Web-conference supervision for advanced psychotherapy training: A practical guide.

The advent of readily accessible, inexpensive Web-conferencing applications has opened the door for distance psychotherapy supervision, using video recordings of treated clients. Although relatively new, this method of supervision is advantageous given the ease of use and low cost of various Internet applications. This method allows periodic supervision from point to point around the world, with no travel costs and no long gaps between direct training contacts. Web-conferencing permits face-to-face training so that the learner and supervisor can read each other's emotional responses while reviewing case material. It allows group learning from direct supervision to complement local peer-to-peer learning methods. In this article, we describe the relevant literature on this type of learning method, the practical points in its utilization, its limitations, and its benefits. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Improvement of measurement techniques for damping induced by micro-sliding

This paper deals with the damping caused by friction in joints. A new test bench is presented and justified by comparisons made with devices described in the literature. The purpose of this academic bench is to measure the damping induced by partial slip and friction in a planar joint. Moreover, allows uncoupling normal static and dynamic tangential forces. A new method for so-called stopped-sine excitation was developed. It allows more precise monitoring of the evolution of the vibration frequency and damping of non-linear modes. This method is associated with piezoelectric exciters for greater efficiency when stopping excitation. A large number of experimental results are presented and discussed. They are used to characterize the damping induced by micro-sliding in the bonds.     

The blue bronze Tl0.30MoO3 structure and physical properties

Crystals of the so-called blue bronze Tl_0.30MoO₃ were prepared by tempering molten mixtures. The structure was refined in the space group C2/m from 2171 reflections corrected for absorption. The R and R_w factors obtained from the last refinement cycle are 0.030 and 0.036 respectively for 114 refined parameters. The Zachariasen method enabled the 4d distribution over the three independent sites Mo1, Mo2 and Mo3 to be determined and gave 16.6 %, 39.7 % and 43.7 % respectively.For each octahedron a close correlation appears between the number of shared edges, the formal molybdenum charge and its eccentricity within the polyhedron. It is found that the molybdenum Mo1 has the highest formal charge ; this site does not seem to participate in the electrical conductivity which takes place mainly in the slabs thanks to the molybdenum sites Mo2 and Mo3 which represent 83.4 % of the electron density.Tl_0.30MoO₃ shows a metal-to-semiconductor transition at 185 K, probably of Peierls type. We propose that the non-linear effects and metastability phenomena observed below 180 K, in the non-ohmic regime are very likely due to the depinning of a charge density wave, as it has been found in the blue bronze K_0.30MoO₃     

The Sandia Fracture Challenge: blind round robin predictions of ductile tearing

Existing and emerging methods in computational mechanics are rarely validated against problems with an unknown outcome. For this reason, Sandia National Laboratories, in partnership with US National Science Foundation and Naval Surface Warfare Center Carderock Division, launched a computational challenge in mid-summer, 2012. Researchers and engineers were invited to predict crack initiation and propagation in a simple but novel geometry fabricated from a common off-the-shelf commercial engineering alloy. The goal of this international Sandia Fracture Challenge was to benchmark the capabilities for the prediction of deformation and damage evolution associated with ductile tearing in structural metals, including physics models, computational methods, and numerical implementations currently available in the computational fracture community. Thirteen teams participated, reporting blind predictions for the outcome of the Challenge. The simulations and experiments were performed independently and kept confidential. The methods for fracture prediction taken by the thirteen teams ranged from very simple engineering calculations to complicated multiscale simulations. The wide variation in modeling results showed a striking lack of consistency across research groups in addressing problems of ductile fracture. While some methods were more successful than others, it is clear that the problem of ductile fracture prediction continues to be challenging. Specific areas of deficiency have been identified through this effort. Also, the effort has underscored the need for additional blind prediction-based assessments.     

Depression and conduct disorder in native and non-native children

OBJECTIVE: To compare depression and conduct disorder symptoms between North American Native and non-Native children as rated by teacher, parent, and self-reports. METHOD: The sample included 1,251 Native children in grades 2 and 4 in four different settings across North America and comparison samples of 457 non-Native children. Parents, teachers, and children rated children's mental health using culturally sensitive measures of depression and conduct disorder symptoms. RESULTS: According to parent ratings and child self-reports, there were no Native/non-Native differences in levels of conduct disorder symptoms. However, non-Native teachers rated higher levels of conduct disorder symptoms among Native children compared with non-Native students. Children reported higher levels of depression than the adults rating them. CONCLUSIONS: Results challenge assertions about high levels of psychopathology among Native youngsters. Cultural distance may introduce a negative bias in teacher evaluations of Native children's mental health.     

Process improvement and the corporate balance sheet

The Software Engineering Initiative, process-improvement program undertaken by the Software Systems Laboratory in Raytheon's equipment division in mid-1988 is reviewed. The three phases of the program are the process-stabilization phase, in which the emphasis is on distilling the elements of the process actually being used and progressively institutionalizing it across all projects, the process-control phase, in which emphasis shifts to instrumenting projects to gather significant data and analyze the data to understand how to control the process, and the process-change phase, in which the emphasis is on determining how to adjust the process as a result of measurement analysis and how to diffuse the new methods among practitioners. It is shown that the process-improvement initiative has improved the equipment division's bottom line, increased productivity, and changed the corporate culture. Much of the savings came from reducing rework     

Adaptive non-linear speed control of induction motors

In this paper we present two adaptive non-linear speed control algorithms for induction motors. They employ input-output linearization techniques for the motor model in the stator fixed reference frame. The first control algorithm directly tracks speed and rotor flux. The second is designed using torque and rotor flux tracking and is extended for speed control. A key point is that this algorithm ensures exact current limitation in the known parameter case. The adaptation based on Lyapunov design can cope with rotor and stator resistance variations. Significant simulations using sampled controllers are presented emphasizing adaptation and current limitation effects.     

Microstructure of (Fe0.2Co0.8)0.8(Fe2.38Co0.62O4): A Magnetic Oxidation Resistant Composite Formed by Coprecipitation

The metal–ferrite composite (Fe_0.2Co_0.8)_0.8(Fe_2.38Co_0.62O₄) has been studied by X-ray diffractometry measurements and high-resolution transmission electron microscopy. Spinel ferrite occurs in highly crystalline domains 100–150 nm in size, and the iron–cobalt alloy occurs in smaller and less-crystalline domains (10–20 nm). Both phases are heterogeneous in composition. The metal is embedded in the spinel phase, located near the edges, and overlaid by a poorly crystallized layer or misshapen regions containing small spinel crystals and amorphous phases. By annealing under vacuum up to 800°C, the misshapen regions disappear and the size of the metallic regions increases. The concentration of iron in the metallic regions decreases and their structure changes to face-centered cubic, while the spinel becomes enriched in iron.