More than 99% of birds can fly. But that still leaves many species that evolved to be flightless, including penguins, ostriches, and kiwi birds. In a new study in the journal Evolution, researchers compared the feathers and bodies of different species of flightless birds and their closest relatives who can still fly. They were able to determine which features change first when birds evolve to be flightless, versus which traits take more time for evolution to alter. These findings help…

ASU scientists first to examine hormones and PTSD in non-industrialized society According to the World Health Organization, about 3.9% of the world’s population has had post-traumatic stress disorder at some point during their lives. That number is higher in the United States, at about 6%. PTSD can happen to an individual after experiencing or witnessing a traumatic event and can last for months or years. But there is a lot that is still not understood about this mental health condition. Anthropologists, social scientists…

In a study published today in Biofunctional Materials, Prof. Dr. Haidar, Founder and CEO of BioMAT’X I+D+I LABs in Santiago, Chile, unveils a groundbreaking advancement in dental care: Copper-incorporated microvesicles (CiMs). This innovative technology combines the healing power of copper with microvesicles to enhance tissue regeneration, promote healing, and combat oral diseases. With potential applications in dentistry, cranio-maxillo-facial surgery and beyond, CiMs; a promising leap forward in biomedical technology. In an exciting breakthrough for dental care, researchers are introducing copper-incorporated…

A team of scientists at UNSW has discovered that some of the most important new refrigerants break down, in part, into persistent greenhouse gas pollutants, including compounds that have been banned internationally. Refrigerants are chemicals that turn from a liquid to a gas – and vice-versa – and transfer heat in the process, that are used for refrigeration and indoor heating and cooling. The chemicals are also used as aerosol propellants, fire retardants and in the manufacture of foamed plastics….

New Curtin University research has revealed how massive ancient glaciers acted like giant bulldozers, reshaping Earth’s surface and paving the way for complex life to flourish. By chemically analysing crystals in ancient rocks, the researchers discovered that as glaciers carved through the landscape, they scraped deep into the Earth’s crust, releasing key minerals that altered ocean chemistry. This process had a profound impact on our planet’s composition, creating conditions that allowed complex life to evolve. Lead author Professor Chris Kirkland…

Continuous Glucose Monitors (CGMs) are growing in popularity but new peer-reviewed research, published in The American Journal of Clinical Nutrition, from the University of Bath, suggests they may not be as accurate as many believe. Originally designed to help people living with diabetes manage their blood sugar, these devices are now being used by the health-conscious to track how different foods affect their glucose levels. The study, from the University’s Centre for Nutrition, Exercise and Metabolism and funded by innocent…

Groundbreaking review uncovers how common medications disrupt critical cholesterol synthesis in developing brains, sparking urgent pregnancy safety concerns In a peer-reviewed Perspective (review) article, researchers at the University of Nebraska Medical Center have uncovered concerning evidence that commonly prescribed medications may interfere with crucial brain development processes by disrupting sterol biosynthesis. Their findings, published today in Brain Medicine (Genomic Press, New York), suggest that this previously overlooked mechanism could have significant implications for medication safety during pregnancy and early development….

As traditional candles burn, they can contribute to indoor air pollution by emitting volatile compounds and smoke, which may pose inhalation risks. Scented wax melts are often marketed as safer alternatives to candles because they’re flame- and smoke-free. But in a study in ACS’ Environmental Science & Technology Letters, researchers describe how aroma compounds released from the melted wax can react with ozone in indoor air to form potentially toxic particles. Previous research has shown that scented wax melts emit…

Adaptable model can replicate realistic breathing maneuvers and offer personalized evaluation of aerosol therapeutics under various breathing conditions Respiratory diseases are a challenging problem to treat. Inhalable medicines are a promising solution that depend on the ability to deliver tiny particles known as aerosols to the correct location in the lungs at the correct dosage. How effectively this works can get complicated, depending on the drug, delivery method and patient. This is because it is difficult to predict just how…

Promising antibody may prove useful against deadly outbreaks New research led by scientists at La Jolla Institute for Immunology (LJI) reveals the workings of a human antibody called mAb 3A6, which may prove to be an important component for Ebola virus therapeutics. This antibody was isolated from blood samples from an Ebola survivor treated at Emory University Hospital during the 2014-2016 Ebola virus outbreak, an outbreak that began in West Africa and killed more than 11,300 people. In their new…

One of nature’s most disliked creatures may very well unlock a breakthrough in disaster response. A multidisciplinary Purdue University research team is recreating mosquito antennae to better study their sensitivity to vibrations. Should the research prove fruitful, it could lead to improvements in monitoring and detecting natural disasters such as earthquakes and tsunamis. Research groups under Purdue professors Pablo Zavattieri and Ximena Bernal conducted this work, which is published in the journal Acta Biomaterialia. “We’re still in the early stages but…

Greaux Healthy—a public service initiative powered by Pennington Biomedical Research Center, in partnership with the State of Louisiana—is proud to announce the release of the Childhood Obesity Prevention, Evaluation and Treatment Toolkit, a comprehensive resource designed to equip healthcare providers with practical, evidence-based guidance for preventing, evaluating, and treating childhood obesity and its related comorbidities. Developed in alignment with the 2023 American Academy of Pediatrics (AAP) clinical practice guidelines, the toolkit synthesizes the latest scientific evidence and real-world strategies to…

Commonly used injections offer little or no pain relief, says expert panel. Findings question whether it’s reasonable to continue to offer these procedures outside of clinical trials Spine injections should not be given to adults with chronic back pain because they provide little or no pain relief compared with sham injections, say a panel of international experts in The BMJ today. Their strong recommendations apply to procedures such as epidural steroid injections and nerve blocks for people living with chronic back pain…

Replacing chemical phosphorus and nitrogen with sustainable sources Growing plants can be a joyous, yet frustrating process as plants require a delicate balance of nutrients, sun, and water to be productive. Phosphorus and nitrogen, which are essential for plant growth, are often supplemented by chemical fertilizers to assure proper balance and output of produce. However, the amount of these nutrients on the planet is increasing due to excessive use, which in turn is causing various environmental problems. For this reason,…

The rise in human life expectancy has slowed down across Europe since 2011, according to research from the University of East Anglia and partners. A new study, published today in The Lancet Public Health, reveals that the food we eat, physical inactivity and obesity are largely to blame, as well as the Covid pandemic. Of all the countries studied, England experienced the biggest slowdown in life expectancy. It means that rather than looking forward to living longer than our parents or…

This study unveils Ba-Si orthosilicate oxynitride-hydride as a transition metal-free catalyst, paving the way for sustainable chemical innovation  As the world moves toward sustainability, the demand for efficient alternatives across industries continues to grow. Ammonia, a key chemical used in fertilizers, explosives, and various other products, is primarily synthesized through the energy-intensive Haber-Bosch process. This process requires extremely high temperatures and pressures, contributing to global carbon dioxide emissions. Conventional catalysts, such as iron and ruthenium, rely on these harsh conditions…