|Immune Cells Make Appendix 'Silent Hero' of Digestive Health|
Medicine » Gut, Bacteria »
Walter and Eliza Hall Institute − New research shows a network of immune cells helps the appendix to play a pivotal role in maintaining the health of the digestive system, supporting the theory that the appendix isn't a vestigial -- or redundant -- organ.
|USGS Projects Large Loss of Alaska Permafrost by 2100|
Nature » Permafrost, Carbon »
United States Geological Survey − Using statistically modeled maps drawn from satellite data and other sources, U.S. Geological Survey scientists have projected that the near-surface permafrost that presently underlies 38 percent of boreal and arctic Alaska would be reduced by 16 to 24 percent by the end of the 21st century under widely accepted climate scenarios. Permafrost declines are more likely in central Alaska than northern Alaska.
|Procreation Trumps Survival - Even on a Cellular Level|
Biology » Dbigh1, Bioimaging »
University of Southern California − A newly discovered biological mechanism channels a mother's available energy - in the form of fat - straight to the reproductive system during stressful times, protecting future offspring at the cost of the mother's health. USC's Sean Curran observed the phenomenon in the worm species C. elegans, but the cellular mechanisms associated with it also exist in humans, raising the possibility that we may share this trait as well.
|Study Suggests Bees Aren't the Be All And End All for Crop Pollination|
Biology » Bees, Bee »
University of Queensland − Farmers who used pesticides that spared bees but sacrificed killed other insects might be ignoring important sources of crop pollination, according to an Australian-led international scientific study. University of Queensland plant ecologist Dr Margie Mayfield said many crops --including mangoes, custard apples, kiwi fruit, coffee and canola --depended on non-bee insect pollinators such as flies, butterflies, moths, beetles, wasps, ants, and thrips.
|Not All Canadians Feeling the Heat of Climate Change|
Economics » Energy, Utilities »
University of Montreal − While Canadian Prime Minister Justin Trudeau is in Paris hammering out the details of the global fight against climate change, a new study out of the University of Montreal and the Trottier Energy Institute shows that Canadian attitudes are somewhat ambivalent. The report, entitled, "Feeling the Heat? The Paradox of Public Opinion and Climate Change Policy in Canada: Toward a New Research Agenda" examines public perceptions of this complex policy problem. "Though a majority see evidence of a global warming trend, few feel
|Latino Youth Who Feel Discriminated Against Are More Depressed, Less Likely to Help Others|
Psychology » Discrimination, Grollman »
University of Missouri-Columbia − COLUMBIA, Mo. - Recent conversations in the United States have centered on discrimination issues; yet, little is known about how discrimination affects youths' mental health and their willingness to help others. Now, University of Missouri researchers found Latino immigrant youth who reported feeling discriminated against had more depressive symptoms and were less likely to perform altruistic behaviors six months and a year after experiencing discrimination.
|Study Offers Insights to How Ovarian Cancer Grows - And Potential to Stop It|
Medicine » Cells, Stem »
University of Michigan Health System − ANN ARBOR, Mich. -- Can any cancer cell form another tumor, or is it only select cancer stem cells that give rise to new cancer cells? The answer, a new study finds, is both.
|Brook Trout Study Identifies Top Climate Change Pressure Factor|
Nature » Trout, Fish »
University of Massachusetts at Amherst − AMHERST, Mass. - Results from a 15-year study of factors affecting population levels of Eastern brook trout in the face of climate change show that high summer air temperatures have a large influence, in particular on the smallest fry and eggs, which are most important to wild trout abundance in streams.
|UofL Scientists Identify Critical Pathway to Improve Muscle Repair|
Medicine » Muscle, Stem »
University of Louisville − LOUISVILLE, Ky. - Researchers at the University of Louisville have discovered a mechanism involved in skeletal muscle repair that may enable clinicians to boost the effectiveness of adult stem cell therapies for diseases such as muscular dystrophy. The research, published today in the Journal of Clinical Investigation, describes the role of TNF receptor-associated factor 6 (TRAF6), an adaptor protein and E3 ubiquitin ligase, in ensuring the vitality of stem cells that regenerate muscle tissue.
|University of Illinois' Researchers Chart 'Fitness Landscape' to Fight Hep C Virus|
Biology » Hepatitis, Virus »
University of Illinois College of Engineering − Borrowing from several statistical science models, an interdisciplinary team of researchers from the University of Illinois at Urbana-Champaign has developed a novel computational approach for massively accelerating the search for a hepatitis C vaccine.
