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Alzheimer's sufferers may function better with less visual clutter

Alzheimers sufferers may function better with less visual clutter
2012-10-12
TORONTO, ON – Psychologists at the University of Toronto and the Georgia Institute of Technology – commonly known as Georgia Tech – have shown that an individual's inability to recognize once-familiar faces and objects may have as much to do with difficulty perceiving their distinct features as it does with the capacity to recall from memory. A study published in the October issue of Hippocampus suggests that memory impairments for people diagnosed with early stage Alzheimer's disease may in part be due to problems with determining the differences between similar objects. ...

Exercise helps ease premature cardiovascular aging caused by type 2 diabetes

2012-10-12
WESTMINSTER, CO (October 10, 2012)—One of life's certainties is that everyone ages. However, it's also certain that not everyone ages at the same rate. According to recent research being presented this week, the cardiovascular system of people with type 2 diabetes shows signs of aging significantly earlier than those without the disease. However, exercise can help to slow down this premature aging, bringing the aging of type 2 diabetes patients' cardiovascular systems closer to that of people without the disease, says researcher Amy Huebschmann of the University of Colorado ...

Exercise could fortify immune system against future cancers

2012-10-12
WESTMINSTER, CO (October 10, 2012)—Researchers may soon be able to add yet another item to the list of exercise's well-documented health benefits: A preliminary study suggests that when cancer survivors exercise for several weeks after they finish chemotherapy, their immune systems remodel themselves to become more effective, potentially fending off future incidences of cancer. The finding may help explain why exercise can significantly reduce the chances of secondary cancers in survivors or reduce the chances of cancer altogether in people who have never had the disease. Laura ...

Parental bonding makes for happy, stable child

Parental bonding makes for happy, stable child
2012-10-12
Parents: Want to help ensure your children turn out to be happy and socially well adjusted? Bond with them when they are infants. That's the message from a study by the University of Iowa, which found that infants who have a close, intimate relationship with a parent are less likely to be troubled, aggressive or experience other emotional and behavioral problems when they reach school age. Surprisingly, the researchers found that a young child needs to feel particularly secure with only one parent to reap the benefits of stable emotions and behavior, and that being attached ...

Minutes of hard exercise can lead to all-day calorie burn

2012-10-12
WESTMINSTER, CO (October 10, 2012)—Time spent in the drudgery of strenuous exercise is a well-documented turn-off for many people who want to get in better shape. In a new study, researchers show that exercisers can burn as many as 200 extra calories in as little as 2.5 minutes of concentrated effort a day—as long as they intersperse longer periods of easy recovery in a practice known as sprint interval training. The finding could make exercise more manageable for would-be fitness buffs by cramming truly intense efforts into as little as 25 minutes. Kyle Sevits, Garrett ...

Focus on space debris: Envisat

2012-10-12
Space debris came into focus last week at the International Astronautical Congress in Naples, Italy. Envisat, ESA's largest Earth observation satellite, ended its mission last spring and was a subject of major interest in the Space Debris and Legal session. Envisat was planned and designed in 1987, a time when space debris was not considered to be a serious problem and before the existence of mitigation guidelines, established by the UN in 2007 and adopted the next year by ESA for all of its projects. Only later, during the post-launch operational phase, did Envisat's ...

Discovery reveals important clues to cancer metastasis

2012-10-12
BOSTON – In recent years investigators have discovered that breast tumors are influenced by more than just the cancer cells within them. A variety of noncancerous cells, which in many cases constitute the majority of the tumor mass, form what is known as the "tumor microenvironment." This sea of noncancerous cells and the products they deposit appear to play key roles in tumor pathogenesis. Among the key accomplices in the tumor microenvironment are mesenchymal stem cells (MSCs), a group of adult progenitor cells which have been shown to help breast cancers maneuver and ...

Nerve and muscle activity vary across menstrual cycle

2012-10-12
WESTMINSTER, CO (October 10, 2012)—Numerous studies have shown that female athletes are more likely to get knee injuries, especially anterior cruciate ligament (ACL) tears and chronic pain, than their male counterparts. While previous research has focused on biomechanical differences as the main source of these problems, a new study suggests another distinction that could play a role: changes across the menstrual cycle in nerves that control muscle activity. The finding may eventually lead to new ways to prevent knee problems in female athletes. Matthew Tenan, Yi-Ling ...

UT study: Natural playgrounds more beneficial to children, inspire more play

2012-10-12
KNOXVILLE—Children who play on playgrounds that incorporate natural elements like logs and flowers tend to be more active than those who play on traditional playgrounds with metal and brightly colored equipment, according to a recent study from the University of Tennessee, Knoxville. They also appear to use their imagination more, according to the report. The study, which examined changes in physical activity levels and patterns in young children exposed to both traditional and natural playgrounds, is among the first of its kind in the United States, according to Dawn ...

