About 40 percent of Los Angeles County residents say they get no more than 10 minutes of continuous physical activity each week, according to a new report.
Women interviewed for the study were almost twice as likely as men to be physically inactive, say Antronette Yancey, M.D., M.P.H., of the UCLA School of Public Health and colleagues. Older and less educated residents, along with those born outside the United States, were also apt to be sedentary.
The findings appear in the Aug
This morning a team of forty scientists from seven UK universities will travel to the Azores to join hundreds more in the largest international atmospheric field campaign of its type ever attempted.
The exciting mission will track and investigate a mass of polluted air as it leaves the United States and travels across the Atlantic to the UK and mainland Europe. Scientists will measure chemical reactions within the air-mass as it travels, quantifying the resulting pollutants delivered to Eu
Moore’s Law states that the number of transistors on a chip doubles every eighteen months. However current silicon technologies are approaching the limits imposed by quantum mechanics, which will stop Moore’s Law in its tracks within 20 years. New materials and techniques must be found to complement and increase the capabilities of the current silicon technologies to maintain the growth and profitability of the semi-conductor industry.
Semiconducting carbon nanotubes can be doped like sili
Aluminium is a metal widely used in industry; therefore the more that is known about it, the more effectively it can be used. Researchers at Risø National Laboratory in Denmark and the European Synchrotron Radiation Facility (ESRF) in France have filmed in 3D the changes in the bulk of deformed aluminium after annealing. Thanks to the uniqueness of the synchrotron light at the ESRF, this kind of experiment could take place for the first time ever. The results give a new insight into this metal and c
The John Innes Centre (JIC)Norwich, has today announced its key role in an EU-funded consortium to develop novel antibiotics in the war against drug-resistant superbugs. The ’CombiGyrase’ consortium of 7 laboratories from Germany, Italy, Spain, Switzerland and the UK will receive 1.56 million Euros over three years, with 228,000 Euros (£150,000) going to the JIC.
“There is a lot of concern about the rise of drug-resistant bacteria, so called superbugs, such as MRSA”, says Professo
The use of Ariane launcher technology has blasted a French loudspeaker firm into a winning position. Haliaetus Technologies won a top prize in a prestigious competition for creative start-ups with an innovative loudspeaker that uses rocket nozzle shapes to reduce sound distortion.
Three years ago, Jean-Pierre Morkerken, an acoustic researcher from the French lab ’Laboratoire d’Acoustique Musicale’, at the ’University Pierre and Marie Curie’ in Paris, got the idea to adapt rocket nozzle pro
The launch of NASA’s Aura spacecraft atop a Boeing Delta II rocket is rescheduled for Tuesday, July 13. Launch is set for the opening of a three-minute window at 6:01:59 a.m. EDT (3:01:59 a.m. PDT). Yesterday, during routine pre-launch checks, engineers discovered an improper assembly of the fairing ordnance detonator connector within the Delta II booster fairing. This detonator acts to separate the fairing during flight. Mission managers decided an additional 48 hours was need
The University Hospital at Navarre University has developed a system for the percutaneous implantation of palladium 103 seeds, a new technique in permanent bradytherapy for the treatment of lung cancer. Recently, the fourth experiment was carried out and the results remitted to the scientific magazine, “Bradytherapy”, for its publication. To date there has been no description in world scientific literature of any case using this therapeutic procedure.
The Clínica Universitaria has hosted the
Metastasis of cancer may cause as many, if not more, deaths than cancer itself. Amongst other reasons, this is because it is very difficult to know where the new tumour is going to develop. Moreover, the mechanisms of metastasis are still not well understood, although a lot of research into it is taking place and advances are being made. Dominion Pharmakine is a company located at the Bizkaia Technological Park where they are studying metastasis.
At times, a cell in our body may suffer a mu
Researchers at The Wistar Institute and the University of Pennsylvania report success in monkeys of an innovative triple-vaccine strategy aimed at creating an effective anti-HIV vaccine regimen. In a test of the new approach, the scientists sought to maximize the immune response to a truncated HIV gene called Gag and succeeded in dramatically stimulating the production of CD8+ T cells responsive to Gag. Many scientists believe that CD8+ T cells will be an important key to creating an effective HIV
Organisms ranging from bacteria to humans navigate environments that can contain dangerously too little or too much oxygen. Yet, scientists know little about how animals sense oxygen levels around them.
Researchers from the Berkeley and San Francisco campuses of the University of California have now discovered how the nematode C. elegans senses oxygen levels in order to steer clear of surrounding areas that are too low or too high in oxygen.
In the process, the researchers also di
Scientists thrilled by first confirmed sighting in almost a decade
The Cozumel Thrasher (Toxostoma guttatum), a bird not seen or recorded by scientists for close to a decade and thought by some to have gone extinct, was sighted last month by a team of field biologists, American Bird Conservancy and Conservation International announced today. Its rediscovery immediately makes it the single most threatened bird in Mexico.
The Cozumel Thrasher, an endemic bird found only on t
Very Large Telescope Unravels New Population of Very Old Massive Galaxies
Current theories of the formation of galaxies are based on the hierarchical merging of smaller entities into larger and larger structures, starting from about the size of a stellar globular cluster and ending with clusters of galaxies. According to this scenario, it is assumed that no massive galaxies existed in the young universe.
However, this view may now have to be revised. Using the multi-mode F
The Centre for Stem Cell Biology (CSCB) at the University of Sheffield is welcoming some of the world’s leading experts to its International Human Embryonic Stem Cell Symposium on Friday 9 July 2004. The CSCB is a world-leading centre for stem cell research, and has produced two of the UK’s six embryonic stem cell lines. The symposium will allow around 200 scientists to benefit from the experience of the world’s leading researchers in this area.
Embryonic stem cell technology is a new are
An ultrafine nanometre ’drill’ could be used to make some of the tiniest lenses imaginable and may also allow scientists to harness light for use in optical computers of the future, thanks to research published today.
Scientists from the UK and Spain describe in this week’s Science Express (8 July) how artificial materials with tiny grooves and holes drilled into their surfaces could channel and focus light beams on a chip.
When light hits the surface of a metal such
Current microarray experiments allow the levels of activity of thousands of genes to be measured at once, providing a window into molecular events underlying health and disease. The selection of genes having distinct levels of activity between conditions of interest (such as cancer and non-cancer) has therefore emerged as a key aim of data analysis. However, with typically many thousands of genes to choose from and at most a few dozen sets of measurements available, differential analyses of this kind
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