幻的浪漫梦的真实--论苏、辛的梦幻词

文章首先简述宋人梦幻词的分期。提出苏、辛梦幻词的贡献在于苏、辛借鉴前人的表现手法，尤其是庄、骚、李白以来的浪漫主义手法、创造了梦幻词的诸多范式：天问式、游仙式、骚体式、俳谐式、遥相思念式、诡谲象喻式等。苏、辛梦幻词之异在于苏词清幽而旷达，辛词激越而悲壮沉郁。他们开拓了宋人梦幻词的表现领域，使宋人梦幻词的体式更加完美。     

Co(II)——双水杨醛乙二胺显色反应的研究与应用

在 pH =5的邻苯二甲酸氢钾 -氢氧化钠的缓冲溶液中 ,钴 (II)与双水杨醛乙二胺形成黄色配合物 .该黄色配合物的λmax =380nm ,ε =5 .5x10 3L·mol- 1 ·cm- 1 ,Co(II)的质量浓度为 0～ 4 7mg 10ml时符合比尔定律 .本方法用于测定VB12药物中的钴结果良好     

Allograftic bone marrow-derived mesenchymal stem cells transplanted into heart infarcted model of rabbit to renovate infarcted heart

Objective: To investigate the directed transplantation of allograftic bone marrow-derived mesenchymal stem cells (MSCs) in myocardial infarcted (MI) model rabbits. Materials and Methods: Rabbits were divided into 3 groups, heart infarcted model with MSCs transplanted treatment (MSCs group, n=12), heart infarcted model with PBS injection (control group, n=20), sham operation with PBS injection (sham group, n=l 7). MSCs labelled by BrdUrd were injected into the MI area of the MSCs group. The same volume of PBS was injected into the MI area of the control group and sham group. The mortality, LVIDd, LVIDs and LVEF Of the two groups were compared 4 weeks later. Tropomyosin inhibitory component (Tn I) and BrdUrd immunohistochemistry identified the engrafted cells 4 weeks after transplantation. Result: The mortality of the MSCs group was 16.7% (2/12), and remarkably lower than the control group's mortality [35% (7/20) (P＜0.05)].Among the animals that survived for 4 weeks, the LVIDd and LVIDs of the MSCs group after operation were 1.17±0.21 cm and 0.74±0.13 cm, and remarkably lower than those of the model group, which were 1.64±0.14 cm and 1.19±0.12 cm (P＜0.05); the LVEF of the MSCs group after operation was 63±6%, and remarkably higher than that of the model group,which was 53±6% (P＜0.05). Among the 10 cases of animals that survived for 4 weeks in the MSCs group, in 8 cases (80%),the transplanted cells survived in the non MI, MI region and its periphery, and even farther away; part of them differentiated into cardiomyocytes; in 7 cases (70%), the transplanted cells participated in the formation of blood vessel tissue in the MI region. Conclusion: Transplanted allograftic MSCs can survive and differentiate into cardiomyocytes, form the blood vessels in the MI region. MSCs transplantation could improve the heart function after MI.     

Usage patterns and social circles on Facebook among elderly people with diverse personality traits

Elderly people are exposed to information technologies to keep them in touch with younger generations. Among various technologies, social network sites (SNSs) are seldom used by the majority of elderly people. To bridge the digital divide, it is necessary to dig deeply into the minority elderly users of SNSs. This study explores usage patterns of elderly Facebook users and further investigates how their diverse characteristics influence their usage and social circles. Three findings were derived. First, a sharp digital divide on SNSs does exist, and existing elderly Facebook users are mainly the dabblers. Second, personality profiling could predict elderly people’s SNS usage behaviors. Elderly users with a high level of openness and extroversion have more friends, status updates, and group memberships, and those with a high level of conscientiousness have fewer likes and status updates. Elderly users are likely to seek insightful content on SNSs. Moreover, they may have a higher degree of emotional stability than young users when using SNSs. Third, elderly people tend to build small social circles on SNSs that “copy” the family relationship in the real world; whereas, they build large social circles with interests and hobbies that are difficult to share in the real world. Based on these results, detailed suggestions are presented for better targeting elderly people in ways that move them toward SNSs.     

课程改革进程中教师消极行为研究

教师消极行为的产生是课程改革进程中出现的必然现象。本文试图对新课程改革进程中的教师消极行为作初步简析，揭示教师消极行为的表现特征，找出它的成因，并尝试提出初步的对策思考。     

世俗情欲的浪漫升华——新生代女作家的“诗化”小说论

一部分新生代女作家的“身体写作”具有“诗化”特征。这或诡异、或疯狂的“诗化”风格与古代的“艳诗”在精神上相通,又具有现代派文学集唯美与溢恶于一体的气质。她们对“飞”的感觉的集中渲染让她们的文字也产生了节奏飞快、高速旋转的效果。因此,她们独具特色的“诗化”小说丰富了我们对于“诗化小说”这一文体的理解。     

引导聋生快乐学习数学的策略刍探

对于聋生而言,快乐学习是走向成功的重要途径。要做到这一点,教师就要注重培养聋生的数学兴趣,教给聋生养成良好习惯的方法,培养聋生的数学阅读能力,让聋生在快乐的氛围中学习数学,提高适应社会的能力。     

教材弹性建设:经验、困境与对策

教材弹性建设问题的提出,是教育改革发展的产物,它具有一定的理论依据和政策基础,并在我国教材编制中经历了多种类型,引起学校教育观念的变化。我国教材弹性建设的发展在经历了艰难的政策、理论、实践探索之后,仍然存在着诸多问题,面临着一些困境,这就需要我们采取适当的对策以取得良好的效果。     

钢铁材料高抗蚀性无毒发黑处理的研究

研究一种钢铁材料高抗蚀性、无毒发黑新工艺,探讨了形成黑化膜的机理及影响黑化膜质量的主要因素,并对黑化膜的抗蚀性进行了对比试验。     

长尾理论视角下的旅游电子商务产品营销研究

对旅游电子商务在线营销发展阶段的科学判断有助于当前旅游目的地城市转型升级.以国内15个城市共计574件在线旅游产品的销量为因变量指标,将旅游目的地在线产品价格、种类以及评论情况作为自变量指标,立足于长尾理论并利用STATA回归分析方法,对旅游目的地产品在线销售影响因素进行分析.研究结果显示,百分法和绝对法两种定义法之下表现出长尾效应的目的地城市多集中在东部沿海地区,其中广州在两种定义法下均表现出显著的长尾效应.头、尾部市场销售影响因素对比分析表明,尾部市场受种类以及评论数的积极影响更小,受价格因素的消极影响更大.