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Evolutionary computation offers flexibility, insight

Evolutionary computation offers flexibility, insight
2011-08-04
A Franklin University professor recently developed an evolutionary computation approach that offers researchers the flexibility to search for models that can best explain experimental data derived from many types of applications, including economics. To test the algorithm underlying that approach, Esmail Bonakdarian, Ph.D., an assistant professor of computing sciences and mathematics at Franklin, leveraged the Glenn IBM 1350 Opteron cluster, the flagship system of the Ohio Supercomputer Center (OSC). "Every day researchers are confronted by large sets of survey or experimental ...

Regrowing blood vessels with a potent molecule

2011-08-04
PITTSBURGH—Ever since the Nobel Prize for nerve growth factor was awarded more than 30 years ago, researchers have been searching for ways to use growth factor clinically. University of Pittsburgh Professor Yadong Wang has developed a minimally invasive method of delivering growth factor to regrow blood vessels. His research, which could be used to treat heart disease, the most common cause of death in the Western world, is published this week in the Aug. 1 issue of the journal Proceedings of the National Academy of Sciences. Wang is a professor in the Department of ...

Digital photos can animate a face so it ages and moves before your eyes

Digital photos can animate a face so it ages and moves before your eyes
2011-08-04
Personal photos occupy an ever-expanding amount of hard drive space. Baby, family and vacation photos can now number in the thousands. While some poke fun at the digital glut, others see a unique opportunity. Researchers at the University of Washington have created a way to take hundreds or thousands of digital portraits and in seconds create an animation of the person's face. The tool can make a face appear to age over time, or choose images from the same period to make the person's expression gradually change from a smile to a frown. The researchers were inspired, ...

COPD patients with sense of humor feel better, but laughter may be bad for lungs

2011-08-04
COPD PATIENTS WITH SENSE OF HUMOR FEEL BETTER, BUT LAUGHTER MAY BE BAD FOR LUNGS COLUMBUS, Ohio – Having a sense of humor is associated with improved emotional functioning and an enhanced quality of life among patients with a chronic lung illness, but the actual act of laughing out loud can reduce lung function, at least in the short term, research suggests. The study evaluated humor and laughter in patients with chronic obstructive pulmonary disease, or COPD. Participants who exhibited a greater sense of humor were more likely to report fewer symptoms of depression ...

Can eggs be a healthy breakfast choice?

Can eggs be a healthy breakfast choice?
2011-08-04
Tel Aviv — Eggs, one of the most commonly consumed breakfast foods in the United States, have long been a subject of controversy. Are they healthy or are they a high-cholesterol trap? The answer depends on what the hen eats, says a Tel Aviv University researcher. Dr. Niva Shapira of Tel Aviv University's School of Health Professions says that all eggs are not created equal. Her research indicates that when hens are fed with a diet low in omega-6 fatty acids from a young age — feed high in wheat, barley, and milo and lower in soy, maize and sunflower, safflower, and maize ...

Scientists probe the energy transfer process in photosynthetic proteins

2011-08-04
College Park, Md. (August 2, 2011) -- Researchers have developed a new method to probe the fundamental workings of photosynthesis. The new experimental technique could help scientists better understand the nitty-gritty details of nature's amazingly efficient sunlight-to-fuel conversion system. Plants and other photosynthetic organisms grow by harvesting the sun's energy and storing it in chemical bonds. Antenna proteins, which are made up of multiple light-absorbing pigments, capture sunlight over a large surface area and then transfer the energy through a series of molecules ...

Study: Inexpensive method detects ALK rearrangement in lung cancer patients

2011-08-04
A relatively simple and inexpensive method may be used to determine whether a lung cancer patient is a candidate for crizotinib therapy, according to research published in the August issue of the Journal of Thoracic Oncology, the official monthly journal of the International Association for the Study of Lung Cancer (IASLC). Lung cancer patients with ALK rearrangement have been found to respond well to crizotinib, an ALK inhibitor currently in clinical trials. Fluorescence in situ hybridization (FISH) has been considered the gold standard method for detecting ALK rearrangement. "However, ...

UNH researchers help find natural products potential of frankia

2011-08-04
DURHAM, N.H. – Soil-dwelling bacteria of the genus Frankia have the potential to produce a multitude of natural products, including antibiotics, herbicides, pigments, anticancer agents, and other useful products, according to an article in the June 2011 issue of the journal "Applied and Environmental Microbiology." University of New Hampshire professor of microbiology and genetics Louis Tisa, a Frankia expert, contributed the genomic analysis to this study. "We were able to use cutting-edge techniques to identify unexpected compounds in this organism, Frankia," Tisa says. ...

