On reintegrating dissociated theories: Comment on Kirsch and Lynn (1998).

In response to I. Kirsch and S. J. Lynn's (1998) review of dissociation theories of hypnosis, the authors discuss the role of theory in current hypnosis research. In addition, they show how the 2 dissociation theories, as well as an alternative sociocognitive theory, can be integrated into a dual-system model of action (D. A. Norman & T. Shallice, 1986). Finally, they argue that the essence of dissociation theory does not necessarily rely on special mechanisms, such as the amnesic barrier and hidden observer, which Kirsch and Lynn critiqued. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Examining the Role of Fire Prevention on Hoarding Response Teams: Vancouver Fire and Rescue Services as a Case Study

Hoarded homes present a significant threat to the safety of occupants of the home and adjacent homes as well as emergency responders. Extreme accumulation of combustible materials raises the fuel load and prevents egress. Despite having regulatory tools related to fire prevention, fire departments generally lack the necessary background to address the many challenges related to the complex mental health problem of hoarding. Using Vancouver as a case study, this paper highlights the role of Vancouver Fire and Rescue Services in the City’s coordinated hoarding response and outlines their fire code inspections protocol developed for use in hoarding cases. On the basis of fire inspection reports, we compare the processes and outcomes of complaint-driven hoarding inspections with standard annual fire inspections of restaurants. Hoarding cases take longer to resolve and are more challenging, but inspectors achieved satisfactory status in 94% of cases without prosecution. About 20% of hoarding complaints do not involve fire code violations. Although this approach requires an investment and engagement with other community agencies, it represents a useful model for other jurisdictions.     

Radiation damage in BaF2 crystals

The change in optical transmission of a number of BaF₂ crystals has been measured as a function of exposure to ⁶⁰Co radiation up to a dose of 4.7×10⁶ rad. Although some crystals exhibited a small change in transmission, a greater change in scintillation light output was observed. Several 25-cm-long crystals which have been irradiated showed large changes in both transmission and light output. Recovery from radiation damage was studied as a function of time and exposure to UV light. A long-lived radiation-induced phosphorescence was observed in all irradiated samples which was distinct from the standard fast and slow scintillation emissions. The emission spectrum of the phosphorescence was measured and showed a peak at ~330 nm, near the region of the slow scintillation component. Results are given on the dependence of the decay time of the phosphorescence with dose     

Oxidation of chlorinated ethenes by potassium permanganate: a kinetics study

The kinetics of oxidation of perchloroethylene (PCE), trichloroethylene (TCE), three isomers of dichloroethylene (DCE) and vinyl chloride (VC) by potassium permanganate (KMnO(4)) were studied in phosphate-buffered solutions of pH 7 and ionic strength approximately 0.05 M and under isothermal, completely mixed and zero headspace conditions. Experimental results have shown that the reaction appears to be second order overall and first order individually with respect to both KMnO(4) and all chlorinated ethenes (CEs), except VC. The degradation of VC by KMnO(4) is a two-consecutive-step process. The second step, being the rate-limiting step, is of first order in VC and has an activation energy (E(a)) of 7.9+/-1 kcal mol(-1). The second order rate constants at 20 degrees C are 0.035+/-0.004 M(-1) s(-1) (PCE), 0.80+/-0.12 M(-1) s(-1) (TCE), 1.52+/-0.05 M(-1) s(-1) (cis-DCE), 2.1+/-0.2 M(-1) s(-1) (1,1-DCE) and 48.6+/-0.9 M(-1) s(-1) (trans-DCE). The E(a) and entropy (DeltaS(*)) of the reaction between KMnO(4) and CEs (except VC) are in the range of 5.8-9.3 kcal mol(-1) and -33 to -36 kcal mol(-1) K(-1), respectively. Moreover, KMnO(4) is able to completely dechlorinate CEs, and the increase in acidity of the solution due to CE oxidation by KMnO(4) is directly proportional to the number of chlorine atoms in CEs.     

