journal 2 4

Tag: "journal" at biology news

NC State scientist finds soft tissue in T. rex bones

...n a paper published in the March 25 edition of the journal Science, Schweitzer describes the process by which she and her technician, Jennifer Wittmeyer, isolated soft organic tissue from the leg bone of a 68-million-year-old Tyrannosaurus rex. Schweitzer was interested in studying the microstructure and or...

Circles Of DNA Might Help Predict Success Of Stem Cell Transplantation

... Children's Research Hospital, is published in the journal Blood. This finding could help physicians predict whether children receiving such a transplant will experience either failure or significant delay in the reconstitution of the T cell population. Moreover, if the transplant is successful, T cells ari...

Ice core 'dipstick' indicates West Antarctic ice has thinned less than believed

...h is being published online March 23 in Geology, a journal of the Geological Society of America. Co-authors are Howard Conway and Eric Steig of the UW; Richard Alley of Pennsylvania State University; Edward Brook of Oregon State University; Kendrick Taylor of the Desert Research Institute at the University o...

New research indicates a 'troubled' greenhouse is brewing

... is brewing is published in the April issue of the journal Geology. In this case, the word "troubled" refers to the stormy conditions shown to have been in play during a well-known greenhouse event some 55 million years ago during the late Paleocene epoch. Retallack explored the relationship between seasona...

Tiny scaffolding allows stem cells to become working fat cells

...reported this progress in the current issue of the journal Tissue Engineering. "There is a serious shortage of transplantable organs available for thousands of patients nationally," Kniss said. "One ultimate goal of this work might be creating new tissue that could serve either as a temporary substitute whi...

Plants defy Mendel's inheritance laws, may prompt textbook changes

...he study is published in the March 24 issue of the journal Nature. Pruitt and collaborator Susan Lolle found that Arabidopsis in which each parent plant had two copies of a mutant gene could produce progeny that didn't show the parents' deformity, but rather were normal like the grandparents. Under Mendelia...

UCSD discovery may help extend life of natural pesticide

...esticide. The study, published February 11 in the journal Science, details the structure of a molecule to which Bt attaches, or "binds," in the lining of the intestines of insects and roundworms. The molecule is a glycolipid--a lipid attached to a tree-like arrangement of sugars. Because changes in the suga...

Scientists identify new model Of NK cell development

...he findings, appearing in the Mar. 22 issue of the journal Immunity, may offer clinicians new direction in determining how to manipulate this cell type in enhancing immune responses to cancer. "This study is fundamentally about understanding the immune system more fully so we can help patients," says Caligi...

Research Using Mouse Models Reveals A Novel Key Player In The Initiation Of Colon Cancer

...y will be published in the February 1 issue of the journal Genes and Development. An animal model with an inactivating mutation within the mouse equivalent of the APC gene displays very similar pathology as seen in human colon cancers and develop tumor growths called polyps in their colons, eventually leadi...

Bird Brains Show How Trial and Error May Contribute to Learning

... of a paper in the February 10, 2005, issue of the journal Nature that demonstrates how the region modulates bird song in real time. Kao, a Howard Hughes Medical Institute (HHMI) predoctoral fellow, is in the final months of her doctoral training in the laboratory of co-author Allison Doupe at the University...

The Bacteria's guide to survival

...val in the long run. Reporting in the open-access journal PLoS Biology, Magdalene So and colleagues present evidence that bacteria can induce changes in hosts' gene expression - and possibly keep the host cells alive longer - through tiny tugs on cell membranes. The study examined gene activity in human epi...

X-Ray Beams And Fruit Fly 'Flight Simulator' Aid Scientists' View Of Muscle Power

...ts in a report in the Jan. 20 issue of the British journal Nature. To conduct their research, Maughan and his IIT and Caltech colleagues merged extremely bright X-ray beams and a “virtual-reality flight simulator?for flies, designed by Michael Dickinson of Caltech, to probe the muscles in a flying fruit fly...

UF Researchers Map Bacterial Proteins That Cause Tooth Loss

...escribe their findings in the current issue of the journal Proteomics. “Determining which proteins are expressed in greater levels in the mouth has allowed us to gain clues as to how P. gingivalis might be causing disease, and what we might be able to do with drugs or vaccines to prevent it,?said Richard La...

UCSD team discovers specialized, rare heart stem cells in newborns

.... Published in the February 10, 2005 issue of the journal Nature, the research identified the isl1+ progenitor cells in the tissue of newborn rats and mice, and then in heart tissue taken from five newborn human babies undergoing surgery for congenital heart defects. Study author Sylvia Evans, Ph.D., a mem...

How an AIDS-Related Cancer Unleashes Inflammation

...eir findings in the February 4, 2005, issue of the journal Science. Ganem and McCormick dedicated the Science article to the memory of Robert Sadler, a former HHMI associate in Ganem's lab who discovered kaposin B. Sadler was killed in 1999 by stray bullets fired into a San Francisco nightclub. According t...

PCRM develops world's first cruelty-free insulin assay

...hodology will be published soon in a peer-reviewed journal in conjunction with Linco. Even will present her findings at the "Experimental Biology 2005" scientific conference in San Diego, April 2-6. The new assay kits are available commercially from Linco. "We hope that by making the test readily available ...

Opposing fat metabolism pathways triggered by a single gene

...ecific lipid molecules. In the premier open-access journal PLoS Biology, Keith Yamamoto and colleagues show that the nuclear hormone receptor nhr-49 controls two different aspects of fat metabolism, which interact to form a feedback system controlling the consumption and composition of fats in the nematode. ...

Genetically modified rice in China benefits farmers' health, study finds

...the study will appear in the April 29 issue of the journal Science. "This paper studies two of the four GM varieties that are now in farm-level preproduction trials, the last step before commercialization" says study co-author Carl Pray, an agriculture, food and resource economics professor at Rutgers' Cook...

Molecular Motors Cooperate In Moving Cellular Cargo, Study Shows

...d corresponding author of a paper to appear in the journal Science, as part of the Science Express Web site, on April 7. "We also found that multiple motors can work in concert, producing more than 10 times the speed of individual motors measured outside the cell." Dynein and kinesin are biomolecular motors...

A new study examines how shared pathogens affect host populations

... Naturalists, The American Naturalist is a leading journal in the fields of ecology and evolutionary biology and animal behavior. For more information, please see our website: www.journals.uchicago.edu/AN Volker H. W. Rudolf and Janis Antonovics, "Species coexistence and pathogens with frequency-dependent t...

1 2 3 4 5 6 7 8 9 10