Are pet owners healthier and happier? Maybe not…

2011-08-04
For many people, Fido and Fluffy are more than just pets, they're true and equal members of the family. And it's not hard to see why. Our pets greet us at the door after a long day of work, settle in our laps while we're watching TV, or 'sing' along when we hum a tune. They provide companionship and even a sense of comfort. We like to believe that our pets are good for us, that they enrich our lives and make us happier, and messages in media and advertising reinforce these beliefs. But is there really a universal 'pet effect' on human mental and physical health? According ...

African rodent uses 'poison arrow' toxin to deter predators

African rodent uses poison arrow toxin to deter predators
2011-08-04
Woe to the clueless predator trying to make a meal of the African crested rat, a rodent that applies poisonous plant toxin to sponge-like hairs on its flanks, a discovery recently made by Jonathan Kingdon and colleagues from the National Museums of Kenya, the Wildlife Conservation Society, and University of Oxford. In the only known instance of a mammal acquiring a lethal toxin from a plant for defense, the researchers have discovered where the African crested rat (or maned rat) gets its poison: the Acokanthera tree, the same source used by East African hunters for ...

What's in a kids meal? Not happy news

2011-08-04
High-calorie, high-sodium choices were on the menu when parents purchased lunch for their children at a San Diego fast-food restaurant. Why? Because both children and adults liked the food and the convenience. However, the study of data compiled by researchers in the Department of Pediatrics at the University of California, San Diego, appearing this week in the new journal, Childhood Obesity, showed that convenience resulted in lunchtime meals that accounted for between 36 and 51 percent of a child's daily caloric needs. In addition, 35 to 39 percent of calories came ...

First large study to find HIV epidemic among gays in the Middle East

2011-08-04
NEW YORK (Aug. 2, 2011) -- HIV epidemics are emerging in several countries in the Middle East and North Africa among men who have sex with men, a term that encompasses gay, non-gay identified homosexual men, and transgendered and bisexual men. Though HIV infection levels were historically very low in the Middle East and North Africa, substantial levels of HIV transmission have been found, beginning in 2003, among men who have sex with men, a hidden and stigmatized population in this part of the world. These findings are published today in PLoS Medicine and represent the ...

Georgia Tech proposes Internet consumer nutrition label

2011-08-04
When it comes to broadband speeds, U.S. Internet service providers (ISPs) largely deliver on their promises, says a report issued today by the Federal Communications Commission, but "throughput" is only one of several metrics listed in the report that affect network performance. ISPs should provide a broadband "nutrition label"—easy-to-understand information about service-limiting factors—and users need better ways of measuring the performance their ISPs are delivering, concludes a study from the Georgia Tech College of Computing. Out of some 2 billion Internet users ...

BGU researchers develop webcam tool to improve office worker posture

2011-08-04
BEER-SHEVA, ISRAEL, August 2, 2011– A multidisciplinary team at Ben-Gurion University of the Negev has developed a new training method using a desktop webcam to improve ergonomic posture and reduce the risk of musculoskeletal disorders (MSD) among office workers using computers. According to an article in Applied Ergonomics in the forthcoming issue, a group of 60 workers received both office training and an automatic frequent-feedback system that displayed a webcam photo of a worker's current sitting posture alongside the correct posture photo taken during office training. ...

Plant biologists dissect genetic mechanism enabling plants to overcome environmental challenge

2011-08-04
Cold Spring Harbor, NY -- When an animal gets too hot or too cold, or feels pangs of hunger or thirst, it tends to relocate – to where it's cooler or hotter, or to the nearest place where food or water can be found. But what about vegetative life? What can a plant do under similar circumstances? Plants can't change the climate and they can't uproot themselves to move to a more favorable spot. Yet they do respond successfully to changes in environmental conditions in diverse ways, many of which involve modifications of the way they grow and develop. Plant biologists ...

August 2011 GSA Today science: Understanding Earth's eroding surface with 10Be

2011-08-04
Boulder, Colorado, USA - The August GSA TODAY science article is now online at http://www.geosociety.org/gsatoday/archive/21/8/. The modification of Earth's surface by erosion is one of the most important geological processes in terms of its impact on society, as well as its influence on the geological record, but geologists have been lacking a well-determined compilation of pre-human rates of erosion. In a groundbreaking compilation of 1528 calculations of surface erosion rates from 80 study areas from all over the world, authors Eric Portenga and Paul Bierman of the ...

Stray-bullet shootings most often harm women and individuals at low-risk for violence

2011-08-04
(SACRAMENTO, Calif.) — In the first nationwide study of stray-bullet shootings, Garen Wintemute, professor of emergency medicine and director of the Violence Prevention Research Program at UC Davis School of Medicine and Medical Center, quantifies mortality and injury among victims of these unexpected events. His research is published as a letter in the August 3 issue of the Journal of the American Medical Association. "Stray-bullet shootings create fear and insecurity in many communities," said Wintemute. "People stay indoors, don't let their children play outside, and ...

