numerous 2 4

Tag: "numerous" at biology news

Biodegradable napkin -- featuring sensitive nanofibers -- may quickly detect biohazards

... would contain nanofibers containing antibodies to numerous biohazards and chemicals and would signal by changing color or through another effect when the antibodies attached to their targets. Users would simply wipe the napkin across a surface; if a biohazard were detected, the surface could be disinfected a...

Research suggests beta agonists may alter the immune system

...e published in an upcoming print issue. In fact, numerous clinical studies have reported that asthma symptoms tend to worsen over time in patients on continuous beta-agonist therapy. Although the reasons for this deterioration of asthma control are not clear, the Food and Drug Administration now recommends ...

Stanford discovery may help predict when toxoplasma can be deadly

... of humanity. Its unusual ability to overcome the numerous challenges of infecting and reproducing inside such a wide range of creatures has long intrigued scientists, and now researchers at the Stanford University School of Medicine have identified two of the proteins critical to its ability to thrive. ...

Extraordinary life found around deep-sea gas seeps

...or its nutrition. Corals and, at two of the sites, numerous sponges, were also observed. 'We've collected samples of the animals living around the seeps for formal identification, but the distance to previously studied cold seeps implies that there are several species new to science among these new collect...

Therapeutic role found for carbon monoxide

...conditions was first proposed in 1998. Since then, numerous studies have shown that when administered at low, non-toxic concentrations prior to such procedures as organ transplant surgery or balloon angioplasty, CO provides potent protective effects against organ rejection or blockage of the carotid arteries....

Malaria vaccine prompts victims' immune system to eliminate parasite from mosquitoes

...d on Pfs25. These consisted of chemically linking numerous Pfs25 molecules to each other and to other proteins: Pseudomonas aeruginosa exotoxin A, a protein from a species of bacteria that infects people with weakened immune systems, and ovalbumin, a protein found in egg whites. All of the conjugates produc...

Disappearing nest egg: Researcher studying declining numbers of macaws

...he area in October and hopes to install collars on numerous macaws and use satellite technology to track their movements and learn more about them. "We have some macaws here in captivity on campus at the Schubot Exotic Bird Center, but we have much to learn about them in their native habitat," he says. "W...

Most widely used organic pesticide requires help to kill

...make Bt's toxic proteins have been engineered into numerous crop plants. Transgenic crops using the bacterium'...mals, including humans, depend on the interplay of numerous species of bacteria that, beginning at birth, routinely colonize the stomach and intestines. The cat...

Coffee makes us more likely to say 'yes'

...at the University of Queensland says, "Given the numerous situations in which people are exposed to persuasive arguments, these results could have many applied implications. Consider how caffeine containing products (such as, coffee, tea, cola or energy drinks) might affect how persuaded a person is when,...

New strategy developed to combat West Nile Virus

...ting birds and as a result, each bird is bitten by numerous mosquitoes. A single infected bird can thus infect many more mosquitoes than if conditions were wet and the mosquitoes were more broadly dispersed, Shaman said. "This phenomenon, called 'drought-induced amplification,' is a key to transmission," he ...

Robots manipulating animal behaviour

...imals, even if it is not mobile, could be used for numerous tasks, such as herding or milking. Our project demonstrates that the fields of biology and IT can work together more closely in future." Though the project has officially ended, some of the partners are continuing to refine the behaviour models they...

New understanding of parasite cell structures may provide treatments for serious tropical diseases

...ully calls these cellular lipids, are important in numerous biological functions, including disease transmissi...ted for "fat," these cell components actually have numerous functions. They are hydrocarbon-containing organic compounds that living cells must have to maintain...

New research finds surveys of larval-stage organisms effective for measuring marine biodiversity

...species of mantis shrimp. The comparisons revealed numerous new varieties of shrimp that are completely unknown in their adult forms. "Our results show that biodiversity in mantis shrimp in these regions is estimated to be at least 50 to 150 percent higher than presently believed," said Barber. "Given that ...

Jellyfish dominate fish in over-harvested Namibian waters

...hange over time--for example, jellyfish are now so numerous in the region that they significantly interfere wi...hors point out that jellyfish biomass has risen in numerous locations worldwide, possibly as a consequence of fishing. Climactic changes could also contribute t...

Arctic expedition will investigate alien-like glacier

...acier where they will study the spring and acquire numerous water, mineral and rock samples. ...

'Pinball protons' created by ultraviolet rays and other causes can lead to DNA damage

...rrors. This pair has 10 protons, meaning there are numerous targets for processes that knock the protons off. The lesions are breaks in the hydrogen bonds, of which there are two in the G-C base pair. (The Adenine-Thymine pair has three hydrogen bonds.) "Our real goal is to examine all possible lesions in D...

Genetic snooze button governs timing of spring flowers

...fill the niches of nature. Spring blooming confers numerous advantages, not the least of which is leafing out and flowering before the competition. But how do the plants know when to flower? "If you carve out that niche, you need to get established in the fall, but you need to make darn sure you don't flo...

New roles for growth factors: Enticing nerve cells to muscles

... started to doubt its existence. After screening numerous candidates, the Pfaff team found not only that FGF is expressed in target muscle, but that FGF "sensors," known as FGF receptors, are expressed in MMCm motor neurons. Furthermore, MMCm axons could not "hear" their muscle partner's call and failed to ...

Flick of whiskers helps tease out brain's 'shadow' signaling system

... the slower chemical signaling network of the more numerous astrocytes has become widely appreciated by scientists. Wang's work is the latest in a series of papers by Nedergaard and colleagues scuttling the notion that astrocytes are merely support cells for neurons. More than a decade ago Nedergaard discove...

Colombian frog believed extinct found alive

...ystem. The disappearance of amphibians could cause numerous consequences, including an increase in illnesses such as malaria due to the disappearance of amphibians that feed on mosquitoes carrying the disease. An extinction crisis among amphibians indicates drastic environmental changes caused by human impact...

1 2 3 4 5 6 7 8 9 10