Ferns diversified in shadow of flowering plants
...es in ferns and angiosperms and found family trees charting the relationships among ferns and angiosperms, which revealed their evolutionary history. The team used insights from the genetic comparisons to reevaluate the fossil record, and to assign fern and angiosperm fossils to currently existing lineages. "...New study finds evolutionary diversification in Hawaiian spiders
...sed the DNA of the spiders to create a family tree charting the evolutionary history of the Tetragnatha species in Hawaii. The spiders can be grouped into four distinct ecological types, or ecomorphs: the "green" type, which dwells on leaves; "maroon," which lives mostly on moss; "small brown," which live...NSF awards $31.9 million in grants to study biocomplexity in the environment
...dynamic influences has given us the means to begin charting a comprehensive view of life, matter and the environment at all scales of time and place." A systems approach is the cornerstone of biocomplexity studies, Colwell believes. Scientists and engineers must work in teams across diverse fields that go we......nt in robotic devices to improve performance. By charting the relationship between neural signals and motor movements, Nicolelis et al. demonstrate how BMIs can work with healthy neural areas to reconfigure the brain's motor command neuronal elements and help restore intentional movement. These findings, th...Mathematical modeling predicts cellular communication
...en and the flow of cellular messages on track. But charting the protein interactions, signaling pathways, and other elements that regulate these networks is no small feat. There are many players that interact in complicated ways. Furthermore, these efforts have been hampered by the lack of quantitative data--...Bacterial relationships revealed
...tory of organisms by establishing a foundation for charting the evolutionary events, such as lateral gene transfer, that shape the structure and substance of genomes. Bacteria promise to reveal a wealth of information about genomic evolution, because so many clusters of related bacterial genomes have been se...Bahamas serve as test case for marine protected areas
...C Davis pioneer inthe field, will spend five years charting the natural and humanimpacts as the Bahamian government expands its existing system ofmarine protected areas (MPAs) to create one of the world's firstmarine reserve networks. Typically, in a marine protected area, noresources may be removed, includin...Oral contraceptives increase C-reactive protein, an infIammatory biomarker
...on-OC users were trained in basal body temperature charting and ovulation testing for verification of follicular and luteal phases. Serum progesterone concentrations were used to confirm ovulation. Four fasting blood samples and 24-hour urine (two mid-follicular and two mid-luteal) were collected from each ...Geneticists trace 'sticky' rice's origins
...anan says. He found both a Laotian Buddhist legend charting the existence of glutinous rice to about 1,100 years ago and Chinese folklore that indicated the existence of glutinous rice more than 2,000 years ago. "Since no one really knows where glutinous rice came from, we wanted to find its origin using mole...Introducing the biology of the future
...eome, understanding the functions of molecules and charting their interactions, and Anne-Claude Gavin, Giulio Superti-Furga and their colleagues have now made a major step towards this goal. Although researchers have known that proteins frequently carry out their tasks in large complexes, technical limitation...Rutgers cell biologist sees new HIV treatment potential in protein discovery
....J. Rutgers cell biologist Bonnie L. Firestein is charting a new course in the search for an effective AIDS treatment. Firestein and her colleagues have identified a protein known as HP68 that is critical to the formation of the AIDS virus' outer shell or capsid. Treatments that target this protein could s......istant galaxy. The FEL is an ideal instrument for charting the interactions of light and matter in many of the still unexplored regions of the electromagnetic spectrum. Unlike most conventional lasers, the FEL can be tuned over a broad range of the spectrum ranging from the infrared to the ultraviolet. In ad...New pathway to understanding circadian rhythms
...e Massachusetts General Hospital Cancer Center. In charting the circadian rhythms of the mutant flies, Sehgal and her colleagues found that those rhythms were, indeed, disrupted. "So, to make sure that this arrhythmicity was due to a lack of the Nf1 gene, as opposed to some other factor, we did experiments to...Genomics project aims to create a "virtual plant"
...workshop, which was sponsored by the NSF, aimed at charting a scientific course to take advantage of the complete gene sequence once it becomes available. Writing in Plant Physiology , the authors state, "The ultimate goal of The 2010 Project is to broaden the scope to consider how genomics could be applied ...Renowned author, scientist and professor, John L. Casti, returns to IIASA
...thematical modeling to three research objectives: charting topography of Internet usage, modeling risks associated with the world's natural catastrophes, and developing mathematical and conceptual techniques to understand the evolution of complex adaptive systems. Casti will team with three of the 14 curren......n knowing the structure of proteins andenzymes. By charting their shape, scientists can determine how the moleculeswork. But these molecules may also change shape when performing importantfunctions, like carrying oxygen in blood hemoglobin. In photosynthesis, thereare many energy producing conversion steps fr......bloodoxygenation. The technology maps the brain by charting the relative increase inoxygenated hemoglobin while researchers conduct various experiments on theirsubjects that may, for example, task memory or test senses.) Back to the top...