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Tag: "food" at biology news

Bitter taste identifies poisons in foods

...cations of the study, "Taste has a great impact on food acceptability and choice. A comprehensive understanding how food components contribute to taste is necessary to develop modern tools for both nutritional counseling ...

How ants find their way

... how ants find their way straight to the uncovered food in your kitchen? Now scientists have discovered ho...on strategy works. On a wood ant's first trip to a food site it follows a chemical trail left by earlier ants. This is a slow way of travelling as the ant n...

Professors to develop hand-held pathogen testing device

...ze of a thumbnail. Today, testing air, water or food for pathogens like cholera and dysentery must be done one pathogen at a time. Testing for each pathogen on an individual basis is dangerous, more expensive and time consuming. Simultaneous testing simplifies the process, making it safer and more cost...

New book uses ABCs to teach children microbiology

...n interest in, such as 'Why can cows use grass for food but humans can't?' and 'Why do we get gas after we eat beans?'" says author Rodney Anderson, a microbiologist and professor at Ohio Northern University, who presents photos he has collected of microorganisms shaped like letters of the alphabet to ill...

Otherworldly bacteria discovered two miles down

...with photosynthetic plants forming the base of the food web. But in dark places where sunlight doesn't reach, life has to depend on other energy sources. Other communities of "chemoautotrophs"--a word chained together from Greek roots meaning "chemical self-nourishment"--have been found in exotic places s...

Mars mission Risk 29: Scientists research ways to reduce radiation-induced brain damage

...o treat minor illnesses, an inadequate quantity of food and the possibility of "interpersonal tensions" between crew members. Risk 29 addresses the fact that Mars astronauts will be bombarded by high-energy cosmic radiation ?shielded on Earth by the atmosphere and the Van Allen Radiation Belts ?that few...

Researchers examine why food tastes bad to chemotherapy recipients

...iversity colleagues, Susan E. Duncan, professor of food science and technology, and YongWoo Lee, an assist...plinary investigative team combines proficiency in food oxidation and off-flavors, water chemistry, cell biology, and human perception. Dietrich, the princ...

Pilot study successful in taming allergic reactions to food

...e people.? Egg allergy is one of the most common food allergies among children in the United States, Bur...percent to 8 percent of children have some type of food allergy. Most children outgrow egg allergy by age 5, but some people remain allergic for a lifetime....

A wolf in sheep's clothing: Plague bacteria reveal one of their virulence tricks

...roup that also includes a pathogen responsible for food poisoning. These bacteria insert into their host cells proteins and other virulence factors, which kill by -- among other things -- disrupting the cells' normal structure. One of these proteins, called YpkA, attacks a cell's internal skeleton. Now, a...

Fruit fly aggression studies have relevance to humans, animals

...ies for an hour and a half, then gave them a small food droplet and watched them duke it out, counting the...e animals will very vigorously defend their little food patch, whereas others are relatively polite," Mackay said. "To determine if this had a genetic basis...

Researchers map spread of pathogens in the human body

...which is a bacterium that causes typhoid fever and food borne gastroenteritis in humans and animals, with ...al and veterinary consequences and threats for the food industry. The work is of broad significance as these novel research approaches are applicable to a ...

Dinosaurs -- stones did not help with digestion

... What do you do if you do not have good teeth, and food is hard to digest? Some herbivorous birds which ha... same time, they had to digest enormous amounts of food for their rapid growth and the metabolism of their gigantic bodies. Smoothly polished stones, which ...

Wheat gene may boost foods' nutrient content

...s hope that these efforts will soon translate into food products with enhanced nutritional value. ...

Renewed dolphin slaughter prompts new campaign

...uman consumption, dolphin meat is also used as pet food and fertilizer. The drive hunts also result in the capture of live dolphins for aquariums and interactive swim programs in Japan and China, in direct violation of the Code of Ethics maintained by WAZA. "The Japanese dolphin drive hunts are an abom...

Circadian gene helps the brain predict mealtime

...nvestigating how animals can predict the timing of food availability, researchers have identified the firs... a timing mechanism within the body that is set by food intake--but how this mechanism works at the molecular level is unknown. In the new work, the rese...

Protect patients from exploitation by alternative medicines industry

... of pharmaceuticals because they are classified as food supplements. So why do patients take alternative medicines" Why is science disregarded" How can it be that treatments that don’t work are regarded as life saving" Waxman believes that it is because the complementary therapists offer something t...

Contrary to common wisdom, scientist discovers some mammals can smell objects under water

...Catania created underwater scent trails leading to food and recorded how well the moles' could follow them. To keep the moles from using their tactile star, he put a grid-work between the animals and the scent trails. The openings in the grid were too small for the star appendages to squeeze through but l...

Disappearing nest egg: Researcher studying declining numbers of macaws

...me South American natives seek them out either for food or to kill them for their bright feathers. Brigh...ns," he adds. "They use this intelligence to find food and to stay alive." Brightsmith spent several months recently in the Amazon rain forests of easte...

Study suggests evolutionary link between diet, brain size in orangutans

...es of an evolutionary connection between available food supplies and brain size. Based on their comparati...ts say orangutans confined to part of Borneo where food supplies are frequently depleted may have evolved through the process of natural selection comparati...

A human taste for rarity spells disaster for endangered species

... gave his life for top their list. Overhunting for food and feathers pushed the great auk (Pinguinus impennis)--a flightless, now-extinct bird that laid only one egg a year--to the brink of extinction. But it was likely scientists and museum collectors anxious to nab an increasingly rare specimen, the aut...

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