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Tag: "matter" at biology news

Next good dinosaur news likely to come from small packages

... Ostrom's work has spanned from examining organic matter in meteorites to reconstructing who eats who in the food web from the tropics to the arctic. The trail is laid by stubbornly durable molecules. She uses mass spectrometry, an analytical technique that determines what molecules are present. Molecules...

Cell therapy slows progression of an inherited neurological disease; Improves motor skills in mice

...the lack of an enzyme and causes loss of the white matter or myelin protecting nerve fibers. Without myelin, nerves cannot conduct impulses to and from other areas of the body, resulting in symptoms including convulsions, seizures, personality changes, spasticity, progressive dementia, motor disturbances pr...

Screening blood for West Nile virus

...asonable price. (In an ideal world, cost would not matter when it comes to protecting human life and health, but in reality there is limited money available for public health measures. Studies such as this one are therefore essential to help politicians decide how to spend their budget wisely.) The analysi...

Tiny polyps gorge themselves to survive coral bleaching

...y from stored fats within its body, or eat organic matter and plankton in the surrounding water," she said. But what has puzzled Grottoli and other researchers is why in some bleaching events, some corals quickly died off while others close by were able to recover. To answer that, she returned to Hawaii I...

MIT chemist discovers secret behind nature's medicines

...nd it appears almost anti-climactic. It's simply a matter of the size of one of its parts. "If an enzyme is a gun that fires to cause a reaction, then we wanted to know the mechanism that pulls the trigger," Drennan said. "In chemistry, we often have to look at 'molecules in, molecules out.' With halogenat...

Vaccine provides 100 percent protection against avian flu virus in animal study

...e biosphere, and in large part drive the cycles of matter and energy in the sea," said DeLong. Microbes near the ocean surface, for example, had more genes devoted to taking in iron, a major element necessary for growth in that zone. Genomes from organisms below the ocean's deepest and darkest layers displ...

Wyoming cloud seeding experiment begins this month

...e biosphere, and in large part drive the cycles of matter and energy in the sea," said DeLong. Microbes near the ocean surface, for example, had more genes devoted to taking in iron, a major element necessary for growth in that zone. Genomes from organisms below the ocean's deepest and darkest layers displ...

Sequencing our seas

...e biosphere, and in large part drive the cycles of matter and energy in the sea," said DeLong. Microbes near the ocean surface, for example, had more genes devoted to taking in iron, a major element necessary for growth in that zone. Genomes from organisms below the ocean's deepest and darkest layers displ...

Cortex matures faster in youth with highest IQ

...verer solely by virtue of having more or less gray matter at any one age," explained Rapoport. "Rather, IQ is related to the dynamics of cortex maturation."The observed differences are consistent with findings from functional magnetic resonance imaging, showing that levels of activation in prefrontal areas ...

Free access to a digital library for developing countries

...nutrition information in developing countries is a matter of course for us. We already participate enthusiastically in projects such as AGORA and HINARI. I would like to congratulate everyone involved in setting up OARE, which will un-doubtedly be yet another worthwhile effort," said Derk Haank, CEO of Spr...

Portable cocaine sensor developed at UC Santa Barbara

...he color change. "Our sensor can detect cocaine no matter what they have cut it with: powdered sugar, flour, or the coffee that is sometimes used to mask the smell from dogs." At this point the new sensor detects cocaine in the blood or saliva to a degree of a few micromolars. This is equivalent to the con...

Predators keep the world green, ecologists find

...defenses or by predators," wrote the authors. "The matter is trivially simple in principle, but in practice the challenge of experimentally creating predator-free environments in which herbivores can increase without constraint has proven almost insurmountable." However, the researchers realized that the h...

Have a taste for fat? Yes! A sensor in the mouth promotes preference for fatty foods

..., but the existence of an actual sensor remained a matter of debate. In a paper appearing in the November 1 issue of the Journal of Clinical Investigation, Phillipe Besnard and colleagues identify the first candidate for lipid detection in the oral cavity. The authors combine genetic, morphological, be...

New technique puts brain-imaging research on its head

...or to animal models to learn even more about brain matter deformation. They have done experiments on humans... that we hope will take the guesswork out of brain matter deformation analysis," Bayly said. "We can now quantify brain deformation from these very low, mild...

A resetting signal keeps circadian rhythm on track in Drosophila fruit flies

...se differences between them. It turned out that no matter the manipulation, the morning cells set the pace of the entire system, so that the rhythm always stayed on track." The study showed that the morning clock resets the evening clock every day, without changing the intrinsic speed of the evening clock....

How E. coli bacterium generates simplicity from complexity

...rces and electron acceptors. To their surprise, no matter what carbon source it ingests or electron acceptor used, E. coli exhibits only six distinct functional states. "This study gives a systems biology view of how a phenotype, or a 'network state' advantageous to a microorganism is comprised of a tiny s...

Carnegie Mellon scientists create PNA molecule with potential to build nanodevices

No matter how healthy a life one leads, no person has managed to live much longer than a century. Even though the advances of the modern age may have extended the average human life span, it is clear there are genetic limits to longevity. One prominent theory ...

Navigating the brain for sense of direction as paradigm for higher cognitive functions

No matter how healthy a life one leads, no person has managed to live much longer than a century. Even though the advances of the modern age may have extended the average human life span, it is clear there are genetic limits to longevity. One prominent theory ...

Gene Expression in the Aging Brain

No matter how healthy a life one leads, no person has managed to live much longer than a century. Even though the advances of the modern age may have extended the average human life span, it is clear there are genetic limits to longevity. One prominent theory ...

The shape of things to come: Morphology database going global

...eir material and presenting their research. It's a matter of having a system that works well with lots of interesting images. That will go a long way to change people's attitudes." Because journals often do not publish all the images that illustrate an article, researchers now must go to a museum or deposi...

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