教育技术环境下研究性学习的创新发展

随着教学改革的不断深化,研究性学习已经成为我国当代教育的一项重要课题,作者简要介绍了研究性学习的特点和意义,分析了教育技术环境下虚实融合的研究性学习过程,指出教育技术在开展研究性学习中具有的创新发展作用。     

影响大学生身心健康的体育学分析

采用文献、调查问卷、数理统计等方法对影响我国当代大学生身心健康因素进行调查，以了解影响大学生身心健康的因素及对体育锻炼的认知程度，目的在于进一步促进高校体育教学改革，更好地为大学生形成科学的生活方式、提高他们的身心健康服务。     

高校思想政治教育工作实效性提升探析

通过分析目前高校思想政治教育存在的主要问题,认为造成当前高校思想政治教育效果弱化、实效性不强的主要原因是思想政治教育理论脱离实际,内容不贴近生活,方法不贴近学生。因此,必须深化思想政治教育的改革,在教育理念、教育内容、教育方法等方面进行革新,才能增强思想政治教育的针对性和实效性。     

浅谈大学生课外科技活动在专业能力培养中的作用

本文就大学课外科技活动在培养学生全面素质中的作用进行了阐述，并就如何激发大学生的创新热情、提高创新能力提出了建议。     

论政治军官的情商修养

政治军官是思想政治工作的组织者，其情商在相当程度上影响思想政治工作的成效。将情商纳入政治军官修养的视野，既有利于提升思想政治工作的有效性，又有利于个人的全面发展。政治军官情商修养的任务主要是认识和调整好自己的情绪，善于理解和影响他人的情感，营造良好的组织氖围。     

Distributed modeling of the beginning and ending dates and durations of limited temperatures over the rugged terrain of Chongqing

A physically based empirical model was established for the beginning and ending dates (BED) of limited temperatures.Data used were daily mean temperatures from 34 conventional stations in the Chongqing region,measured from 1961 to 2000.Using this model in combination with the distributed modeling results of monthly mean temperatures,we developed a method for creating a distributed simulation of the BED and durations of limited temperatures in the rugged terrain of Chongqing.Spatial distribution maps were generated at a resolution of 100×100 m for the BED and durations of the limited temperatures of 0,10,15 and 20.Simulations suggest that the distributed model is able to successfully reveal the macroscopic trends and local distributions.For the modeled BED,the mean absolute bias error is 0.6-2.4 d.Cross-validation and case-year tests show mean absolute bias errors of 1.3-2.8 d and 0.7-2.5 d,respectively.Comparison shows that the simulation results are consistent with the field investigations.This implies that the simulations are as good as observations,thus providing a viable technique for simulating mountainous heat resources using conventional meteorological data.     

Macroscopic Quantum Phenomena and Topological Phase Interference Effects in Single-Domain Magnets

The tunneling of macroscopic object is one of the most fascinating phenomena in condensed matter physics. During the last decade, the problem of quantum tunneling of magnetization in nanometer-scale magnets has attracted a great deal of theoretical and experimental interest. A review of recent theoretical research of the macroscopic quantum phenomena in nanometer-scale single-domain magnets is presented in this paper. It includes macroscopic quantum tunneling (MQT) and coherence (MQC) in single-domain magnetic particles, the topological phase interference or spin-parity effects, and tunneling of magnetization in an arbitrarily directed magnetic field. The general formulas are shown to evaluate the tunneling rate and the tunneling level splitting for single-domain AFM particles. A nontrivial generalization of Kramers degeneracy for double-well system is provided to coherently spin tunneling for spin systems with m-fold rotational symmetry. The effects induced by the external magnetic field have been studied, where the field is along the easy, medium, hard axis, or arbitrary direction.     

上海地区孕产妇文胸的市场分析及优化设计

根据上海地区210名孕产妇的问卷调查和市场调研结果.分析了上海孕产妇文胸市场状况.综合孕产妇生理、心理变化特征和特殊需求,从罩杯、肩带、钢圈、后比等部位进行孕产妇文胸结构优化,以及面料、色彩的优化设计.     

出入相补原理在清初正五边、十边形研究中的应用

明末《几何原本》、《崇祯历书》等汉译科技典籍将西方正五边、十边形相关知识传入中国,但只有算、法,并未阐述数学原理.清初中算家在接受西方几何学的同时,兼用中国传统几何学中的出入相补原理对其进行研究,发挥中算的构造性特点,将正五边、十边形相关内容中蕴含的数量关系与实在的空间形式相结合,不但将原理阐释清楚,而且获得一些创新性成果.     

论俄罗斯1917年革命

俄罗斯的1917年是革命的一年,在世界历史上占有重要地位。布尔什维克革命实现了与1917年革命的融合,从而使这场精心准备的革命获得了与其成本和代价极不相称的历史性的成功。十月革命开启了一个神话,但神话的迅速破灭也在俄罗斯人民心中留下阴影。