当代大学生道德状况和价值选择的不良变化动因及对策

大学生是民族的希望、国家的未来,广大思想政治教育工作者必须密切关注当代大学生的思想和价值动向,透视其背后的深刻动因,努力解决大学生思想政治教育工作中凸现的问题,积极探索大学生思想政治教育工作的新途径、新方法。

中国三代艺术的意义

在中国夏商周“礼乐文化”语境中生长、发展起来的三代艺术，以青铜艺术与乐舞艺术为代表，其最本质的特征便是“礼乐艺术”。从人类艺术所经历过的物质性实用目的艺术、精神性实用目的艺术、审美性非实用目的艺术这三大基本历史类型更迭演化的线索来看，在中华艺术发展的历史进程中，三代礼乐艺术正是一种典型形态的“精神性实用目的艺术”；三代时期正是这种艺术基本类型得以确立的时期，是中华远古时期物质性实用目的艺术向后来的审美性非实用目的艺术发展演变的不可或缺的、具有重要意义的中介环节。而到了三代的晚期即春秋战国时期，随着旧的礼乐制度的崩坏，艺术中开始出现了新的历史类型的萌芽，成为数百年后魏晋时期中华艺术伟大自觉时代的先声。

Scheme of Nitrogen Reasonable Fertilization in Mulberry Gardens of Sichuan Hilly Areas

Abstract In the research, five test groups were set, including urea at O, 120, 240, 360 and 480 kg/hm^2, respectively, and analysis was conducted on mulberry leaf yield and some characters of the quality in order to establish utility functions of ap-plied N in mulberry gardens with different production purposes and to provide schemes of rational N fertilization. The results indicated that yield of mulberry leaf and content and yield of active nutritional substances in the leaves would be reduced either by insufficient or excessive N quantity. In addition, 240 kg/hm^2 of applied N significantly improved active nutritional substances in leaf and 360 kg/hm^2 of applied N significantly improved yields of mulberry leaf and active nutritional sub-stances. Therefore, utility functions of applied N quantity with leaf yield, DNJ content and yield were established accordingly. The optimal N quantity in mulberry gardens for sericulture is recommended 360 kg/hm^2 and the optimal N quantities in mulberry gardens for increase of yield and content of DNJ are 299.56 and 294.72 kg/hm^2, respectively.

宗教超越与艺术超越

宗教与艺术二者同为人类古老、深沉、高级的精神活动的典范表现，有着解不开理还 乱的综结。作者就二者对世俗世界的超越性这一特征进行了比较。就共性而言，首先，二者 均强调对世俗世界状况境遇的突破与超越，并经由此突破与超越，实现人生境界的根本转变 ；其次，二者对物质性实用功利均采取规避的态度。就差异性而言，宗教往往在人之上悬设 出超越的救度者，而艺术将救度（者）置于人之内；宗教的超越借助于信念，而艺术的超越 借助于想象；宗教超越实用功利是因为有一个精神性功利目的，属自觉行为，而艺术超越功 利是自发性的，在精神性功利追求方面，艺术比宗教更超然。

Recent advances in glycerol valorization via electrooxidation:Catalyst,mechanism and device

Glycerol is one of the most important biomass-based platform molecules,massively produced as a by-product in the biodiesel industry.Its high purification cost from the crude glycerol raw material limits its application and demands new strategies for valorization.Compared to the conventional thermocatalytic strategies,the electrocatalytic strategies can not only enable the selective conversion at mild conditions but also pair up the cathodic reactions for the co-production with higher efficiencies.In this review,we summarize the recent advances of catalyst designs and mechanistic understandings for the electrocatalytic glycerol oxidation(GOR),and aim to provide an overview of the GOR process and the intrinsic structural-activity correlation for inspiring future work in this field.The review is dissected into three sections.We will first introduce the recent efforts of designing more efficient and selective catalysts for GOR,especially toward the production of value-added products.Then,we will summarize the current understandings about the reaction network based on the ex-situ and in-situ spectroscopic studies as well as the theoretical works.Lastly,we will select some representative examples of creating real electrochemical devices for the valorization of glycerol.By summarizing these previous efforts,we will provide our vision of future directions in the field of GOR toward real applications.

Allelopathic interactions between Prorocentrum micans and Skeletonema costatum or Karenia mikimotoi in laboratory cultures

Algal allelopathy is an ecological/physiological phenomenon that has focused attention on the interactions among algae and the production of algal toxins. We investigated the allelopathic interactions between the dinoflagellate genus Prorocentrum micans and diatom genus Skeletonema costatum and between P. micans and dinoflagellate genus Karenia mikimotoi using bi-algal cultures. Because the effects were species-specific and size-dependent, we evaluated the effect of different initial densities. At low densities of P. mieans and high densities of S. costatum inoculated into the same medium, the growth of R rnieans was weakly restrained, whereas the growth of S. costatum was significantly suppressed. S. costatum and K. mikimotoi were strongly inhibited by P. micans, in both the bi-algal cultures and enriched filtrates. Direct cell-to-cell contact was not necessary to gain a competitive advantage, thus, our results suggest that P. micans inhibited the growth of S. costatum and K. mikimotoi by the release of allelochemical（s）. Last, a mathematical model was used to simulate growth and interactions between P. micans and S. eostatum and between P. micans and K. mikimotoi in bi-algal cultures.

Solution of Modern Thermo Physical Problems of Applied External and Internal Aerodynamics with Dark Matter-Energy Simulation

The paper is devoted to new, experimentally registered thermo physical problems of high temperature applied external and internal aerodynamics which is defined first of all by intensive interaction of the gaseous media and thermal radiation. The first report section analyses basic complexities of designing high temperature air breathing engines related to origin of so-called ＂unexpected＂ heat of working process. The next parts of the report consider physical, chemical and plasma features of aerodynamics of reentry space blunt bodies and meteors with specified account of thermal radiation influence. Our solutions are based on the classical Dark Matter-Energy simulation. We present special experimental data for Dark Matter pressure registration on the earth conditions.