Tag: "clues" at biology news

Impurities in biominerals reveal key to understanding climate change, will lead to novel materials

...tons produced by these organisms contain important clues to Earth history. By observing the microscopic growth of calcium carbonate crystals using the atomic force microscope, researchers observed for the first time the fundamental physical processes that help govern climate change and ocean chemistry thro...

Hopkins researcher finds bone disease and growth defect may have common genetic basis

...fferent and hereditary bone disorders has revealed clues about the common genetic switches controlling normal bone development, according to new research guided by Johns Hopkins Children's Center endocrinologist Michael Levine, M.D. In the November issue of the Journal of Bone and Mineral Research, Levine'...

Fossil teeth of extinct North American rhinos reveal an aquatic lifestyle similar to modern hippos

...zed oxygen isotopes in fossil Teleoceras teeth for clues to the animals' habits. Oxygen occurs in nature as three different isotopes. The two heavy isotopes are very rare (together they make up less than 0.5 percent of all oxygen atoms), but their greater mass has interesting consequences. Evaporation, for...

Scientists reveal details of brain cell communication: implications for learning & memory

...Sabatini and Svoboda have done, provides important clues for understanding how our brains outperform the most sophisticated computers and enable us to grasp the human experience. ...

2000 FALL MEETING: updated press conferences, press registration, and other information

...m. Sunday, December 17 11:00 AM Chicxulub: New clues to an ancient disaster The Chicxulub impact crater on the coast of present day Yucatan is associated with the extinction of dinosaurs some 65 million years ago. Now, new results are available from undersea sampling of the crater, and plans will be d...

DNA "Motors" are key to virus replication

...ackaging," he said. The project may provide clues as to how DNA is packaged in similar viruses - including Herpes virus, which causes human ailments such as Herpes simplex, chicken pox and shingles - and suggest ways for developing drugs that prevent illnesses caused by viral pathogens. "This...

Study reveals structure of DNA packaging motor in virus

...ree to infect other cells. The study may provide clues as to how DNA is packaged in similar viruses - including Herpesvirus, which causes human ailments such as Herpes simplex, chicken pox and shingles - and suggest ways for developing drugs that prevent illnesses caused by viral pathogens. The study a...

Scientists track phosphate to better understand global warming

...he phosphate cycles of the past may yield valuable clues about the future. To learn how phosphorus cycled through oceans millions of years ago, Paytan boards research vessels with Monterey Bay Aquarium Research Institute scientists to collect samples of phosphate preserved in marine sediments. She also obt...

First-ever complete plant genome sequence is announced

...lant counterpart of the laboratory mouse, offering clues to how all sorts of living organisms behave genetically, with potentially widespread applications for agriculture, medicine and energy. This achievement, by a consortium of scientists called the Arabidopsis Genome Initiative (AGI), becomes pub...

Genes reveal new clues about the first flower

... of the journal. Among the potential benefits are clues for the more efficient discovery of natural drugs, a precise framework for directing and evaluating the bioengineering of plants used for agriculture and medicine, and the ability to make more informed decisions about biodiversity conservation. "Wa...

Computer generates comparative gene maps

...in one species but not in another, and can provide clues about how both species evolved from a common ances...stance or improved nutritional value. In medicine, clues from the genome of the mouse are being used to help find genes associated with human diseases. The...

Enzyme is crucial for production of plant growth hormone

...pathway for auxin synthesis and is likely to offer clues that will aid researchers studying similar enzymes in mammals. The role of the FMO-like enzymes was discovered when the scientists created a mutant form of the plant Arabidopsis that had growth characteristics indicative of auxin overproduction. A...

Hessian fly genomics research will benefit wheat farmers, others

...ve been cloned in an insect, it also would provide clues to the genetics of other insects. We are taking a genomics approach to the Hessian fly gene and the molecules it produces, Stuart says. We are mapping the virulence genes in the fly. Then we will try to identify the molecules in wheat that interact w...

February media highlights: Geology and GSA today

... of the Early Cambrian diversification of life and clues to exceptional preservation of fossils. Loren Babcock, et al. This paper describes an accumulation of exceptionally preserved animals that lived in the Early Cambrian, about 12 million years before those from the well-known Burgess Shale. Both anima...

Mouse with iron disorder offers clues to Parkinson's, similar diseases

... involved in iron metabolism may provide important clues for deciphering the nature of a group of brain disorders-similar to Parkinson's Disease-affecting movement, according to a study by researchers at the National Institute of Child Health and Human Development (NICHD). The researchers reported in t...

Million dollar grant by the Paul G. Allen Foundation for Medical Research to University of Washington medical scientist program

...how the virus causes feline leukemia could provide clues to how HIV, a similar virus, causes human AIDS. Lauring is from St. Petersburg, FL. Ed Miao is in his final year of his Ph.D. thesis research in microbiology. The University of California graduate is focusing on Salmonella, which causes typhoid ...

The future belongs to proteomics

...ations between proteins, which can yield important clues about protein function. New biochemical tagging techniques have greatly aided attempts to determine the cellular location of proteins. Likewise, computer algorithms are being used to analyze protein structure to determine proteins that have evolved t...

Scientists detail parts of biological motor' key to cell life

...entists studying cellular division have longed for clues to how cancer cells are able to divide so rapidly. Now, studies by Ohio University biochemists are offering several new pieces needed to solve that mystery. In work presented Feb. 20 at the Biophysical Society annual meeting in Boston, scientists...

A first: A (nearly) complete road map for the evolution of placental mammals

...cting." In this field, scientists hunt for genetic clues to how living animals survived past catastrophes, ... epidemics, with the end goal of one day using the clues to help develop new and better strategies for human health and medicine. "The bottom line is that kn...

Calcium signals found to guide nerve cell development

...owth of neurons. But until now, scientists had few clues about how filopodia send their signals to the motile tips of neurons, called growth cones, or how they controlled the growing nerve cells' movements. When the finger-like projections of filopodia sprout from their growth cones, they sweep the area ah...

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