拥挤效应对企业集群竞争优势的不利影响

本文分析了企业集群在发展中所产生的各种拥挤效应对企业集群竞争优势的不利影响。首先分析了企业集群竞争优势的源泉——集群内企业间的互动。在此基础上,我们分析了产品市场拥挤效应、要素市场拥挤效应、环境资源拥挤效应、基础设施拥挤效应对集群竞争优势的不利影响,并指出其政策含义。     

多元智力理论对青少年教育的启示

加德纳的多元智力理论倡导学生主动参与、探究发现、交流合作的学习理念,引起教师角色、教与学的方式的变革。多元智力理论赋予了青少年教育教学新的功能和价值取向,并为青少年教育教学改革提供了许多有益的启示。     

论循环经济唯物辩证的自然观基础

马克思主义唯物辩证的自然观是循环经济的世界观和方法论基础。马克思哲学自然观是唯物主义自然观,也是持辩证思维方式的自然观,它内在要求人类实现对自然的敬畏和尊重。唯物辩证的自然观也揭示出人类生产实践是一物质变换过程,发展循环经济就是要改善传统经济模式中不合理的物质变换模式,搞好物质的变换是发展循环经济的本质问题。马克思主义关于实现物质变换最优化的思想与循环经济具有内在的一致性,是循环经济实践的方法论基础。     

Editorial

Ohne Zusammenfassung     

Youth Development Outcomes of the Camp Experience: Evidence for Multidimensional Growth

Three thousand, three hundred and ninety-five families, whose child attended one of 80 different day or resident summer camps for at least one week, completed customized questionnaires that measured growth from precamp to postcamp in four domains: Positive Identity, Social Skills, Physical & Thinking Skills, and Positive Values & Spirituality. Parents, children, and camp staff reported significant positive change in these four domains; more than would be expected by maturation alone. Most gains were maintained or showed additional growth six months later. Few of the camp's structural elements correlated with growth, nor did striking gender, age, or ethnicity differences emerge. The study highlights the particular strengths of camp as an educational institution and social movement and suggests that different variations of summer camp can provide potent developmental experiences. Christopher A. Thurber is full-time faculty at Phillips Exeter Academy in Exeter, New Hampshire. He received his PhD in clinical psychology from the University of California, Los Angeles, in 1997. His major research interests include homesickness, youth camping, and developmental psychopathology. Margery M. Scanlin is the Executive Officer for Research at the American Camp Association in Martinsville, Indiana. She received her EdD from Temple University in Philadelphia, PA, in 1982. Her major research interests include youth development outcomes, program improvement in youth organizations, and organizational aspects of effective camps. Leslie Scheuler Whitaker is a Senior Associate with Philliber Research Associates in St. Louis, Missouri. She received her PhD in social science research from Washington University in St. Louis in 2000. Her primary research areas include youth development, arts education, and program evaluation. Karla A. Henderson is a professor in the Department of Parks, Recreation, and Tourism at North Carolina State University. She received her PhD in education from the University of Minnesota in 1979 and is currently a member of the American Camp Association Board of Directors. Her research interests include leisure behavior theory, camping and outdoor education, and gender and diversity issues.     

Parenting Behaviors,Association with Deviant Peers,and Delinquency in African American Adolescents: A Mediated-Moderation Model

The aim of the present study was to examine a model positing that association with deviant peers mediates the relation between adolescent perceived parenting behaviors (maternal monitoring and involvement), the interaction of these parenting behaviors, and delinquency in a sample of 135 urban African American adolescents (13–19 years of age). Regression analyses revealed a monitoring by involvement interaction among African American females, suggesting that maternal monitoring may effectively reduce delinquency among African American female adolescents, and that this reduction may be enhanced by increased maternal involvement. Among African American males, only the relation between association with deviant peers and delinquency was supported, suggesting that maternal parenting behaviors may, in isolation, be insufficient in the prevention of delinquent behaviors in African American male adolescents. The results suggest that the pathways from parenting to association with deviant peers and delinquency may differ in males and females, and the salience of certain parenting behaviors may differ across gender. This article is based on research that was submitted by the first author in partial fulfillment of the requirements of the master’s degree in psychology at the University at Albany, State University of New York. Support for this research was provided by a Faculty Research Award to the second author. Doctoral student in the Clinical Psychology Program at the University at Albany, State University of New York. Her major research interests include risk and resiliency processes in minority youth and measurement equivalence of risk and resiliency constructs. Assistant professor in the Department of Psychology at the University at Albany, State University of New York. She received her Ph.D. in Clinical Psychology from the University of North Texas. Her major research interests are ecocultural models of risk and resiliency in minority youth and measurement equivalence of risk and resiliency constructs. Post-doctoral fellow with the Prevention Research Center at Arizona State University. He received his Ph.D. in Clinical Psychology from the University at Albany, State University of New York. His major research interests are ecocultural models of risk and resiliency in children, preventive intervention development for diverse children, and quantitative methodology and applications in developmental and cross-cultural psychology.     

