Introduction to the special section on attachment theory and psychotherapy.

In this introduction to the special section on attachment theory and psychotherapy, the editors briefly describe the key points of attachment theory (J. Bowlby, 1969, 1973, 1980) and its relevance to psychotherapy. They then outline their criteria for the selection of papers and briefly describe their emphasis. The aim of this section is to present novel and thought-provoking research that highlights the ways attachment theory principles contribute to understanding psychotherapy practice and outcome. It was the editors' goal to ensure breadth of coverage in terms of specific problems, range of populations, and types of treatments represented and to emphasize attachment-based treatments and outcomes. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

On the Total Variation of High-Order Semi-Discrete Central Schemes for Conservation Laws

We discuss a new fifth-order, semi-discrete, central-upwind scheme for solving one-dimensional systems of conservation laws. This scheme combines a fifth-order WENO reconstruction, a semi-discrete central-upwind numerical flux, and a strong stability preserving Runge–Kutta method. We test our method with various examples, and give particular attention to the evolution of the total variation of the approximations.     

Perception of emotional expression in musical performance.

Expression in musical performance is largely communicated by the manner in which a piece is played; interpretive aspects that supplement the written score. In piano performance, timing and amplitude are the principal parameters the performer can vary. We examined the way in which such variation serves to communicate emotion by manipulating timing and amplitude in performances of classical piano pieces. Over three experiments, listeners rated the emotional expressivity of performances and their manipulated versions. In Experiments 1 and 2, timing and amplitude information were covaried; judgments were monotonically decreasing with performance variability, demonstrating that the rank ordering of acoustical manipulations was captured by participants' responses. Further, participants' judgments formed an S-shaped (sigmoidal) function in which greater sensitivity was seen for musical manipulations in the middle of the range than at the extremes. In Experiment 3, timing and amplitude were manipulated independently; timing variation was found to provide more expressive information than did amplitude. Across all three experiments, listeners demonstrated sensitivity to the expressive cues we manipulated, with sensitivity increasing as a function of musical experience. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

取代染料的涂料系统

1　引言许多纺织印花商都梦想能够用涂料印花取代染料印花而不牺牲质量。染料印花需要汽蒸、洗涤、烘干、控制缩水率、排放含尿素的废水、去除天然胶或合成胶 ,有时还会出现交染沾色 ,存在碱、表面活性剂和其他污染物 ,而涂料印花可以消除这些问题。目前 ,涂料印花一直是印花织物最常用的系统。涂料印花系统最容易实施 ,和染料印花相比 ,工艺步骤更简化、成本更低。在一些国际纺织品市场上 ,最近的全球经济趋势已经影响这个行业到令人惊慌的程度。财政压力导致许多纺织厂关闭、萎缩或重组。丰富的供应以及极具竞争性的化学品价格带来了低价…     

Arsenic (V) removal with nanoparticulate zerovalent iron: Effect of UV light and humic acids

Results on As(V) removal in the presence of oxygen using the zerovalent iron technology with commercial iron nanoparticles (NanoFe^®) are presented, showing the effect of (NanoFe^®) mass, UV light and addition of humic acids. The nanosized iron particles (NZVI) were characterized in their particle size, surface area and constituent phases. As(V) removal was rapid and increased with NZVI mass (0.005–0.1 g L⁻¹) attaining more than 90% after 150 min of time contact with the optimal NanoFe^® concentration. The removal followed a biexponential kinetic decay, with rate constants increasing with NZVI mass. (NanoFe^®) presented an outstanding ability to remove As due to not only a high surface area and low particle size but also to a high intrinsic activity. Humic acids (HA) decreased around 50% the removal efficiency in the dark, indicating competition with As(V) for active surface sites. In contrast, UV light doubled removal rates, the process being even more enhanced in the presence of HA, with an almost total arsenic removal within 4 h. In all cases, adsorption on iron corrosion phases was found the main mechanism of As(V) removal, promoted by formation of Reactive Oxygen Species and enhanced under UV irradiation by the formation of multiple active species. Preliminary results with As-polluted groundwater of the Chacopampean Plain of Argentina (Tucumán Province) are also reported. Addition of NanoFe^® under UV irradiation for 3 h resulted in As contents well in agreement with the regulations (<10 μg L⁻¹).     

选择收发器需考虑灵敏度问题

为GSM／GPRS应用选择收发器时,我们必须考虑许多参数,例如材料清单(BOM)、体积、功能和特性。需要明确定义整个系统的最低性能要求,以及隐含的收发器性能,除非收发器性能的指标有很大的差异。在考虑各种技术规范时,系统灵敏度经常作为手机的一个重要指标。由于系统灵敏度对于系统性能的影响极大,因此是一个最重要的收发器性能规范。     

Mapping of non-planar surfaces and film conformality by alpha-particle energy loss spectroscopy

A method of mapping 3D periodic structures in the micron- and submicron range is presented. The method consists of implanting alpha-emitting nuclei close to the surface and measuring the emerging alpha-particles at various directions. Information about surface topography is then obtained from the number of alphas that are observed directly by the detector. Measuring the shift in energy due to deposition of overlayers permits the analysis of the conformality of films deposited on complex periodic structures. Typical applications include the characterization of gratings in semiconductor layers fabricated during the production of laser structures and of quantum wires. An experimental example for periodic V-grooves etched in GaAs is shown.     

Fast,simple ZnO/organic CMOS integrated circuits

Hybrid organic–inorganic CMOS thin-film circuits are a simple, potentially low-cost, approach for large-area, low-power microelectronic applications. We have used atmospheric pressure processes to deposit inorganic ZnO and organic diF TES-ADT semiconductor layers and an Al₂O₃ gate dielectric. The organic semiconductor uses a contact-treatment-related microstructure that allows circuits to operate without directly patterning the organic layer. Using a simple 4-mask process with bifunctional Ti/Au contacts for both ZnO and organic transistors, 7-stage ring oscillators were fabricated and operated at >500 kHz corresponding to a propagation delay of <150 ns/stage at a supply bias of 35 V. These are the fastest organic–inorganic CMOS circuits reported to date.