science dailyVeröffentlicht am 23-03-2017
  • When people prepare for conflict, dominant leaders take the stage
    One popular theory holds that dominant leaders are supported by those who fear new situations and threats. However, new research shows that support for dominant leaders is not born of fear, but of a wish to handle the country's problems by aggressive means. ... read more
    Source: Science dailyVeröffentlicht am 23-03-2017
  • Strong interaction between herbivores and plants
    Important findings have been revealed on the interaction between nutrient availability and the diversity of consumer species in freshwater environments. A better understanding of this interaction will contribute to developing possibilities to maintain biodiversity in all kinds of ecosystems. ... read more
    Source: Science dailyVeröffentlicht am 23-03-2017
  • In search for unseen dark matter, physicists turn to shadow realm
    With WIMP searches failing, U.S. Energy Department mulls $10 million probe of dark sector ... read more
    Source: Latest News from Science MagazineVeröffentlicht am 23-03-2017
  • Hand-held X-ray sources
    Electronic oscillations in graphene could make a tabletop — or even handheld — source of X-rays a reality, report researchers. ... read more
    Source: Science dailyVeröffentlicht am 23-03-2017
  • A tough coat for silicon
    Supercritical carbon dioxide delivers protective molecules to semiconductor surfaces, report researchers in a new article. ... read more
    Source: Science dailyVeröffentlicht am 23-03-2017
  • Giant salamanders, geckos and olms: Vanishing species diversity in Siberia
    Scientists have studied the development of the amphibian and reptile fauna in Western Siberia during the past twelve million years. In their study, they demonstrate that the species diversity of both groups of animals was noticeably higher in the past than it is today. Among others, for the first time ... read more
    Source: Science dailyVeröffentlicht am 23-03-2017
  • Blood fatty acids reveal your child’s diet
    Eating lots of sugary candy may strain the liver, alter the body’s fatty acid metabolism and increase the risk of cardiometabolic diseases already in childhood. Children’s blood fatty acid composition reflects their diet – but luckily this composition can be influenced by lifestyle interventions, say researchers. ... read more
    Source: Science dailyVeröffentlicht am 23-03-2017
  • New portal to unveil the dark sector of the universe
    Once upon a time, the Universe was just a hot soup of particles. In those days, together with visible particles, other particles to us hidden or dark might have formed. Billions of years later scientists catalogued 17 types of visible particles, with the most recent one being the Higgs boson, ... read more
    Source: Science dailyVeröffentlicht am 23-03-2017
  • Male hormone plays key role in ovarian development
    The male “androgen” hormone is an important element in the ovarian development of female chicken embryos, more so than in the development of male testes, scientists have discovered. ... read more
    Source: Science dailyVeröffentlicht am 23-03-2017
  • Spiritual retreats change feel-good chemical systems in the brain
    More Americans than ever are turning to spiritual, meditative and religious retreats as a way to reset their daily life and enhance well-being. Now, researchers show there are changes in the dopamine and serotonin systems in the brains of retreat participants. ... read more
    Source: Science dailyVeröffentlicht am 23-03-2017
  • Immune study in chickens reveals key hurdle for Campylobacter vaccine effort
    The immune response of farmed chickens does not develop fast enough to fight off Campylobacter during their short lifespan, new research has found. The findings have important implications in the challenge towards developing a poultry vaccine for the bug, which is the UK's leading cause of food poisoning. ... read more
    Source: Science dailyVeröffentlicht am 23-03-2017
  • Dramatic evolution within human genome may have been caused by malaria parasite
    Researchers find evidence of swift spread of protective mutation in sub-Saharan Africa ... read more
    Source: Latest News from Science MagazineVeröffentlicht am 23-03-2017
  • Congenital cytomegalovirus (CMV) infection and autism continued
    I wanted to briefly talk about the paper by Francesca Garofoli and colleagues [1] on congenital cytomegalovirus (CMV) infection and autism not because it contains any novel data (see here), but because it reminds us that the potential 'pathways' to a diagnosis of autism are multiple and not necessarily 'pre-programmed' ... read more
    Source: Research-Blogging EnglishVeröffentlicht am 23-03-2017
  • Biologists find surprising variability in courtship behaviors of wolf spiders
    Studies of wolf spiders found that courtship displays help preserve genetic isolation between closely related species. Another study found that the species Gladicosa bellamyi used multi-modal communication to entice females. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Largest survey to date of patient and family experience at US children’s hospitals
    A survey of more than 17,000 parents of hospitalized children gives mixed responses about the quality of the inpatient experience at 69 US children's hospitals. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Yellow fever killing thousands of monkeys in Brazil
