DNA in water used to uncover genes of invasive fish
In a proof-of-principle study, researchers describe a new technique in which they analyzed environmental DNA - or eDNA - from water samples in Cayuga Lake to gather nuanced information about the presence of these invasive fish.
Wildfire smoke is more cooling on climate than computer models assume
Many of the most advanced climate models simulate smoke that is darker, or more light absorbing, than what researchers see in observations.
No-till practices in vulnerable areas significantly reduce soil erosion
Soil erosion is a major challenge in agricultural production. It affects soil quality and carries nutrient sediments that pollute waterways. While soil erosion is a naturally occurring process, agricultural activities such as conventional tilling exacerbate it. Farmers implementing no-till practices can significantly reduce soil erosion rates, a new study shows.
Higher coffee intake may be linked to lower prostate cancer risk
Drinking several cups of coffee every day may be linked to a lower risk of developing prostate cancer, suggests a pooled data analysis of the available evidence.
Neuroscientists identify brain circuit that encodes timing of events
Neuroscientists shed new light on how the timing of a memory is encoded in the hippocampus, and suggest that time and space are encoded separately.
Climate change reduces the abundance and diversity of wild bees
Wild bees are more affected by climate change than by disturbances to their habitats, according to a team of researchers. The findings suggest that addressing land-use issues alone will not be sufficient to protecting these important pollinators.
Tweaking AI software to function like a human brain improves computer's learning ability
Computer-based artificial intelligence can function more like human intelligence when programmed to use a much faster technique for learning new objects, say two neuroscientists who designed such a model that was designed to mirror human visual learning.
New humanized mouse model provides insight into immunotherapy resistance
Scientists have created an advanced humanized immune system mouse model that allows them to examine resistance to immune checkpoint blockade therapies in melanoma. It has revealed a central role for mast cells.
Why independent cultures think alike when it comes to categories: It's not in the brain
Scientists conducted an experiment in which people were asked to categorize unfamiliar shapes. Individuals and small groups created many different unique categorization systems while large groups created systems nearly identical to one another.
Scientists develop method to more efficiently isolate and identify rare T cells
Scientists have developed a technique that will enable researchers to more efficiently isolate and identify rare T cells that are capable of targeting viruses, cancer and other diseases.
Museum scientists: Prepare for next pandemic now by preserving animal specimens in natural history
Authors of a new article urge researchers who conduct host-pathogen studies to adopt vouchering practices and to collaborate with natural history museums to permanently archive host specimens, along with their tissue and microbiological samples.
New technology reveals fast and slow twitch muscle fibers respond differently to exercise
Scientists have performed the most in-depth analysis of fast and slow twitch muscle fibers and the different ways they respond to exercise. Their novel approach uses large scale protein analysis of freeze-dried muscle samples, which opens the door for new analyses of muscle samples that are located in freezers around the world.
New promising antibodies against SARS-CoV-2
Researchers have identified and further developed novel antibody fragments against the SARS coronavirus-2. These 'nanobodies' are smaller than classic antibodies penetrating the tissue better and can be produced in larger quantities. The researchers also combined the nanobodies into potentially particularly effective molecules attacking different parts of the virus simultaneously. The approach could prevent the pathogen from evading the active agent through mutations.
Low fitness linked to higher psoriasis risk later in life
Scientists have now demonstrated a connection between inferior physical fitness in young adults and elevated risk of the autoimmune disease psoriasis. For the male recruits to compulsory military training who were rated as the least fit, the risk of developing psoriasis later was 35 percent higher than for the fittest.
Making hydrogen energy with the common nickel
To resolve the energy crisis and environmental issues, research to move away from fossil fuels and convert to eco-friendly and sustainable hydrogen energy is well underway around the world. Recently, a team of researchers has proposed a way to efficiently produce hydrogen fuel via water-electrolysis using inexpensive and readily available nickel as an electrocatalyst, greenlighting the era of hydrogen economy.
Nanosheet-based electronics could be one drop away
A surprisingly simple method improves 'drop casting' fabrication of tiled nanosheets that could be used in next-generation electronic devices. All you need is a pipette and a hotplate.
Simplified COVID-19 diagnostic method to ramp up widespread testing
A simplified COVID-19 testing protocol can detect minimal quantities of the SARS-CoV-2 using samples from the nose and throat as well as saliva and may be useful in testing patients with low viral titers such as asymptomatic patients or testing individuals prior to quarantine release. The high sensitivity method can be used in laboratories with minimal molecular biology equipment and expertise, and enables several patient samples to be pooled, decreasing the number of tests required for larger populations.
Unsure how to help reverse insect declines? Scientists suggest simple ways
Entomologists' message is straightforward: We can't live without insects. They're in trouble. And there's something all of us can do to help.
Tapping the brain to boost stroke rehabilitation
Stroke survivors who had ceased to benefit from conventional rehabilitation gained clinically significant arm movement and control by using an external robotic device powered by the patients' own brains.
New treatment allows some people with spinal cord injury to regain hand and arm function
Researchers helped six Seattle-area people with spinal cord injuries regain some hand and arm mobility.
Top science news
How Far Does Wildlife Roam? Ask the ‘Internet of Animals’
An ambitious new system will track scores of species from space — shedding light, scientists hope, on the lingering mysteries of animal movement.