2,952 research outputs found
Draft Genome Sequence of a Cardiobacterium hominis Strain Isolated from Blood Cultures of a Patient with Infective Endocarditis.
Cardiobacterium hominis is a well-known commensal bacterium of the oral cavity and an agent of infective endocarditis in humans. Here, we provide a draft genome sequence of a pathogenic strain isolated from blood cultures of a patient with infectious endocarditis
Chlamydia pneumoniae: possible association with asthma in children.
Chlamydia pneumoniae: possible association with asthma in childre
Improved timber harvest techniques maintain biodiversity in tropical forests
Tropical forests are selectively logged at 20 times the rate at which they are cleared, and at least a fifth have already been disturbed in this way. In a recent pan-tropical assessment, Burivalova et al. demonstrate the importance of logging intensity as a driver of biodiversity decline in timber estates. Their analyses reveal that species richness of some taxa could decline by 50% at harvest intensities of 38 m3 ha-1. However, they did not consider the extraction techniques that lead to these intensities. Here, we conduct a complementary meta-analysis of assemblage responses to differing logging practices: conventional logging and reduced-impact logging. We show that biodiversity impacts are markedly less severe in forests that utilise reduced-impact logging, compared to those using conventional methods. While supporting the initial findings of Burivalova et al., we go on to demonstrate that best practice forestry techniques curtail the effects of timber extraction regardless of intensity. Therefore, harvest intensities are not always indicative of actual disturbance levels resulting from logging. Accordingly, forest managers and conservationists should advocate practices that offer reduced collateral damage through best practice extraction methods, such as those used in reduced-impact logging. Large-scale implementation of this approach would lead to improved conservation values in the 4 million km2 of tropical forests that are earmarked for timber extraction
SU(3) Predictions of Decays in the Standard Model
With SU(3) symmetry one only needs 13 hadronic parameters to describe decays in the Standard Model. When annihilation contributions are
neglected, only 7 hadronic parameters are needed. These parameters can be
determined from existing experimental data and some unmeasured branching ratios
and CP asymmetries of the type can be predicted. In this talk we
present SU(3) predictions of branching ratios and CP asymmetries for
decays in the Standard Model.Comment: 4 pages, no figure. Talk present at the 5th International Conference
on Hyperons, Charm and Beauty Hadrons, Vancouver, June 200
First ADS analysis of B- -> D0K- decays in hadron collisions
Proceedings of DISCRETE 2010, Symposium on Prospects in the Physics of
Discrete Symmetries, Rome (IT), 6-11 December 2010Comment: 7 pages, 5 figure
Analysis of the as a baryonium state with Bethe-Salpeter equation
In this article, we take the X(1835) as a pseudoscalar baryonium state, and
calculate the mass spectrum of the baryon-antibaryon bound states ,
, , and in the
framework of the Bethe-Salpeter equation with a phenomenological potential. The
numerical results indicate the , and
bound states maybe exist, and the can be tentatively
identified as the bound state.Comment: 7 pages, 1 figure, published versio
The Flora Mission for Ecosystem Composition, Disturbance and Productivity
Global land use and climate variability alter ecosystem conditions - including structure, function, and biological diversity - at a pace that requires unambiguous observations from satellite vantage points. Current global measurements are limited to general land cover, some disturbances, vegetation leaf area index, and canopy energy absorption. Flora is a pathfinding mission that provides new measurements of ecosystem structure, function, and diversity to understand the spatial and temporal dynamics of human and natural disturbances, and the biogeochemical and physiological responses of ecosystems to disturbance. The mission relies upon high-fidelity imaging spectroscopy to deliver full optical spectrum measurements (400-2500 nm) of the global land surface on a monthly time step at 45 meter spatial resolution for three years. The Flora measurement objectives are: (i) fractional cover of biological materials, (ii) canopy water content, (iii) vegetation pigments and light-use efficiency, (iv) plant functional types, (v) fire fuel load and fuel moisture content, and (vi) disturbance occurrence, type and intensity. These measurements are made using a multi-parameter, spectroscopic analysis approach afforded by observation of the full optical spectrum. Combining these measurements, along with additional observations from multispectral sensors, Flora will far advance global studies and models of ecosystem dynamics and change
mixing studies with the decays
We demonstrate how a time-dependent analysis of the decays can be used to determine the mixing parameter
with a precision that is competitive with established methods. The proposed
analysis is an inclusive study which makes use of the measurements of the
coherence factor and mean strong phase difference for these decays recently
performed by CLEO.Comment: 9 pages, 1 figure. Journal reference added. Minor typos fixe
- …