ScienceDaily: Latest Science News

---

• Magnetic Super-atoms Discovered
• Newborn Weights Affected By Environmental Contaminants
• If The Shoe Flits, Duck: Real-life Example Of Humans' Dual Vision System
• Gene Vital To Early Embryonic Cells Forming A Normal Heart And Skull
• Reengineering A Food Poisoning Microbe To Carry Medicines And Vaccines
• College Drinking Problems, Deaths On The Rise
• New Exotic Material Could Revolutionize Electronics
• New Method Separates Cancer Cells From Normal Cells
• Deforestation Causes 'Boom-and-bust' Development In The Amazon
• Genes That Regulate Human Circadian Rhythm Significantly Disturbed In Individuals With Arthritis
• Method To Precisely Glue Particles Together On The Micro- And Nano-scale Created
• Neural Mechanism Supports Survival In An Uncertain World
• Is The Sky The Limit For Wind Power? High-flying Kites Could Light Up New York
• Popular Alzheimer's Theory May Be False Trail
• Protein Regulates Movement Of Mitochondria In Brain Cells
• New Strategy Proposed For Designing Antibody-based HIV Vaccine
• Do And Don't Of Building In Hurricane-prone Areas
• Brain Energy Use Key To Understanding Consciousness
• Meteorite Grains Divulge Earth's Cosmic Roots
• Young Adults Not Drinking Enough Milk, Study Finds
• Transparent Solar Cells Made For Windows
• How A Protein Helps Nerve Cells Recycle Synaptic Vesicles
• Algorithm Can Get Most Pollution Control For The Money
• Extended Or Shortened Sleep Duration Linked To Weight Gain
• What Limits The Size Of Birds?
• Two Gene Locations Linked To Multiple Sclerosis Discovered
• Computer System For Dementia Patients
• Relationship Between Bone Density And Erosion In Arthritis
• The Dawn Of Quantum Applications
• FDA Warnings Led To Unintended Changes In Depression Diagnosis, New Report Finds
• Researchers Test Nanoparticle To Treat Cardiovascular Disease In Mice
• Mouse Experiments Shed Light On Age Effects In Arthritis
• Dentures: 3D Digital Images Of Tooth Contours May Replace Plaster Models
• Protein Linked To Alzheimer's Disease Doesn't Act Alone
• Two Signals -- From Within And Out Of Cell -- Specify Motor Neuron Differentiation
• Older Adults Less Affected By Sleep Deprivation Than Younger Adults During Cognitive Performance
• How Prion Protein Damages Brain Cells: Findings Could Advance Understanding Of Mad Cow Disease, Related Disorders
• Wine In A Box? Think 'Good' Not 'Gauche'
• Natural Hormone Offers Hope For Treatment Of The Metabolic Syndrome
• Scientists Create Custom 3-dimensional Structures With 'DNA Origami'
• Less Than Half Of Older Americans Get The Recommended 8 Hours Of Nightly Sleep
• Marijuana Damages DNA And May Cause Cancer, New Test Reveals
• Human Embryonic Stem Cells Could Safely Treat Eye Diseases, Research Suggests
• Siberian Jays Use Complex Communication To Mob Predators
• Hormone Therapy May Confer More Aggressive Properties To Prostate Tumors
• Fire Mitigation Work In Western US Misplaced, Says New Study
• First-time Moms' Exhaustion Caused By Sleep Fragmentation, Rather Than Timing Of Sleep

Magnetic Super-atoms Discovered Posted: 16 Jun 2009 11:00 AM PDT Scientists have discovered a "magnetic superatom" -- a stable cluster of atoms that can mimic different elements of the periodic table -- that one day may be used to create molecular electronic devices for the next generation of faster computers with larger memory storage.

Newborn Weights Affected By Environmental Contaminants Posted: 16 Jun 2009 11:00 AM PDT Recent epidemiological studies have revealed an increase in the frequency of genital malformations in male newborns (e.g., un-descended testes) and a decrease in male fertility.

If The Shoe Flits, Duck: Real-life Example Of Humans' Dual Vision System Posted: 16 Jun 2009 11:00 AM PDT The reactions of former President George W. Bush and Iraq's Prime Minister Nouri al-Maliki when an Iraqi reporter flung his shoes toward the two men during a Baghdad news conference confirmed the results of an experiment being conducted by neuroscientists.

Gene Vital To Early Embryonic Cells Forming A Normal Heart And Skull Posted: 16 Jun 2009 11:00 AM PDT New research highlights the critical role a certain gene and its protein play during early embryonic development on formation of a normal heart and skull.

