ScienceDaily: Latest Science News

---

• Scientists Discover Gene That 'Cancer-proofs' Naked Mole Rat's Cells
• Increased Stroke Risk From Birth Control Pills, Review Finds
• Whales Are Polite Conversationalists: Rhythms Can Be Spotted In Ocean's Chatter
• People With Heart Devices Can 'Digest' Advanced Diagnostic Technology Safely
• World's Fastest Supercomputer Models Origins Of The Unseen Universe
• Junk Food Diet Causes Rats’ Brain Pleasure Centers To Become Progressively Less Responsive
• Junk DNA Mechanism That Prevents Two Species From Reproducing Discovered
• Wolves Lose Their Predatory Edge In Mid-life, Study Shows
• Holocaust Survivors At Higher Risk For All Cancers
• Simple Measures Can Yield Big Greenhouse Gas Cuts, Scientists Say
• Why Antidepressants Don't Work For So Many
• Link Between Alcohol And Cancer Explained: Alcohol Activates Cellular Changes That Make Tumor Cells Spread
• Fat Hormone Linked To Death From Potentially Deadly Blood Infection
• Moderate Amounts Of Protein Per Meal Found Best For Building Muscle
• Do Drug Therapies Raise Risk Of Bladder Cancer?
• Weather Patterns Help Predict Dengue Fever Outbreaks
• Teacher Talk Strains Voices, Especially For Women
• Fighting Sleep: Researchers Reverse Cognitive Impairment Caused By Sleep Deprivation
• Neurologists Investigate Possible New Underlying Cause Of Multiple Sclerosis
• Catching A Killer One Spore At A Time: Monitor The Spread Of A Deadly Frog Disease
• Screening Guidelines For Breast, Cervical And Colorectal Cancers Redefined
• Scientists Map Fish Habitat And Movements At Gray's Reef Marine Sanctuary
• Sexual Problems Rarely Addressed By Internists Caring For Cancer Survivors
• Climate Events Let Ice Age Mammoths Pass Far Below 40 Degrees North Latitude
• Vitamin D Levels Are Too Low In Millions Of US Children, Latest Analysis Confirms
• Research Puts A 'Fas' To The Cause Of Programmed Cell Death
• Cutting Sodium Consumption: A Major Public Health Priority
• Northern Brown Bears Discovered Feeding On Whitefish Runs
• Is It A Visual Problem Or Alzheimer's? New Data Helps Doctors Make The Diagnosis
• Tsunami Waves Reasonably Likely To Strike Israel, Geo-archaeological Research Suggests
• Marine Lab Team Seeks To Understand Coral Bleaching
• Study Links Breast Reduction To Reduced Back Disorders
• Geologists Studying Groundwater Arsenic Levels In India Empower Bengali Women, Children
• Students, Teachers Need To Be Transculturally Literate, Expert Says
• Ancient 'Monster' Insect: 'Unicorn' Fly Never Before Observed
• First Inhabitants Of Canary Islands Were Berbers, Genetic Analysis Reveals
• Science At The Petascale: Roadrunner Results Unveiled
• Violence Between Couples Is Usually Calculated, And Does Not Result From Loss Of Control, Study Suggests
• Volcanoes Played Pivotal Role In Ancient Ice Age, Mass Extinction
• Faulty 'Wiring' In The Brain Triggers Onset Of Schizophrenia
• Robot Builds Brick Wall In New York City
• Fingerprint Technology Beats World's Toughest Tests, Including Hundreds Of Builders' Thumbs
• Exercise Makes Cigarettes Less Attractive To Smokers

Scientists Discover Gene That 'Cancer-proofs' Naked Mole Rat's Cells Posted: 27 Oct 2009 11:00 AM PDT Despite a 30-year lifespan that gives ample time for cells to grow cancerous, a small rodent species called a naked mole rat has never been found with tumors of any kind -- and now biologists think they know why.

Increased Stroke Risk From Birth Control Pills, Review Finds Posted: 27 Oct 2009 11:00 AM PDT Birth control pills nearly double the risk of stroke, according to a new review article. For women who take the Pill and also smoke, have high blood pressure or have a history of migraine headaches, the stroke risk is even higher.

Whales Are Polite Conversationalists: Rhythms Can Be Spotted In Ocean's Chatter Posted: 27 Oct 2009 11:00 AM PDT What do a West African drummer and a sperm whale have in common? According to some reports, they can both spot rhythms in the chatter of an ocean crowded with the calls of marine mammals -- a feat impossible for the untrained human ear.

People With Heart Devices Can 'Digest' Advanced Diagnostic Technology Safely Posted: 27 Oct 2009 11:00 AM PDT A new study suggests that video capsule endoscopy, a procedure that uses wireless technology in diagnosing intestinal disease, is safe for patients with heart devices.

