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Tag: "samples" at biology news

Innovative collaboration brings Arctic science into the classroom

...ith sample bottles and instructions on how to take samples from the Lena throughout the winter. Since September 2003, she has collected samples at 2-week intervals, often taking a snowmobile driven by her father out to holes in the ice and occa...

Microscopes at microscopic size

...nology and also to make the analysis of biological samples more sophisticated. Professor Paul Smith, the research group leader, said, "Our research and the outcomes from the spin-out company could help to revolutionise how we examine biological samples. Our next step will be to develop simple, small diagnos...

Hydrogen and methane provide raw energy for life at 'Lost City'

...graphic Institution's Timothy Shank analyzed water samples "vacuumed" from around the vents. "There aren't a lot of each kind of animal, most are only a centimeter in size and have translucent or invisible shells so it's no wonder we didn't suspect the actual diversity," says Kelley, who was chief scientist...

Making Sure Sacred Sheep Don't Become Extinct

...esponsible for collecting and storing thousands of samples of animal germplasm -- mainly semen and embryos --...rers, it has low value. Blackburn has 1,200 semen samples now from 27 different rams. He hopes to get samples from at least 50 different males to get a broad ...

15-year hunt finds cause of pseudothalidomide syndrome

...o find the Roberts gene, called ESCO2, by studying samples from just 15 Roberts syndrome families from Colomb...the last four years. "In 1989, we were collecting samples and characterizing the chromosome problem in cells from people with Roberts syndrome," Jabs remember...

Sugar beet virus mutation requires Texas touch

...gar company representatives at harvest time. Soil samples and infected beets are brought back to the lab at Bushland. Sugar beets are planted in the contaminated soil and the virus is purified from the infected plants, he said. The virus isolate is cultured in test tubes, and the plants are no longer needed...

Gov't Creates Gene Database of Normal Human Tissues

...ts can compare the genes from their own biological samples to this dictionary of normal expression. "Genes id...rated that microarray analysis of identical tissue samples at geographically separate laboratories can produce the same quality of results as those done within...

Alcohol consumption disrupts breastfeeding hormones

...lectric breast pumps to stimulate lactation. Blood samples taken throughout the procedure were analyzed for oxytocin and prolactin, the two key hormones that control lactation. Alcohol disrupted release of both hormones during lactation: oxytocin levels decreased an average of 78% and prolactin levels incre...

Researchers Find New Technique To Identify Fetal Genetic Material From Amniotic Fluid

...dical Center, Boston, and colleagues analyzed four samples of cell-free amniotic fluid from pregnant women be...ol group in this study was 6 pooled amniotic fluid samples from women at 17 weeks' gestation who were undergoing amniocentesis (removal of amniotic fluid to te...

A hope for oil spill bioremediation

... the anomalous DIC isotopic composition of certain samples taken along the shore of a contaminated island in ... could be reproduced in the laboratory using water samples taken from the contaminated shore, although the process required nitrogen and phosphorus amendment, ...

Ebola virus: from wildlife to dogs

...ry Ebola virus antibodies, several of the positive samples dating from before the first epidemics in these countries. These results therefore indicate that chimpanzees are regularly in contact with the animal virus reservoir and that some of them develop non-fatal infections. The presence of specific antibod...

Searching the depths of the straits of Florida for disease cures

... for unusual species, a key goal will be to gather samples of a sponge collected last May that produces chemi...ld numerous interesting and potentially lifesaving samples during submersible dives as deep as 3,000 feet. The team will also conduct daily scuba dives in sear...

Leprosy genome tells story of human migrations, French researchers report in Science

...d the world and then grown in armadillos until the samples were large enough to analyze. They focused on gene...tic sequence. In a study of 175 different bacteria samples from 21 countries, the researchers found only four of these possible combinations. Overall, the gen...

Life detection instrument passes key test on road to Mars

...bcritical water extractor together with the MOA on samples from popular test sites such as the "Rock Garden" ...et clogged as readily as they do when used to test samples in Berkeley with its high bioorganic levels. That means they'll need fewer channels on the instrumen...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

...versity. The Antarctic Census will take extensive samples from the deep abyssal plain on the sea floor, 4,50...05, a crew of 56 scientists from 10 countries took samples by towing two kinds of net over the ocean floor and by stamping out small cores 50 centimeters deep....

Community MRSA is re-emergence of 1950s pandemic, study suggests

...he researchers have sequenced key genes from 80/81 samples isolated between 1955 and 1969 in Australia, England and the USA, and compared them with the same regions in genes from a clone of one of the most common CA MRSAs which has been found in England and Scotland. They found that these key regions in nea...

Antiretroviral Therapy May Prevent HIV Transmission From Breastfeeding Mothers To Infants

... higher than those found in the mothers' blood. In samples of the infants' blood, the investigators observed high, inhibitory concentrations of nevirapine that were above those thought necessary to protect against HIV infection. Dr. Shapiro and colleagues hypothesized that the presence of antiretroviral drug...

High-powered gene profiles provide clues to genes involved in common form of lung cancer

... bring such abnormalities into focus. Using tumor samples from 44 NSCLC patients and 34 laboratory-grown lin...urred. Researchers re-analyzed the tumor and cell samples with the latest oligonucleotide expression microarray technology from Affymetrix, which indicates if...

Amazon source of 5-year-old river breath

... analysis by Mayorga and Aufdenkampe possible. The samples were collected by Richey's research group and Brazilian scientists on expeditions going back as far as 1991 that were funded by the National Science Foundation, National Aeronautics and Space Administration and the Research Support Foundation for the...

Bacterial genome sheds light on synthesizing cancer-fighting compounds

...acterium was isolated from the sea squirt. Because samples of Prochloron were easily contaminated with remnants of life inside its animal home, scientists couldn't tell if the bacterium or the sea squirt produced the sought-after patellamides, until now. By searching for patellamide synthesis instructions i...

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