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991.
Ian H. Wilson 《Long Range Planning》1973,6(2):39-42
Without in any way denying that there are forces for stability, I want to state, as strongly as I can, my conviction that change is now more rapid, more complex and more pervasive than ever before in human history. There are forces loose in the world, particularly in the ‘post-industrial society’ of the United States, that go far beyond the youth movement in creating change. As a result, it is utterly unrealistic to pretend that business can continue to plan its strategies in the traditional mode. 相似文献
992.
Hübner Maria Martha Costa Austin John Miguel Caio F. 《The Analysis of verbal behavior》2008,24(1):55-62
In the current study, tacts with positive qualifying autoclitics for reading were reinforced in order to determine if this procedure would increase the time spent reading by participants. Participants included 5 children, between 9–10 years old. Participants were individually exposed to 4 free operant sessions during which they were instructed to independently choose play activities. During pre- and post-treatment conditions, no consequences were provided for choosing reading. In addition, 4 treatment sessions were conducted on days separate from the free operant session days, during which the experimenter praised each positive reading-related statement emitted by the participant. Following treatment sessions, 4 out of 5 participants increased the time allocated to reading, suggesting that reading could be increased when praise is delivered contingent upon positive reading-related verbalizations. 相似文献
993.
994.
This paper discusses the marketing concept and its impact on the strategy and structure of the business organization. The popular dictum that every firm should implement the marketing concept in its extreme form is challenged. Considerations of the overall structure of the firm, the time period in question, the amount of resources available are included in the determination of the degree of implementation which should be made. Finally, the conclusion indicates that the popular view that a change in environment necessitates a change in the organizational structure should be modified. The cost may be too great for the benefits derived. 相似文献
995.
Lisa Strohschein Anne H. Gauthier Rachel Campbell Clayton Kleparchuk 《Journal of marriage and the family》2008,70(3):670-683
In this paper, we tested the resource dilution hypothesis, which posits that, because parenting resources are finite, the addition of a new sibling depletes parenting resources for other children in the household. We estimated growth curve models on the self‐reported parenting practices of mothers using four waves of data collected biennially between 1994 and 2000 on a nationally representative sample of 2,082 Canadian children aged 2 to 5 at initial interview and in continuously intact, two‐biological‐parent households. Results showed that when new children were added to the household, mothers exhibited declines in positive interaction, but increased their levels of consistent parenting. Taken together, these findings suggested that parenting resources were reallocated, rather than diluted, when family size increased. 相似文献
996.
997.
Given observations on an m × n lattice, approximate maximum likelihood estimates are derived for a family of models including direct covariance, spatial moving average, conditional autoregressive and simultaneous autoregressive models. The approach involves expressing the (approximate) covariance matrix of the observed variables in terms of a linear combination of neighbour relationship matrices, raised to a power. The structure is such that the eigenvectors of the covariance matrix are independent of the parameters of interest. This result leads to a simple Fisher scoring type algorithm for estimating the parameters. The ideas are illustrated by fitting models to some remotely sensed data. 相似文献
998.
Tahu H Kukutai 《Journal of marriage and the family》2007,69(5):1150-1161
Studies of multiethnic families often assume the ethnic identification of children with the minority group results from the minority parent. This study examines an alternate view that mainstream parents also play an important role in transmitting minority ethnicity. It explores this argument using data from New Zealand on the ethnic labels mothers assign to their Maori‐European children. It finds that European mothers are just as disposed as Maori mothers to designate their child as Maori, either exclusively or in combination. Two explanations, grounded in ethnic awareness and gendered inheritance, are proposed. Although neither satisfactorily predicts maternal designation decisions, the readiness of European mothers to identify their child as Maori underscores their role in diffusing Maori ethnicity. 相似文献
999.
This study investigates the completion of the Ph.D. in economics. We use ex ante information, based upon reviewing individual applications from former doctoral students. Students need different skills to succeed at each distinct stage of the doctoral program. Significant determinants for passing the comprehensive exams include Graduate Record Exam (GRE) verbal and quantitative scores, a Masters degree, and prior focus on economics. By contrast, research motivation and math preparation play significant roles in completing the dissertation. GRE scores become insignificant for completion in the generalized ordered logit estimates, which emphasize the sequential nature of the Economics Ph.D. program . ( JEL I210) 相似文献
1000.
Jonathan H. Turner 《Symbolic Interaction》2007,30(4):501-530
Extreme violence revolves around actions of individuals who are emotionally aroused and willing to kill themselves, if need be, to inflict harm on enemies. Terrorism, gangbanging, and genocide are conspicuous examples of extreme violence. This violence is ultimately driven by repressed negative emotions about self that are transmuted into variants of anger and combinations of anger with satisfaction‐happiness to produce emotions such as hatred, righteous anger, and vengeance. This theory combines symbolic interactionism's emphasis on identity and self with key ideas from gestalt theories, psychoanalytic theories, and interaction ritual theory as well as data from primatology, evolutionary biology, and neurology. I explain extreme violence as the outcome of several converging forces: the neurological capacity for humans as evolved apes to experience and express a large palate of high‐intensity emotions, the experience of shame in key institutional spheres, the repression of shame (and, at times, guilt and alienation as well as other highly charged negative emotions), the intensification and transmutation of these repressed emotions into variants and elaborations of anger, the making of external attributions blaming external targets for negative experiences, the portrayal of these targets in highly negative terms, and the charging up of positive emotions in interaction rituals directed at inflicting harm on external enemies. 相似文献