Reengineering A Food Poisoning Microbe To Carry Medicines And Vaccines Posted: 16 Jun 2009 11:00 AM PDT Scientists have used genetic engineering to tame one of the most deadly food poisoning microbes and turn it into a potential new way of giving patients medicine and vaccines in pills rather than injections.

College Drinking Problems, Deaths On The Rise Posted: 16 Jun 2009 11:00 AM PDT Alcohol-related deaths, heavy drinking episodes and drunk driving have all been on the rise on college campuses over the past decade, a new government study shows.

New Exotic Material Could Revolutionize Electronics Posted: 16 Jun 2009 08:00 AM PDT Move over, silicon -- it may be time to give the Valley a new name. Physicists have confirmed the existence of a type of material that could one day provide dramatically faster, more efficient computer chips.

New Method Separates Cancer Cells From Normal Cells Posted: 16 Jun 2009 08:00 AM PDT Researchers have demonstrated a novel and simple method that can direct and separate cancer cells from normal cells. The device, which takes advantage of a physical principle called ratcheting, is a very tiny system of channels for cell locomotion. Based on this method, they have proposed that cancer cells possibly could be sequestered permanently in a sort of "cancer trap" made of implantable and biodegradable materials.

Deforestation Causes 'Boom-and-bust' Development In The Amazon Posted: 16 Jun 2009 08:00 AM PDT Clearing the Amazon rainforest increases Brazilian communities' wealth and quality of life, but these improvements are short-lived, according to new research published in Science. The study shows that levels of development revert back to well below national average levels when the loggers and land clearers move on.

Genes That Regulate Human Circadian Rhythm Significantly Disturbed In Individuals With Arthritis Posted: 16 Jun 2009 08:00 AM PDT The genes that regulate human circadian rhythm, or 'the body clock', are significantly disturbed in individuals with arthritis, according to a new study. Notably, a specific genetic pathway has been identified as responsible for interactions between the genes that regulate the body clock and those that may worsen symptoms of arthritis.

Method To Precisely Glue Particles Together On The Micro- And Nano-scale Created Posted: 16 Jun 2009 08:00 AM PDT Researchers have created a method to precisely bind nano- and micrometer-sized particles together into larger-scale structures with useful materials properties. Their work overcomes the problem of uncontrollable sticking, which had been a barrier to the successful creation of stable microscopic and macroscopic structures with a sophisticated architecture.

Neural Mechanism Supports Survival In An Uncertain World Posted: 16 Jun 2009 08:00 AM PDT A new study uncovers a pivotal role for the human frontal lobe in the promotion of behavioral flexibility during voluntary choice. The work presents a critical new neural mechanism that supports the decision to adapt or maintain behavior when change is not explicitly instructed by the external environment.

Is The Sky The Limit For Wind Power? High-flying Kites Could Light Up New York Posted: 16 Jun 2009 05:00 AM PDT In the future, will wind power tapped by high-flying kites light up New York? A new study identifies New York as a prime location for exploiting high-altitude winds, which globally contain enough energy to meet world demand 100 times over.

Popular Alzheimer's Theory May Be False Trail Posted: 16 Jun 2009 05:00 AM PDT Researchers have discovered that inflammation of microglia -- an abundant cell type that plays an important supporting role in the brain -- does not appear to be associated with dementia in Alzheimer's disease. The finding could influence how scientists proceed with Alzheimer's therapies.

Protein Regulates Movement Of Mitochondria In Brain Cells Posted: 16 Jun 2009 05:00 AM PDT Scientists have identified a protein in the brain that plays a key role in the function of mitochondria -- the part of the cell that supplies energy, supports cellular activity, and potentially wards off threats from disease. The discovery may shed new light on how the brain recovers from stroke.

New Strategy Proposed For Designing Antibody-based HIV Vaccine Posted: 16 Jun 2009 05:00 AM PDT Most vaccines that protect against viruses generate infection-fighting proteins called antibodies that either block infection or help eliminate the virus before it can cause disease. Attempts to create a vaccine that induces antibodies that prevent HIV infection or disease, however, have so far been unsuccessful. But several recent studies suggest promising new research directions for the development of an antibody-based HIV vaccine.

Do And Don't Of Building In Hurricane-prone Areas Posted: 16 Jun 2009 05:00 AM PDT Experts have evaluated the best building design and construction practices to reduce wind pressures on building surfaces and to resist high winds and hurricanes in residential or commercial construction.

