News Articles

A novel cell division mechanism has been discovered in a microorganism that thrives in hot acid. The finding may also result in insights into key processes in human cells, and in a better understanding of the main evolutionary lineages of life on Earth. The research group at the Department of Molecular Evolution at Uppsala University has identified a completely new cell division machinery. The discovery was made in Sulfolobus acidocaldarius, a microorganism belonging to the third domain of life, the Archaea, which originally was isolated from a hot spring in Yellowstone national park in Wyoming, USA. Because of the extreme conditions, in which the cells grow optimally in acid at 80ºC, the organism is of interest for a wide range of issues.

There's a presidential election happening, in case you didn't know. If you talk to the fringes who are most actively mobilized, they certainly feel the differences are key; if John McCain gets elected, Democrat zealots contend, abortions will be banned and Creationism will be taught in science classes. If Barack Obama is elected, Republican zealots contend, the tax rate will be raised to 100% and gay porn will be taught in science classes.What's surprising is how the average voter believes one rich politician is more likely than another to enact substantial policy changes, on issues like health care and others, that rely more on Congress than they do the Executive branch of government.

Dublin City University (DCU) researchers, Neill Costigan, PhD student at DCU and funded by the Irish Research Council for Science, Engineering and Technology (IRCSET) and Prof Michael Scott member of the Science Foundation Ireland (SFI)-funded Shannon Institute of Cryptography, have successfully cracked a crypto system published thirty years ago by coding theorist Robert J McEliece.The crack which was accomplished using resources at the SFI-Funded Irish Centre for High End Computing was announced at the Post-Quantum Cryptography conference in Cincinnati, USA on Saturday 18 October.

NASA's Mars Reconnaissance Orbiter has observed a new category of minerals spread across large regions of Mars. This discovery suggests that liquid water remained on the planet's surface a billion years later than scientists believed, and it played an important role in shaping the planet's surface and possibly hosting life. Researchers examining data from the orbiter's Compact Reconnaissance Imaging Spectrometer for Mars have found evidence of hydrated silica, commonly known as opal. The hydrated, or water-containing, mineral deposits are telltale signs of where and when water was present on ancient Mars. 

Last winter, the thickness of sea ice in large parts of the Arctic fell by nearly half a metre (19 per cent) compared with the average thickness of the previous five winters. This followed the dramatic 2007 summer low when Arctic ice extent dropped to its lowest level since records began. Up until last winter, the thickness of Arctic sea ice showed a slow downward trend during the previous five winters, but after the summer 2007 record low extent, the thickness of the ice also nose-dived. What is concerning is that sea ice is not just receding but it is also thinning. 

Children and adolescents who abuse alcohol or are sexually active are more likely to take methamphetamines (MA), also known as ‘meth’ or ‘speed’. Research published today in the open access journal BMC Pediatrics reveals the risk factors associated with MA use, in both low-risk children (those who don’t take drugs) and high-risk children (those who have taken other drugs or who have ever attended juvenile detention centres).

Applying electrical stimulation to the scalp and the underlying motor regions of the brain could make you more skilled at delicate tasks. Research published today in the open access journal BMC Neuroscience shows that a non-invasive brain-stimulation technique, transcranial direct current stimulation (tDCS), is able to improve the use of a person’s non-dominant hand. 

Did the Bible's King David and his son Solomon control the copper industry in present-day southern Jordan? The possibility is raised once again by research reported in the Proceedings of the National Academy of Sciences.

Off-label prescription of a drug is generally legal, but promotion of off-label uses by a drug manufacturer is illegal. In an article in this week's PLoS Medicine, two physician researchers describe the techniques that they say drug companies use to covertly promote off-label use, even when such promotion is illegal.Adriane Fugh-Berman (Georgetown University Medical Center) and Douglas Melnick (a preventive medicine physician working in North Hollywood, California) argue that while off-label drug use is "sometimes unavoidable" and sometimes "demonstrably beneficial," it has also been linked with serious side effects. Off-label drug use, they say, "should be undertaken with care and caution due to the uncontrolled experiment to which a patient is being subjected."

Bioniche Life Sciences Inc., a research-based, technology-driven Canadian biopharmaceutical company, today announced that Econiche(TM), the world's first vaccine designed to reduce the shedding by cattle of Escherichia coli (E. coli) O157:H7, has received full licensing approval from the Canadian Food Inspection Agency (CFIA). Econiche is now available for unrestricted use by Canadian cattle producers and their veterinarians.
Econiche is a Canadian discovery developed by Bioniche Life Sciences Inc. The vaccine has the potential to significantly reduce the amount of E. coli O157 shed into the environment by beef and dairy cattle and, in turn, reduce the risk to human health.

The ability to make fire millennia ago was likely a key factor in the migration of prehistoric hominids from Africa into Eurasia, a researcher at the Hebrew University of Jerusalem's Institute of Archaeology believes on the basis of findings at the Gesher Benot Ya'aqov archaeological site in Israel. Earlier excavations there, carried out under the direction of Prof. Naama Goren-Inbar of the Institute of Archaeology, showed that the occupants of the site – who are identified as being part of the Acheulian culture that arose in Africa about 1.6 million years ago -- had mastered fire-making ability as long as 790,000 years ago. This revelation pushed back previously accepted dates for man's fire-making ability by a half-million years. 

Fraunhofer researchers from Stuttgart have developed a new technology that enables the production of energy-autonomous, low-maintenance sensors.   The original application is sensors in air compression systems.  At present, those sensors are either battery-driven or connected by complex wiring. This often makes it very difficult or even impossible to install sensors in places that are hard to reach.The solution; make electricity from air or water in a closed environment - with no movable parts.