First Ground-Based Mid-Infrared Observations of Brown Dwarfs [1]
A team of European astronomers [2] have observed eight Brown Dwarfs, i.e., small and faint objects also known as “failed stars”, with the TIMMI2 infrared sensitive instrument at the ESO 3.6-m telescope on La Silla.
From two of these, mid-infrared radiation is detected – for the first time ever from such objects with a ground-based telescope. While the younger Brown Dwarf, aged a few million years, is found
R&D strongest in companies that hire CEOs who are young, have background in marketing, science, R&D, says O.R. study
Research and Development spending to generate innovative new products is strongest at corporations whose CEOs are younger, invest heavily in their own firms stock, and have experience in marketing, engineering, or R&D, according to a study in a journal of the Institute for Operations Research and the Management Sciences (INFORMS®).
In contras
Although they have persisted for tens of millions of years, neotropical lowland forests have changed greatly in extent and composition due to climatic variation and to human impacts. In a symposium at the 2002 meetings of the Association for Tropical Biology, hosted by the Smithsonian Tropical Research Institute (STRI), Panama, scientists presented the latest results of research on neotropical forests and their transformations up to the time of Columbus.
Bruce MacFadden, of the University o
More Internet information means more disinformation,warns a Dartmouth engineering professor
Why is the stock market fluctuating wildly these days? Is it poor earnings reports? Is it questionable accounting practices or CEO inefficiency? Or do investors trade frantically after theyve read something on the Internet? If an investor reads a seemingly authoritative report about a companys performance, he or she might be influenced to buy or sell stock.
Sometimes what
While extreme obesity has been associated with heart failure, until now, data have been limited regarding the influence of overweight and lesser degrees of obesity on the risk of this disease. According to a new study supported by the National Heart, Lung, and Blood Institute (NHLBI), excess body weight is strongly and independently associated with an increased risk of heart failure. This risk, which increases continuously with increasing degrees of body weight, is 34 percent higher for overweight in
An unusual combination of oceanic and atmospheric events may be to blame for a mysterious and sudden die-off of numerous crabs, fish and invertebrate animals off the central Oregon coast during the past two weeks.
Oregon State University researchers who are studying near-shore ecosystems say extremely low oxygen levels – especially in the lower water column – appear to be the culprit.
“Though we are just beginning to amass the evidence, it appears that there has been a confluence o