Results 51 to 60 of about 577,400 (301)
Sex allocation theory reveals a hidden cost of neonicotinoid exposure in a parasitoid wasp [PDF]
, 2015 P.R.W. was funded by the University of Stirling, C.V.B. and S.M.G. were funded by Nuffield Research Placements and N.C., J.G. and D.M.S. were funded by NERC (NE/J024481/1).Sex allocation theory has proved to be one the most successful theories in ...
Blackburn, Charlotte V. +6 more
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Fitness costs of resistance to antimalarial drugs
Trends in Parasitology, 2008 It has been recently reported that the prevalence of mutations associated with chloroquine resistance declined during the dry season. Fitness costs of drug resistance were suggested to be responsible for reduced survival of mutant parasites, and only parasites surviving chronic infections were transmitted at the onset of the rainy season.
Felger Ingrid, Beck Hans-Peter
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Cost Effectiveness of Two Army Physical Fitness Programs [PDF]
Military Medicine, 2013 Repeated failure in the Army Physical Fitness Test (APFT) is associated with lower fitness level, premature discharge, and significant career disruption, at high economic and health costs to the individual soldier and the U.S. Army. We used cost-effectiveness analysis to estimate the health and economic implications of two exercise interventions for ...
Laura A, Talbot +4 more
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Fitness costs of CRISPR-Cas systems in bacteria
Microbiology, 2022 CRISPR-Cas systems provide bacteria with both specificity and adaptability in defence against invading genetic elements. From a theoretical perspective, CRISPR-Cas systems confer many benefits. However, they are observed at an unexpectedly low prevalence across the bacterial domain.
Michael Zaayman, Rachel M. Wheatley
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Frontiers in Microbiology, 2022 Pseudomonas aeruginosa (P. aeruginosa), a common cause of severe chronic infections, has developed heteroresistance to several antibiotics, thus hindering successful treatment.
Wen-Ru Li +7 more
doaj +1 more source
The Cost of Laboratory Fittings [PDF]
Nature, 1920 IN all directions we have at the present time evidence of a growing enthusiasm for education in the field of natural science. Students are being turned away from our schools and universities for lack of accommodation, and the new Education Act has given great encouragement to science teaching.
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Environmentally induced development costs underlie fitness tradeoffs
Ecology, 2018 AbstractLocal adaptation can lead to genotype‐by‐environment interactions, which can create fitness tradeoffs in alternative environments, and govern the distribution of biodiversity across geographic landscapes. Exploring the ecological circumstances that promote the evolution of fitness tradeoffs requires identifying how natural selection operates ...
Walter, GM +4 more
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In-vivo mutation rates and fitness landscape of HIV-1
, 2016 Mutation rates and fitness costs of deleterious mutations are difficult to measure in vivo but essential for a quantitative understanding of evolution. Using whole genome deep sequencing data from longitudinal samples during untreated HIV-1 infection, we
Albert, Jan +4 more
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Frontiers in Veterinary Science, 2022 Macrolides are widely used in diseases caused by Mycoplasma spp. The new semi-synthetic macrolide antibiotic tulathromycin is currently in wide use for the treatment of respiratory diseases of livestock.
Xirui Xia +4 more
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Predicting bacterial fitness cost associated with drug resistance [PDF]
Journal of Antimicrobial Chemotherapy, 2012 It has been proposed that antimicrobial resistance could be associated with a fitness cost in bacteria, which is often determined by competition experiments between isogenic strains (wild-type and mutant). However, this conventional approach is time consuming and labour intensive.
Beining, Guo +4 more
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