Новости за 09.03.2022

A new study rolls back the curtain on half a century of evidence detailing the impact of climate change on more than 60 different bird species.  It found that half of all changes to key physical and behavioral bird characteristics since the 1960s can be linked to climate change.

Using super-resolution microscopy, scientists uncovered new details about the location of viral molecules in a cell after coronavirus infection.

A collaborative study confirms a potential new switching mechanism for a proposed generation of ultra-low energy topological electronics. Based on novel, quantum nanoribbons terminating on 'zigzag' edges, such devices would switch from non-conducting to conducting state, whereby electrical current could flow along topological edge states without wasted dissipation of energy.

The partially fossilized remains of a giant extinct crocodilian that could have been ritualistically beheaded explain how modern crocodilian species may have evolved. Discovered in southern China, the new species is estimated to have been 6 meters long and the top predator of its environment. Human migration into southern China and subsequent hunting might have driven it to extinction only a few hundred years ago. The discovery may impact knowledge of ancient Chinese civilization.

People who suffer from persistent postural-perceptual dizziness (PPPD) experience unsteadiness, non-spinning vertigo and dizziness. These symptoms are exacerbated by movement, upright posture, and visual stimuli. In a new study, scientists have tried to find out if these exacerbating factors are present in the period before PPPD is diagnosed. They found that patients developing PPPD are likely to have them early on after the onset of balance disorder symptoms.

A team led by scientists has come a step closer to uncovering the purpose of a distinctive set of modifications found at the beginning of messenger RNA which have long remained a fundamental mystery in molecular biology.

Green turtle numbers continue to rise on a group of islands where the species has now been protected for more than 50 years, new research shows.

New research shows how, after it rains, microbes in desert soil convert one form of pollution into another -- laughing gas.

Tests using a preclinical model of Alport syndrome suggests that turning off a cell signalling protein may significantly prolong life by preventing kidney scarring.

New research shows that Mindfulness-Based Cognitive Therapy (MBCT) can help promote self-kindness in people with a history of depression, thereby putting their bodies in a state of safety and relaxation.

Each of our cells contains about 40 million proteins that together perform all the tasks the cell needs to survive. For a smooth action, the right proteins must be concentrated in specific amounts, at a specific time and at a specific location. However, establishing such a delicate distribution requires an extremely precise process, happening at tiny spatial resolutions that standard cell biology tools are often unable to detect. To understand how this mechanism works, researchers have developed... Читать дальше...

Researchers have examined what factors drive hair variation in a wild population of lemurs known as Indriidae. Specifically, the researchers aimed to assess the impacts of climate, body size and color vision on hair evolution.

A new research article features one major challenge overcome through a remarkably simple idea, opening the door to expanded use of PCMs for energy-efficient heating and cooling.

Researchers have successfully leveraged an FDA-approved drug to halt growth of tumors driven by mutations in the RAS gene, which are famously difficult to treat and account for about one in four cancer deaths.

New research has shown how catchment restoration -- through the management of alien tree infestation in the mountains of the southwestern Cape -- could have lessened the impact of climate change on low river flows during the Cape Town 'Day Zero' drought.

Researchers have identified a potential way to battle the health effects of obesity and type 2 diabetes in women after discovering an important factor that could determine how their bodies use and store fat.

A preclinical study led by a neuroscientist shows that dysregulated kappa-opioid receptors (KORs) in the brain's medial prefrontal cortex region (part of the frontal lobe) contribute to working memory deficits in severe alcohol dependence. The researchers discovered that an antagonist compound used to block KORs alleviated these working memory deficits and may help restore 'normal' executive function needed to make better decisions about alcohol consumption.

How can Einstein's theory of gravity be unified with quantum mechanics? It is a challenge that could give us deep insights into phenomena such as black holes and the birth of the universe. Now, a new article presents results that cast new light on important challenges in understanding quantum gravity.

A new study confirms that pangolins confiscated from the illegal wildlife trade in Viet Nam host SARS-CoV-2 related coronaviruses.

An analysis of nearly 600,000 adults in the U.S. found people with bipolar disorder, schizophrenia or schizoaffective disorder had up to double the estimated cardiovascular risk levels than those without such illnesses, even at younger ages. The study focused on adults diagnosed with one of those three serious mental illnesses, who were not hospitalized or living in a mental health treatment center and estimated their 10-year and 30-year cardiovascular risk. Earlier identification and management... Читать дальше...

A new study reveals that two indigenous groups in the Bolivian Amazon have among the lowest rates of dementia in the world. An international team of researchers found among older Tsimane and Moseten people, only about 1% suffer from dementia. In contrast, 11% of people age 65 and older living in the United States have dementia, according to the Alzheimer's Association.

In the wake of the Great Depression, the federally sponsored Home Owners' Loan Corporation drew maps of neighborhoods in U.S. cities that characterized their desirability for mortgage lending. Many neighborhoods with Black and immigrant communities received the worst grade, restricting access to federally backed loans and favorable mortgage terms. Now, researchers have found that these 'redlined' areas have higher levels of air pollution 80 years later.

Amyloid beta, a protein known to build-up in the brains of Alzheimer's patients, also helps skin cancer cells thrive when they spread to the brain, a new study finds.

Antarctic fish have adapted over millennia to survive in the freezing temperatures of the Southern Ocean. However, in doing so, they have lost their ability to grow at rates seen in their warmer water cousins, even when they are now held at the same water temperature, a new study suggests.