|Climate Change Likely to Increase Black Carbon Input to the Arctic Ocean|
Nature » Black, Carbon »
University of Georgia − Savannah, Ga. - University of Georgia Skidaway Institute of Oceanography scientist Aron Stubbins led a team of researchers to determine the levels of black carbon in Arctic rivers and found that the input of black carbon to the Arctic Ocean is likely to increase with global warming. The results of their study were recently published in the journal Frontiers in Earth Science.
|Study: with Climate Change, Malaria Risk in Africa Shifts, Grows|
Nature » Malaria, Caiman »
University of Florida − A larger portion of Africa is currently at high risk for malaria transmission than previously predicted, according to a new University of Florida mapping study. Under future climate regimes, the area where the disease can be transmitted most easily will shrink, but the total transmission zone will expand and move into new territory, according to the study, which appears in the current issue of the journal Vector-Borne and Zoonotic Diseases.
|Climate Can Grind Mountains Faster Than They Can Be Rebuilt|
Nature » Sediment, Erosion »
University of Florida − Researchers for the first time have attempted to measure all the material leaving and entering a mountain range over more than a million years and discovered that erosion caused by glaciation during ice ages can, in the right circumstances, wear down mountains faster than plate tectonics can build them.
|Schizophrenia-associated Genetic Variants Affect Gene Regulation in the Developing Brain|
Medicine » Schizophrenia, Genetic »
University of Exeter − An international research collaboration has shed new light on how DNA sequence variation can influence gene activity in the developing human brain.
|New Study Reveals What's Behind a Tarantula's Blue Hue|
Biology » Pollen, Ovule »
University of California - San Diego − Scientists recently discovered that tiny, multilayer nanostructures inside a tarantula's hair are responsible for its vibrant color. The science behind how these hair-raising spiders developed their blue hue may lead to new ways to improve computer or TV screens using biomimicry.
|Newly Evolved, Uniquely Human Gene Variants Protect Older Adults from Cognitive Decline|
Medicine » Volunteering, Mini-Strokes »
University of California - San Diego − Many human gene variants have evolved specifically to protect older adults against neurodegenerative and cardiovascular diseases, thus preserving their contributions to society, report University of California, San Diego School of Medicine researchers in the November 30 issue of Proceedings of the National Academy of Sciences.
|Missing Link Found Between Turbulence in Collapsing Star And Hypernova, Gamma-ray Burst|
Space » Magnetic, Field »
University of California - Berkeley − A supercomputer simulation of a mere 10 milliseconds in the collapse of a massive star into a neutron star proves that these catastrophic events, often called hypernovae, can generate the enormous magnetic fields needed to explode the star and fire off bursts of gamma rays visible halfway across the universe.
|Discovery of an Embryonic Switch for Cancer Stem Cell Generation|
Medicine » Cml, Stem »
University of California - San Diego − An international team of scientists, headed by researchers at UC San Diego School of Medicine and UC San Diego Moores Cancer Center, report that decreases in a specific group of proteins trigger changes in the cancer microenvironment that accelerate growth and development of therapy-resistant cancer stem cells (CSCs).
|A Fine Kettle of Fish|
Biology » Fish, Fisheries »
University of California - Santa Barbara − For years, scientific literature -- as well as fisheries management and conservation efforts -- has assumed that the survival of adult fish is relatively constant through time and that most fluctuations in the number of adults come from variation in the number of young that are produced and survive to maturity.
|Rare Fossil of a Horned Dinosaur Found from 'Lost Continent'|
Biology » Dinosaurs, Laramidia »
University of Bath − A rare fossil from eastern North America of a dog-sized horned dinosaur has been identified by a scientist at the University of Bath. The fossil provides evidence of an east-west divide in North American dinosaur evolution.
|Removing Constraints on Minimum Lot Size Benefits Stock Exchanges And Investors|
Economics » Trading, Mtu »
University of Bath − Stock exchanges that remove constraints on their minimum lot size or Minimum Trading Unit (MTU) increase retail trader participation and reduce transaction costs, according to new research from the University of Bath's School of Management.
