For neurons to work as a team, it helps to have a beat
2010-09-21
Berkeley — When it comes to conducting complex tasks, it turns out that the brain needs rhythm, according to researchers at the University of California, Berkeley.
Specifically, cortical rhythms, or oscillations, can effectively rally groups of neurons in widely dispersed regions of the brain to engage in coordinated activity, much like a conductor will summon up various sections of an orchestra in a symphony.
Even the simple act of catching a ball necessitates an impressive coordination of multiple groups of neurons to perceive the object, judge its speed and trajectory, ...
'Wyldewood,' first release from Elderberry Improvement Project
2010-09-21
SPRINGFIELD, MO—The American elderberry is showing promise as a profitable commercial fruit crop. Traditionally used for making jelly, juice, and wine, elderberry is becoming increasing important in North America's burgeoning "nutraceutical" industry. Historically, elderberries have mostly been harvested from the wild; researchers have made recently made efforts to select or develop improved cultivars. Increased interest and emerging markets are encouraging scientists to develop improved elderberry cultivars that yield consistent, superior production. Scientists from the ...
'Blue Suede' premiers: New blueberry recommended for home gardeners
2010-09-21
GRIFFIN, GA—Blueberry aficionados will soon have a tasty, colorful new variety for their backyard gardens. Blueberry experts D. Scott NeSmith and Mark K. Ehlenfeldt introduced 'Blue Suede™' in a recent issue of HortScience. The new southern highbush blueberry (Vaccinium hybrid) was released by the University of Georgia's College of Agricultural and Environmental Sciences, the University of Georgia Agricultural Experiment Station, and the U.S. Department of Agriculture–Agricultural Research Service. 'Blue Suede™' is targeted for sales to the home gardener market.
According ...
Purdue researcher cracks open secret of oysters' ability to stick together
2010-09-21
WEST LAFAYETTE, Ind. - A Purdue University-led research team has uncovered the chemical components of the adhesive produced by oysters, providing information that could be useful for fisheries, boating and medicine.
A better understanding of oysters' ability to stick together to form complex reefs would help those trying to boost the dwindling oyster population, aid in the creation of materials to keep boat hulls clean without harming the environment, and bring researchers one step closer to creating wet-setting adhesives for use in medicine and construction.
Jonathan ...
Rotating high-pressure sodium lamps provide flowering plants for spring markets
2010-09-21
EAST LANSING, MI—When consumers visit garden centers in spring they will most likely buy flowering ornamental plants that are ready for their home gardens. Studies have shown that consumers favor plants that are already in flower rather than those that are "vegetative"—a preference that can present multiple challenges for commercial growers.
To satisfy consumers' wishes, producers of ready-to-flower ornamentals like bedding plants and perennials start growing crops far in advance of the spring buying season, often during the dark and short days of winter. When the days ...
NASA sees Tropical Storm Julia getting 'dusted'
2010-09-21
Dust has been blowing into the Eastern Atlantic Ocean from Africa's Saharan Desert, and a NASA satellite captured some of that dust east of Tropical Storm Julia.
NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) instrument on the Terra satellite captured a visible image of Tropical Storm Julia on Sept. 18 at 13:50 UTC (9:50 a.m. EDT) and noticed a large area of Saharan dust over the Atlantic Ocean, to Julia's east.
On Sept. 20 at 5 a.m. EDT, Julia was still holding on to tropical storm status with maximum sustained winds near 45 mph. Julia was located about ...
NASA satellites and aircraft studied Hurricane Karl before it faded
2010-09-21
Hurricane Karl made landfall near Veracruz, Mexico on Friday, Sept. 17 and moved inland over Mexico's rugged terrain, which took the punch out of the storm. As Karl was moving into Mexico, NASA aircraft and NASA satellites were gathering data from this storm that jumped from a tropical storm to a Category 3 hurricane the day before.
Karl had maximum sustained winds of 115 mph when it made landfall on Friday afternoon, Sept. 17. That made Karl a Category three hurricane on the Saffir-Simpson scale, and a major hurricane to boot.
On that day, NASA's Genesis and Rapid ...
Winter drought stress can delay flowering, prevent fruit loss in orange crops
2010-09-21
LAKE ALFRED, FL—Successful mechanical harvesting of perennial fruit crops requires efficient, economical harvesting systems that do not reduce trees' production life or diminish fruit quality. Most of the world's citrus is now harvested manually, but the use of efficient and lower-cost mechanical harvesting techniques is expected to increase in the next few years, especially in the large citrus plantations in Florida and Brazil. The citrus industry is ramping up efforts to extend the harvest season past June, when the following year's crop becomes large enough to be susceptible ...
