Lead in house dust has long been recognized as a principal source of excess lead absorption among children at the Bunker Hill Superfund Site (BHSS) in northern Idaho. House dust lead concentration from homeowner's vacuum cleaner bags has been monitored since the epidemic of childhood lead poisoning in 1974. Geometric mean house dust lead concentrations decreased from >10000 mg/kg in 1974 to app...

This paper investigates the issue of an economic manufacturing quantity model for defective products involving imperfect production processes and rework. We consider that the demand is sensitive to promotional efforts/sales teams’ initiatives as well as the setup cost can be reduced through further investment. It also assumes that fixed quantity multiple installments of the finished batch are d...

in this survey, opsonization activity of sera in 110 patients with meningitis, sepsis and recurrent infection 12 patients after healing and 50 normal adults has been studied. opsonization activity was measured by an assay depending on electronic particle counting to measure yeast uptake (alternative pathway activator) which was modified in our laboratory. three classes of immunoglobulins (lgg, ...

Introduced by Dvořák and Postle, the notion of DP-coloring generalizes list coloring helps to prove new results on coloring. We consider 1-defective 2-defective DP-colorings graphs with 2 colors. For j=1,2, we find exact lower bounds number edges in (j,2)-DP-critical (that is, that do not admit j-defective colors but whose every proper subgraph has such a coloring) given vertices. These also ho...

In this survey, opsonization activity of sera in 110 patients with meningitis, sepsis and recurrent infection 12 patients after healing and 50 normal adults has been studied. Opsonization activity was measured by an assay depending on electronic particle counting to measure yeast uptake (alternative pathway activator) which was modified in our laboratory. Three classes of immunoglobulins (...

This study aimed at presenting a method for formulating optimal production, repair and replacement policies. The system was based on the production rate of defective parts and machine repairs and then was set up to optimize maintenance activities and related costs. The machine is either repaired or replaced. The machine is changed completely in the replacement process, but the productio...

Abstract Aims Different drivers are known to shape rhizosphere microbiome assembly. How soil texture (Texture) and presence or lack of root hairs (Root Hair) plants affect the assembly potential extracellular enzyme activities (EEA) at defined rooting depth (Depth) is still a knowledge gap. We investigated effects these on microbial in EEA root-affected maize. Methods Samples were taken from th...