Brain Energy Use Key To Understanding Consciousness Posted: 16 Jun 2009 05:00 AM PDT High levels of brain energy are required to maintain consciousness, a finding which suggests a new way to understand the properties of this still mysterious state of being, researchers report.

Meteorite Grains Divulge Earth's Cosmic Roots Posted: 16 Jun 2009 02:00 AM PDT The interstellar stuff that became incorporated into the planets and life on Earth has younger cosmic roots than theories predict, according to researchers.

Young Adults Not Drinking Enough Milk, Study Finds Posted: 16 Jun 2009 02:00 AM PDT Because peak bone mass is not achieved until the third decade of life, it is particularly important for young adults to consume adequate amounts of calcium, protein and vitamin D found in dairy products to support health and prevent osteoporosis later in life. Researchers now report that young people actually reduce their intake of calcium and dairy products as they enter their twenties.

Transparent Solar Cells Made For Windows Posted: 16 Jun 2009 02:00 AM PDT If solar cells were transparent, they could be fitted to windows and building facades. Physical modeling helps in the development of suitable materials for transparent electronics and thus in creating the basis for transparent solar cells.

How A Protein Helps Nerve Cells Recycle Synaptic Vesicles Posted: 16 Jun 2009 02:00 AM PDT Neurons transmit electrical signals efficiently only when they recycle neurotransmitter-carrying vesicles that have been expelled into the synapse. Researchers now report that the recycling of vesicles is controlled by oligophrenin-1, a protein whose lack of function has been known to cause a brain developmental disorder called X-linked mental retardation.

Algorithm Can Get Most Pollution Control For The Money Posted: 16 Jun 2009 02:00 AM PDT There may be thousands of things large and small that can be done to better control pollution on even the smallest waterways, and a new tool may help sort out how to choose the best ones.

Extended Or Shortened Sleep Duration Linked To Weight Gain Posted: 16 Jun 2009 02:00 AM PDT Body Mass Index varies as a function of habitual sleep duration, according to new research.

What Limits The Size Of Birds? Posted: 15 Jun 2009 11:00 PM PDT Biologists provide evidence that maximum body size in birds is constrained by the amount of time it takes to replace the flight feathers during molt.

Two Gene Locations Linked To Multiple Sclerosis Discovered Posted: 15 Jun 2009 11:00 PM PDT Australian and New Zealand researchers have accelerated research into multiple sclerosis by discovering two new locations of genes which will help to unravel the causes of MS and other autoimmune disease.

Computer System For Dementia Patients Posted: 15 Jun 2009 11:00 PM PDT A computer screen in the living room can help dementia sufferers to check the time and date and to remember appointments.

Relationship Between Bone Density And Erosion In Arthritis Posted: 15 Jun 2009 11:00 PM PDT Rheumatoid arthritis, the most common form of inflammatory arthritis, affects almost three percent of people over age 65. RA patients experience pain, functional limitations and two forms of disabling bone disease: focal erosions and osteoporosis.

The Dawn Of Quantum Applications Posted: 15 Jun 2009 11:00 PM PDT Technologies that exploit the unique weirdness of quantum mechanics could debut in the very near future, thanks to the groundbreaking work of a huge European research consortium.

FDA Warnings Led To Unintended Changes In Depression Diagnosis, New Report Finds Posted: 15 Jun 2009 11:00 PM PDT Government warnings about suicidality among children taking antidepressants appear to be associated with unintended and persistent changes in the diagnosis and treatment of depression in children and adults, according to a new report.

Researchers Test Nanoparticle To Treat Cardiovascular Disease In Mice Posted: 15 Jun 2009 08:00 PM PDT Scientists and engineers have developed a nanoparticle that can attack plaque -- a major cause of cardiovascular disease.

Mouse Experiments Shed Light On Age Effects In Arthritis Posted: 15 Jun 2009 08:00 PM PDT Older mice are more susceptible to proteoglycan-induced arthritis. Researchers writing in BioMed Central's open access journal Immunity & Ageing have shown, for the first time, that young mice are completely resistant, but become fully susceptible to the disease with age.

Dentures: 3D Digital Images Of Tooth Contours May Replace Plaster Models Posted: 15 Jun 2009 08:00 PM PDT Using current technology, dental technicians can only make dentures using a bite impression. The silicone template for this plaster model is made by the dentist, in a procedure which is unpleasant for the patient. In the future, a 3-D digitizer will provide the teeth contours -- without a plaster model.

Protein Linked To Alzheimer's Disease Doesn't Act Alone Posted: 15 Jun 2009 08:00 PM PDT Neuroscientists are steadily uncovering the role that amyloid precursor protein (APP) -- the protein implicated in development of Alzheimer's disease -- plays in normal brain function. They have discovered that APP interacts with another protein known as Reelin to promote development of abundant connections between brain neurons.

