Tag: "food" at biology news

When plants need ants' help, bigger is better

...e seed and drags it off, often to an ant nest. The food reward gets eaten, and the discarded seed germinates in the rich soil of the colony's trash bin. In natural communities, such interactions between species can benefit both parties: the ant has a reliable source of food, and the plant's seeds are disp...

Mexican farmers effectively cultivate phenotypic diversity in maize

...maintaining the centres of diversity of this major food cereal. The research conducted in this context on the inter-population gene flow should lead to better assessment of the risks from a spread of genetically modified transgenic-corn varieties that might possibly be introduced into Mexico among traditi...

Biological oceanographers examine 'regime shifts' in complex marine ecosystems

...nges in oceanic conditions that spread through the food web. Depending on dynamics of the ecosystem, the r...production, an event that easily propagates up the food chain. Changes in ocean conditions can also affect migration patterns, growth rates, and mortality o...

Researchers describe long-perplexing 'magic spot' on bacteria

...against bacteria that cause cholera, pneumonia and food poisoning. This protein, called RfaH, regulates vi... coli and Salmonella enterica, bacteria that cause food poisoning in humans. Artsimovitch and her colleagues identified previously overlooked RfaH genes in ...

Brace therapy for osteoarthrisis, legal issues in TBI research, prosthetic fitting

...ppers, using a remote control button, and stabbing food with a fork in 14 individuals with SCI. Study data will allow surgeons to describe types of tasks patients should expect to perform after reconstructive hand surgery, informing patients' decision about surgery benefits. Self-image, world views ...

Ocean dye to help Rutgers scientists trace Hudson River's path miles into the Atlantic

...rch how metals and nutrients enter the base of the food chain. "Lagrangian" in the title of the study comes from Joseph-Louis Lagrange, an 18th century French mathematician who developed formulas for studying the motion of fluids while following their flow. The LaTTE acronym will have special ...

Only half of recalled meat and poultry is recovered, study finds

... study. This and other results suggest new federal food safety regulations that took effect in the late 19...s have not done enough to ensure the safety of our food supply, said Neal Hooker, co-author of the study and assistant professor of agricultural, environmen...

Fat cell hormone causes weight loss

...al fluid of normal mice, they showed no changes in food intake, but their metabolism rose. "The animal burns off more calories, so over time loses weight, which was very fascinating because we knew that leptin caused weight loss by suppressing appetite and increasing metabolic rate," explains Ahima. "Here...

Newfound grasshopper takes to the trees on Konza Prairie

...try to collect enough adult specimens to determine food source and feeding habits. Hopkins says though so little is known about this insect, it's likely the Grizzly Spur-throat Grasshopper has been in Kansas "as long as there have been trees." ...

The Hunter's Breath tells a story of adventure and discovery in Antarctica

... particularly interested in how the seals hunt for food beneath the ice. Finding the answers was a thrilling adventure for the scientists, and Williams wanted to share the experience with others. "It was such an exciting project and the discoveries were coming so quickly, it just seemed like...

Mantis shrimp may have swiftest kick in the animal kingdom

...rating the forces necessary to crush its preferred food - snails." When slowed down by a factor of 330, the video shows the mantis shrimp's fist pummeling the shell of a snail like a slow-motion glove smashing into the face of a boxer. Patek is currently conducting experiments which show that the blow yie...

High-fat fast-food breakfast produces rush of inflammatory factors into blood stream, UB study finds

...is pathway was activated in all subjects following food intake and resulted in the production of several inflammatory mediators regulated by it," Aljada said. Results also showed a mean increase of free radicals over baseline of 129 percent, 175 percent and 138 percent at the three sampling times, respec...

Vanderbilt doctors find citrus soda interacts with cyclosporine, maybe statins

...Sun Drop,'" he said. "I would hope this might make food and beverage manufacturers think about the way products are labeled, and hopefully provide better labeling with appropriate cautions for people."...

Phytoplankton may stimulate uptake of CO2

... issue of shifting an ecosystem structure that the food web is based upon by adding iron. We really have no idea what sort of positive or negative effects that would have." Another huge unknown in the experiment are the effects of time, cautioned Hales. The time scale of the experiment, 42 days, is not ...

UF researcher: Animals think in their own way, but unlike humans

..." he said. A dog would waste no time begging for food from a person who could not see them, as an experiment by a Hungarian team of researchers showed. Given a choice between two people sitting on a park bench holding out liver-sausage sandwiches, the dogs in the experiment always chose the person who c...

World's oldest mouse celebrates milestone birthday

...ory achieve longevity without the need to restrict food intake. Miller's mouse colony also includes strains of mutant dwarf mice, developed at Jackson Laboratories, which are very small and long-lived. Yoda is the longest-living member of this unusual tribe. Miller's geriatric mice are providing importa...

Carnegie Mellon U. develops microgel to recover enzymes for manufacturing, research assays

...other enzymes," noted Armitage. In addition to the food and dairy industries, enzymes are used in a wide variety of applications, including DNA testing in forensic labs, clinical tests for diagnosing diseases and synthesis of new pharmaceutical agents. Armitage and Patterson relied on biomolecular recogni...

East Texas feral hog numbers skyrocketed in last decade

...redation, disease transmission and competition for food withlivestock and wildlife." On the flip-side, however, many hunters see feral hogs as an extremely populargame species. Another Extension survey done in 1993 reported hog hunters paid in a range of $25-$1000 for a hog hunt with the average price p...

Scientists question reports of massive ant supercolonies in California and Europe

...to how they smell, and that seems to be related to food or environmental influences," Gordon noted. "Again, there isn't any evidence that there's any relationship between microsatellite diversity and aggression." Science and media Gordon and her coworkers maintain that too many researchers ...

Reporters from Science Magazine to receive ASM Public Communications Award

..., and Beijing, focusing on handlers of animals and food in an attempt to determine the source of the virus and how it was transmitted to humans. Normile has been the acting Tokyo Bureau Chief for Science magazine since 1995. He has covered government science policy, trends within the scientific com...

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