environments 2 2

Tag: "environments" at biology news

Pharmaceutical compounds found in nation's fresh water

...ment practices. They are often detected in aquatic environments such as lakes, rivers and ground water, which can receive direct inputs of treated waste water. "We don't know what toxicological effects these detectable concentrations of pharmaceuticals pose, although typical concentrations in one liter of gro...

Computer with brain connections changing quality of life of paralyzed

...e invalid for paralyzed people living in protected environments because most of the questions do not apply to the life of a paralyzed person. Special instruments had to be developed," says Niels Birbaumer, Ph.D., author of the study. This contrasts previously accepted notions as many doctors believe that the q...

Why do cold animals make bigger babies?

...ulatus), which revealed that the lizards in colder environments produce larger offspring than lizards in warmer environments. So why do animals in colder climates produce larger offspring? One theory suggests the larger size of offspring counteracts their slow growth in the cold. Yet another theory suggests la...

Seagrass ecosystems at a 'global crisis'

...ly influence the physical, chemical and biological environments of coastal waters. They provide critical habitat for aquatic life, alter water flow and can help mitigate the impact of nutrient and sediment pollution. ...

Life in the extreme

...e active areas of fluid seepage, are other extreme environments discovered in the 1990s. These harsh conditions gi...of the most extreme and scientifically challenging environments for life to exist on the planet. Extensive fields of hydrocarbon-rich gas seepage, mud volcanoes a...

Natural anti-viral enzyme helps keep cancer cells alive, researchers find

... system fights cancer and also helps create tissue environments permissive to cancer, Dr. White said, but a cancer-promoting role for the host defense response has not been previously seen. It's a straightforward matter to block the action of TBK-1, so this might be a promising avenue for new cancer treatments,...

A buffet for early human relatives

... diet and therefore were more adaptable in savanna environments than other primates which had a more restricted diet." Other studies have suggested that the diets of human ancestors and relatives became more varied about 3 million years ago when Africa's climate started getting drier and more seasonal. That w...

Ocean seep mollusks may share evolutionary history with other deep-sea creatures

...ounding waters, but similar chemically challenging environments exist at hydrothermal vents, fissures in the ocean... were evolutionary "stepping stones," creating new environments for seep animals to evolve into a plethora of new species. But Kiel and Little's work shows that mor...

From hot springs to rice farms, scientists reveal new insights into the secret lives of archaea

...ditions. Indeed, many species of archaea thrive in environments that would kill other organisms, from Yellowstone hot springs to the hyper-salty Dead Sea to streams polluted by mining waste where the pH level is equivalent to battery acid. Archaea even inhabit the warm, dark environs of our intestines and mouth. ...

Particle size matters to bacteria ability to immobilize heavy metals

...to describe the effect of nanoparticles on natural environments where they interact with microorganisms. This effort by the Virginia Tech team is addressing one component of a wider effort by various scientists led by a PNNL team in looking at the fundamental mechanisms of metal reduction by Shewanella and its ap...

Worms produce surprise insight into human fever

...d “poikilotherms?like worms migrate toward warmer environments in response to infections. But the mechanism of fever as a response to infection is still largely unknown. The activation of the HSF-1 pathways by heat shock and its function in C. elegans immunity provides both a molecular explanation for the ben...

New dyslexia theory blames 'noise'

...er compensate. "What is important is that noisy environments are the rule and not the exception," he added, citing a study from South Bank University in the U.K. that found average noise levels in primary classrooms to be as high as near a busy intersection. "What Sperling and Lu's data suggest is that the...

Nano-devices hold promise for early-stage cancer detection

...earch. It will create novel and exciting learning environments for training, and attract new industrial partnerships." Plans call for the lab to occupy approximately 9,600 square feet and include a clean room, bonding and packaging facilities, characterization facilities, and prototyping and testing. "The ...

Genomic comparison of lactic acid bacteria published

...d nitrogen acquisition from the nutritionally rich environments they inhabit and reflect a limited range of biosynthetic capabilities promising broad industrial applications. Lactic acid-producing bacteria play a key role in the production of fermented foods and beverages, accounting for tens of billions of dol...

Bacteria that use radiated water as food

...teria living in groundwater or in other subsurface environments is not news. Until now, however, it was not known whether subterranean microorganisms were recent arrivals bound for extinction or whether they were permanent fixtures of an unlikely habitat. Also, many scientists have been skeptical of subsurface ba...

Wheat gene may boost foods' nutrient content

...rs are currently testing the new lines in multiple environments to determine if the introduction of GPC-B1 has any negative impacts on yield or quality. The researchers hope that these efforts will soon translate into food products with enhanced nutritional value. ...

Squid skin reveals hidden messages

...g system in squid and other cephalopods in natural environments would provide insight into animal camouflage mechanisms and may uncover similar examples in other species. ...

Study suggests evolutionary link between diet, brain size in orangutans

...imilar evolutionary pressures within resource-poor environments also may explain the smaller-than-normal brain size of a controversial 18,000-year-old skull recently found on the Indonesian island of Flores, Taylor and van Schaik said in their article. In announcing the find in 2004, the skull's discoverers sug...

Ocean temperature predicts spread of marine species

...l. They are consumed by predators, encounter harsh environments or never reach their destination and starve. For endangered species, survival of some animals may depend on whether offspring from parents in one protected area can get to another area where they are safe from harvest. "In warmer waters, marine prote...

A reason why video games are hard to give up

...und. Though different types of games and game environments were studied, Ryan points out that "not all video games are created equal" in their ability to satisfy basic psychological needs. "But those that do may be the best at keeping players coming back."...

1 2 3 4 5 6 7