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Tag: "accurate" at biology news

Man may have caused pre-historic extinctions

...eistocene period. The aim is to provide a far more accurate timetable for the extinction of caballoid horses and mammoths and, ultimately, the cause. "This research is exciting because it throws open the debate as to whether climate change or over-hunting may have led to the extinction of pre-historic horses...

High-tech research shows cocaine changes proteins and brain function

...igh-throughput mass spectrometry which allowed the accurate identifcation of thousands of proteins simultaneously, Hemby said. The unbiased nature of the technology enables the determination of novel proteins and pathway involved in disease. Using post-mortem brain tissue samples from the Brain Endowment B...

MIT creates 3-D scaffold for growing stem cells

... In addition to helping researchers get a more accurate picture of how cells grow and behave in the body, the new synthetic structure can provide a more conducive microenvironment for tissue cell cultures and tissues used in regenerative medicine, such as skin grafts or neurons to replace brain cells lost...

'Mindless autopilot' drives people to underestimate food decisions

...enjoy -- the upcoming dessert. You'll also be more accurate at estimating the number of calories you consumed. Sit next to the slowest eater at the table: Use that person as a benchmark as to how slow you should eat. Always be the last one to start eating, and set your fork down after every bite. Embr...

Age-related changes in DNA repair illuminate the connection between age and genetic damage

...ed by Cell Press. DNA repair is essential for the accurate preservation of genetic information and to ensure ...thods are simple but error prone, whereas the more accurate methods have elaborate molecular requirements and are probably much slower. The new results show...

Plague proteome reveals proteins linked to infection

...tional Laboratory used proteomic techniques called accurate mass and time tag mass spectrometry and clustering analysis to compare abundance changes in 992 proteins under four different growth conditions, at 26 degrees and 37 degrees Celsius and with and without calcium. They found 89 candidate proteins wi...

Perceived facial similarity in children is an estimate of kin recognition

...roup. These ratings could also be transformed into accurate estimates of the probability that a given pair of children portrayed siblings. The study was conducted by researchers Laurence T. Maloney, of New York University's Psychology Department and Center for Neural Science, and Maria F. Dal Martello, of the...

Cardiologist's 'living chip' changes science of disease monitoring

...changes with faster, improved accuracy. These more accurate results, retrieved without invasive testing, allow for better and timely response and, the hope is, a healthier patient. How it worksUltimately, cells specific to the patient can be engineered to live on and function as part of the miniature electr...

Soil nutrition affects carbon sequestration in forests

...ss these diverse forests bodes well for developing accurate models to predict the ability of the world's fores...To predict how much forests can sequester, we need accurate ways to predict what happens to carbon within forest systems and how this partitioning is affected b...

Protein folding: Building a strong foundation

...tructure modeling and prediction, developed highly accurate knowledge-based potential functions that made the current collaborative study possible. "As far as we know, no one has ever used this type of knowledge-based, statistical approach to predict the stability cores of proteins," Ma said. "Our results s...

New HIV statistics indicate increasing toll of AIDS on African American community

...are programs. ?Far too many African Americans lack accurate information about how HIV is transmitted, prevented and treated. Approximately 250,000 Americans ?many of them African American ?are unaware that they have HIV. These individuals are not receiving life-saving medical care and may unknowingly transmi...

Protein 'fingerprint' in spinal fluid could spot Alzheimer's disease

...expand on these findings." The dream of a highly accurate Alzheimer's disease test that patients and doctors could use to diagnose illness and guide treatment is the ultimate goal. But the finding has important implications for current Alzheimer's research, as well. "You might have a promising treatment ...

MIT's molecular sieve advances protein research

New MIT technology promises to speed up the accurate sorting of proteins, work that may ultimately aid in the detection and treatment of disease. Separating proteins from complex biological fluids such as blood is becoming increasingly important for understanding diseases and developing new treatments...

High-throughput oncogene mutation detection in human cancers by mass spectrometry-based genotyping

...rometry-based genotyping, which is a sensitive and accurate method to detect single nucleotide polymorphisms (SNPs) in DNA. But while this tool is mostly used to understand how single letter (or nucleotide) changes in genes might correlate with disease risk in normal individuals, the researchers adapted it to...

When the label says 'low fat,' calories can pile up, study says

... people from eating too much by giving them a more accurate calorie count. ...

Mayo discovers protein as potential tactic to prevent tumors

...ealth and well-being of offspring cells depends on accurate genetic code transfer from one generation of cells to the next. The Mayo researchers showed that when errors in genes are irreparable, CDK2 modifies another cellular protein -- FOXO1 -- to send a signal that results in the death of the cell. This pro...

Fast test for low blood flow in dogs detects early heart trouble

...opkins heart specialists have developed a fast and accurate means of tracking blood that has been slowed down by narrowing of the coronary arteries. Researchers say it took them less than half the time of exercise stress tests and echocardiograms currently used to find early warning of vessels more likely t...

What does the public really know about HPV?

...sion of knowledge to make sure that all women have accurate knowledge about HPV and how to prevent cervical cancer." The Effects of Information Framing on Intentions to Vaccinate Against HPV The success of the HPV vaccine depends largely on the public's willingness to accept vaccination. Because of the...

Genetic surprise confirms neglected 70-year-old evolutionary hypothesis

... a single species can split in two turns out to be accurate after all, and acting in nature. The finding, reported in today's issue of Science, reveals that scientists must reassess the process involved in the origin of species. The beginnings of speciation, suggests the paper, can be triggered by genes that...

Fast-freeze snapshot yields new picture of nerve-muscle junction

...croscopy and immuno-gold staining, now provides an accurate picture of where these synaptic proteins cluster -- information previously unknown to scientists. Co-author Robby Weimer, a post-doctoral fellow at the Cold Stream Harbor Laboratory in New York, developed the high-pressure freeze technique to view ...

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