关于文学语言的几点思考

文学是用语言构筑的艺术世界。文学语言在艺术表现方面充分体现了自由性和灵活性。文学语言和一般语言的不同，决定了文学语言的审美性，形成了文学语言的特殊语言符号，使人们在文学的艺术殿堂里，享受艺术的无穷魅力。     

论高校网络德育实效评估的原则与路径

高校网络德育评估是高校网络德育的重要组成部分.高校网络德育评估必须遵循层次性评估与整体性评估相结合、短期效果评估与中长期效果评估相结合等构建原则,依据评估程序,运用主观性定性、面向对象等评估方法,以促进高校网络德育的实效性.     

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.     

美术教学CAI课件开发初探

把计算机多媒体技术及网络技术、虚拟技术综合运用到美术教学 ,探索与之相适应的教学形式、方法 ,是高师美术教学改革的重要课题。文章根据美术专业教学的特点以及CAI课件开发自身的规律 ,提出了美术教学CAI课件的设计原则以及开发过程中重要的几个方面。     

西部地区社会主义新农村建设的战略思考

社会主义新农村建设是当前和今后我国农业和农村经济发展的基本战略，是提高农业比较效益、增加农民收入、全面激活农村经济的现实选择。我国西部新农村建设，重点要发展农村生产力，拓宽农民增收渠道；逐步提高社会发育水平，完善农村社会保障体系；努力提高农民文化素质和组织化程度，增强抗御市场风险的能力；着力构建农业科技新体系，提高农业抵御自然灾害能力。     

哈耶克的自由法治观及其对构建社会主义和谐社会的启示

作为当代西方自由主义大师，哈耶克坚持自由即个人自由。在自由法治观上，他坚持“法治下的自由”，即“自由是以法治为基础的”。深入学习研究哈耶克的自由法治观对于我国构建社会主义和谐社会有着重要的借鉴价值和启示意义。     

论豪放与婉约风格的不同话语方式

豪放与婉约，是学风格审美表现形态中最基本的两种。章着重从语言美学的视角，对二由于语言表达方式、常规修辞与艺术修辞等话语方式的不同而呈现出的不同的审美特征进行比较性分析。     

浅谈转轨阶段高校的教学改革

处于转轨时期的高等教育 ,由于大量扩招 ,导致了学生层次高低不等的现实局面。面对如此现实 ,高教从业人员必须直面它 ,研究它 ,转变观念 ,积极改革 ,为实现高校的顺利转轨 ,培养适应人才市场所需的高素质人才 ,献计献策。     

木立芦荟中芦荟甙的TLC分析

采用超声提取方法，对木立芦荟中芦荟甙进行了提取，并用薄层色谱法(TLC)测定了木立芦荟中芦荟甙的含量．回收率为98．71％，变异系数为1．9％。     

Visible region extraction from a sequence of rational Bézier surfaces

A method for computing the visible regions of free-form surfaces is proposed in this paper. Our work is focused on accurately calculating the visible regions of the sequenced rational Bézier surfaces forming a solid model and having coincident edges but no inner-intersection among them. The proposed method calculates the silhouettes of the surfaces without tessellating them into triangle meshes commonly used in previous methods so that arbitrary precision can be obtained. The computed silhouettes of visible surfaces are projected onto a plane orthogonal to the parallel light. Then their spatial relationship is applied to calculate the boundaries of mutual-occlusion regions. As the connectivity of the surfaces on the solid model is taken into account, a surface clustering technique is also employed and the mutual-occlusion calculation is accelerated. Experimental results showed that our method is efficient and robust, and can also handle complex shapes with arbitrary precision. Project supported by the National Basic Research Program (973) of China (No. 2002CB312106) and the National Natural Science Foundation of China (Nos. 60533070, and 60403047). The third author was supported by the project sponsored by a Foundation for the Author of National Excellent Doctoral Dissertation of China (No. 200342) and a Program for New Century Excellent Talents in University (No. NCET-04-0088), China