Empathy in conduct-disordered and comparison youth.

Empathy was measured by an interview assessing emotions and cognitions in response to videotaped vignettes of persons in affective events and by empathy self-report questionnaires. As hypothesized, empathy was lower among conduct-disordered (CD) than comparison youth and was related inversely to antisocial and aggressive attitudes for all youth tested. Affectively, CD youth (n?=?30) reported fewer concordant emotional responses to vignette persons than did a comparison peer group (n?=?32). Cognitively, CD youth reported fewer correct identifications of vignette persons' emotions, lower mean levels of cognitive attributions for their own responsive emotions, and lower scores on empathy-related cognitive scales. Significant gender differences occurred, with girls scoring higher than boys on empathy questionnaires. Findings are discussed in terms of previous empathy and aggression research, and directions for future study are suggested. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Concepts and conceptual structure.

Research and theory on categorization and conceptual structure have recently undergone two major shifts. The first shift is from the assumption that concepts have defining properties (the classical view) to the idea that concept representations may be based on properties that are only characteristic or typical of category examples (the probabilistic view). Both the probabilistic view and the classical view assume that categorization is driven by similarity relations. A major problem with describing category structure in terms of similarity is that the notion of similarity is too unconstrained to give an account of conceptual coherence. The second major shift is from the idea that concepts are organized around theories. In this article, the evidence and rationale associated with these shifts are described, and one means of integrating similarity-based and theory-driven categorization is outlined. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Craniofacial necrotizing fasciitis secondary to sinusitis

N-phenyl-carbamate of D-mannonohydroxymolactone (I) was synthesized from mannose and was shown to be the best competitive inhibitor of beta-mannosidase so far reported (Ki = 25 nM).     

Comparison of factor structures and criterion-related validity coefficients for two measures of personality based on the five factor model.

The factor structure and criterion-related validity for 2 types of personality measures that are based on 5 factor models were studied. Confirmatory factor analysis was used to compare a 5 versus 6 factor model in an applied setting. In addition, criterion-related validity coefficients were examined for the 2 inventories. Two Big Five measures were used—1 was an adjective-based bipolar inventory and the other was a questionnaire (NEO-Personality Inventory; PI)—to shed light on the relationships between inventory characteristics, factor structure, and criterion-related validity. The sample consisted of 423 flight attendant trainees. Results indicated that the 6 factor model provided a better fit for both measures compared with the 5 factor model. Scales from the NEO-PI were significantly correlated with measures of training success, whereas scales from the bipolar inventory were not. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Real-Time Measurement of Electric Arc-Furnace Disturbances and Parameter Variations

The general nature of electrical-supply network disturbances caused by arc-furnace operation is reviewed, including the guidelines adopted in several countries concerning disturbance-level estimation for single-and multifurnace installations. The meters available for the measurement of voltage flicker, including the international standard meter proposed by the International Union of Electroheat (UIE) are briefly described. The basic statistical properties of arc-furnace disturbances and parameter variations, treated as random variables, are discussed. Measured data are used to examine the probability distributions for variations in furnace voltage and current. Particular attention is given to methods of reliably measuring the disturbance and parameter-variation levels in real time on-line. Strategies are developed, and a microprocessor-based data-acquisition system, developed for this purpose, is described.     

The effects of post-weaning environment, biological dam, and nursing dam on feeding neophobia, open field activity, and learning.

Using rats in a cross-fostering design, we examined the effects of pre- and post-weaning rearing environments on feeding neophobia, open field activity, runway training, and visual discrimination learning. Fostering had no effect on the offspring behaviors. The animals reared, post-weaning, in an enriched environment consumed more food in a novel situation, were less active in the open field, and learned the first of two discrimination tasks faster than did the animals reared in the standard condition. Inter-correlations among these measures were nonsignificant, suggesting that the effect of environment on learning cannot be reduced to temperamental factors. The deficit in learning resulting from rearing in standard environment does not, however, appear to be irreversible; animals reared in the standard condition reached performance levels on the second discrimination task characteristic of those reared in the enriched environment. (French abstract) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Nadolol plus isosorbide mononitrate compared with sclerotherapy for the prevention of variceal rebleeding

BACKGROUND: Patients who have bleeding from esophageal varices are at high risk for rebleeding and death. We compared the efficacy and safety of endoscopic sclerotherapy with the efficacy and safety of nadolol plus isosorbide mononitrate for the prevention of variceal rebleeding. METHODS: Eighty-six hospitalized patients with cirrhosis and bleeding from esophageal varices diagnosed by endoscopy were randomly assigned to treatment with repeated sclerotherapy (43 patients) or nadolol plus isosorbide-5-mononitrate (43 patients). The primary outcomes were rebleeding, death, and complications. The hepatic venous pressure gradient was measured at base line and after three months. RESULTS: Base-line data were similar in the two groups, and the median follow-up was 18 months in both. Eleven patients in the medication group and 23 in the sclerotherapy group had rebleeding. The actuarial probability of remaining free of rebleeding was higher in the medication group for all episodes related to portal hypertension (P = 0.001) and variceal rebleeding (P = 0.002). Four patients in the medication group and nine in the sclerotherapy group died (P = 0.07 for the difference in the actuarial probability of survival). Seven patients in the medication group and 16 in the sclerotherapy group had treatment-related complications (P = 0.03). Thirty-one patients in the medication group underwent two hemodynamic studies; 1 of the 13 patients with more than a 20 percent decrease in the hepatic venous pressure gradient had rebleeding, as compared with 8 of the 18 with smaller decreases in the pressure gradient (P = 0.04) for the actuarial probability of rebleeding at two years). CONCLUSIONS: As compared with sclerotherapy, nadolol plus isosorbide mononitrate significantly decreased the risk of rebleeding from esophageal varices.     

Cost-effectiveness of detecting breast cancer in lower socioeconomic status African American and Hispanic women through mobile mammography services

A new method based on jackknifing is presented for measuring the difference between two conditions in the onset latencies of the lateralized readiness potential (LRP). The method can be used with both stimulus- and response-locked LRPs, and simulations indicate that it provides accurate estimates of onset latency differences in many common experimental conditions.