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Tag: "are" at biology news

Study: Soap And Water Work Best In Ridding Hands Of Disease Viruses

...ap and water was most effective since some viruses are hardy and relatively resistant to disinfection. A...erican Journal of Infection Control. Other authors are Drs. William A. Rutala and David J. Weber, professors of medicine and epidemiology at the UNC school...

New comparative toxicogenomics database

... that is more effective inchildren than those that are currently available,?Kriwacki said.Elaine Tuomanen...oniae do not work in young children. Adultvaccines are composed of pieces of carbohydrates naturally appearing onthe surface of these bacteria. When used i...

Taking Aim With Nanoparticle PEBBLEs

...nt, but a dreaded disease: cancer. And the pebbles are not the kind you hurl from slingshots; they're nan... a virulent form of brain cancer in rats. PEBBLEs are polymer spheres, typically 20 to 200 nanometers in diameter—about the size of a virus. The spheres c...

ASU researchers finds novel chemistry at work to provide parrot's vibrant red colors

Parrots, long a favorite pet animal, are attractive to owners because of their vibrant colo...ecules we found in our work." Details of the work are in a paper, "Distribution of unique red feather pigments in parrots," by McGraw and Mary Nogare, a p...

Elephants imitate truck noises, other animals

Elephants learn to imitate sounds that are not typical of their species, the first known exam...-like calls of his long-time zoo mates. The chirps are made by Asian elephants but not by African elephants. Calimero often mimicked the chirps but rarely ...

Genetically modified natural killer immune cells attack, kill leukemia cells

...ther blood cancers. Results of the St. Jude study are published in the current online issue of Blood. T...eveloped in this study is in leukemia patients who are treated with hematopoietic (blood cell-forming) cell transplantation. In this case, NK cells will be...

UCSD researchers maintain stem cells without contaminated animal feeder layers

...media enriched by a human protein called activin A are capable of maintaining human embryonic stem cells ...rently, stem cell lines derived from human embryos are grown and nourished in petri dish material called feeder layers that are made with animal connective...

Transport System Smuggles Medicines Into Brain

Parrots, long a favorite pet animal, are attractive to owners because of their vibrant colo...ecules we found in our work." Details of the work are in a paper, "Distribution of unique red feather pigments in parrots," by McGraw and Mary Nogare, a p...

Scientists develop new color-coded test for protein folding

...rome c. "We chose gold nanoparticles because they are simple to prepare, easy to control and cost effective," the authors wrote. "To the best of our knowledge, however, gold nanoparticles have not been previously used to investigate the folding and unfolding of proteins." The initial batch of gold-cyto...

Placenta Is A Rich Source Of Blood Stem Cells

...ese cells, which appear very early in development, are able to generate more blood stem cells and can giv...n adult. Unlike other sites where blood stem cells are found during embryonic development, such as the liver, the stem cells in the placenta can increase i...

Probing The Promise And Perils Of Nanoparticles

...aterials. Scientists at the University of Michigan are addressing those concerns by investigating how certain kinds of nanoparticles damage cell membranes—enough to cause cell death in some cases—and how the damage can be prevented. "If you're inventing these sorts of materials, you need to be concerned...

Open microfluidic and nanofluidic systems

...uter chip. An essential prerequisite for such labs are appropriate microcompartments for the confinement ...in Santa Barbara have shown that such open systems are possible in general but only if the geometry of the surface channels is carefully matched with their...

Researchers discover molecule that causes secondary stroke

...st to determine which hemorrhagic stroke survivors are at greater risk." Several spinal fluid components...researchers point out that although their findings are encouraging in terms of developing a diagnostic test and treatment, the number of patients in their ...

Study shows nanoshells ideal as chemical nanosensors

...ts and otherscientists to determine what materials are made of. An enormouslimitation in the use of Raman...applications."Not only did we find that nanoshells are extremely effective atmagnifying the Raman signature of molecules, we found each individualnanoshell...

Gene Vaccine Protects Mice Against Development Of Her2/neu Breast Cancer

...spreading.?Up to one-third of human breast cancers are associated withover-expression of the HER2/neu cel...ery system for proteins from the cancer cells that are to betargeted by the animal’s immune system.The basis for this new vaccine is an RNA virus called VE...

Elephants imitate sounds as a form of social communication

Elephants learn to imitate sounds that are not typical of their species, the first known exam...-like calls of his long-time zoo mates. The chirps are made by Asian elephants but not by African elephants. Calimero often mimicked the chirps but rarely ...

Highly adaptable genome in gut bacterium key to intestinal health

...y School of Medicine in St. Louis. Their findings are reported in the March 25, 2005 issue of the journa...," Gordon says. "These carbohydrate-rich particles are the bacteria's dining room tables. By generating a series of carbohydrate-binding proteins on its ou...

Researchers find missing genes of ancient organism

...he "missing" genes for tRNA in an ancient parasite are made up by splicing together sequences in distant ...c kingdom in the Archaea containing organisms that are primitive, parasitic and extremophile, or notable for living in the most extreme environments. Surp...

Scientists identify genetic pathways essential to RNA interference

...lowering plant Arabidopsis thaliana, both of which are common model organisms for biological research. Th...ial. Along with Kim, the study's co-first authors are Harrison Gabel and Ravi Kamath, MD, PhD, of the MGH Department of Molecular Biology. Additional auth...

A comprehensive response to HIV could prevent 10 million AIDS deaths in Africa by 2020

...spreading.?Up to one-third of human breast cancers are associated withover-expression of the HER2/neu cel...ery system for proteins from the cancer cells that are to betargeted by the animal’s immune system.The basis for this new vaccine is an RNA virus called VE...

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