College students recognized & rewarded for their innovative work
...ause their invention is so much more sensitive and precise than previous types of tests, it could be used to detect chemical signs of Alzheimer's disease, Mad Cow Disease, or types of cancer far earlier than conventional tests. Their advisor on this project is Dr. Chad Mirkin, who receives a $5,000 prize. O...New biosensor rapidly detects deadly foodborne pathogen
... While Bhunia said there's no known precise number of cells it takes to infect someone, most food safety experts suggest from 100 to 1,000 cells can cause illness. Cooking would kill many of the L. monocytogenes cells that can grow at refrigeration temperature, but many ready...Brain circuit may permit scientists to eavesdrop on memory formation
...xperiments, Remondes perfected a technique to make precise electrical lesions of the TA projection in the brains of rats. In the first set of experiments, he created the lesions in animals and then tested their ability to learn to navigate a tank full of opaque water to find a submerged platform. When the re...Biologists ID molecular block for social 'cheaters'
... at Baylor College of Medicine. "We don't know the precise biomolecular pathway for this second function, but we know that dimA codes for a transcription factor that binds with DNA in the nucleus to control gene expression. Because transcription factors often control more than one gene, we believe the absenc...Gene-altered mouse is model for rare autoimmune syndrome
...ad no prior knowledge that we would produce such a precise model of Sjgren's syndrome." Indeed, he said, the mice lacking the gene had all the characteristics of the disease, including reduced tear and saliva secretion and infiltration of lymphocytes into their tear and salivary glands. The animals ...Study in Royal Society journal on how relationship status influences sex ratios
... of democratic recoupling is that it stresses the precise role of topological geometry in Sn group properties. These define the degenerate NMR spin system "dynamical structure" and their "uniform" dual tensorial set completeness via TRI-invariance and its combinatorics.Contact: Dr Francis Temme, Department ...International human genome sequencing consortium describes finished human genome sequence
... researchers around the world to conduct even more precise studies of our genetic instruction book and how it influences health and disease." One of the central goals of the effort to analyze the human genome is the identification of all genes, which are generally defined as stretches of DNA that code for ...Research to explore revolutionary gene sequencing: Threading the molecular needle
...e resulting data could thus be translated into the precise sequence of the DNA molecule. To thread the DNA through the cyclodextrin molecular ring, the cyclodextrin molecules are first assembled around a long, straight molecule, like beads on a wire. The "wire" molecule is then attached to a su...Actin muscles in on DNA transcription
...but that has yet to be proved. "Learning about the precise components and sequence of events in DNA transcription is important because the process is essential to all cellular activity, whether in normal healthy tissues or in diseases like cancer," de Lanerolle said. "The knowledge we gain will one day open ...Researchers grow sperm stem cells in laboratory cultures
...ed in developing the culture medium containing the precise combination of cellular growth factors needed for the cells to reproduce themselves outside the body. Known as spermatogonial stem cells, the cells are incapable of fertilizing egg cells but give rise to cells that develop into sperm. In 1994, thi...Research team discovers possible genetic mechanism behind congenital heart defects
...is replaced, or removed, allow researchers to have precise control over a specific gene in order to study its function. "This new protein may provide new diagnostic tools and insights into how to treat cardiovascular problems," said Dr. Janet Rossant, the study's co-principal investigator and a senior invest...Scientists uncover secret to sharp teeth
...identifies a molecular mechanism that controls the precise patterning of enamel formation on incisor teeth. Mouse incisors are covered with enamel on the side closest to the lip while the side facing the tongue remains enamel-free. This irregular distribution of enamel helps to keep the cutting edges of th...UO study is first to link histamine receptors to heat stress
... from cholinergic nerves in the skin. However, the precise mechanism of action, and even the neurotransmitter itself, is unknown. Earlier this year, Wong's previous work in this area won the top national award for student research from the American College of Sports Medicine. The prize is given annuall...Joslin and Stanford researchers find key clues to muscle regeneration
... high frequency, to new muscle cells. They found a precise cell type -- the precursor to new muscle growth. In fact, a single cell from this subset could alone generate a sizable colony of new muscle cells. "Identifying this precursor of new muscle cells gives us new research tools for future studies, includ...JCI table of contents, November 15 2004
...d Bcl3 in the development of atrophy, however the precise mechanisms involved have remained unknown. In the November 15 issue of the Journal of Clinical Investigation, Susan Kandarian and R. Bridge Hunter from Boston University examined mice deficient in the proteins p105/p50 (encoded by the gene Nfkb1) or ...Rare immunodeficiency provides new insight into immune system function
...ls that encodes a protein called SAP. Although the precise dysregulation of T cells that underlies XLP is unclear, research using genetically engineered mice that lack SAP demonstrated that T helper cells in these animals exhibit reduced cytokine production. Dr. Pamela L. Schwartzberg from the National Human...Study in Royal Society journal on possible genetic factors in social responsiblity
...r as contrasted to supercomputers. It gives a very precise recipe of how to shape the wing using a new form of Whitcomb's area rule that dictated coke bottle fuselages for fighters to help them break the sound barrier. This new method will help airplanes achieve higher speed and greater range according to sp...Laser scalpel opens way for nerve regeneration studies in worms
...ey used had a custom-built apparatus to permit the precise focus of laser on biological samples, but the laser itself is available commercially. Thus, the technique can be readily adopted by other laboratories, she said. And with its proven ability to cut individual nerves, Jin said she could envision the la...MSI reveals invention for detection and precise quantification of molecules
...stitute revealed means for sensitive detection and precise quantification of arbitrarily designated molecules...ration of biological systems, you need to know the precise numbers of each component part found in individual cells. Tadpoles and methods based on them should ...Ocean colour satellites guide research ship through South Pacific's watery desert
...ll-rich zone around the Marquises Archipelago, the precise reason for its fertility still uncertain. And just off the west coast of Chile is an upwelling of cold, nutrient-high water that supports extremely dense chlorophyll concentrations and one of the most important fisheries on Eart...