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Tag: "dead" at biology news

Active Vaccine Prevents Mice From Developing Prion Disease

...survived only an average of 185 days, and all were dead by 300 days. The NYU scientists are in the process of redesigning the vaccine for deer and cattle. After choosing the appropriate bacteria for each vaccine, they must genetically modify it to carry the prion protein. "These technical issues are not ...

Bugs, even 'bad' ones, can be educationally beneficial, new book says

...ut in forests termites are important for recycling dead wood. Waldbauer spent 15 years studying the cecropia moth (Hyalophora cecropia), which he collected by driving along streets in Urbana, Ill., and retrieving cocoons from trees. With its colorful 5- to 6-inch wingspan, the nocturnal cecropia moth is ...

Ebola virus: from wildlife to dogs

...a secondary way, through contact with carcasses of dead animals (2). However, the virus's natural cycle is...re were many cases where dogs had eaten remains of dead animals infected with the virus, nonetheless without showing visible clinical signs. In order to con...

Bee mites suppress bee immunity, open door for viruses and bacteria

...e either infested with bee mites or mite free. The dead bacteria was used to trigger an immune response in the bees in the same way human vaccines cause our bodies to produce an immune response. They checked the bees for production of chemicals that disinfect the honey and for other immunity related chemi...

WHO suspends Marburg work, appeals for new funds

...f disease and traditional rituals for mourning the dead must be respected. When the public understands and accepts a few simple messages ?avoid contact with blood and other fluids when caring for the ill, don’t touch bodies of the deceased ?transmission within the community can be stopped and the outbreak...

What the eye doesn't see

...nned artificial 'moths' to trees in a field with a dead mealworm attached. The 'moths' were triangular pieces of waterproof card with specific patterns printed on them. By varying the colours, size and location of patterns on the moths the team were able to mimic real tree characteristics and identify whi...

Currents could disrupt ocean food chain

...h. "When the Atlantic Conveyer current works, the dead plankton sink to the bottom and are replaced at the surface with nutrient-rich water that encourages further production," Schmittner said. "When the current is disrupted, and the mixing slows, that production also is disrupted." The shutdown of the ...

Stealth Worms May Improve Insect Pest Control

...t 150,000 strong or more, these juveniles exit the dead larva, carrying the bacteria, and look for other hosts to begin the cycle again. These juveniles also can survive dry conditions in soils for long periods of time before they infect more insects. This naturally-occurring relationship between the nem...

Researchers make surprise discovery that some neurons can transmit three signals at once

... neurotransmitters are sent on a one-way ride that dead ends at the membrane of the adjacent cell. Like lock and key, they bind to specific receptors on the surface of the receiving cell, causing its electrical activity to be enhanced or inhibited. The first week after birth marks a critical phase in the...

Oceans more vulnerable to agricultural runoff than previously thought, study finds

...n event and a massive algal bloom." Red tides and dead zones According to the researchers, artificially ...as they multiply. The result is an oxygen-depleted dead zone at the bottom of the sea where few creatures can survive. A massive dead zone appears every sum...

Plant Sacrifices Cells to Fight Invaders

...CD). Plants use PCD to create a protective zone of dead cells around the infection site to prevent the invading pathogen from spreading. But how the plants keep from killing themselves after they turn on the cell-suicide process was a mystery. Now, in the May 20 issue of the journal Cell, Yale University...

U-M team recovers ancient whale in Egyptian desert

...more than an hour. When rescued she was clinically dead with no heartbeat, no respiration, and her body te...lous, unexplained survival in so-called clinically dead humans and our ability to induce ?and reverse ?metabolic quiescence in model organisms could have dr...

Buying Time Through Hibernation on Demand

...more than an hour. When rescued she was clinically dead with no heartbeat, no respiration, and her body te...lous, unexplained survival in so-called clinically dead humans and our ability to induce ?and reverse ?metabolic quiescence in model organisms could have dr...

Advances in the characterisation of the oyster mushroom genes

...cellulose In nature, the oyster mushroom grows on dead trunks of trees where the lignin and cellulose ?the two principal components of wood - are being broken down. Degradation of lignin has been studied over the years by a number of research teams that have characterised the genes involved. But nobody, ...

Dead zone area in Gulf could be increasing, researchers say

...na State University and NASA recently surveyed the dead zone in the northern Gulf of Mexico and their find...n expected this time of year. That could mean the dead zone area could be more severe in 2005 and perhaps cover an even larger area than in previous years,...

Experiments provide proof of how traveling in groups protects insects

...rcent of insects transplanted out of the band were dead because something ate them," he said. "On the other hand, we found no deaths during the same period among the crickets we monitored that stayed with the band." That individuals removed from the group suffered gory deaths was clear from partially che...

Experiments provide proof of how traveling in groups protects insects

...rcent of insects transplanted out of the band were dead because something ate them," he said. "On the other hand, we found no deaths during the same period among the crickets we monitored that stayed with the band." That individuals removed from the group suffered gory deaths was clear from partially che...

Gene therapy converts dead bone graft to new, living tissue

Researchers have created a way to transform the dead bone of a transplanted skeletal graft into living ...of bones in dozens of mice, using both healthy and dead segments, then scanned the surrounding inflammatory tissue for differences in the levels of the acti...

The secret lives of whales

...raig Smith, from the University of Hawaii, studies dead whales after they have sunk to the seafloor. Known... in a park except that in Smith’s case, they tow a dead whale out to the deep sea, place a transponder on it, and drop it to the sea floor. The transponder ...

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