Ottawa (March 27, 2014) – A new expert panel report on food security in Northern Canada, has found that food insecurity among northern Aboriginal peoples requires urgent attention in order to mitigate impacts on health and well-being. Aboriginal Food Security in Northern Canada: An Assessment of the State of Knowledge, released today by the Council of Canadian Academies, addresses the diversity of experience that northern First Nations, Inuit, and Métis households and communities have with food insecurity. Aboriginal households across Canada experience food insecurity ...

Oxford, March 27, 2014 - A future computer might be a lot slimier than the solid silicon devices we have today. In a study published in the journal Materials Today, European researchers reveal details of logic units built using living slime molds, which might act as the building blocks for computing devices and sensors. Andrew Adamatzky (University of the West of England, Bristol, UK) and Theresa Schubert (Bauhaus-University Weimar, Germany) have constructed logical circuits that exploit networks of interconnected slime mold tubes to process information. One is more ...

New research finds that online social behavior isn't replacing offline social behavior in the gaming community. Instead, online gaming is expanding players' social lives. The study was done by researchers at North Carolina State University, York University and the University of Ontario Institute of Technology. "Gamers aren't the antisocial basement-dwellers we see in pop culture stereotypes, they're highly social people," says Dr. Nick Taylor, an assistant professor of communication at NC State and lead author of a paper on the study. "This won't be a surprise to the ...

ITHACA, N.Y. – Those hoping to dilute Americans' taste for soda, energy drinks, sweetened tea, and other sugary beverages should take their quest to school lunchrooms rather than legislative chambers, according to a recent study by media and health policy experts. Soda taxes and beverage portion size restrictions were unpalatable to the 1,319 U.S. adults questioned in a fall 2012 survey as part of a study reported online this month in the journal Preventive Medicine. Adding front-of-package nutrition labels and removing sugary beverages from school environments garnered ...

NAIROBI, Kenya. (27 March 2014) ----Agroforestry, combined with land and water management practices that increase agricultural productivity, can save watersheds from degradation. A study conducted by the World Agroforestry Centre (ICRAF) in the Gabayan watershed in eastern Bohol, Philippines, has shown that agroforestry systems create a more sustainably managed watershed that allows people living there to benefit from the ecosystem. The benefits include higher crop yields, increased income and resilience to climate change. Agroforestry is an integrated land-use management ...

This news release is available in German. With DESY's X-ray light source PETRA III, Danish scientists observed the growth of nanoparticles live. The study shows how tungsten oxide nanoparticles are forming from solution. These particles are used for example for smart windows, which become opaque at the flick of a switch, and they are also used in particular solar cells. The team around lead author Dr. Dipankar Saha from Århus University present their observations in the scientific journal Angewandte Chemie – International Edition. For their investigation, the scientists ...

The states in which elementary particles, such as photons, can be found have properties which are beyond common sense. Superpositions are produced, such as the possibility of being in two places at once, which defies intuition. In addition, when two particles are entangled a connection is generated: measuring the state of one (whether they are in one place or another, or spinning one way or another, for example) affects the state of the other particle instantly, no matter how far away from each other they are. Scientists have spent years combining both properties to construct ...

While carbon dioxide is typically painted as the bad boy of greenhouse gases, methane is roughly 30 times more potent as a heat-trapping gas. New research in the journal Nature indicates that for each degree that the Earth's temperature rises, the amount of methane entering the atmosphere from microorganisms dwelling in lake sediment and freshwater wetlands — the primary sources of the gas — will increase several times. As temperatures rise, the relative increase of methane emissions will outpace that of carbon dioxide from these sources, the researchers report. The findings ...

Field studies covering three continents show that temperature has an unexpectedly important effect on food-web structure, while the relationship between predator and prey is crucial for the food-web dynamics and thereby the entire ecosystem. Temperature is decisive 'We have gathered data on all animals and plants characterising the arctic tundra in seven different areas. This has allowed us to generate a picture of how food chains vary over a very large geographical (and, with it, climatic) gradient. Therefore, and for the first time, we can offer an explanation of ...

Montréal, March 27, 2014 – IRCM researchers led by Javier M. Di Noia, PhD, uncovered a new function of AID, a crucial enzyme for the immune response. The discovery, recently published by the scientific journal Proceedings of the National Academy of Sciences (PNAS), helps explain a rare genetic disorder that causes an immunodeficiency syndrome. The Montréal research team studies the enzyme AID, or activation-induced deaminase, that can be found in B lymphocytes (the group of white blood cells whose main function is to produce antibodies to fight against infections). AID ...

UPTON, NY-Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have made the first 3D observations of how the structure of a lithium-ion battery anode evolves at the nanoscale in a real battery cell as it discharges and recharges. The details of this research, described in a paper published in Angewandte Chemie, could point to new ways to engineer battery materials to increase the capacity and lifetime of rechargeable batteries. "This work offers a direct way to look inside the electrochemical reaction of batteries at the nanoscale to better understand ...

A lingering recession, the elimination of Medicaid dental reimbursements and a glut of established dentists in wealthier, populated areas may explain why more new dentists are practicing outside California, according to a new policy brief from the UCLA Center for Health Policy Research. "Good access to dental care depends on having a robust supply of new dentists in California," said Nadereh Pourat, director of research at the center and lead author of the study. "We need a new generation of dentists to replace the many dentists who are close to retirement." ...

