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Trace in Biological News

Atmospheric scientists trace the human role in Indonesian forest fires

TORONTO, ON Severe fires in Indonesia responsible for some of the worst air quality conditions worldwide are linked not only to drought, but also to changes in land use and population density, according to a new study in Nature Geoscience led by Robert Field of the University of Toronto. "...

Queen's University Belfast researchers trace octopuses' family tree

The findings of a study funded by the National Environment Research Council and led by Dr Louise Allcock at Queen's School of Biological Sciences and colleagues from Cambridge University and British Antarctic Survey will be reported at a conference in Spain this week. The World Conference on Ma...

Scientists trace molecular origin of proportional development

CINCINNATI When it comes to embryo formation in the lowly fruit fly, a little molecular messiness actually leads to enhanced developmental precision, according to a study in the Oct. 14 Developmental Cell from Cincinnati Children's Hospital Medical Center. While the fundamentals of this tin...

Cold Spring Harbor Laboratory scientists trace a novel way cells are disrupted in cancer

A research team at Cold Spring Harbor Laboratory (CSHL) is clarifying a previously unappreciated way that cellular processes are disrupted in cancer. Last year, scientists from the same CHSL team discovered that a "splicing factor" called SF2/ASF--a protein that changes the instructions for ho...

Advertisers, neuroscientists trace source of emotions in brain

GAINESVILLE, Fla. First came direct marketing, then focus groups. Now, advertisers, with the help of neuroscientists, are closing in on the holy grail: mind reading. At least, thats what is suggested in a paper published today in the journal Human Brain Mapping authored by a group of professor...

UF scientists trace origin of shark's electric sense

Sharks are known for their almost uncanny ability to detect electrical signals while hunting and navigating. Now researchers have traced the origin of those electrosensory powers to the same type of embryonic cells that gives rise to many head and facial features in humans. The discovery, repo...

The roots of civilization trace back to ... roots

About five to seven million years ago, when the lineage of humans and chimpanzees split, edible root plants similar to rutabagas and turnips may have been one of the reasons. According to research by anthropologists Greg Laden of the University of Minnesota and Richard Wrangham of Harvard Universit...

Researchers trace evolution to relatively simple genetic changes

In a stunning example of evolution at work, scientists have now found that changes in a single gene can produce major changes in the skeletal armor of fish living in the wild. The surprising results, announced in the March 25, 2005, issue of journal Science, bring new data to long-standing debat...

Iron isotopes as a tool in oceanography

...y say, "the unique isotopic fingerprint of pore fluid iron in continental shelf settings is confirmed, highlighting the potential for iron isotopes to trace the inputs of continental shelf-derived iron in seawater." Current thesis research aims to improve our understanding of iron cycling between sedime...

A crystal ball for brain cancer?

... shown to quell cancers in the breast, colon and lung. One month later, McNabb's tumors had shrunk by 95 percent. Subsequent brain scans show no trace of his cancer at all. The former marathon runner, ordained minister and father of two says he hasn't felt this good since his diagnosis last winter. ...

IOS Press announces launch of Journal of Berry Research

...porate interests." Professor Battino has recently served as guest editor for a special issue of BioFactors: Vitamins - Autoregulatory Substances - trace Elements - Growth Factors entitled EUROBERRY: Updates on Bioactive Behaviour of Berry Fruits. Published June 2009 by IOS Press, this update on the cu...

Researchers design first model motor nerve system that's insulated and organized like the human body

...cells are located in the body. In the central nervous system (CNS), the spinal cord and brain are surrounded by cerebrospinal fluid that contains only trace amounts of protein. This system now allows for both the PNS and CNS to be studied in the same defined system. The UCF team plans to use their new m...

French Authorities Give Sole Approval to GMAT Exam to Collect Biometric Data to Advance Security

...didate's palm vein pattern, thus ensuring the test taker is that candidate. It offers a highly reliable form of authentication because it utilizes no trace technology, no image is ever stored, and the data cannot be read by other devices. The CNIL noted in its approval, "It is not likely to be captured wi...

