膜攻击复合物对继发性脑损伤的影响

脑损伤后普遍存在的炎性反应激活补体并通过多种途径导致和加重继发性脑损伤。膜攻击复合物具有直接破坏血脑屏障、促使红细胞溶解、促进释放细胞因子、氧自由基和金属基质蛋白、加剧炎症反应的生物特性,从而加重继发性脑损伤。本文对膜攻击复合物造成继发性脑损伤的研究进行综述,希望能对相关研究和法医学鉴定提供参考。     

用串联质谱法提高毒鼠强的检测灵敏度

目的建立一种能避免生物样品中杂质的干扰,提高毒鼠强检测灵敏度的方法。方法应用串联质谱法,对生物样品中的毒鼠强进行检验研究。结果在样品无需净化的情况下,以m/z240为母离子,当激活电压在0.8V左右时,毒鼠强二次电离的离子碎片适中,质谱谱图清晰;此时进样量为1.0ng的毒鼠强,其信噪比(s/n)为87,经与全扫描质谱法进行比较灵敏度大为提高。结论该方法能有效提高毒鼠强检测灵敏度,适用于同类案件检验。     

我国大众教育存在的问题与路径选择

高等教育大众化是现代工业社会发展的必然要求,也是当代教育的重要发展趋势.伴随着扩招浪潮,我国的高等教育实现了大众化.高等教育大众化自然利于提高全民素质,实行教育公平,但政府硬性推行的结果使得我国高等教育的大众化处境尴尬,并面临着诸多问题.如何走出这种困惑,如何克服大众化发展过程中遇到的困难,借鉴他国大众化教育模式,寻找我国高等教育大众化的发展路径是我们应考虑的问题.     

大众文化与大学生思想政治教育

21世纪,随着经济的发展,文化的全球化、网络化相伴突出。西方意识形态通过文化传播对青年产生了不可忽视的影响,甚至动摇了部分大学生对共产主义理想的信仰;另外高校思想政治教育的实效性较难得到全面发挥,从而影响了大学生主流意识形态的提升与巩固。鉴于大众文化对青年学生理想信念产生的严重影响,高校学生思想政治教育需要作出新的思考。     

媒介传播中的文化差异与文化意识

传者与受者的文化差异产生传播的意义,文化意识也需要在这种差异中构建和保持。在文化质差中,传者需要保持明确的主流文化意识;在文化位差中,传者需要树立一定的精英文化意识;在文化时差中,传者则需要具备较强的大众文化意识。传受双方如果不存在任何文化差异,那么传者的文化意识也可以淡化乃至取消。     

关于对群体性事件发展规律及对策分析

当前,群体性事件已经成为影响社会稳定的突出问题,作为社会发展进程中的产物,群体性事件伴随着社会发展形态的进化而不断变化,本文试从社会学和政治学的角度对其发展规律进行了分析,并着重探索目前社会条件下对其有较强操作性的解决方案。     

媒体传播效果与标题制作

标题的制作对扩大媒体的影响力至关重要。《现代媒体编辑技巧》一书的作者引述一项有关报纸的调查显示:参与调查的读者中,56%只阅读标题,而阅读正文的,只有25%。所以该书作者多萝茜·A·鲍尔斯和黛安·L·博登特别强调:"在今天繁忙的社会中,报纸读者在很大程度上只是标题的浏览者"。这一事实告诉我们:要想使媒体有吸引力,就要先使标题有吸引力,否则就可能功亏一篑。     

The Peer Appearance Culture During Adolescence: Gender and Body Mass Variations

The purpose of this research was to examine gender and body mass, as factors linked to perceived experiences within the peer appearance culture. The sample included 215 girls and 200 boys who were either in 7th grade or 10th grade. Students provided self-reports on experiences in three domains: appearance culture among friends (appearance conversations and diet/muscle talk), peer evaluations (peer appearance pressure, appearance teasing, and vicarious peer teasing), and peer acceptance concerns (appearance-based acceptance, peer appearance comparison). The results indicated that although girls reported more appearance conversations, boys perceived more appearance pressure and teasing. Boys also admitted that they talked with friends about muscle building at a rate greater than girls talked about dieting. BMI showed distinct gender patterns. BMI was a key attribute that unified the experiences within the appearance culture for overweight girls. Among the boys, BMI was associated with differentiated experiences for underweight and overweight participants.Associate Professor in Educational Psychology at the University of Washington. She is a developmental psychologist specializing in the contributions of peers to body image and social-emotional well-being during adolescence. Research interests include body image during adolescence and gender differences.Doctoral student at the University of Washington in Human Development and Cognition. Her research focuses on the social-emotional development of adolescents, academic and appearance social comparisons, and issues related to gender and science. Research interests include body image during adolescence, gender differences, social comparison, and academic competence.     

群众路线是党的生命线

群众路线是我党的生命线 ,是马克思主义历史唯物主义世界观和科学方法论的体现 ,只有始终不渝地坚持群众路线 ,才能成为广大人民群众根本利益的忠实代表。     

不断增强党的阶级基础和扩大党的群众基础的政治意蕴

"三个代表"要求加强和改进党的建设,必须强调党的阶级性和群众性,因为党的阶级性是党的先进性的根本依托,群众性是党的先进性的重要支点,阶级性和群众性的有机结合是"三个代表"要求的生动体现。