Tag: "connecting" at biology news

Microbial forensics: An overview (news briefing and symposium)

...sk is daunting, she added, noting the challenge of connecting a bacterium found at a crime scene and definitively linking it to a suspect. "There are so many different kinds of bacteria in the microbial world, where there are billions of them. This diversity is much greater than in just the hundreds commonly ...

New study sheds light on the responses to diuretics

...esults showed that the sodium channel expressed in connecting tubule and collecting duct, ENaC, increased its abundance in response to chronic infusion of either diuretic, consistent with previous research studies showing increased sodium absorption in these segments. In addition, furosemide induced an increase...

The jaws stiffness found to dictate speech production

...fness: Measures of jaw stiffness were obtained by connecting a computer-controlled robotic device to an acrylic and metal dental appliance that was attached to the mandibular teeth. The appliance was custom molded for each subject and glued to the buccal surface of the teeth using a dental adhesive. The coupl...

UCI study offers blueprint for pinpointing sources of beach water pollution

... to seal the leaks and are currently investigating connecting pipes from private businesses and homes for further leakage. Their work has already decreased bacteria levels along the shoreline by more than 50 percent, and beach closures declined from 31 in 2001 to 15 in 2002. This approach provides a new method ...

RIT collaborates with IBM on genomic research

... support the advancement of university projects by connecting top researchers in academia with IBM Research personnel, along with representatives from product-development and solution-provider communities. IBM awards approximately 40 SUR grants per year worldwide. Recipients include Oxford, University of Queens...

Nanoparticles could aid biohazard detection, computer industry

...ews to chip manufacturers, who face the problem of connecting increasingly tiny computer chips with macro-sized components, the group has taken their research a step further. The scientists also have learned how to use these nanoparticles as a bridge to connect the chips with organic molecules. Biosensors base...

Researchers elucidate machinery of major anti-cancer target

...s of Health. FTase works as a cellular seamstress, connecting a fatty farnesyl molecule to newly built protein enzymes when they emerge from the cell's production machinery. This chemical stitchery adds a molecular "flag" to a new enzyme that signals the cell to send it off on its metabolic mission in the cell...

Mosquito genome sequence--Published in the journal Science

... segments of DNA from all over the genome and then connecting the segments by matching their overlaps. The assembled genome sequence is 278 megabases long. (Each megabase equals one million nucleotides, the basic units of DNA.) Using software programs to identify likely genes in the sequence, Holt's team made a...

Study: Genome-wide scanning unravels complex birth defect

...EDNRB. Both RET and EDNRB proteins are involved in connecting nerves to the digestive tract during embryo development....

Fragmentation may be linked to local amphibian extinctions

...pulations in highly fragmented forests may require connecting their habitat patches. "The results of this study suggest that juvenile amphibians might preferentially use corridors of natural vegetation," she says....

After massive experiment, results favor wildlife corridors

...clearings on each site. They also logged corridors connecting each central clearing to one of the peripheral cle...Our study suggests that these corridors do help in connecting populations, and theoretically they should help sustain networks of populations existing in increasi...

Gene may bias amygdala response to frightful faces

...re binding of the neurotransmitter to receptors on connecting neurons. In the fMRI paradigm, developed by Hariri and colleagues, 28 subjects performed a facial emotion-matching task on a computer screen while their brain activity was scanned. They matched one of two faces that appeared at the bottom of the s...

Molecular 'stop signs' may hold secret of nerve regeneration

...the inhibitors to prevent injured nerve cells from connecting to other nerves or muscles. By keeping the chemicals from interacting with the inhibitor, the researchers were able to stimulate damaged nerve cells to regenerate in laboratory dishes. Their report is in the June 11 issue of the Proceedings of the N...

Hopkins scientists reveal how sound becomes electric

...ch) and intensity (volume)," Fuchs says. "Nerves connecting to other cells have to collect the chemical messengers for awhile before they will send an electrical signal to the brain; those nerves have to reach a threshold level of stimulation. And once the signal is sent, the nerve is quiet again," adds Fuchs...

Looking for clues about how proteins talk to each other

...s." "Each airline company has a network of flights connecting different cities," he says. "But when a city serves as a hub for one company, the neighboring cities are mostly served by this company. Also, the hub is served mainly by this company and not by another big company. So the two big companies rarely 'ta...

Researchers to compare prenatal treatments for serious twin complication

... tube, or fetoscope, to seal off the blood vessels connecting the two fetuses. The goal of the laser treatment is to separate the communicating circulation between the twins which causes the syndrome. Without prenatal treatment for TTTS, both twins usually die. Even with treatment, survival of both twins is no...

Researchers link gene with kidney stones, bone loss in patients who absorb too much calcium

...normalities to the resulting disorders, but simply connecting specific genetic abnormalities with AH was an important step. She said it has long been known that kidney-stone formation runs in families, but identifying a genetic connection was elusive. "We started about 10 years ago looking for a genetic cause,"...

Study identifies new protein on neurons that may be useful as survival/growth factor

...ture neurons caused these primitive cells with few connecting branches to mature into neurons with widespread branches suitable for making connections to other neurons. Secondly, in the presence of CD40L, neurons with CD40 on their surface were much more likely to resist injury than neurons not given CD40. W...

Brain's cleaning crew may aid learning, memory formation

...led neurotransmitters carry messages in the spaces connecting one nerve cell, or neuron, to the next, allowing the brain to function properly. Scientists believe that the strengthening of these connections by the neurotransmitter glutamate a process called long-term potentiation is one mechanism responsible f...

A new route to branching morphogenesis

... causes rounded clusters of murine inner medullary connecting duct epithelial cells to generate tubules in culture. Unlike HGF-stimulated morphogenesis, which is mediated by the Ras signaling pathway, these responses depend on activation of protein kinase C-a. Nickel et al. find that the two pathways can operat...

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