Study: Buying luxury -- hedonistic or just French?
2013-02-07
A young woman in Tokyo pays 243,000 Yen for a Louis Vuitton suitcase emblazoned with the company's iconic monogram. A continent away, another woman purchases the same suitcase at the company's store on New York's 5th Avenue for the equivalent price in dollars, $3000. Why? What motivates their purchases? And, do those motivations hinge on their location?
That is precisely what Professor Jaehee Jung and her collaborators at universities in 9 other countries sought to answer. Their findings published recently in the journal, Psychology & Marketing, compared consumers' ...
Smartphones, tablets help scientists improve storm forecasts
2013-02-07
The next advance in weather forecasting may not come from a new satellite or supercomputer, but from a device in your pocket. University of Washington atmospheric scientists are using pressure sensors included in the newest smartphones to develop better weather forecasting techniques.
"With this approach we could potentially have tens or hundreds of thousands of additional surface pressure observations, which could significantly improve short-term weather forecasts," said Cliff Mass, a UW professor of atmospheric sciences.
Owners of certain new Android smartphones and ...
Happiness increases with age, across generations
2013-02-07
Psychological well-being has been linked to many important life outcomes, including career success, relationship satisfaction, and even health. But it's not clear how feelings of well-being change as we age, as different studies have provided evidence for various trends over time.
A new report published in Psychological Science, a journal of the Association for Psychological Science, reveals that self-reported feelings of well-being tend to increase with age, but that a person's overall level of well-being depends on when he or she was born.
Psychological scientist ...
Tiny capsule effectively kills cancer cells
2013-02-07
A tiny capsule invented at a UCLA lab could go a long way toward improving cancer treatment.
Devising a method for more precise and less invasive treatment of cancer tumors, a team led by researchers from the UCLA Henry Samueli School of Engineering and Applied Science has developed a degradable nanoscale shell to carry proteins to cancer cells and stunt the growth of tumors without damaging healthy cells.
In a new study, published online Feb. 1 in the peer-reviewed journal Nano Today, a group led by Yi Tang, a professor of chemical and biomolecular engineering and ...
Personalized health care will revolutionize 21st century medicine, says NJIT professor
2013-02-07
A closer look at personalized or point-of-care healthcare was the focus of a recent international conference in India organized and chaired by NJIT Distinguished Professor Atam Dhawan. The IEEE Engineering in Medicine and Biology Society (EMBS) International Special Topic Conference in point-of-care healthcare technologies, broadcast around the world, focused on topics ranging from 21st century medicine with new smart cross-and trans-disciplinary technologies to how wireless communications will change how physicians care for patients.
"The last century witnessed a ...
Stanford researcher sheds new light on the mysteries of spider silk
2013-02-07
As fibers go, there's never been anything quite like spider silk. Stretch it. Bend it. Soak it. Dry it out. Spider silk holds up. It is five times stronger than steel and can expand nearly a third greater than its original length and snap right back like new. Ounce-for-ounce spider silk is even stronger than Kevlar, the man-made fiber used in bulletproof vests.
It would be understandable to think that science knows all there is to know about the remarkable physics of spider silk, but the truth is far from that. Now, using a long-known-but-underutilized spectroscopy technique, ...
Hydrothermal liquefaction -- the most promising path to a sustainable bio-oil production
2013-02-07
To emphasize, the HTL process accepts all biomasses from modern society – sewage sludge, manure, wood, compost and plant material along with waste from households, meat factories, dairy production and similar industries.
It is by far the most feedstock flexible of any liquid fuel producing process, including pyrolysis, bio-ethanol, gasification with Fischer-Tropsch or catalytic upgrading of different vegetable or agro-industrial residual oils, and does not carry higher costs than these.
Hydrothermal liquefaction is basically pressure cooking, but instead of cooking the ...
India joined with Asia 10 million years later than previously thought
2013-02-07
CAMBRIDGE, Mass. -- The peaks of the Himalayas are a modern remnant of massive tectonic forces that fused India with Asia tens of millions of years ago. Previous estimates have suggested this collision occurred about 50 million years ago, as India, moving northward at a rapid pace, crushed up against Eurasia. The crumple zone between the two plates gave rise to the Himalayas, which today bear geologic traces of both India and Asia. Geologists have sought to characterize the rocks of the Himalayas in order to retrace one of the planet's most dramatic tectonic collisions.
Now ...