Terrorism risk greatest for subway/rail commuters, says MIT paper at INFORMS conference

Terrorism risk greatest for subway/rail commuters, says MIT paper at INFORMS conference
2012-10-12
Despite homeland security improvements since September 11, 2001, subway and rail commuters face higher risks of falling victim to terrorists and mass violence than frequent flyers or those engaged in virtually any other activity. And while successful criminal and terrorist acts against aviation have fallen sharply, those against subways and commuter trains have surged. These are among the findings of a new study by Arnold Barnett, George Eastman Professor of Management Science at MIT's Sloan School of Management, who will deliver a presentation titled "Has Terror Gone to ...

Antibiotic resistance a growing concern with urinary tract infection

2012-10-12
CORVALLIS, Ore. – As a result of concerns about antibiotic resistance, doctors in the United States are increasingly prescribing newer, more costly and more powerful antibiotics to treat urinary tract infections, one of the most common illnesses in women. New research at Oregon State University suggests that the more powerful medications are used more frequently than necessary, and they recommend that doctors and patients discuss the issues involved with antibiotic therapy – and only use the stronger drugs if really neeeded. Urinary tract infections are some of the ...

Earth sunblock only needed if planet warms easily

Earth sunblock only needed if planet warms easily
2012-10-12
RICHLAND, Wash. -- An increasing number of scientists are studying ways to temporarily reduce the amount of sunlight reaching the earth to potentially stave off some of the worst effects of climate change. Because these sunlight reduction methods would only temporarily reduce temperatures, do nothing for the health of the oceans and affect different regions unevenly, researchers do not see it as a permanent fix. Most theoretical studies have examined this strategy by itself, in the absence of looking at simultaneous attempts to reduce emissions. Now, a new computer analysis ...

Engineered flies spill secret of seizures

2012-10-12
VIDEO: Fruit flies with a genetic tendency toward fever-induced seizures (top) are the first to stop moving freely and are swept aside by a gentle air current as the temperature rises.... Click here for more information. PROVIDENCE, R.I. [Brown University] — In a newly reported set of experiments that show the value of a particularly precise but difficult genetic engineering technique, researchers at Brown University and the University of California–Irvine have created a Drosophila ...

Researchers work across fields to uncover information about hadrosaur teeth

2012-10-12
GAINESVILLE, Fla. — An unusual collaboration between researchers in two disparate fields resulted in a new discovery about the teeth of 65-million-year-old dinosaurs. With the help of University of Florida mechanical engineering professor W. Gregory Sawyer and UF postdoctoral researcher Brandon Krick, Florida State University paleobiologist Gregory Erickson determined the teeth of hadrosaurs — an herbivore from the late Cretaceous period — had six tissues in their teeth instead of two. The results were published in the journal Science Oct. 5. "When something has been ...

Notre Dame researcher helps make Sudoku puzzles less puzzling

2012-10-12
For anyone who has ever struggled while attempting to solve a Sudoku puzzle, University of Notre Dame researcher Zoltan Toroczkai and Notre Dame postdoctoral researcher Maria Ercsey-Ravaz are riding to the rescue. They can not only explain why some Sudoku puzzles are harder than others, they have also developed a mathematical algorithm that solves Sudoku puzzles very quickly, without any guessing or backtracking. Toroczkai and Ravaz of Romania's Babes-Boylai University began studying Sudoku as part of their research into the theory of optimization and computational complexity. ...

Mug handles could help hot plasma give lower-cost, controllable fusion energy

Mug handles could help hot plasma give lower-cost, controllable fusion energy
2012-10-12
Researchers around the world are working on an efficient, reliable way to contain the plasma used in fusion reactors, potentially bringing down the cost of this promising but technically elusive energy source. A new finding from the University of Washington could help contain and stabilize the plasma using as little as 1 percent of the energy required by current methods. "All of a sudden the current energy goes from being almost too much to almost negligible," said lead author Thomas Jarboe, a UW professor of aeronautics and astronautics. He presents the findings this ...

More than just 'zoning out' -- Exploring the cognitive processes behind mind wandering

2012-10-12
It happens innocently enough: One minute you're sitting at your desk, working on a report, and the next minute you're thinking about how you probably need to do laundry and that you want to try the new restaurant down the street. Mind wandering is a frequent and common occurrence. And while mind wandering in certain situations – in class, for example – can be counterproductive, some research suggests that mind wandering isn't necessarily a bad thing. New research published in the journals of the Association for Psychological Science explores mind wandering in various ...

