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Tag: "measure" at biology news

Technique offers new view of dynamic biological landscape

... colonies when grown in culture dishes, they could measure the mutant cells' colony size in an automated fashion and use that to calculate their growth rates. To determine epistatic effects, they compared the growth rate for each cell containing mutations in two genes with the growth rate of mutant cells car...

New, unique microscope for nanotech

...tion about the bulk structure of a material and to measure the arrangement of atoms at the surface. The tip of the atomic force microscope can also be used as a probe to nudge cells, or place atoms or molecules into new, microscopic patterns. The project includes 24 UC Davis faculty from the departments of ...

Eisai announces Phase II data on E7389, a potential new therapy for the treatment of breast cancer

...lid Tumors) criteria ?a group of standards used to measure responses to treatment in solid tumors. Of the 65 evaluable patients, 10 partial responses were confirmed at the 4th cycle assessment. Twenty-one patients had stable disease (SD). In treatment-refractory patients with advanced breast cancer this pre...

Cheap, rapid hand-held check for HIV

... a hand-held, simple, inexpensive device that will measure the number of CD4+ cells in human blood without the need for extensive infrastructure," says James Turner, a biophysicist at the University at Albany, who led the research. ...

ASU researchers 'wire' DNA to identify mutations

... and Bingqian Xu carried out the measurement. "We measure a small current through the molecules using a setu...mismatched base. Not only was the group the first measure SNPs in this manner, but they were also the first to make the measurement in a water environment rel...

New technique puts brain-imaging research on its head

...ve done is use a technique originally developed to measure cardiac deformation to image deformation in human subjects during repeated mild head decelerations. Picture, if you will, a mangled quarterback's occipital bone banging the ground, then rebounding. The researchers have mimicked that very motion wit...

Setting the standard for computer models of life

...nal editors will adopt MIRIAM as a quality control measure for papers that describe models. This approach has worked very well for other fields - for example the microarray community, by enabling authors, publishers and data providers to work together to improve access to meaningful biological information." ...

UCLA imaging study of children with autism finds broken mirror neuron system

...ed functional magnetic resonance imaging (fMRI) to measure brain activity in 10 high-functioning children with autism while they imitated and observed 80 photos depicting different emotions such as anger, fear, happiness or sadness. In addition, the brain activity of 10 typically developing children was stud...

Environmental tobacco smoke linked to behavior problems in children and pre-teens

...additional measures to assess child behaviors. To measure exposure to environmental tobacco smoke, Dr. Yolton measured levels of cotinine in the children's blood. Cotinine is a substance produced when nicotine is broken down by the body and can be measured in blood, urine, saliva and hair. It is considere...

Largest study of human 'interactome' reveals a novel way

...e information to set the record straight on how to measure a protein's importance," he says. Using this kind of comprehensive comparison of information about human and other organisms allowed Pandey's group to identify 36 previously unknown protein-protein interactions, nine of which were tested in the labo...

Patterns in genome organization may partially explain how microbial cells work

... our study is that we need to develop more ways to measure the location of specific genes within individual cells." Palsson's team included Allen, recent Ph.D. graduate Nathan D. Price, and Ph.D. candidate Andrew R. Joyce. They downloaded the sequences of the 161 prokaryotic genomes from the CBS Genome Atla...

Sequencing our seas

...s of entire microbial communities, we can begin to measure the pulse of this marine ecosystem," said MIT's Ed DeLong, who led the research team. "These new DNA sequences from microbial communities will help us paint the picture of how that world works and provide important details on the players involved and...

Wyoming cloud seeding experiment begins this month

...s of entire microbial communities, we can begin to measure the pulse of this marine ecosystem," said MIT's Ed DeLong, who led the research team. "These new DNA sequences from microbial communities will help us paint the picture of how that world works and provide important details on the players involved and...

Vaccine provides 100 percent protection against avian flu virus in animal study

...s of entire microbial communities, we can begin to measure the pulse of this marine ecosystem," said MIT's Ed DeLong, who led the research team. "These new DNA sequences from microbial communities will help us paint the picture of how that world works and provide important details on the players involved and...

Carbon nanotube absorption measured in worms, cancer cells

...ity of Michigan researchers have discovered how to measure the absorption of multi-walled carbon nanoparticle...quantitative research on this because no method to measure them has existed until now. We were able to detect them, but had no way to determine how much was th...

Of mice, men, trees and the global carbon cycle

... metabolism to nitrogen can also assist efforts to measure the global carbon cycle. Through the process of ph...sorbed and stored as plant tissue, is difficult to measure but can be estimated globally from satellites, based on the visible plant cover. The plant cover ind...

Genetic and environmental influences on alcohol consumption among rhesus monkeys

...can control their social environment and precisely measure their exposure to alcohol, whereas human studies often rely on self-reported consumption patterns." Researchers examined data drawn from an ongoing longitudinal study of genetic and environmental factors affecting the neurobiology, behavior and alc...

Low-cost drug gaining favor for use in HIV-infected children in poor countries

...reatment, but the antibiotic may be a good stopgap measure until comprehensive HIV/AIDS care is available, or a way to extend the time until a patient needs anti-retroviral drugs, Vitória said. Vitória said many discussions at the WHO summit centered on which settings would best benefit from preventive cotr...

Fruit fly's beating heart helps identify human heart disease genes

...erence tomography (OCT), which is commonly used to measure the thickness of the retina in the eye, to obtain detailed images of the beating heart of an adult, unanesthetized fly. "After inserting into the fly the gene that we know is implicated in dilated cardiomyopathy in humans, we imaged the adult fly wi...

Boosting newborns' immune responses

...t off an infection in progress, or as a preventive measure in the event of a disease outbreak or bio-terrorist threat, Levy adds. Levy's team is uncovering other differences between the newborn and adult immune systems that could lead to additional targets for drugs or vaccines. A related paper, to be publi...

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