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Tag: "bulk" at biology news

Tiny particles could solve billion-dollar problem

...ove efficiency by several orders of magnitude over bulk palladium catalysts." TCE, which is commonly used...tiveness of four varieties of palladium catalysts: bulk palladium, palladium powder on an aluminum oxide support base, pure palladium nanoparticles and a hy...

15-year hunt finds cause of pseudothalidomide syndrome

...attachment points along the entire chromosome, the bulk of the connection is at the centromere, a chromosome's functional hub. The chromosomes' connection allows the cell to move them together, ensuring that the two copies are lined up together at the center of the dividing cell. Once lined up, tiny mole...

Circulating stem cells play small role in lung repair

... are looking at ways to do that. We found that the bulk of stem cell contribution to the repair process belongs to those stem cells normally found in the lungs rather than to circulating stem cells," said Zander, who is professor and vice chair of pathology and laboratory medicine. Stem cells are produce...

Candida albicans Genome Fully Annotated

... are looking at ways to do that. We found that the bulk of stem cell contribution to the repair process belongs to those stem cells normally found in the lungs rather than to circulating stem cells," said Zander, who is professor and vice chair of pathology and laboratory medicine. Stem cells are produce...

Researchers grow stem cells from human skin

...ake Forest University Baptist Medical Center. "The bulk of our bodies is made up of fat, muscle and bone." The promise of stem cells lies in their ability to develop into specialized types of cells and to replicate themselves. Scientists hope to harness the potential of stem cells and use them to replace...

Microreactor efficiently regenerates cofactors for biocatalysis

...ssential cofactors," Kenis said. "The absence of a bulk phase in our microreactor prevents the unwanted reverse reaction from occurring, while permitting continuous operation." Using their microreactor, the researchers performed a model biocatalytic process by converting an achiral substrate (pyruvate) i...

US Army plans to bulk-buy anthrax

...They ask companies to tender for the production of bulk quantities of a non-virulent strain of anthrax, and for equipment to produce significant volumes of other biological agents. Issued earlier this year, the contracts were discovered by Edward Hammond, director of the Sunshine Project, a US-German orga...

Researchers find ways to turn manure into power

...hat much of it in the commercial feedlots." Large bulk samples from the compost pile that came from the paved pens will be tested further in a small-scale combustion testing project in College Station. These test results will focus on using pulverized manure samples as reburn fuel in a secondary combust...

Tiny roundworm's telomeres help scientists to tease apart different types of aging

...teria mainly because it is simple, easy to grow in bulk populations, and is quite convenient for genetic analysis. When these scientists began their work almost nothing was known about worm telomeres. "We had to start at the very beginning. But now we know that C. elegans is the perfect model organism to...

Method slashes quantum dot costs by 80 percent

...: viscosity, surface free energy and solubility of bulk cadmium selenide powder. ...

The right drug at the right time

...: viscosity, surface free energy and solubility of bulk cadmium selenide powder. ...

UF study first to quantify validity of DNA I.D. tool using marine snails

...entifying different species is greatest, where the bulk of the diversity of life is, including large numbers of undescribed forms." In those cases where the data is incomplete because the collection of known species is small, scientists currently rely on threshold values to identify the likelihood of a p...

Researchers: Treated wood poses long-term threat

...ental Science & Technology, Research ASAP. The bulk of the funding for the research came from the Florida Center for Solid and Hazardous Waste Management, a statewide research center hosted by the UF College of Engineering. "What's important for people to realize is that arsenic is relatively mobile...

Cancer support cells may evolve, fuel tumor growth, study shows

...ancer cell, such as epithelial cells that form the bulk of many tumors including breast cancer, would be on the accumulated mutations that have allowed the cell to survive and grow unchecked. "But over the last several years, it has become increasingly clear that cancer involves complex interactions among...

New, unique microscope for nanotech

...ientists could use it to get information about the bulk structure of a material and to measure the arrangement of atoms at the surface. The tip of the atomic force microscope can also be used as a probe to nudge cells, or place atoms or molecules into new, microscopic patterns. The project includes 24 UC...

Clawed frog helps Fanconi anemia research make leaps

...are at all different stages of the cell cycle. The bulk of the cells are not rapidly dividing, and it's only when cells are dividing that the Fanconi proteins are usually at their highest expression and activity." In Xenopus eggs, however, Fanconi proteins are stockpiled in preparation for the rapid divi...

Powerful new tool for studying brain development

...pulation. If you kill only the cells making up the bulk of the tumor, the disease will likely return, because you haven't eliminated the source of the tumor. Further, our comparative analysis of malignant and normal developing tissues provides a new method of mapping stem cells of solid tumors. The contr...

Faults in newly discovered breast stem cells may lead to tumours

...re slowly. So while chemotherapy can eliminate the bulk of cancer cells, the tumour factory itself ?a breast cancer stem cell ?may survive months or years later. In the context of international breast cancer research, the discovery of the breast stem cell is quite profound and will most likely form the ...

Attacking cancer's sweet tooth is effective strategy against tumors

...age since most cells require oxygen to produce the bulk of their energy-storing adenosine triphosphate (ATP). In the 1920s, Otto Warburg proposed that some cancer cells evolved the ability to switch over to an ancient, oxygen-free route, the glycolytic pathway. What is more, they continue to use this path...

Mosquito spray increases toxicity of pyrethroids in creek, study finds

... perimeter of homes, is likely responsible for the bulk of the pyrethroids found in the sediment of urban streams, the researchers said. Based in part upon these prior findings, the California Department of Pesticide Regulation (DPR) announced earlier this month that it will begin re-evaluating some 600...

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