When WHOI geologist Liviu Giosan first reconstructed the history of how the Danube River built its delta, he was presented with a puzzle.
In the delta’s early stages of development, the river deposited its sediment within a protected bay. As the delta expanded onto the Black Sea shelf in the late Holocene and was exposed to greater waves and currents, rather than seeing the decline in sediment storage that he expected, Giosan found the opposite. The delta continued to grow. In fact, it has tripled its storage rate.(more…)
UCLA researchers have discovered a type of cell that is the “missing link” between bone marrow stem cells and all the cells of the human immune system, a finding that will lead to a greater understanding of how a healthy immune system is produced and how disease can lead to poor immune function.
The research was done using human bone marrow, which contains all the stem cells that produce blood during post-natal life. (more…)
EAST LANSING, Mich. — Witch hunts are common and sometimes deadly in the tea plantations of Jalpaiguri, India. But a surprising source – small groups of women who meet through a government loan program – has achieved some success in preventing the longstanding practice, a Michigan State University sociologist found.
Soma Chaudhuri spent seven months studying witch hunts in her native India and discovered that the economic self-help groups have made it part of their agenda to defend their fellow plantation workers against the hunts. (more…)
The Pink Double Dandy peony, the Double Peppermint petunia, the Doubled Strawberry Vanilla lily and nearly all roses are varieties cultivated for their double flowers.(more…)
The extent of sea ice in the Arctic has reached a record low, according to data released Aug. 26 by the U.S. National Snow and Ice Data Center (NSIDC).(more…)
A UA study has found poverty, water scarcity, food insecurity and interdependence between the United States and Mexico along the border
The U.S.-Mexico border is the border in the world with the greatest disparity in access to food and water needed for human survival, according to a report commissioned and published by the Southwest Center at the University of Arizona.(more…)
Apple’s Share of Smartphone Market Grows to 1 in 3 Subscribers
RESTON, VA, September 4, 2012 – comScore, Inc., a leader in measuring the digital world, today released data from the comScore MobiLensservice, reporting key trends in the U.S. mobile phone industry during the three month average period ending July 2012. The study surveyed more than 30,000 U.S. mobile subscribers and found Samsung to be the top handset manufacturer overall with 25.6 percent market share. Google Android continued to lead among smartphone platforms, accounting for 52.2 percent of smartphone subscribers, while Apple secured 33.4 percent.
OEM Market Share
For the three-month average period ending in July, 234 million Americans age 13 and older used mobile devices. Device manufacturer Samsung ranked as the top OEM with 25.6 percent of U.S. mobile subscribers, followed by LG with 18.4 percent share. Apple continued to gain share in the OEM market, ranking third with 16.3 percent of mobile subscribers (up 1.9 percentage points), followed by Motorola with 11.2 percent and HTC with 6.4 percent (up 0.4 percentage points). (more…)
