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ScienceDaily: Top News |
| Future snowmelt could have costly consequences on infrastructure Posted: 07 Dec 2021 02:45 PM PST Researchers took a closer look at previous studies with snowmelt predictions, and because geographical areas respond differently to climate change, they found future snowmelt incidences could vary greatly by the late 21st century. Snowmelt could decrease over the continental U.S. and southern Canada but increase in Alaska and northern Canada resulting in larger flooding vulnerabilities and possibly causing major societal and economic consequences including costly infrastructure failures. |
| Plants struggle to keep pace with climate change in human-dominated landscapes Posted: 07 Dec 2021 12:26 PM PST Researchers found that changes in plant phenology are lagging behind rising temperatures across a majority of the Northern Hemisphere, particularly in the most human-dominated landscapes, like crop lands. |
| Anthrax arms race helped Europeans evolve against disease Posted: 07 Dec 2021 12:26 PM PST New research has revealed how humans evolved greater resistance against anthrax multiple times during history: when they developed a diet of more ruminants, and when agricultural practices took hold. |
| Melting glaciers may produce thousands of kilometers of new Pacific salmon habitat Posted: 07 Dec 2021 12:26 PM PST Retreating glaciers in the Pacific mountains of western North America could produce around 6,150 kilometers of new Pacific salmon habitat by the year 2100, according to a new study. |
| Changes in the blood, not the heart, may underlie cardiac thrombosis in COVID-19 patients Posted: 07 Dec 2021 12:25 PM PST Treatment targeting immune-regulating neutrophil activation may reduce pathological thrombosis in COVID-19 patients, researchers report. |
| A daily dose of yogurt could be the go-to food to manage high blood pressure Posted: 07 Dec 2021 12:25 PM PST Whether it's a dollop on your morning cereal or a simple snack on the go, a daily dose of yogurt could be the next go-to food for people with high blood pressure, according to new research. |
| Avoiding blackouts with clean, renewable energy Posted: 07 Dec 2021 12:25 PM PST Study analyzes grid stability under a scenario in which wind, water and solar energy sources plus storage power 100% of U.S. energy needs for all purposes. It finds that blackouts can be avoided with short-duration batteries while lowering energy costs, creating jobs, improving people's health, and reducing land requirements. |
| Gas bubbles in rock pores – a nursery for life on Early Earth Posted: 07 Dec 2021 12:25 PM PST Researchers create compelling scenario for the evolution of membraneless microdroplets as the origin of life. |
| Researchers say it’s time to clean up the US Clean Water Act Posted: 07 Dec 2021 12:25 PM PST While the Clean Water Act successfully regulated many obvious causes of pollution, such as the dumping of wastewater, it's done less to limit more diffuse types of pollution, such as 'nonpoint source pollution' that includes agricultural runoff from fields and urban stormwater from buildings, paved surfaces and yards -- says a new study. |
| Denisovans or Homo sapiens: Who were the first to settle (permanently) on the Tibetan Plateau? Posted: 07 Dec 2021 12:25 PM PST A new paper by archaeologists at the University of California, Davis, highlights that our extinct cousins, the Denisovans, reached the "roof of the world" about 160,000 years ago -- 120,000 years earlier than previous estimates for our species -- and even contributed to our adaptation to high altitude. |
| Unprecedented three-dimensional X-ray microscope methodology to image plants at cellular resolution Posted: 07 Dec 2021 07:20 AM PST Measuring plant phenotypes, a term used to describe the observable characteristics of an organism, is a critical aspect of studying and improving economically important crops. Phenotypes central to the breeding process include traits like kernel number in corn, seed size in wheat, or fruit color in grape. These features are visible to the naked human eye but are in fact driven by microscopic molecular and cellular processes in the plant. Using three-dimensional (3D) imaging is a recent innovation in the plant biology sector to capture phenotypes on the 'whole-plant' scale: from miniscule cells and organelles in the roots, up to the leaves and flowers. However, current 3D imaging processes are limited by time-consuming sample preparation and by imaging depth, usually reaching only a few layers of cells within a plant tissue. |
