Tag: "warm" at biology news

New treatment may relieve chronic pain, as reported in the 19 November issue of Science

...response to stimuli that are not painful at all (a warm shower, for example). The group of neurons responsible for these inappropriate responses transmit electrical signals to each other with the help of a chemical messenger called "substance P." These neurons, which collectively make up less than five p...

One theory solves two ancient climate paradoxes

... billion years ago, where the environment was very warm with a sun that is much cooler than today's," says Dr. Gregory S. Jenkins, assistant professor of meteorology. "Then I looked at the late Proterozoic, where some researchers suggest episodes of snowball Earth where the entire globe ices up and I real...

Fertilizers linked to amphibian deaths

...l well below those that the EPA considers safe for warm water fishes. Nitrates themselves are of low toxicity, the study pointed out, but they cause health problems when reduced to nitrites. Nitrite levels can become higher in specific areas such as shore sites with high contents of organic matter, and al...

Reversible bone shrinkage documented in Galapagos iguanas

... and south. During El Niño years, however, warm currents and heavy rains raise water temperatures. Less digestible brown algae replaces the iguanas’ preferred green and red algae. In years immediately after El Niño events, surviving iguanas ate well and got fat, then started growing lo...

Colorado State researcher thinks Groundhog Day is about fatty acids rather than traditional tricks of light and shadow

.... Marmots and other hibernating animals spend the warm season gorging on leafy plants, seeds and nuts that contain varying amounts of these fatty acids. Autumnal temperature drops trigger a series of physiological events that can cause hibernation. The 2000 Fulbright award is Florant's second and one of...

Droughts worse than the 1930's likely in the 21st century

...have occurred on a global scale (like the medieval warm period from 1,000 to 1,200 AD). Now intent on identifying the trigger for extreme climate shifts affecting water supplies in the past, the researchers speculate about the impact of current, human-induced global warming. "Our concern is that hum...

USGS scientists find new population of Asian swamp eels in south Florida

...asily in even a few inches of water, especially in warm water. Swamp eels, which reach lengths of three feet or more, are predators, feeding on animals such as worms, insects, shrimp, crayfish and other fishes and frogs. Yet, said Curnutt, the eels are also able to survive weeks -- and possibly months -...

Study points to U.S. as generator of greenhouse gases

...ee in the past century, and models suggest it will warm from about five to nine degrees in the next century," Neilson said. "Rainfall will probably also increase, but it will be regionally variable. There are still many people who don't believe these models are accurate, but the balance of evidence sugges...

Manatees saved by ONR-supported technology

...due to their slow maneuverability and penchant for warm water off the coast of Florida, often get killed in collisions with boats or by entrapment in man-made structures and nets. The new protection system at Port Canaveral, operated by acoustic sensors, is designed to prevent the lock gates from closing ...

Reports of "weird life" almost stranger than fiction

...ting factor is not the cold itself but the lack of warm hours,"Friedmann said. "They need some heat to keep alive." But what makes the clock stop altogether is dehydration, said James Clegg from the University of California at Davis. That is, unless you're a microscopic invertebrate. The embryos of bri...

Sequencers take a bird in hand

..., suggesting that birds and mammals share not only warm bodies and backbones, but basic genome structure as well....

Shedding light on luminescence: Scientists visualize structure of the photoprotein aequorin

Anyone who's spent time at a beach on a warm summer night has seen them: luminescing ctenophores that twinkle like tiny stars in moonlit waters. No one knows exactly why these comb jellies flicker and glow, but Marine Biological Laboratory (Cape Cod, Massachusetts) senior scientist Osamu Shimo...

Understanding of floral scents blossoms in Purdue laboratory

...ost plants. Because these oils evaporate easily in warm weather, scientists call them volatile compounds. The aroma of a flower may contain as few as seven to ten different oils, as in snapdragon or petunia, or as many as 100 different chemicals, as is the case with orchids. Dudareva has been studying fl...

Chillis - a red hot export?

.... Chillies have traditionally been used in warm countries to cover the taste of spoiled food and also to prevent it from going bad as quickly. It is surprising, then, to discover that chilli powder is itself susceptible to mould that can produce aflatoxin, thought to be a potent carcinogen. ...

Deadly for bacteria, great for consumers

...lyzed water for about five minutes at a moderately warm temperature (about 95-105 F) can reduce bacteria up to a million-fold, he says. One advantage of using electrolyzed water to kill bacteria on food surfaces is that it doesn't adversely affect quality as heat can, according to Hung. Trained ...

UNC-Duke Scientists develop interactive learning tool simulating nerve function

...unction. For many, its symptoms worsen during very warm weather or exercise. "We can go into the 'change temperature' section of a tutorial and cool the nerve cell by the tiniest bit, one-tenth of a degree. The student sees that function is now restored to the demyelinated portion of the nerve. Links exp...

Colorado set to fly biomedical experiments on September shuttle flight

...it during the beginning of the 11-day flight, then warm them to 65 degrees to speed up neural development. After the neural systems have developed to desired stages, the larvae will be automatically re-cooled by the automated hardware. "This provides a full sequence of their neural development, allowing...

Satellite imagery pinpoints El Niño's disruption of marine ecosystem

...ndances of phytoplankton extended far off shore in warm waters, which had not been observed before," said Mitchell. "We believe this increase off Baja may be due to blooms of 'nitrogen-fixing' cyanobacteria. Some open ocean cyanobacteria are more abundant in nutrient-depleted, strongly stratified waters b...

Turning down the Sun

... the surface temperature creeps upwards, since the warm air that would normally rise to heat it is being trapped below (New Scientist, 1 May 1999, p 28). Reducing the amount of sunlight just makes it colder. And that makes for more polar stratospheric clouds, which provides more ice to act as a substrate ...

Offshore oil and gas platforms could provide more than just fuel; cures for cancer and AIDS could be at stake

...ompletely different population of organisms in the warm waters of the Gulf than in the colder Pacific Ocean off the coast of California. By sharing information, the two institutions may be able to identify numerous organisms with health or commercial benefits, Rouse said. The MMS was established in 198...

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(Date:4/23/2014)... Cancer Center researchers say clinical trials for a ... (AML) are very promising. Patients treated with CPX-351, ... daunorubicin, are showing better responses than patients treated ... , "Acute myeloid leukemia is an aggressive blood ... especially in older patients," explained Jeffrey Lancet, M.D., ...
(Date:4/23/2014)... The American Society for Radiation Oncology (ASTRO) has ... Radiation Therapy for Endometrial Cancer: An ASTRO Evidence-Based ... therapy in the treatment of endometrial cancer. The ... 2014 issue of Practical Radiation Oncology ... The full-length guideline is available as an open-access ...
(Date:4/23/2014)... that targets an important brain receptor has a dramatic ... relapse behavior, a University at Buffalo animal study has ... may be a novel lead compound for treating cocaine ... research was published as an online preview article in ... the compound, RO5263397, severely blunted a broad range of ...
(Date:4/23/2014)... that can rapidly screen a large cell population ... that population has been seriously lacking," said Virginia ... Royal Society of Chemistry journal Chemical Science ... coworkers have developed a novel technique that detects ... Sci. , 2014, DOI: 10.1039/C4SC00578C, http://pubs.rsc.org/en/content/articlelanding/2014/sc/c4sc00578c#!divAbstract ). ...
(Date:4/23/2014)... Ill. - In a country as wealthy as the United ... 12 seniors do not have access to adequate food due ... food insecure. , Recent research at the University of ... Survey (NHANES) revealed that the seniors who are dealing with ... , "In 2011, 8.35 percent of Americans over age 60 ...
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