Two Signals -- From Within And Out Of Cell -- Specify Motor Neuron Differentiation Posted: 15 Jun 2009 08:00 PM PDT Two signals -- an external one from retinoic acid and an internal one from the transcription factor Neurogenin2 -- cooperate to activate chromatin (the basic material of chromosomes), and help determine that certain nerve progenitor cells become motor neurons, according to new research.

Older Adults Less Affected By Sleep Deprivation Than Younger Adults During Cognitive Performance Posted: 15 Jun 2009 08:00 PM PDT Older adults are able to retain better cognitive functioning during sleep deprivation than young adults, according to new research.

How Prion Protein Damages Brain Cells: Findings Could Advance Understanding Of Mad Cow Disease, Related Disorders Posted: 15 Jun 2009 05:00 PM PDT Scientists have gained a major insight into how the rogue protein responsible for mad cow disease and related neurological illnesses destroys healthy brain tissue.

Wine In A Box? Think 'Good' Not 'Gauche' Posted: 15 Jun 2009 05:00 PM PDT In a surprise discovery that may help boxed wine shake off its image as a gauche alternative to bottles, scientists in Canada are reporting that multilayer aseptic cartons (a.k.a. 'boxes') may help reduce levels of substances that contribute odors to wine and can lower its quality.

Natural Hormone Offers Hope For Treatment Of The Metabolic Syndrome Posted: 15 Jun 2009 05:00 PM PDT Angiotensin 1-7, a hormone in the body that has cardiovascular benefits, improves the metabolic syndrome in rats, according to a new study.

Scientists Create Custom 3-dimensional Structures With 'DNA Origami' Posted: 15 Jun 2009 05:00 PM PDT By combining the art of origami with nanotechnology, researchers have folded sheets of DNA into multilayered objects with dimensions thousands of times smaller than the thickness of a human hair. These tiny structures could be forerunners of custom-made biomedical nanodevices such as "smart" delivery vehicles that would sneak drugs into patients' cells, where they would dump their cargo on a specific molecular target.

Less Than Half Of Older Americans Get The Recommended 8 Hours Of Nightly Sleep Posted: 15 Jun 2009 05:00 PM PDT Older Americans with depressive symptoms and poor mental health tend to get seven hours of sleep per night or less, according to new research.

Marijuana Damages DNA And May Cause Cancer, New Test Reveals Posted: 15 Jun 2009 02:00 PM PDT Using a highly sensitive new test, scientists are reporting "convincing evidence" that marijuana smoke damages the genetic material DNA in ways that could increase the risk of cancer.

Human Embryonic Stem Cells Could Safely Treat Eye Diseases, Research Suggests Posted: 15 Jun 2009 02:00 PM PDT Advanced Cell Technology and its collaborators at OHSU report the long-term safety and efficacy of human embryonic stem cell (hESC)-derived retinal pigment epithelium produced under manufacturing conditions suitable for human clinical trials. The research shows long-term functional rescue using hESC-derived cells in both the RCS rat and Elov14 mouse, animal models of retinal degeneration and Stargardt disease, respectively.

Siberian Jays Use Complex Communication To Mob Predators Posted: 15 Jun 2009 02:00 PM PDT When mobbing predators, Siberian jays use over a dozen different calls to communicate the level of danger and predator category to other members of their own group. A new shows birds have evolved call systems that are as sophisticated as those of primates and meerkats.

Hormone Therapy May Confer More Aggressive Properties To Prostate Tumors Posted: 15 Jun 2009 02:00 PM PDT Hormone therapy is often given to patients with advanced prostate cancer. While it is true that the treatment prevents growth of the tumor, it also changes its properties. Some of these changes may result in the tumor becoming more aggressive and more liable to form metastases.

Fire Mitigation Work In Western US Misplaced, Says New Study Posted: 15 Jun 2009 02:00 PM PDT Only 11 percent of wildfire mitigation efforts undertaken as a result of a long-term federal fuels-reduction program to cut down catastrophic wildfire risk to communities have been undertaken near people's homes or offices in the past five years, says a new study.

First-time Moms' Exhaustion Caused By Sleep Fragmentation, Rather Than Timing Of Sleep Posted: 15 Jun 2009 02:00 PM PDT Contrary to popular belief, the timing of sleep in new mothers is preserved after giving birth, according to new research.

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
Inbox too full?
Google Inc., 20 West Kinzie, Chicago IL USA 60610