Down Under dinosaur burrow discovery provides climate change clues

...the heels of his discovery in Montana of the first trace fossil of a dinosaur burrow, Emory University pale... and was astounded to see, right at eye level, the trace fossil of what appeared to be a burrow almost iden...n enlarged chamber. Martin later found two similar trace fossils in the same area. Last period of gl...

Two dietary oils, two sets of benefits for older women with diabetes

...dations suggesting that omega-6 fatty acids are among the polyunsaturated fats that should be consumed for heart health. CLA is found naturally in trace amounts primarily in beef, lamb and milk, but obtaining levels comparable to those used in Belury's study likely requires concentrated doses similar t...

Study shows Chronix technology using serum DNA can identify early presence of disease

...sing circulating fragments of DNA to detect early stage disease. These DNA fragments, referred to as serum DNA, are released into the blood stream in trace amounts during the disease process. Chronix Biomedical has developed proprietary technology that can find, isolate and identify these serum DNA sequen...

Nutricia launches Nutra Neocate, weaning product designed for cows’ milk protein allergy

...onfidence a weaning product that is made from 100% non-allergenic amino acids, ruling out any possible allergic reactions caused by an exposure to any trace of cows' milk. Neocate Nutra contains key essential nutrients potentially missing from a dairy-free diet and contains a child's full dietary requireme...

American Chemical Society's Weekly PressPac -- June 3, 2009

...eduled for the June 10 issue of ACS' Journal of Agricultural and Food Chemistry , a bi-weekly publication. Gary Pickering and colleagues note that trace amounts of chemicals called alkyl-methoxypyrazines (MPs) are generally negative to wine quality, masking the desirable fruity and floral flavors and g...

New cleaning protocol for future 'search for life' missions

...etectable organic biosignatures, before any samples are collected. Importantly, this new procedure doesn't just sterilise, but it also cleans off any trace organic molecules of dead organisms," says Professor Benning. The work was carried out as part of the Arctic Mars Analog Svalbard Expeditions (AMA...

Scholar unconvinced new lie-detection methods better than old ones

... are intertwined." "And I go back to all this media, debate, science fiction and scientific detective fiction from the turn of the 20th century and trace these stories all the way through to current fMRI literatures in the scientific and popular press." Littlefield is working on another book, tentat...

Newly discovered reactions from an old drug may lead to new antibiotics

...uld be the key to developing a new line of antibiotics for bacteria that commonly cause diarrhea, tooth decay and, in some severe cases, death. The trace mineral selenium is found in a number of proteins in both bacterial cells and human cells called selenoproteins. University of Central Florida Associa...

Rapid approach to identify influenza A virus mutations and drug resistance developed

...fficer for Biomarker Development. "This should greatly simplify the process of sequencing novel viruses." The scientists' approach is also able to trace the mutations in the influenza A virus that may cause its resistance to drugs. "The significance of this tracking process can be better appreciated...

Researcher garners major award from NIH for further exploration into the mechanisms of obesity

...ing, much the same way as a thermostat sends information to the furnace or air conditioner to regulate temperature inside a house. Using viruses to trace communications in the nerves of Siberian hamsters, they found that the brain uses part of the nervous system used to regulate body functions, called t...

Healing wounds with lasers, vehicles that drive themselves, other cutting-edge optics

... television displays use comparable technology. A trace is swept horizontally across the screen, but inste...d to proceed toward the phosphor screen, where the trace shows up as a bright or dark spot. The display is ...rt again with the next trace. Each deflected light trace is then focused onto an array of camera pixels. Th...

The challenges of avian influenza virus: Mechanism, epidemiology and control

... appreciated for the future preparedness of possible pandemics. From the current human reported H5N1 virus infection cases, most of the patients could trace back with contacts of birds (chicken or ducks) though there were some reports with evidence of limited human-to-human transmission. Therefore domestic...

Using high-precision laser tweezers to juggle cells

..., the new method has been tested on yeast cells. One of the cells' proteins was tagged with a green fluorescent protein (GFP), enabling researchers to trace the movements of the protein within the cell while it adjusts to a new environment. 'The method can be used to reveal how a cell reacts to stress in...