World's Fastest Supercomputer Models Origins Of The Unseen Universe Posted: 27 Oct 2009 11:00 AM PDT A new "Roadrunner Universe" model requires a petascale computer because, like the universe, it's mind-bendingly large. The model's basic unit is a particle with a mass of approximately one billion suns (in order to sample galaxies with masses of about a trillion suns), and it includes 64 billion and more of those particles. The model is one of the largest simulations of the distribution of matter in the universe, and aims to look at galaxy-scale mass concentrations above and beyond quantities seen in state-of-the-art sky surveys.

Junk Food Diet Causes Rats’ Brain Pleasure Centers To Become Progressively Less Responsive Posted: 27 Oct 2009 11:00 AM PDT Brain pleasure centers became progressively less responsive in rats fed a diet of high-fat, high-calorie food, a new study has found. As the changes occurred, the rats developed compulsive overeating habits -- and became obese. The overeating continued even when it meant the rats had to endure an unpleasant consequence (a mild foot shock) in order to consume the food.

Junk DNA Mechanism That Prevents Two Species From Reproducing Discovered Posted: 27 Oct 2009 08:00 AM PDT Researchers have discovered a genetic mechanism in fruit flies that prevents two closely related species from reproducing, a finding that offers clues to how species evolve.

Wolves Lose Their Predatory Edge In Mid-life, Study Shows Posted: 27 Oct 2009 08:00 AM PDT Although most wolves in Yellowstone National Park live to be nearly six years old, their ability to kill prey peaks when they are two to three, according to a new study.

Holocaust Survivors At Higher Risk For All Cancers Posted: 27 Oct 2009 08:00 AM PDT Jewish survivors of World War II who were potentially exposed to the Holocaust are at a higher risk for cancer occurrence, according to a new study.

Simple Measures Can Yield Big Greenhouse Gas Cuts, Scientists Say Posted: 27 Oct 2009 08:00 AM PDT New technologies and policies that save energy, remove atmospheric carbon and limit greenhouse gas emissions are needed to fight global climate change -- but face daunting technological, economic and political hurdles, a scientist said. The good news: Basic actions taken by everyday people can yield fast savings at low cost.

Why Antidepressants Don't Work For So Many Posted: 27 Oct 2009 08:00 AM PDT More than half the people who take antidepressants for depression never get relief. The reason, according to new research, is that the cause of depression has been oversimplified and drugs designed to treat it aim at the wrong target. The medications are like arrows shot at the outer rings of a bull's eye instead of the center. The findings offer the first novel concept for antidepressant drugs in 20 years.

Link Between Alcohol And Cancer Explained: Alcohol Activates Cellular Changes That Make Tumor Cells Spread Posted: 27 Oct 2009 05:00 AM PDT Alcohol consumption has long been linked to cancer and its spread, but the underlying mechanism has never been clear. Now, researchers have identified a cellular pathway that may explain the link.

Fat Hormone Linked To Death From Potentially Deadly Blood Infection Posted: 27 Oct 2009 05:00 AM PDT A new Canadian study has found that lower-than-normal levels of a naturally-occurring fat hormone may increase the risk of death from sepsis -- an overwhelming infection of the blood which claims thousands of lives each year.

Moderate Amounts Of Protein Per Meal Found Best For Building Muscle Posted: 27 Oct 2009 05:00 AM PDT A recent study by metabolism researchers shows that only about the first 30 grams (just over one ounce) of dietary protein consumed in a meal actually produce muscle.

Do Drug Therapies Raise Risk Of Bladder Cancer? Posted: 27 Oct 2009 05:00 AM PDT In a recent study of possible triggers of cancer among northern New England residents, epidemiologists identified an enhanced risk to the bladders of patients taking drugs that suppress the immune system.

Weather Patterns Help Predict Dengue Fever Outbreaks Posted: 27 Oct 2009 05:00 AM PDT High temperatures, humidity and low wind speed are associated with high occurrence of dengue fever according to a new study.

Teacher Talk Strains Voices, Especially For Women Posted: 27 Oct 2009 05:00 AM PDT Teachers tend to spend more time speaking than most professionals, putting them at a greater risk for hurting their voices -- they're 32 times more likely to experience voice problems, according to one study. And unlike singers or actors, teachers can't take a day off when their voices hurt.

Fighting Sleep: Researchers Reverse Cognitive Impairment Caused By Sleep Deprivation Posted: 27 Oct 2009 02:00 AM PDT A research collaboration of biologists and neuroscientists has found a molecular pathway in the brain that is the cause of cognitive impairment due to sleep deprivation. Just as important, the team believes that the cognitive deficits caused by sleep deprivation, such as an inability to focus, learn or memorize, may be reversible by reducing the concentration of a specific enzyme that builds up in the hippocampus of the brain.

