首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   315篇
  免费   24篇
各国政治   15篇
工人农民   13篇
世界政治   42篇
外交国际关系   38篇
法律   127篇
中国政治   2篇
政治理论   101篇
综合类   1篇
  2023年   2篇
  2022年   1篇
  2021年   4篇
  2020年   3篇
  2019年   13篇
  2018年   13篇
  2017年   16篇
  2016年   17篇
  2015年   9篇
  2014年   11篇
  2013年   46篇
  2012年   10篇
  2011年   10篇
  2010年   7篇
  2009年   8篇
  2008年   11篇
  2007年   12篇
  2006年   7篇
  2005年   7篇
  2004年   9篇
  2003年   12篇
  2002年   8篇
  2001年   8篇
  2000年   5篇
  1999年   2篇
  1998年   7篇
  1997年   5篇
  1996年   8篇
  1995年   3篇
  1994年   2篇
  1993年   3篇
  1992年   2篇
  1991年   4篇
  1990年   9篇
  1989年   3篇
  1988年   6篇
  1987年   5篇
  1986年   2篇
  1985年   4篇
  1984年   3篇
  1983年   6篇
  1982年   3篇
  1981年   1篇
  1980年   2篇
  1978年   3篇
  1976年   5篇
  1973年   1篇
  1967年   1篇
排序方式: 共有339条查询结果,搜索用时 15 毫秒
121.
The impact of a court service that is set up to enforce access orders is measured from the perspective of 70 children whose parents were program participants in the service. Children's perception of conflict diminished significantly over the 6-month period of service involvement. Children improved in their overall and school adjustment when visits with their noncustodial parents were more frequent. They were less depressed when they had quality relationships with both their mother and father. Children perceived more conflict as visits increased, but the negative impact was minimal.  相似文献   
122.
123.
124.
125.
126.
The dynamics of separation anxiety and its potential impact upon restriction of legal visitation in preschool age children is discussed. The interplay between adult personality characteristics and the child's developmental level is inextricably intertwined to generate separation fears. This interplay is presented within a theoretical framework of interaction. Unfortunately, the child's reactions to separation are frequently misinterpreted by the parents as indications of some mistreatment by the former spouse. Although adjustment difficulties in preschool age children coping with divorce are likely, the pattern of disturbance associated with separation anxiety is predictable and occurs almost exclusively with temporary removal from the primary parent. Behavioral health and legal professionals are cautioned against allowing such behavioral disturbance to be utilized by combative parents to deny, restrict or abridge scheduled visitations with the nonresidential parent. Requests for private custody evaluations have increased dramatically in the past decade. Behavioral health professionals often find themselves being jointly stipulated to by disagreeing parties, or directly appointed by the court, to help formulate a residential plan to meet “the best interests of the children” affected. When assessing divorcing families with young children, varied adjustment patterns are observed. However, as Wallerstein and Kelly (1980) discovered, almost all children are adversely affected by the family rupture, at least on a short-term basis. Surprisingly less than 10 percent of the children experienced relief following the parental decision to divorce, despite the degree of explosiveness which may have characterized the dysfunctional marital relationship. Further, the particular response style exhibited by the children was primarily dependent upon the developmental and emotional level the child attained prior to the time of divorce. While positive adjustment has been correlated with an absence of feuding or animosity between the divorcing parents (McKinnon & Wallerstein, 1986), preschool children seem quite vulnerable to adjustment difficulties. Evidence has also begun to accumulate to suggest that divorce has a more serious impact upon boys than girls (Hetherington, 1979). Problems frequently surface during times of exchange, particularly when parents are actively engaged in battle. At its worst, these extreme maladjustments may resemble what appears to be a separation anxiety. Again, the Wallerstein and Kelly (1980) studies reported that preschool age youngsters displayed fright, exhibited regressions, confusion, increased aggression, maintained disruptive fantasies, and experienced guilt. While most of these symptoms remit within a year to a year and a half following divorce, continued bickering and conflict between the parents either prevents resolution, or may even exacerbate, these symptoms later. The purpose of this paper is to discuss the phenomenon of separation anxiety in greater detail, and to provide professionals aiding divorcing families with preschool age children sufficient information to recognize and understand these problems. Hopefully, this knowledge will facilitate those entrusted with making custodial-visitation recommendations, the confidence to follow through with agreed visitation plans despite what at first may appear to be discomfort to the child.  相似文献   
127.
128.
129.
Forensic anthropologists are more often turning to nondestructive methods to assist with skeletal analyses, specifically for trace elemental analyses. Portable XRF (pXRF) instruments are versatile and are able to be used in diverse settings or for specimens of a shape and size that cannot be accommodated by laboratory‐based instruments. Use of XRF requires knowledge of analysis parameters such as X‐ray penetration and exit depth. Analysis depth was determined by examining pure elements through known thicknesses of equine bone slices. Correlation between the element's X‐ray emission energy and the depth of reading was observed. Bone surfaces from a small unknown historic cemetery were analyzed before and after sanding of the periosteal surface to observe possible changes in XRF readings based on potential diagenesis. Results validate the pXRF device as a powerful and convenient instrument for nondestructive analysis, while highlighting limitations and considerations for the analysis of osseous materials.  相似文献   
130.
As China and the United States explore how to craft a "new type" .or "new model" of bilateral relations, a key challenge will be deepening cooperation on a series of shared security issues. Alongside problems on the Korean Peninsula, cyber security, and other matters, is preserving peace and stability in East Asia's maritime regions, especially in the context of ongoing disputes in the Yellow, East China, and South China seas.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号