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Tag: "late" at biology news

U. of Colorado researcher identifies tracks of swimming dinosaur in Wyoming

...cation and using the fingers to reattach. In the late 1980s the researchers observed that sea lilies could, in fact, move from place to place---Baumiller had put some in a flow tank and noticed that they changed position from day to day, and Messing had noticed the same thing during dives with a submers...

Creeping crinoids! Sea lilies crawl to escape predators, new video shows

...cation and using the fingers to reattach. In the late 1980s the researchers observed that sea lilies could, in fact, move from place to place---Baumiller had put some in a flow tank and noticed that they changed position from day to day, and Messing had noticed the same thing during dives with a submers...

Scientists must offer solutions for conserving tropical forests in a rapidly changing world

...sts and its plant and animal inhabitants since the late '70 at STRI, encourages tropical scientists to conduct assessments based on existing long-term records. Basic research will help us to understand the dimensions and mechanisms of forest responses to anthropogenic forcing. Conservation scientists must...

Embryonic stem cells accrue genetic changes

...were genetic differences between the early and the late batch of each of the stem cell lines, including wh...e genes did show different methylation patterns in late batches compared to early batches. The scientists' analysis revealed that five of the nine cell l...

Past illegal blood donation in China linked to hepatitis C virus infection

...on has markedly curtailed such practices since the late 1990s, blood collection and banking methods in suc...ers began to sell blood as early as in 1973 and as late as 1998; the main reasons for stopping were improved economic status, concern about health effects o...

Chernobyl: The true scale of the accident

...thin months of the accident but others who died as late as 2004. The new numbers are presented in a landmark digest report, "Chernobyl's Legacy: Health, Environmental and Socio-Economic Impacts," just released by the Chernobyl Forum. The digest, based on a three-volume, 600-page report and incorporating ...

Tropical dry forests receive international recognition

...5 million in environmental services fees since the late 1990's. The network is made up of top scientists in the field from around the globe including Sanchez-Azofeifa, who will co-ordinate their efforts. Even from a research point of view, the group has some catching up to do. Since 1945, the ratio of pa...

Restaurant seafood prices since 1850s help plot marine harvests through history

... to the early 1920's. From the early 1920's to the late 1930's the price closely tracked the Consumer Pric...flat at a 2004 equivalent of about $7.00 until the late 1930's and a second jump in inflation-adjusted prices in the late 1950's. Since the late 1950's the ...

Shade trees getting 'scorched' by plant disease

.... On oak trees, BLS symptoms include scorching in late summer or early fall on leaves of all ages at about the same time. On sycamores and elms, symptoms progress from older to younger leaves. Affected leaves may curl and drop prematurely, and as the disease progresses, branches die and the tree declines...

Researcher uncovers details of how cancer spreads

...with clinical impacts. "We looked at a relatively late stage of cancer and its spread within the body," Guan added. "The spreading part is less well understood, and it's the spreading that is killing people." ...

Displaced songbirds navigate in the high Arctic

...ographic north can be determined by star positions late in the summer, as night returns to the high Arctic. ...

Asian immigrants in NYC not receiving HIV education at religious institutions

...d Chin, whose parents immigrated from Korea in the late 1950s. "They therefore rely heavily on immigrant community institutions to obtain social, economic and other supports. In the case of HIV, this role is especially important because of the social stigma surrounding HIV and the potentially dire heal...

US/African project deciphers deadly parasite genome

...n after it was introduced into South Africa in the late 1890s when infected cattle from northern Rhodesia (now Zambia) were imported to replace thousands of animals that had been killed during a devastating outbreak of rinderpest. Nobel Prize winning German microbiologist Robert Koch, who had been sent t...

Drug resistant avian influenza viruses more common in Southeast Asia than North America

...n Southeast Asia since it emerged in 1997. Between late 2003 and early 2004, outbreaks of highly pathogenic avian H5N1 influenza occurred among poultry in eight Asian countries, causing the death or destruction of tens of millions of birds. As of August 5, 2005, 112 cases of human H5N1 infection have been...

Discarded placentas deliver researchers promising cells similar to embryonic stem cells

...ing at the viability of amnion as a cell source in late 2001, obtaining discarded placentas from full-term births under an Institutional Review Board-approved protocol. In 2002, the University of Pittsburgh licensed the technology to a company now called Stemnion, LLC, and as part of the agreement, and in...

Old drug shows new promise for Huntington's Disease

...ly because the disease often manifests in early to late middle age after the carrier's children have alrea...tries because of its side effects. In Japan in the late 1950s and 60s, the drug was found to cause a neurologic condition called subacute myelo-optico-neuro...

Elusive salamanders have role in developing new sampling models

...dults lay their eggs in wetland depressions in the late fall. With winter rains, the ponds rise and the eggs hatch in December, January and February. Larval development lasts through May. The larvae then undergo metamorphosis and leave the ponds as terrestrial juveniles. Juvenile and adult salamanders may...

Brain networks change according to cognitive task

... have been debated since they were proposed in the late 20th century," said Bitan. "Now, with new techniques to analyze brain imaging data, we can examine the specific role played by different brain regions in the network that are required for any cognitive task. These techniques examining effective conne...

Quick identification needed to save Florida's citrus industry from devastating disease

...g since the psyllids were found in the U.S. in the late 1990s. Citrus greening infects all types of citrus species. The name "huanglongbing" means "yellow dragon" which is descriptive of the yellow sectors of infected trees. The symptoms of citrus greening usually include a blotchy mottle and leaf yellow...

Virus uses tiny RNA to evade the immune system

...ently, the microRNA that targets T antigen is made late in the infectious cycle, just when T antigen is no longer essential for virus replication. Further experiments showed that cytotoxic immune cells were more likely to kill cells infected with a mutant virus that cannot make the microRNA than the norma...

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