ScienceDaily: Latest Science News

Bad Sign For Global Warming: Thawing Permafrost Holds Vast Carbon Pool Posted: 07 Sep 2008 07:00 PM CDT Permafrost blanketing the northern hemisphere contains more than twice the amount of carbon in the atmosphere, making it a potentially mammoth contributor to global climate change depending on how quickly it thaws

Scientists Identify Genetic Link That May Neutralize HIV Posted: 07 Sep 2008 07:00 PM CDT A genetic target may provide a significant new opportunity for vaccine or therapeutic development. Scientists have uncovered new evidence that strengthens the link between a host-cell gene called Apobec3 and the production of neutralizing antibodies to retroviruses. The finding adds a new dimension to the set of possible explanations for why most people who are infected with HIV do not make neutralizing antibodies that effectively fight the virus.

Artificial Meadows And Robot Spiders Reveal Secret Life Of Bees Posted: 07 Sep 2008 07:00 PM CDT Many animals learn to avoid being eaten by predators. Now ecologists have discovered that bumblebees can even learn to outwit color-changing crab spiders. Bumblebees learn to avoid camouflaged predators by sacrificing foraging speed for predator detection, according to new research.

Defibrillators Save Lives, Don't Diminish Quality Of Life, Researchers Find Posted: 07 Sep 2008 07:00 PM CDT Implantable cardioverter-defibrillators reduce the risk of death from sudden cardiac arrest among patients with heart failure, and they do so without significantly altering a person's quality of life, say researchers from Duke University Medical Center.

A Light Bulb And A Few Chemicals: Scientists Find A Way To Help Make New Reactions Posted: 07 Sep 2008 07:00 PM CDT Scientists have discovered a way of stimulating organic molecules that they expect will prompt researchers to create materials from new kinds of chemical reactions. The method of catalysis, when used, could lead to groundbreaking kinds of drugs and agricultural chemicals and will provide a shortcut to standard multi-step methods of chemical production.

Sexologists Can Infer A Woman's History of Orgasms By The Way She Walks Posted: 07 Sep 2008 07:00 PM CDT A new study found that trained sexologists could infer a woman's history of vaginal orgasm by observing the way she walks.

Fatal Protein Interactions May Explain Neurological Diseases Posted: 07 Sep 2008 01:00 PM CDT Researchers have investigated how proteins involved in neurodegenerative diseases such as Alzheimer's and Parkinson's disease interact to form unique complexes. Their findings explain why Alzheimer's patients might develop Parkinson's, and vice versa. The new and unique molecular structures they discovered can now be used to model and develop new drugs for these devastating neurological diseases.

Cardiac Cell Transplant Studies Show Promise In Cardiac Tissue Repair Posted: 07 Sep 2008 01:00 PM CDT Two studies involving cardiac cell transplantation have shown an evolving role for bone marrow cells in cardiac cell therapy. The implantation of heart muscle cells and subsequent restoration of cardiac function was enhanced when bone marrow cells were implanted along with the cardiomyocytes. Researchers also found that mesenchymal stem cells derived from bone marrow provided an advantage over fetal amniotic fluid derived cells when differentiating into appropriate cells for cardiac cell transplantation and repair.

Major Flooding Risk Could Span Decades After Chinese Earthquake Posted: 07 Sep 2008 01:00 PM CDT Up to 20 million people, thousands of whom are already displaced from their homes following the devastating Chinese earthquake, are at increased risk from flooding and major power shortages in the massive Sichuan Basin over the next few decades and possibly centuries. A geographer from Durham University makes the observations on returning from carrying out investigative fieldwork in the China earthquake zone.

What A Sleep Study Can Reveal About Fibromyalgia Posted: 07 Sep 2008 01:00 PM CDT Research engineers and sleep medicine specialists from two Michigan universities have joined technical and clinical hands to put innovative technologies to work in the sleep lab.

Plant-parasitic Nematode Genome Sequenced Posted: 07 Sep 2008 01:00 PM CDT The annotated genome of one of the most destructive nematodes -- Meloidogyne incognita -- the southern root-knot nematode, has just been published in the journal Nature Biotechnology.

Chemobrain Treatment? Potential Remedy For The 'Mental Fog' In Cancer Patients Posted: 07 Sep 2008 01:00 PM CDT Cancer patients have complained for years about the mental fog known as chemobrain. Now in animal studies, researchers have discovered that injections of N-acetyl cysteine, an antioxidant, can prevent the memory loss that breast cancer chemotherapy drugs sometimes induce. .

Exercise Reduces Damage After Therapeutic Irradiation To The Brain Posted: 07 Sep 2008 07:00 AM CDT Researchers has shown for the first time that exercise helps restore stem cell growth and improves behavior in young mice that suffered damage to the brain induced by a clinically relevant dose of radiation. The researchers believe that these results are also applicable to children that have suffered damage due to radiotherapy of brain tumors.

A Virtuous Cycle: Safety In Numbers For Bicycle Riders Posted: 07 Sep 2008 07:00 AM CDT It seems paradoxical but the more people ride bicycles on our city streets, the less likely they are to be injured in traffic accidents. International research reveals that as cycling participation increases, a cyclist is far less likely to collide with a motor vehicle or suffer injury and death - and what's true for cyclists is true for pedestrians.

Add-On Therapy Improves Depressive Symptoms In Bipolar Disorder Posted: 07 Sep 2008 07:00 AM CDT Lingering depression is a serious and common problem in bipolar disorder, and does not resolve well with existing treatments. Because individuals with both depression and bipolar disorder experience a glutathione deficiency, an antioxidant that protects cells from toxins, researchers sought to evaluate whether N-acetyl cysteine (NAC), an over-the-counter supplement that increases brain glutathione, might help alleviate depressive symptoms.

Oxidative Stress: Mechanism Of Cell Death Clarified Posted: 07 Sep 2008 07:00 AM CDT Scientists have decrypted the molecular mechanism through which the death of cells is caused by oxidative stress. This knowledge opens novel perspectives to systematically explore the benefit of targeted therapeutic interventions in the cure of aging and stress-related degenerative diseases.

Social Psychology Can Be Used To Understand Nuclear Restraint Posted: 07 Sep 2008 07:00 AM CDT Social psychology is the study of how people and groups interact. A new study shows how social psychology can help us better understand the puzzle of nuclear restraint and uses the case of Japan to illustrate social psychology on nuclear decision-making.

Encounter Of A Different Kind: Rosetta Observes Asteroid At Close Quarters Posted: 06 Sep 2008 07:00 PM CDT The European Space Agency's comet chaser, Rosetta, has flown by a small body in the main asteroid belt, asteroid Steins, collecting a wealth of information about this rare type of minor Solar System body.

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