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Tag: "techniques" at biology news

Techniques available to detect soil that inhibits destructive soybean pest

...g the American Phytopathological Society. However, techniques are available to find soils that specifically supp...the Journal of Nematology, Westphal summarizes the techniques for identifying soil that specifically suppresses soybean cyst nematodes. He also discusses how to u...

What Makes The Brain Tick, Tick, Tick: Researchers Gaining New Insights Into Brain's Internal Clock

...work colleagues are using an array of experimental techniques to try to identify this "baton" timing signal and to refine the theory. These include studies using genetically modified mice, pharmacological tools, recording of electrical brain signals in ensembles of brain cells and functional magnetic resonance ...

Scientists and engineers apply nature's design to human problems

.... Tovey is designing Web-hosting optimization techniques based on the foraging strategy of honey bees. Assistant Professor of Applied Physiology Young-Hui Chang and Assistant Professor of Biomedical Engineering Lena Ting use neuro-mechanical control principles derived from animals to engineer prostheti...

NCAR analysis shows widespread pollution from 2004 wildfires

...erving instruments, computer models, and numerical techniques that allowed them to distinguish between carbon mo... The team confirmed its results by using numerical techniques to compare simulated concentrations of carbon monoxide in the atmosphere with measurements taken by ...

Purdue's gold nanorods brighten future for medical imaging

...me barriers in developing advanced medical imaging techniques that use light to analyze blood vessels and underlying tissues. "One obstacle is that light in the visible spectrum does not pass through tissue very well," said Alexander Wei, an associate professor of chemistry who worked with Cheng and other Purd...

Bone marrow stem cells may heal hearts even years after heart attacks

...way. Meanwhile, researchers continue to refine the techniques for harvesting, processing and delivering stem cells into the damaged muscle tissue of heart attack patients. Piero Anversa, M.D., from the New York Medical College in Valhalla, New York, who was not connected with this study, called the results "e...

New cell transplantation technique restores insulin production in diabetics

...vents many of the complications common to previous techniques used to transplant islet cells. Thirty days after the procedure, all 13 patients were producing insulin without requiring supplemental injections, and none experienced major complications. Liver function tests and blood cell counts were monitored car...

Biotechnology's newest chemical tool

...stinct advantage over other commonly used labeling techniques for DNA and other biopolymers. "Our approach allows labeling of large native DNA molecules at specific internal or terminal loci," Klimasauskas explained. While potential applications are many, the researchers next plan to synthesize new AdoMet ana...

Restaurant seafood prices since 1850s help plot marine harvests through history

...g oil and different sauces to preserve fish. Their techniques spread outside the Empire and into the Northern Black Sea region, where large salting operations in the Crimea became a flourishing industry. A fish soup produced in huge open-air boileries was consumed in such large quantities by the Romans that the...

Student scientists create living bacterial photographs

...ng photos, says Marcotte. For example, he says the techniques could one day be used to build different tissues based on patterns of light or make bacteria that can produce structures useful in medical treatments. The students are already busy on their next innovation--bacteria that can find and create a line a...

Researchers offer proof-of-concept for Altered Nuclear Transfer

...apeutic potential, we must use all known tools and techniques in order to explore the mechanisms that give these cells such startling characteristics." ANT, Jaenisch emphasizes, is a modification, but not an alternative, to nuclear transfer, since the approach requires additional manipulations of the donor ce...

University of Delaware researchers develop cancer 'nanobomb'

...ubes are destroyed completely. Current surgical techniques are not precise and cancerous cells are often left behind. In addition, cancers in some part of the body, such as arteries and veins, are sometimes considered inoperable. Nanobombs can be used to target any remaining cancerous cells and can be used i...

NIAID researchers show how promising TB drug works

...ed difficult, says Dr. Barry. Conventional genetic techniques for comparing normal and mutant strains of M. tb failed, so the team turned to a specially modified microarray-based technique, called comparative genome sequencing, developed by NimbleGen Systems, Inc. (Madison, WI). This was the first time the tech...

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

...said that researchers have tried several different techniques with variable success. One hurdle is getting genes into muscle cells all over the body. Another is convincing those cells to permanently produce the therapeutic protein made by those genes. The gene therapy technique Rando and postdoctoral fellow C...

Researchers develop new method for studying 'mental time travel'

...t will allow you to remember specific details. The techniques that we used in this study allow us to visualize from moment to moment how well subjects are recapturing their mindset from the original event." In the experiment, participants studied a total of 90 images in three categories -- celebrity faces, fam...

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

...wn about the disease, and marries it to a suite of techniques based on next era technology. Targeting Breast Cancer and Metastases with a Combination of LHRH and Lytic Peptide, Hecate, bound to Iron Oxide Nanoparticles (Abstract 3280) Researchers have combined a hormone, a cell-killing peptide and nanopar...

Scientists observe how a close bond activates the immune system

...well understood because scientists had no suitable techniques to manipulate it. Now that problem has been solved. In a new study scientists at New York University School of Medicine and the University of California, Berkeley, report that they have observed the exchange of information between immune cells that i...

Marine conservation organizations team up to conduct Indonesia coral reefs assessment

...ntists. The October survey will use rapid survey techniques called "manta tows" with detailed Reef Check Plus surveys carried out at regular intervals. A manta tow involves towing a diver behind a boat while they record observations regarding ecological condition on an underwater slate. The Reef Check survey ...

Zooming in on the protein-conducting channel

...thods. Three-dimensional cryo-EM is one of the few techniques capable of visualizing large, dynamic molecules. In preparing for cryo-EM, researchers immersed the PCC-containing complex in water and then abruptly froze it in supercold liquid ethane. The rapid freezing imprisoned the complex in vitreous ice, a g...

Sperm stem cells closer to being like embryonic stem cells

... UT Southwestern team used substantially different techniques for sorting, growing and maintaining their stem cells in culture. Armed with a long-lived, renewable source of rat sperm stem cells, researchers at UT Southwestern are now working to genetically manipulate those cells. For example, the scientists w...

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