Eurekalert

Great reed warblers normally migrate by night during its month-long migration from northern Europe to Sub-Saharan Africa. However, researchers have now discovered that during the few occasions when it continues to fly during daytime, it flies at extremely high altitudes (up to 6300 meters). One possible explanation for this unexpected and consistent behaviour could be that the birds want to avoid overheating. The study is published in Science.

A new survey shows that websites dedicated to pornography are popular among 16- and 17-year-olds. But social media are playing also a prominent role.

Depressive symptoms are more common in teenage girls than in their male peers. However, boys' mental health appears to be affected more if they suffer from obesity. Irrespective of gender, bullying is a considerably greater risk factor than overweight for developing depressive symptoms. These conclusions are drawn by researchers at Uppsala University who monitored adolescents for six years in a questionnaire study, now published in the Journal of Public Health.

Some meat eaters feel disgusted by meat, according to a new study.

RNA-based drugs may change the standard of care for many diseases, making personalized medicine a reality. So far these cost-effective, easy-to-manufacture drugs haven't been very useful in treating brain tumors and other brain disease. But a team of researchers at Georgia Tech and Emory University has shown that a combination of ultrasound and RNA-loaded nanoparticles can temporarily open the protective blood-brain barrier, allowing the delivery of potent medicine to brain tumors.

Among collegiate football players and other athletes, Black athletes recognize fewer concussion-related symptoms than their White counterparts, reports a study in the May/June issue of the Journal of Head Trauma Rehabilitation (JHTR). The official journal of the Brain Injury Association of America, JHTR is published in the Lippincott portfolio by Wolters Kluwer.

Narrow-gap semiconductors with the ability to use visible light have garnered significant interest thanks to their versatility. Now, scientists in Japan have developed and characterized a new semiconductor material for application in process components stimulated by light. The findings have, for the first time, suggested a new way to reduce the band gap in cheaper and non-toxic tin-based oxide semiconductors for efficient light-based applications.

Coral bleaching, which is becoming stronger and more frequent due to heat stress, has already wiped out corals at many locations globally. With the help of a microbiome-targeting strategy developed by an international team led by GEOMAR Helmholtz Centre for Ocean Research Kiel, it could become feasible to help protect corals from heat stress.

Plant pathogen needs membrane-bound protein complex to be virulent

A gene called GAS2 plays a key role in normal hearing, and its absence causes severe hearing loss, according to a study led by researchers in the Perelman School of Medicine at the University of Pennsylvania.

Collaboration between deep learning experts and microscopy experts leads to an significantly improved data-intensive light-field microscopy method by using AI and ground-truthing it with light-sheet microscopy. The result is the power of light-field microscopy available to biologists in near real time vs. days or weeks, AND the expansion of biologists' ability to use this microscopy for many things more things requiring the most detailed observation.

In order to find our way in the world, we classify it into concepts, such as "telephone". Until now, it was unclear how the brain retrieves these when we only encounter the word and don't perceive the objects directly. Scientists at the German MPI CBS have now developed a model of how the brain processes abstract knowledge. They found that depending on which features one concentrates on, the corresponding brain regions go into action.

A new study finds that the indoor aerosol species are primarily from outdoor air exchange.

Brazilian researchers show that feed supplementation improves fatty acid profile of milk and promotes a healthier omega-6/omega-3 ratio.

The world's largest terrestrial conservation area is located in southern Africa and covers 520,000 square kilometers spanning five countries. A study from the University of Zurich now shows that the endangered African wild dog mostly remains within the boundaries of the Kavango-Zambezi Transfrontier Conservation Area (KAZA) when dispersing, thus highlighting the relevance of such a large-scale conservation initiative for maintaining key wildlife corridors of threatened species.

Patients with lasting symptoms of COVID-19 who completed a six week, supervised rehabilitation programme demonstrated significant improvements in exercise capacity, respiratory symptoms, fatigue and cognition.

Cells talk to each other to coordinate nutrition, waste removal, energy use, and, in some cases, disease progression. The cells that line the surfaces of organs or specific tissues, called epithelial cells, appear to speak two different languages - one for either side of the cell, according to a new study by researchers based in Japan.

Researchers from Japan Advanced Institute of Science and Technology (JAIST) have successfully established a new humidity in situ measurements for anion conducting polymer thin films.

Australia, the driest inhabited continent, is prone to natural disasters and wild swings in weather conditions - from floods to droughts, heatwaves and bushfires. Now two new Flinders University studies of long-term hydro-climatic patterns provide fresh insights into the causes of the island continent's strong climate variability which affect extreme wet or dry weather and other conditions vital to water supply, agriculture, the environment and the nation's future.

Recently, Prof. XIE Can from the High Magnetic Field Laboratory of the Hefei Institutes of Physical Science (HFIPS), in a collaboration with Prof. YAN Xiyun's lab from the Institute of Biophysics, reported the structural basis of mAb AA98's inhibition on CD146-mediated endothelial cells (EC) activation and designed higher affinity monoclonal antibody HA98 for cancer treatment.