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News | Archive (April 2008)
Several new species discovered in Brazil
— 30 Apr 2008 | BiologyResearchers discovered a legless lizard and a tiny woodpecker along with 12 other suspected new species in Brazil's Cerrado, one of the world's 34 biodiversity conservation hotspots. The Cerrado's wooded grassland once covered an area half the size of Europe, but is now being converted to cropland and ranchland at twice the rate of the neighbouring Amazon rainforest, resulting in the loss of native vegetation and unique species…
Researchers uncover link between osteoporosis drugs and jaw infection
— 30 Apr 2008 | HealthA group of University of Southern California School of Dentistry researchers says it has identified the slimy culprits killing the jawbones of some people taking drugs that treat osteoporosis…
Too much technology may be killing beneficial bacteria
— 30 Apr 2008 | EnvironmentToo much of a good thing could be harmful to the environment. For years, scientists have known about silver's ability to kill harmful bacteria and, recently, have used this knowledge to create consumer products containing silver nanoparticles. Now, a University of Missouri researcher has found that silver nanoparticles also may destroy benign bacteria that are used to remove ammonia from wastewater treatment systems…
Thyrotropin levels may be associated with coronary heart disease mortality in women
— 30 Apr 2008 | HealthWomen with increasing levels of thyrotropin within the normal range appear to have a higher risk of fatal coronary heart disease, according to a report in the 28 April issue of Archives of Internal Medicine, one of the JAMA/Archives journals…
Synergistic growth inhibitory effect of herbal extracts against HCC and lung cancer cells
— 30 Apr 2008 | HealthSeveral herbs with diversified pharmacological properties are known to be rich sources of chemical constituents that may have potential for the treatment of several human cancers. Data from the Department of Preclinical Science, Faculty of Medicine, Thammasat University, demonstrates that the growth inhibitory activity of doxorubicin or cisplatin, as single agents, may be modified in combination with emblic myrobalan or belleric myrobalan extracts and may be synergistically enhanced in some cases…
Researchers head to warming Alaska on ice core expedition
— 29 Apr 2008 | EnvironmentThe state of Alaska has the dubious distinction of leading the lower 48 in the effects of a warming climate. Small villages are slipping into the sea due to coastal erosion, soggy permafrost is cracking buildings and trapping trucks…
Copper nanowires grown by new process create long-lasting displays
— 29 Apr 2008 | TechnologyA new low-temperature, catalyst-free technique for growing copper nanowires has been developed by researchers at the University of Illinois. The copper nanowires could serve as interconnects in electronic device fabrication and as electron emitters in a television-like, very thin flat-panel display known as a field-emission display…
Safe water? Lessons from Kazakhstan
— 29 Apr 2008 | HealthDespite significant efforts to improve access to safe water and sanitation, a new report co-authored by an expert at The University of Nottingham, argues that much more needs to be done…
Research identifies factors leading to hospital admission for heart failure
— 29 Apr 2008 | HealthNearly two out of three patients have one or more precipitating factors that may contribute to hospital admissions nationwide for heart failure, according to a new UCLA study. Pneumonia, irregular heart beats, and obstructed blood flow to the heart are the most frequent factors…
Apple updates iMac line with faster processors
— 28 Apr 2008 | TechnologyApple today updated its all-in-one iMac(R) line with the latest Intel Core 2 Duo processors and the most powerful graphics ever available in an iMac. With prices starting at just $1,199, iMac includes faster processors with 6MB L2 cache and a faster 1066 MHz front-side bus across the entire line, and 2GB of memory standard in most models…
Mass extinction of large prehistoric animals - a result of human hunting
Hubble telescope unveils colourful star birth region on 100 000th orbit milestone