Duke Medicine news -- Anti-cancer drug fights immune reaction in some infants with Pompe disease

2012-10-12
DURHAM, N.C. – Adding a third anti-cancer agent to a current drug cocktail appears to have contributed to dramatic improvement in three infants with the most severe form of Pompe disease -- a rare, often-fatal genetic disorder characterized by low or no production of an enzyme crucial to survival. Duke researchers previously pioneered the development of the first effective treatment for Pompe disease via enzyme replacement therapy (ERT). ERT relies on a manufactured enzyme/protein to act as a substitute for the enzyme known to be lacking in patients with a particular disease. ...

New studies reveal connections between animals' microbial communities and behavior

2012-10-12
Athens, Ga. – New research is revealing surprising connections between animal microbiomes—the communities of microbes that live inside animals' bodies—and animal behavior, according to a paper by University of Georgia ecologist Vanessa O. Ezenwa and her colleagues. The article, just published in the Perspectives section of the journal Science, reviews recent developments in this emerging research area and offers questions for future investigation. The paper grew out of a National Science Foundation-sponsored workshop on new ways to approach the study of animal behavior. ...

Enzyme triggers cell death in heart attack

2012-10-12
University of Iowa researchers have previously shown that an enzyme called CaM kinase II plays a pivotal role in the death of heart cells following a heart attack or other conditions that damage or stress heart muscle. Loss of beating heart cells is generally permanent and leads to heart failure, a serious, debilitating condition that affects 5.8 million people in the United States. Now the UI team, led by Mark Anderson, M.D., Ph.D., professor and head of internal medicine at the UI Carver College of Medicine, has honed in on how CaM kinase II triggers heart cell death ...

New treatments for epilepsy, behavioral disorders could result from Wayne State studies

2012-10-12
Three studies conducted as part of Wayne State University's Systems Biology of Epilepsy Project (SBEP) could result in new types of treatment for the disease and, as a bonus, for behavioral disorders as well. The SBEP started out with funds from the President's Research Enhancement Fund and spanned neurology, neuroscience, genetics and computational biology. It since has been supported by multiple National Institutes of Health-funded grants aimed at identifying the underlying causes of epilepsy, and it is uniquely integrated within the Comprehensive Epilepsy Program at ...

Safety results of intra-arterial stem cell clinical trial for stroke presented

2012-10-12
HOUSTON – (Oct. 11, 2012) – Early results of a Phase II intra-arterial stem cell trial for ischemic stroke showed no adverse events associated with the first 10 patients, allowing investigators to expand the study to a targeted total of 100 patients. The results were presented today by Sean Savitz, M.D., professor of neurology and director of the Stroke Program at The University of Texas Health Science Center at Houston (UTHealth), at the 8th World Stroke Congress in Brasilia, Brazil. The trial is the only randomized, double-blind, placebo-controlled intra-arterial clinical ...

Satellite sees 16th Atlantic tropical depression born near Bahamas

Satellite sees 16th Atlantic tropical depression born near Bahamas
2012-10-12
The 16th tropical depression of the Atlantic Ocean season has formed northeast of the Bahamas and NOAA's GOES-14 satellite captured a visible image of the storm as it tracks to the southwest. NOAA's GOES-14 satellite captured a visible image of newborn Tropical Depression 16 (TD16) near the Bahamas on Oct. 11 at 7:45 a.m. EDT. TD16 appeared as a rounded area of clouds just northeast of the Bahamas and its western fringes were just off the Florida east coast. GOES-14 also showed another low pressure area with the potential for development a few hundred miles from the Windward ...

NASA sees Typhoon Prapiroon doing a 'Sit and Spin' in the Philippine Sea

NASA sees Typhoon Prapiroon doing a Sit and Spin in the Philippine Sea
2012-10-12
As Typhoon Prapiroon slowed down and became quasi-stationary in the Philippine Sea NASA's Terra satellite passed overhead and captured an image of the storm. NASA's Terra satellite passed over Typhoon Prapiroon on Oct. 11 at 0210 UTC (1010 p.m. EDT, Oct. 10) and the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument captured a visible image of the storm. The visible imagery clearly showed a small ragged eye, and microwave satellite imagery confirmed the eye. Satellite imagery also confirmed a well-defined low-level center of circulation. By 11 a.m. EDT ...

Nurture trumps nature in study of oral bacteria in human twins, says CU study

2012-10-12
A new long-term study of human twins by University of Colorado Boulder researchers indicates the makeup of the population of bacteria bathing in their saliva is driven more by environmental factors than heritability. The study compares saliva samples from identical and fraternal twins to see how much "bacterial communities" in saliva vary from mouth to mouth at different points in time, said study leader and CU-Boulder Professor Kenneth Krauter. The twin studies show that the environment, rather than a person's genetic background, is more important in determining the ...
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