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Updated: 29 min 40 sec ago
Scientists from Newcastle University have shown that human embryonic stem cells move by travelling back and forth in a line, much like ants moving along their trails.
A study has uncovered the secret to why endangered whale sharks gather on mass at just a handful of locations around the world.
College students seriously underestimate the effects of drinking a new class of beverages being marketed across the country, according to a new George Mason University study. 'Supersized alcopops' -- sweet, colorful and fizzy drinks that have been shown to appeal to youth -- now contain almost as much alcohol as a six-pack of beer in a single can, and young drinkers don't know how much these drinks can affect them.
A team from the Faculty of Biology, MSU tested on plants mitochondria-targeted antioxidants developed in the university lab under the guidance of Academician Vladimir Skulachev. The tests showed slowdown of senescence processes and inhibition of cell death. The study was published in the Mitochondrion journal.
The hippocampus is a critical region in the brain for learning and memory. For the first time, scientists have observed how stimulation causes the spines on its neuronal dendrites to enlarge.
A laser pulse that for a few picoseconds transforms a material into a high-temperature superconductor. Different experiments have unveiled this interesting phenomenon, with potential applicative implications. Research carried out by SISSA scientists a year ago had already provided several basic principles of the phenomenon. A new study published on "Physical Review Letters" now clarifies other important aspects.
Researchers at the University of Cordoba assess the success or failure of installing remote control systems and data measuring in water users associations.
Reversing memory deficits and impairments in spatial learning is a major goal in dementia research. A lack of knowledge about cellular pathways critical to the development of dementia has prevented significant clinical advance. Researchers at Temple's Lewis Katz School of Medicine are breaking through that barrier. They show, for the first time in an animal model, that a drug can reverse tau pathology -- the second-most important lesion in the brain in patients with Alzheimer's.
A molecular process that signals distress could also help corals adapt to climate change.
A new study from the University of Iowa and published by the Journal of the American Medical Association finds that children with autism spectrum disorder (ASD) are more than twice as likely to suffer from a food allergy than children who do not have ASD.
Antibiotics are most commonly prescribed for acute respiratory infections, although most of these infections are caused by viruses for which antibiotics aren't effective. A new study found that among almost 15,000 outpatients with acute respiratory infections during flu seasons, 41 percent of outpatients were prescribed antibiotics and 41 percent of them had diagnoses for which antibiotics weren't indicated. The results suggest antibiotic overuse remains widespread in the treatment of outpatient acute respiratory infections.
Food and other types of allergies are more likely to be reported in children with autism spectrum disorder (ASD) than in children without ASD but the underlying reasons for this association aren't clear.
Researchers have demonstrated that microbial signatures, the unique microbial make-up of each individual, from the built environment can identify persons involved in crimes occurring in the home, such as burglaries. The research is presented at ASM Microbe, the annual meeting of the American Society for Microbiology, held from June 7-11 in Atlanta, Ga.
Scientists with USDA's Agricultural Research Service (ARS) are developing ways to identify the sources of any potentially harmful bacteria found in the surface waters around Athens, Georgia. The research is presented at ASM Microbe, the annual meeting of the American Society for Microbiology, held from June 7-11 in Atlanta, Ga.
Researchers from Vanderbilt University Medical Center have determined the metabolic pathway that Staphylococcus aureus use to survive in bones. Invasive S. aureus infections frequently occur in the bone and are notoriously resistant to antimicrobial therapy. The research is presented at ASM Microbe, the annual meeting of the American Society for Microbiology, held from June 7-11 in Atlanta, Ga.
Five percent more cardiac infarctions detected and 11 percent fewer patients suffering a relapse. That is the result of a study of more than 80,000 patients in which two cardiac damage markers (conventional troponin and the newer, high-sensitive troponin T) were compared with each other.
A team of researchers form Russia discovered that an increase in the concentration of several substances in oral fluid can serve as the indication of caries development. Using this data they found a way to prevent the disease in its early stages. The study was supported by a grant from the Russian Science Foundation (RSF). The results of the study were published in the EPMA Journal.
Saturn is the second largest planet in our solar system and has a characteristic ring. Japanese researchers have now synthesized a molecular 'nano-Saturn'. As the scientists report in the journal Angewandte Chemie, it consists of a spherical C(60) fullerene as the planet and a flat macrocycle made of six anthracene units as the ring. The structure is confirmed by spectroscopic and X-ray analyses.
A research team led by Prof. ZHENG Hairong from the Shenzhen Institutes of Advanced Technology (SIAT) of the Chinese Academy of Sciences, in collaboration with Prof. LIU Bin from the University of Singapore, reported the first NIR-II fluorescent molecule with aggregation-induced-emission (AIE) characteristics for dual fluorescence and photoacoustic imaging.
During a depressive episode the ability of the brain to form new brain cells is reduced. Scientists of the Ruhr-Universität Bochum examined how this affects the memory with a computational model. It was previously known that people in an acute depressive episode were less likely to remember current events. The computational model however suggests that older memories were affected as well. How long the memory deficits reach back depends on how long the depressive episode lasts.