Preserving biodiversity can be compatible with intensive agriculture
2013-02-07
UNIVERSITY PARK, Pa. -- Preserving genetically diverse local crops in areas where small-scale farms are rapidly modernizing is possible, according to a Penn State geographer, who is part of an international research project investigating the biodiversity of maize, or corn, in hotspots of Bolivia, Peru and Mexico.
Hotspots are areas where cultivation of peaches and other non-traditional crops has exploded over the past decade, noted Karl Zimmerer, professor and head of the Department of Geography, and where small-scale farms are often female-run and have been previously ...
Compound stimulates tumor-fighting protein in cancer therapy
2013-02-07
HERSHEY, Pa. --A compound that stimulates the production of a tumor-fighting protein may improve the usefulness of the protein in cancer therapy, according to a team of researchers.
TRAIL is a natural anti-tumor protein that suppresses tumor development during immune surveillance -- the immune system's process of patrolling the body for cancer cells. This process is lost during cancer progression, which leads to uncontrolled growth and spread of tumors.
The ability of TRAIL to initiate cell death selectively in cancer cells has led to ongoing clinical trials with artificially ...
People seek high-calorie foods in tough times says University of Miami study
2013-02-07
Bad news about the economy could cause you to pack on the pounds. This according to a new study from the University of Miami School of Business Administration published in the February edition of Psychological Science, a journal of the Association of Psychological Science. The study shows that when there is a perception of tough times, people tend to seek higher-calorie foods that will keep them satisfied longer. When subconsciously primed with such messages, a "live for today" impulse is triggered causing people to consume nearly 40 percent more food than when compared ...
Understanding microbes blowing in the wind
2013-02-07
With help from a wind tunnel and the latest DNA technology, U.S. Department of Agriculture (USDA) scientists are shedding light on the travel patterns of microbes in soils carried off by strong winds. The work has implications for soil health and could lead to management practices that minimize the damage to soils caused by wind erosion.
Wind erosion is an emerging issue in soil conservation efforts. Agricultural Research Service (ARS) scientists have been studying wind-eroded soils since the 1930s, but few studies have focused on the effects of wind on the bacteria, ...
Fish oil may protect dialysis patients from sudden cardiac death
2013-02-07
INDIANAPOLIS -- Medical literature long has touted the benefits of omega-3 fatty acids for the heart. But until now, researchers have not studied the potential benefit for people on hemodialysis, who are among the highest-risk patients for sudden cardiac death.
A study published Feb. 6 online in the journal Kidney International, which included 100 patients who died of sudden cardiac death during their first year of hemodialysis and 300 patients who survived, is the first to examine this question.
Allon N. Friedman, M.D., associate professor of medicine in the Division ...
Nitrogen from pollution, natural sources causes growth of toxic algae, study finds
2013-02-07
SAN FRANCISCO, Feb. 6, 2013 -- Nitrogen in ocean waters fuels the growth of two tiny but toxic phytoplankton species that are harmful to marine life and human health, warns a new study published in the Journal of Phycology.
Researchers from San Francisco State University found that nitrogen entering the ocean -- whether through natural processes or pollution -- boosts the growth and toxicity of a group of phytoplankton that can cause the human illness Amnesic Shellfish Poisoning.
Commonly found in marine waters off the North American West Coast, these diatoms (phytoplankton ...
LSU professor discovers how new corals species form in the ocean
2013-02-07
Since the observations made by English naturalist Charles Darwin on the Galapagos Islands, researchers have been interested in how physical barriers, such as isolation on a particular island, can lead to the formation of new species through the process of natural selection. Natural selection is a process whereby heritable traits that enhance survival become more common in successive generations, while unfavorable heritable traits become less common. Over time, animals and plants that have morphologies or other attributes that enhance their suitability to a particular environment ...
Turning repulsive feelings into desires
2013-02-07
ANN ARBOR—Hunger, thirst, stress and drugs can create a change in the brain that transforms a repulsive feeling into a strong positive "wanting," a new University of Michigan study indicates.
The research used salt appetite to show how powerful natural mechanisms of brain desires can instantly transform a cue that always predicted a repulsive Dead Sea Salt solution into an eagerly wanted beacon or motivational magnet.
Mike Robinson, a research fellow in the U-M Department of Psychology and the study's lead author, said the findings help explain how related brain activations ...
Lower drinking ages lead to more binge drinking
2013-02-07
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In the 1970s and early 1980s, some states lower their minimum legal drinking age below the age of 21. Those lower drinking ages have been linked to bad things, from...
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People who grew up in states where it was legal to drink alcohol before age 21 are more likely to be binge drinkers later in life, according to a study by researchers at Washington University School of Medicine in St. Louis.
