The current proof of the PCP Theorem (i.e., NP = PCP(log, O(1))) is very complicated. One source of difficulty is the technically involved analysis of low-degree tests. Here, we refer to the difficulty of obtaining strong results regarding low-degree tests; namely, results of the type obtained and used by Arora and Safra and Arora et. al. In this paper, we eliminate the need to obtain such stro...

Phencyclidine (PCP) is a schizophrenomimetic drug of abuse. PCP binds with high affinity (apparent dissociation constant, KD less than 10(-6) M) to rat brain membranes and blocks, selectively, a voltage-gated, noninactivating K channel found in rat brain synaptosomes (presynaptic nerve terminals). Thus, it has been proposed that the high-affinity PCP receptor in brain is this K channel. Consist...

Effects of two different modified treatments were investigated relative to the chemical and mechanical properties pretreated corn stalk particles their composites prepared with a lignosulfonate (ML) binder. Corn (CP) first by treating oxalic acid in ultrasonic conditions (pretreated particles, PCP). These then treatment either laccase-vanillin system ultrasound (LU) or polyethylenimine-glutaral...

OBJECTIVES Anti-pneumococcal capsular polysaccharide (PCP) IgM, IgG and IgA ELISAs have been developed to aid assessment of the adaptive immune system. The relationship between the concentrations of PCP IgM, IgG, and IgA was investigated. DESIGN AND METHODS The concentrations of PCP IgM, IgG, and IgA were measured in sera obtained from 231 adult blood donors. RESULTS Concentrations of each ...

This study was conducted to improve the pentachlorophenol (PCP) bioremediation ability of white-rot fungi in highly contaminated field soils by manipulating bioaugmentation variables. These were the dry weight percentage of fungal inoculum addition (31-175 g kg(-1)), PCP concentration (100-2137 mg kg(-1) PCP), fungal inoculum formulation, and time (1-7 wk). Five fungal isolates were used: the N...

Planar cell polarity (PCP) describes the polarization of cell structures and behaviors within the plane of a tissue. PCP is essential for the generation of tissue architecture during embryogenesis and for postnatal growth and tissue repair, yet how it is oriented to coordinate cell polarity remains poorly understood [1]. In Drosophila, PCP is mediated via the Frizzled-Flamingo (Fz-PCP) and Dach...

OBJECTIVE To evaluate the effects of copper-phenanthroline (CuOP) on pentachlorophenol (PCP)-induced adaptation and cell death of Escherichia coli. METHODS Bacterial growth and adaptation to PCP were monitored spectrophotometrically at 600 nm. Inactivation of bacterial cells was determined from colony count on agar dishes. Cellular ATP content and accumulation of PCP were assessed by chemilum...

Background: This research studied the effect of UV light on pentachlorophenol (PCP) removal in the electro-Fenton (EF) process. Methods: PCP was used as the pollutant in this study. The effects of Fenton’s reagent, i.e. hydrogen peroxide concentration, solution pH, and treatment time by EF (EF) and photoelectro-Fenton (PEF) processes, were studied to determine rates of PCP removal. The r...

Pentachlorophenol (PCP) has long been used as a wood preservative. Because of the adverse environmental effects of PCP, it has widely contaminated soil and groundwater. In treating PCP, a number of bacteria have been isolated from the environment and applied to bioremediate contaminated areas. However, there is some controversy about the efficiency of PCP removal. This controversy originates in...