| Parents can influence children's choice and success in STEM major Posted: 07 Dec 2021 06:38 AM PST If one of your parents majored in a STEM (science, technology, engineering or math) field, there's a better chance you'll also major and persist in a STEM field, according to a new study. |
| Stem cell study paves way for manufacturing cultured meat Posted: 07 Dec 2021 06:24 AM PST Scientists have for the first time obtained stem cells from livestock that grow under chemically defined conditions, paving the way for manufacturing cell cultured meat and breeding enhanced livestock. |
| Engineers discover what makes a tree-killing fungus so hard to put down Posted: 07 Dec 2021 06:24 AM PST Armillaria ostoyae is a gnarly parasitic fungus with long black tentacles that spread out and attack vegetation. Not much was known about what makes fungus so hard to kill -- until now. A team of researchers has been studying the defense mechanism of the tree fungus to better understand what makes it so hearty. |
| Researchers develop an antibody-drug delivery system Posted: 07 Dec 2021 06:24 AM PST Researchers have developed the first metal-organic framework (MOFs) antibody-drug delivery system that has the potential to fast-track potent new therapies for cancer, cardiovascular and autoimmune diseases. |
| Primates vs cobras: How our last common ancestor built venom resistance Posted: 07 Dec 2021 06:24 AM PST The last common ancestor of chimps, gorillas and humans developed an increased resistance toward cobra venom, according to new research. |
| Self-administered cognition test predicts early signs of dementia sooner Posted: 06 Dec 2021 07:01 PM PST Many people experience forgetfulness as they age, but it's often difficult to tell if these memory issues are a normal part of aging or a sign of something more serious. A new study finds that a simple, self-administered test can identify the early, subtle signs of dementia sooner than the most commonly used office-based standard cognitive test. |
| Posted: 06 Dec 2021 07:01 PM PST As many as a half of all drinkers underestimated how drunk they were, judging themselves still safe to drive despite having exceeded the legal driving limit. |
| Neurotoxin from a black widow spider examined Posted: 06 Dec 2021 07:00 PM PST Although many people lose their nerve and panic when they see a spider, only very few of the creatures are actually dangerous. The black widow, however, is a force to be reckoned with: it catches its prey by means of nerve poison -- to be precise, latrotoxins (LaTXs). Researchers have now investigated the substance -- also with a view to medical applications. |
| Protein variant identified that renders chemotherapy ineffective in gastric cancer Posted: 06 Dec 2021 08:30 AM PST A new protein variant underlies the ability of gastric cancers to resist an otherwise effective family of chemotherapy drugs, according to a study by a multidisciplinary team. The results suggest a treatment strategy that could improve the prognoses of many patients with cancer. |
| Researchers identify sildenafil as candidate drug for Alzheimer’s disease Posted: 06 Dec 2021 08:30 AM PST A new study has identified sildenafil -- an FDA-approved therapy for erectile dysfunction (Viagra) and pulmonary hypertension (Ravatio) -- as a promising drug candidate to help prevent and treat Alzheimer's disease. Researchers determined that sildenafil is associated with 69% reduced incidence of Alzheimer's. |
| Posted: 06 Dec 2021 08:29 AM PST Researchers compile a dataset of over 200,000 plant species worldwide to demonstrate the extent to which species extinctions and non-native invasive plants reorganize plant communities in the Anthropocene revealing biotic homogenization results from human activity whether intentional or unintentional. |
| Common Arctic finches are all the same species Posted: 06 Dec 2021 06:17 AM PST New research could ruffle some feathers in the birding world. It finds that Redpolls, a bird found in the Arctic that will sometimes come to the Southern latitudes during the winter and can be hard to differentiate, aren't actually multiple species, genetically speaking. Instead, the three recognized species are all just one with a 'supergene' that controls differences in plumage color and morphology, making them look different. |
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