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Tag: "creates" at biology news

Scientists discover global pattern of big fish diversity in open oceans

...change in the world's oceans." To understand what creates these patterns of diversity, the scientists collaborated with oceanographers to examine different open ocean "habitat" features. Sea surface temperature and the level of oxygen in the water were the most important factors in determining where the big...

Random gene expression may drive HIV into hiding

...on of HIV's entire genome, including itself, which creates a positive-feedback loop: If a little bit of Tat is around, then the HIV genome is transcribed efficiently, which makes more Tat, and so on. If a cell has no Tat, then the HIV genome may remain untranscribed, and, unable to replicate, so the virus he...

Map of life on Earth could be used on Mars

...of the three types of prokaryotic organisms, Blank creates a genetic flow chart, which can be interpreted to trace the appearance of environmental adaptations across billions of years of evolution. Genes are inherited from parents, but can transfer from one organism to another without reproducing by a proce...

Climatologists discover deep-sea secret

...ern hemisphere has entered a cooling period, which creates a decrease in the amount of deep water transported to the Atlantic Ocean from the south. The opposite effect also took place: when the climate cooled in the North Atlantic, the southern hemisphere entered a warmer period, causing water to be transpor...

Amazon symposium to address large-scale conservation

...e export of Amazon products to world markets as it creates new corridors for explosive frontier expansion. These mounting threats to the Amazon require large-scale, integrated approaches to conservation that cross traditional disciplinary boundaries. Large-scale conservation of the greater Amazon Basin regio...

Researchers pioneer new gene therapy technique using natural repair process

...2R gene. Once bound to the mutant gene, the enzyme creates a break in the DNA sequence, initiating the recombination process. In SCID, as well as many other diseases, both copies of the disease gene are mutated so there is no correct version naturally available. To overcome this, researchers also supplied t...

Pair of cancer genes found to drive both cell migration and division

...e, it first doubles its genetic material, and then creates a "furrow" down the middle, cutting the cell in half. The research team noticed that the two halves of a normal dividing cell looked and acted like two cells moving away from each other. "Essentially, the two halves are like migrating cells - PIP3 l...

Chemical Engineer Kao Explores Antibiotic Synthesis With DNA Chips

...exist only represents half of Kao's work; she also creates her own mutants. Creating the mutants on her own o... will likely increase antibiotic yields. Shuffling creates combinations of all mutants that originally generated increased yields--similar to genetic recombina...

Cellular Defects in Premature Aging Disease are Reversible

... A is defective in HGPS cells because the mutation creates an aberrant splice site in the lamin A gene; the aberrant splicing, or joining the separate parts of the gene together, results in synthesis of a truncated lamin protein. Without lamin A holding them together, the nuclei of progeria cells become wrin...

Scientists discover that three overlapping signals in embryo help get the backbone right

...P) antagonists, these factors block a process that creates belly structures and clear the way for back develo...f the back and belly, another group of antagonists creates the head and tail, while a third sets up left and right. "It's been interesting that what one think...

Integration of Agilent's MS technology, Proteome Systems' software to help scientists in proteomics research

... with our cutting-edge, automated glycomics system creates a powerful integrated solution that will streamline the study of glycoproteins." The co-marketed product is expected to be available this summer. Agilent and Proteome Systems will also collaborate on the development of applications and seminars as p...

Duke engineers develop new 3-D cardiac imaging probe

...ng probe. Inserted inside the esophagus, the probe creates a picture of the whole heart in the time it takes for current ultrasound technology to image a single heart cross section. The new probe has considerable potential not only for evaluating the condition of the heart, but also for use in guiding thera...

Bioelectronic ‘signatures?hold key to DNA mutations

...ally recognizing subtle mutations in the DNA. This creates enormous potential for applications such as the diagnosis and treatment of genetic diseases, detection of infectious agents and reliable forensic analysis. Wang, who recently was recruited to the Biodesign Institute and serves a joint appointment as...

Brain-mapping technique aids understanding of sleep, wakefulness

... to cholinergic cells," Dr. Yanagisawa said. "This creates a self-reinforcing loop, a positive feedback system that's very important to consolidating wakefulness." Dr. Yanagisawa said the trigger that causes the sleep "seesaw" to tip from one side to the other and maintain a proper balance between time spen...

Nanoparticles offer new hope for detection and treatment

...metal used to provide contrast in MRI images. This creates a high density of contrast agent, and when the particles bind to a specific area, that site glows brightly in MRI scans. In this study, MRI scans picked up tumors that were only a couple of millimeters (about one twenty-fifth of an inch) wide. Smal...

Dead zone area in Gulf could be increasing, researchers say

...lt water could results in increased hypoxia, which creates the dead zone." Hypoxia is a term for extremely low levels of oxygen concentrations in water. Hypoxia can result in fish kills and can severely impact other forms of marine life where it is present. The dead zone area covers about 6,000 square mile...

New online portal merges vast data on Gulf of Maine ecosystem

...l to ecosystem-based management. The Dynamic Atlas creates the opportunity for credible gains in our knowledge about how the patterns of life in the Gulf are unfolding." For example, the Atlas can be used for simple analyses, such as calculating the rate at which fish species are being first identified in t...

Drug-resistant bacteria on poultry products differ by brand

...t classes of antibiotics in food-animal production creates a significant public health concern," said the study's lead author Lance Price, a doctoral candidate and fellow at the Bloomberg School of Public Health's Center for a Livable Future. "Companies that use antibiotics foster the development of drug-res...

New Insights Into HIV Immunity Suggest Alternative Approach to Vaccines

...s adaptive B cell immunity, a slower response that creates powerful, pathogen-specific antibodies and provides lasting immunity. The body's normal response to infection is to produce adaptive antibodies that target only the invading virus or other pathogens. Many widely used non-HIV vaccines "train" adaptive...

How an AIDS-Related Cancer Unleashes Inflammation

...ytokines resulting from kaposin B's binding to MK2 creates inflammation that in turn activates the regulatory protein p38. p38, in turn, further increases activation of MK2. "We still don't know the mechanism by which kaposin B activates MK2," said Ganem. "Nor do we understand how this activation leads to a...

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