Neurologists Investigate Possible New Underlying Cause Of Multiple Sclerosis Posted: 27 Oct 2009 02:00 AM PDT Neurologists are beginning a research study that could overturn the prevailing wisdom on the cause of multiple sclerosis. The researchers will test the possibility that the symptoms of MS result from narrowing of the primary veins outside the skull, a condition called "chronic cerebrospinal venous insufficiency," or CCSVI.

Catching A Killer One Spore At A Time: Monitor The Spread Of A Deadly Frog Disease Posted: 27 Oct 2009 02:00 AM PDT A workshop at the Smithsonian Tropical Research Institute in Panama has nearly doubled the number of people capable of quatitatively testing for chytridiomycosis, dramatically improving the ability of conservationists and regulatory agencies to monitor the spread of one of the deadliest frog diseases on Earth.

Screening Guidelines For Breast, Cervical And Colorectal Cancers Redefined Posted: 27 Oct 2009 02:00 AM PDT Drawing on years of experience in cancer research and patient care, the University of Texas M. D. Anderson Cancer Center released today the most comprehensive, risk-based screening guidelines publicly available to date for breast, cervical and colorectal cancers.

Scientists Map Fish Habitat And Movements At Gray's Reef Marine Sanctuary Posted: 27 Oct 2009 02:00 AM PDT Two related research expeditions by NOAA scientists to track the habitat preferences and movements of fish at Gray's Reef National Marine Sanctuary may help managers protect overfished species such as red snapper and grouper.

Sexual Problems Rarely Addressed By Internists Caring For Cancer Survivors Posted: 27 Oct 2009 02:00 AM PDT Few internists who care for cancer survivors address issues of sexual dysfunction with their patients, according to a new study. More than half the internists responding to a survey indicated they rarely or never discussed sexual problems with their patients who had survived cancer.

Climate Events Let Ice Age Mammoths Pass Far Below 40 Degrees North Latitude Posted: 26 Oct 2009 11:00 PM PDT Europe's southern-most skeletal remains of a mammoth were unearthed in a moor on the 37 degree N latitude. This is considerably south of the inhospitable habitat than one usually imagines for mammoths, and for the characteristically dry and cold climate that prevailed during the ice ages in the north of Eurasia.

Vitamin D Levels Are Too Low In Millions Of US Children, Latest Analysis Confirms Posted: 26 Oct 2009 11:00 PM PDT A new study suggests that children between the ages of 1 and 11 may suffer from suboptimal levels of vitamin D, and black and Hispanic children are particularly at risk. The research builds on growing evidence that levels have fallen below what has been considered healthy.

Research Puts A 'Fas' To The Cause Of Programmed Cell Death Posted: 26 Oct 2009 11:00 PM PDT Researchers have put an end to a 10-year debate over which form of a molecular messenger called Fas ligand is responsible for killing cells during programmed cell death (also called apoptosis).

Cutting Sodium Consumption: A Major Public Health Priority Posted: 26 Oct 2009 11:00 PM PDT Reducing sodium intake is a major public health priority that must be acted upon by governments and nongovernmental organizations to improve population health, experts urge in a new article.

Northern Brown Bears Discovered Feeding On Whitefish Runs Posted: 26 Oct 2009 11:00 PM PDT It is well documented that brown (grizzly) bears prey on major runs of salmon, charr and trout. In 2007, researchers were surprised to spot a brown bear caching whitefish near a stream in the Mackenzie Delta region of the Northwest Territories. This sighting has researchers advising increased care in petroleum extraction and infrastructure development within the area.

Is It A Visual Problem Or Alzheimer's? New Data Helps Doctors Make The Diagnosis Posted: 26 Oct 2009 11:00 PM PDT Sometimes when a patient tells his ophthalmologist that he "can't see," what he really means is "I can see, but I can no longer read or write." In a minority of Alzheimer's patients the disease shows up first as problems with vision rather than memory or other cognitive functions. But diagnosis can be difficult because standard eye exams are often inconclusive for these patients.

Tsunami Waves Reasonably Likely To Strike Israel, Geo-archaeological Research Suggests Posted: 26 Oct 2009 08:00 PM PDT There is a likely chance of tsunami waves reaching the shores of Israel, says one researcher, following geoarchaeological research at the port of Caesarea. Tsunami events in the Mediterranean occur less frequently than in the Pacific Ocean, but recent findings reveal a moderate rate of recurrence.

