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Tag: "method" at biology news

Customized gene chip provides rapid detection of genetic changes in children's cancer

... College. If a clinical diagnosis isn't known, the method might provide some clues. The microarrray described in the paper has only been used in their laboratory study, but the researchers hope that with further study it may become more widely available as a diagnostic tool for oncologists treating patient...

Brains response to visual stimuli helps us to focus on what we should see, rather than all there is to see

...n of columnar function by devising an experimental method that used glass microelectrodes to "listen" to two neurons at a time. They used rats, whose brain organization mirrors that of a human, and dissected tiny vertical slices to preserve the circuitry. With fine glass pipettes, they recorded tiny impulse...

Logging doubles threat to the Amazon, rivaling clear-cutting, study suggests

... pixel as entirely forested or deforested.) "This method gives us an incredible map of the ubiquitous but very diffuse types of disturbances that exist in Brazil or in any tropical forest," Asner said. The researchers found that, from 1999 to 2002, selective logging added 60 to 128 percent more damaged f...

K-State researchers study insects' immune system

...ment of biological pesticides, Kanost said. Such a method of pest control only kills specific insects and is safe for humans. A recent development for Kanost's group is the transition from studying caterpillars to studying mosquitoes, which have a more direct impact on humans. Understanding how proteins in...

Reducing antibiotic use lowers rates of drug-resistant bacteria

...cci in kindergarteners. The prescription-reduction method involved not prescribing antibiotics for respirato...k against bacteria, not viruses. The dose/duration method involved using only recommended doses of antibiotics for no longer than 5 days. The researchers also...

War on terror meets war on cancer

A scientific method that has been used to track the source of illegal ...n-18 to common oxygen-16. Additional uses of the method may result from a new study that challenges the long-held belief that water moves so rapidly through...

University of Delaware researchers develop cancer 'nanobomb'

...wide variety of cancers. Panchapakesan said the method is far better than modern chemotherapy, which is n...ast cancer cells, he is also working to extend his method to prostate cancer and pancreatic cancer. He also foresees nano-bio-robots or nano-surgical tools...

Cyberkinetics, Case to develop system to help restore extremity function

... FES (Functional Electrical Stimulation) FES is a method of applying low level electrical currents to the b...y-to-day changes in the user's body via a feedback method that can adjust the stimulation so that it accomplishes the desired movement. Some FES systems are ...

Gene therapy for muscular dystrophy fixes frail muscle cells in animal model, Stanford study finds

...or of genetics. One of the main advantages of this method is that it could potentially provide a long-term f...pcoming paper Bertoni used a standard gene therapy method to introduce two genes - dystrophin and a gene that makes a glowing protein - into mice with a mouse...

Bacteria which sense the Earth's magnetic field

...e, the researchers used a new electron microscopic method which was developed in the Department of Molecular Structural Biology at the Max Planck Institute of Biochemistry, and which has already helped shed light on many cellular structures and functions. Cyroelectron tomography makes it possible to analys...

MIT researcher finds neuron growth in adult brain

...echanical engineering research affiliate -- used a method called two-photon imaging to track specific neurons over several weeks in the surface layers of the visual cortex in living mice. While many studies have focused on the pyramidal neurons that promote firing, this work looked at all types of neurons, ...

Researchers develop new method for studying 'mental time travel'

...e floating around in your head," Norman said. "Our method gives us some ability to see what cues participants are using, which in turn gives us some ability to predict what participants will recall. We are hopeful that, in the long run, this kind of work will help psychologists develop better theories of ho...

Magnetic probe successfully tracks implanted cells in cancer patients

...much more accurately than the radioactive tracking method and provided anatomic detail simultaneously -- structural detail not possible by tracking radioactivity. "On the MR images, we can see the lymph nodes, and we can see the magnetically labeled dendritic cells, and we can tell very clearly whether th...

DNA self-assembly used to mass-produce patterned nanostructures

...chips. The researchers also may explore how their method of assembling tiles can be used create biological structures that could act as tiny sensors. ...

Polymer gel can block toxic leakage problem in gene therapy

...al engineers have devised a potentially patentable method to arrest toxic leakages of genetically engineered...entists reported in research journals. "With this method we can reduce the misdirected virus dissemination by a factor of 100 to 1,000 times," said Fan Yuan,...

Nanoparticles, nanoshells, nanotubes: How tiny specks may provide powerful tools against cancer

...e second Rice University study aims to improve the method of delivery of nanoshells to a tumor. Although the leaky blood vessel strategy can passively dump nanoshells into tumors, it cannot "find" tiny cancers that have metastasized and have not yet "recruited" a substantial system of blood vessels to feed ...

Marine conservation organizations team up to conduct Indonesia coral reefs assessment

... slate. The Reef Check survey is the only standard method used to survey the world's reefs. Initial surveys in the region conducted by Reef Check and other marine conservation organizations have revealed varying levels of reef damage, with some reefs being entirely uplifted out of the sea and destroyed. ...

Zooming in on the protein-conducting channel

... his colleagues applied a computational analytical method called “normal mode-based flexible fitting?(NMFF) ...explain the structural data from cryo-EM. The NMFF method was developed and applied by co-authors Florence Tama and Charles Brooks of the Scripps Research Ins...

New GM mosquito sexing technique is step towards malaria control, report scientists

...at genetic manipulation could be used as a control method in mosquito populations. Professor Crisanti adds: "Although there have been a number of control programmes to eradicate malaria, none of these have been entirely successful, and many have also had side effects, such as environmental damage through i...

Genetic testing still smart choice, despite uncertainties

...accuracy of preimplantation genetic diagnosis, the method many practitioners use to pick the healthiest embryos during IVF, UF researchers set out to study the procedure. Their work, described during a recent meeting of the American Society of Reproductive Medicine, reveals the technique is actually highly ...

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