Monitoring water through a snake's eyes

...s. The special fiber sensors make it possible to monitor the quality of water in a remote location, such as a lake, a river, or a pipeline, and detect trace amounts of contaminants in real time, adds Prof. Katzir. Water management executives in Florida's Everglades and officials in Germany are among those ...

Searching for pollution in the Caribbean

...r. Sanchez-Cabeza elaborated. "We use techniques to measure the contents of trace metals (like lead or mercury), hydrocarbons and pesticides. For example, using x-ray fluorescence reveals easily the trace metals that are present in the sediment." These techniques also bring a ...

Researcher: Lasers used to detect melamine in baby formula

... WEST LAFAYETTE, Ind. - With equipment readily available to health officials and businesses, a Purdue University researcher has found a way to detect trace amounts of melamine in infant formula. Using infrared lasers and light spectroscopy methods, Lisa Mauer, an associate professor of food science, wa...

G. Unger Vetlesen Foundation funds purchase of state-of-the-art equipment for UM's Rosenstiel School

... biologic and chemical samples required to analyze trace elements and isotopes that unlock the historic cli...eophysics division, the group studies isotopes and trace elements on a global scale, including extensive re...t living fossils; concentrations of iron and other trace elements in seawater; and how organisms utilize th...

Increasing levels of rare element found worldwide

... HANOVER, NH Dartmouth researchers have determined that the presence of the rare element osmium is on the rise globally. They trace this increase to the consumption of refined platinum, the primary ingredient in catalytic converters, the equipment commonly installed in cars to redu...

UW-Madison study reveals new options for people with PKU

... Some even sustain permanent brain damage. The GMP protein isolated from whey, on the other hand, is the only known dietary protein that contains only trace amounts of phenylalanine; absolutely pure GMP, in fact, is completely phenylalanine-free. The first GMP human feeding trial was published in Februa...

Lohafex provides new insights on plankton ecology

...n. By the end of the experiment, chlorophyll concentrations were in decline. By now the patch will have merged with its surroundings leaving behind no trace other than a swarm of well-fed amphipods. Outlook These preliminary findings will be supported by additional measurements that will be accompli...

New method for detecting explosives

...cientists show that their technology is capable of trace detection of explosives. They also show that it is...-- the dangerous and the benign. They may detect a trace amount of TNT, for instance, but they may not be able to distinguish that from a trace amount of gasoline. Seeking to make a better mi...

AGU journal highlights -- March 12, 2009

...etons remains largely unknown. Recently, advances in microanalytical techniques have made it possible for scientists to investigate the variability of trace elements and stable isotopic compositions within coral skeletons. These studies have revealed systematic compositional variations within skeletons tha...

How Volvox got its groove

...nts and animals evolved from single cells. Cooperating successfully is the key, Herron said. "All the macroscopic organisms we see around us trace back to unicellular ancestors," said Herron, a doctoral candidate in the UA's department of ecology and evolutionary biology. "Each of those groups ha...

New reference material can improve testing of multivitamin tablets

...s developed a new certified reference material that can be an important quality assurance tool for measuring the amounts of vitamins, carotenoids, and trace elements in dietary supplements. The new Standard Reference Material (SRM) 3280 for multivitamin/multimineral tablets was created in collaboration wit...

Mayo Clinic researchers suspect a novel gene is causing restless legs syndrome in a large family

...f her relatives also have the same trouble sleeping difficulties she could trace back through her ancestry. With the patient's approval, that information...an "try to overcome that problem with drug therapy," he says. They can also trace the molecular route from the gene mutation to the disorder, and see if the ...

New computational technique allows comparison of whole genomes as easily as whole books

... With nearly a thousand genomes partly or fully sequenced, scientists are jumping on comparative genomics as a way to construct evolutionary trees, trace disease susceptibility in populations, and even track down people's ancestry. To date, the most common techniques have relied on comparing a limite...

New insights into a leading poultry disease and its risks to human health

...so utilized MEGA4, a software program developed by the Biodesign colleague Sudhir Kumar's lab that is used by more than 50,000 scientists worldwide to trace back and compare the evolutionary history of any DNA segment. "DNA sequencing and bioinformatics analysis are very powerful tools that contribute i...
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