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Pitch, Voice Quality And Formant Spacing Jointly Signal Body Size And Determine Human Vocal Attractiveness
Date: Apr-26-2013Deep male voices and high-pitched female voices are perceived as more attractive because listeners gauge the speaker's body size from the frequency of their voice, according to research published in the open access journal PLOS ONE by Yi Xu from University College London (UK) and colleagues. Studies of animals and birds reveal that listeners can perceive a caller's body size and intension based on the frequency, voice quality and formant spacing of a call...
Australia Protected By Biogeographic Barrier From Avian Flu But Not From Nipah Virus
Date: Apr-26-2013An invisible barrier separates land animals in Australia from those in south-east Asia may also restrict the spillover of animal-borne diseases like avian flu, but researchers have found that fruit bats on either side of this line can carry Nipah virus, a pathogen that causes severe human disease. The findings are published in the open access journal PLOS ONE by Andrew Breed from the University of Queensland, Australia and colleagues from other institutions...
New Genre Of Antibodies Offer Hope In The Fight Against Antibiotic-Resistant Bacteria
Date: Apr-26-2013In an advance toward coping with bacteria that shrug off existing antibiotics and sterilization methods, scientists are reporting development of a new family of selective antimicrobial agents that do not rely on traditional antibiotics. Their report on these synthetic colloid particles, which can be custom-designed to recognize the shape of specific kinds of bacteria and inactivate them, appears in the Journal of the American Chemical Society. Vesselin Paunov and colleagues point out that many bacteria have developed resistance to existing antibiotics...
New Research Findings On The Brain's Guardian Cells
Date: Apr-26-2013Researcher Johan Jakobsson and his colleagues have now published their results in Nature Communications. "At present, researchers know very little about exactly how microglia work. At the same time, there is a lot of curiosity and high hopes among brain researchers that greater understanding of microglia could lead to entirely new drug development strategies for various brain diseases", says Johan Jakobsson, research group leader at the Division of Molecular Neurogenetics at Lund University...
Potential Health Risk Posed By Microscopic Dust Particles Found In Underground Railways
Date: Apr-26-2013New research from the University of Southampton has found that working or travelling on an underground railway for a sustained period of time could have health implications. Previously published work suggests that working in environments such as steel mills or welding plants, which are rich in airborne metals, like iron, copper and nickel, can have damaging effects on health. However, little research has been done on the effects of working in an underground railway environment - a similarly metal-rich environment - and results of studies that have been conducted are often inconclusive...
Significant First Step In The Design Of A Multivalent Vaccine Against Several Autism-Related Gut Bacteria
Date: Apr-26-2013A first-ever vaccine created by University of Guelph researchers for gut bacteria common in autistic children may also help control some autism symptoms. The groundbreaking study by Brittany Pequegnat and Guelph chemistry professor Mario Monteiro appears this month in the journal Vaccine. They developed a carbohydrate-based vaccine against the gut bug Clostridium bolteae. C. bolteae is known to play a role in gastrointestinal disorders, and it often shows up in higher numbers in the GI tracts of autistic children than in those of healthy kids...
Molecular Changes Akin To Alzheimer's Discovered In Brain Following Mild Blast Injury
Date: Apr-26-2013A multicenter study led by scientists at the University of Pittsburgh School of Medicine shows that mild traumatic brain injury after blast exposure produces inflammation, oxidative stress and gene activation patterns akin to disorders of memory processing such as Alzheimer's disease. Their findings were recently reported in the online version of the Journal of Neurotrauma. Blast-induced traumatic brain injury (TBI) has become an important issue in combat casualty care, said senior investigator Patrick Kochanek, M.D...
DNA Sequenced From Ancient Skeletons Sheds Light On How Modern European Populations Formed
Date: Apr-26-2013Huddersfield scientist helps to reveal a link in the evolutionary chain An international team of scientists, including Dr Paul Brotherton from the University of Huddersfield, reveal that events after the initial migration of farmers into Europe had a major impact on the modern gene pool. The paper, published in Nature Communications, investigates a major component of the maternal population history of modern Europeans by focusing on haplogroup H mitochondrial genomes from ancient human remains...
Studies Show Encouraging Data In A Wide Range Of HCV Patient Populations
Date: Apr-26-2013New data from a number of clinical trials presented for the first time at the International Liver Congress™ 2013 demonstrate encouraging results in the use of new direct-acting antiviral agents (DAAs) for the treatment of hepatitis C. The following covers key results from the much anticipated Phase III trials conducted among HCV patients with a range of genotypes (GT 1 to 6) on DAA treatment...
Microbes Inhaled On The New York City Subway
Date: Apr-26-2013The microbial population in the air of the New York City subway system is nearly identical to that of ambient air on the city streets. This research, published ahead of print in the journal Applied and Environmental Microbiology, establishes an important baseline, should it become necessary to monitor the subway's air for dispersal of potentially dangerous microbes. Also, the combination of new methodologies in the study, including fast collection of aerosols and rapid sequencing technology, provide an efficient means for monitoring which was not previously available...
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