The mechanism and applicability of in situ oxidation of trichloroethylene with Fenton's reagent

Fenton's reagent is the result of reaction between hydrogen peroxide (H(2)O(2)) and ferrous iron (Fe(2+)), producing the hydroxyl radical (-*OH). The hydroxyl radical is a strong oxidant capable of oxidizing various organic compounds. The mechanism of oxidizing trichloroethylene (TCE) in groundwater and soil slurries with Fenton's reagent and the feasibility of injecting Fenton's reagent into a sandy aquifer were examined with bench-scale soil column and batch experiment studies. Under batch experimental conditions and low pH values ( approximately 3), Fenton's reagent was able to oxidize 93-100% (by weight) of dissolved TCE in groundwater and 98-102% (by weight) of TCE in soil slurries. Hydrogen peroxide decomposed rapidly in the test soil medium in both batch and column experiments. Due to competition between H(2)O(2) and TCE for hydroxyl radicals in the aqueous solutions and soil slurries, the presence of TCE significantly decreased the degradation rate of H(2)O(2) and was preferentially degraded by hydroxyl radicals. In the batch experiments, Fenton's reagent was able to completely dechlorinate the aqueous-phase TCE with and without the presence of soil and no VOC intermediates or by-products were found in the oxidation process. In the soil column experiments, it was found that application of high concentrations of H(2)O(2) with addition of no Fe(2+) generated large quantities of gas in a short period of time, sparging about 70% of the dissolved TCE into the gaseous phase with little or no detectable oxidation taking place. Fenton's reagent completely oxidized the dissolved phase TCE in the soil column experiment when TCE and Fenton's regent were simultaneously fed into the column. The results of this study showed that the feasibility of injecting Fenton's reagent or H(2)O(2) as a Fenton-type oxidant into the subsurface is highly dependent on the soil oxidant demand (SOD), presence of sufficient quantities of ferrous iron in the application area, and the proximity of the injection area to the zone of high aqueous concentration of the target contaminant. Also, it was found that in situ application of H(2)O(2) could have a gas-sparging effect on the dissolved VOC in groundwater, requiring careful attention to the remedial system design.     

The obese child as a social being and developing self.

The social and emotional concomitants of childhood obesity are discussed. The extant empirical literature is reviewed and placed in the context of relevant social-psychological and developmental theory. Implications for treatment are also outlined. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Transfer of multivariate calibrations between four near-infrared spectrometers using orthogonal signal correction

The transfer of partial least squares (PLS) calibration models among four near-infrared spectrometers was investigated for the quantitative analysis of thermoset resin polymers. A comparative study of second derivatives, multiplicative scatter correction, finite impulse response filtering, slope and bias correction, model updating (MU), and orthogonal signal correction (OSC) was conducted to determine which processing methods achieved model transferability. It is shown that OSC and MU were superior to the other calibration transfer methods, leading to very robust PLS models with enhanced predictive ability. It is also shown that the transfer results obtained with OSC were not significantly different from those obtained with model updating.     

Domestic violations of confidentiality.

In mental health practice, protecting the confidentiality of psychological information provided by clients is the cornerstone of professionalism. Often there are inadvertent violations of this axiom. On the basis of true examples, this article reveals the pitfalls associated with an office in the home, unsecured documents in the home, the telephone answering machine in the home, the family Internet account, the family computer, the shared fax machine, the shared mail box, the family dining table, the accidental revelation, the errant spouse, and exposure through litigation. Possible exceptions and special situations are discussed, and safeguards are recommended. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Beneficial effect of treatment with a monoclonal anti-tumor necrosis factor-alpha antibody on markers of coagulation and fibrinolysis in patients with active Crohn's disease

Crohn's disease has frequently been associated with coagulation abnormalities, causing intravascular deposition of fibrin and local infarction which can subsequently compromise the gut mucosa. Also, arterial and venous thromboembolic complications of larger vessels appear to be associated with Crohn's disease. Coagulation activation in patients with Crohn's disease could be a result of increased serum and tissue levels of cytokines, as reported. We prospectively studied parameters of coagulation and fibrinolysis in 10 patients with active Crohn's disease, who were subsequently treated with a monoclonal anti-tumor necrosis factor-alpha (TNF) antibody. Ten consecutive patients with active Crohn's disease (CDAI > 150), not responding to a daily dose of at least 20 mg prednisolone, received a single infusion of human/mouse chimeric anti-TNF antibody cA2. All evaluable patients attained complete clinical and endoscopic