NASA captures very heavy rain in Typhoon Fanapi and 2 landfalls
2010-09-21
Taiwan experienced a landfall and a soaking from Typhoon Fanapi, and NASA and JAXA's TRMM satellite noted a large area of very heavy rain in the system before it made landfall this weekend. NASA's Aqua and Terra satellites also captured impressive visible images of Fanapi just before the Taiwan landfall, and as it was making landfall in eastern China very early today.
The Tropical Rainfall Measuring Mission satellite known as TRMM captured an image of Typhoon Fanapi's rainfall on Sept. 18 at 0653 UTC (2:53 a.m. EDT) after the typhoon had intensified to 105 knots (~121 ...
Introducing 'Champagne', new disease-resistant fig
2010-09-21
BATON ROUGE, LA—The ancient fig tree, first imported to the United States during the 16th century, thrives in areas of California and the South Atlantic and Gulf Coast areas of the U.S. One of the most popular trees grown in Southern backyards, fig is favored for its versatile fruit and low-maintenance production.
Charles E. Johnson, Ed O'Rourke, and James E. Boudreaux, from the Louisiana State University Agricultural Center in Baton Rouge, introduced a new fig they named "Champagne" in a recent issue of HortScience. According to the report, the new fig performed well ...
NASA's MODIS and AIRS instruments watch Igor changing shape, warming over 3 days
2010-09-21
The Moderate Resolution Imaging Spectroradiometer or MODIS, is an instrument that flies on NASA's Aqua and Terra satellites and provides incredible views of tropical cyclones like Hurricane Igor, from its vantage point in space. Imagery from the MODIS instruments on these two satellites captured from Sept. 18 to 20 showed that powerful Hurricane Igor in the Atlantic Ocean is morphing from a rounded storm to more of a comma-shaped storm.
The MODIS instrument on NASA's Terra satellite captured a visible image of Igor at 11:30 am on Sept. 18, while MODIS in the Aqua satellite ...
Food for thought, er, well...
2010-09-21
Ever wonder why it's such an effort to forget about work while on vacation or to silence that annoying song that's playing over and over in your head?
Mathematicians at Case Western Reserve University may have part of the answer.
They've found that just as thinking burns energy, stopping a thought burns energy - like stopping a truck on a downhill slope.
"Maybe this explains why it is so tiring to relax and think about nothing," said Daniela Calvetti, professor of mathematics, and one of the authors of a new brain study. Their work is published in an advanced online ...
Low-calorie cheesecake? Why we have trouble estimating calories
2010-09-21
When it comes to estimating calorie counts, Americans aren't really on the ball. According to a new study in the Journal of Consumer Research, this may be because of the order in which we encounter the food.
"The sequence in which items are considered often influences our evaluations of these items," writes author Alexander Chernev (Northwestern University). "The focus on sequential estimation is important because many meals are ordered and consumed sequentially rather than at once. Moreover, to control their daily calorie intake, people often estimate not only the amount ...
Santa Fe homeowners weigh in on landscape preferences
2010-09-21
LAS CRUCES, NM—While municipalities may mandate communitywide water conservation measures, individuals—particularly homeowners—can make significant contributions to water conservation in urban environments. Hoping to provide urban planners with more information about how residents' landscape preferences affect municipal water supplies, a team from New Mexico State University surveyed homeowners in Santa Fe about their attitudes toward high desert plants. Rolston St. Hilaire, Dawn M. VanLeeuwen, and Patrick Torres reported on their study of residents' preferences for urban ...
Scientists uncover process enabling toxoplasmosis parasite to survive homelessness
2010-09-21
INDIANAPOLIS — The parasite responsible for toxoplasmosis requires a stress response system that helps it survive the move to infect new cells, Indiana University School of Medicine scientists have reported, a discovery that could lead to new treatments to control the disease.
Parasites such as Toxoplasma gondii invade host cells, replicate and then must exit to find new host cells to invade. Traveling outside their host cell exposes the parasites to environmental stresses that limit how long they can remain viable while searching for new host cells.
The researchers ...
Learning how consumers value products
2010-09-21
Suggesting to consumers that they will use a product frequently can actually reduce their interest in purchasing the product, according to a new study in the Journal of Consumer Research.
"When consumers estimate the value of a durable product, they consider not only the absolute number of times they think they will use the product, but also the number of time they will use the product relative to other consumers," write authors Rebecca W. Hamilton, Rebecca K. Ratner (both University of Maryland, College Park), and Debora Viana Thompson (Georgetown University).
The ...
Could learning self-control be enjoyable?
2010-09-21
When it comes to self-control, consumers in the United States are in trouble. But a new study in the Journal of Consumer Research says there's hope; we just need a little help to see self-regulation as fun.
