Tag: "nuclear" at biology news

Meteorites supplied Earth life with phosphorus

.... They then analyzed the liquid mixture using NMR, nuclear magnetic resonance. "We saw a whole slew of different phosphorus compounds being formed," Pasek said. "One of the most interesting ones we found was P2-O7 (two phorphorus atoms with seven oxygen atoms), one of the more biochemically useful forms of ...

Sensors at Watts Bar being evaluated by ORNL

...s Bar on the Tennessee River will be monitored for nuclear material as part of an effort to thwart terrorists...This real-world testing addresses radiological and nuclear material detection in commerce and is part of a larger program to collect commerce transportation da...

Engineering endurance: The future of the Olympics?

...expression. Evans and colleagues suspected that a nuclear receptor called PPAR--a major regulator of fat burning in fat tissue that is also prevalent in skeletal muscle--might be involved and genetically engineered mice to express an activated form of the PPAR protein in skeletal muscle. The transgenic mice...

Congress to fund Sequim-based coastal security research effort

...providing early warning of biological, chemical or nuclear material releases in marine and coastal environmen...and detect the presence of biological, chemical or nuclear materials in coastal waterways, beaches and estuaries. Another will look at developing novel ultra-s...

Ovarian cancer sheds tumor suppression with loss of estrogen receptor

...es that no longer expressed the estrogen-triggered nuclear receptor. The ER beta reintroduced into the cancer cell lines did not share the classic functions attributed to estrogen receptors, including induction of progesterone receptor expression and fibuline-1C, and it's ability to decrease the expression o...

Story tips from the Department of Energy's Oak Ridge National Laboratory, August 2004

... ] ENERGY -- More bang for the buck . . . Spent nuclear fuel from commercial reactors could be minimized and burn-up potentially doubled if Gamma Engineering's new silicon carbide-based cladding proves viable. Conventional cladding, the tubing that contains the enriched uranium that fuels reactors, become...

Technology already exists to stabilize global warming

...s identified 15 technologies from wind, solar and nuclear energy to conservation techniques that are ripe for large-scale use and showed that each could solve a significant portion of the problem. Their analysis, published in the Aug. 13 issue of Science, indicates that many combinations of these 15 techno...

Jefferson Lab detector technology aids development of cystic fibrosis therapy

...g system can successfully image gene transfer with nuclear imaging techniques. Lee says the next step is to continue to improve Jefferson Lab's small animal imager to get even clearer measures of gene function after inhaled gene therapy. "We want to introduce a third imaging modality, bioluminescenc...

New OHSU lab will speed drug discovery process

...BSR/PKCore, together with our recently established nuclear magnetic resonance (NMR) core, will provide this capability." Dawson added that the ability to identify small molecules and determine how they are distributed in the body and eventually excreted "is critical to the development of new drugs." ...

Newcastle scientists get UK's first stem cell license

... (HFEA) for the license to undertake 'somatic cell nuclear transfer', as it is known scientifically, in February 2004. Professor Murdoch said of the decision: "We're absolutely thrilled. The potential this area of research offers is immensely exciting and we are keen to take the work we've done so f...

UCSD researchers are first to demonstrate molecular link between inflammation and cancer

...eta is required for activation of a protein called nuclear factor kappa B (NF-kB), that acts as a master switch to turn on inflammation in response to bacterial or viral infections. In epithelial cells, NF-kB promotes the development of cancer not through inflammation, but through inhibition of a cell-killi...

Transcriptional gene silencing in nucleus shown by UCSD/VA medical researchers

...ver previous gene-silencing techniques is that the nuclear version may have the potential to last considerabl...tiviral vectors (molecular ferries) to open up the nuclear membrane, or special transfection reagents which direct the transfected synthetic siRNA to the nucle...

Malignant cancer cells generate mice through cloning

...t into a de-nucleated egg cell (a process known as nuclear transfer). After the egg cell developed into a blastocyst, Hochedlinger and Blelloch harvested embryonic stem cells which they then incorporated into a group of healthy mouse blastocysts. Many of these blastocysts developed into normal adult mice. Th...

Ecologist calls for creation of an international panel to assess human behavior

...ysicists during World War II to design and build a nuclear bomb. ''I am privileged to be at Stanford, one of the very best universities,'' he added, ''and yet more than three decades of effort by small groups of faculty and a few administrators have failed to get a frequently dysfunctional university senate ...

U of T research answers key question in biochemistry

...iate state at this level of detail." Using nuclear magnetic resonance (NMR) spectroscopy, the researchers obtained data that allowed them to develop crude pictures of intermediate states for small, fairly simple proteins. They hope to refine their methods and apply them to other systems with intermed...

Inflammation's trigger finger

... important molecular sergeants is a protein called nuclear factor-kappa B (NF-kB), which can order the production of scores of defensive proteins. But NF-kB can't work alone; it requires the help of a complicated complex of other proteins. A team of scientists which included Jeanette Ducut Sigalla, V...

Rutgers chemist uses NMR to elucidate protein-DNA interaction

...zheimer's disease. Through the use of the nuclear magnetic resonance (NMR) spectroscopy, Kalodimos and his co-workers were able to determine how proteins slide along the lengthy strands forming the helix structure of DNA until they reach their intended destination a specific DNA sequence. More impo...

Chipmunks descended from ancestors that survived last ice age, scientists say

... sources such as separate ice-age refugia." Unlike nuclear DNA that passes along vital genetic information, mitochondrial DNA is found in organelles and generates energy. It has been used to trace genetic lineage. In this case, researchers focused on a mitochondrial region called the D-loop, a highly varia...

Wistar-discovered antibody will help diagnose appendicitis

...ma camera, a common piece of equipment in hospital nuclear medicine departments. The FDA approved NeutroSpec for use in patients five years of age or older with equivocal symptoms of appendicitis. It is estimated that about half of the 700,000 patients in the United States with suspected appendicitis each ye...

Technology could enhance accuracy of breast biopsy

...can provide structural information such as cell or nuclear size, as well as measurements of hemoglobin oxygenation, vascularity and cellular metabolic rate - all of which are hallmarks of carcinogenesis and can indicate whether the needle has hit the mark, she says. "These chemical and structural features a...

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