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861.
862.
拥挤效应对企业集群竞争优势的不利影响 总被引:1,自引:0,他引:1
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。 相似文献
863.
864.
论循环经济唯物辩证的自然观基础 总被引:2,自引:0,他引:2
孙文营 《中共福建省委党校学报》2007,44(4):2-5
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。 相似文献
865.
Ohne Zusammenfassung 相似文献
866.
Christopher A. Thurber Marge M. Scanlin Leslie Scheuler Karla A. Henderson 《Journal of youth and adolescence》2007,36(3):241-254
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. 相似文献
867.
Marvella A. Bowman Hazel M. Prelow Scott R. Weaver 《Journal of youth and adolescence》2007,36(4):517-527
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. 相似文献
868.
Hazel M. Prelow Alexandra Loukas Lisa Jordan-Green 《Journal of youth and adolescence》2007,36(4):465-476
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. 相似文献
869.
后冷战时期波兰的民族认同与俄罗斯观 总被引:1,自引:0,他引:1
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。 相似文献
870.