A researcher at the National University in San Diego has taken a mathematical approach to a biological problem - how to design a portable DNA detector. Samuel Afuwape, Applied Engineering professor, describes a mathematical simulation to show how a new type of nanoscale transistor might be coupled to a DNA sensor system to produce a characteristic signal for specific DNA fragments in a sample.

Afuwape explains that a portable DNA sequencer could make life easier for environmental scientists testing contaminated sites. Clinicians and medical researchers too could use it to diagnose genetic disorders and study problems in genetics. Such a sensor might also be used to spot the weapons of the bioterrorist or in criminal forensic investigations.

The growth in China's carbon dioxide (CO2) emissions is far outpacing previous estimates, making the goal of stabilizing atmospheric greenhouse gases much more difficult, according to a new analysis by economists at the University of California, Berkeley, and UC San Diego.

Previous estimates, including those used by the Intergovernmental Panel on Climate Change, say the region that includes China will see a 2.5 to 5 percent annual increase in CO2 emissions, the largest contributor to atmospheric greenhouse gases, between 2004 and 2010. The new UC analysis puts that annual growth rate for China to at least 11 percent for the same time period.

An international group of researchers has found evidence for the earliest transport use of the donkey and the early phases of donkey domestication, suggesting the process of domestication may have been slower and less linear than previously thought.

Based on a study of 10 donkey skeletons from three graves dedicated to donkeys in the funerary complex of one of the first Pharaoh's at Abydos, Egypt, the team, led by Fiona Marshall, Ph.D., professor of Anthropology at Washington University in St. Louis, and Stine Rossel of the University of Copenhagen, found that donkeys around 5,000 years ago were in an early phase of domestication. They looked like wild animals but displayed joint wear that showed that they were used as domestic animals.

LONDON, March 11 /PRNewswire/ --

A quarter (23 per cent) of all smokers have cut down since the introduction of smoke-free legislation and millions more plan to quit altogether, new research suggests.

The study shows almost one in five smokers plans to stop tomorrow on No Smoking Day (12 March), with the ban proving a key factor in triggering quit attempts.

Conducted by YouGov to mark the 25th annual No Smoking Day event, the research indicates over 2.25 million people will take part, making it the biggest No Smoking Day for years.

At the end of "Back To The Future", Doc shows up wearing futuristic clothes and possessing a swanky new addition to his DeLorean - a "Mr. Fusion" device so that he no longer required the Plutonium that caused all of the problems with the terrorists. He just threw in potato peels and a beer can (pouring in the beer first, for reasons that were scientifically unclear) and off they went.

It may not be fusion, but it's possible to turn garbage into fuel, say University of Maryland researchers. They started with bacteria from the Chesapeake Bay and came up with a process that may be able to convert large volumes of all kinds of plant products, from leftover brewer’s mash to paper trash, into ethanol and other biofuel alternatives to gasoline.

OAKLAND, California, March 10 /PRNewswire/ --

The nation's largest organization of registered nurses today denounced what it called undemocratic sham union elections scheduled this week at nine hospitals in Cincinnati, Springfield, and Lima.

The hospitals are part of the Catholic Healthcare Partners chain which petitioned for a federal labor board election following a secret deal with the Service Employees International Union that would impose SEIU as the company's hand-picked union for 8,000 RNs and other hospital employees.

Since the reporting of the so-called “hobbit” fossil from the island of Flores in Indonesia, debate has raged as to whether these remains are of modern humans (Homo sapiens), reduced, for some reason, in stature, or whether they represent a new species, Homo floresiensis.

In a study funded by the National Geographic Society Mission Programs, Lee Berger and colleagues from the University of the Witwatersrand, Rutgers University and Duke University, describe the fossils of small-bodied humans from the Micronesian island of Palau. These people inhabited the island between 1400 and 3000 years ago and share some – although not all – features with the H.

The universe as we currently know it is made up of three physical dimensions of space and a relative one of time, but researchers in the Department of Physics and the Department of Electrical and Computer Engineering at Virginia Tech are exploring the possibility of an extra dimension.

“The idea we’re exploring is that the universe has an imperceptibly small dimension (about one billionth of a nanometer) in addition to the four that we know currently,” Kavic said. “This extra dimension would be curled up, in a state similar to that of the entire universe at the time of the Big Bang.”

The group is looking for small primordial black holes that, when they explode, may produce a radio pulse that could be detected here on Earth. These black holes are called primordial because they were created a fraction of a second after the beginning of the universe.

ABU DHABI, UAE, March 10 /PRNewswire/ --

- TAQA to Announce FY'07 Results on 17 March, 2008

- Conference Call Details Below

The Abu Dhabi National Energy Company PJSC, a publicly listed company on the Abu Dhabi Securities Market (ADSM: TAQA), announced today that it will release its Full Year 2007 Financial Results for the period to 31 December 2007 before market open on Monday, 17 March, 2008. In conjunction with the financial results release there is a scheduled conference call at 16:30 hrs (UAE time) on Monday, 17 March, 2008.

The conference call will be hosted by the Company's Chief Executive Officer, Mr. Peter E. Barker Homek, and Chief Financial Officer, Doug Fraser.

Announcement: TAQA Full Year 2007 Financial Results Conference Call

NEW YORK, March 10 /PRNewswire/ --

SunGard (http://www.sungard.com) today announced that it has acquired the corporate payments division of Payformance Corporation (http://www.payformance.com), a Jacksonville, Florida based company that provides payment processing solutions for corporations and health care organizations. The acquisition, the terms of which were not disclosed, is not expected to have a material impact on SunGard's financial results.