马克思主义公共权力发展理论——公共权力萌芽、异化与回归

公共权力萌芽于维护共同利益的需要,随着生产力的发展和私有制的出现,氏族公共权力被国家公共权力所取代.前国家社会原初公共权力的工具性、民主自治性和道德性慢慢嬗变为统治性、阶级性和强制性的国家公共权力.公共权力出现了异化,公共权力从社会中产生,但是却反过来却凌驾于社会之上.马克思主义公共权力发展理论认为防止公共权力的异化要建立新型政权体制,这个新型政权体制要具有人民执掌公共权力、普选制、罢免制、低薪制以及有效监督机制等特征.但是,纯粹公共权力的回归必须要使国家真正成为整个社会的代表以及消灭私有制.马克思主义公共权力发展理论无疑对我们今天公共权力的行使具有重要的现实指导意义.     

波谱化学课程建设的实践与体会

本文简述了作者在波谱化学课程建设中的实践与体会,包括在教学内容、教学方法、网络课堂建设和考试等方面的教学改革.     

Anonymous multipath routing protocol based on secret sharing in mobile ad hoc networks

Because the intrinsic characteristics of mobile ad hoc networks(MANETs) cause several vulnerabilities,anonymous routing protocols attract much more attention in secure mobile ad hoc networks for the purposes of security and privacy concerns.Until recently,lots of anonymous routing protocols have been proposed.However,most of them are single path or use one path at a time,and the multipath schemes can not thwart both the passive attacks and active attacks simultaneously.Thus an anonymous multipath routing protocol based on secret sharing is proposed.The protocol provides identity anonymity,location anonymity,data and traffic anonymity by employing cryptograph technology and secret sharing in MANET communication process.Meanwhile,a hash function is introduced to detect active attacks in the data transmission process.The protocol can effectively thwart various passive attacks and reduce the successful probability of active attacks(such as interception and physical destroy attacks).Simulation results show that the proposed scheme provides a reasonably good level of network security and performance.     

中小学电化教育改革的探讨

中小学电化教育是我国电教事业的基础工程,目前还存在思想观念落后、人才匮乏、硬件配置欠佳、管理体制不顺等问题。通过更新观念、加强人才建设、硬件重组等可以实现科学管理,提高教学质量。     

达州市城市化道路研究

大都市区化逐渐成为全球城市化发展的主要趋势.我国西南部的成渝经济区建设日渐成型,身处该区域的达州市,在未来的城市化道路中要抓住这个机遇,克服所面临的“行政壁垒”等不利因素,走出一条符合自身的发展道路,争取成为经济区内的次级中心城市.     

Functional analysis of the ABA-responsive protein family in ABA and stress signal transduction in Arabidopsis

The phytohormone abscisic acid (ABA) plays an important role in plant growth and development, for example in seed dormancy and germination, as well as in plant responses to environmental stresses, such as drought and high salinity. Previous studies have shown that ABA regulates the expression of genes with an ABA-responsive element (ABRE) and their corresponding physiological responses. Bioinformatics analysis identified a GRAM domain-containing gene family that has a multiple ABRE cis-element, which was termed the ABA-responsive protein (ABR) family. To analyze the function of the ABR family, we identified homozygous T-DNA insertion mutants and constructed abr1, 2, 3 double mutants and triple mutant. The abr1, abr2 and abr3 single mutants showed a normal phenotype; however, the germination of seeds of the double mutants and triple mutant were insensitive to ABA, NaCl, mannitol and glucose. ABR1-GFP was distributed as a punctate structure in the cytosol and may be localized in the endomembrane system. The ABR2-GFP and ABR3-GFP proteins localized in the cytoplasm. In addition, ABR1, ABR2 and ABR3 were expressed in various tissues, and could be induced by several abiotic stresses, especially by ABA. The expressions of these genes were significantly suppressed in aba2, abi1 and abi2 null mutants. These results suggested that the ABR family may act downstream of ABI1 and ABI2 in the ABA signal transduction process in plants.     

兰州市城区5-6岁幼儿家庭教育现状调查研究

采用问卷调查法和个别访谈法对兰州市城区各类幼儿园大班幼儿家庭教育状况进行了调查研究,从家庭基本情况、家长的教育观念、教养态度、教育行为以及幼儿身心发展水平五方面进行总结与分析,并提出教育对策与建议。     

图像DCT系数的α稳态簇分布模型

提出了一种新颖的统计分布模型———α稳态簇模型。根据图像DCT系数的统计特征,结合理论分析和实验验证,验证了图像DCT系数服从于α稳态簇分布模型。α稳态簇模型具有足够的柔韧性,随着特征指数α改变,其分布形状也会改变。图像纹理细节细密程度与特征指数α呈反比例关系,对于纹理细节细密的图像,其特征指数α偏小;对于具有平滑区域的图像,其特征指数α偏大。     

普通师范院校培养技术师范类人才的研究与探讨

我国目前部分普通师范院校承担着培养技术师范类人才的任务,普通师范院校在培养技术师范人才方面具有较多的优势,但培养模式与普通师范人才培养模式有所不同,在人才培养过程中须在课程体系、课程设置和实践教学等方面加以区别.     

广义Kronecker积及其应用 ——处理复杂系统的新思维系列之十一

本系列论文基于《多边矩阵理论》，由东方整体性思维所启迪，试图提供并完善一套从整体到局部处理复杂系统多指标问题、非均匀性问题、非线性问题的强有力的数学工具，并对其进行严格的理论推导和证明。作为系列论文的第十一篇，首先基于广义Kronecker积的定义，讨论其是否满足三种运算律，介绍其与普通Kronecker积、Kronecker和的关系，及其应用方法，设计Hadamard矩阵、拉丁矩阵和差集矩阵；其次给出了 Kronecker积的另一个推广定义，强Kronecker积；最后用SAS语言实现了两种Kronecker积运算方法。