Tree frogs that look similar hear chromosome difference in calls; offers new insight to frog evolution
Columbia, MO – When it comes to love songs, female tree frogs are pretty picky. According to a new study from the University of Missouri, certain female tree frogs may be remarkably attuned to the songs of mates who share the same number of chromosomes as they do. The discovery offers insight into how new frog species may have evolved.(more…)
*One-third of Mobile Subscribers Access Social Networking on Mobile Device*
RESTON, VA, December 29, 2011 – comScore, Inc., a leader in measuring the digital world, today released data from the comScore MobiLens service, reporting key trends in the U.S. mobile phone industry during the three month average period ending November 2011. 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 capture share in the smartphone market to reach 46.9 percent market share.
OEM Market Share
For the three-month average period ending in November, 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 (up 0.3 percentage points), followed by LG with 20.5 percent share and Motorola with 13.7 percent share. Apple strengthened its position at #4 with 11.2 percent share of total mobile subscribers (up 1.4 percentage points), while RIM rounded out the top five with 6.5 percent share. (more…)
PASADENA, Calif. — NASA’s twin spacecraft to study the moon from crust to core are nearing their New Year’s Eve and New Year’s Day main-engine burns to place the duo in lunar orbit.
Named Gravity Recovery And Interior Laboratory (GRAIL), the spacecraft are scheduled to be placed in orbit beginning at 1:21 p.m. PST (4:21 p.m. EST) for GRAIL-A on Dec. 31, and 2:05 p.m. PST (5:05 p.m. EST) for GRAIL-B the next day. (more…)
A North Carolina State University discovery of the unique chemical composition of a cockroach signal – a “Let’s hook up” sex pheromone emitted by certain female wood cockroaches to entice potential mates – could have far-ranging benefits, including improved conservation of an endangered woodpecker.(more…)
*Hi-tech dental instrument uses “cool flame” for sturdier and longer-lasting fillings*
COLUMBIA, Mo. – University of Missouri engineers and their research collaborators at Nanova, Inc. are one step closer to a painless way to replace fillings. After favorable results in the lab, human clinical trials are underway on the “plasma brush.”(more…)
A team of researchers jointly led by Yale University and Columbia University has released a report that introduces a framework for assessing China’s environmental management and performance. This analysis offers the first independent review of Chinese provincial-level environmental performance by international researchers.(more…)
Researchers from North Carolina State University, Sandia National Laboratories, and the University of California, San Diego have developed new technology that uses microneedles to allow doctors to detect real-time chemical changes in the body – and to continuously do so for an extended period of time.
“We’ve loaded the hollow channels within microneedles with electrochemical sensors that can be used to detect specific molecules or pH levels,” says Dr. Roger Narayan, co-author of a paper describing the research, and a professor in the joint biomedical engineering department of NC State’s College of Engineering and the University of North Carolina at Chapel Hill. (more…)
Washington, D.C. — Coral reefs are extremely diverse ecosystems that support enormous biodiversity. But they are at risk. Carbon dioxide emissions are acidifying the ocean, threatening reefs and other marine organisms. New research led by Carnegie’s Kenneth Schneider analyzed the role of sea cucumbers in portions of the Great Barrier Reef and determined that their dietary process of dissolving calcium carbonate (CaCO3) from the surrounding reef accounts for about half of at the total nighttime dissolution for the reef. The work is published December 23 by the Journal of Geophysical Research.
Reefs are formed through the biological deposition of calcium carbonate (CaCO3). Many of the marine organisms living on and around a reef contribute to either its destruction or construction. Therefore it is crucial that the amount of calcium carbonate remain in balance. When this delicate balance is disrupted, the reef ceases to grow and its foundations can be weakened. (more…)
