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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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Climate's effects on flowers critical for bumble bees

Sep 29 2017 - 00:09
In a study that shows the importance of climate change on critical pollinators, North Carolina State University researchers found that earlier and longer flowering seasons can have poor effects on the bumble bees that rely on these flowers to live and thrive.
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New proton 'starter' for optogenetics

Sep 29 2017 - 00:09
Researchers described a new optogenetic tool -- a protein called NsXeR, which belongs to the class of xenorhodopsins. When exposed to light, it can activate individual neurons, making them send set signals to the nervous system. Apart from applications in nervous system research, xenorhodopsins may also take over muscle cell control.
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Antarctica: Return of the Weddell polynya supports Kiel climate model

Sep 29 2017 - 00:09
After 40 years, a large ice-free area appears again in the Southern Ocean in mid-winter.
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Special focus issue: 'Bioanalysis of biopharmaceuticals'

Sep 29 2017 - 00:09
With an increased focus on recent advances in the analysis and development of biopharmaceuticals, Bioanalysis will be featuring a themed issue dedicated to 'Bioanalysis of Biopharmaceuticals'
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New med-tech zinc sensor developed

Sep 29 2017 - 00:09
A new zinc sensor has been developed by researchers, which will allow for a deeper understanding of the dynamic roles that metal ions play in regulating health and disease in the living body.The research, published in the journal ACS Omega reports that the newly designed chemical sensor can detect and measure zinc levels in cells. It also has the functionality and portability to take continuous or repeated measurements within a single biological sample.
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Study shows MRIs are safe for patients with wide variety of pacemakers, defibrillators

Sep 29 2017 - 00:09
Magnetic resonance imaging appears to be safe for patients with cardiac implantable electronic devices, even for chest imaging, according to a new study.
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Study ranks safety, effectiveness of cognitive enhancers for Alzheimer's

Sep 29 2017 - 00:09
A new study ranking the safety and effectiveness of four drugs taken to enhance concentration, memory, alertness and moods, found that donepezil was most likely to effectively improve cognition in patients with Alzheimer's disease.
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How the lungs of premature babies can undergo damage

Sep 29 2017 - 00:09
Premature babies that need ventilation to support their breathing often suffer from a condition known as bronchopulmonary dysplasia. Researchers at the Helmholtz Zentrum München, partner in the German Center for Lung Research (DZL), have now discovered a molecular mechanism that plays a key role in the development of the disease. The study has been published in 'EMBO Molecular Medicine'.
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New regulator of liver metabolism discovered

Sep 29 2017 - 00:09
Researchers from Charité - Universitätsmedizin Berlin have identified an enzyme that has a major effect on glucose utilization in liver cells. The enzyme, retinol saturase, helps these cells adapt to variations in glucose levels. However, when glucose levels are consistently too high, retinol saturase appears to exert a damaging effect on cells. Results from this study have been published in the journal Nature Communications*.
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Frequent sauna bathing keeps blood pressure in check

Sep 29 2017 - 00:09
Frequent sauna bathing reduces the risk of elevated blood pressure, according to an extensive follow-up population-based study carried out at the University of Eastern Finland. The risk of developing elevated blood pressure was nearly 50 percent lower among men who had a sauna 4-7 times a week compared to men who had a sauna only once a week. These findings were published recently in the American Journal of Hypertension.
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Elderly who have trouble identifying odors face risk of dementia

Sep 29 2017 - 00:09
A long-term study of nearly 3,000 older adults found that those who could not identify at least four out of five common odors were more than twice as likely as those with a normal sense of smell to develop dementia within five years. About 14 percent could name just three, 5 percent could identify only two, and 2 percent could name just one. One percent of the study subjects were not able to identify a single scent.
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China builds world's first space-ground integrated quantum communication network

Sep 29 2017 - 00:09
The first unbreakable intercontinental message was sent through a space-based quantum communication network to President BAI Chunli of the Chinese Academy of Sciences (CAS) in Beijing from President Anton Zeilinger of the Austrian Academy of Sciences in Vienna on Sept. 29, enabling Chinese scientists the first to realize space-ground quantum key distribution (QKD).
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Why do we fall asleep when bored?

Sep 29 2017 - 00:09
University of Tsukuba researcher discovers why we have the tendency to fall asleep in the absence of motivating stimuli, i.e., when bored.
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A stinging report: FSU reserach shows climate change a major threat to bumble bees

Sep 29 2017 - 00:09
New research from a team of Florida State University scientists and their collaborators is helping to explain the link between a changing global climate and a dramatic decline in bumble bee populations worldwide.
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Nation's public cord blood banks provide benefits, despite drop in use, study finds

Sep 29 2017 - 00:09
More than a decade ago the federal government helped support the creation of public umbilical cord banks to collect and store a genetically diverse set of stem cells for clinical care and research. While use of stem cells from the banks has been dropping, the system still deserves support and can be bolstered in several ways to improve its usefulness, according to a new study.
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