Showing 20 articles starting at article 161
< Previous 20 articles Next 20 articles >
Categories: Biology: Biochemistry, Chemistry: General
Published Do smells prime our gut to fight off infection?
(via sciencedaily.com) Original source In nematodes and humans, mitochondrial stress in the nervous system initiates a whole-body response that is most pronounced in the gut. A recent study showed that in nematodes, the odor of a pathogen triggers the nervous system to broadcast this response to the rest of the organism, prepping mitochondria in intestinal cells to fight a bacterial infection. Humans, too, may be able to sense pathogenic odors that prepare the gut for an infection.
Published Discovering how plants make life-and-death decisions
(via sciencedaily.com) Original source Researchers have discovered two proteins that work in tandem to control an important response to cell stress.
Published Lemurs use long-term memory, smell, and social cues to find food
(via sciencedaily.com) Original source How do foraging animals find their food? A new study shows that lemurs use smell, social cues, and long-term memory to locate hidden fruit -- a combination of factors that may have deep evolutionary roots.
Published Research challenges conventional wisdom on wet surface adhesion
(via sciencedaily.com) Original source Scientists overturned long-held assumptions in that finds water can be a help for adhesion. The implications of this research are particularly in biomedical applications such as bandages, health monitoring sensors for moist skin, and advanced adhesives that could replace sutures. The insights gained into leveraging surface roughness and material properties could revolutionize industries worth billions of dollars globally.
Published Cocaine discovery could pave way for treatment for substance abuse
(via sciencedaily.com) Original source Cocaine binds to a specific transporter in the brain that is responsible for regulating dopamine levels. Researchers have studied and described the process, producing new knowledge that may bring us a step closer to designing a drug for cocaine abuse.
Published Study on planet-warming contrails 'a spanner in the works' for aviation industry
(via sciencedaily.com) Original source Modern commercial aircraft flying at high altitudes create longer-lived planet-warming contrails than older aircraft, a new study has found.
Published Monitoring of nature reserves via social media and deep learning
(via sciencedaily.com) Original source Researchers have created a deep learning method to analyze social media images taken within protected green spaces to gain insights on human activity distribution as a way to monitor the ecological impacts of these activities.
Published Unexpected link between grooming and physiological stress in wild baboons
(via sciencedaily.com) Original source New research has found a surprising link between grooming and physiological stress in wild baboons. While grooming often calms, this study suggests it can sometimes elevate stress levels. This gives us an intriguing look into primate behavior and social dynamics.
Published Giant prehistoric flying reptile took off using similar method to bats, study finds
(via sciencedaily.com) Original source The pterosaur likely used all four limbs to propel itself in the air, as seen in bats today, researchers have found.
Published Fishing is causing frightened fish to flee when they should flirt
(via sciencedaily.com) Original source Populations of squaretail grouper face an uncertain future as new research shows fishing that targets their spawning sites is causing males to be repeatedly scared away from their territories during their short mating meet-ups. By fleeing for safety, individuals are losing valuable time to catch the eye and court female fish.
Published Type 2 diabetes can be prevented by diet and exercise even in individuals with a high genetic risk
(via sciencedaily.com) Original source A new study shows that a healthy diet and regular exercise reduce the risk of type 2 diabetes even in individuals with a high genetic risk. In other words, everyone benefits from lifestyle changes, regardless of genetic risk.
Published New device for on-the-spot water testing
(via sciencedaily.com) Original source Researchers at University of Galway have developed a new, portable technology for on-the-spot testing of water quality to detect one of the most dangerous types of bacteria. Ireland regularly reports the highest crude incidence rates of the pathogen Shiga toxigenic Escherichia coli -- STEC for short -- in Europe over the recent years.
Published Plants offer fruit to insects to disperse dust-like seeds
(via sciencedaily.com) Original source Fruit exist to invite animals to disperse the swallowed seeds. A research team found that plants targeting insects rather than birds or mammals for this service are more common than previously thought. These plants produce dust-like seeds and fruit suitable for the minute, ground-dwelling animals.
Published Nasal microbiome: Depriving multi-resistant 'bugs' of iron
(via sciencedaily.com) Original source Whether dangerous staphylococci survive in the nose depends on what other bacteria are present -- and how they obtain iron.
Published Elephants on the move: Mapping connections across African landscapes
(via sciencedaily.com) Original source Elephant conservation is a major priority in southern Africa, but habitat loss and urbanization mean the far-ranging pachyderms are increasingly restricted to protected areas like game reserves. The risk? Contained populations could become genetically isolated over time, making elephants more vulnerable to disease and environmental change.
Published Living with a killer: How an unlikely mantis shrimp-clam association violates a biological principle
(via sciencedaily.com) Original source When clams gamble on living with a killer, sometimes their luck may run out, according to a new study.
Published Researchers find gene which determines marsupial fur color
(via sciencedaily.com) Original source Fur is a defining characteristic of mammals, coming in a wide variety of colors and patterns -- thanks to a world-first study, we now know which genes make a marsupial's coat black or grey.
Published Advanced chelators offer efficient and eco-friendly rare earth element recovery
(via sciencedaily.com) Original source The world is going to need a lot of weird metals in the coming years, according to chemistry professor. But he isn't talking about lithium, cobalt or even beryllium. He's interested in dysprosium, which is so hidden in the periodic table that you'd be forgiven for thinking he made it up.
Published Concept for efficiency-enhanced noble-metal catalysts
(via sciencedaily.com) Original source The production of more than 90 percent of all chemical products we use in our everyday lives relies on catalysts. Catalysts speed up chemical reactions, can reduce the energy required for these processes, and in some cases, reactions would not be possible at all without catalysts. Researchers developed a concept that increases the stability of noble-metal catalysts and requires less noble metal for their production.
Published Live longer, die healthier
(via sciencedaily.com) Original source Everyone wants to live to a ripe old age, but no one wants to be decrepit. Now, researchers demonstrated a treatment that could lengthen life -- and vigor -- up to the very end. Gerontologists describe how a group of mice lived 9% longer when they received monthly treatments, walking faster and gripping objects with greater strength than untreated mice of the same age.