Biosensor expected to improve food safety
...g changes in transmitted laserlight. These changes reveal both the presence and concentration of specificpathogens in a sample at extremely minute levels. "If pathogens are found with the biosensor, then food processors canmake decisions more quickly about applying treatments, such as antiseptics,"E...Breast cancer relapse rates appear higher in women who have cancer-causing gene, Yale study finds
... Yale University School ofMedicine. "Our findings reveal that if these women elect breast conservingtherapy, radiation and lumpectomy, there is possibly a greater risk of developinga second tumor in the conservatively treated breast." The study also found that breast cancer patients with o...Scientists to discuss role of water vapor in Earth's climate system
... water vapor there and because watervapor patterns reveal aspects of the circulation of air in the stratosphere. Papers presented at the October conference will be published in a forthcomingissue of the Journal of Geophysical Research. Conference organizers have taken advantage of the presence of so many l...UT Southwestern researchers develop technique to determine protein communication, function
...onal parts of the proteinalthough it still doesn't reveal the physical mechanism that triggers the energyconnection. Ranganathan cautioned, however, that the new statistical technique mustbe tested on many different proteins to determine whether it can be usedpractically to build synthetic proteins ...... Geneticmarking techniques, on the other hand, can reveal important details such aswhere in Mexico a small breeding population of Wilson's warblers from the SanFrancisco Bay Area spends its winter each year. "If you can link wintering and breeding populations, you can tie-in land-usepatterns contributing t...Counting elephants by monitoring sounds
...ifference between small and large groups, andoften reveal what is going on. "Elephants are very noisy during mating, for instance, and the femaleusually makes a repetitious series of calls when she is mounted," Payne notes. "This will provide useful information in a monitoring program becauserepro......ure and logic of the cell's operating system could reveal new design principles for operating autonomous unmanned devices. In recently published reports, the Stanford researchers have determined that a "master regulator" protein prevents DNA replication from happening at the wrong time in the cell cycle. By......strict barriers erected between groups and another reveal a widely intermingling population? According to the scientists, the disagreement could be a matter of timing. Since changes in mitochondrial DNA only have to spread through the maternal side of the genome, it appears to "evolve" more rapidly. Like th...Lemur 'Juliet' dies in Madagascar
...er officials said a necropsy of the animal did not reveal an apparent cause of death and that a male of her species captured at the same time remains healthy. The researchers plan further analyses of tissue samples to attempt to determine the cause of death. She was a member of the species of acrobatic lem...Key progress by Weizmann scientists in the race to unravel ribosomal structure
... have stubbornly "resisted" scientific attempts to reveal their detailed functionaldesign. In order to examine microscopic structures scientists expose crystals of the material in questionto high intensity x-ray beams - a method known as x-ray crystallography. However, the ribosome, anotoriously unstable g...'Frozen pictures' allow far-reaching glimpse into the cells protein factory
... have stubbornly "resisted" scientific attempts to reveal their detailed functional design. In order to examine microscopic structures scientists expose crystals of the material in question to high intensity x-ray beams - a method known as x-ray crystallography. The beam diffracted from crystals of natur...Zebrafish's powerful heart gene could lead to transplant therapy
...eported other findings in thezebrafish embryo that reveal basic mechanisms of development and could lead toan understanding of some birth defects. Heart buds nudge toward one another...to form a beating heart In one study, researchers identified a set of genes needed to prompt the twobuds of heart cells t...3-D structure of human transcription factor proteins revealed
...A. "The electron microscopy studies presented here reveal a model for the structure of TFIID complexed to both TFIIA and TFIIB in the absence of DNA," the authors write in their paper. "Antibody mapping of the TATA Binding Protein (TBP) within TFIID strongly suggests the binding position of DNA to be at th...Fossil mayflies can be used to 'weigh' ancient atmospheres
...how measurements of a fossilized insect's body can reveal information about the air in which it once flew: -- A mayfly's main flight muscle fills most of the pterothorax, the body's two wing-bearing segments. -- The force that the muscle delivers to the wings is registered in the length of the pterothorax (...Brookhaven scientists create new ways to tag and track molecules
...n Light Source, the locations of these labels help reveal the structure of the protein at the molecular level. Alternatively, scientists can trace the location of the labeled moleucles within viruses or cells using an electron microscope, such as Brookhaven's Scanning Transmission Electron Microscope.......acific Grove, California, realised the seals could reveal conditions in remote ocean areas where existing da...ar's round-the-world Volvo Ocean Race. This should reveal how robust they are with the goal of fitting them to more stable ships in the future....University of Pittsburgh researchers uncover mitochondrial defect involved with inherited cancers
... heart attack. The discovery of the gene may also reveal novel "genomic imprinting" mechanisms to explain why only fathers transmit this tumor, said Dr. Baysal. ...Exposures to second-hand smoke lower than believed, ORNL study finds
...subjects also submitted to saliva tests that would reveal cotinine, a constituent of tobacco smoke. Smokers were excluded from the study. Cities used for the study were Baltimore; Boise, Idaho; Buffalo; Columbus, Ohio; Daytona Beach, Fla.; Fresno, Calif.; Grand Rapids, Mich.; Indianapolis; Knoxville; New Or...'Biomedical switch' regulates how cells stick together and communicates
...March issue of Nature Cell Biology . The findings reveal a new parameter regulating cell attachment, namely, the physical properties of the immediate surroundings. Cell adhesion, whereby cells bind to adjacent cells and to the extracellular matrix between them, is critical to the formation of tissues and ......enefit from early prevention. Biomarkers may also reveal information about the neurochemistry of alcoholism that can lead to the design of drugs to treat the disease. Gary S. Wand, professor of medicine and psychiatry at Johns Hopkins University School of Medicine, believes Froehlich's study makes at lea...