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- Bees ‘Self-Medicate’ When Infected With Some Pathogens
- Observing the galaxy distribution when the universe was half its current age
- Polar bears and PCBs
- Artificial thymus tissue enables maturation of immune cells
- Greater Traumatic Stress Linked with Elevated Inflammation in Heart Patients
- Researchers use electricity to generate alternative fuel
- Physicists Explain the Collective Motion of Particles Called Fermions
- Oscillating Gel Acts Like Artificial Skin, Giving Robots Potential Ability to “Feel”
- Novel Filter Material Could Cut Natural Gas Refining Costs
- Genes for Learning, Remembering, Forgetting: Proteins Important in Embryos Found to Change the Adult Brain
- Evolving to Fight Epidemics: Weakness Can Be an Advantage in Surviving Deadly Parasites, a New Study Shows
- On the path to age-defying therapies - Rapamycin and Calorie Restriction
- Physicists Find Patterns in New State of Matter
- How Genes Organize the Surface of the Brain
- Cassiopeia A: A Star Explodes and Turns Inside Out
- Titanium paternity test fingers Earth as moon’s sole parent
- Research finds HPV-related head & neck cancers rising, highest in middle-aged white men
- Autism Speaks Demands an Urgent, New Response to the Autism Epidemic as CDC Updates Prevalence Estimates
- Dolphins cultivate loose alliances
- Tiny sensors could aid rapid MRSA detection
| Bees ‘Self-Medicate’ When Infected With Some Pathogens Posted: 30 Mar 2012 07:05 AM PDT Research from North Carolina State University shows that honey bees “self-medicate” when their colony is infected with a harmful fungus, bringing in increased amounts of antifungal plant resins to ward off the pathogen. |
| Observing the galaxy distribution when the universe was half its current age Posted: 30 Mar 2012 06:52 AM PDT At the UK-Germany National Astronomy Meeting NAM2012, the Baryon Oscillation Spectroscopic Survey (BOSS) team today announced the most accurate measurement yet of the distribution of galaxies between five and six billion years ago. This was the key 'pivot' moment at which the expansion of the universe stopped slowing down due to gravity and started to accelerate instead, due to a mysterious force dubbed ”dark energy". |
| Posted: 30 Mar 2012 04:52 AM PDT It's never been easy to be a polar bear. They may have to go months without eating. Their preferred food, seal, requires enormous luck and patience to catch. Add to that the melting of Arctic sea ice due to climate change, and the poisoning of the Arctic by toxic chemicals, and it's easy to see why polar bears worldwide are in trouble. |
| Artificial thymus tissue enables maturation of immune cells Posted: 30 Mar 2012 04:37 AM PDT The thymus plays a key role in the body’s immune response. It is here where the T lymphocytes or T cells, a major type of immune defence cells, mature. Different types of T cells, designated to perform specific tasks, arise from progenitor cells that migrate to the thymus from the bone marrow. Researchers at the Max Planck Institute of Immunology and Epigenetics in Freiburg have generated artificial thymus tissue in a mouse embryo to enable the maturation of immune cells. In this process, they discovered which signalling molecules control the maturation of T cells. |
| Greater Traumatic Stress Linked with Elevated Inflammation in Heart Patients Posted: 29 Mar 2012 02:13 PM PDT Greater lifetime exposure to the stress of traumatic events was linked to higher levels of inflammation in a study of almost 1,000 patients with cardiovascular disease led by researchers at the San Francisco VA Medical Center and the University of California, San Francisco. |
| Researchers use electricity to generate alternative fuel Posted: 29 Mar 2012 02:08 PM PDT Imagine being able to use electricity to power your car — even if it's not an electric vehicle. Researchers at the UCLA Henry Samueli School of Engineering and Applied Science have for the first time demonstrated a method for converting carbon dioxide into liquid fuel isobutanol using electricity. |
| Physicists Explain the Collective Motion of Particles Called Fermions Posted: 29 Mar 2012 02:03 PM PDT Some people like company. Others prefer to be alone. The same holds true for the particles that constitute the matter around us: Some, called bosons, like to act in unison with others. Others, called fermions, have a mind of their own. Different as they are, both species can show "collective" behavior -- an effect similar to the wave at a baseball game, where all spectators carry out the same motion regardless of whether they like each other. |
| Oscillating Gel Acts Like Artificial Skin, Giving Robots Potential Ability to “Feel” Posted: 29 Mar 2012 01:56 PM PDT Sooner than later, robots may have the ability to “feel.” In a paper published online March 26 in Advanced Functional Materials, a team of researchers from the University of Pittsburgh and the Massachusetts Institute of Technology (MIT) demonstrated that a nonoscillating gel can be resuscitated in a fashion similar to a medical cardiopulmonary resuscitation. These findings pave the way for the development of a wide range of new applications that sense mechanical stimuli and respond chemically—a natural phenomenon few materials have been able to mimic. |
