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The premier online source for science news since 1996. A service of the American Association for the Advancement of Science.
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The presence of sexual violence in neighborhoods erodes feelings of safety

Jan 15 2018 - 00:01
Feelings about the frequency of rape or other forms of sexual assault in a neighborhood are significantly tied to women's -- but not men's -- perceptions of its safety, according to new research.
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Experts seek to standardize treatments for childhood rheumatic diseases

Jan 15 2018 - 00:01
Pediatric rheumatic diseases are a varied group of rare diseases including juvenile forms of arthritis, lupus, fibromyalgia, and other conditions. Currently, there is considerable variability in how patients with these diseases are treated in clinical practice, making it difficult to understand which therapies work best.
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An emergency response to Canada's opioid overdose crisis

Jan 15 2018 - 00:01
To help address the opioid overdose epidemic, Canada should develop a regulated program to distribute opioids and prevent deaths, argues a commentary in CMAJ.
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Flawed research methods exaggerate the prevalence of depression

Jan 15 2018 - 00:01
The common practice of using patient self-report screening questionnaires rather than diagnostic interviews conducted by researchers has resulted in overestimates of the prevalence of depression, according to an analysis in CMAJ.
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Teens who were severely bullied as children at higher risk of suicidal thoughts, mental health issue

Jan 15 2018 - 00:01
Teens who were severely bullied as children by peers are at higher risk of mental health issues, including suicidal thoughts and behaviours, according to new research in CMAJ (Canadian Medical Association Journal).
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Researchers reveal high performance CNT catalyst relating to its electroconductivity

Jan 14 2018 - 00:01
Biofuels were obtained from Jatropha Oil using carbon nanotube (CNT) catalyst, which showed efficient cracking activity. The performance was activated by the high stability, metal sites, acid sites, electroconductivity, and coking tolerance of CNT. Two cracking circulations were found in the hydroprocessing. Meanwhile, the sulphur-free process was eco-friendly.
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Mapping the social landscape

Jan 14 2018 - 00:01
Scientists have, in recent decades, pinpointed neurons called 'place cells' in our brains that encode our own location in the environment, but how our brains represent the positions of others has been a mystery. New Weizmann Institute of Science research in bats, which was published today in Science, reveals a sub-population of neurons that encode the specific location of other bats that are flying nearby.
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NHS bowel scope uptake boosted by a fifth when patients sent reassuring reminders

Jan 14 2018 - 00:01
Bowel scope screening increased by more than a fifth (21.5 percent) when people were sent additional reminders with a leaflet that addressed common concerns, according to a new study funded by Cancer Research UK.
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Electronic modulation of carotid sinus nerve can be used as a treatment for type 2 diabetes in rats

Jan 14 2018 - 00:01
The team lead by Sílvia Vilares Conde, from CEDOC-NOVA Medical School, in collaboration with the pharmaceutical company Galvani Bioelectronics, demonstrated through findings in rats that is possible to restore insulin sensitivity and glucose homeostasis, by modulating electrically the carotid sinus nerve, the sensitive nerve that connects the carotid body with the brain.
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Surfers three times more likely to have antibiotic-resistant bacteria in guts

Jan 14 2018 - 00:01
Scientists compared fecal samples from surfers and non-surfers to assess whether the surfers' guts contained E. coli bacteria that were able to grow in the presence of the antibiotic cefotaxime. Cefotaxime has previously been prescribed to kill off these bacteria, but some have acquired genes that enable them to survive this treatment.The study found that 13 of 143 (9 percent) of surfers were colonized by these resistant bacteria, compared to just four of 130 (3 percent) of non-surfers swabbed.
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Scientists identify genes implicated in the high regenerative capacity of embryos and ESCs

Jan 12 2018 - 00:01
Researchers at Insilico Medicine , AgeX Therapeutics and the Biogerontology Research Foundation have published a landmark study titled 'Use of deep neural network ensembles to identify embryonic-fetal transition markers: repression of COX7A1 in embryonic and cancer cells' in the journal Oncotarget.
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First method to detect illicit drone filming developed

Jan 12 2018 - 00:01
'The beauty of this research is that someone using only a laptop and an object that flickers can detect if someone is using a drone to spy on them,' says Ben Nassi, a Ph.D. student in the BGU Department of Software and Information Systems Engineering and a researcher at the BGU Cyber Security Research Center (CSRC). 'While it has been possible to detect a drone, now someone can also tell if it is recording a video of your location or something else.'
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Can early symptoms predict bipolar disorder? Evidence shows differing patterns of risk factors

Jan 12 2018 - 00:01
Two patterns of antecedent or 'prodromal' psychiatric symptoms may help to identify young persons at increased risk of developing bipolar disorder (BD), according to a new analysis in the Harvard Review of Psychiatry. The journal is published by Wolters Kluwer.
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Don't let skiing and snowboarding injuries take you downhill

Jan 12 2018 - 00:01
Skiing and snowboarding are fun winter sports. As the popularity of these winter sports continue to rise, according to a review article published in the Jan. 1, 2018, issue of the Journal of the American Academy of Orthopaedic Surgeons, the number of skier and snowboarder injuries also continues to rise.
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Penn-led team uncovers the physiology behind the hour-long mating call of midshipman fish

Jan 12 2018 - 00:01
A new study led by University of Pennsylvania researchers provides an explanation for how Pacific midshipman fish can generate a mating call that emits continuously from their bodies for a full hour, entailing 360,000 muscle contractions.
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Stingray soft robot could lead to bio-inspired robotics

Jan 12 2018 - 00:01
UCLA bioengineering professor Ali Khademhosseini has led the development of a tissue-based soft robot that mimics the biomechanics of a stingray. The new technology could lead to advances in bio-inspired robotics, regenerative medicine and medical diagnostics.
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Research suggests Trump's 'Muslim ban' produced rare shift in public opinion

Jan 12 2018 - 00:01
Visible resistance to Executive Order 13769, commonly referred to the 'Muslim ban,' may have produced a rare shift in public opinion caused by 'an influx of information portraying the ban as being at odds with egalitarian principles of American identity and religious liberty,' said researchers Loren Collingwood of the University of California, Riverside; Nazita Lajevardi of Michigan State University; and Kassra A. R. Oskooii of the University of Delaware.
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Surprising discovery could lead to better batteries

Jan 12 2018 - 00:01
A collaboration led by scientists at Brookhaven has observed the concentration of lithium inside individual nanoparticles reverse at a certain point, instead of constantly increasing. This discovery is a major step toward improving the battery life of consumer electronics
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Researchers offer new model for uncovering true HIV mortality rates in Zambia

Jan 12 2018 - 00:01
A new study that seeks to better ascertain HIV mortality rates in Zambia could provide a model for improved national and regional surveillance approaches, and ultimately, more effective HIV treatment strategies.
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Nanostructure boosts stability of organic thin-film transistors

Jan 12 2018 - 00:01
A nanostructured gate dielectric may have addressed the most significant obstacle to expanding the use of organic semiconductors for thin-film transistors. The structure, composed of a fluoropolymer layer followed by a nanolaminate made from two metal oxide materials, serves as gate dielectric and protects the organic semiconductor - which had previously been vulnerable to damage from the ambient environment.
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