1,2-Dichloroethane (1,2-DCA) and 1,2-dibromoethane (ethylene dibromide [EDB]) contaminate groundwater at many hazardous waste sites. The objectives of this study were to measure yields, maximum specific growth rates (μ), and half-saturation coefficients (K(S)) in enrichment cultures that use 1,2-DCA and EDB as terminal electron acceptors and lactate as the electron donor and to evaluate if the ...

Background The current US Environmental Protection Agency (EPA) maximum contaminant level (MCL) for arsenic in public water systems (10 µg/L) took effect in 2006. Arsenic is not federally regulated in private wells. The impact of the 2006 MCL on arsenic exposure in the US, as confirmed through biomarkers, is presently unknown. We evaluated national trends in water arsenic exposure in the US, hy...

Long-term impacts of alternative citrus nitrogen and water management practices implemented at grower cooperator sites on the Central Florida Ridge were modeled using the nitrogen component of the Leaching Estimation and Chemistry Model (LEACHN). A bromide tracer test was conducted at one representative cooperator site to parameterize and validate the model. Following validation, 50-year simula...

Cyclooxygenase 2 (COX-2) has been reported to be commonly expressed in advanced stages of human lung adenocarcinoma. In this study, the COX-2 constitutive expression vector was transfected into a human lung adenocarcinoma cell line CL1.0 and several clones were obtained which stably expressed COX-2. These COX-2-overexpressed clones demonstrated remarkable resistance to apoptosis induced by Ultr...

erchlorate is a highly soluble salt anion that can negatively affect the ability of the human thyroid to adequately uptake iodide (Greer et al, 2002; Wolf, 1998). Since early 1997, perchlorate analytical techniques have significantly improved. As a result, drinking water testing performed throughout the United States has uncovered perchlorate contamination in several regions of the country at l...

Wastewater was collected from the Dheradun industrial area situated in capital of uttrakhand. Samples were collected between the periods of November 2010 to Aug.2011 determine the following parameters, pH, temperature, turbidity, chemical oxygen demand (COD), Biological oxygen demand(BOD), dissolved oxygen (DO), conductivity, total dissolved solid (TDS), total suspended solid (TSS), sulphate, n...

in this paper, a modeling tool for risk assessment analysis of the movement of hydrocarbon contaminants in the vadose zone and mass flux of contamination release into the groundwater table was developed. also, advection-diffusion-reaction equations in combination with a three-phase equilibrium state between trapped air, soil humidity, and solid particles of unsaturated soil matrix were numerica...

The EBV-encoded latent membrane protein 1 (LMP1) suppresses apoptosis in B lymphocytes through up-regulation of Bcl-2. However, the maximum induction of Bcl-2 by LMP1 takes about 48-72 h. We show in this report that up-regulation of the Bcl-2 homologue Mcl-1 by LMP1 preceded the induction of Bcl-2 and that the up-regulation was transient; therefore, Mcl-1 levels decreased when Bcl-2 levels star...

The spontaneous activity and impulse conduction velocities of mitral and tufted cells were compared in the entire main olfactory bulb of freely breathing, anesthetized rats. Single units in the mitral cell body layer (MCL) and external plexiform layer (EPL) were identified by antidromic activation from the lateral olfactory tract (LOT), electrode track reconstructions based on dye marking, and ...