Earth
UNIVERSITY PARK, Pa. -- Wild bees are more affected by climate change than by disturbances to their habitats, according to a team of researchers led by Penn State. The findings suggest that addressing land-use issues alone will not be sufficient to protecting these important pollinators.
Brain cells often cluster and grow together creating three-dimensional columns. While this pillar-like pattern of neurons is established, the exact mechanism behind its formation is still elusive. Makoto Sato's team at Kanazawa University has been closely studying this phenomenon. Their recent findings explain how molecules in the brain work in conjunction to create the architectural marvels that are the columns.
Researchers at Tampere University, Finland, have published new results in collaboration with an international research network that help to understand the biological phenomena mediated by cell membrane integrin receptors and contribute to the development of methods for the treatment of cancer.
In the cell membrane, integrins form the connection between the cytoskeleton and the extracellular matrix. The regulation of integrin activity is essential for the function of tissues and individual cells.
Dilated cardiomyopathy (DCM) is a condition caused by the weakening of the heart muscle, affecting the ventricles (chambers in the heart that push blood around the body as it contracts). If allowed to progress unchecked, DCM can lead to heart failure and death, especially in children. The only cure, at present, is a heart transplant, which comes with its own challenges: long waiting times to secure a suitable donor heart, the possibility of organ rejection, long hospitalizations and recovery times, among others.
Tsukuba, Japan - Proton-exchange membrane (PEM) fuel cells are an energy storage technology that will help lower the environmental footprint of transportation. These fuel cells make use of a chemical reaction known as oxygen reduction. This reaction needs a low-cost catalyst for widespread commercial applications. Nitrogen-doped carbon is one such catalyst, but the chemical details of how nitrogen doping works are rather controversial. Such knowledge is important to improving the function of PEM fuel cells in future technologies.
Nausea and vomiting symptoms during pregnancy start within a three day timeframe for most women, according to new study from University of Warwick
More accurate measurement achieved by calculating start of pregnancy from date of ovulation - rather than last menstrual period
Points to a potential biological cause for nausea and vomiting, and supports the view that the condition has been trivialised
What will the SARS-CoV-2 outbreak look like ten years from now as it passes from pandemic to endemic, maintained at a constant baseline level in populations without being fueled by outside infections? Data from four endemic human coronaviruses, which circulate globally and cause only mild symptoms, may hold some answers, say Jennie Lavine and colleagues. Their analysis of the immunological and epidemiological data for these viruses helped them develop a model to predict the trajectory of SARS-CoV-2 as it becomes endemic.
A new study conducted at the New England Aquarium finds that as climate change causes the ocean to warm, baby sharks are born smaller, exhausted, undernourished, and into environments that are already difficult for them to survive in.
Typically characterized as poisonous, corrosive and smelling of rotten eggs, hydrogen sulfide's reputation may soon get a face-lift thanks to Johns Hopkins Medicine researchers. In experiments in mice, researchers have shown the foul-smelling gas may help protect aging brain cells against Alzheimer's disease. The discovery of the biochemical reactions that make this possible opens doors to the development of new drugs to combat neurodegenerative disease.
Climate changes prompt many important questions. Not least how it affects animals and plants: Do they adapts, gradually migrate to different areas or become extinct? And what is the role played by human activities? This applies not least to Greenland and the rest of the Artic, which are expected to see the greatest effects of climate changes.
GAINESVILLE, Fla. --- Entomologist Akito Kawahara's message is straightforward: We can't live without insects. They're in trouble. And there's something all of us can do to help.
Kawahara's research has primarily focused on answering fundamental questions about moth and butterfly evolution. But he's increasingly haunted by studies that sound the alarm about plummeting insect numbers and diversity.
Scientists have determined the optimal conditions following a stem cell transplant that could control HIV without the need of an everyday pill, according to a study published today in eLife.
Finding the right balance of stem cell dose, cell type and timing of antiretroviral therapy (ART) could potentially lead to a spontaneous cure of HIV.
There are only two cases of HIV cure to date: the Berlin Patient and the London Patient, who both received stem cell transplants with stem cells from donors that lack a molecule called CCR5, which HIV is attracted to.
The Korea Institute of Science and Technology (KIST) has announced that the research team led by Dr. Kim Kyoung-Whan at the Center for Spintronics has proposed a new principle about spin memory devices, which are next-generation memory devices. This breakthrough presents new applicability that is different from the existing paradigm.
WINSTON-SALEM, N.C. - Jan. 11, 2021 - Most doctors would agree that advanced care planning (ACP) for patients, especially older adults, is important in providing the best and most appropriate health care over the course of a patient's life.
Unfortunately, the subject seldom comes up during regular clinic visits.
Diets rich in certain plant-based foods are linked with the presence of gut microbes that are associated with a lower risk of developing conditions such as obesity, type 2 diabetes and cardiovascular disease, according to recent results from a large-scale international study that included researchers from King's College London, the Harvard T.H. Chan School of Public Health, Massachusetts General Hospital (MGH), the University of Trento, Italy, and health science start-up company ZOE.
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