For example, among the most mature ideas in the field of computational photography is the idea of extending a camera's "dynamic range," or its ability to handle a wide range of lighting in a single frame. The process of high-dynamic-range imaging is to capture pictures of the same scene with different exposures and then to combine them into a composite image in which every pixel is optimally lit. Until now, this trick could be done only with images in computers. Levoy wants cameras to do this right at the scene, on demand.
BOULDER--Arctic temperatures in the 1990s reached their warmest level of any decade in at least 2,000 years, new research indicates. The study, which incorporates geologic records and computer simulations, provides new evidence that the Arctic would be cooling if not for greenhouse gas emissions that are overpowering natural climate patterns.
Researchers from the Helmholtz-Zentrum Berlin für Materialien und Energie have, in cooperation with colleagues from Dresden, St. Andrews, La Plata and Oxford, for the first time observed magnetic monopoles and how they emerge in a real material. They publish this result in the journal Science within the Science Express web site on Sept. 3.
LINCOLN, NE—Just like the rest of us, golf courses show their age—especially on putting greens, which experience more foot traffic than anywhere else on golf courses. Putting greens, which comprise only about 1.6% of the total area on most courses, require more intensive management than any other part of the course. To keep putting greens in top form, turfgrass experts study ways to provide proper nutrients to the root zone, a critical area for maintaining healthy turf.
Results from the first swine-flu vaccine trials taking place in Leicester reveal a strong immune response after just one dose.
The pilot study, run by the University of Leicester and Leicester Hospitals, was trialled with 100 healthy volunteers, aged between 18 and 50.
Dr Iain Stephenson, who led the trial at the Leicester Royal Infirmary, said: "The clinical trial of Novartis MF59-adjuvanted cell-based A (H1N1) vaccine indicates that the "swine flu" vaccine elicits a strong immune response and is well-tolerated.
When the first cases of H1N1 Influenza (swine flu) were reported in Mexico in April, UQ researchers got to work developing a test to diagnose the virus.
In less than two weeks, Dr David Whiley and a team of five scientists were able to provide Pathology Queensland with two detection methods, one of which was used to diagnose Australia's first swine flu case.
The tests have since been implemented by the Townsville Hospital and Royal Darwin Hospital, and were also used to detect the first case of swine flu in the Northern Territory.
PHOENIX, Ariz. – Sept. 2, 2009 — Analyses of clinical trial results published today in the New England Journal of Medicine (NEJM) shows a potential new investigational therapy for advanced and metastatic basal cell skin cancer.
The study, conducted at TGen Clinical Research Service (TCRS) at Scottsdale Healthcare and two other sites appears to demonstrate tumor shrinkage and limited side effects. TCRS is a strategic alliance between the Translational Genomics Research Institute (TGen) and Scottsdale Healthcare.
In their experiment the scientists tested a completely new principle of cooling. For this, they used the property that atoms can be stimulated by light. In this process an electron changes from its orbit around the atom's nucleus to an orbit that is further away. However, this is only successful if the incoming light has the appropriate colour. Red light has less energy than blue light. Therefore the 'push' which a red laser gives the electron may not be sufficient for lifting it to a higher orbit.
New York University chemists have created three-dimensional DNA structures, bridging the molecular world to the world where we live. The work, reported in the journal Nature, also has a range of potential industrial and pharmaceutical applications, such as the creation of nanoelectronic components and the organization of drug receptor targets to enable illumination of their 3D structures.
Chemists and biologists have successfully demonstrated that specially synthesized boron compounds are readily accepted in biologically active enzymes, a move that, they say, is a proof of concept that could lead to new drug design strategies.
Research published in the Journal of Thoracic Oncology has found that narrow-band imaging bronchoscopy increases the specificity of bronchoscopic early lung cancer detection and can serve as an alternative detection device.
Researchers are developing computer models to comb through thousands of injury reports in large administrative medical datasets or insurance claims data to automatically classify them based on specific words or phrases.
"One goal is to identify the most important causes of injuries so that efforts could be directed toward reducing the burden of injuries in society," said Mark Lehto, an associate professor in Purdue University's School of Industrial Engineering.
An international team of researchers has designed a new graphite-based, magnetic nano-material that acts as a semiconductor and could help material scientists create the next generation of electronic devices like microchips.
The team of researchers from Virginia Commonwealth University; Peking University in Beijing, China; the Chinese Academy of Science in Shanghai, China; and Tohoku University in Sedai, Japan; used theoretical computer modeling to design the new material they called graphone, which is derived from an existing material known as graphene.
Researchers in California are reporting development of a so-called "NanoPen" that could provide a quick, convenient way of laying down patterns of nanoparticles — from wires to circuits — for making futuristic electronic devices, medical diagnostic tests, and other much-anticipated nanotech applications. A report on the device, which helps solve a long-standing challenge in nanotechnology, appeared in ACS' Nano Letters.
Results of the first study evaluating the use of human urine mixed with wood ash as a fertilizer for food crops has found that the combination can be substituted for costly synthetic fertilizers to produce bumper crops of tomatoes without introducing any risk of disease for consumers. The study appears in the current issue of ACS' Journal of Agricultural and Food Chemistry, a bi-weekly publication.