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961.
Susan J. Spieker Nancy C. Larson Steven M. Lewis Rachelle D. White Lewayne Gilchrist 《Child and Adolescent Social Work Journal》1997,14(5):335-364
The cognitive and behavioral status at age six years of 185 children of adolescent mothers (60.5% boys) were assessed using the mother (CBCL) and teacher (TRF) report forms of the Child Behavior Checklist and the Bracken Basic Concepts Scale. There was evidence for impairment in all areas of functioning. More than half of the sample exceeded the borderline clinical cutoff (T = 60) on either the CBCL or TRF Total Problem score, and nearly half the sample had Bracken scores that were more than 1 SD below the normative mean. Only 26.9% of the children were in the normal range on all three measures. These results are discussed in terms of implications for social work practice with children and adolescent mother families. 相似文献
962.
E. A. Hammel 《Revue europeenne de demographie》1985,1(2-3):265-290
Crude birth, death and marriage rates are examined for the Croatian military defence zone andcordon sanitaire against Turkey for the period 1830–1847. From 20 to 80 per cent of the variance in medium- and short-term swings in rates can be attributed to epidemics and fluctuations in grain harvest and livestock holdings. Standardization of the data to adjust for extreme ecological variation between micro-regions is essential. The ‘Malthusian’ status of this late feudal population is established, at the outset of long-term fertility decline. 相似文献
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964.
Despite a recognized need for a global mindset, opportunities for US business school students to gain hands‐on diversity training regarding intercultural issues remain rare. The reasons for this neglect include a lack of agreement on how to teach intercultural awareness and a paucity of faculty qualified to do so. In order to introduce intercultural education into a core business course, students were offered the opportunity to participate in an extra‐credit project that required the development of a proposal for an international joint venture and afforded them the chance to learn about each other while pursuing a superordinate goal of value to each. Thirty‐nine cross‐cultural teams were created, each of which had a partner from the US and a partner from a different country. Both quantitative and qualitative analyses revealed that the value of the project was closely related to the amount of learning that reportedly took place in both the business and cultural realms. Importantly, 73% of the students reported a strong interest in meeting people from different cultures as a result of participation in the project. 相似文献
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969.
Urban tree cover: an ecological perspective 总被引:11,自引:4,他引:7
Zipperer Wayne C. Sisinni Susan M. Pouyat Richard V. Foresman Timothy W. 《Urban Ecosystems》1997,1(4):229-246
Analysis of urban tree cover is generally limited to inventories of tree structure and composition on public lands. This approach provided valuable information for resource management. However, it does not account for all tree cover within an urban landscape, thus providing insufficient information on ecological patterns and processes. We propose evaluating tree cover for an entire urban area that is based on patch dynamics. Treed patches are classified by their origin, structure, and management intensity. A patch approach enables ecologists to evaluate ecological patterns and processes for the entire urban landscape and to examine how social patterns influence these ecological patterns and processes. 相似文献
970.
John E. Kolassa 《Scandinavian Journal of Statistics》1997,24(4):523-530
This paper discusses recovery of information regarding logistic regression parameters in cases when maximum likelihood estimates of some parameters are infinite. An algorithm for detecting such cases and characterizing the divergence of the parameter estimates is presented. A method for fitting the remaining parameters is also presented . All of these methods rely only on sufficient statistics rather than less aggregated quantities, as required for inference according to the method of Kolassa & Tanner (1994). These results are applied to approximate conditional inference via saddlepoint methods. Specifically, the double saddlepoint method of Skovgaard (1987) is adapted to the case when the solution to the saddlepoint equations exists as a point at infinity 相似文献