ניווט נגישות
כתבות אחרונות מאתר 'Phys'
Phys

Locked in stone for 210 million years, this newly identified crocodile cousin was built to crush larger prey‎

On a fateful day 210 million years ago, two crocodile cousins about the size of jackals stood side-by-side amid the low ferns of a humid riverbank that would one day become northern New Mexico. One of the crocs, Hesperosuchus agilis, had a long snout, large back legs, and smaller, thinner arms. A land dweller, Hesperosuchus was speedy and liked to hunt for food near rivers and streams.

19:57
תפריט כתבה
Phys

Plant-based diets cut climate impact by more than half, randomized clinical trial shows‎

As climate change accelerates and global temperatures continue to rise, a new randomized clinical trial provides compelling evidence that one of the most powerful climate solutions may be on our plates. A study published in Current Developments in Nutrition shows that adopting a low-fat vegan diet reduces diet-related greenhouse gas emissions by 55% and cumulative energy demand by 44%—dramatic reductions achieved in just 12 weeks.

19:40
תפריט כתבה
Phys

Deadly feline coronavirus variant has been present in the US for more than a decade‎

Cornell researchers have discovered that a lethal variant of feline coronavirus, previously thought to be limited to a devastating 2023 outbreak in Cyprus that killed thousands of cats, has in fact appeared in the United States, raising concerns about future large-scale outbreaks in vulnerable cat populations.

18:05
תפריט כתבה
Phys

Hidden plant molecules show up to 25 times stronger activity against Ebola and COVID-19‎

Scientists at the Université de Montréal's affiliated Montreal Clinical Research Institute (IRCM) have identified a new family of natural molecules with strong antiviral activity, notably against the Ebola virus and SARS-CoV-2, the virus responsible for COVID-19. The discovery comes at a time of renewed fears of the rapid emergence of new pandemics, and highlights the ongoing search at the IRCM for novel antiviral agents derived from natural sources.

18:05
תפריט כתבה
Phys

Flooded fields across Midwest spur push for farm-tested solutions‎

Larry Dallas's farm in Central Illinois's Douglas County is as flat as it gets. That's a good thing for planting straight rows and maneuvering farm equipment in the field, but there's a major downside, too. "Heavier rain is hard for us to deal with because of the poorly drained soils and the lack of any roll to the ground. It's hard for the water to get away when the rain starts," Dallas said. "We have installed a lot of drainage tile trying to mitigate that."

17:06
תפריט כתבה
Phys

Immigrants help address the US eldercare shortage, analysis shows‎

Good caregivers are often in short supply, but after the COVID-19 pandemic hit the U.S. in early 2020, staff levels at nursing homes dropped by 10%. What was a simple personnel shortage has moved closer to being a nursing-care crisis.

16:31
תפריט כתבה
Phys

Saturday Citations: In spaaa-aaace!‎

We're focusing on space news this week, but we did cover the usual amount of local news down here in Earth's gravity well: A new Tokamak reactor regime sustained stable plasma fusion for one full minute. An anomaly in global sea level rise turns out to be due to deep ocean heating. And Chinese researchers report that they found microplastics in every part of both healthy and diseased human brains.

16:01
תפריט כתבה
Phys

Bees can detect viruses in food sources, but don't necessarily avoid them‎

The ability to detect viruses and other harmful pathogens is highly advantageous for animals, as it can guide their behavior and prevent them from illness, and—in severe cases—death. When it comes to species that live in organized groups, such as bees, ants and some other insects, it can be even more crucial, as it can prevent the spread of pathogens across entire colonies.

15:14
תפריט כתבה
Phys

Disentangling the many factors at play within exposure science‎

Take a brief walk outside and you're likely to encounter a wide range of things that could influence your health—the sunlight beaming on your face, a plume of exhaust, or even noise from a car driving by. Each exposure carries with it the possibility of affecting your physical well-being.

15:14
תפריט כתבה
Phys

Q&A: What AI actually does in diffusion models for drug design‎

In the search for new drugs, artificial intelligence in the form of diffusion models is being used in drug design. What exactly does AI do in this context? Dr. Andrea Mastropietro and Prof. Dr. Jürgen Bajorath from Life Science Informatics at the University of Bonn and the Lamarr Institute for Machine Learning and Artificial Intelligence have published an article in Cell Reports Physical Science on this topic. Below, they answer questions about this method.

15:14
תפריט כתבה
דיווח על כתבה זו הסתרת כתבות מאתר זה המשך קריאה באתר המקור