Atmospheric simulations will help NASA interpret data from the Juno Mission to Jupiter

Atmospheric simulations will help NASA interpret data from the Juno Mission to Jupiter
2011-08-04
In August of 2016, when NASA's Juno Mission begins sending back information about the atmosphere of the planet Jupiter, research done by Georgia Institute of Technology engineers using a 2,400-pound pressure vessel will help scientists understand what the data means. The Juno probe is scheduled to be launched August 5 from Cape Canaveral Air Force Station in Florida. Because Jupiter has been largely unchanged since its formation at the birth of our solar system, scientists hope Juno will resolve unanswered questions not only about the massive planet, but also about how ...

Scientists identify what makes us feel 'bad' when we're sick, how to treat it

2011-08-04
PORTLAND, Ore. — A signaling system in the brain previously shown to regulate sleep is also responsible for inducing lethargy during illness, according to research conducted at Oregon Health & Science University Doernbecher Children's Hospital. This research is particularly meaningful because it implies that a new class of drugs developed to treat sleep disorders can reverse the inactivity and exhaustion brought on by acute illness. Although the sleep drugs were initially designed to treat narcolepsy, they have the potential to restore energy and motivation in patients ...

IT solution to improve hospital workflow and schedules

2011-08-04
A new customised IT business management system developed by Queensland University of Technology (QUT) researchers and capable of improving the scheduling of resources and workflow in surgical theatres has been successfully demonstrated in a German hospital. Dr Chun Ouyang, from QUT's Business Process Management (BPM) group, said the system was built based on an automated workflow system known as YAWL, and allowed hospitals to more efficiently manage the co-ordination of expensive surgery-related resources. The project is being undertaken in partnership with German ...

Science showcase presents psychology's 'hands-on' benefits

2011-08-04
WASHINGTON – The American Psychological Association plans to feature three public demonstrations of psychological science applications, including one that enables "seeing" with one's ears rather than eyes, at the organization's 119th Annual Convention here this week. The Science Showcase will be open to the public Aug. 5 and 6, near the entrance to the convention exhibits and registration area at the Walter E. Washington Convention Center. "The science of psychology affects everyone's daily life in ways that most people don't realize," said Steven J. Breckler, ...

National survey reveals widespread mistaken beliefs about memory

National survey reveals widespread mistaken beliefs about memory
2011-08-04
CHAMPAIGN, Ill. — A new survey reveals that many people in the U.S. – in some cases a substantial majority – think that memory is more powerful, objective and reliable than it actually is. Their ideas are at odds with decades of scientific research. The results of the survey and a comparison to expert opinion appear in a paper in the journal PLoS ONE. (Before reading further, test your own ideas about memory.) "This is the first large-scale, nationally representative survey of the U.S. population to measure intuitive beliefs about how memory works," said University ...

Lifestyles of the old and healthy defy expectations

2011-08-04
VIDEO: People who live to 95 or older are no more virtuous than the rest of us in terms of their diet, exercise routine or smoking and drinking habits, according to... Click here for more information. August 3, 2011 — (Bronx, NY) — People who live to 95 or older are no more virtuous than the rest of us in terms of their diet, exercise routine or smoking and drinking habits, according to researchers at Albert Einstein College of Medicine of Yeshiva University. Their findings, ...

Mayo Clinic finds new bacterium causing tick-borne illness ehrlichiosis in Wis., Minn.

2011-08-04
ROCHESTER, Minn. -- A new tick-borne bacterium infecting humans with ehrlichiosis has been discovered in Wisconsin and Minnesota. It was identified as a new strain of bacteria through DNA testing conducted at Mayo Clinic. The findings appear in the Aug. 4 edition of the New England Journal of Medicine. Doctors at Mayo Clinic, the Centers for Disease Control and Prevention (CDC), the University of Minnesota, the University of Wisconsin, and state and local health departments say the new species from the Ehrlichia genus can cause a feverish illness in humans. The new bacterium, ...

Standard aplastic anemia therapy improves patient outcomes better than newer version

2011-08-04
A comparison clinical study of two aplastic anemia treatments found that ATGAM, currently the only licensed aplastic anemia drug in the United States, improved blood cell counts and survival significantly more than did Thymoglobulin, a similar but reportedly more potent treatment. The research was funded by the National Heart, Lung, and Blood Institute (NHLBI), a part of the National Institutes of Health; the study participants were treated and then followed at the NIH Clinical Center in Bethesda, Maryland. The study will appear in the August 4 New England Journal of ...
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