提高初中计算机教学的有效方法与途径

对新课程改革后，贫困山区初中计算机教学方法的探索，有利于有效提高教学质量，提高学生学习和使用计算机的兴趣。     

注重实践能力培养 促进就业能力提高

实践能力作为大学生就业环节中的点睛之笔,其强弱直接决定着大学生就业能力的高低。通过对曲靖师范学院经管类专业近年来在实践教学上的探索进行总结,旨在对地方本科院校经管类专业如何以实践能力的培养促进学生就业能力的提高这一问题提供有益的参考和借鉴。     

Control of cell growth: Rag GTPases in activation of TORC1

The target of rapamycin (TOR) is a central regulator controlling cell growth. TOR is highly conserved from yeast to mammals, and is deregulated in human cancers and diabetes. TOR complex 1 (TORC1) integrates signals from growth factors, cellular energy status, stress, and amino acids to control cell growth, mitochondrial metabolism, and lipid biosynthesis. The mechanisms of growth factors and cellular energy status in regulating TORC1 have been well established, whereas the mechanism by which amino acid induces TORC1 remains largely unknown. Recent studies revealed that Rag GTPases play a central role in the regulation of TORC1 activation in response to amino acids. In this review, we will discuss the recent progress in our understanding of Rag GTPase-regulated TORC1 activation in response to amino acids. Particular focus will be given to the function of Rag GTPases in TORC1 activation and how Rag GTPases are regulated by amino acids.     

水泥粉煤灰碎石桩加固软土路基

文章简述了福清市龙江南路B段道路工程段采用水泥粉煤灰碎石桩处理软土路基，介绍CFG桩的施工技术。     

Dynamic domain decomposition method and its application on nonlinear problem

In this paper,domain decomposition method(DDM) for numerical solutions of mathematical physics equations is improved into dynamic domain decomposition method(DDDM) . The main feature of the DDDM is that the number,shape and volume of the sub-domains are all flexibly changeable during the iterations,so it suits well to be implemented on a reconfigurable parallel computing system. Convergence analysis of the DDDM is given,while an application approach to a weak nonlinear elliptic boundary value problem and a ...     

教学实践过程中的信息技术

信息技术课的主旨在于培养学生对信息技术的兴趣和意识,让学生了解和掌握信息技术的基本知识和技能,为适应信息社会的学习、工作和生活奠定必要的基础.     

露天矿采剥生产进度计划优化

用线性规划法,在PV图控制下优化生产剥采比,用人机交互式模拟技术编制采剥生产进度计划.开发出一套易为矿山人员接受的可在微机上运行的软件,具体编制了某矿进度计划.     

催化光度法测定玉米中的痕量金

研究用碘酸钾-变胺蓝(VB)-DMF体系测定玉米中痕量金的催化光度法.方法的线性范围0～0.15μg /ml,测量的相对标准偏差s≤I0％,检出限(K=3)为0.019μg/ml.对合成样和玉米样分析的同收率为94％～106％。     

气相色谱法测定甲基纤维素中甲氧基含量

本文阐述了甲基纤维素中甲氧基含量的气相色谱法测定的简单原理、方法步骤和实验条件,进行了实际样品的测定.得到了满意的结果.     

对向靶溅射法中直流负偏压对FeN化合物薄膜的结构和磁性的影响

对向靶反应溅射法制备的FeN化合物薄膜的结构和磁性对基板偏压的变化很敏感,不同的偏压数值作用的效果不同。我们用基板偏压促进成膜原子间的相互扩散,以及对负离子排斥降低膜中N的浓度和粒子轰击对膜再溅射的观点解释了FeN膜的结构和磁性的变化。