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News | Archive (27 January 2011)
Princess Margaret Hospital researchers identify a key enzyme that affects radiation response
— 19:20 GMT | HealthCancer researchers at Princess Margaret Hospital (PMH) have discovered that targeting an enzyme called Uroporphyrinogen Decarboxylase (UROD) can sensitise diseased tissue to radiation and chemotherapy, which could mean fewer side effects for individuals with head and neck cancer…
Mount Sinai researchers identify potential therapeutic target for improving long-term memory
— 19:17 GMT | HealthResearchers from Mount Sinai School of Medicine have identified a therapy that may enhance memory and prevent the loss of long-term memory. The research is published in the January 27th issue of Nature…
How spring-loaded filaree seeds self launch
— 19:14 GMT | BiologyEven by invading plants' standards, the filaree, or common stork's bill, has been remarkably successful. Introduced into North America in the eighteenth century, it is now endemic in south-western states such as California, and the plant's intriguing seed dispersal mechanism seems to lie at the root of their success. Having launched as far as possible from the mother plant, the seed drills itself into the ground by repeatedly curling and unwinding a strap-like structure, known as an awn, to give it the best chance to germinate. But how do they self-drill?…
The cryptic African wolf: Canis aureus lupaster is not a golden jackal
— 19:11 GMT | BiologyNew molecular evidence reveals a new species of grey wolf living in Africa. Formerly confused with golden jackals, and thought to be an Egyptian subspecies of jackal, the new African wolf shows that members of the grey wolf lineage reached Africa about 3 million years ago, before they spread throughout the northern hemisphere…
Racial stereotyping found in US death certificates
— 19:08 GMT | HealthDeath by homicide, the victim is probably black. By cirrhosis, the decedent is likely Native American. These stereotypes have small but clear effects on the racial classifications used to calculate official vital statistics, according to a new study by sociologists at the University of Oregon and University of California, Irvine…
Eating poorly can make us depressed
— 19:05 GMT | HealthResearchers from the universities of Navarra and Las Palmas de Gran Canaria have demonstrated that the ingestion of trans-fats and saturated fats increase the risk of suffering depression, and that olive oil, on the other hand, protects against this mental illness…
Gender and hygiene: Could cleanliness be hurting girls?
— 19:02 GMT | HealthLittle girls growing up in western society are expected to be neat and tidy - 'all ribbon and curls' - and one researcher who studies science and gender differences thinks that emphasis may contribute to higher rates of certain diseases in adult women…
Making a point
— 18:59 GMT | TechnologyNorthwestern University researchers have developed a new technique for rapidly prototyping nanoscale devices and structures that is so inexpensive the 'print head' can be thrown away when done…
Little-known growth factor enhances memory, prevents forgetting in rats
— 18:56 GMT | HealthA naturally occurring growth factor significantly boosted retention and prevented forgetting of a fear memory when injected into rats' memory circuitry during time-limited windows when memories become fragile and changeable. In the study funded by the National Institutes of Health, animals treated with insulin-like growth factor (IGF-II) excelled at remembering to avoid a location where they had previously experienced a mild shock…
Shockable cardiac arrests are more common in public than home
— 18:53 GMT | HealthCardiac arrests that can be treated by electric stimulation, also known as shockable arrests, were found at a higher frequency in public settings than in the home, according to a National Institutes of Health-funded study appearing in the Jan. 27 issue of the New England Journal of Medicine…
Scientists describe new species of water mite using confocal microscopy
Quasars' accretion disks reveal their true colours