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The premier online source for science news since 1996. A service of the American Association for the Advancement of Science.
Updated: 11 min 26 sec ago

Mobile application detecting atrial fibrillation reduces the risk of stroke

Mar 16 2018 - 00:03
A new application developed at the University of Turku, Finland, can detect atrial fibrillation that causes strokes. Atrial fibrillation can be detected with the mobile phone application without any extra equipment. The mobile application can save lives all over the world as timely diagnosis of atrial fibrillation is crucial for effective stroke prevention.
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Near-infrared photoactivatable oxygenation catalysts of amyloid peptide

Mar 16 2018 - 00:03
A new, biocompatible photooxygenation catalyst that can selectively oxygenate and degrade the pathogenic aggregation of Alzheimer's disease (AD)-related amyloid-β peptide (Aβ) under near-infrared (NIR) light irradiation is developed. The catalyst was able to oxygenate Aβ embedded under the skin of a living mouse, and diminished intact Aβ level in AD-model mouse brain. The new catalyst is potentially applicable for the treatment of peripheral amyloid diseases and AD.
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Bees: How royal jelly prevents royal offspring from falling out of their cells

Mar 16 2018 - 00:03
Defying gravity: A special mixture of proteins in the larval food of bees ensures that future queen larvae survive. Surprisingly this has less to do with nourishment than with gravity. The special properties of the proteins prevent the large and heavy larvae from falling out of their cells. Researchers at Martin Luther University Halle-Wittenberg (MLU) have discovered how this is accomplished at a molecular level. Their study appeared in the internationally renowned journal 'Current Biology'.
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Which skills will help patients with obsessive-compulsive disorder?

Mar 16 2018 - 00:03
Obsessive-compulsive disorder (OCD) is a complex psychological condition, and those who suffer from it experience severe reduction in their quality of life. A new study in Springer's journal Cognitive Therapy and Research now shows that OCD sufferers need to adopt adaptive coping skills rather than the maladaptive strategies often used such as repetitive, compulsive actions or creating emotional distance from a situation, in order to effectively manage their condition.
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Study casts doubt on ketamine nasal sprays for depression

Mar 16 2018 - 00:03
Researchers from UNSW Sydney and the Black Dog Institute have questioned the efficacy and safety of intranasal ketamine for depression, with their pilot trial stopped early due to poor side effects in patients.
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Coral reefs suffering in Philippines despite outlawing damaging fishing practices

Mar 16 2018 - 00:03
Some of the fishing methods used in today's small-scale fisheries are causing more damage to coral reefs than ever, a new UBC study has found.
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Your gender may affect how you perceive a woman's anxiety in STEM

Mar 16 2018 - 00:03
Undergraduate students' reactions to reading about a woman's anxiety in a science, technology, engineering and mathematics (STEM) class vary by gender according to a Dartmouth-led study published in the Psychology of Women Quarterly. Men are more likely than women to attribute a female student's anxiety or self-doubt in a STEM class to internal factors such as not being prepared while women are more likely than men to attribute such emotions to external factors, such as bias.
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Reefs help protect vulnerable Caribbean fish from climate change

Mar 16 2018 - 00:03
New research from UBC's Institute for the Oceans and Fisheries suggests that larger reef areas may help protect the Caribbean's coral reef fish communities from the impacts of ocean warming.
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Americans slow down the clock of age

Mar 16 2018 - 00:03
A close examination of national health data indicate that the rate of biological aging appears to be more delayed for all Americans, but particularly for men, which may extend their lives. Researchers cite advancements in medicine as one possible reason for the deceleration. The study appeared in Demography.
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With new 'shuffling' trick, researchers can measure gene activity in single cells

Mar 16 2018 - 00:03
Researchers at the University of Washington and the Allen Institute for Brain Science have developed a new method to classify and track the multitude of cells in a tissue sample. In a paper published March 15 in the journal Science, the team reports that this new approach -- known as SPLiT-seq -- reliably tracks gene activity in a tissue down to the level of single cells.
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Elusive venomous mammal joins the genome club

Mar 16 2018 - 00:03
An article published in GigaScience presents a draft genome of a small shrew-like animal, the venomous Hispaniolan solenodon. This unusual animal is one of the only extant venomous mammals, and it is the sole remaining branch of mammals that split from other insectivores at the time of the dinosaurs. The solenodon genome sequence revealed the answer to several evolutionary questions, such as whether the solenodon species indeed survived the meteor impact that killed the dinosaurs.
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Smart software can diagnose prostate cancer as well as a pathologist

Mar 16 2018 - 00:03
Chinese scientists and clinicians have developed a learning artificial intelligence system which can diagnose and identify cancerous prostate samples as accurately as any pathologist. This holds out the possibility of streamlining and eliminating variation in the process of cancer diagnosis. It may also help overcome any local shortage of trained pathologists. In the longer term it may lead to automated or partially automated prostate cancer diagnosis.
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Sexual harassment statistics: Do the numbers reveal the true extent of the problem?

Mar 16 2018 - 00:03
A new article addresses the statistics of sexual harassment and questions how prevalent it is.
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Experience trumps youth among jumping fish

Mar 16 2018 - 00:03
Tiny jumping fish can leap further as they get older, new research shows.
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Monocrystalline silicon thin film for cost-cutting solar cells with 10-times faster growth rate fabricated

Mar 16 2018 - 00:03
A research team from Tokyo Institute of Technology (Tokyo Tech) and Waseda University have successfully produced high-quality thin film monocrystalline silicon with a reduced crystal defect density down to the silicon wafer level at a growth rate that is more than 10 times higher than before. In principle, this method can improve the raw material yield to nearly 100%.
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Potential RNA Markers of abnormal heart rhythms identified in circulating blood

Mar 15 2018 - 00:03
The irregular heart rhythm atrial fibrillation (AF) increases the risk of stroke and heart failure, but is often undiagnosed because of a lack of symptoms. Now, Tokyo Medical and Dental University (TMDU) researchers have identified four short lengths of RNA (miRNAs) that show increased expression in the circulating blood of AF patients. These miRNAs could be used as potential biomarkers to predict the onset of AF disease.
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New understanding of Kenyan Paleoenvironments opens window on human evolution in the area

Mar 15 2018 - 00:03
Interest in human evolution has stimulated new geological work in the southern rift valley of Kenya. A new Geological Society of America Bulletin article by Anna K. Behrensmeyer and colleagues presents the results of more than 15 years of field research on complex strata representing the last 500 thousand years of geological history in an active rift system.
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Democratizing science: Making neuroscience experiments easier to share, reproduce

Mar 15 2018 - 00:03
In a paper published online March 5 in Nature Communications, University of Washington researchers unveiled an open-access browser to display, analyze and share neurological data collected through a type of magnetic resonance imaging study known as diffusion-weighted MRI.
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Early puberty linked with increased risk of obesity for women

Mar 15 2018 - 00:03
Girls who start puberty earlier are more likely to be overweight as adults, finds new research from Imperial College London.
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Study of nearly 300,000 people challenges the 'obesity paradox'

Mar 15 2018 - 00:03
The idea that it might be possible to be overweight or obese but not at increased risk of heart disease, otherwise known as the 'obesity paradox', has been challenged by a study of nearly 300,000 people published in in the European Heart Journal. The research shows that the risk of heart and blood vessel problems, such as heart attacks, strokes and high blood pressure, increases as body mass index (BMI) increases beyond a BMI of 22-23 kg/m2.
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