Background: Brucellosis is a world-wide disease, which has a diverse clinical manifestation, and its diagnosis has to be proven by laboratory data. Serum agglutination test (SAT) is the most-widely used test for diagnosing brucellosis. The enzyme linked immunosorbent assay (ELISA) can also determine specific antibody classes against brucella. It is a sensitive, simple and rapid test, which coul...

This article describes for the first time elaboration of a cationic exchange membrane (CEM) from an end-of-life reverse osmosis (RO) membrane. The has been prepared in two successive steps: (i) chlorine attack and (ii) filtration/adsorption polystyrene sulfonic acid (PSS) electrolyte solution. Physicochemical characterizations have undertaken including (Na+) transference number (t(Na+)), diffus...

OBJECTIVE One of the many challenges faced by epidemiologists is to adequately plan and optimize subject selection procedures in terms of effectiveness and efficiency. In the context of a case-control study involving severe acute malnutrition, a two-step subject selection procedure is used. The aim of the article is to establish an appropriate cut-off point for the screening phase and to achiev...

in the construction process of a plastic concrete cut-off wall, concreting is usually performed using the termie pipe method. in this method, concreting is performed from the lowest point in the excavated trench (containing the slurry) using a funnel and the pipe connected to it. the concrete poured in the funnel gradually settles in the panel through the termie pipe which is beneath the slurry...

Extended Abstract. Sampling is the process of selecting units (e.g., people, organizations) from a population of interest so that by studying the sample we may fairly generalize our results back to the population from which they were chosen. To draw a sample from the underlying population, a variety of sampling methods can be employed, individually or in combination. Cut-off sampling is a pr...

Abstract:   A two-dimensional fully implicit finite difference model, which can be easily extended to three dimensions, is developed to study the effect of cut-off walls on saltwater intrusion into the aquifers. This model consists of a coupled system of two nonlinear partial differential equations which describe unsteady density-driven groundwater flow and solute transport. The numerica...