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Updated: 1 hour 56 min ago

Brain cells protect muscles from wasting away

23 hours 24 min ago
Several processes in the roundworm C. elegans boost the stress response in cells, incidentally making worms resistant to a high-fat diet and extending their lifespan. Researchers have found another: cells called glia that release a hormone that boosts the unfolded protein response in the endoplasmic reticulum of the worm's cells, effectively doubling lifespan. This could lead to interventions to tune up peripheral cells, such as muscle cells, and prevent age-related deterioration in humans.

Offshore wind farms could power much of coastal China

Fri, 02/21/2020 - 22:07
If China is to meet and exceed its Paris Climate Agreement goal by 2030, it's going to need to find a way to increase its wind capacity. Researchers found that offshore wind could be a big part of the solution.

Genetics of how corn can adapt faster to new climates

Fri, 02/21/2020 - 22:07
Researchers have decoded the genetic map for how maize from tropical environments can be adapted to the temperate US summer growing season. They believe that if they can expand the genetic base by using exotic varieties, they might be able to counter stresses such as emerging diseases and drought associated with growing corn in a changing climate.

Surgeons successfully treat brain aneurysms using a robot

Fri, 02/21/2020 - 22:07
A robot was used to treat brain aneurysms for the first time. The robotic system could eventually allow remote surgery, enabling surgeons to treat strokes from afar.

Changing what heart cells eat could help them regenerate

Fri, 02/21/2020 - 22:07
Switching what the powerhouses of heart cells consume for energy could help the heart regenerate when cells die.

Fossilized wing gives clues about Labrador's biodiversity during the Cretaceous

Fri, 02/21/2020 - 19:55
A fossilized insect wing discovered in an abandoned mine in Labrador has led palaeontologists to identify a new hairy cicada species that lived around 100 million years ago.

Shaping the rings of molecules

Fri, 02/21/2020 - 18:51
Chemists discover a natural process to control the shape of 'macrocycles,' molecules of large rings of atoms, for use in pharmaceuticals and electronics.

Why do whales migrate? They return to the tropics to shed their skin

Fri, 02/21/2020 - 18:51
Whales undertake some of the longest migrations on earth, often swimming many thousands of miles, over many months, to breed in the tropics. The question is why? Scientists propose that whales that forage in polar waters migrate to low latitudes to maintain healthy skin.

Frozen bird turns out to be 46,000-year-old horned lark

Fri, 02/21/2020 - 16:21
Scientists have recovered DNA from a well-preserved horned lark found in Siberian permafrost. The results can contribute to explaining the evolution of sub species, as well as how the mammoth steppe transformed into tundra, forest and steppe biomes at the end of the last Ice Age.

A little good is good enough -- excuses and 'indulgence effects' in consumption

Fri, 02/21/2020 - 16:21
Ecofriendly materials, produced under good work conditions -- convincing arguments for most of us. But how do consumers really weigh compliance with such ethical standards? Not as much as they think: Researchers used an example from textile industry to demonstrate that customers unconsciously use a single ethical aspect as an excuse for less moral behavior regarding other aspects. They report about these 'indulgence effects' and their significance in a recent article.

Antidepressant harms baby neurons in lab-grown 'mini-brains'

Fri, 02/21/2020 - 14:48
Researchers have demonstrated the use of stem-cell-derived 'mini-brains' to detect harmful side effects of a common drug on the developing brain. Mini-brains are miniature human brain models, developed with human cells and barely visible to the human eye, whose cellular mechanisms mimic those of the developing human brain.

Drug cocktail holds promise for spinal injuries

Fri, 02/21/2020 - 14:48
Scientists have discovered a combination of two commonly available drugs that could help the body heal spinal fractures.

Want to live longer? Stay in school, study suggests

Fri, 02/21/2020 - 01:34
A multi-institution study has attempted to tease out the relative impact of two variables most often linked to life expectancy -- race and education -- by combing through data about 5,114 black and white individuals in four US cities.

New studies explore how knowledge drives action in climate change decision-making

Fri, 02/21/2020 - 00:27
In several new studies, researchers explore the importance of learning and knowledge in environmental decision-making and the different ways in which scientific knowledge can become more relevant and useful for societies.

For 'blade runners' taller doesn't necessarily mean faster

Fri, 02/21/2020 - 00:27
The governing body for the Paralympics recently lowered the allowable height for sprinters who use prosthetic legs, or blades, during competition. The rules are based on the assumption that the taller you are the faster you run. But a new study has found otherwise.

A better pregnancy test for whales

Thu, 02/20/2020 - 21:49
To determine whale pregnancy, researchers have relied on visual cues or hormone tests of blubber collected via darts, but the results were often inconclusive. Research points to a weakness of previous testing and evaluation methods and provides a new hormone testing regime that offers better results.

Lower dose of newer clot-buster may be appropriate for some stroke patients

Thu, 02/20/2020 - 21:49
In a comparison of 0.25mg/kg and 0.40mg/kg doses of the newer and more convenient clot-busting medication tenecteplase, there was no advantage in increasing the dose above 0.25mg/kg in stroke patients who planned to have mechanical clot retrieval. In addition, administering tenecteplase may decrease the need for mechanical clot removal.

New drug helps to preserve brain cells for a time after stroke

Thu, 02/20/2020 - 21:49
After 50 years of research and the testing of over 1,000 drugs, there is new hope for preserving brain cells for a time after stroke. Treating acute ischemic stroke patients with an experimental neuroprotective drug, combined with a surgical procedure to remove the clot improves outcomes as shown by clinical trial results.

Physics tool helps track cancer cell diversity

Thu, 02/20/2020 - 21:49
A team took a novel, interdisciplinary approach to analyzing the behavior of breast tumor cells by employing a statistical modeling technique more commonly used in physics and economics. The team was able to demonstrate how the diversity, or heterogeneity, of cancer cells can be influenced by their chemical environment -- namely, by interactions with a specific protein, which leads to tumor growth.

Water reuse could be key for future of hydraulic fracturing

Thu, 02/20/2020 - 21:48
Enough water will come from the ground as a byproduct of oil production from unconventional reservoirs during the coming decades to theoretically counter the need to use fresh water for hydraulic fracturing operations in many of the nation's large oil-producing areas. While other industries might want to recycle some of that water for their own needs, water quality issues and the potential costs involved may be prohibitive.

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