Relapse prevention in pedophiles: Clinical issues and program development.

Describes an outpatient relapse prevention group therapy program for child molesters. 50 men have completed the initial phase of the program thus far. Based on the assumption that the individual can learn to recognize risk situations and exert control over potentially harmful urges, the program stresses support, self-help, and education. Considerable time is spent helping the men identify risky mood states, since it is assumed that intervention is best carried out at the feeling stage, before the pedophile forms and then enacts a plan. Ultimately, it is hoped that these men can stop their impulsive and harmful acts through the development of an empathic understanding of the perspective of the other. (French abstract) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Behavior therapy and behavior modification.

Behavior therapy and behavior modification are contrasted according to the psychological paradigm in which each belongs. Behavior therapy is located within the traditional S-O-R (stimulus-organism-response) paradigm which stresses "action" or "interaction" explanations of behavior, because its objective is to effect a cure of an individual's abnormal behavior by modifying the state of the individual alone. Behavior modification is located within a newly developed S-R-SR (stimulus-response-reinforcement) paradigm which stresses "transaction" explanations of behavior, because its objective is not to cure an individual but to arrange response-reinforcement contingencies which alter the individual's transactions with his environment. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Ground-Free ECG Recording with Two Electrodes

ECG recordings normally use three electrodes?two for the differential inputs of the ECG amplifier and the third for ground. We analyze those situations where the ground electrode can be eliminated. We propose a model for the source of electrical interference and determine various parameter values. Making use of experimentally obtained data for the model parameters we suggest optimal design for a two-electrode amplifier. The two-electrode design is useful for biotelemetry, portable Holter monitors, and portable arrhythmia monitors. Under certain circumstances it may be useful for grounded monitoring equipment. The two-electrode technique has the advantage that it improves patient safety by eliminating the ground electrode. Fewer electrodes make patient attachment easier and lower electrode costs.     

Defibrillation Recovery Curves for Different Electrode Materials

We tested 16 electrode materials for their electrical characteristics and normalized all results to a 1 cm2 area. The electrode pair impedance versus frequency from 5 to 2000 Hz ranged from 20 to 58 000 ?. We passed 2 mC through them in less than 5 ms to simulate defibrillation discharge. The resulting recovery curves showed voltage offsets after 5 s of from 300 to 800 mV.     

The Effect of Lubricant Traction on Scuffing

This paper presents the results of a disc machine gear simulation investigating the influence of lubricant traction characteristics and formulation on the load at which scuffing occurs. Scuffing theories in general link the onset of scuffing to the amount of heat generated in the contact and the authors hypothesized that reduced heat generation with low traction lubricants should lead to an increase in scuffing load. The study compared low traction PAO-based lubricants with mineral oils in basestock, antiwear and EP formulations and at both high (>6) and moderate (approximately 1.2) specific film thickness, λ. At λ > 6, the benefits of the synthetics over their mineral counterparts ranged from 25 percent to 220 percent and at λ ? 1.2, the benefits were a uniform 40 percent. It was particularly interesting to observe that the antiwear PAO-based oil gave a similar scuff load per unit contact width to an EP mineral gear oil. In addition, it was shown that scuffing load decreased with increasing traction coefficient to the power of approximately ? 1.85, close to the ?2.00 power predicted by the frictional power intensity concept. The agreement with flash temperature theory, with a predicted power of ?1.33, was less close.     

基于振动分析法的变压器故障分类和识别

为了实现变压器故障的直观分类和故障识别,在分析变压器振动机理的基础上,提出一种基于主成分分析和KNN分类识别的变压器故障测量方法。该方法采用EMMD(集合经验模式分解)方法提取变压器不同运行状态下振动信号的特征矢量,将该特征矢量通过主成分分析投影到直观的二维图像中。利用KNN分类识别实现故障分类和自动故障识别。试验结果表明,该方法可以实现对变压器正常状态、绕组变形、铁芯故障3种状态直观分类,并对测试样本进行快速的自动模式识别。     

利用固定化酵母进行黄酒主发酵的初步研究

该文以海藻酸钙凝胶为固定化载体,从酵母浓度、海藻酸钠浓度、氯化钙浓度3方面来探究黄酒主发酵阶段的最佳固定化条件,确定了酵母浓度为109个/mL,海藻酸钠浓度为2.0%,氯化钙浓度为4%。同时将其与传统游离酵母的发酵曲线进行对比,并且在实验室条件下连续进行了12次固定化酵母发酵,结果显示主发酵结束时酒样的酒精度在7.4%vol左右(与游离发酵结果类似),稳定性较为理想。     

Occurrence of trenbolone acetate metabolites in simulated confined animal feeding operation (CAFO) runoff

Metabolites of androgenic synthetic growth promoters used at confined animal feeding operations (CAFOs) pose a demonstrated ecological risk. To evaluate the transport of trenbolone acetate (TBA) metabolites from beef cattle CAFOs, rainfall simulation experiments were conducted at the University of California, Davis, research CAFO. Steroid concentrations in solid and aqueous samples from the research CAFO and solids samples from a commercial CAFO were analyzed by gas chromatography-tandem mass spectrometry. The data indicate that 17α-trenbolone (17α-TBOH), 17β-trenbolone (17β-TBOH), and trendione (TBO), the three primary TBA metabolites, occur in soils and runoff. Soils at the research CAFO contained up to 8.2 (±1.1) ng/g-dw of 17α-TBOH and 1.2 (±0.1) ng/g-dw of 17β-TBOH, with slightly higher (~20 ng/g-dw) 17α-TBOH concentrations observed in commercial CAFO soils. In simulated runoff, 17α-TBOH concentrations of 1-350 ng/L and TBO concentrations from 1-170 ng/L were observed. The metabolite 17β-TBOH intermittently occurred in runoff samples at 5-26 ng/L and may be correlated to anaerobic soils. Metabolite concentrations observed in CAFO runoff correspond to 5-15% of potential maximum steroid concentrations predicted by mass balances. First order transformation rates of 0.028/day (25 day half-life) were estimated for 17α-TBOH in CAFO soils. Results suggest that ecologically relevant concentrations of TBA metabolites can be mobilized from CAFO surfaces in storm runoff and may lead to receiving water concentrations at or above ecological effects thresholds for a very limited number of discharge scenarios.     

Novel biobased dual-cure coating system

Sucrose esters consisting of acetoacetates and fatty acids were invented as novel biobased amine-cured and autoxidation dual-cure coating systems, in the presence of diamine crosslinker and metal salt driers. Acetoacetylated sucrose soyate (ASS) was an intramolecular system containing both acetoacetates and fatty acids in the same molecule. Miscible bicomponent blends, made of ASS and partially enamine alkyl substituted acetoacetylated sucrose (p-EAS), was an intermolecular curing system. Compatibility between the two components was achieved by reacting acetoacetylated sucrose (AS) with alkyl amines, in which the compatibility could be adjusted by either the alkyl chain length or the degree of enamine alkyl substitution, DES. Sucrose esters were characterized by gel permeation chromatography (GPC), Fourier transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, and differential scanning calorimetry (DSC). The properties and drying times of coatings cured through autoxidation, amine-acetoacetate reactions, and by dual-curing were studied. It was found that acetoacetate chemistry improved the attributes of sucrose ester of fatty acids in ambient curing conditions, as well as providing dual-cure coatings having a good balance of properties.