Support for natural history – the study of organisms, how and where they live and how they interact with their environment – appears to be in steep decline in developed countries, according to Joshua Tewksbury, a University of Washington professor and WWF International scientist. "Yet natural history provides essential knowledge for fields as varied as human health, food security, conservation, land management and recreation," he said. Tewksbury and 16 other scientists from across North America outline the importance to society and call for a revitalization of the practice ...

Large amounts of data are produced when industrial companies monitor their facilities. Sensors check temperature, pressure, power, or energy use data. "If you're scanning to the nearest second, it's easy to rack up several terabytes of information in under a week," says Dr. Olaf Sauer from the automation business unit at the IOSB. But often there is a lack of suitable methods to evaluate the information. "Today's operators use only about seven percent of this data for maintenance or protection from breakdowns," adds Sauer. At the Hannover Messe Digital Factory, IOSB developers ...

What is now considered to be the "right" amount of the essential nutrient, choline, might actually be "wrong," depending on who you are. That's because scientists have found that the "right" amount of choline needed by an individual is influenced by a wide range of factors, including gender, life stage, race and ethnicity of the individual. This means that using the current one-size-fits-all approach to determining a person's vitamin and mineral needs may leave them in less than optimal health. Choline is an essential nutrient used by the body to construct cell membranes ...

Scientists have for the first time witnessed the mechanism behind explosive energy releases in the Sun's atmosphere, confirming new theories about how solar flares are created. New footage put together by an international team led by University of Cambridge researchers shows how entangled magnetic field lines looping from the Sun's surface slip around each other and lead to an eruption 35 times the size of the Earth and an explosive release of magnetic energy into space. The discoveries of a gigantic energy build-up bring us a step closer to predicting when and where ...

WASHINGTON – Military men who are targets of frightening and threatening sexual harassment may experience more distress and work performance problems than military women who face the same treatment, according to research published by the American Psychological Association. A total of 52 percent of military women said they had been sexually harassed compared with 19 percent of military men, and women more frequently reported they were very frightened by the experience than their male colleagues, according to a study published online in APA's Journal of Occupational Health ...

Researchers at the University of Adelaide have confirmed that if current trends continue, Australia's Generation X will overtake Baby Boomers for poor health, including rates of obesity and diabetes, which could have huge implications for healthcare and the workforce. In a paper published in the online journal PLOS ONE, University of Adelaide researchers compared the health status of Baby Boomers (born from 1946–1965) and Generation X (1966–1980) at the same age range of 25-44 years. They found Generation X had significantly poorer levels of self-rated health, and higher ...

The Chinese compound Kaixin Jieyu Fang can be used to treat vascular depression; however, the underlying mechanism remains unclear. Dr. Ying Zhang and co-workers from Guang'anmen Hospital, China Academy of Chinese Medical Sciences in China This study established a rat model of chronic cerebral ischemia-caused white matter damage by ligation of the bilateral common carotid arteries. Rats received daily intragastric administration of a suspension of Kaixin Jieyu Fang powder. Kaixin Jieyu Fang was made from two prescriptions of Kaixin San and Sini San supplemented with Radix ...

Researchers and the public can now have immediate access to data underlying discovery of new species of life on Earth, under a new streamlined system linking taxonomic research with open data publication. The partnership paves the way for unlocking and preserving a wealth of 'small data' backing up research conclusions, which often become lost within a few years of an article's publication in an academic journal. In the first example of the new collaboration in action, the Biodiversity Data Journal carries a peer-reviewed description of a new species of spider discovered ...

Acupuncture is more effective than oral antidepressants in improving depressive symptoms, and produces fewer side effects than tricyclic antidepressants. Despite the continued development of antidepressants and alternative/synergistic therapies, major depressive disorder has not been comprehensively recognized and treatment outcome is often insufficient. An epidemiological study addressing depression showed that poor recognition and treatment are largely linked to the lack of an accurate assessment tool and to patients' economic situation. Prof. Yong Huang and team from ...

Levels of a key hormone in the blood may be important for the survival prospects of newborn animals, a study of wild deer suggests. First-born male deer that have relatively high levels of the male hormone testosterone are less likely to survive their first year compared with their peers, the research shows. Scientists say their findings suggest that high testosterone levels represent a risk to newborns which, when coupled with a new mother's inexperience, lowers their chances of survival. High levels of testosterone in adult male animals, including deer, are known ...

This news release is available in German. Subtle interactions of electrons and light make them so valuable for technology: ultra-thin systems of semiconductor layers can turn electrical voltage into light. But they can also be used the other way around and serve as light detectors. Until now, it has been hard to couple light into these layered semiconductor systems. Scientists at Vienna University of Technology solved this problem. They used metamaterials, which are able to manipulate light in the terahertz range due to their special microscopic structure. Customized ...

Researchers at the Universities of Southampton, Plymouth and Exeter used the test to assess the levels of epigenetic switches in the PGC1a gene – a gene that regulates fat storage in the body. Epigenetic switches take place through a chemical change called DNA methylation, which controls how genes work and is set during early life. The Southampton team found that the test, when carried out on children at five years old, differentiates between children with a high body fat and those with a low body fat when they were older. Results showed that a rise in DNA methylation ...

This news release is available in German. Predictive maintenance of hard-to-access plants, no unnecessary oil changes, no unnecessary laboratory costs and less environmental impact. These are just some of the benefits offered by a new system that can monitor the condition of lubricating oils, hydraulic oils and other fluids in industrial installations without interrupting ongoing operations. The method was developed by engineers from Saarbrücken in collaboration with project partners. The compact sensor system is available as a portable unit or can be built into ...