我国食品对外贸易对食品工业经济增长影响分析

运用协整检验结果表明中国食品进口与食品工业经济增长、中国食品出口与食品工业经济增长之间构成了长期稳定的均衡关系;运用多变量的Granger因果关系检验发现存在食品出口到食品工业经济增长的单向Granger因果关系,食品工业经济增长到食品进口增长的单向Granger因果关系,以及食品进口增长到食品出口增长的双向Granger因果关系;运用误差修正模型得出在短期内,食品进口、出口对食品工业经济增长有促进作用。     

关于发展高校公益社团的调研报告——以德州学院为例

高校公益社团是大学生服务社会、奉献爱心的载体。参与社会公益活动对提高大学生的社会责任感和使命感具有重要意义。为全面发展高校公益社团,以德州学院公益社团的组织现状、大学生参与情况以及公益服务活动为例,着重对高校公益社团的发展现状、存在问题进行研究,并在此基础上提出推进高校公益社团发展的具体措施。     

专家型—熟手型数学教师课堂提问能力的个案比较研究

通过定性和定量分析发现:专家型教师与熟手型教师在课堂提问程度、提问目的和提问后的思考时间上存在差异.专家教师善于提出富有层次的、能激活学生思维深层参与的启发性问题,并具有较强地灵活调控课堂教学的能力.这些现象表明熟手型教师在依靠自己积淀的丰富教学经验的基础上,只要通过针对性的教师培训、自身经验反思以及积极参与科研等方法就有可能成为专家型教师.     

“天府四川”：神话、历史、现实叠加的区域文化形象——对四川“天府”文化形象的新解读

以＂天府＂作为区域文化形象概念,其内涵随着社会发展应予以丰富和发展,才能适应时代需要。结合历史和当代人对＂天府＂内涵的认识,作为世人向往的地方,＂天府＂象征着＂富庶、兴旺、和谐、智慧、美丽、幸福＂。按照＂天府＂内涵的六大要素,四川在古史神话、历史文明与现实世界三个层面形成了形象叠加,＂天府＂既是古今四川的区域文化形象,也舍四川莫属!     

交通事故所致急性心理创伤症状与羞耻感的特点

目的：了解交通事故所致心理创伤症状与羞耻感的特点,为临床心理医疗提供理论基础。方法：对90例车祸伤的病人采用生活事件冲击量表修订版（ISE-R）、解离性体验量表（DES）和羞耻感量表等自陈式工具,于创伤后7天内进行评定。结果：个性羞耻与AI,侵袭性症状、回避症状与解离体验显著相关;行为羞耻与回避症状和解离体验显著相关;躯体羞耻与解离体验显著相关;家庭羞耻与解离体验显著相关。结论：交通事故所致急性心理创伤症状与非急性心理创伤组相比,心理创伤程度更严重,骨科医师在治疗骨科疾病的同时也应该重视PTSD的发生及其防治,以保证病人较快恢复健康,提高病人的生活质量。     

拟穴青蟹抗菌肽scygonadin在毕赤酵母中的表达及其抗菌活性

采用PCR方法克隆获得拟穴青蟹抗菌肽scygonadin基因成熟肽片段,将其连接到Pichia pastoris酵母表达载体pPIC9K中,构建了分泌表达载体pPICgk-Scy．电击转化毕赤酵母GS115,经表型筛选和PCR鉴定证实了目的基因已稳定整合人酵母基因组中．以甲醇诱导表达阳性克隆,上清中表达产物经过Tricine-SDS-PAGE鉴定与预期的目的蛋白大小（约10ku）相符．并利用琼脂孔穴扩散法证明了表达产物能抑制革兰氏阳性菌和革兰氏阴性菌的生长．     

种族与性别的双重压迫：普里查德土著题材小说中的澳大利亚土著女性

澳大利亚作家凯瑟琳·苏珊娜·普里查德,在她的土著题材作品中,努力克服种族偏见,对土著民和土著文化倾注了同情、理解和尊重;不仅如此,作为一个女性作家,她还对土著女性的不利生存地位给予了特别的关注,这使得她的土著题材作品既有反对种族主义的一面,又有关注性别歧视的一面。本文结合《库娜图》等四部作品,探讨了澳大利亚土著女性在19世纪末至20世纪初的殖民时期所遭受的种族和性别的双重压迫。     

重视文体教学 促进大学英语写作

本文首先探讨文体教学在大学英语中的必要性,并从词汇、句法和语篇三个层面分析论证了文体教学对大学英语写作的启发意义。作者强调大学英语教师应当培养学生的文体意识,提高英语欣赏水平以及写作能力。     

Expertise Differences in the Comprehension of Visualizations: a Meta-Analysis of Eye-Tracking Research in Professional Domains

This meta-analysis integrates 296 effect sizes reported in eye-tracking research on expertise differences in the comprehension of visualizations. Three theories were evaluated: Ericsson and Kintsch’s (Psychol Rev 102:211–245, 1995) theory of long-term working memory, Haider and Frensch’s (J Exp Psychol Learn Mem Cognit 25:172–190, 1999) information-reduction hypothesis, and the holistic model of image perception of Kundel et al. (Radiology 242:396–402, 2007). Eye movement and performance data were cumulated from 819 experts, 187 intermediates, and 893 novices. In support of the evaluated theories, experts, when compared with non-experts, had shorter fixation durations, more fixations on task-relevant areas, and fewer fixations on task-redundant areas; experts also had longer saccades and shorter times to first fixate relevant information, owing to superiority in parafoveal processing and selective attention allocation. Eye movements, reaction time, and performance accuracy were moderated by characteristics of visualization (dynamics, realism, dimensionality, modality, and text annotation), task (complexity, time-on-task, and task control), and domain (sports, medicine, transportation, other). These findings are discussed in terms of their implications for theories of visual expertise in professional domains and their significance for the design of learning environments.     

Bully/Victim Problems Among Preschool Children: a Review of Current Research Evidence

Bullying in schools has been identified as a serious and complex worldwide problem associated with negative short- and long-term effects on children’s psychosocial adjustment (Smith 1999; Ttofi and Farrington, Aggressive Behav 34(4):352–368, 2008). Entering kindergarten is a crucial developmental step in many children’s lives mainly because it is within this context where they participate, for the first time, as members in a stable peer group and well-organized team activities. Consequently, preschool may be the first context beyond the home environment where children’s difficulties in social interactions with peers can be primarily detected and assessed by adults and professionals. This paper reviews recent empirical evidence over the nature and different aspects of bullying among preschool children. Recent findings concerning the development of preschool bullying and its prevalence, family and genetic factors, gender and age differences, participant and peripheral roles, school context, methodological issues, and prevention policies are reviewed while directions for future research are addressed.