VIDEO: Of course Twitter and Facebook are all the rage, but the power of social networks didn't start just in the digital age. A new study on squirrel monkeys reported in... Click here for more information. Of course Twitter and Facebook are all the rage, but the power of social networks didn't start just in the digital age. A new study on squirrel monkeys reported in Current Biology, a Cell Press publication, on June 27 finds that monkeys with the strongest social networks ...

Research focused on the regulation of the adult stem cells that line the gastrointestinal tract of Drosophila suggests new models for the study of Barrett's esophagus. Barrett's esophagus, a risk factor for esophageal cancer, is a condition in which the cells of the lower esophagus transform into stomach-like cells. In most cases this transformation has been thought to occur directly from chronic acid indigestion when stomach contents flow back up into the esophagus. A new study, published June 27, 2013 online in Cell Reports, suggests a different cause, namely a change ...

STANFORD, Calif. — A chemical code scrawled on histones — the protein husks that coat DNA in every animal or plant cell — determines which genes in that cell are turned on and which are turned off. Now, Stanford University School of Medicine researchers have taken a new step in the deciphering of that histone code. In a study to be published June 27 in Cell Reports, a team led by Thomas Rando, MD, PhD, professor of neurology and neurological sciences and chief of the Veterans Affairs Palo Alto Health Care System's neurology service, has identified characteristic differences ...

A study from Karolinska Institutet in Sweden shows, that our imagination may affect how we experience the world more than we perhaps think. What we imagine hearing or seeing "in our head" can change our actual perception. The study, which is published in the scientific journal Current Biology, sheds new light on a classic question in psychology and neuroscience – about how our brains combine information from the different senses. "We often think about the things we imagine and the things we perceive as being clearly dissociable," says Christopher Berger, doctoral student ...

As the world becomes increasingly connected, the need to ensure the proper functioning of its many underlying networks -- such as the Internet, power grids, global air transportation and ecological networks -- also is increasing. But controlling networks is very difficult. Now a Northwestern University research team has developed the first broadly applicable computational approach identifying interventions that can both rescue complex networks from the brink of failure and reprogram them to a desired task. "A fundamental property of networks is that a perturbation to ...

HOUSTON -- (June 27, 2013) – A chromosomal deletion is associated with changes in the brain's white matter and delayed language acquisition in youngsters from Southeast Asia or with ancestral connections to the region, said an international consortium led by researchers at Baylor College of Medicine. However, many such children who can be described as late-talkers may overcome early speech and language difficulties as they grow. The finding involved both cutting edge technology and two physicians with an eye for unusual clinical findings. Dr. Seema R. Lalani, a physician-scientist ...

PULLMAN, Wash.—Two university researchers say environmental restrictions have become unnecessarily restrictive and expensive—on Mars. Writing in the journal Nature Geoscience, astrobiologists Alberto Fairén of Cornell University and Dirk Schulze-Makuch of Washington State University say the NASA Office of Planetary Protection's "detailed and expensive" efforts to keep Earth microorganisms off Mars are making missions to search for life on the red planet "unviable." The researchers claim "the protocols and policies of Planetary Protection are unnecessarily restricting ...

Important new insights into how the brain compensates for temporary hearing loss during infancy, such as that commonly experienced by children with glue ear, are revealed in a research study in ferrets. The Wellcome Trust-funded study at the University of Oxford could point to new therapies for glue ear and has implications for the design of hearing aid devices. Normally, the brain works out where sounds are coming from by relying on information from both ears located on opposite sides of the head, such as differences in volume and time delay in sounds reaching the two ...

A team led by UC San Francisco researchers has discovered a sensory system in the foreleg of the fruit fly that tells male flies whether a potential mate is from a different species. The work addresses a central problem in evolution that is poorly understood: how animals of one species know not to mate with animals of other species. For the common fruit fly D. melanogaster, the answer lies in the chemoreceptor Gr32a, located on sensory neurons on the male fly's foreleg. "In nature, this sensory system would prevent the creation of hybrids that may not survive or cannot ...

LIVERMORE, Calif.— Providing auxiliary hydrogen power to docked or anchored ships may soon be added to the list of ways in which hydrogen fuel cells can provide efficient, emissions-free energy. Hydrogen fuel cells are already powering mobile lighting systems, forklifts, emergency backup systems and light-duty trucks, among other applications. Now, researchers at Sandia National Laboratories have found that hydrogen fuel cells may be both technically feasible and commercially attractive as a clean, quiet and efficient power source for ships at berth, replacing on-board ...

Let's all fist bump: Spiral galaxies like our own Milky Way appear to be much larger and more massive than previously believed, according to a new University of Colorado Boulder study by researchers using the Hubble Space Telescope. CU-Boulder Professor John Stocke, study leader, said new observations with Hubble's $70 million Cosmic Origins Spectrograph, or COS, designed by CU-Boulder show that normal spiral galaxies are surrounded by halos of gas that can extend to over 1 million light-years in diameter. The current estimated diameter of the Milky Way, for example, ...

The antibacterial effects of silver are well established. Now, researchers at Yonsei University in Seoul, Republic of Korea, have developed a technique to coat glass with a layer of silver ions that can prevent growth of pathogenic bacteria including Escherichia coli, Salmonella typhimurium and Campylobacter jejuni. The technology could be used to protect medical equipment and be particularly useful for applications in disaster recovery and the military environment. Materials scientist Se-Young Choi and colleagues Cheol-Young Kim, Yu-Ri Choi and Kwang-Mahn Kim, explain ...

