COLUMBUS, Ohio – For the first time, researchers have been able to combine different climate models using spatial statistics – to project future seasonal temperature changes in regions across North America.
They performed advanced statistical analysis on two different North American regional climate models and were able to estimate projections of temperature changes for the years 2041 to 2070, as well as the certainty of those projections.
The analysis, developed by statisticians at Ohio State University, examines groups of regional climate models, finds the commonalities between them, and determines how much weight each individual climate projection should get in a consensus climate estimate. (more…)
COLLEGE PARK, Md. — There has been enormous progress in recent years toward the ability to use light beams instead of, or together with, electrons in computers. Now, researchers at the Joint Quantum Institute (JQI) — a University of Maryland-based collaboration between UMD and the National Institutes of Standards and Technology — have developed a light-based switch that is a major advance toward the creation of an optical equivalent of the transistor, the centerpiece of most electronic gear.(more…)
By comparing the testosterone levels of five-month old pairs of twins, both identical and non-identical, University of Montreal researchers were able to establish that testosterone levels in infancy are not inherited genetically but rather determined by environmental factors. “Testosterone is a key hormone for the development of male reproductive organs, and it is also associated with behavioural traits, such as sexual behaviour and aggression,” said lead author Dr. Richard E. Tremblay of the university’s Research Unit on Children’s Psychosocial Maladjustment. “Our study is the largest to be undertaken with newborns, and our results contrast with the findings gained by scientists working with adolescents and adults, indicating that testosterone levels are inherited.” The findings were presented in an article published in Psychoneuroendocrinology on May 7, 2012. (more…)
ANN ARBOR, Mich.— Text messaging is a surprisingly good way to get candid responses to sensitive questions, according to a new study to be presented this week at the annual meeting of the American Association for Public Opinion Research.(more…)
If computers could become ‘smart’ enough to recognize who is talking, that could allow them to produce real-time transcripts of meetings, courtroom proceedings, debates, and other important events. In the dissertation that will allow him to receive his Ph.D. at Commencement this year, Brian Reggiannini found a way to advance the state of the art for voice- and speaker-recognition.
Everyone does signal processing every day, even if we don’t call it that. With friends at a sports bar, we peer up at the TV to see the score, we turn our head toward the crashing sound when a waitress drops a glass, and perhaps most remarkably, we can track the fast-paced banter of all the people in our booth, even if we’ve never met some of the friends-of-friends who have insinuated themselves into the scene.
Very few of us, however, could ever get a computer to do anything like that. That’s why doing it well has earned Brian Reggiannini a Ph.D. at Brown and a career in the industry.
In his dissertation, Reggiannini managed to raise the bar for how well a computer connected to a roomful of microphones can keep track of who among a small group of speakers is talking. Further refined and combined with speech recognition, such a system could lead to instantaneous transcriptions of meetings, courtroom proceedings, or debates among, say, several rude political candidates who are prone to interrupt. It could help the deaf follow conversations in real-time. (more…)
New approach is a promising first step toward the development of tiny devices that harvest electrical energy from everyday tasks
Imagine charging your phone as you walk, thanks to a paper-thin generator embedded in the sole of your shoe. This futuristic scenario is now a little closer to reality. Scientists from the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have developed a way to generate power using harmless viruses that convert mechanical energy into electricity.
The scientists tested their approach by creating a generator that produces enough current to operate a small liquid-crystal display. It works by tapping a finger on a postage stamp-sized electrode coated with specially engineered viruses. The viruses convert the force of the tap into an electric charge. (more…)
Video Ad Delivery Continues to Soar to New Heights, Representing 1 in 5 Videos Viewed
RESTON, VA, May 18, 2012 – comScore, Inc., a leader in measuring the digital world, today released data from the comScore Video Metrix service showing that 181 million U.S. Internet users watched nearly 37 billion online content videos in April. Video ads saw another record-breaking month with nearly 9.5 billion, representing 1 in 5 videos viewed online in April.
Top 10 Video Content Properties by Unique Viewers
Google Sites, driven primarily by video viewing at YouTube.com, ranked as the top online video content property in April with 157.7 million unique viewers, followed by Yahoo! Sites with 53.6 million, VEVO with 49.5 million, Facebook.com with 44.3 million and Microsoft Sites with 42.8 million. Nearly 37 billion video views occurred during the month, with Google Sites generating the highest number at 17 billion, followed by Hulu with 901 million and Yahoo! Sites with 742 million. The average viewer watched 21.8 hours of online video content, with Google Sites (7.2 hours) and Hulu (3.8 hours) earning the highest average engagement among the top ten properties. (more…)
