Новости за 05.03.2024

Researchers have designed a candidate drug that could help make pancreatic cancer, which is almost always fatal, a treatable, perhaps even curable, condition.

Researchers developed protocols for growing organoids that mimic a turtle liver, the first organoids developed for a turtle and only the second for any reptile. The discovery will aid deeper study of turtle genetics, including the cause of traits with potential medical applications for humans such as the ability to survive weeks without oxygen.

Adults who sleep only three to five hours per day are at higher risk of developing type 2 diabetes, according to a new study. Chronic sleep deprivation cannot be compensated for by healthy eating alone.

A novel screening system enables researchers to investigate sperm cell development and health at the molecular level. The new approach promises breakthroughs in male contraception and infertility treatments.

Researchers who work with tiny drug carriers known as lipid nanoparticles have developed a new type of material capable of reaching the lungs and the eyes, an important step toward genetic therapy for hereditary conditions like cystic fibrosis and inherited vision loss.

Young people have major concerns about climate change, which is having a significant impact on their lives and could have broader consequences decades into the future.

Space weather experts are urging regulators and space tourism innovators to work together to protect their passengers and crews from the risks of space weather radiation exposure.

Biosensing technology developed by engineers has made it possible to create gene test strips that rival conventional lab-based tests in quality.

Bacteria can be tricked into sending death signals to stop the growth of their slimy, protective homes that lead to deadly infections, a new study demonstrates. The discovery could someday be harnessed as an alternative to antibiotics for treating difficult infections. The researchers used the messengers, which they named death extracellular vesicles (D-EVs), to reduce growth of the bacterial communities by up to 99.99% in laboratory experiments.

Although several studies have linked smoking during pregnancy with neurodevelopmental disorders, the results of behavioral experiments in mice prenatally exposed to nicotine have been inconsistent. In a recent study, scientists from Japan developed a deep learning-based framework to automatically observe and classify mice behavior in such experiments, producing more accurate and unbiased results. They show that prenatal exposure to nicotine could increase the risk of autism spectrum- and attention deficit/hyperactivity disorders in newborns.

A globally distributed single-celled organism that occurs in harmful algal blooms has been found to exhibit an unusual organisation of photosynthesis. Researchers have taken a closer look at the unusual cell biology of the species Prorocentrum cordatum from the group of dinoflagellates. The results of their study could help to better understand the role of the species in the environment and the increased occurrence of algal blooms at higher water temperatures.

Sprinting 'like a jet plane taking off' will help produce Premier League star strikers of tomorrow, new research has revealed. A new study of Tottenham Hotspur's academy has shown that just a few words can instantly boost sprinting speed by 3 per cent over 20 meters. It would normally take weeks of targeted training to achieve such a large increase.

NASA's Juno spacecraft has directly measured charged oxygen and hydrogen molecules from the atmosphere of one of Jupiter's largest moons, Europa. These observations provide key constraints on the potential oxygenation of its subsurface ocean.

Researchers have developed a new catheter-based device that combines two powerful optical techniques to image the dangerous plaques that can build up inside the arteries that supply blood to the heart. By providing new details about plaque, the device could help clinicians and researchers improve treatments for preventing heart attacks and strokes.

Scientists recently combined satellite data, field observations and sophisticated numerical modeling to paint a picture of how 22.45 million square kilometers of the Arctic will change over the next 80 years. As expected, the overall region will be warmer and wetter, but the details -- up to 25% more runoff, 30% more subsurface runoff and a progressively drier southern Arctic, provides one of the clearest views yet of how the landscape will respond to climate change.

A new fossil, named 'Attenborough's strange bird' after naturalist and documentarian Sir David Attenborough, is the first of its kind to evolve a toothless beak. It's from a branch of the bird family tree that went extinct in the mass extinction 66 million years ago, and this strange bird is another puzzle piece that helps explain why some birds -- and their fellow dinosaurs -- went extinct, and others survived to today.

While summer sea ice loss in the Arctic is inevitable, it can be reversed if the planet cools down, researchers say.

Researchers have investigated the relation between 40-year-old women's pregnancy history and later risk of dying of cardiovascular diseases. Within each level of total number of pregnancies women had by age 40, mortality risk increased with increasing number of complicated pregnancies.

Green walls can strip pollution from the air -- and some plants do it better than others, according to new research. Researchers planted 10 species on a custom-built 1.4m green wall.

For some, retirement evokes thoughts of slowing down, relaxing, and enjoying more of what life has to offer. For others, ending a regular work schedule can create stress and uncertainties about being able to pay necessary bills and maintain adequate medical care.

Scientists have developed a novel triple-junction perovskite/Si tandem solar cell that can achieve a certified world-record power conversion efficiency of 27.1 per cent across a solar energy absorption area of 1 sq cm, representing the best-performing triple-junction perovskite/Si tandem solar cell thus far. To achieve this, the team engineered a new cyanate-integrated perovskite solar cell that is stable and energy efficient.

A collaborative team of researchers developed an implant coating triggering antibiotic release in response to bacterial infection.

People who experience sleep apnea may be more likely to also have memory or thinking problems, according to a preliminary study. The study shows a positive association but did not determine whether sleep apnea causes cognitive decline.

The James Webb Space Telescope is helping scientists uncover how planets form by advancing understanding of their birthplaces and the circumstellar disks surrounding young stars. Scientists have imaged winds from an old planet-forming disk (still very young relative to the Sun) which is actively dispersing its gas content. Knowing when the gas disperses is important as it constrains the time left for nascent planets to consume the gas from their surroundings.

Most of the sunlight reaching the Arctic Ocean is reflected to space by sea ice, effectively shielding ocean ecosystems from sunlight. As the Arctic sea ice continues its downward trend, larger areas of the ocean become exposed to sunlight for longer periods, potentially allowing more primary production on the seafloor. However, according to a new study, this anticipated increase in primary production does not seem to be occurring uniformly across the Arctic Ocean.