VLT Images Progenitors of Today’s Large Galaxies [1]
An international team of astronomers [2] has made the deepest-evernear-infrared Ks-band image of the sky, using the ISAAC multi-modeinstrument on the 8.2-m VLT ANTU telescope.
For this, the VLT was pointed for more than 100 hours under optimalobserving conditions at the Hubble Deep Field South (HDF-S) andobtained images in three near-infrared filters. The resulting imagesreveal extremely distant galaxies, which appear at
Developed at MGH, digital tomosynthesis may better identify malignant lesions
A new approach to mammography, developed by researchers at Massachusetts General Hospital (MGH), holds the potential for greatly improving the detection of breast lesions and the ability to predict whether they are benign or malignant. In a presentation earlier this month at the scientific assembly of the Radiological Society of North America (RSNA), Elizabeth Rafferty, MD, of the MGH Breast Imaging Service
Through precise control of the etching process, an inventor in Oxford University’s Photofabrication Unit has made the reliable production of High Resolution Printed Circuit Boards (PCBs) with conductors down to 10 µm wide more of a cost-effective reality.
With increasing demands for greater miniaturisation and the use of flexible circuitry, the need for improved fabrication methods for high resolution printed circuit boards is becoming more important. PCBs currently include conductors with
Results of a 2 ½ year study led by doctors at Dartmouth-Hitchcock Medical Center could have implications for the nations decreasing blood supply.
In an article published in the December 11 issue of the Journal of the American Medical Association (JAMA), Drs. Howard L Corwin and Andrew Gettinger describe the effects of administering recombinant human erythropoietin (rHuEPO) to critically ill patients. Significantly, they found that use of the hormone, which stimulates red blood
Biodiversity worldwide may be decreasing, but at smaller scales it is increasing or at least changing in composition, suggesting the need for a dramatic shift in the current focus of ecological research. These changes may undermine the functioning of local ecosystems, according to an article in Decembers American Naturalist.
The authors –– Dov F. Sax, assistant research scientist at the University of California, Santa Barbara; Steven D. Gaines, director of the Marine Science Institute and a
The problem is intensive agriculture. Nowadays, some farmers have too many heads of cattle in comparison with their land under tillage. Due to this, purines (manure and stable/barn droppings) are applied in high concentrations on these soils, above all on those around the barns. Also, in order to feed the land which is further afield, farmers buy mineral feeds. Great problems for the environment arise out of the application of high quantities of mineral fertilisers and purines.
The Departmen