Новости за 27.03.2024

What makes us human? According to neurobiologists it is our neocortex. This outer layer of the brain is rich in neurons and lets us do abstract thinking, create art, and speak complex languages. An international team has identified a new factor that might have contributed to neocortex expansion in humans.

New research suggests people who are scheduled for certain medical procedures should stop taking popular weight loss drugs in the days or weeks prior to avoid complications.

Researchers have discovered a safer and more efficient technique for testing new drugs while they are in development.

Researchers found that the double-lobed object, which is officially named Kuiper Belt Object 486958 Arrokoth and resembles a snowman, may have ancient ices stored deep within it from when the object first formed billions of years ago.

Researchers are enhancing immunotherapy effects against malignant tumors by developing and validating patent-ending poly (lactic-co-glycolic acid), or PLGA, nanoparticles modified with adenosine triphosphate, or ATP.

Researchers say they have discovered that the protein puromycin-sensitive aminopeptidase (NPEPPS) plays a role in regulating response to platinum chemotherapy in patients with bladder cancer.

People who can't visualize an image in their mind's eye are less likely to remember the details of important past personal events or to recognize faces, according to a review of nearly ten years of research. People who cannot bring to mind visual imagery are also less likely to experience imagery of other kinds, like imagining music, according to new research by the academic who first discovered the phenomenon.

Floods affect more people worldwide than any other natural hazard, causing enormous damage that is expected to increase in a warming world. However, people and decision-makers in vulnerable regions are often unwilling to prepare for exceptionally severe events because they are difficult to imagine and beyond their experience.

The couple that drinks together might live longer together, too, says a University of Michigan researcher.

Researchers have discovered the first species pollinated by sap beetles in the genus Pandanus, a group of palm-like plants native to the tropics and subtropics of Africa and Eurasia. The discovery overturned the long-held belief that these plants were pollinated by wind. The researchers also found that fragrant screw pines' male and female flowers produced heat at night stably, making them the first such species in the family Pandanaceae.

An analysis of how brains with different forms of autism develop has revealed common underlying mechanisms that may respond to existing medications.

Engineers have developed a novel method for manufacturing CAR T cells, one that takes just 24 hours and requires only one step, thanks to the use of lipid nanoparticles (LNPs), the potent delivery vehicles that played a critical role in the Moderna and Pfizer-BioNTech COVID-19 vaccines.

Scientists captured images showing the development of turbulence as a Coronal Mass Ejection (CME) interacted with the ambient solar wind in the circumsolar space.

In a remarkable discovery, whole milk powder manufactured in New Zealand in 1907 and transported to Antarctica with explorers seeking the South Pole was unveiled after more than a century. The find has allowed dairy researchers to answer the question: Is the milk we enjoy today different from the milk consumed in previous generations? Now, a new comparative study has peered back in time to demonstrate that -- despite advancements in selective breeding and changes to farm practices -- milk of the... Читать дальше...

Those with aging immune systems struggle to fight off novel viruses and respond weakly to vaccination. Researchers were able to revitalize the immune system in mice.

Scientists have uncovered a key step in the wound healing process that becomes disabled in diseases like diabetes and aging, contributing to a global healthcare cost of managing poorly healing wounds exceeding $250 billion a year. Importantly, the research reveals a molecule involved in the healing of tissues that -- when injected into animal models -- leads to a drastic acceleration of wound closure, up to 2.5 times faster, and 1.6 times more muscle regeneration.

The Antarctic Circumpolar Current plays an important part in global overturning circulation, the exchange of heat and CO2 between the ocean and atmosphere, and the stability of Antarctica's ice sheets. An international research team has now used sediments taken from the South Pacific to reconstruct the flow speed in the last 5.3 million years. Their data show that during glacial periods, the current slowed; during interglacials, it accelerated. Consequently, if the current global warming intensifies in the future... Читать дальше...

To treat cancer, you have to inhibit cancer cells. Right? Researchers did just the opposite. They achieved surprising results by overstimulating cancer cells in the lab and then hitting them at their weak spot: stress.

Dedicated memory tests on smartphones enable the detection of 'mild cognitive impairment', a condition that may indicate Alzheimer's disease, with high accuracy.

Astronomers have measured the speed of fast-moving jets in space, crucial to star formation and the distribution of elements needed for life. The jets of matter, expelled by stars deemed 'cosmic cannibals', were measured to travel at over one-third of the speed of light -- thanks to a groundbreaking new experiment.

The queens in colonies of social insects, such as ants, bees, and wasps, are considered the veritable embodiment of specialization in the animal kingdom. The common perception is that the queen's only task is to lay eggs -- and that this attribute is an inherent trait, not influenced by external factors. In contrast, recent research has demonstrated that in certain ant colonies the social environment can play a crucial role in shaping the behavioral specialization of the queens.

Researchers have come up with a new, more accurate method for detecting in ticks the emerging Powassan virus, which can cause life-threatening neuroinvasive disease, including encephalitis and meningitis.

A new analysis involving over 13,000 people has found changes to blood vessels in the brain that can increase the risk of stroke and dementia are common in people with a range of heart conditions, regardless of whether they have experienced a stroke.

A new study found that employed adults with greater job flexibility and higher job security were less likely to experience serious psychological distress or anxiety. Greater job flexibility and higher job security were also associated with fewer days on average worked while feeling ill.

While Wyoming is home to some of North America's most abundant populations of pronghorn that have largely been stable in recent years, a new analysis shows that many herds are experiencing long-term declines in fawn production.