We investigated whether the threshold concentration for polychlorinated biphenyl (PCB) dechlorination may be lower in biosurfactant-amended sediments compared with biosurfactant-free samples. At PCB concentrations of 40, 60, and 120 ppm, the surfactant amendment enhanced the PCB dechlorination rate at all concentrations and the rate was also faster at higher concentrations. On a congener group ...

BACKGROUND Pharyngeal-cervical-brachial weakness (PCB) is considered a variant of Guillain-Barré syndrome (GBS). Because of its rarity, there have been no studies of large numbers of patients with PCB. OBJECTIVE To clarify the nosological classification of PCB. DESIGN Retrospective study. SETTING Academic research. Patients Medical records were reviewed of patients who manifested progress...

This paper studies decision making for Wal­ ley's partially consonant belief functions (pcb ) . In a pcb, the set of foci are par­ titioned. Within each partition, foci are nested. The pcb class includes probability and possibility functions as extreme cases. We adopt an axiomatic system, similar in spirit to von Neumann and Morgenstern's ax­ ioms for preferences leading to the linear util­ ity...

To cite: Wakerley BR, Yuki N. J Neurol Neurosurg Psychiatry 2014;85: 339–344. ABSTRACT The pharyngeal-cervical-brachial (PCB) variant of Guillain–Barré syndrome is defined by rapidly progressive oropharyngeal and cervicobrachial weakness associated with areflexia in the upper limbs. Serial nerve conduction studies suggest that PCB represents a localised subtype of Guillain–Barré syndrome charac...

The abundance, identities, and degradation abilities of indigenous polychlorinated biphenyl (PCB)-degrading bacteria associated with five species of mature trees growing naturally in a contaminated site were investigated to identify plants that enhance the microbial PCB degradation potential in soil. Culturable PCB degraders were associated with every plant species examined in both the rhizosph...

Natural soil contaminated with PCBs was used in this study. The soil was excavated from the area around the damaged capacitor of an electrical transformer station in Zadar (ETS 110/35 kV). A lysimeter experiment was conducted for 17 months under natural climatic conditions and designed to measure the concentration of PCB in the soil and leachates. Our research field was composed of four plots a...

We investigated the relationship between food frequency questionnaire (FFQ) responses and serum polychlorinated biphenyl (PCB) levels of mothers and fathers recruited from the Chiba Regional Center, which is one of the 15 regional centers of the Japan Environment and Children's Study (mothers: n = 1477, fathers: n = 219). The expected PCB values were estimated from the participants' FFQ answers...

In the study, embedded BASIC Stamp 2 (BS2) microchip controller is used to design with Hopfield neural network (HNN) as the foundation of sample training, which applies for a soldering platform of mechanical vision and accomplishes PCB soldering positioning technology. The proposed system design method in this paper can be divided into two parts: 1) the control rules of RC servo motor is design...

The content of polychiorinated hydrocarbons (PCHC) (mainly pesticides and their metabolites) and polychiorinated biphenyls (PCB) were assayed in fat tissue specimens of hunting animals, shot on the southwest coast of Greenland, and in Eskimoes of the same area. Among the birds highest amounts of pp'DDE and PCB were found in the cormorant and the raven (high amounts of PCB were also found in the...

Partially consonant belief functions (pcb), studied by P. Walley, are the only class of Dempster-Shafer belief functions that are consistent with the likelihood principle of statistics. Structurally, the set of foci of a pcb is partitioned into non-overlapping groups and within each group, foci are nested. The pcb class includes both probability function and Zadeh’s possibility function as spec...