153 articles from WEDNESDAY 11.9.2019
Ccrystal structure of DNA-stabilized silver nanocluster
- ScienceDaily
- 19/9/11 17:30
Nanoclusters are little 'heaps' of a few atoms that often have interesting optical properties and could become useful probes for imaging processes in areas such as biomedicine and diagnostics. Researchers have introduced a nanocluster of 16 silver atoms stabilized by a wrapping of DNA strands. Using X-ray analysis, they were able to determine the crystal structure and identify important...
A smart artificial hand for amputees merges user and robotic control
- ScienceDaily
- 19/9/11 17:30
Scientists have successfully tested new neuroprosthetic technology that combines robotic control with users' voluntary control, opening avenues in the new interdisciplinary field of shared control for neuroprosthetic technologies.
It's all a blur.....why stripes hide moving prey
- ScienceDaily
- 19/9/11 17:30
Scientists have shown that patterns -- particularly stripes which are easy to spot when an animal is still -- can also help conceal speeding prey.
Burying beetle larvae know the best time to beg for food
- ScienceDaily
- 19/9/11 17:30
It's easy to imagine an adult bird standing over youngsters with mouths open wide for a pre-mashed meal. It's more difficult to picture a beetle doing this, but the burying beetle Nicrophorus quadripunctatus feeds its young by the same mouth-to-mouth regurgitation technique. Researchers found that burying beetle larvae can sense when the mother beetles emit a pheromone, 2-phenoxyethanol, when they...
Increasing number of adolescents receive depression diagnosis
- ScienceDaily
- 19/9/11 17:29
The proportion of young people in Finland diagnosed with depression in specialized services is increasing, showed a study based on an extensive set of national data. An increasing number of adolescents seek and get help, but the increase in service use burdens specialiszd services.
Universal code in our brains for what we find beautiful
- ScienceDaily
- 19/9/11 17:29
A network in the human brain involved in inner thoughts and self-referential mental processing may contain a universal code for whether we find something to be beautiful.
Project Oberon: UK eyes cluster of military radar satellites
Defence chiefs want a batch of small spacecraft able to see the Earth's surface in all weathers.
The most common cancer for men is still a mystery to science — but 9/11 first responders are giving researchers fresh clues
Prostate cancer is one of the deadliest that men in the US get. A new study of 9/11 first responders with prostate cancers shows how it may...
'Planting water' is possible -- against aridity and droughts
- ScienceDaily
- 19/9/11 16:16
Scientists have developed a mathematical model that can reflect the complex interplays between vegetation, soil and water regimes. They show, for example, that in beech forests water is increasingly cycled between soil and vegetation to increase evaporation to the atmosphere, while grass cover promotes groundwater recharge.
Calcium channel blockers may be effective in treating memory loss in Alzheimer's disease
- ScienceDaily
- 19/9/11 16:16
Alzheimer's disease (AD) is the most common cause of dementia but the changes in brain cell function underlying memory loss remains poorly understood. Researchers at the University of Bristol have identified that calcium channel blockers may be effective in treating memory loss.
Discovering biological mechanisms enabling pianists to achieve skillful fingering
- ScienceDaily
- 19/9/11 16:15
Researchers discovered a sensorimotor function integration mechanism that enables the skillful fingering of pianists. The group developed a system to produce tactile and proprioceptive sensation in the fingers with an electric current stimulator and an exoskeletal robot hand and developed an assessment system that evaluated the processing of each neural information in the cerebral cortex using...
Brain: How to optimize decision making?
- ScienceDaily
- 19/9/11 16:15
Our brains are constantly faced with different choices. Why is it so difficult to make up our mind when faced with two or more choices? Neuroscientists have developed a mathematical model of the optimal choice strategy. They demonstrated that optimal decisions must be based not on the true value of the possible choices but on the difference in value between them.
Type 2 diabetes is not just about insulin
- ScienceDaily
- 19/9/11 16:15
Obesity, by promoting the resistance to the action of insulin, is a major risk factor of diabetes. Insulin imbalance may not be the only cause of the onset of diabetes. Researchers have now highlighted another mechanism: the liver appears to have the ability to produce a significant amount of glucose outside of any hormonal signal. In patients with excess liver fat, this overproduction of glucose...
Advanced breeding paves the way for disease-resistant beans
- ScienceDaily
- 19/9/11 16:15
Researchers are involved in the development and implementation of a method to efficiently breed for disease-resistant beans in different regions of the world. Their work will help to improve the livelihood and food security of smallholders in developing countries.
How much photovoltaics (PV) would be needed to power the world sustainably?
- ScienceDaily
- 19/9/11 16:15
The International Energy Agency has dubbed increased global cooling demand as one of the most critical blind spots in today's energy debate.
AI neural network detects heart failure from single heartbeat
- ScienceDaily
- 19/9/11 16:15
Researchers have developed a neural network approach that can accurately identify congestive heart failure with 100% accuracy through analysis of just one raw electrocardiogram (ECG) heartbeat, a new study reports.
Scientists identify rare evolutionary intermediates to understand the origin of eukaryotes
- ScienceDaily
- 19/9/11 16:15
A new study provides a key insight into a milestone event in the early evolution of life on Earth -- the origin of the cell nucleus and complex cells. Scientists peered deep inside current living cells, known as Archaea - the organisms that are believed to most closely resemble the ancient intermediates between bacteria and the more complex cells that we now know as eukaryotic cells.
Mako shark tracking off west coast reveals 'impressive' memory and navigation
- ScienceDaily
- 19/9/11 16:15
The largest effort ever to tag and track shortfin mako sharks off the West Coast has found that they can travel nearly 12,000 miles in a year. The sharks range far offshore, but regularly return to productive waters off Southern California, an important feeding and nursery area for the species.
This 9/11 first responder had his family’s DNA tattooed into his skin so that he's never alone while undergoing chemotherapy
Former NYPD officer Johnny Walker is dealing with stage 4 colon cancer after responding to the call on September 11,...
Caregiver stress: The crucial, often unrecognized byproduct of chronic disease
- ScienceDaily
- 19/9/11 15:14
There is growing evidence that caregivers of patients with cardiovascular disease (CVD) are vulnerable to developing their own poor cardiovascular health. Investigators report on a proof-of-concept couples-based intervention in a cardiac rehabilitation setting. This intervention has shown potential for reducing caregiver distress, and future studies are evaluating its impact on both caregivers'...
Opioid treatment for teens? Medications can help
- ScienceDaily
- 19/9/11 15:13
Teens who misuse prescription or illicit opioids might benefit from opioid treatment medications, according to a new study. An estimated 900 adolescents started to misuse opioid painkillers every day in 2017, and some of them turned to cheaper and more potent illegal opioids like heroin. Yet little is known about the effectiveness of opioid medications -- the recommended treatment for adults with...
Swapping pollinators reduces species diversity
- ScienceDaily
- 19/9/11 15:13
Ecologists demonstrate that abandoning one pollinator for another to realize immediate benefits could compromise a flower's long-term survival. The research provides novel insights into fundamental biological processes that ultimately influence food security.