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Science News Archive September 2012 - Page 19


Page 19 of 27

Aussie wasp on the hunt for redback spiders

Researchers have discovered a small wasp that hunts and paralyses redback spiders, reducing their population. The Agenioideus nigricornis wasp, previously forgotten for over 200 years, is widespread across Australia and plays a crucial role in controlling the redback spider population.

SourceUniversity of Adelaide·JournalAustralian Journal of Entomology·DateSep 11, 2012

Moffitt researchers say race affect likelihood of finding suitable stem cell donor

Researchers at Moffitt Cancer Center found that racial disparities impact the likelihood of finding suitable stem cell donors for non-Caucasian patients. The study revealed greater difficulty in matching donors for African-Americans, Hispanics, and Native Americans, with limited access to unrelated donor HCT.

SourceH. Lee Moffitt Cancer Center & Research Institute·JournalBone Marrow Transplantation·DateSep 11, 2012

Scripps Research scientists devise powerful new method for finding therapeutic antibodies

Scripps Research scientists have devised a powerful new technique to discover and expand the power of large numbers of antibodies, immune system proteins that detect and destroy invaders. The method rapidly identifies antibodies with useful biological activity, enabling the creation of unusual antibodies with desired effects.

SourceScripps Research Institute·JournalProceedings of the National Academy of Sciences·DateSep 11, 2012

What are the effects of the Great Recession on local governments?

The Great Recession has brought severe challenges to city and county governments, with budget shortfalls cited as a top problem by nearly half of surveyed local governments. Local government managers have responded by freezing positions, trimming benefits, and reducing service delivery levels.

SourceSAGE·JournalState and Local Government Review·DateSep 11, 2012

Screening technique uncovers 5 new plant activator compounds

The new screening technique uncovers five novel immune-priming compounds in Arabidopsis plants that protect crops without impacting growth or yield. These compounds work by inhibiting enzymes that inactivate defense hormone salicylic acid, leading to enhanced disease resistance.

SourceRIKEN·JournalThe Plant Cell·DateSep 11, 2012

Psychopathic boldness tied to US presidential success

An analysis of 42 US presidents suggests that fearless dominance, a trait associated with psychopathy, may be an important predictor of presidential performance. This study found correlations between boldness and higher ratings for leadership, persuasiveness, crisis management, and Congressional relations.

SourceEmory Health Sciences·JournalJournal of Personality and Social Psychology·DateSep 10, 2012

Fighting Alzheimer's before its onset

A Concordia University study has found that adults with mild cognitive impairment (MCI) are impaired in several aspects of executive functioning, particularly inhibitory control. The researchers hope their work will lead to the development of more reliable tools for detecting Alzheimer's disease at an earlier stage.

SourceConcordia University·JournalJournal of the International Neuropsychological Society·DateSep 10, 2012

The problem of impatient patients

A computer model developed by researchers can help healthcare clinics manage no-shows and last-minute cancellations by incorporating overbooking into the system. This approach has been shown to increase efficiency, bringing it back up to around 73% in some cases.

SourceInderscience Publishers·JournalInternational Journal of Engineering Management and Economics·DateSep 10, 2012

Study demonstrates that placebo response occurs at nonconscious level

Researchers identified a novel mechanism that explains the power of placebos and nocebos, demonstrating the unconscious mind plays a key role in pain experiences. Studies showed that patients can show clinical improvement even when receiving treatments devoid of active ingredients or known therapeutic efficacy.

SourceBeth Israel Deaconess Medical Center·JournalProceedings of the National Academy of Sciences·DateSep 10, 2012

Prototype represents a step toward enhanced soft-tissue tomography

A novel CT scanner with grating-based x-ray phase contrast technology demonstrates improved soft tissue visibility in preclinical research. The technology, developed by a German-Swedish-Belgian team, has the potential to revolutionize biomedical imaging and could lead to medical CT scanning applications in the future.

SourceTechnical University of Munich (TUM)·JournalProceedings of the National Academy of Sciences·DateSep 10, 2012

Perfecting email security

Researchers have defined perfect forward secrecy for email, which prevents decryption even if a sender's private key is compromised. The new protocol uses a technique that creates a unique session hash for each message, ensuring that emails remain confidential and secure.

SourceInderscience Publishers·JournalInternational Journal of Security and Networks·DateSep 10, 2012

Improved diagnostic test benefits children with acute myeloid leukemia

A new diagnostic test has been identified as the most effective method for measuring treatment response in young patients with acute myeloid leukemia, which could lead to a higher cure rate. The test uses flow cytometry to identify minimal residual disease in patient bone marrow, allowing for more intensive therapy to be guided.

SourceSt. Jude Children's Research Hospital·JournalJournal of Clinical Oncology·DateSep 10, 2012