New study challenges theory of upward mobility in developing nations
Donald Bogue, professor emeritus in sociology and a distinguished scholar of demography, has found that unlike immigrants to the United States, immigrants between nations in Latin America frequently do not improve their lives by moving. (more…)
*Commercial production will allow scientists, academia opportunity for use in cancer studies*
COLUMBIA, Mo. – Early detection of melanoma, the most aggressive skin cancer, is critical because melanoma will spread rapidly throughout the body. Now, University of Missouri researchers are one step closer to melanoma cancer detection at the cellular level, long before tumors have a chance to form. Commercial production of a device that measures melanoma using photoacoustics, or laser-induced ultrasound, will soon be available to scientists and academia for cancer studies. The commercial device also will be tested in clinical trials to provide the data required to obtain U.S. Food and Drug Administration approval for early diagnosis of metastatic melanoma and other cancers. (more…)
*Ecological changes from lakebed may have led to two different populations of once-related steelhead trout*
A catastrophic landslide 22,500 years ago dammed the upper reaches of northern California’s Eel River, forming a 30-mile-long lake which has since disappeared. It left a living legacy found today in the genes of the region’s steelhead trout.
Using remote-sensing technology known as airborne Light Detection and Ranging (LiDAR) and hand-held global-positioning-systems (GPS) units, scientists recently found evidence for a late Pleistocene, landslide-dammed lake along the river. (more…)
