Tag: "separating" at biology news

Using computers and DNA to count bacteria

...team used a technique known as DNA re-association, separating the two strands of all the bacterial DNA in a soil sample, blending them, and measuring the time it takes for the correct halves to properly reconnect. As often happens at Los Alamos, where thousands of scientists from every imaginable discipline are...

Secrets of the whale riders

...th's tectonic plates formed the Isthmus of Panama, separating the Pacific and Atlantic. That set up warm equatorial currents that kept most blubber-laden right whales from crossing the equator because they could not tolerate the warm waters. One southern right whale crossed the equator 1 million to 2 millio...

Two Sandia microChemLab technologies soon to be checking for toxins in the nation's water supplies

...The California microChemLab identifies proteins by separating samples into distinct bands in seconds to minutes. Separations occur in channels as narrow as a human hair coiled onto a glass chip about the size of a nickel. Curtis Mowry, principal investigator for the New Mexico project, says his team is seeking ...

UCLA researchers identify how antibody blocks prostate cancer growth in animal models

...ells. Reiter and his team fragmented the antibody, separating the part that binds to PSCA and testing it alone in the animal models to see how it affected the prostate cancer cells. Even without engaging an immune response, the antibody blocked the growth of the prostate cancer cells. "The fragments we created ...

Sleeping sickness parasite shows how cells divide their insides

...When thinking about how cells divide, doubling and separating DNA in chromosomes is often the focus. Equally important is the way a cell prepares its internal organelles for distribution. Warren studies the Golgi complex, a membrane compartment in the cytoplasm that delivers newly-made proteins to different mem...

Discovering the first steps in transcription-coupled repair

...own as RNA polymerase II (RNAPII). RNAPII works by separating the two strands of the DNA helix opening what's called a "transcription bubble" -- and moving along the strand to be transcribed like an engine along a cog railway, copying the genetic information in the gene to create a length of messenger RNA as it...

Olfactory input dominates reproductive behavior in mice

... which is capable of traveling across the synapses separating neurons but does so in a direction opposite to that in which nerve impulses ordinarily travel. By injecting fluorescently marked virus into a mating center in the mouse hypothalamus -- a collection of neurons that produce luteinizing hormone-releasin...

Researchers uncover new genes that control longevity

...ds of individual yeast cells under the microscope, separating "daughter cells" from "mother cells," and segregating strains according to longevity. In time, the researchers gradually sorted out some gene mutations that altered the life span of the cells. As a result, "ten new genes were identified that are conn...

ORNL-led study shows forests thrive with increased CO2 levels

...f conversion of light energy to organic matter. In separating the overall response into leaf area and light-use efficiency, the analysis meshes well with broader scale analyses based on satellite imagery, Norby said. Norby notes that this analysis will be especially valuable as a benchmark to evaluate predictio...

Component in soy products causes reproductive problems in laboratory mice

...k genistein inhibits the oocytes or egg cells from separating apart," said Wendy Jefferson, Ph.D. of NIEHS and lead researcher on the paper. "Since there are many egg cells in the same follicle instead of just one, the resources from the surrounding cells are spread too thin and they can't get the support they...

Hot-spring bacteria flip a metabolic switch

...ed. "Instead, they solve the problem by temporally separating the tasks." Lead author Steunou and her collaborators tracked the activity of genes involved in photosynthesis and N2 fixation over a 24-hour period. They found that photosynthetic genes shut down shortly after nightfall, and N2-fixation genes switch...

Active inbreeding avoidance in wild capuchin monkeys

...irth group at adolescence, hindering inbreeding by separating opposite-sexed adult kin. In species in which the same male breeds in a group for a sufficiently long period that he risks mating with his daughters, females are typically the dispersing sex. Capuchins are highly unusual in that long male-breeding te...

New DNA 'fingerprinting' technique separates hemp from marijuana

...w technique is an improvement on previous means of separating the two types of Cannabis, said author George Weib...," said Weiblen. "It has implications not just for separating hemp from marijuana in countries where hemp cultivation is permitted, but in establishing origins of...

Building a hand-held lab-on-a-chip to simplify blood tests

...t into and flow into the space where they do, thus separating the blood cell types," he said. The cell separator puts space between molecules so that they flow easily into the counter. In large blood-count machines, cells are calculated by a technology called a Coulter counter. Tai's lab-on-a-chip device is ...

Revealing the secrets of WRN

...ivision. "This gives us a better chance of clearly separating defects in development from aging." "We wanted to study the protein itself because it is unique," says Jeff Perry of the Scripps Research Institute's Department of Molecular Biology and Skaggs Institute for Chemical Biology, formerly of Berkeley Lab...

Dover 'intelligent design' decision to be topic of national forum

...s violates the First Amendment's proscriptions for separating church and state issues, he said. As the nation's first trial of the ID theory, the case became a magnet for media attention. Scientists and other scholars hailed Jones' ruling as a landmark decision in their struggle against anti-evolution groups th...

Urine collected and purified separately

... for collecting and purifying urine separately. By separating urine, phosphate and nitrogen are more effectively...be better protected against rot. A requirement for separating urine is an appropriate toilet (on which men also sit to urinate) or a dry urinal, both of which are...

Protein tied to usher syndrome may be hearing's 'Missing Link'

...t identifies individual proteins in a substance by separating them from one another by mass and testing how they react to certain antibodies, demonstrated that the antibody that recognizes protocadherin-15 in mice also binds to the TLA. The team also analyzed the amino acid sequences of protocadherin-15 and di...

Oceanic invasions across Darwin's impassable barrier

...rmed an 'impassable barrier', 5000km of deep ocean separating the eastern and central Pacific, according to a report by Smithsonian scientists in the Proceedings of the Royal Society B. By sequencing mitochondrial DNA from 20 morphospecies of fairly sedentary shore fish on both sides of the divide, the study co...

Molecular DNA switch found to be the same for all life

...replication initiators took place a long time ago, separating them from other members of the AAA+ superfamily of proteins while maintaining an identity among themselves that reflects the importance of the replication process. Through the millions of years, evolution has added bells and whistles around this hig...

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(Date:10/15/2014)... spreading rapidly and to an unexpected extent. The outbreak ... and the virus shows a new disease dynamic in ... this reason, the German National Academy of Sciences Leopoldina, ... and the Union of the German Academies of Sciences ... epidemic today. , In the statement the academies call ...
(Date:10/15/2014)... NXT-ID, Inc. (NASDAQ: NXTD and NXTDW) ... growing mobile commerce market releases photos and video of the recent ... October 13 th . Gino Pereira , ... angel investor Mr. Chad A. Verdi rang the bell.  ... his investors and employees "for their work and dedication in bringing ...
(Date:10/15/2014)... 15, 2014   Neurotechnology , a provider ... availability of the VeriLook Surveillance 3.0 software ... real-time biometric face identification using live video streams ... The new version not only identifies faces in ... objects while they are moving through the video ...
Breaking Biology News(10 mins):Academies call for consequences from the Ebola virus epidemic 2Academies call for consequences from the Ebola virus epidemic 3Academies call for consequences from the Ebola virus epidemic 4Academies call for consequences from the Ebola virus epidemic 5Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 2Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 3VeriLook Surveillance 3.0 SDK Identifies Faces and Moving Objects, Differentiates Pedestrians from Other Moving Objects in Video Surveillance Systems 2VeriLook Surveillance 3.0 SDK Identifies Faces and Moving Objects, Differentiates Pedestrians from Other Moving Objects in Video Surveillance Systems 3
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