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Tag: "fundamental" at biology news

Worms know bad food when they smell it

...response that's instantaneous, involuntary, and so fundamental to basic biology that it occurs in a broad range o...ue of the journal Nature. One of C. elegans' fundamental behaviors is movement toward food based on its sense of smell. In the laboratory, this often means w...

USC researchers track down the stem cells that create feathers

...tterns of the feather as a model to understand the fundamental principles of organ formation and regeneration," Chuong notes. "Nature is the best teacher for tissue engineering. What we decipher from our animal models can then be applied to help human stem cells and adult human organs to regenerate-and regenerat...

Bacteria that cause tooth decay able to survive without important biochemical pathway

... much more widely to learning things that are more fundamental about how living organisms insert proteins and how membrane function is determined by proteins. "We now know that things are not always as straightforward as they seem," she said. ...

How the neuron sprouts its branches

...anch points. "This finding is important because a fundamental problem that neurons must solve is how to sort app... dendritic branch point positioned to perform this fundamental neuronal function." Finally, the researchers disrupted the orientation, or "polarity," of the Golg...

Biologists discover new pathway into plant cells

...ut disrupting its integrity. This is a significant fundamental advance in our understanding of plant biology." The research was done with a pathogenic fungus that causes tan spot of wheat, a costly plant disease that is found around the world, and in some places can cause crop losses ranging up to 50 percent. T...

Carnegie Mellon U. transforms DNA microarrays with standard Internet communications tool

...d to weed out such introduced gene activation from fundamental gene activation pathways that form the hallmark of processes like cancer or immunity. To prove the effectiveness of this new method, Bar-Joseph studied the human cell division cycle. Considered one of the most important biological systems, the cell ...

Genetic key to growth of new arteries is identified

...e problem," comments Sarkar. "This paper is a very fundamental examination of the mechanisms involved in gene regulation in the growth of arteries." The next research step, according to Sarkar, will be to carry out the same experiments in animal models of the various conditions known to cause vascular disease: c...

Antibacterial coatings cut infection rates

...nd materials), Sameer Al-Bataineh, has developed a fundamental understanding of the antibacterial coatings and ho...This is an excellent example of where we can apply fundamental knowledge gained in a PhD towards commercial applications that we believe will have health benefits ...

Predators keep the world green, ecologists find

...clear: the presence of a viable carnivore guild is fundamental to maintaining biodiversity," the authors wrote. ... the object of our studies simply dispersed. "The fundamental premise of the whole project was our ability to study predator-free space, and that condition was no...

New evidence questions the simple link between prion proteins and madcow disease

...effrey. His belief in this need to reappraise the fundamental understanding of prion diseases is enhanced by one more observation published in this same paper. The team pre-digested a mixture containing disease specific PrP with standard stomach contents, and then injected the resulting mixture into the gut. No...

Patterns in genome organization may partially explain how microbial cells work

...ction can't be ignored if we want to gain a better fundamental understanding of how a microbial cell works." ...

Of mice, men, trees and the global carbon cycle

...key to plant metabolic rates, the work uncovered a fundamental difference between plants and animals in how their metabolism varies with size. The larger an animal, the slower its metabolism on a per-weight basis. Thus, although an elephant burns many more calories per hour than a mouse, the mouse has a much hig...

'Accelerated evolution' converts RNA enzyme to DNA enzyme in vitro

... molecules. These findings could help answer some fundamental questions concerning the basic structure of life and how it evolved over time." As Francis Crick, the Nobel laureate who, along with James Watson uncovered the double helix structure of DNA, articulated in 1970, all known organisms operate according...

Pleasing plant shapes explained by new computer model

...ell division and showing how concentrations of the fundamental plant growth hormone auxin appear at regularly-spaced intervals. This creates the striking spiral patterns of seeds observed in sunflowers, daisies, and many other plants. Other patterns, such as branching at right angles observed in lilac branching...

Ernst Mayr's theory illustrated in genetic epidemiology studies

...versed. Such alterations, Templeton said, are the fundamental basis of genetic revolution. A school of biologists who goes back to the English biologist R. A. Fisher believes that genes alone inherently are major or minor in terms of effects on traits. A school following the 1920s biologist Sewal Wright beli...

The closest look ever at the cell's machines

...EMBL has been very successful, she says, producing fundamental new insights in how molecules are organised and contributing to Cellzome's success in complex and pathway analysis. ...

Nano machine switches between biological and silicon worlds

...ng the order of the four DNA-bases, the absolutely fundamental step for genetic research. This is almost a 'bonus' application, a happy side effect of the actuator's operation. ...

Diverse tropical forests defy metabolic ecology models

...The predictions of metabolic ecology were wrong in fundamental ways, and no one had noticed before because few datasets spanned the range from saplings to large trees. Most impressive was the consistency in the big discrepancies between observation and prediction, even in very different forests," articulates coa...

Virginia Tech scientists develop process for creating biocompatible fibers

...pinning, the use of self-organizing molecules, and fundamental research to understand the behavior of such molecu...said. "Matt (McKee) did a terrific job of bringing fundamental learning to a potentially new family of fabrics and membranes." Long said that the future opportuni...

Born with a love of speech

...the melodic aspects of speech. They also contain a fundamental frequency ?the core pitch of a voice, such as baritone or soprano, that helps us clue in to the identity of a voice. These non-speech stimuli were developed by Drs. Sonya Bird and Guy Carden in the Department of Linguistics and Dr. Janet Werker in th...

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