    In a vulnerable forest in southeastern Brazil, where the air was once thick with the guttural chatter of brown howler monkeys, there now exists silence. Yellow fever, a virus carried by mosquitoes and endemic to Africa and South America, has robbed the private, federally-protected reserve of its brown howlers in ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Biopesticide could defeat insecticide resistance in bedbugs
    A fungal biopesticide that shows promise for the control of bed bugs is highly effective even against bed-bug populations that are insecticide resistant, according to research. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Transgender college freshmen drink more, experience more blackouts, study shows
    A survey of more than 422,000 college freshmen found that students who identified as transgender were more likely than their cisgender peers to experience negative consequences from drinking, including memory blackouts, academic problems and conflicts such as arguments or physical fights. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Research questions effectiveness of translocation conservation method
    A DNA study of endangered greater prairie chickens in Illinois indicates that supplementing the dwindling population with birds from out of state did not improve genetic diversity. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Heart tissue grown on spinach leaves
    Researchers face a fundamental challenge as they seek to scale up human tissue regeneration from small lab samples to full-size tissues and organs: how to establish a vascular system that delivers blood deep into the developing tissue. Researchers have now successfully turned to plants, culturing beating human heart cells on ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Tracing aromatic molecules in the early Universe
    A molecule found in car engine exhaust fumes that is thought to have contributed to the origin of life on Earth has made astronomers heavily underestimate the amount of stars that were forming in the early Universe, a study has found. That molecule is called polycyclic aromatic hydrocarbon. On Earth ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Humans, smartphones may fail frequently to detect face morph photos
    Both humans and smartphones show a degree of error in distinguishing face morph photos from their 'real' faces on fraudulent identity cards, new research has found. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Too much structured knowledge hurts creativity, shows study
    Structure organizes human activities and help us understand the world with less effort, but it can be the killer of creativity, concludes a new study. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Optical tool monitors brain’s circulatory response to pain
    A new report demonstrates that an optical imaging tool used to monitor regional blood flow and tissue oxygenation may be used to track the brain's response to acute pain in infants, children, and adults. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • ‚Spectacular-looking‘ endangered frog species discovered in Ecuador’s cloud forests
    It's not every day someone gets to say, 'I've discovered a new species.' It's a claim that biologist Chris Funk can happily make. Funk and collaborators, who've spent years exploring the tropical climes of South America to study the region's dizzying biodiversity, have documented a new species of rainfrog they've ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Brain ‚rewires‘ itself to enhance other senses in blind people
    The brains of those who are born blind make new connections in the absence of visual information, resulting in enhanced, compensatory abilities such as a heightened sense of hearing, smell and touch, as well as cognitive functions (such as memory and language) according to a new study. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Scientists evade the Heisenberg uncertainty principle
    Researchers report the discovery of a new technique that could drastically improve the sensitivity of instruments such as magnetic resonance imagers (MRIs) and atomic clocks. The study reports a technique to bypass the Heisenberg uncertainty principle. This technique hides quantum uncertainty in atomic features not seen by the instrument, allowing ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Silence is golden: Suppressing host response to Ebola virus may help to control infection
    The Ebola virus causes a severe, often fatal illness when it infects the human body. Initially targeting cells of the immune system called macrophages, white blood cells that absorb and clear away pathogens, a new study has found a way to potentially 'silence' these Ebola virus-infected macrophages. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Lack of staffing, funds prevent marine protected areas from realizing full potential
    Marine protected areas (MPAs) are an increasingly popular strategy for protecting marine biodiversity, but a new global study demonstrates that widespread lack of personnel and funds are preventing MPAs from reaching their full potential. Only 9 percent of MPAs reported having adequate staff. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • How does spousal suicide affect bereaved spouse mentally, physically?