Scientists have discovered the reasons behind the lifespan of some of the world's iconic mountain ranges. The study conducted by the University of Melbourne, Australia, and Aarhus University, Denmark, has revealed that interactions between landslides and erosion, caused by rivers, explains why some mountain ranges exceed their expected lifespan. Co-author Professor Mike Sandiford of the School of Earth Sciences at the University of Melbourne said the study had answered the quandary as to why there was fast erosion in active mountain ranges in the Himalayas and slow ...

Ulsan, South Korea-- A research team at Ulsan National Institute of Science and Technology (UNIST), S. Korea, found a new physical organogel electrolyte with two unique characteristics: an irreversible thermal gelation and a high value of the Li+ transference number. A Recent fire on a Boeing 787 on the ground in Boston, US, was caused by a battery failure, it resulted in the release of flammable electrolytes, heat damage and smoke. If they had used a safer electrolyte, the risk would have been reduced. Electrolytes are essential components of supercapacitors, batteries ...

If you want to measure something very precisely, such as slight variations of a length, then you are very likely to use light waves. However, many effects, such as variations of gravity, or surface forces, can only be measured using particles that have a mass. Since, according to the rules of quantum mechanics, massive particles also behave like waves, interferometers can be built in which single atoms or even entire atomic clouds are used instead of light. A team from the Vienna University of Technology has now been able to develop a Mach-Zehnder interferometer for Bose-Einstein ...

A new study reveals that all children with Crohn's disease that were examined had a commonly occurring virus – an enterovirus – in their intestines. This link has previously not been shown for this chronic inflammatory intestinal disorder. The findings are being published today in the latest issue of the international journal Clinical and Translational Gastroenterology. These findings need to be confirmed in larger studies, but they are important, as this connection has never been pointed out before. This paves the way for a better understanding of what might be involved ...

South Australia's forest industry is being significantly challenged as production levels fall due to declining export competitiveness and accordingly means for improving the industry's competitiveness are being sought. The South Australian State Government's Department for Manufacturing, Innovation, Trade, Resources and Energy (DMITRE) has invited VTT Technical Research Centre of Finland experts to undertake a study that identifies potential routes by which the increased competitiveness can be achieved. Achieving world class productivity in existing business combined ...

Research from North Carolina State University shows that software which tracks facial expressions can accurately assess the emotions of students engaged in interactive online learning and predict the effectiveness of online tutoring sessions. "This work is part of a larger effort to develop artificial intelligence software to teach students computer science," says Dr. Kristy Boyer, an assistant professor of computer science at NC State and co-author of a paper on the work. "The program, JavaTutor, will not only respond to what a student knows, but to each student's feelings ...

Engineers from Queen Mary, University of London have developed the world's most precise computer simulation of how red blood cells might travel around the body to help doctors treat people with serious circulatory problems. Red blood cells have the important task of carrying oxygen around the body but make up less than half of the total blood volume – 45 per cent in men and 40 per cent in women. Understanding how damaged red blood cells might interact with each other or their neighbouring cells could be useful in realising blood flow in patients who are diabetic or ...

With the help of phylogenetic analysis, scientists describe three new fungus species from New Zealand. The new species belong to the widespread genus Gymnopus, part of the Omphalotaceae family, the most famous representative of which, the Shiitake mushroom, is the favorite of many. The study was published in the open access journal Mycokeys. Gymnopus imbricatus, G. ceraceicola and G. hakaroa can be recognized by their strong, unpleasant odor when crushed. The smell produced by these species is most commonly described as rotting cabbage or garlic. The species grow in colonies ...

'Is it hot in here or is it just you?' Clichéd chat-up lines may serve some humans well, but other animals prefer more imaginative ways to captivate and attract potential suitors. Take, for example, the male sea lamprey, which will coax ovulating females into its nest by releasing enticing pheromones. Once comfortably in the nest, the male will then perform an interesting dance routine, rubbing the female's belly with a small bump of tissue on his back. Should the female be happy with what she sees and feels, the two will then spawn their gametes simultaneously. This unusual ...

The Internet has a major impact on the consumers' media habits. The market situation for magazines is changing in line with the continuing increase of online media content. Success will require a completely new business approach. A recent study conducted by VTT Technical Research Centre of Finland highlighted value and experientiality perceived by the consumer as the starting point and prerequisite for service development of future magazines. The digitalisation of the media has led to fragmented audiences and the rise of social media to adopt the role of an information ...

People have differing abilities to release and react to insulin depending on ethnicity, according to a new study from researchers at Lund University in Sweden, Stanford University and Kitasato University. The results show that healthy subjects of all ethnicities were able to maintain a normal glucose level, but did so in different ways. "Africans tend to have lower insulin sensitivity. However, they appear to compensate for this by releasing larger quantities of insulin. Among those of East Asian origin, the reverse appears to be the case. They have very good insulin ...

PROVIDENCE, R.I. [Brown University] — For protein-based drugs such as insulin to be taken orally rather than injected, bioengineers need to find a way to shuttle them safely through the stomach to the small intestine where they can be absorbed and distributed by the bloodstream. Progress has been slow, but in a new study, researchers report an important technological advance: They show that a "bioadhesive" coating significantly increased the intestinal uptake of polymer nanoparticles in rats and that the nanoparticles were delivered to tissues around the body in a way that ...

A new species of the peculiarly shaped spoon worms has been recently discovered in Japan, and described in the open access journal Zookeys. These animals derive their name from their elongated and spoon-like projection (the proboscis), issuing from the barrel- or sweet potato-like roundish body proper (the trunk). The new species Arhynchite hayaoi was discovered on a sandy tidal flat named Hachi-no-higata of the Seto Inland Sea, Japan. Like most spoon worms, the new species has the typical peculiar spoon shaped proboscis. The animal is of a pinkish-yellow colour, and ...