中华鼢鼠的发生及防治技术

中华鼢鼠是我国北方地区丘陵山区针叶林幼树最重要的害鼠。文章就该鼠的分布危害、形态特征、发生与环境的关系等做了介绍，并提出了防治方法。     

发展中的广西民族学院数学与计算机科学系

介绍广西民族学院数学与计算机科学系建系40多年来,特别是改革开放以来的发展情况.     

师范院校亟需加强信息技术课程

信息技术教育的重要性正不断地提升,信息素养的培养日益迫切.师范院校亟需加强信息技术课程,以打破制约信息技术教育发展的"瓶颈",应对信息化社会的挑战.着重分析了师范院校开设信息技术课程的必要性.     

浅谈如何利用指标体系对科技活动进行评价分析

简述了科技活动的概念，提出了统计指标体系的设计原则，详细介绍了如何利用指标体系对科技活动进行评价分析，包括评价分析的主要指标及测量方法。     

基于相似性和耦合性分析的过程重组

首先用数学模型描述了过程与活动语义，并提出名称（实体／操作）与名称集合相似系数的计算方法，为过程内部活动之间相似性、过程之间相似性和耦合性分析提供了量化工具。接着以这两种分析结果为依据，探讨了重组的方法。最后，通过一个应用实例进行了说明。     

Comparison of the time courses of luteinizing hormone (LH) secretion rates during continuous stimulation by LH-releasing hormone (LH-RH) in vivo and in vitro

Summary The patterns of LH secretion during constant stimulation of the pituitary glands of estradiol-treated ovariectomized rats with a maximally stimulating amount of LH-RH in vivo and in vitro correspond with each other qualitatively and quantitatively. In vitro the changes with time of the LH secretion rate are somewhat retarded, especially the occurrence of desensitization.     

旋光物质中n_R≠n_L的简易证明

应用经典电磁理论和分子理论证明旋光物质中n_R≠n_L。     

Genetic and environmental influences on reactive and spontaneous locomotor activities in rats

Paired groups of rats (derived from divergent, selective breeding or living in divergent environmental conditions) were compared with regard to locomotor activities. Intrapair differences were found to vary non-systematically, depending upon whether the rats were initially exposed to a test-environment with or without a slight environmental modification (reactive activities), or were allowed to habituate extensively to the environment (spontaneous activity). Since the behavioral patterns were found to represent distinct entities, this pointed to the necessity of differentiating clearly between spontaneous and reactive activities and indicated, once again, that both genetic and environmental influences are important in these behaviors and must be taken into account. Accepting and controlling for these variables makes it possible to use the factor of individual differences in laboratory animal behavior to advantage.     

Genetic and environmental influences on behavioral and neurochemical aspects of emotionality in rats

Summary Three pairings of rats (two derived from divergent, selective breeding and one from divergent environmental conditions) were compared with regard to behavioral and hormonal parameters. Striking differences were observed: results obtained in our own laboratory as well as those found in a review of the literature pointed to higher emotionality (e.g., increased defecation and corticosterone secretion, etc.) in Roman low-avoidance, Wistar-Kyoto and group-housed rats, as compared to their respective counterparts, Roman high-avoidance, spontaneously hypertensive, and individually housed Wistar rats. Concomitant receptor binding studies reviewed here (³H-diazepam- and³H-imipramine-binding sites) have revelaed, however, less consistent intrapair differences.     

米曲霉自溶作用的研究Ⅱ自溶过程中细胞物质及酶活的变化

在米曲霉最佳的自溶条件下，对其自溶过程中重要的细胞物质及酶进行了测定，结果自溶液中测出１７种氨基酸酸，总氨基酸释放率为６８．７９％，核酸释放率为５０．００％，糖的释放率为２４．５８％，酸性蛋白酶活性高，而５’－磷酸二酯酶活性较低。