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31.
建立了液相色谱/串联质谱法测定鳗鱼中恩诺沙星,环丙沙星,诺氟沙星,氧氟沙星的方法。对分离和检测这四种兽药残留的液相色谱条件、质谱条件、样品前处理方法等作了详细的研究。用乙腈萃取样品中的残留物,在氮气保护下将萃取液浓缩干,加流动相1.0mL溶解残渣,正己烷液液萃取,弃上层液,下层溶液用作液相色谱分析荧光检测或质谱检测。在鳗鱼样品中添加四种残留物,添加浓度分别为0.01,0.050和0.100mg/kg,平均回收率(n=6)在70 ̄84.3%之间,相对标准偏差为3.0%~6.3%。 相似文献
32.
The objective of this study was to examine the links between coping and attachment. In a longitudinal study of 112 participants, coping behavior was assessed at five points in time during adolescence (starting at the age of 14 years) and early adulthood. In addition, at the age of 21 years, state of mind regarding current and earlier attachment experiences was assessed by employing the Adult Attachment Interview (AAI). In both adolescence and early adulthood, differences in coping styles were found to be related to differences in attachment. Individuals classified as secure dealt with their problems more actively by using their social network during adolescence and at the age of 21 years. Both secure and dismissing individuals used more internal coping than those with a preoccupied state of mind. Latent growth curve modeling revealed that differences in active and internal coping between secure and insecure individuals applied to the rate of change in these coping styles between 14 and 21 years, with participants in the secure group showing much steeper growth in both coping styles. Only minor differences were found with respect to withdrawal as a coping style. The results represent first evidence that coping trajectories during adolescence and young adulthood are linked with attachment state of mind. 相似文献
33.
王雷 《沈阳师范大学学报(社会科学版)》2005,29(4):1-5
高等院校参与建设学习型社会,是高等院校从事社会服务的一个重要理念。其涵义是通过高等院校的社会服务来参与办理各种社会教育事业,其目的是为了建设学习型社会,拉动和满足全体社会成员对各种教育的需求。建设学习型社会,必须从开放教育的视角深入探讨高等院校参与建设学习型社会的教育体制、政策、途径与方式,使高等院校的社会服务以参与办理社会教育为主,并通过知识群体推动学习型社会的形成。 相似文献
34.
The authors review the trends in the use of computers in the delivery and support of career guidance and counseling identified at the symposium International Perspectives on Career Development. The papers presented emphasized that 20th‐century computer‐based systems continue to be used, mainly delivered via the World Wide Web. These systems are enhanced through audio, video, graphics, strategies to provide needs assessment, and support by cybercounselors or expert system design. The papers also revealed a new trend: the use of elegant Web sites to store and search immense libraries of resources needed by professionals and clients and to facilitate communication and collaboration among professionals in cyberspace. Concerns, issues, and resources related to many areas, including the readiness of clients to use computer‐based systems, were also raised; existing sources of guidelines are noted. 相似文献
35.
影响服务业国际竞争力的因素分析 总被引:4,自引:1,他引:3
目前国内服务经济理论界对影响服务业国际竞争力因素的分析,大多用波特的国家竞争优势理论进行解释,同时应用于服务贸易研究。并且大多是定性的分析,并没有从实证的角度进行验证,本文从实证角度对影响服务业国际竞争力的因素进行探析,分析了影响中国服务业竞争力的主要因素,并提出提高中国服务业竞争力的若干政策建议。 相似文献
36.
A growing literature examines the empirical relationship between the joint reproductive preferences of marital partners and reproductive outcomes in Africa. Less explored is how spousal power in decision making may be influenced by lineage type. Using pooled data from Ghana, we investigate how lineage affects gendered reproductive decision outcomes and find some evidence that matrilineal women are more able than nonmatrilineal women to translate their reproductive preferences into action consistent with their goals. 相似文献
37.
郭蕾 《河北理工大学学报(社会科学版)》2007,7(1):10-13
冯友兰先生的哲学思想在中国近代哲学思想中占有非常重要的地位,他的“三史”和“六书”影响广泛,他的“新理学”体系,是对宋明理学的继承和发展,他的人生境界说,还有融入其中的中西文化观,对中国哲学发展的思考无不表明冯友兰先生是一位伟大的哲学家和思想家。将2005年学术界关于冯友兰哲学思想研究的论文作一综述,以纪念冯友兰先生诞辰110周年。 相似文献
38.
马明奎 《西北民族大学学报》2004,(4):78-83
从生态美学的角度对蒙古族作家满都麦的作品作全新解读,而解读本身即是生态美学意义上的人格重建过程,同时也是价值体系和道德体系重建的过程。从某种意义上讲,这意味着人类文化的转型,具有全人类的意义。 相似文献
39.
Lisa A. Gennetian Greg Duncan Virginia Knox Wanda Vargas Elizabeth Clark‐Kauffman Andrew S. London 《Journal of research on adolescence》2004,14(4):399-423
Using data from 8 random assignment studies and employing meta‐analytic techniques, this article provides systematic evidence that welfare and work policies targeted at low‐income parents have small adverse effects on some school outcomes among adolescents ages 12 to 18 years at follow‐up. These adverse effects were observed mostly for school performance outcomes and occurred in programs that required mothers to work or participate in employment‐related activities and those that encouraged mothers to work voluntarily. The most pronounced negative effects on school outcomes occurred for the group of adolescents who had a younger sibling, possibly because of the increased home and sibling care responsibilities they assumed as their mothers increased their employment. 相似文献
40.
孔子项託相问事考论--以敦煌汉文本《孔子项託相问书》为中心 总被引:2,自引:2,他引:0
刘长东 《四川大学学报(哲学社会科学版)》2003,3(2):61-71
以敦煌汉文本<孔子项託相问书>为中心,考论了项託的姓名里籍、事迹及其文化形象,项託的神格化,<孔子项託相问书>的民间性及其文化内涵等问题. 相似文献