    People bereaved by the suicide of a spouse were at increased risk for mental and physical disorders, suicidal behavior, death and adverse social events, according to a nationwide study based on registry data conducted in Denmark. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Use of mobile app reduces number of in-person follow-up visits after surgery
    Patients who underwent ambulatory breast reconstruction and used a mobile app for follow-up care had fewer in-person visits during the first 30 days after the operation without affecting complication rates or measures of patient-reported satisfaction, according to a study. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Tiller the Hun? Farmers in Roman Empire converted to Hun lifestyle — and vice versa
    New archaeological analysis suggests people of Western Roman Empire switched between Hunnic nomadism and settled farming over a lifetime. Findings may be evidence of tribal encroachment that undermined Roman Empire during 5th century AD, contributing to its fall. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Surprising new role for lungs: Making blood
    Using video microscopy in the living mouse lung, scientists have revealed that the lungs play a previously unrecognized role in blood production. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • First mutations in human life discovered
    The earliest mutations of human life have been observed by researchers. Analyzing genomes from adult cells, the scientists could look back in time to reveal how each embryo developed. The study shows that from the two-cell stage of the human embryo, one of these cells becomes more dominant than the ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • New study shakes the roots of the dinosaur family tree
    More than a century of theory about the evolutionary history of dinosaurs has been turned on its head following the publication of new research. The work suggests that the family groupings need to be rearranged, redefined and renamed and also that dinosaurs may have originated in the northern hemisphere rather ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Brief module effective in teaching hemorrhage control basics to staff in a large workplace
    A medical team has developed a way to effectively provide a large group of people with basic knowledge and skills to locate and use bleeding control equipment to stop life-threatening bleeding in severely injured people. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Molecular ‚treasure maps‘ to help discover new materials
    Scientists have developed a new method which has the potential to revolutionise the way we search for, design and produce new materials. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Scientists identify a new way gut bacteria break down complex sugars
    New light has been shed on the functioning of human gut bacteria which could help to develop medicines in the future to improve health and well-being. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Sea ice extent sinks to record lows at both poles
    The Arctic sea ice maximum extent and Antarctic minimum extent are both record lows this year. Combined, sea ice numbers are at their lowest point since satellites began to continuously measure sea ice in 1979. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Light used to remotely control curvature of plastics
    Researchers have developed a technique that uses light to get flat, plastic sheets to curve into spheres, tubes or bowls. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Under the dead sea, warnings of dire drought
    Nearly 1,000 feet below the bed of the Dead Sea, scientists have found evidence that during past warm periods, the Mideast has suffered drought on scales never recorded by humans -- a possible warning for current times. Thick layers of crystalline salt show that rainfall plummeted to as little as ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Weight-bearing exercises promote bone formation in men
    Osteoporosis affects more than 200 million people worldwide and is a serious public health concern, according to research. Now, newly published work is the first in men to show that long-term, weight-bearing exercises decrease sclerostin, a protein made in the bone, and increase IGF-1, a hormone associated with bone growth. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Researchers help map future of precision medicine in Parkinson’s disease
    A new transformative approach to defining, studying and treating Parkinson's disease has been revealed by investigators. Rather than approaching Parkinson's disease as a single entity, the international cadre of researchers advocates targeting therapies to distinct 'nodes or clusters' of patients based on specific symptoms or molecular features of their disease. ... read more
    Source: Science dailyVeröffentlicht am 22-03-2017
  • Self-powered integrated microfluidic point-of-care low-cost enabling (SIMPLE) chip
    Portable, low-cost, and quantitative nucleic acid detection is desirable for point-of-care diagnostics; however, current polymerase chain reaction testing often requires time-consuming multiple steps and costly equipment. We report an integrated microfluidic diagnostic device capable of on-site quantitative nucleic acid detection directly from the blood without separate sample preparation steps. First, ... read more
    Source: Science Advances current issueVeröffentlicht am 22-03-2017
  • Terrestrial support of lake food webs: Synthesis reveals controls over cross-ecosystem resource use
    Widespread evidence that organic matter exported from terrestrial into aquatic ecosystems supports recipient food webs remains controversial. A pressing question is not only whether high terrestrial support is possible but also what the general conditions are under which it arises. We assemble the largest data set, to date, of the ... read more
    Source: Science Advances current issueVeröffentlicht am 22-03-2017
  • Female brain size affects the assessment of male attractiveness during mate choice
    Mate choice decisions are central in sexual selection theory aimed to understand how sexual traits evolve and their role in evolutionary diversification. We test the hypothesis that brain size and cognitive ability are important for accurate assessment of partner quality and that variation in brain size and cognitive ability underlies ... read more
    Source: Science Advances current issueVeröffentlicht am 22-03-2017
  • Canopy near-infrared reflectance and terrestrial photosynthesis
    Global estimates of terrestrial gross primary production (GPP) remain highly uncertain, despite decades of satellite measurements and intensive in situ monitoring. We report a new approach for quantifying the near-infrared reflectance of terrestrial vegetation (NIRV). NIRV provides a foundation for a new approach to estimate GPP that consistently untangles the ... read more
    Source: Science Advances current issueVeröffentlicht am 22-03-2017