Tag: "collecting" at biology news

New method of DNA testing promises to transform medical diagnostics

...s what makes the test sensitive. It is capable of collecting a large number of photons. The ability of the polymer to absorb and emit a photon relative to the ability of that small florescent molecule attached to the PNA tail is huge, and that is what we call 'optical amplification.' "The light harvesting pro...

Would 'race' disappear if the United States officially stopped measuring it?

...on and they have proposed that the government stop collecting these data altogether. Respected voices from the fields of human molecular biology and physical anthropology (supported by research from the Human Genome Project) assert that the concept of race has no validity in their respective fields. Growing n...

Worlds largest rain forest national park created in Northern Amazon

...assistance during the planning phase as well as by collecting information about the region's biological importance. CI-Brazil will continue working with Amap State to support the new park by assisting with mapping, enforcement activities, developing basic infrastructure, inventory of the region's biodiversity a...

Scientists confirm age of the oldest meteorite collision on Earth

...R. Byerly lead author of the Science study began collecting samples from the South African and Australian formations more than 20 years ago. Although thousands of miles apart, both sites contain 3.5-billion-year-old layers of rock embedded with "spherules" tiny spherical particles that are a frequent byprodu...

Emory to receive more than $6.5 million to study environmental risk factors for Parkinsons disease

...r. Levey will research the genetic causes of PD by collecting DNA samples from Emory Parkinson's patients and performing genetic analyses of those samples. Through this analysis and a detailed, clinical registry of PD patients, environmental factors and genetic susceptibility will be examined closely. Dr. Leve...

Razing old dams solves some problems, creates new ones

...of dam removal. Since then, Stanley has been busy collecting data at dam sites, both before and after their removal, along the Baraboo River and Koshkonong Creek in Wisconsin. She says her findings show that dam removal "is not all cakes and ale": removing dams allows excess nutrients that run off from the lan...

Needle-free blood and tissue measurements

...t is absorbed by pigment in darker skin, so we are collecting data and developing equations that remove the influence of skin color and fat content on measurements," Soller said. "Our technique will take this human variability into account. Once we adjust for these variables, we can take measurements on the arm...

Robots powered by the ocean itself

...ffer the Navy and Marine Corps potential tools for collecting data about regions of the ocean necessary for mine countermeasures and other tasks important to expeditionary warfare. These systems represent advanced science and technology being developed to detect, identify, and classify mines in very shallow wat...

OSU studies breast cancer risk and beef consumption

...ersities across the country will simultaneously be collecting testing random samples of supermarket-bought beef to gauge the presence and amount of zeranol residue in commercially available products. Partner institutions include the University of Minnesota, Texas A & M, Cornell University and the University of ...

Pennsylvania's West Nile Virus surveillance system gets an assist from NASA data

...te data. The GIS mapping system became a model for collecting data from the field, laboratory and remote sensing images. Those data were combined and used to create a map of the state, with county designations that can indicate which counties West Nile Virus has been reported in. The PAWNVSS system was establi...

International consortium launches genetic variation mapping project

...timi, Ph.D., leader of the Howard University group collecting the blood samples in Nigeria, said, "We need to be inclusive in the populations that we study to maximize the chance that all people will eventually benefit from this international research effort." Because of the block pattern of haplotypes, it wil...

Science picksleads, feeds and story seeds (November 2002)

...lishing and monitoring channel cross sections, and collecting soil and sediment samples to determine links between rainfall amounts, occurrence of debris flows and other factors. This research provides information to better understand how the land surface and streams in mountainous terrains recover after a fir...

Polluted beach closures influenced by full moons and sunlight, surfer-engineer discovers

...her survey, researchers spent a night at the beach collecting samples every 10 minutes. ''One of the things we found during these short-term studies was that water quality varies over the course of the day,'' she said. ''That's because sunlight influences the concentration of bacteria in the water, so if someon...

Assisted reproduction may be linked to birth defect syndrome

...t of 279). Suspecting an association, DeBaun began collecting details about conception methods for new patients entering the registry. Subsequently, three of 65 BWS patients added to the registry were conceived through IVF. In the United States, roughly 0.8 percent of births are due to assisted reproductive t...

A new study sheds light on how the tongue restores its ability to taste following surgery

...ne-stimulated sodium transport through ENaC in the collecting duct of rat kidney. LPS-stimulated macrophages (or macrophage-conditioned media) also inhibit ENaC activity and mRNA levels in rat distal lung epithelial cultures. Thus, leukocytes and cytokines regulate ENaC function in nonlingual epithelial cells a...

UC Riverside study suggests placentas can evolve in 750,000 years or less

...ution of the eye," said Springer. Reznick has been collecting comparative life history data for around 15 years. For the study, he traveled around Latin America collecting the fish, going to museums to work with their collections, and then doing the appropriate dissection...

Predicting the movement of genes

...d observed the sunflowers for two growing seasons, collecting the seeds to analyze the protein and gene flow between generations of plants. The team found wild and hybrids had similar survival rates, but the wild plants produced more flower heads, more seeds per head and more seeds overall than the hybrids, s...

Food for thought: Cells dine on their own brains to stay fit and trim

...he chromosomes. "In human society, the business of collecting and recycling garbage isn't a very glamorous enterprise, but in the less prestige-oriented world of cells, it's invaluable," says Goldfarb. "We now know just how critical this process is, since a unique and elegant autophagic mechanism evolved to all...

Separated before birth: Molecular signals part fetal blood and lymphatic vessels

...oughout the body. The lymphatic system serves as a collecting duct for excess fluid and as a filtering system to screen out foreign organisms. "In SLP-76 deficient animal models, the two systems never separate during fetal development," said Kahn. "Remarkably, pictures taken of the blood pushing its way into t...

Down by the river

...eam of field assistants, traversed the countryside collecting data along rivers and uplands in the southern Appalachian forests of North Carolina to compare the relationship between exotic and native species richness. Combining information from the Carolina Vegetation Survey database and the United States Depa...

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