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Tag: "strike" at biology news

Keeping the immune system from starting a 'food fight'

...ntinued investigation. Cells and organisms must strike an appropriate balance between nutrient sufficiency and surplus, the researchers explained. While adequate amounts of nutrients must be obtained to ensure health and survival, chronic overeating can lead to obesity and an array of associated metaboli...

Healthy coral reefs hit hard by warmer temperatures

...When disease or stressful environmental conditions strike a coral colony, the polyps expel their algae. This algae loss makes the coral appear pale. "We're left with a big question. Can corals and other marine species successfully adapt or evolve, when faced with such change?" Rice said. Understanding...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...has been difficult, in part because they appear to strike at night. Among the most elusive of killer whales are the "transient" type, so-named because they follow unpredictable paths as they travel from location to location along the west coast of North America. Transients, which also distinguish themselv...

Rare soft-shell turtle, nesting ground found in Cambodia

...rful enough to crush bone. “It has the fastest strike of any animal I’ve ever seen, including cobras,?Emmett said. The researchers also found a nesting ground for the species and brought back eggs that have since hatched. The hatchlings were released into the wild on May 8, together with another adul...

Researchers find hepatitis A and hepatitis C attack same protein to block immune defenses

...at these two very different viruses have chosen to strike at the same one," said Dr. Stanley Lemon, director of UTMB’s Institute for Human Infections and Immunity and National Institutes of Health-funded Hepatitis C Research Center. Lemon is senior author of a paper on the research appearing online this wee...

Male contraception: One door opens, another closes

...e effects. "We knew it was going to be either a strike out or a home run," says Amory. "It was a big disappointment." Unbeknownst to Amory, pharmaceutical giant Schering was simultaneously testing miglustat in rabbits and another strain of mice, and found the same results--contraception in the first...

Study shows antibiotic-resistant bacteria responsible for increase in muscle infections

...s. Recently, however, newer forms of MRSA began to strike healthy people who have not been recently hospitalized or undergone invasive medical procedures. These community-acquired strains appear to be readily transmitted from person to person and can cause serious skin and soft tissue infections as well as ...

Public Library of Science to launch new, open access journal on neglected tropical diseases

...s.org ) will focus on the overlooked diseases that strike millions of people every year in poor countries, i...rogress." Each year, neglected tropical diseases strike millions of the world's poorest people in sub-Saharan Africa, Asia, and Latin America. They stunt c...

Study: Living coral reefs provide better protection from tsunami waves

...veloped the first-ever computer model of a tsunami strike against a reef-bounded shoreline, using a volcanic island as an example. The model demonstrates that healthy reefs offer the coast at least twice as much protection as dead reefs. The finding provides the first quantitative confirmation of a widely h...

Recurrence of a flu pandemic similar to infamous 1918 flu could kill 62 million

...f a similarly virulent strain of flu virus were to strike today, about 62 million people worldwide would die. This could represent a devastating impact on global mortality, more than doubling deaths from all causes in a single year. However, only four percent of these fatalities would occur in the develo...

Embryo tests give parents the choice

...ex, as well as screening for diseases that may not strike until late in life, if at all. Non-medical sex selection accounted for 9 per cent of PGD tests conducted in the US in 2005, while 28 per cent of the clinics surveyed are now offering PGD to detect a propensity for adult-onset diseases such as Alzheim...

Snakes' virtual glasses, leopard spots and all-optical transistors

...: a signal beam and a control beam. When the beams strike the patterned film they produce plasmons, which are essentially blobs of electron gas near the surface of a metal. Varying the intensity and the color of the control beam causes the plasmons to interact in ways that enhance or decrease the transmissi...

Large dinosaurs were extremely hot in their day, UF study finds

...ournal PLoS Biology. "One of the first things to strike me about our results was that larger dinosaurs, for their size, were much more active than contemporary reptiles," said Andrew Allen, Ph.D., a researcher with the NCEAS. "If these animals functioned at temperatures of 35 or 40 degrees centigrade, it ...

Indonesia - disaster relief aid in action

ISN's immediate response to this latest quake - to strike the Indonesian island of Java - was to call once again on its Renal Disaster Task Force (RDRTF). Under the leadership of Dr. Raymond Vanholder, the Task Force acted rapidly by sending two scouts to join a team from Médecins Sans Frontières (MSF). T...

A step forward in the fight against bacterial infections

Bacterial infections can strike anyone, and they can sometimes be fatal. Because more and more bacteria are becoming resistant to the pre-eminent remedy; antibiotics; the search for new remedies against bacterial infections is in high gear. Research by scientists from the Flanders ...

UC Berkeley researchers create a biologically-inspired artificial compound eye

...ls are formed at the angle of the light beams that strike them, Lee used a condenser lens to bend his light source into a spoke-like pattern of beams that converges on the eye's dome. The end result is that the waveguides pierce the resin at angles that head toward the center of the dome, just like the conv...

Plant wounds trigger bacteria

...es the plant's own DNA. Crown gall tumors mostly strike the trunks or stems of dicot plants, tree or vines near the ground where freezing occurs during winter and a wound forms in spring. Such fruit trees as cherries and peaches, raspberries and high-quality vine grapes like chardonnay and cabernet sauvig...

Master regulatory gene found that guides fate of blood-producing stem cells

... become one of several mature blood-cell types; or strike a balance in which one daughter cell becomes an HSC and the other becomes a mature blood-cell type. "We know that in diseases like leukemia, the first scenario-no differentiated cells, two HCSs developing-must occur because more and more stem cells ...

Most embryos produced during IVF do not result in live births

...are transferred do not implant. It is difficult to strike a balance between these two needs." Patrizio said he and his fellow physicians strive to better identify the embryos with the most potential. But addressing the growing pressure to transfer fewer embryos to reduce multiple births is a difficult task...

Scientists to mimic nature for newest cancer drugs

... the initiatives don't lead to a reduction in ship strike mortalities without required changes in the operation of ships within right whale habitats and migratory corridors. And although the risk of fishing gear entanglements have been addressed through gear modifications and selective area closures, paper...

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