What Do We Really Know About First‐Person‐Shooter Games? An Event‐Related,High‐Resolution Content Analysis

Multiple studies have been addressing effects of playing violent video games. However, most such studies neglect users' individual experiences. In fact, each player's gameplaying choices creates his or her own specific game content. Within this study we analyzed the individually generated content of a typical first-person-shooter game with high temporal resolution and associated them with physiological response measures (heart rate, skin conductance) collected during the game play. Thirteen experienced game players played the multiplayer first-person-shooter game " Tactical Ops: Assault on Terror " for 50 minutes on average. Playing phases and events in between were analyzed on both an intraplayer and interplayer level. Results indicate varying gaming experiences in the users and distinct arousal levels over time and for different game events.     

New lower matrix bounds for the solution of the continuous algebraic lyapunov equation

New lower matrix bounds are derived for the solution of the continuous algebraic Lyapunov equation (CALE). Following each bound derivation, an iterative algorithm is proposed to derive tighter matrix bounds. In comparison to existing results, the presented results are more concise and are always valid when the CALE has a non‐negative definite solution. We finally give numerical examples to show the effectiveness of the derived bounds and make comparisons with existing results. Copyright © 2008 John Wiley and Sons Asia Pte Ltd and Chinese Automatic Control Society     

评价Spice模型不能仅考虑直流与交流性能

在使用Spice以前，评价其直流与交流性能是成功的关键。但模型评价不应仅限于此，设计者还应了解，当有源器件模型在非线性区域工作时的执行情况以及有怎样的关键交流指标。这些参数很难或不可能通过数据资料来验证，因为数据资料并未给出在器件通往电源轨的放大器输出级非线性区上工作时的指标。     

煤粉锅炉改造挖潜实现增产降耗

本文分析了ＷＧＺ５０／３．８２—ｌ型煤粉锅炉运行中存在的不足，制订出相应的整改措施．并对改造后的运行调试方案进行了详细的阐述，证明改造是成功的，锅炉热效率由８５．４％提高到８９．０％，出力和运行稳定性也大有提高。     

Problem solving and intervention design: Guidelines for the evaluation of technical adequacy.

Describes suggested guidelines for evaluating the technical adequacy of problem solving and intervention design. The problem- solving process, viewed as a structural aspect of validity, provides an overarching set of rules through which assessment information is transformed into professional inferences, actions, and outcomes. The article defines key concepts, including decision making, consequences, and problem solving. These concepts are then used to illustrate potential points of analysis for each step of the problem-solving process, including problem identification, problem analysis, plan development and implementation, and plan evaluation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Review of Gambling problems in youth: Theoretical and applied perspectives.

Reviews the book, Gambling Problems in Youth: Theoretical and Applied Perspectives edited by Jeffrey L. Derevensky and Rina Gupta (2004). This book specifically addresses gambling problems in youth, and presents a balanced and comprehensive overview of theory, research, and treatment knowledge. Throughout the book, contributing authors draw valuable conclusions on the major issues of measurement, treatment, prevention and, social policy. This book will be valuable for practitioners, researchers, and academics interested in youth with gambling problems. One of its unintended consequences may be to increase the research capacity of the field. Its broad and compelling overview of problem gambling, as it affects young people, may well entice new researchers to the field, or refocus and draw veteran researchers into this important emerging area of endeavour. (PsycINFO Database Record (c) 2010 APA, all rights reserved)