Burden of disease and economic impact of human Streptococcus suis infection in Viet Nam

Contains fulltext : 206045.pdf (publisher's version ) (Open Access

Tuberculosis Acquired Outside of Households, Rural Vietnam

Using population-based data from rural Vietnam, we assessed tuberculosis (TB) transmission within and outside of households. Eighty-three percent of persons with recent household TB were infected by different strains of Mycobacterium tuberculosis than were their household members. This result argues against the effectiveness of active TB case finding among household members

A taxonomy of information-centric networking architectures based on data routing and name resolution approaches

This study presents a vast coverage of current Information-Centric Network (ICN) submission by evaluating eight distinct and popular routing and name resolution approaches.Internet build-up and initial deposition were based on a host-driven approach.With the increasing demands for mediadriven data flooding the cost of the Internet, a new semantic and paradigm shift was envisioned known as ICN.Information Centrism is an approach that partly dissociates the host dependencies by referring to contents by unique identifiers called name.However, to benefit from the content network, forwarding, naming and routing, among other issues are still in its developmental stages.The taxonomy serves as a basis for research directions, challenges, implementation and future studies for standardizing the ICN routing and naming. Routing and Name Resolution were themed in categories of strategies, contributions, issues and drawbacks. The major findings of this paper are providing a classification and review of the data routing and name resolutions approaches that are proposed on eight ICN architectures; presenting drawback areas in the selected architectures; and finally highlighting some challenges of ICN routing for the ICN research community vending

Equation of state and thermodynamic properties of BCC metals

The moment method in statistical dynamics is used to study the equation of state and thermodynamic properties of the bcc metals taking into account the anharmonicity effects of the lattice vibrations and hydrostatic pressures. The explicit expressions of the lattice constant, thermal expansion  oefficient, and the specific heats of the bcc metals are derived within the fourth order moment approximation. The termodynamic quantities of W, Nb, Fe,and Ta metals are calculated as a function of the pressure, and they are in good agreement with the corresponding results obtained from the first principles calculations and experimental results. The effective pair potentials work well for the calculations of bcc metals

Transmission of white spot syndrome virus in improved-extensive and semi-intensive shrimp production systems: A molecular epidemiology study

Experimental evidence suggests that white spot syndrome virus (WSSV) can be transmitted horizontally through water, via carrier organisms and/or by cannibalism of infected shrimp, but also vertically through infected broodstock. However the mode(s) of WSSV transmission in shrimp farming systems and the epidemiological consequences are not well understood. In this study, molecular markers have been used to analyse the spread of WSSV within and between farms in Viet Nam for two different farming systems: improved-extensive and semi-intensive. Samples were periodically obtained from twenty improved-extensive shrimp ponds and twenty-three semi-intensive shrimp ponds applying different sampling schemes. PCR-genotyping was employed using three WSSV molecular marker loci: the variable tandem repeat regions (VNTR) in ORF75, ORF94 and ORF125 (GenBank AF369029). An analysis on the combined results of all three VNTR marker loci made it possible to follow transmission pathways of WSSV in the respective shrimp farming systems. The transmission of WSSV infection on improved extensive shrimp farms appeared mainly due to the recycling of WSSV over time in the same pond, whereas in semi-intensive shrimp farms transmission of WSSV was mainly from neighbouring ponds. These findings provide important information for field applications by suggesting pathway-specific control strategie

Quantitative bacteriology of Typhoid fever in Vietnam

[no abstract available