* This chapter represents the conclusions of a meeting of experts organised by WHO in cooperation with the US EPA and held in Annapolis, MD, USA, in November 1998 (for further details, see the Acknowledgements section). The US EPA has not conducted a policy and legal evaluation of this chapter. Despite evident successes in the protection of public health, present approaches to the regulation of...

The representation of vector data at variable scales has been widely applied in geographic information systems and map-based services. When the scale changes across a wide range, a complex generalization that involves multiple operations is required to transform the data. To present such complex generalization, we proposed a matrix model to combine different generalization operations into an in...

at raisinig in every possible xaxy the standard of serxvice to the patient through the region, an(l to encourage and(i initiate researchl on the detection, prevention, treatment of disease. It would seem that a great step forward has been made in the attempt to all types of hospital working harmoniousl) together, and with goodwill and operation many of the hospital problems which have been refe...

An important dimension of poverty is access to food. Household food security implies access to the food needed for a healthy and productive life. Lack of access to and/or impaired utilization of food contribute to household food insecurity. This study compares the utility of a standardized food security scale for determining the food insecurity status of rural and urban households in Bangladesh...

Our unique three year project enabled us to film and catalogue a library of 110 DVDs covering many inherited metabolic diseases, diagnosis, symptoms, treatment, research and prognosis. This information was then transcribed into written format and translated into various languages. This innovative project grew out of a need identified during a 2 year research project for information covering met...

A continuum theory for high temperature creep of polycrystalline solids is developed. It includes the relevant deformation mechanisms for diffusional and dislocation creep: elasticity with eigenstrains resulting from vacancy diffusion, dislocation climb and glide, and the lattice growth/loss at the boundaries enabled by diffusion. All the deformation mechanisms are described with respect to the...

Water Resource Sustainable Utilization (WRSU) is becoming increasingly important, given growing water resource shortages and widening gaps between water supply and demand. Most existing studies have focused on WRSU levels without a dedicated strategy-oriented framework. In addition, uncertainties occur in the process of indicator quantification and grading, leading to a lack of accuracy in the ...

The reaction was carried out in dry EtOH under an argon atmosphere and at room temperature. NMR spectrum was recorded with a Bruker Avance 300 spectrometer and all chemical shifts are reported relative to the solvent signal [CDCl3: 7.26 ppm ( H)]. The assignments of the NMR signals were carried out under using 2D-NMR experiments H-HCOSY. IR spectra were recorded with a Thermo Nicolet NEXUS FTIR...

Supporting Information General methods. Infrared spectra were recorded on a Nicolet AVATAR-360 spectrometer. H NMR and C NMR spectra were recorded at Bruker AM-300 instruments. Low resolution mass spectra (m/z) were recorded on HP5989A. High-resolution mass spectra were recorded on Concept 1H or MALDI/DHB. Microanalyses were performed using a Elemantar Vario EL. All reaction flasks were dried b...