三丙酮胺对离体大鼠心肌缺血的保护作用

离体大鼠心脏灌流实验表明,三丙酮胺(TAA)能改善缺血心肌的收缩功能,降低缺血心叽中过氧化产物丙二醛(MDA)含量,保护超氧化物歧化酶(SOD)的活性,提高胞浆肌酸磷酸激酶(CPK)含量,并有效地抑制CaCl_2诱导的血小板聚集作用.     

关于唐山地区中学英语师资现状的调查报告

通过对唐山市361所中学主管教学领导、英语教师进行座谈和问卷调查，分析了中学师资队伍的基本情况，阐述了来自教学第一线教师峄继续教育应开设课程及学习方式的意见和要求，就英语师资培训中的课程结构和培训模式提出了改革建议。     

试论方言口语前后缀中的不字用法

传统语法理论认为“不”字是否定副词,在句子中有不可替代的重要作用。可是在很多方言口语中,“不”字却可以充当前后缀的角色,甚至可省略可替换。本文着重讨论方言口语中“不”字做前缀后缀的种种用法。     

巴罗格作品与环境艺术设计观念

在分析佩·巴罗格雕刻作品所体现的人类文化、人类集体价值、人类善良本质三方面的含义和巴罗格对雕刻材料表现力运用的基础上,进而论述了有关环境艺术的主体观念、环境艺术设计中“环境”观念和环境艺术设计表现力。     

《古代汉语》(修订本)文选注释商兑

本文依据典籍,结合教材,对古代汉语教材一些注释提出了不同的意见。不失为有价值的参考。     

Evaluating the Social Validity of Project TEAM: A Problem-Solving Intervention to Teach Transition Age Youth with Developmental Disabilities to Resolve Environmental Barriers

Project TEAM teaches transition-age youth with developmental disabilities (DD) to identify physical and social environmental barriers and supports, generate solutions to barriers, and request modifications to increase participation. Establishing the social validity of this environment focused intervention with youth and their parents is critical, given the significant shift the intervention represents from rehabilitation’s more traditional focus on body structures and function. University researchers and youth research collaborators conducted a participatory evaluation of the purpose, procedures, and perceived benefits of Project TEAM. Youth with DD (n = 42) provided feedback using three methods: activity voting, a survey, and a focus group. Parents (n = 37) also provided feedback. Results suggest that both youth and parents find Project TEAM acceptable and relevant to youth’s current and future lives. The majority of youth and parents felt Project TEAM fostered independence and empowerment, although some youth and parents reported challenges with the unique environment-focused approach.     

梁实秋与重庆文学

梁实秋抗战时期在重庆生活和创作达8年之久,其创作于重庆北碚的《雅舍小品》(初集)及之后完成的三集,成为中国现代文学的一部重要作品,并具有世界影响。研究梁实秋与重庆文学的关系,是重庆学界的一项重要课题,它对重庆文学和重庆学术研究的繁荣,都将产生积极的推动作用。     

木兰科分类系统初探

根据形态解剖学的主要特征，提出把木兰科分为木莲属、厚壁木属、华盖木属、木兰属、南美盖裂木属、香木兰属、拟单性木兰属、单性木兰属、长蕊木兰属、南洋含笑属、含笑属、合果木属、观光木属、鹅掌楸属等１４个属，并讨论了木兰科的演化途径     

刺翼蚱科一新属一新种(直翅目:蚱总科)

本文报道刺翼蚱科一新属一新种。新属:弯背蚱属Cypholellix gen,nov.的主要特征是前胸背板背面在肩角突然隆起,侧面观近似驼峰形。其模式种为鼎湖弯背蚱Cypholellix dinghuensis sp.nov.     

Spacetime coded eigenbeamforming for downlink frequency-selective correlated fading channels

1 Introduction Space-ti me coding (STC)[1-4]is an emerging tech-nique in communications . Multi-input multi-output(MIMO) signals are encoded in both spatial and tem-poral domains .As a result ,diversity and coding gainsare achieved . Most works to date on this subject arebased on two fundamental assumptions . One is thatthe transmitter does not knowthe channel state infor-mation (CSI) ,i.e.,openloop .The otheris that fad-ing from each base station antenna to any mobile an-tenna is indepen…