Sensor uses DNA to detect presence of lead, a dangerous contaminant
...ons of code or sequences that determine individual characteristics such as eye color, hair color and height. This represents a new class of simple and environmentally safe sensors and is the first example of a catalytic DNA-based biosensor for metal ions, Lu said. It combines the high metal ion selectivity of catal...New research shows calcium deficiency permits faster lead release from pregnant women's bones
...levels were very low overall, we saw that the same characteristics that predict greater lead at high exposures also predict a greater lead level even at a much lower range. That means there may be virtually no 'natural' background of blood lead for which man-made sources can't be identified." Those characteristics, ...Suspect list shortens for maternal aggression's brain origins
...g alive," Gammie says, noting that highly adaptive characteristics tend to be preserved by evolution. "If we gain a detailed understanding of the neural circuitry underlying maternal aggression in rodents, then it may be possible later on to use that information to help understand how maternal aggression is controll...Discovery may jump-start mine remediation efforts
... that some of the newly discovered microstructural characteristics can be detected in ancient zinc sulfide deposits. This will be important for making the case for the biogenicity of these ores."...New views of tropical thunderstorms and pollution effects on rainfall presented at AGU meeting
... rainfall, and upper level winds may determine the characteristics of thunderstorms. Some of these findings give pr... clouds over tropical land areas sometimes take on characteristics of maritime clouds, which are more efficient producers of warmer rains. They will also discuss how ......to agents that block apoptosis. Intriguingly, the characteristics of paraptosis have been observed in lower organisms that existed prior to the evolution of apoptosis, implying that paraptosis may actually turn out to be the older cell death program. Characterization of this alternative form of programmed cell dea...New fossil study rejects 'Eve theory'
...found that the Mladec and Australian skulls shared characteristics distinctive to the more ancient African and Near Eastern population. But at the same time, the fossils also had distinctive resemblances to more ancient fossils within their regions, many more than could be explained by chance alone. "These feature...Enzyme is crucial for production of plant growth hormone
...nt form of the plant Arabidopsis that had growth characteristics indicative of auxin overproduction. Arabidopsis ,...hing characteristically produced by auxin. "These characteristics resulted in a plant that resembled the yucca, so we named the mutant yucca . Importantly, all these...Biochemist finds flexibility in key HIV protein
...opic techniques to study the structure and binding characteristics of the V3 loop peptide. What she and her collaborators discovered was that no particular structure is adopted by this peptide. "The V3 loop region of this protein appears to be structurally flexible. That's astounded a lot of people," said Tsang...Biologists uncover Darwins missing evidence for divergence of species in a warblers song
...ons with gradually changing behavioral and genetic characteristics encircling the Tibetan Plateau, which is treeless and uninhabitable. This ring is broken by a species boundary at only one place, in central Siberia, where two forms of the songbird coexist without interbreeding. "This creates a paradox in which the...New predatory dog-sized dinosaur unearthed on Madagascar
...ils of Masiakasaurus share a number of specialized characteristics with predatory dinosaurs found in Argentina and India. This finding indicates that a previously unrecognized radiation of small-bodied predatory dinosaurs spread across much of the southern hemisphere toward the end of dinosaur times, paralleling th...New group of microorganisms discovered in the open sea
...her reveals the need for a reclassification of the characteristics of the archaea kingdom....A bizarre new predatory dinosaur unearthed on Madagascar
...ils of Masiakasaurus share a number of specialized characteristics with predatory dinosaurs found in Argentina and India. This finding indicates that a previously unrecognized radiation of small-bodied predatory dinosaurs spread across much of the southern hemisphere toward the end of dinosaur times, paralleling th...How wild horses were tamed by humans is uncovered by biologists from UCLA, Swedish universities
...nd a huge diversity in DNA sequences. Because many characteristics of wild animals must be suppressed so they can live alongside humans, many biologists believe animals were domesticated through selective breeding over many generations to produce such traits as docility, Wayne said. However, we discovered that the t......nd proteins in the cell and generates the many odd characteristics of cancer cells. Cells with the wrong number of chromosomes are called aneuploid cells, and scientists have known for a long time that essentially all solid tumors are aneuploid. This was thought to be the result of the genetic mutations leading to c...UCSF-led study points to pivotal, early event in cancer development
... apparent. The fibroblasts displayed the classic characteristics of normal cell behavior. They maintained an active...red a plateau, in which they displayed the typical characteristics of senescence. The large, flat cells filled the petri dish, their DNA in a semi somnolent state, the...Tallgrass prairies may provide early warning of climate change
...It turns out they're not. One has to factor in the characteristics of the biome as well, the potential responses of t...y can grow. You have to factor in these biological characteristics with rainfall patterns to explain these patterns of variation in production across North America." K...Atmospheric aerosols impact on smog formation being reassessed
...a at Berkeley have been studying the photochemical characteristics of air pollution in southern California as part of an effort funded by the California Air Resources Board (CARB) to improve the reliability of air quality models. The Berkeley Lab team's work has yielded new insights into how variability in the solar...Disconnect between skin cells implicated in common skin cancer
...n knock-out skin cells still displayed many of the characteristics of pre-cancerous cells. These studies suggested that the loss of alpha-catenin resulted in defects in cell cycle control that could not merely be explained by alpha-catenin's role in intercellular adhesion. In search of this additional pathway, Valer......Waterloo, ON Although the zebrafish possesses many characteristics that make it a valuable model for genetic studies ...though zebrafish embryo cell cultures that exhibit characteristics of ES cells have been described, successful contribution of the cells to the germ cell lineage of a ...