Marine Lab Team Seeks To Understand Coral Bleaching Posted: 26 Oct 2009 08:00 PM PDT With technology similar to that used by physicians to perform magnetic resonance imaging scans, researchers are studying the metabolic activity of a pathogen shown to cause coral bleaching, a serious threat to undersea reef ecosystems worldwide.

Study Links Breast Reduction To Reduced Back Disorders Posted: 26 Oct 2009 08:00 PM PDT According to new research, women who have breast reduction surgery may be at a decreased risk for spine and other back disorders.

Geologists Studying Groundwater Arsenic Levels In India Empower Bengali Women, Children Posted: 26 Oct 2009 08:00 PM PDT Geologists are finding that the most important tools in their fieldwork on groundwater arsenic pollution are women and children armed with pamphlets and testing kits. The research examines arsenic levels in the groundwater in Bangladesh and West Bengal, India. While trying to understand how the naturally occurring arsenic gets into groundwater, the researchers are helping Bengalis identify contaminated water sources so they can make more informed decisions about where to dig wells.

Students, Teachers Need To Be Transculturally Literate, Expert Says Posted: 26 Oct 2009 08:00 PM PDT To adequately prepare today's students for tomorrow's global economy, one teacher education expert favors "transcultural education," which he defines as an experience that goes beyond the traditional rite-of-passage trip to western Europe.

Ancient 'Monster' Insect: 'Unicorn' Fly Never Before Observed Posted: 26 Oct 2009 05:00 PM PDT Just in time for Halloween, researchers have announced the discovery of a new, real-world "monster" -- what they are calling a "unicorn" fly that lived about 100 million years ago and is being described as a new family, genus and species of fly never before observed.

First Inhabitants Of Canary Islands Were Berbers, Genetic Analysis Reveals Posted: 26 Oct 2009 05:00 PM PDT Researchers have carried out molecular genetic analysis of the Y chromosome (transmitted only by males) of the aboriginal population of the Canary Islands to determine their origin and the extent to which they have survived in the current population. The results suggest a North African origin for these paternal lineages which, unlike maternal lineages, have declined to the point of being practically replaced today by European lineages.

Science At The Petascale: Roadrunner Results Unveiled Posted: 26 Oct 2009 05:00 PM PDT The world's fastest supercomputer, Roadrunner, at Los Alamos National Laboratory has completed its initial "shakedown" phase doing accelerated petascale computer modeling and simulations of a variety of unclassified, fundamental science projects.

Violence Between Couples Is Usually Calculated, And Does Not Result From Loss Of Control, Study Suggests Posted: 26 Oct 2009 05:00 PM PDT Violence between couples is usually the result of a calculated decision-making process and the partner inflicting violence will do so only as long as the price to be paid is not too high, according to a new study. "The violent partner might conceive his or her behavior as a 'loss of control', but the same individual, unsurprisingly, would not lose control in this way with a boss or friends," she explains.

Volcanoes Played Pivotal Role In Ancient Ice Age, Mass Extinction Posted: 26 Oct 2009 02:00 PM PDT Researchers here have discovered the pivotal role that volcanoes played in a deadly ice age 450 million years ago. Perhaps ironically, these volcanoes first caused global warming -- by releasing massive amounts of carbon dioxide into the atmosphere. When they stopped erupting, Earth's climate was thrown off balance, and the ice age began.

Faulty 'Wiring' In The Brain Triggers Onset Of Schizophrenia Posted: 26 Oct 2009 02:00 PM PDT A new study by researchers in the UK has discovered abnormalities in the white matter of the brain that seem to be critical for the timing of schizophrenia.

Robot Builds Brick Wall In New York City Posted: 26 Oct 2009 02:00 PM PDT A robot is currently building a looping brick wall right in the middle of New York City. Over a period of three weeks, passers-by can watch the "Pike Loop" installation in the making on a traffic island.

Fingerprint Technology Beats World's Toughest Tests, Including Hundreds Of Builders' Thumbs Posted: 26 Oct 2009 02:00 PM PDT Technology that can identify partial, distorted, scratched, smudged, or otherwise warped fingerprints in just a few seconds has just scored top marks in the world's two toughest technical fingerprint tests. The technology is also being rapidly taken up by the UK building trade who are delighted to have fingerprint technology which can cope with the often worn and ravaged builders' thumbprints.

Exercise Makes Cigarettes Less Attractive To Smokers Posted: 26 Oct 2009 02:00 PM PDT Exercise can help smokers quit because it makes cigarettes less attractive. A new study shows for the first time that exercise can lessen the power of cigarettes and smoking-related images to grab the attention of smokers.

You are subscribed to email updates from ScienceDaily: Latest Science News To stop receiving these emails, you may unsubscribe now.	Email delivery powered by Google
Google Inc., 20 West Kinzie, Chicago IL USA 60610