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A Caltech-led team of biochemists has homed in on an underexplored small transporter called MurJ that is a vital part of the pathway bacteria use to build their chain-mail-like cell wall. An essential component of the cell wall, called peptidoglycan, provides the strength that allows bacteria to resist pressure.

Sleep apnea affects nearly one billion people worldwide and causes repeated episodes of oxygen deprivation during the night, known as intermittent hypoxia. A study conducted by scientists from the University of Grenoble Alpes, Inserm, and Grenoble Alpes University Hospital, published today in the journal Science Advances , shows that these episodes reorganize the liver's biological clock, altering the daily rhythms of its metabolic activity.

A research group at the University of Lausanne has identified a new mechanism that exposes the vulnerability of tumor cells when they are deprived of vitamin B7. The ability of cells to adapt to fluctuations in nutrient availability is essential to life. Yet, some cells become highly dependent on glutamine, an amino acid that plays a central role in cellular metabolism.

A research team led by Chris Baumann and Dorothée Drucker from the Senckenberg Centre for Human Evolution and Palaeoenvironment at the University of has found that the European wildcat is increasingly using agricultural land as hunting grounds in some parts of Germany, especially in summer when grain crops provide cover.

Two McGill-led studies suggest rooftop panels and smarter planning increase the clean-energy transition's sustainability As solar energy rapidly is becoming the world's largest renewable power source, new research from McGill University offers a clearer picture of how much land that growth could require and how smarter choices could mitigate solar energy's land footprint.

New research from the Royal Veterinary College (RVC) has revealed that when dinosaurs leapt into the air, they may have used their tails as well as their legs. The study concludes that long-tailed, bipedal carnivores (like Velociraptor ) could have powered higher jumps by swinging their massive tails - a strategy that was later lost as birds evolved shorter tails and had to adopt different jumping techniques.

From dragonflies to starfish, new Trinity research shows that the speed of visual perception across the animal kingdom is driven by lifestyle and environment, with fast-paced lives demanding faster vision. Animals don't just see the world differently from one another, they experience time itself at dramatically different speeds.

A study in mice provides new evidence on the mechanism of action of tirzepatide, a drug approved for treating obesity and type 2 diabetes. Health Tirzepatide is one of the drugs that has revolutionized the treatment of obesity and other conditions such as diabetes in recent years. Despite its clinical success, its precise molecular and cellular mechanisms are still not fully understood.

Researchers at the University of Tübingen, working with an international team, have developed an artificial intelligence that designs entirely new, sometimes unusual, experiments in quantum physics and presents them in a way that is easily understandable for researchers. This includes experimental setups that humans might never have considered.

A team of scientists led by Leipzig University and the German Centre for Integrative Biodiversity Research (iDiv) in collaboration with the University of Valencia and others have developed a new method to track the Earth's greenness - a key indicator of vegetation health and activity - by calculating its centre of mass.

Study shows: "Switching to a new battery technology does not automatically open the door to new market players" Batteries are considered a key technology for the global energy and mobility transition. In addition to established lithium-ion batteries, sodium-ion batteries are becoming increasingly important, primarily due to their cost advantages and independence from scarce raw materials such as lithium or cobalt.

A team of scientists led by the German Centre for Integrative Biodiversity Research (iDiv), the Helmholtz Centre for Environmental Research (UFZ), and Leipzig University has developed a new method to track the Earth's greenness - a key indicator of vegetation health and activity - by calculating its centre of mass.

The 'Swiss 100' study has identified 37 proteins in centenarians' blood whose profile appears linked to slower ageing.

Whether people follow a general trend when choosing a partner or consciously decide against it has a noticeable impact on the diversity of phenotypes to choose from. This is shown by a new study by the University of Würzburg. Why are there often many different types of males in an animal group? According to the theory of evolution, only the "best" should have prevailed over time.

An artificial ear that feels just like the real thing: in laboratory experiments, researchers have produced ear cartilage that remains form-stable in animal models. Only one element is missing to make the tissue as elastic as a natural ear. For over 30 years, researchers have sought to produce an ear in a laboratory from a patient's living cellular material.

It is not easy to bring new technologies from the laboratory to market. Researchers and companies face very different demands for new developments and do not always find common ground. Scientists at Empa and other institutions have analyzed two emerging solar cell technologies to identify the greatest risks.

In plants, cells can neither move nor reorganize freely due to their rigid walls. How, then, do they correctly orient their division to build coherent tissues - A study published in Science Advances reveals that, in addition to an already well-documented classical cue, plant cells rely on the actin cytoskeleton to adjust the plane of division according to their environment.

Simon Fraser researchers have uncovered concerning fibreglass contamination in a key estuary on Vancouver Island, raising concerns about how an as-yet overlooked contaminant could affect aquatic birds, marine life and coastal communities that rely on shellfish and seafood. A new SFU study found fibreglass particles buried in the sediment and biofilm layers of the Cowichan Estuary, a 400-hectare intertidal ecosystem used by the Cowichan Tribes First Nations for generations.

Researchers at EPFL, Heidelberg University and Roche have built a human mini-bladder to show how urine composition weakens bladder tissue, helping infections recur even after antibiotics. The bladder is not just a static storage bag; its lining stretches, relaxes, and stays in constant contact with urine whose composition changes with hydration, diet, and disease.

Animals A horse's whinny is an unusually distinctive mix of sounds including both high and low frequencies. Researchers from Department of Biology demonstrate how horses produce high-frequency sounds that defy their large size while simultaneously producing lower tones: they whistle through their larynx while vibrating their vocal folds as a human does while singing.