采访数字资源的版权风险和应对策略探讨

数字资源采访实践工作中,图书馆面临着极大的版权风险。基于近年来图书馆数字资源相关版权纠纷统计分析,总结采购数字资源中的版权风险主要包括数字资源中含侵权作品、合同风险、服务风险等。图书馆应该对我国著作权相关法律中图书馆的版权例外保护条款和数字资源采访中的版权风险有充分而深入的认识,积极参与相关法律法规的完善,加强对数字资源供应商、资源合法性和合同的审查,强化数字资源服务中的技术保护措施、注意和告知义务,并制定图书馆版权管理办法。     

对"陌生化"的概念理解及扩容尝试

文章在对俄国形式主义的"陌生化"概念进行阐释的基础上尝试对其进行扩容,使其延伸至语言之外的领域,得以解释文学史嬗变更迭的原因.并且,本文对形式主义的思想局限略作评述,以论证对该概念的扩容根据及其合理性.     

Genetic analysis for brix weight per stool and its component traits in sugarcane （Saccharum officinarum）

Brix weight per stool (BW) of sugarcane is a complex trait, which is the final product of a combination of many components. Diallel cross experiments were conducted during a period of two years for BW and its five component traits, including stalk diameter (SD), stalk length (SL), stalk number (SN), stalk weight (SW), and brix scale (BS) of sugarcane. Phenotypic data of all the six traits were analyzed by mixed linear model and their phenotype variances were portioned into additive (A),dominance (D), additive×environment interaction (AE) and dominance×environment interaction (DE) effects, and the correlations of A, D, AE and DE effects between BW and its components were estimated. Conditional analysis was employed to investigate the contribution of the components traits to the variances of A, D, AE and DE effects of BW. It was observed that the heritabilities of BW were significantly attributed to A, D and DE by 23.9%, 30.9% and 28.5%, respectively. The variance of A effect for BW was significantly affected by SL, SN and BS by 25.3%, 93.7% and 17.4%, respectively. The variances of D and DE effects for BW were also significantly influenced by all the five components by 5.1%～85.5%. These determinants might be helpful in sugarcane breeding and provide valuable information for multiple-trait improvement of BW.     

Genetic analysis of fruit shape traits at different maturation stages in sponge gourd

The fruit shape is important quantitative trait closely related to the fruit quality. However, the genetic model of fruit shapes has not been proposed. Therefore, in the present study, analysis of genetic effects for fruit shape traits （fruit length and fruit perimeter） in sponge gourd was conducted by employing a developmental genetic model including fruit direct effects and maternal effects. Analysis approaches of unconditional and conditional variances were applied to evaluate the genetic behavior of fruit shape traits at economical and physiological maturation times. The results of variance analysis indicated that fruit length and fruit perimeter were simultaneously affected by fruit direct genetic effects and maternal effects. Fruit direct genetic effects were relatively more important for fruit shape traits at whole developmental period. The gene expression was most active at the economical maturation stage （1-12 d after flowering） for two shape traits, and the activation of gene was mostly due to direct dominance effects at physiological maturation stage （13-60 datter flowering）. The coefficients due to different genetic effects, as well as the phenotypic correlation coefficients, varied significantly between fruit shape traits themselves at various maturation stages. The results showed that it was relatively easy to improve fruit shape traits for industrial purpose by carefully selecting the parents at economical maturation stage instead of that at physiological maturation stage.     

A rapid and accurate 3-（4,5-dimethyl thiazol-2-yl）-2,5-diphenyl tetrazolium bromide colorimetric assay for quantification of bacteriocins with nisin as an example

The objective of this study is to propose a more accurate and faster MTT 3-(4,5-dimethyl thiazol-2-yl)-2,5-diphenyl tetrazolium bromide colorimetric assay (MCA) for quantitative measurement of polypeptide bacteriocins in solutions with nisin as an example. After an initial incubation of nisin and indicator bacterium Micrococcus luteus NCIB 8166 in tubes, MTT was added for another incubation period. After that, nisin was quantified by estimating the number of viable bacteria based on measuring the amount of purple formazan produced by cleavage of yellow tetrazolium salt MTT. Then MCA was compared to a standard agar diffusion assay (ADA). The results suggested a high correlation coefficient (r2=0.975±0.004) between optical density (OD) and the inhibitory effect of nisin on a bacterial strain Micrococcus luteus NCIB 8166 at a range of 0.125～32 IU/ml. The MCA described in this study was very quick. Quantification of nisin took only 7～8 h and the detection limit was at the level of 0.125 IU/ml when compared to 12 IU/ml and 24～28 h for ADA. The MCA provides an accurate and rapid method for quantifi-cation of nisin in solutions and is expected to be used for quantification of other antimicrobial substances.     

机电控制器类课程虚拟实验系统的研究与开发

针对机电控制器类课程传统实验平台的缺点,提出了一种有效的解决方案:开发建立相应课程的虚拟实验系统.分别介绍了采用Proteus软件开发单片机课程虚拟实验系统和采用组态王软件开发PLC虚拟实验系统的研发思路、内容及实现方法,阐述了运用机电控制器类课程虚拟实验系统的教学效果及推广意义.     

纳米碳掺杂TiO2的制备、表征及可见光光催化性能实验

结合科研成果,开设了一种简便的纳米碳掺杂TiO2的制备、表征和可见光光催化性能的实验。实验内容涵盖材料化学、无机合成、仪器分析、催化等专业知识,涉及材料和环境等领域。可作为大学化学综合型实验,也可以此为基础升格为大学化学综合创新型实验。     

技术基础课实践教学模式改革研究与实践

以“实践教学是高职教育主体教学”的理念,架构技术基础课实践教学的“4-3-1模式”,使学生的实践技能得了到更好的训练和提升.在改革实践中探索了真正实现高职培养目标的技术基础课实践教学新模式.     

实验教学质量监控体系的研究与探索

实验教学作为本科教学的重要组成部分,与理论教学相比,实验教学的质量监控和管理有很多不同之处.从实验教学质量监控体系建立的目的和原则进行讨论,根据农科类高校实践教学的实际情况,制定了实验教学质量监控体系,并进一步提出了具体措施.