Tag: "precise" at biology news

NSF awards support for DNA analysis instrumentation lab at Williams College

...known about the general nature of DNA, many of its precise mechanisms remain a mystery. Until recently, technological constraints severely limited researchers' ability to analyze and understand the complex molecule. With contemporary innovations in technology making more advanced investigation possible, DNA ...

Sonography valuable in determining surgery in peroneal nerve injuries in the knee

... delayed diagnosis," said Dr. Gruber. The need for precise knowledge regarding the length and exact localization of a damaged nerve segment is essential for surgical intervention. In all nine patients of the study with peroneal nerve palsy, the peroneal nerve injuries and their degree were clearly identifie...

UF scientists say stem cells may trigger bone cancer

...tive ways to treat childhood sarcomas." Still, the precise role stem-like cells play in the development of cancer is not entirely clear, said Eric C. Holland, M.D., Ph.D., an associate professor in the departments of neurosurgery, neurology, and cancer biology and genetics at Memorial Sloan-Kettering Cancer ...

MRI best tool for studying intricate nerves in dogs

...nd thin structures of the nervous system, a really precise imaging modality had to be used, and only MRI could give such results on nervous tissue." The researchers note that in addition to identifying these nerves, CN nuclei were also visible in the study. Anatomic descriptions of normal canine CN nuclei c...

Normal chromosome ends elicit a limited DNA damage response

...ends, and detection of telomeres as damage at this precise time are necessary to trigger the re-formation of a protective telomeric structure," says Karlseder, an assistant professor in the Regulatory Biology Laboratory. In contrast to damaged strands of DNA, they hypothesize, the repair process never gets f...

The World Economic Forum announces new class of technology pioneers for 2006: Ossur selected

...apabilities. Founded upon an interdiciplinary and precise fusion of electronics, mechanics, and human physiology, this new range of products includes Ossur's new products: the RHEO KNEE TM and the POWER KNEE TM , and will soon address the orthopedic market, as well. The goals are to remove the physical li...

Max Planck researchers win part of Descartes Research Prize 2005

...lse periods are quite stable -- they are like very precise clocks in outer space. Observing fluctuations in the pulse rates allows us to follow pulsar movements very closely. We can also learn about the properties of super-dense materials, the behaviour of plasma in strong magnetic fields, and a number of ot...

Leibniz Prize winners 2006

...thods developed at Mezger's institute are the most precise in the world and have application in numerous fundamental and current topics concerning the development of Earth and other planetary bodies. Klaus Mezger studied mineralogy and geology at the University of Wrzburg and at the State University of New Y...

New discovery may improve treatment of neurodegenerative diseases and type 2 diabetes

...ied. Using this method one is able to identify the precise zones of each protein that force these proteins to... Parkinson's and type 2 diabetes. It allows a more precise identification of the targets, meaning that in theory they can be attacked more effectively". The me...

OHSU discovery sheds light into how stem cells become brain cells

...s, but not in the nervous system. To determine the precise role of Brg-1, Sherman, in collaboration with Dr. Steven Matsumoto from the Integrative Biosciences Department at the OHSU School of Dentistry, bred mice lacking the gene in the nervous system. This resulted in the development of embryos with smaller...

Researchers make long DNA 'wires' for future medical and electronic devices

...ncoiling long strands of DNA and forming them into precise patterns. Ultimately, these DNA strands could act as wires in biologically based electronics and medical devices, said L. James Lee, professor of chemical and biomolecular engineering at Ohio State University. In the early online edition of the Proce...

Sea slug mixes chemical defense before firing at predators

... them simultaneously into its mantle cavity at the precise time when they are needed," explained Derby. "This mechanism insures the secretion's potency against attacking predators to enable sea slugs to escape." Aplysia employs a variety of mechanisms to defend against predators. Its secretion stimulates fee...

Novel enzyme offers new look at gene regulation

...profound effects on nearby genes. Depending on the precise location and how many methyl groups are added, their presence can either switch affected genes on or off. The first enzyme to remove methyl groups from histones, or histone demethylase, was identified last year. This was a breakthrough in the study o...

Scientists narrow the time limits for the human and chimpanzee split

...gence. "While this research does not pinpoint the precise time of the split, it tells us that proportional differences on branches in family trees should be considered when proposing new times. For example, we now know that a 10-to-12-million-year human-chimp split would infer a divergence of Old World mon...

Light-sensing cells in retina develop before vision

...onsuming to isolate and study the cells, requiring precise injection of a tracing dye into the brains of animals to label and identify the ipRGCs. That has changed as the result of a technical advance developed by Daniel C. Tu and Donald Zhang, both Medical Scientist Training Program students in Van Gelder'...

A key that opens cells to the deadly malaria parasite

... "Until now we have not had a close-up view of the precise surface where the two proteins interact," explains Amit Sharma, the corresponding author of the paper. "That surface is absolutely crucial in permitting the parasite to enter the cell. If we can determine its features in atomic detail, we may be able...

Male elephants woo females with precise chemistry

...first example, in mammals, of the use of this very precise signaling and ratio of enantiomers in signaling." An enantiomer is one of a pair of chemical compounds whose molecular structures are mirror images of each other. Frontalin, a pheromone discharged during musth by male Asian elephants from a temporal ...

FDA approves first medical device using Rutgers biomaterial

... improved handling characteristics that facilitate precise placement during the surgical repair and leave less implant material following the resorption of the coating. Hernias occur when musculature fails and one part of the body protrudes through the resulting gap or opening into another part of the body....

Rockefeller researchers discover a biological clock within a clock

...cytoplasm, and how things are being done in such a precise way," Meyer says. So he turned to a technique inve... have a clock within a clock." He notes that this precise timer shows how carefully orchestrated interactions between proteins really are. Young and Meyer, wh...

Molecule does more than slice and dice RNA

...o carefully measures and snips strands of RNA into precise increments. When Dicer cleaves large strands of RN...ws how the enzyme recognizes RNA and snips it into precise increments. "The fact that it makes these specific sized RNAs is important to the process," Doudna s...

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(Date:6/18/2013)... chemical modification of DNA and this modification can ... sequence. Until now, scientists believed that this epigenetic ... Today, a team of researchers from the University ... Louis-Jeantet Professor at the Faculty of Medicine, reveals ... that DNA methylation may play both a passive ...
(Date:6/17/2013)... MA Women in the U.S. exposed to high levels ... likely to have a child with autism as women who ... study from Harvard School of Public Health (HSPH). It is ... and air pollution across the U.S. , "Our findings raise ... the women in our study lived in areas where risk ...
(Date:6/17/2013)... LA JOLLA, CA June 17, 2013 An ... Institute (TSRI), the Howard Hughes Medical Institute and Albert ... a highly promising new anti-tuberculosis compound that attacks the ... findings represent an effort to help solve one of ... of TB and its dangerous drug-resistant strains," said Peter ...
Breaking Biology News(10 mins):The secret of DNA methylation 2Exposure to high pollution levels during pregnancy may increase risk of having child with autism 2New compound excels at killing persistent and drug-resistant tuberculosis 2New compound excels at killing persistent and drug-resistant tuberculosis 3New compound excels at killing persistent and drug-resistant tuberculosis 4
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