|Simulating the Jet Streams And Anticyclones of Jupiter And Saturn|
Space » Saturn, Cassini »
University of Alberta − A University of Alberta researcher has successfully generated 3D simulations of deep jet streams and storms on Jupiter and Saturn, helping to satiate our eternal quest for knowledge of planetary dynamics. The results facilitate a deeper understanding of planetary weather and provide clues to the dynamics of Earth's weather patterns evidenced in jet streams and ocean currents.
|On the Road to Paris: Forest Service Scientists Improve US Forest Carbon Accounting|
Nature » Forest, Forests »
USDA Forest Service - Northern Research Station − SAINT PAUL, Minn. (Nov. 30, 2015): Scientists with the USDA Forest Service have developed a new approach to forest carbon accounting that will result in a more accurate picture of how much carbon is sequestered in forests - the planet's greatest terrestrial carbon sink - and the ramifications of changes in land use, wildfire and invasive insects on carbon sequestration.
|Fish Could Have Emotions And Consciousness|
Biology » Fish, Opah »
Universitat Autonoma de Barcelona − Researchers from the Universitat Autònoma de Barcelona (UAB), together with scientists from the universities of Stirling and Bristol (United Kingdom), have for the first time observed an increase in body temperature of between two and four degrees in zebrafish, when these are subjected to stressful situations. This phenomenon is known as emotional fever, as it is related to the emotions that animals feel in the face of an external stimulus and it has even been linked, not without some controversy, with their consciousness.
|Waters Are More Polluted Than Tests Say|
Biology » Invasions, Rewilding »
Technical University of Munich (TUM) − Bodies of water are "sinks", and thereby bind contaminants particularly well. If even slightly toxic concentrations in water are to be detected, the growth and swimming behavior of small crustaceans, mini-snails and copepods should be used for ecotoxicological assessments. This was the conclusion of a scientist from the TUM, who carried out a number of studies on the subject in cooperation with the University of California in Davis. She also confirmed that it is more informative to test several substances in parallel on
|Red Clover Genome to Help Restore Sustainable Farming|
Biology » Crop, Bean »
The Genome Analysis Centre − The Genome Analysis Centre (TGAC) in collaboration with IBERS, has sequenced and assembled the DNA of red clover to help breeders improve the beneficial traits of this important forage crop. The genome is published in Scientific Reports, a journal from the Nature publishing group.
|TSRI Scientists Find Protein 'Talks' to Wrong Partners in Cystic Fibrosis|
Biology » Probes, Proteins »
Scripps Research Institute − LA JOLLA, CA - November 30, 2015 - Scientists at The Scripps Research Institute (TSRI) have found evidence that a mutant protein responsible for most cases of cystic fibrosis is so busy "talking" to the wrong cellular neighbors that it cannot function normally and is prematurely degraded. By removing this chatter, researchers partially restored the protein's normal function. The findings suggest that therapies could one day treat the root cause of cystic fibrosis, not just the symptoms.
|Vital Statistics Data Can Help Fill Gap About Prescription Opioid-related Deaths|
Medicine » Prescription, Heroin »
St. Michael's Hospital − TORONTO, Nov. 30, 2015--A new study indicates that Statistics Canada data could be used to estimate the number of prescription opioid-related deaths in Canada to aid in national surveillance of this important public health issue by provincial and national public health agencies.
|Liquid Foam: Plastic, Elastic And Fluid|
Nature » Borehole, Fluids »
Springer − What differentiates complex fluids from mere fluids? What makes them unique is that they are neither solid nor liquid. Among such complex fluids are foams. They are used as a model to understand the mechanisms underlying complex fluids flow. Now, a team of French physicists has gained new insights into predicting how complex fluids react under stretching conditions due to the interplay between elasticity, plasticity and flow. These findings were recently published in EPJ E by Benjamin Dollet and Claire Bocher from the
|Asserting the Freedom of Navigation: Does the US Go Too Far?|
Economics » Countries, Western »
SAGE − Freedom of navigation operational assertions (FONAs) are assertive operations carried out mainly by the U.S. Navy when other nations impose what the U.S. considers excessive restrictions on the freedom of navigation anywhere in the world. Sent by the Pentagon through naval ships or aircrafts, FONAs demonstrate that the U.S. will not accept such restrictions and it is only in special areas that they require higher approval. In a new article in Armed Forces & Society, researcher Amitai Etzioni discusses the dual nature of
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