Tag: "fresh" at biology news

The oldest Homo sapiens

...ranean seafloor that were deposited when floods of fresh water poured out of the Nile River during rainy times. The Blue Nile and White Nile tributaries share a drainage divide with the Omo River. During ancient wet periods, monsoons on the Ethiopian highlands sent annual floods surging down the Nile syste...

USGS featured at AAAS - Nation's largest science meeting

...anges of Central Asia. Glaciers supply much of the fresh water and hydroelectric power in the region. This shared economic interest and the mitigation of flood and landslide hazards could improve relations among this region's nations or incite conflict. The diminishing glaciers could open new corridors fo...

Marine seaweed can detoxify organic pollutants

...id, that will perform this function in terrestrial fresh waters, such as streams or lakes. These research outcomes should lead to the development of new bioremediation technologies that use seaweed in engineered systems to remove organic contaminants from the marine environment, the scientists said. Stud...

Drug-resistant bacteria on poultry products differ by brand

...evious epidemiological studies have indicated that fresh poultry products are a major source of Campylobacter infections in humans. Exposure can occur from undercooked products or through cross-contamination during food preparation, when raw poultry is handled in the kitchen. The danger of infection is hei...

Researchers trace evolution to relatively simple genetic changes

...heir backs -- live both in the seas and in coastal fresh water habitats all around the northern hemisphere. Sticklebacks are enormously varied, so much so that in the 19th century naturalists had counted about 50 different species. But since then, biologists have realized most populations are recent desce...

Same mutation aided evolution in many fish species, Stanford study finds

...ons. "Almost every time the stickleback evolves in fresh water it loses the armor," said David Kingsley, PhD, professor of developmental biology and lead author of the study. "Although the trait evolved many times all over the world, nature uses the same gene each time." Sticklebacks evolved from a relativ...

Cancerous or harmless? Three genes might tell the tale

...he investigators will confirm their findings using fresh thyroid follicular nodule tissue obtained by fine-needle aspiration. This work is under way. Other OSU researchers involved in this study were Frank Weber, post-doctoral researcher in Eng's lab; Lei Shen, assistant professor of statistics; Carl D. M...

Scientists collaborate to assess health of global environment

...arried out to meet demand for food, fiber, timber, fresh water, fuel and other resources has begun to jeopa...been degraded over the last 50 years--most notably fresh water, fisheries, air and water purification, and the regulation of climate, natural hazards and pes...

Essential mangrove forest threatened by cryptic ecological degradation

...ffect the coastal zone by introducing an excess of fresh water. The consequences range from adverse shifts in the composition of mangrove tree species to disrupted ethnobiological relationships, lagoon fisheries, and many additional functions provided by mangroves. The authors believe that the worrying asp...

Sea skate experiment sheds light on human cell transport

... skinny, graceful fish can swim from salt water to fresh water. For humans, such a drastic environmental change would prompt an equally drastic physiological change: Our cells would take in too much water, diluting blood and other body fluids and rapidly causing death. So how do skates do it? Goldstein and...

Global team member comments on landmark ecosystem report

...benefits that ecosystems provide, such as food and fresh water. This increases the likelihood of the collapse of fisheries, the emergence of new diseases, the degradation of water supplies and other abrupt changes that will seriously affect human health, the report states. "In the past, we were able to fee...

Earth's services in peril, report concludes

...le benefits provided by the Earth everything from fresh water and clean air to productive soils, wild fish...n recent decades to meet growing demands for food, fresh water, fiber and energy," she said. "Although these changes have helped to improve the lives of bill...

Joslin Diabetes Center announces new nutrition guidelines

... people with type 2 diabetes. The best sources are fresh vegetables, fruits and beans. Whole grain foods are preferable to eating pasta, white bread, white potatoes and low fiber cereal. Fiber intake should be approximately 50 grams daily if that amount can be tolerated; a minimum of 20-35 grams per day is...

Clearing the air on airplane cabin air

...ystems with the microbial equivalent of outside or fresh air. Tests have shown that the air downstream of Pall cabin air filters is cleaner than outside air, both on the ground and during flights. The corona virus that causes SARS and the avian flu virus are in similar size ranges and parameters to the mic...

Butterfly migration could be largest known

...lts in the spring, they migrate north in search of fresh food and breeding grounds, powered by a supply of yellow fat they have built up over the winter. Painted ladies migrate every year, but usually less conspicuously and in far fewer numbers. This year, however, exceptionally high winter rainfall in sou...

Talking robots, green buildings, and shockwave healing

...typically designed with large openings to bring in fresh air, and smaller openings to let air out, a situation that can severely limit a room's ability to shield itself from outside noise (Paper 1pAA4). Acoustical consultant Cornelis Overweg of Acetech, Inc. ( coverweg@acentech.com ) in California explain...

Water research initiatives at UW-Madison

Reporters looking for fresh environmental research angles for Earth Day (April...E' EMPOWERS LOCAL CONSERVATION EFFORTS Armed with fresh ecological expertise, ordinary citizens will move to the forefront of the campaign to better underst...

Putting ecology back into river restoration

...nd: "Given the rapid rate of global degradation of fresh waters, and the fact that river and stream restoration has become a booming enterprise, it is time to agree on what constitutes successful river and stream restoration." Palmer and her colleagues say that the success of river restoration should be ju...

Sensorial evaluation of the freshness of fish

... the objective evaluation of certain attributes of fresh fish (skin, eyes, gills, etc.) using a points system (from 0 to 3). No sample can be rejected based on just one criterion, given that several attributes are taken into account simultaneously. The total QIM points score is not influenced by small diff...

ESA at the European Geosciences Union General Assembly

...he historic Huygens landing on Titan are providing fresh insights into the distant methane-rich moon of Saturn, while Mars Express continues to deliver spectacular images of the Martian surface and new information on the planet's atmosphere and climate. At the same time, Smart-1 is commencing the first det...

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