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Muddied waters: Sinking organics alter seafloor records Posted: 20 Jul 2021 03:58 PM PDT The remains of microscopic plankton blooms in near-shore ocean environments slowly sink to the seafloor, setting off processes that forever alter an important record of Earth's history, according to research from geoscientists. |
Microbially produced fibers: Stronger than steel, tougher than Kevlar Posted: 20 Jul 2021 03:58 PM PDT A new fiber, made by genetically engineered bacteria is stronger than steel and tougher than Kevlar. |
New evidence of menopause in killer whales Posted: 20 Jul 2021 12:12 PM PDT Scientists have found new evidence of menopause in killer whales - raising fascinating questions about how and why it evolved. |
Microbes play critical role boosting vigor of hybrid corn, research shows Posted: 20 Jul 2021 12:08 PM PDT A news study shows soil microbes boost 'hybrid vigor,' a well-known phenomenon where crosses between inbred lines of corn and other crops produce offspring that outperform their parents in yield, drought resistance and other desirable qualities. |
Using snakes to monitor Fukushima radiation Posted: 20 Jul 2021 12:07 PM PDT Ten years after one of the largest nuclear accidents in history spewed radioactive contamination over the landscape in Fukushima, Japan, a new study has shown that radioactive contamination in the Fukushima Exclusion Zone can be measured through its resident snakes. |
DNA assay aids in identifying and protecting North American wolves, coyotes Posted: 20 Jul 2021 10:52 AM PDT Forensics specialists can use a commercial assay targeting mitochondrial DNA to accurately discriminate between wolf, coyote and dog species. The genetic information could aid authorities in prosecuting hunting jurisdiction violations and preserving protected species. |
Posted: 20 Jul 2021 09:23 AM PDT To better understand how familiarity impacts social fishes, a group of research scientists studied this idea using schooling coral reef fish. |
Enzyme-based plastics recycling is more energy efficient, better for environment, researchers show Posted: 20 Jul 2021 09:23 AM PDT BOTTLE Consortium effort develops model that finds sizeable energy and carbon-saving benefits for recycling PET, a common plastic used in bottles, clothing, carpet. |
15,000-year-old viruses discovered in Tibetan glacier ice Posted: 20 Jul 2021 09:05 AM PDT Scientists who study glacier ice have found viruses nearly 15,000 years old in two ice samples taken from the Tibetan Plateau in China. Most of those viruses, which survived because they had remained frozen, are unlike any viruses that have been cataloged to date. |
Is bacterial acidity a key to tackle antimicrobial resistance? Posted: 20 Jul 2021 08:44 AM PDT Decreasing bacterial acidity could help reduce antimicrobial resistance by eliminating bacteria that can survive being treated with antibiotics. |
Rapidly diversifying birds in Southeast Asia offer new insights into evolution Posted: 20 Jul 2021 08:44 AM PDT New findings from zoologists working with birds in Southeast Asia are shining fresh light on the connections between animal behaviour, geology, and evolution - underlining that species can diversify surprisingly quickly under certain conditions. Sulawesi Babblers (Pellorneum celebense), shy birds that live in the undergrowth on Indonesian islands, have begun to diverge quite significantly despite being separated geographically for mere tens of thousands of years. |
Young forests are preferred summer vacation destinations for bats Posted: 20 Jul 2021 08:44 AM PDT A number of bat species native to the Northeast are highly active in newly created forest spaces, foraging for food at higher rates than is typical of mature forests. |
Climate change threatens food security of many countries dependent on fish Posted: 20 Jul 2021 08:44 AM PDT Analyses by an international team from the UK and Canada and led by scientists reveal that climate change is the most pervasive threat to the supply of essential micronutrients from marine fish catches, and threatens the supply of vital micronutrients from fisheries in 40 per cent of countries. |
Gene expression mechanism may have immunity, cancer implications Posted: 20 Jul 2021 08:43 AM PDT Alternative polyadenylation (APA) is an RNA processing mechanism that regulates gene expression by generating different ends on RNA transcripts of the same gene. Scientists describe an important function of APA in allowing certain mRNAs to reach specific sites of protein synthesis that can determine the destination of mRNAs within the cell. |
Biodiversity, climate change and the fate of coral reefs Posted: 20 Jul 2021 08:43 AM PDT An international group of researchers representing thousands of coral scientists across the globe is issuing recommendations for new commitments and actions by the world's policymakers to protect and restore coral reefs. |
Tropical fly study shows that a mother's age and diet influences offspring health Posted: 20 Jul 2021 08:43 AM PDT The female tsetse fly, which gives birth to adult-sized live young, produce weaker offspring as they get older, and when they feed on poor quality blood. |
Mycoplasma mobile moves into overdrive: Twin motor modified from ATP synthase discovered Posted: 20 Jul 2021 08:43 AM PDT Using electron microscopy and high-speed atomic force microscopy, researchers show the internal molecular motor behind the gliding mechanism for Mycoplasma mobile to consist of two ATP synthase-like molecules. Sharing a similar structure with ATP synthase suggests a common evolutionary ancestor. This synthase-like ATPase is challenging the origin of cells and proteins themselves. |
Copper transporter potential new treatment target for cardiovascular disease Posted: 20 Jul 2021 08:43 AM PDT An internal transporter that enables us to use the copper we consume in foods like shellfish and nuts to enable a host of vital body functions also has the essential role of protecting the receptor that enables us to grow new blood vessels when ours become diseased, scientists report. |
Untrained beer drinkers can taste different barley genotypes Posted: 20 Jul 2021 08:43 AM PDT When it comes to craft beer, the flavor doesn't have to be all in the hops. As a panel of amateur beer tasters at Washington State University recently demonstrated, malted barley, the number one ingredient in beer besides water, can have a range of desirable flavors too. |
Removal of barred owls slows decline of iconic spotted owls in Pacific Northwest Posted: 20 Jul 2021 08:43 AM PDT A 17-year study in Oregon, Washington and California found that removal of invasive barred owls arrested the population decline of the northern spotted owl, a native species threatened by invading barred owls and the loss of old-forest habitats. |
No IgA leads to intestinal inflammation in mice Posted: 20 Jul 2021 08:43 AM PDT Researchers have found that immunoglobulin A (IgA) deficiency leads to disruption of the ileal gut microbiota and increased inflammation in the ileum in mice. This suggests that IgA plays an important role in mucosal homeostasis by regulating the intestinal microbiota and protecting against mucosal inflammation, especially in the ileum |
Revealing the secrets of cell competition Posted: 20 Jul 2021 08:43 AM PDT Cellular competition is a crucial quality control process that ensures that the development of an organism relies on healthy cells. Researchers revealed the secrets underlying cell competition and what features can pre-determine whether a cell will survive or not. Defects in energy production are critical in making cells vulnerable to elimination. |
The climate impact of wild pigs greater than a million cars, study finds Posted: 19 Jul 2021 12:35 PM PDT By uprooting carbon trapped in soil, wild pigs are releasing around 4.9 million metric tonnes of carbon dioxide annually across the globe, the equivalent of 1.1 million cars, according to new research. |
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