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Tag: "environment" at biology news

The evolutionary triumph of flower power

...to 113 men and women in a retirement community ?an environment in which memory is often a personal concern. All 113 got flowers, some at the beginning of the study with a follow-up bouquet a few days later, some only on the second round and others after the study. Everyone also received a decorative booklet for ...

Grizzlies set to invade high Arctic?

...y large and diverse, and this complex but exciting environment is just coming into focus for Canadians in general. It's now a mainstream issue." ...

Advancements In Genomics Foster Deep Sea Discoveries

... while some 20 percent exists in the shallow water environment and a mere half of a percent is on land. Extreme deep ocean conditions include near freezing temperatures and up to 15,000 pounds per square inch of “skull-crushing?pressure. Scientists say precious information lies in discovering how organisms have...

Changing ecosystems throw scientists mega-challenges

...t." The report also focuses on water as a complex environment system. "All human natural systems are influenced by the distribution, abundance, quality and accessibility of water," it says. With continued human population growth and the uncertain impacts of of environmental change, the report states, ensuring a...

Scripps scientists find potential for catastrophic shifts in Pacific ecosystems

...growth rules will apply in each different physical environment and that small, random physical changes can provoke an amplified response in the biology in ways that may not be easily or symmetrically reversed. These measurements show that asymmetrical and even irreversible ecological change is possible." Irreve...

Stealth Worms May Improve Insect Pest Control

...s and even digests its tissues, creating a perfect environment for the EPN to grow and multiply. One or more adult generations live entirely inside the decaying insect. The third stage infective juvenile is the only one that can live outside the insect host. Numbering about 150,000 strong or more, these juvenile...

New strategies to reduce hospital-aquired infections

...ungi and parasites --can enter into the healthcare environment in several ways: direct contact with or ingestion of drinking water or ice, breathing aerosols from showers and faucets and even from improperly reprocessed medical devices. As hospitals increasingly recognize the risks to patient health, they are em...

Distributed Basic Local Alignment Search Toolkit (W.ND-BLAST)

...ungi and parasites --can enter into the healthcare environment in several ways: direct contact with or ingestion of drinking water or ice, breathing aerosols from showers and faucets and even from improperly reprocessed medical devices. As hospitals increasingly recognize the risks to patient health, they are em...

To Stop Evolution: New Way Of Fighting Antibiotic Resistance Demonstrated By Scripps Scientists

...micals) produced by other bacteria or fungi in the environment to kill off the competition. Scientists in the last century have discovered a number of these natural "antibiotic" products and have used them as the basis for treating bacterial infections. By the middle of the century, the threat posed by many typ...

Structure-building cell signals also may influence learning and memory

... bodies like viruses and toxins, from the external environment thus enabling the cell to store, transport or eliminate these materials. Synaptojanin-1 enables endocytosis when it disassembles a molecular coating on storage vesicles, which allows the cell to continue making new vesicles as needed. "This was a ne...

UN environmental agency steps up battle against marine pollution

...0 Parties and aims to protect human health and the environment from the inappropriate management of hazardous and other wastes. The Convention regulates the movement of hazardous waste and obliges its members to ensure that such wastes are managed and disposed of in an environmentally sound manner. It covers to...

Nanobacteria in clouds could spread disease, scientists claim

...epted as being widely prevalent in the terrestrial environment and that their evidence is compelling for the existence of these nano-organisms, even in the stratosphere. In humans, nanobacteria have now been identified on four continents, they add. Dr Sommer and Professor Wickramasinghe further suggest that nan...

Young Blood Revives Aging Muscles, Stanford Researchers Find

...in or brain-is a matter of the regenerative cell's environment rather than the cells themselves. Rando said that finding the youth-promoting factors in the blood is no small task. "It's as big a fishing expedition as you can possibly imagine," he said. With thousands of proteins, lipids, sugars and other small ...

Natural Killers Could Lead to New Hepatitis Treatments

...survival of these NKT cells when they get into the environment of the liver, and that's how the cells tend to accumulate there,?said Littman. “Our data don't support a critical role of CXCR6 in crawling behavior of the cells.?/p> Evidence for the role of CXCR6 in the survival of NKT cells ?as well as the cel...

Sponges as drugs

...t spatial competitors. This is important, as in an environment without spatial competitors, such as in a sponge culture, a lower concentration of the substances of interest to the pharmaceutical industry might be produced. Sponge culture The researcher tried to rear 9 of the 151 species of sponge observed but ...

Aircraft Cabin Ventilation Influences The Transmission Of Diseases In-flight

...ound that while commercial airlines are a suitable environment for the spread of pathogens carried by passengers or crew, the environmental control systems used in commercial aircraft seem to restrict the spread of airborne pathogens. Proper ventilation within any confined space reduces the concentration of airb...

Evidence of 600-million-year old fungi-algae symbiosis discovered in marine fossils

... where abundant algae lived in a shallow sub-tidal environment about 600 million years ago, Yuan and Xiao found three specimens that have evidence of two partners in a familiar relationship. "Enlargements of thin-section photomicrographs of the tiny specimens -- each of which was less than a millimeter in size -...

Life detection instrument passes key test on road to Mars

...isor. "We've shown on Earth, in the most Mars-like environment available, that this instrument is a thousand times better at detecting biomarkers than any instrument put on Mars before." The instrument has been chosen to fly aboard the European Space Agency's ExoMars mission, now scheduled to launch in 2011. Th...

Understanding how bacteria communicate may help scientists prevent disease

...h, "we are trying to understand how changes in the environment are integrated and result in changes in behavior," he said. What was not known until recently is a crucial missing link in the network in each bacterium that results in the ability to change behavior. Just before he came to Virginia Tech in August 2...

Grass makes environmentally friendly biofuel

...that grass biofuel pellets are much better for the environment because they emit up to 90 percent less greenhouse gases than oil, coal and natural gas do. Furthermore, he says, grass is perennial, does not require fertilization and can be grown on marginal farmland. "Any mixture of grasses can be used, cut in m...

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