Global warming will not be helped much by efforts to reduce carbon dioxide emission into the atmosphere, say two scientists who have studied the matter.
Dr. Nir Shaviv, an astrophysicist from the Racah Institute of Physics of the Hebrew University of Jerusalem, and Prof. Jan Veiser a geochemist at the University of Ottawa in Canada and Ruhr University in Germany, say that temperature variations are due more to cosmic forces than to the actions of man.
In a recent article publishe
A team from Imperial College London based at Queen Charlotte’s and Chelsea, Hammersmith and the Royal Brompton Hospitals has worked with equipment developed by scientists at QinetiQ, Europe’s largest science and technology organisation, to study the heart rate of unborn babies in minute detail.
The technique, reported in this months British Journal of Obstetrics and Gynaecology, will allow doctors to monitor the health of babies’ hearts and obtain the full fetal ECG (fECG), particularl
University of Connecticut Health Center geneticists have made a two-fold discovery in gene recoding that will significantly increase understanding of the information in genome sequences and could prove to be a knowledge expressway scientists need for unraveling nervous system disorders such as Parkinson Disease and epilepsy. The research, published in the Aug. 8 issue of the journal Science, was supported by the National Science Foundation (NSF), the independent federal agency that sup
A novel method of analysis has been developed that could change the way complicated documents are assessed for bias, accuracy and consistency.
The technique could be used to simplify all sorts of records. For instance long legal documents that use complex and obscure reasoning could be stripped down to their essential arguments.
It could also be used to identify inconsistencies, spotting whether arguments have been changed or contradicted or if evidence has been hidden. The m
Moscow researchers have made the supercritical carbon dioxide work. Saturated with special reagents, carbon dioxide first extracts uranium from the spent nuclear fuel waste, then extracts plutonium and then flies away into the atmosphere.
As a matter of fact, the spent nuclear fuel consists of multiple elements. First of all, this is uranium that did not burn out and plutonium obtained as a result of nuclear reaction and numerous fission fragments, both radio-active and non-radio-acti
Stanford University Medical Center researchers have developed a way to tailor therapies to combat the specific inappropriate responses of autoimmune diseases in mice. The researchers also have shown that their technique can provide information needed to predict a disease’s progression. Eventually, their work may provide a way to reverse the course of such autoimmune diseases in humans as multiple sclerosis, rheumatoid arthritis and type-1 diabetes by first identifying the immune system culpri
Researchers at the University of California, San Diego have demonstrated that a chemical that permits plants to detoxify heavy metals can be transported from the roots to stems and leaves, a finding that brings the possibility of using plants to clean up soil contaminated with toxic metals such as lead, arsenic and cadmium one step closer to reality.
A paper detailing the discovery appears this week in an advance online publication of the Proceedings of the National Academy of Science
New use for seismic reflection data: revealing the most dangerous fault lines on Earth
Researchers have found an important new application for seismic reflection data, commonly used to image geological structures and explore for oil and gas. Recently published in the journal Nature, new use of reflection data may prove crucial to understanding the potential for mega earthquakes.
Mladen Nedimovic, the lead author and a scientist at the Lamont-Doherty Earth Observatory, a membe
Moore´s Law – a dictum of the electronics industry that says the number of transistors that fit on a computer chip will double every 18 months – may soon face some fundamental roadblocks. Most researchers think there´ll eventually be a limit to how many transistors they can cram on a chip. But even if Moore´s Law could continue to spawn ever-tinier chips, small electronic devices are plagued by a big problem: energy loss, or dissipation, as signals pass from one transistor to the next. Line up all t
Simulate Network Traffic from over 1 Million Web Browsers in Near Real Time
Researchers at the Georgia Institute of Technology have created the fastest detailed computer simulations of computer networks ever constructed—simulating networks containing more than 5 million network elements. This work will lead to improved speed, reliability and security of future networks such as the Internet, according to Professor Richard Fujimoto, lead principal investigator of the DARPA-funded projec
Findings have major implications for tobacco control and projected tobacco-related deaths
A new report released today at the World Conference on Tobacco or Health shows that young girls are smoking cigarettes almost as much as young boys. Results also show that girls and boys are using non-cigarette tobacco products such as spit tobacco, bidis, and water pipes at similar rates, and that these rates are often as high or higher than youth cigarette smoking rates.
These findi
A new application of a decades-old technique to study Earth´s interior is allowing scientists “see” the layers in the ocean, providing new insight on the structure of ocean currents, eddies and mixing processes. The findings, reported in this week´s Science by a team from the University of Wyoming and Woods Hole Oceanographic Institution (WHOI), could be a major step forward in the ability to remotely survey the interior of the ocean.
The study reports on a new adaptation of seismic
New research from the University of North Carolina at Chapel Hill has identified two genes that play key roles in regulating blood vessel development.
The research appears in two reports published in the Aug. 15 issue of Molecular and Cellular Biology, a professional journal. Dr. Cam Patterson, professor of medicine and director of the Carolina Cardiovascular Biology Center and a member of the UNC Lineberger Comprehensive Cancer Center, led both studies.
Both research papers
Scientists in sunny, hot Florida are thinking cold thoughts since they added ozone measurements from a NASA satellite into computer weather forecast models and improved several factors in a forecast of a major winter snowstorm that hit the United States in 2000.
When scientists added ozone measurements, predictions of snowstorm intensity, snowfall amounts and the storm track all improved for a storm that hit Washington, D.C. As such, they may be able to do the same for future storms,
Using a new approach for dissecting the complicated interactions among many genes, scientists at Dana-Farber Cancer Institute have discovered how a common cancer gene works in tandem with another gene to spur the unchecked growth of cells. The researchers say the technique was so useful in solving a longstanding puzzle that it may expedite the discovery of other such gene interactions that lead to cancer, and could accelerate the development of new cancer drugs.
The report in the Aug
In the future, many cancer scientists and physicians believe, a “molecular fingerprint” of an individual´s cancer may be used to diagnose that patient´s disease and tailor therapy.
Researchers at Vanderbilt have moved a step closer to that scenario with the identification of a distinct pattern of expression of 15 proteins in lung cancers that can predict a poor prognosis or a good prognosis. All patients in the poor prognosis group had died one year after diagnosis, while all patient
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