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Tag: "late" at biology news

Skull study sheds light on dinosaur diversity

...stics identifying them as skulls of titanosaurs, a late surviving sauropod lineage. "Titanosaurs, which were surprisingly common at the end of the dinosaur era, were really the only sauropod lineage that flourished. All the others went extinct," said Wilson, an assistant professor of geological sciences ...

Toxic flood lifts lid on common urban pollution problem

...ating flood. Early September test results released late last week showed high levels of bacteria, lead and harmful levels of chemicals including arsenic, according to the Environmental Protection Agency. While the sources of these and other contaminants remain under investigation, public scrutiny has foc...

Stem cells bring fast direct improvement, without differentiation, in acute renal failure

...eneficial paracrine actions are elicited early and late after onset of ARF The study said it "provides th...unomodulatory effects of MSC, as well as potential late phase contributions to organ repair via differentiation of stem cells into cells that have been dest...

Living with salt

...he Jean and Jula Goldwurm Memorial Foundation; the late Sally Schnitzer, New York, NY; the Kalman and Ida Wolens Foundation; and the Wolfson Family Charitable Trust. Prof. Joel Sussman is the incumbent of the Morton and Gladys Pickman Chair in Structural Biology. ...

Newfound roadblock to interferon effectiveness against malignant melanoma

...tribution to the behavior of melanoma cells in the late stage of the disease. The findings explain the frequent failure of interferon therapies and thus further our understanding of melanoma in its late, and most aggressive, stage. In the future, a routine analysis of the STAT5 status in melanoma patient...

Old drug, new tricks: Prospects for slashing the impact of malaria

...onducted in the African country of Tanzania in the late 1990s. These suggested that giving just one Fansidar tablet to an apparently healthy child during their routine infant immunization visits dramatically reduced the impact of any subsequent malaria infection. Used in this way, Fansidar does not preven...

Researchers identify genes associated with lung transplant rejection

...n the patient's ability to breathe, it's often too late to treat effectively. Caughey and his fellow researchers studied lung biopsy samples from 22 lung transplant patients, with the goal of detecting genes and gene products associated with inflammation and formation of scar tissue in breathing passages...

Quantum dots provide a faster, more sensitive method for detecting respiratory viral infections

...rent tests identify the virus, it is generally too late for them to work. * Reduce the inappropriate use of antibiotics: Currently, doctors often prescribe antibiotics for respiratory illnesses. However, antibiotics combat respiratory illness caused by bacteria and are ineffective on viral infections....

President Bush's cut to AIDS prevention in Africa would be devastating

...cts on the host." Since the logging period of the late 1960s, red-tailed guenons have been appearing in much lower densities, he said. What once were large groups with multiple males and females are now fragmented, with much smaller groups living isolated and spread out more widely than in undisturbed f...

Affymetrix and ParAllele Launch Industry's Most Comprehensive Product Line for Targeted Genotyping

...cts on the host." Since the logging period of the late 1960s, red-tailed guenons have been appearing in much lower densities, he said. What once were large groups with multiple males and females are now fragmented, with much smaller groups living isolated and spread out more widely than in undisturbed f...

Logging changed ecological balance for monkeys, damaged health

...cts on the host." Since the logging period of the late 1960s, red-tailed guenons have been appearing in much lower densities, he said. What once were large groups with multiple males and females are now fragmented, with much smaller groups living isolated and spread out more widely than in undisturbed f...

Public collections of DNA and RNA sequence reach 100 gigabases

...open exchange of biological information." In the late 1970s, as researchers started to study organisms at the level of their genetic code, several groups began to explore the possibility of developing a public repository for sequence information. In the early 1980s this led to the launch of two database...

For first time, brain cells generated in a dish

... cell development in blood and in the brain in the late 1990s, calling the process "neuropoiesis." "The exciting part is we are actually using methods that researchers involved with hematopoiesis used," Scheffler said. "Those researchers took primitive cells, put them in a dish and watched them perform. ...

Elevated temperature enhances success of viral cancer therapy

...d Frank McCormick: "Heat shock phenocopies E1B-55K late functions and selectively sensitizes refractory tumor cells to ONYX-015 oncolytic viral therapy" Publishing in Cancer Cell, Vol. 8, July 2005, pages 61-74 . DOI 10.1016/j.ccr.2005.06.009 www.cancercell.org ...

A novel virus for croup

...in the second year of life and its predominance in late autumn and earlier winter, that are matched by patterns of HCoV-NL63 occurrence. This systematic association of croup with HCoV-NL63 is particularly timely as the newly identified virus has spread worldwide, reported in Australia, Japan, the US and...

Woods Hole Research Center plans controlled burn in Amazon rainforest

...rosso state, at Fazenda Tanguro in Querencia, from late August into early September. The goal of this research is to better understand what is the impact of fire on the transition forests, which lies between the tall dense rainforests at the core of the Amazon and the "Cerrado" savannas of central Brazil...

New mitochondrial DNA gene chip may be early cancer diagnosis tool

... the cell's energy conversion mechanism. Since the late 1990s, researchers at the Johns Hopkins University School of Medicine have observed changes in mtDNA sequences in solid cancers, although the nature of the relationship remains uncertain. Their work suggested that particular changes in mtDNA might se...

Size matters: Preventing large mammal extinction

...al disadvantages such as long gestation period and late weaning age to contend with, significantly increas...such as low population density, slow life history, late weaning age and extended gestation in mammals above a certain size means they are evolutionarily dis...

Compound might defeat African sleeping sickness, clinical trial beginning this month

...es in sub-Saharan Africa almost disappeared in the late 1950s. That disease, African sleeping sickness, or... impairment of the brain and nervous system in its late stage and, if not treated, death. The World Health Organization has estimated that more then 300,000...

Neandertal femur suggests competition with hyenas and a shift in landscape use

...per Paleolithic which is associated with some very late Neandertals and early modern humans. However, this is a femur bone from a Middle Paleolithic Neandertal. It shows in the shape of the femur that a shift to greater mobility had already begun prior to the transition to the Upper Paleolithic, prior to ...

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