"Self-control failures depend on whether people see activities involving self-control (e.g., eating in moderate quantities) as an obligation to work or an opportunity to have fun," write authors Juliano Laran (University of Miami) and Chris Janiszewski (University of Florida, Gainesville).
According to the authors, approximately one in five U.S. citizens over the ...
Windborne dust on high peaks dampens Colorado River runoff
2010-09-21
On spring winds, something wicked this way comes--at least for the mountains of the Colorado River Basin and their ecosystems, and for people who depend on snowmelt from these mountains as a regional source of water.
"More than 80 percent of sunlight falling on fresh snow is reflected back to space," says scientist Tom Painter of the Jet Propulsion Laboratory in Pasadena, Calif., and the University of California at Los Angeles. "But sprinkle some dark particles on the snow and that number drops dramatically."
The darker dust absorbs sunlight, reducing the amount of ...
Buyer backlash: Why do slogans about saving money increase spending?
2010-09-21
A new study in the Journal of Consumer Research reveals a strange facet of consumer behavior: people behave differently when they encounter companies' brands than they do when they encounter their slogans.
"Exposure to the retailer brand name Walmart, typically associated with saving money, reduces subsequent spending, whereas exposure to the Walmart slogan, (Save money. Live better.) increases spending," write authors Juliano Laran (University of Miami), Amy N. Dalton (Hong Kong University of Science and Technology), and Eduardo B. Andrade (University of California, ...
Money, drugs and chicken feet? What consumers will do for social acceptance
2010-09-21
People who feel excluded will go to any length to try to become part of a group, even if it involves spending large sums of cash, eating something dicey, or doing illicit drugs, according to a new study in the Journal of Consumer Research.
"Social exclusion prompts people to use money and consumption in the service of affiliation," write authors Nicole L. Mead (Tilburg University), Roy F. Baumeister (Florida State University), Tyler F. Stillman (Southern Utah University), Catherine D. Rawn (University of British Columbia), and Kathleen D. Vohs (University of Minnesota).
"An ...
Hard-wired for chocolate and hybrid cars? How genetics affect consumer choice
2010-09-21
Clues to consumer behavior may be lurking our genes, according to a new study in the Journal of Consumer Research.
"We examine a wide range of consumer judgment and decision-making phenomenon and discover that many—though not all of them—are in fact heritable or influenced by genetic factors," write authors Itamar Simonson (Stanford University) and Aner Sela (University of Florida, Gainesville).
The authors studied twins' consumer preferences to determine whether or not certain behaviors or traits have a genetic basis. "A greater similarity in behavior or trait between ...
Consumers willing to pay more for locally grown apples
2010-09-21
BURLINGTON, VT—A 2008 study found that organic apples represented 4.6% of total apple sales in the United States, up from 3.5% in 2007. In Vermont, apples have been the most important fruit crop for many years, playing an important role in the state's economy—so important, in fact, that apples were named the state's official fruit in 1999. Vermont apple growers, facing a host of challenges such as increasing production costs and intensifying competition from imported apples, are looking for ways to succeed in the emerging organic food market.
Qingbin Wang and Robert Parsons ...
New study indicates higher than predicted human exposure to the toxic chemical bisphenol A or BPA
2010-09-21
COLUMBIA, Mo. – Researchers have discovered that women, female monkeys and female mice have major similarities when it comes to how bisphenol A (BPA) is metabolized, and they have renewed their call for governmental regulation when it comes to the estrogen-like chemical found in many everyday products.
A study published online in the Sept. 20 NIH journal Environmental Health Perspectives ties rodent data on the health effects of BPA to predictions of human health effects from BPA with the use of everyday household products. The study was authored by researchers at the ...
Investigational eye treatment: Corneal collagen crosslinking research study
2010-09-21
Teaneck, NJ – The Cornea and Laser Eye Institute, with Principal Investigator, Peter S.
Hersh M.D., is conducting a research study to study the safety and effectiveness of corneal
collagen crosslinking (CXL) using Riboflavin/Dextran and Hypotonic Riboflavin in
patients with progressive keratoconus and corneal ectasia.
Keratoconus is a disease of the cornea, the clear front lens of the eye (like the crystal on a
watch), that occurs in the overall population at a rate of about one in 2000. It usually
begins in the teens and 20's and can worsen over time. It is often ...
New app for genes on Earth is tool for scientists and entertaining for all
2010-09-21
The scientists who put an innovative tree of life online last year now have made that same resource available -- free -- for smartphones. The new "TimeTree" application lets anyone with an Apple iPhone harness a vast Internet storehouse of data about the diversity of life, from bacteria to humans. The intuitive interface is designed to answer a simple question, quickly and authoritatively: how long ago did species A and species B share a common ancestor?
"Our new iPhone app can be fun for people who want to learn how long ago their cat and dog began evolving down different ...
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