| Novel Filter Material Could Cut Natural Gas Refining Costs Posted: 29 Mar 2012 01:38 PM PDT Measurements taken by a team including National Institute of Standards and Technology (NIST) scientists show that a newly devised material has the ability to separate closely related components of natural gas from one another, a task that currently demands a good deal of energy to accomplish. The results, published March 30, 2012, in the journal Science, might improve the efficiency of the distillation process. |
| Posted: 29 Mar 2012 12:46 PM PDT Certain genes and proteins that promote growth and development of embryos also play a surprising role in sending chemical signals that help adults learn, remember, forget and perhaps become addicted, University of Utah biologists have discovered. |
| Posted: 29 Mar 2012 12:37 PM PDT When battling an epidemic of a deadly parasite, less resistance can sometimes be better than more, a new study suggests. A freshwater zooplankton species known as Daphnia dentifera endures periodic epidemics of a virulent yeast parasite that can infect more than 60 percent of the Daphnia population. During these epidemics, the Daphnia population evolves quickly, balancing infection resistance and reproduction. |
| On the path to age-defying therapies - Rapamycin and Calorie Restriction Posted: 29 Mar 2012 12:21 PM PDT One of the secrets to a longer, healthier life is simply to eat less. When subjected to calorie restriction (CR), typically defined as a 20-40% reduction in caloric intake with corresponding maintenance of proper nutrition, animals in labs not only live longer, but also have improved insulin sensitivity and glucose tolerance, both of which decline during aging. |
| Physicists Find Patterns in New State of Matter Posted: 29 Mar 2012 12:13 PM PDT Physicists at the University of California, San Diego have discovered patterns which underlie the properties of a new state of matter. |
| How Genes Organize the Surface of the Brain Posted: 29 Mar 2012 12:03 PM PDT The first atlas of the surface of the human brain based upon genetic information has been produced by a national team of scientists, led by researchers at the University of California, San Diego School of Medicine and the VA San Diego Healthcare System. The work is published in the March 30 issue of the journal Science. |
| Cassiopeia A: A Star Explodes and Turns Inside Out Posted: 29 Mar 2012 10:27 AM PDT A new X-ray study of the remains of an exploded star indicates that the supernova that disrupted the massive star may have turned it inside out in the process. Using very long observations of Cassiopeia A (or Cas A), a team of scientists has mapped the distribution of elements in the supernova remnant in unprecedented detail. This information shows where the different layers of the pre-supernova star are located three hundred years after the explosion, and provides insight into the nature of the supernova. |
| Titanium paternity test fingers Earth as moon’s sole parent Posted: 29 Mar 2012 09:55 AM PDT A new chemical analysis of lunar material collected by Apollo astronauts in the 1970s conflicts with the widely held theory that a giant collision between Earth and a Mars-sized object gave birth to the moon 4.5 billion years ago. |
| Research finds HPV-related head & neck cancers rising, highest in middle-aged white men Posted: 29 Mar 2012 09:50 AM PDT Research led by Lauren Cole, a public health graduate student, and Dr. Edward Peters, Associate Professor of Public Health and Director of the Epidemiology Program at LSU Health Sciences Center New Orleans, reports that the incidence of head and neck cancer has risen at sites associated with Human Papilloma Virus (HPV) infection, with the greatest increase among middle-aged white men. At the same time, younger, Non-Hispanic blacks experienced a substantial decrease in these cancers. |
| Posted: 29 Mar 2012 09:44 AM PDT Autism Speaks, the world’s leading autism science and advocacy organization, today called on the nation’s elected and appointed leaders to immediately develop a new, coordinated strategy to take on a national public health emergency – the autism epidemic – in the wake of a new report from the U.S. Centers for Disease Control (CDC) finding that autism is now diagnosed in a staggering 1 in every 88 American children. |
| Dolphins cultivate loose alliances Posted: 29 Mar 2012 08:13 AM PDT Dolphins behave uniquely. On the one hand, male dolphins form alliances with others; on the other hand, they live in an open social structure. Anthropologists from the University of Zurich detected this unusual behavior in the animal kingdom in dolphins in Shark Bay, Australia. |
| Tiny sensors could aid rapid MRSA detection Posted: 29 Mar 2012 08:06 AM PDT A simple test to identify MRSA in wounds could identify the superbug quickly and help prevent infection from spreading. Scientists have developed the test to show whether wounds or lesions are infected with bacteria and if MRSA is present. |
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