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Tag: "resolution" at biology news

Researchers track how spores break out of dormant state

...ctures break down, and it shows with unprecedented resolution how the new bacterium emerges from the disintegrating spore. The new research, led by Lawrence Livermore National Laboratory scientists, appears in the May 28-June 1 early online edition of the Proceedings of the National Academy of Sciences. The res...

CT scan reveals ancient long-necked gliding reptile

... the specimen." The specimens were scanned at a resolution of about one tenth of a millimeter or less. The r...that the reptiles probably lived in trees. The resolution of the CT scan is largely dependent on the size of the object to be scanned. Because the researcher...

Microbes at work cleaning up the environment

...colleague Ian Hutcheon used LLNL’s NanoSIMS (high- resolution secondary ion mass spectrometer) to study the metal-sulfide nanoparticle aggregation in sulfate-reducing bacteria dominated biofilms collected from the Piquette Mine, a flooded system in southwestern Wisconsin. The team found that organic nitrogen...

Catching cancer's spread by watching hemoglobin

... much better than conventional microscopes) with a resolution at the micron scale (at the level of blood cells, which is better than MRI resolution) and does not require any contrast agents or fluorescent markers (unlike most other high-resolution vessel-imaging techniques). Clinically, the imaging techniq...

Brain maps online

...uroscience. BrainMaps.org features the highest resolution whole-brain atlases ever constructed, with over 50... like tiles into composite images. The maps have a resolution of better than half a micrometer per pixel, or 55,000 dots per inch, with virtual slides approaching...

Cure for cancer one step closer

...ent includes an Aperio Scan Scope which takes high resolution images of tissue samples that can then be shared with researchers around the world, and two vapour phase nitrogen storage vessels (-196ºC) and two -80ºC freezers which have the capacity to house in excess of 164,000 tissue and blood samples. The s...

Sandia researchers take new approach to studying how cells respond to pathogens

...ctral fluorescence imaging with multivariate curve resolution (MCR) is used to image the tagged proteins and provide quantitative measurements on multiple proteins simultaneously. The goal is to analyze as many as 10 to 40 proteins and cellular stains at a time in three dimensions. The end results of the ima...

Action video games sharpen vision 20 percent

...ayers showed a substantial increase in the spatial resolution of their vision, meaning they could see figures like those on an eye chart more clearly, even when other symbols crowded in." Bavelier and graduate student Shawn Green tested college students who had played few, if any, video games in the last year...

Horse genome assembled

...nome sequence and expect to deposit an even higher resolution assembly in public databases. Comparing the horse and human genomes will help medical researchers learn more about the human genome and will also serve as a tool for veterinary researchers to better understand the diseases that affect equines. A publ...

Columbia scientists determine 3-dimensional structure of cell's 'fuel gauge'

... that this development in understanding the atomic resolution structure of the protein provides researchers a powerful new tool for the design of useful therapeutics. ...

Newborn brains grow vision and movement regions first

...dy is the first to systematically obtain very high resolution magnetic resonance imaging (MRI) scans on a large group of newborns. The results appear in the Feb. 7 issue of the Journal of Neuroscience. Funding was provided by the National Institute of Mental Health and the UNC School of Medicine. Another key ...

Scripps research study reveals structural dynamics of single prion molecules

...). Fluorescence correlation spectroscopy is a high resolution technique that measures time fluctuations in fluorescent emissions from tagged proteins, which provided information about changes in shape of Sup35 taking place on the nanosecond timescale (billionths of seconds). A third technology, single molec...

40,000-year-old skull shows both modern human and Neandertal traits

...f previously divergent gene pools. "The ultimate resolution of these issues must await considerations of larger samples of European early modern humans and chronologically intervening specimens. But this fossil is a major addition to the growing body of fossil, genetic and archaeological evidence indicating ...

Scientists reveal structure of gateways to gene control

.... "For the first time, we are seeing in very high resolution on a genome-wide scale how nucleosomes control the expression of an organism's genes," said B. Franklin Pugh, professor of biochemistry and molecular biology and the study's lead investigator. The map pinpoints the locations of certain key gene-cont...

Chromosomal microarray analysis proves accurate

... of the total group of patients studied. This high resolution genome analysis promise to transform the practice of clinical genetics," said Beaudet. More important, the technique found abnormalities in 5.2 percent of patients for whom more traditional techniques had not identified the genetic cause. "We...

ASU researchers test antibacterial effects of healing clays

... Courssou. He was asking to have someone take high resolution scanning electron micrographs of the clays," Williams explains. "I confess that we all ignored him initially." According to the Brunet de Courssou Web site, the family has been operating health clinics on the Ivory Coast and in New Guinea. For a d...

T-ray breakthrough could make detecting disease far easier

...f small objects such as biological cells with high resolution are virtually impossible. But in their work the researchers found that although ordinary metal wire would not guide T-rays very well, if a series of tiny grooves was cut into the wire, it would do so much more effectively. If such a corrugated me...

Backache beaten by good vibrations?

...ommonly used by physiotherapists to accelerate the resolution of the inflammatory process in a multitude of soft-tissue injuries. The study aims to address the unanswered question of whether TU is effective in reducing pain and disability in patients with lower back pain caused by sciatica. "Obviously this w...

Nobel Laureate finds 'elegant' explanation for DNA transcribing enzyme's high fidelity

...eds of crystals to achieve higher data quality and resolution than ever before. “In the course of the work, we saw something that had never been noticed before?additional protein density beneath the matching nucleotide,?Kornberg said. The team traced that protein density back to a portion of the polymerase ...

Uncovering DNA's 'sweet' secret

...molecule's structure had been lacking. Egli's high resolution structure is now able to provide answers to some of the lingering questions about why DNA is made the way it is. While the homo-DNA structure shows a number of similarities with DNA, it is much more stable than DNA. However, it has a more haphazard...

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