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91.
92.
  总被引:5,自引:0,他引:5  
Variations in pubertal timing, specifically age at menarche, have been associated with several antecedents, both genetic and environmental. Recent research has considered a broader range of environmental stressors and their influence on the development of the reproductive system. In this investigation, the following possible antecedents were considered: ( a ) hereditary transmission, ( b ) weight and weight for height, ( c ) stressful life events, ( d ) family relations, ( e ) absence or presence of an adult male in the household, and ( f ) psychological adjustment. Subjects were 75 premenarcheal girls between the ages of 10 and 14 drawn from a larger longitudinal investigation of adolescent development. Girls were from white, well-educated, middle- to upper-middle-class families and attended private schools in a northeastern urban area. While breast development, weight, family relations, and depressive affect were predictive of age at menarche, family relations predicted age at menarche above the influence of breast development or weight. A trend for maternal age at menarche to predict adolescent's age at menarche was found. Weight for height, presence of an adult male in the household, and stressful events were not predictive of age at menarche. These complex interactions of biological and psychosocial development demonstrated here may account to some extent for the inter- and intraindividual variation observed in pubertal development.  相似文献   
93.
OBJECTIVE: There were three aims: (1). assess the prevalence of reported exposure to negative caregiver strategies in a community-based African-American population, (2). examine the sources of variation in caregiver parenting strategies, including demographic variables and child characteristics, (3). investigate whether mental disorders in young adulthood may differ based on reported degree of exposure to negative strategies. METHOD: The participants were 1197 African-Americans involved in a 1999-2001 young adult follow-up (age M=19.6, SD=.6) of an evaluation of school-based interventions in the Baltimore, MD metropolitan area. Measures included teacher-report of child aggression in first grade, parent-report of demographic variables in first and sixth grade, and young adult self-report of symptomatology, suicidal behaviors, and childhood caregiver discipline strategies. RESULTS: Fifty-four percent of the sample reported some use of physical discipline by caregivers. Lower family income and younger caregiver age, as well as teacher reports of child aggression, were related to reports of caregiver's high use of negative strategies. In addition, young adults who reported a high rate of negative caregiver strategies had a significantly increased risk for psychopathology and were over twice as likely to have experienced a history of suicidal ideation than those reporting low exposure.CONCLUSIONS: The results demonstrate the importance of examining variation in this population, with the poorest and the youngest using negative parenting strategies more frequently. In addition, the present study replicated previous findings of the link between negative caregiver discipline strategies and psychopathology. This association appears robust across diverse populations. The implications for preventive interventions are discussed.  相似文献   
94.
A synthesis and meta-analysis of the extant research on the effects of storybook read-aloud interventions for children at risk for reading difficulties ages 3 to 8 is provided. A total of 29 studies met criteria for the synthesis, with 18 studies providing sufficient data for inclusion in the meta-analysis. Read-aloud instruction has been examined using dialogic reading; repeated reading of stories; story reading with limited questioning before, during, and/or after reading; computer-assisted story reading; and story reading with extended vocabulary activities. Significant, positive effects on children's language, phonological awareness, print concepts, comprehension, and vocabulary outcomes were found. Despite the positive effects for read-aloud interventions, only a small amount of outcome variance was accounted for by intervention type.  相似文献   
95.
企业文化特征与竞争情报相互关系研究述评   总被引:1,自引:0,他引:1  
在全面梳理国内外有关情报文化理论研究的基础上,对近十年来企业文化特征与竞争情报相互关系的理论研究进展进行了评述,认为目前在该领域已形成了\"情报文化基础说\"、\"情报文化过程说\"和\"情报文化影响因素说\"三种主要观点,但是也存在着缺少针对不同国家和企业文化类型特征的企业文化与竞争情报相互关系的理论研究和实证分析,因而难以为各国丰富多彩的企业竞争情报实践提供理论指导等突出问题。  相似文献   
96.
Using WISC, WISC-R, and WPPSI subtest scores recategorized according to the Bannatyne scheme, the study uncovered evidence for the existence of an Indian Wechsler Scale performance pattern that is different from that found in normal and learning disabled groups. The Indian pattern finds spatial abilities more well developed than sequencing skills, which are superior to conceptual and acquired knowledge performances. The sample was composed of 142 Indian children, primarily Ojibwa (Chippewa). Supporting hypotheses addressed differences between groups of traditional Indian children and those who are more Anglo acculturated. The traditional children evidenced the Indian pattern of recategorized Wechsler subtest performance, while the more acculturated groups did not. Discussion of results centers on factors that may be related to the Indian pattern, such as cultural heritage, otitis media, and the school curriculum.  相似文献   
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A comparison of the development of reading ability among adults with that of children—from the lowest levels of literacy to the most advanced. Included in the comparison are characteristics of adults at each level of development, the kind of instruction that will help bring them from lower to higher levels, and the particular difficulties they experience at the various levels. The article concludes with a historical overview of the changes in literacy standards and needs in the United States and the growing recognition that among the adult illiterates, particularly native English speakers who have very limited reading skills, are large numbers who have dyslexia. This article is based, in part, on an earlier paper, “New Views on Developing Basic Skills with Adults,” presented at the National Conference on Adult Literacy, Washington, D.C., January, 1984.  相似文献   
100.
In this position paper-one of six care practice papers published by Lamaze International and reprinted here with permission-the benefit of continuous labor support is discussed and presented as an evidence-based practice that helps promote, protect, and support normal birth. The paper is written for childbearing women and their families. Women with continuous support are less likely to have a cesarean, an instrument delivery, and regional anesthesia. They are also less likely to report dissatisfaction with or negatively rate their childbirth experience. The value of the doula for both the laboring woman and her labor partner is discussed. The accompanying commentary-written by a leading proponent of maternity care practices-supports evidence that promotes continuous labor support. Lamaze International encourages women to plan for a supportive birth environment that includes continuous support.  相似文献   
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