The findings are available online in Alcoholism: ...
Improved X-ray microscopic imaging
2013-02-07
For more than 100 years radiography meant: don't move! In order to visualize nanostructures such as biological cells, the porous structure of cement or storage fields of magnetic disks, the experimentators had to avoid any kind of vibration of X-ray microscope and sample. In addition, only a small percentage fraction of the incoming X-ray radiation could be used. Using special filters, they had to select exactly the fraction with the right properties – for example, the right wavelength.
Contributions of different wavelengths separated
Pierre Thibault of the Technische ...
Breast milk reduces risk of sepsis and intensive care costs in very-low-birth-weight infants
2013-02-07
CHICAGO -- Feeding human breast milk to very-low-birth-weight infants greatly reduces risk for sepsis and significantly lowers associated neonatal intensive care unit (NICU) costs, according to a study by Rush University Medical Center researchers.
The study, published Jan. 31 in the advance online version of the Journal of Perinatology, showed that every 10 milliliters of human milk per kilogram that a very low birth weight infant received during the first 28 days of life decreased the odds of sepsis by almost 20 percent.
A daily dose of 25 to 49.99 milliliters of ...
Sensing the light, but not to see
2013-02-07
WOODS HOLE, MASS. -- Among the animals that are appealing "cover models" for scientific journals, lancelets don't spring readily to mind. Slender, limbless, primitive blobs that look pretty much the same end to end, lancelets "are extremely boring. I wouldn't recommend them for a home aquarium," says Enrico Nasi, adjunct senior scientist at the Marine Biological Laboratory (MBL). Yet Nasi and his collaborators managed to land a lancelet on the cover of the Journal of Neuroscience last December. These simple chordates, they discovered, offer insight into our own biological ...
Scientists identify genetic mechanism that contributed to Irish Famine
2013-02-07
RIVERSIDE, Calif. — When a pathogen attacks a plant, infection usually follows after the plant's immune system is compromised. A team of researchers at the University of California, Riverside focused on Phytophthora, the pathogen that triggered the Irish Famine of the 19th century by infecting potato plants, and deciphered how it succeeded in crippling the plant's immune system.
The genus Phytophthora contains many notorious pathogens of crops. Phytophthora pathogens cause worldwide losses of more than $6 billion each year on potato (Phytophthora infestans) and about ...
The deep roots of catastrophe
2013-02-07
SALT LAKE CITY, Feb. 7, 2013 – A University of Utah seismologist analyzed seismic waves that bombarded Earth's core, and believes he got a look at the earliest roots of Earth's most cataclysmic kind of volcanic eruption. But don't worry. He says it won't happen for perhaps 200 million years.
"What we may be detecting is the start of one of these large eruptive events that – if it ever happens – could cause very massive destruction on Earth," says seismologist Michael Thorne, the study's principal author and an assistant professor of geology and geophysics at the University ...
2 antibodies are better than 1
2013-02-07
Cancer drugs of the new, molecular generation destroy malignant breast tumors in a targeted manner: They block characteristic molecules on tumor cells - receptors for the hormones estrogen or progesterone, or a co-receptor, called HER2, that binds to many growth factors. But about one in every six breast tumors has none of these receptors. Such cancers, called triple-negative, are particularly aggressive and notoriously difficult to treat.
Some of these therapy-resistant cancers have a potential molecular target for cancer drugs, a growth-factor receptor called EGFR, ...
A genetic device performs DNA diagnosis
2013-02-07
Scientists hope that one day in the distant future, miniature, medically-savvy computers will roam our bodies, detecting early-stage diseases and treating them on the spot by releasing a suitable drug, without any outside help. To make this vision a reality, computers must be sufficiently small to fit into body cells. Moreover, they must be able to "talk" to various cellular systems. These challenges can be best addressed by creating computers based on biological molecules such as DNA or proteins. The idea is far from outrageous; after all, biological organisms are capable ...
Going along means getting along -- and that's not always good, Baylor study finds
2013-02-07
Caving in to social pressure — such as saying that you love a movie because friends do — makes for good vibes about being part of a group and can produce more of the same conduct, according to a Baylor University sociological study. The finding has implications for people ranging from philanthropists to gangs, researchers said.
"The punch line is very simple: Conformity leads to positive feelings, attachments, solidarity — and these are what motivate people to continue their behavior," said Kyle Irwin, Ph.D., an assistant professor of sociology at Baylor and lead author. ...
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