Socioenvironmental Risk and Adjustment in Latino Youth: The Mediating Effects of Family Processes and Social Competence

The direct and mediated effects of socioenvironmental risk on internalizing and externalizing problems among Latino youth aged 10–14 were examined using prospective analyses. Participants in this study were 464 Latino mother and child dyads surveyed as part of the Welfare, Children & Families: A Three City Study. It was hypothesized that socioenvironmental risk (i.e., maternal psychological distress, maternal parenting stress, neighborhood disadvantage, and perceived financial strain) would influence later adolescent adjustment by interrupting important family processes and interfering with opportunities for adolescents to develop appropriate social competence. Using path analyses, the mediational model was compared across high and low acculturation groups. With two exceptions, the models for the high and low acculturation groups were equivalent. Results supported a mediated effect between early socioenvironmental risk and later adjustment problems for the low acculturation group through family routines and adolescent social competence. Among families high in acculturation, socioenvironmental risk effects were partially mediated through family routines and adolescent social competence. Finally, a path from gender to maternal monitoring was present in the low acculturation group model but not the high acculturation group model. Assistant professor at the University at Albany, State University of New York. She received her Ph.D. in Clinical Psychology from the University of North Texas. Her major research interests are risk and resiliency processes in minority youth. Assistant professor at the University of Texas at Austin. She received her Ph.D. in Developmental Psychology from Michigan State University. Her major research interests are the effects of microenvironmental factors in the externalizing and internalizing behaviors of European American and Latino youth. Assistant professor at the University of Maryland, Baltimore County. She received her Ph.D. in Clinical Psychology from Michigan State University. Her major research interests are risk and protective factors in children and adolescents at-risk because of parental substance abuse.     

后冷战时期波兰的民族认同与俄罗斯观

民族认同的建构与民族的"他者"的变化互联互动。俄罗斯在波兰民族认同的建构和发展过程中,始终以"他者"的角色而存在,对后者发挥着关键性的影响作用。就波兰人的民族认同来说,俄罗斯的负面形象发挥着布迪厄所说的"文化资本"的功能。后冷战时期的波兰完全放弃了关于其身份和在国际体系中地位的旧有观念,其民族认同与民族意识发生了显著的变化。剧变后的俄罗斯的民主化转型,深刻影响着后冷战时期波兰的俄罗斯观的转变和波俄关系的调整。     

Patterns of Middle School Adjustment and Ninth Grade Adaptation of Rural African American Youth: Grades and Substance Use

The transition to high school has been identified as a potentially difficult time in adolescents’ lives. Reductions in both academic and social functioning often accompany this transition. While these effects have been documented in urban youth, the move to high school has not been extensively studied in rural minority youth. Toward that end, the academic grades and substance use in ninth grade of 447 (184 male and 263 female) African-American adolescents from two rural counties in a state in the deep South were examined in relation to configurations of adaptation from sixth through eighth grade. Results indicate that individual with consistently positive patterns across middle school had higher grades and lower rates of substance use compared to individuals with persistent difficulties or those that transitioned to problem behavior. Many individuals who improved in their patterns of adaptation had relatively high grades, but also rather high rates of substance use in the ninth grade. David B. Estell is an assistant professor of educational psychology at Indiana University Bloomington. He received his PhD in Developmental Psychology from the University of North Carolina at Chapel Hill. His major research interests include peer relations and the development of aggression. Thomas W. Farmer is an associate professor of education at Pennsylvania State University and director of the National Research Center on Rural Education Support. He received his PhD in Special Education from University of North Carolina at Chapel Hill. His major research interests include peer relations and the development of aggression in students with and without special needs. Matthew J. Irvin is a research scientist at the Center for Developmental Science at the University of North Carolina at Chapel Hill. He received his PhD in Educational Psychology from the University of North Carolina at Chapel Hill. His major research interests include resilience and student engagement. Jana H. Thompson is a research associate at the Center for Developmental Science at the University of North Carolina at Chapel Hill. Her research interests include peer social relations and developmental transitions into early adolescence. Bryan C. Hutchins is a research assistant at the Center for Developmental Science at the University of North Carolina at Chapel Hill. He is also a graduate student in the Educational Psychology, Measurement, and Evaluation Program at UNC. His research interests include child and adolescent social development and school based emotional and behavioral interventions and prevention programs. Erin M. McDonough is currently a doctoral candidate in School Psychology at the University of North Carolina at Chapel Hill. She received her Bachelor of Arts degree in Psychology from Emory University. As a research assistant at the Center for Developmental Science, she has been able to explore her interests in student achievement as well as rural education. Another major research interest of hers is school-based mental health.