节约型社会建设的当代价值述论

节约型社会是建设和实现和谐社会的必然要求，是缓解资源瓶颈对经济发展制约的正确选择，是促进人与自然和谐发展的客观需要。但目前人们的研究主要集中在如何合理消费、怎样节约自然资源、建设循环经济等方面，也就是说主要从消费伦理向度上探讨节约型社会的价值。其实节约型社会具有批判现代性社会的功能，因为奢侈的生活态度和生活方式应该遭到理性的拒斥和社会正义的禁止。节约型社会作为新型社会制度具有价值合理性和社会正当性。蕴涵着人的解放、自然的解放和社会进步的价值。     

Gene product expression of cyclin D<Subscript>2</Subscript> and p16 during the transition from cardiac myocyte hyperplasia to hypertrophy

The current study was to investigate mRNA expression of cyclin D₂ and p16 during the transition from cardiac myocyte hyperplasia to hypertrophy. Cultured cardiac myocytes (CM) and fibroblasts (FC) obtained from 1-day-old Sparague-Dawley rats were used in this study. We have determined (1) hyperplasia by cell growth curve and fluorescence activated cell sorting (FACS); and (2) ultrastructure by electron microscope observation; and (3) expresions of cyclin D₂ mRNA and p16 mRNA by using in situ hybridization and image analysis. The results were shown (1) Results of cell growth curve and FACS analysis showed CM could proliferate in the first 3 cultured days (4 days in postnatal development). But the ability decreased quickly, concomitant with the differentiation. (2) The ultrastructure of CM showed the large amount of myofilaments and mitochondrion and FC showed moderate amount of rough endoplasmic reticulum. (3) The expression of cyclin D₂ mRNA in 3−, 4−, 5−day CM group was 0.89 times (p<0.05), 0.80 times (p<0.05) and 0.56 times (p<0.01) of that in 1-day group respectively. P16 mRNA in 2−, 3−, 4−, 5−day CM group were 1.63 times (p<0.01), 1.72 times (p<0.01), 1.99 times (p<0.01) and 2.84 times (p<0.01) of that in 1−day group respectively. It can be concluded that cultured neonatal rat cardiac myocytes could proliferate during the first 3 cultured days, but the ability of proliferation decreased, from the fourth day, concomitant with differentiation. Cyclin D₂ and p16 have the key roles during the transition from myocyte hyperplasia to hypertrophy. Biography: Zhang Yu-xia (1974-), female, Master, research direction: cardiovascular pathology.     

我院实施体育学分制的构想

职业高师的体育教学改革，必须面向新世纪，培养适应社会需要的新一代教师。本文针对学院体育改革存在的问题，结合学院弹性学分制的实施，指出了学院体育改革的核心是改革教学模式，并对公共体育教学的改革提出建设性意见。     

FINITE TIME TRACKING CONTROL FOR RIGID ROBOTIC MANIPULATORS WITH FRICTION AND EXTERNAL DISTURBANCES

1.Introduction Variable structure control is well known for its robustness to system uncertainties and external disturbances and has been successfully applied to the rigid robotic manipulator systems(Utkin(1992),Zinober(1990)).Generally,a linear sliding mode is firstly designed to describe the desired system error dynamics,a robust controller drives the switching plane variables to reach the sliding mode,and the error dynamics will asymptotically converge to zero on the linear sliding mode.Si…     

仿真系统与专家系统结合方式分类方法的研究

本文首先阐述仿真系统与专家系统之间的相似与不同之处，然后从系统分类的观点将仿真系统与专家系统的结合方式进行分类。通过这种分类方法，一方面可以将目前专家系统在仿真系统中的应用．或仿真系统在专家系统中的应用归纳进某一种类别或几种类别的组合之中，另一方面又可以发现两者结合方式之中存在的问题与不足。最后，通过一个实例说明这种分类方法是怎样帮助人们发现问题并且解决问题。     

Laplace Transformation and Ergodic Potential Kernel for q-Process in Random Environment

This paper introduces some concepts such as q-process in random environment, Laplace transformation, ergodic potential kernel, error function and some basic lemmas.We study the continuity and Laplace transformation of random transition function. Finally, we give the sufficient condition for the existence of ergodic potential kernel for homogeneous q-processes in random environments.     

浅谈译述的性质、原则与方法

本文对译述的必要性、概念、特点、原则与方法进行了粗浅的探讨。     

非相干解调器门限的计算及降低之途径

本文认为信号的峰值和噪声的“峰值”相等是非相干解调器出现门限的临界点。据此算得FM波非相干解调器的门限值为dB,AM波的为4.3dB。最后还指明了降低非相干解调器门限值的途径。     

BP算法求解多元线性回归模型初探

提出求解多元线性回归模型系数的BP算法，给出该算法的数学描述、推导过程和计算机编程步骤，并结合实例说明。