高维增广相空间中广义力学系统的Lie对称定理及其逆定理

给出高维增广相空间中广义力学系统的Ｌｉｅ对称定理及其逆定理,首先,分析运动微分方程在无限小变换下的不变性建立完整非保守广义力学系统Ｌｉｅ对称的确定方程。得到Ｌｉｅ对称的结构方程和守恒方程,其次,讨论了Ｌｉｅ对称的逆问题,最后举例说明结果的应用。     

Anti-media populism: Expressions of media distrust by right-wing media in India

ABSTRACT

Criticism of mainstream media as being “biased” has emerged as a defining characteristic of right-wing discourse all over the world. Such expressions are coupled with the establishment of right-wing news outlets that seek to undermine professional journalism. But while scholars have examined the operation of such outlets in the context of Western democracies, anti-media populism in the Global South has received little scholarly attention. Through a thematic analysis of articles published on OpIndia.com- a right-wing news site in India, this paper seeks to address this gap in the literature and identify the discursive strategies employed by the right-wing media to discredit the mainstream press in India.     

齐切林的政治思想遗产与当代俄国的社会发展

鲍·尼·齐切林是帝俄晚期著名的保守自由主义大师。他的强权国家理念、两院议会制构想、公民社会思想、法制国家观念、渐进改革的国家发展方式等政治思想遗产在今日俄罗斯倍受政学两界的关注，以致普京政府有选择地吸收了他的思想作为治国之策，从而对当代俄国的社会发展产生了深远的影响。     

The politics are personal: The Australian vs the Australian curriculum in history

This article reviews the relationship between the conservative newspaper The Australian and the development of a national history curriculum in Australia. The lead author surveyed the major Australian press in the five-year period between 2007 and 2012 and found clear patterns of difference between The Australian and other press outlets in relation to education in general and history curriculum in particular. Using Jonathan Haidt's five-point model of moral values, the article analyses the behaviour of the press in Australia in relation to history education as a feature of moral preferences. Extending from this analysis, it then highlights a number of cases of press campaigns in The Australian targeted against individuals including one academic involved in the development of a national curriculum. The article demonstrates that a culture of aggressive conservatism exercised in this Murdoch press outlet reaches beyond the field of conventional political debate to constitute a serious and concerning influence in the dynamics of curriculum policy development.     

对机械能守恒条件的讨论

本文用牛顿力学方法分析了机械能守恒的条件,指出只有力满足旋度(?)×(?)=0的条件,而且在势能的表达式中不显含时间,机械能才守恒．     

语言映射的隐性文化与显性文化差异之我见

从语言形式和语言运用这两个视角,并以生动的实例来比较、剖析英汉两种语言所映射出来的文化差异:中国文化含蓄、保守、形象,重描写总体印象和视觉效果;西方文化相对来说多呈显性,其语言特点激进、重逻辑,尤其着重描写细节和听觉效果。     

对严复中西文化观的历史考察

严复的文化观被当作近代中国知识分子由先进到落后、由学习西方转向回归传统的典型,认为严复＂早期进步,晚年保守＂的观点似成定论。本文对严复独具特色而又一以贯之的中西文化观进行梳理和分析,并对其在中国文化近代化进程中的艰苦探索及文化选择进行历史的考察。     

惯性力为保守力的物理条件

文章分析了在直线加速度坐标系和转动加速度坐标系的各种情况中惯性力所表现的不同特性(保守力或非保守力),以期在大学物理力学教学中使学生对惯性力有一个全面的认识。     

略论刘锡鸿守旧思想的成因及特点

受以程朱理学为核心的传统文化的影响,是刘锡鸿和倭仁、李鸿藻等晚清守旧派守旧的历史根源和共性原因,个人性格气质等心理特征、所受教育以及攀援守旧派等因素的影响是刘锡鸿成为典型的守旧派的自身原因,以中国国情的特殊论为理论基础,以清议为手段,以恪守传统文化为宗旨,善变,虚实兼备,构成了刘锡鸿守旧思想的基本特点。     

两种方法治疗骨质疏松性脊柱压缩骨折的疗效比较

观察保守治疗和经皮穿刺椎体成形术(percutaneous vertebroplasty,PVP)治疗骨质疏松性脊柱压缩骨折(osteoporosis vertebral compression fracture,OVCF)患者的疗效。方法:收集2013年1月~2014年12月广西中医药大学第一附属医院,经胸腰椎MRI、腰椎CTQ诊断为骨质疏松脊柱压缩性骨折的患者60例,根据随机数表方法,将所有患者随机分为2组。A组:保守治疗组30例;B组:椎体成形术治疗组30例。记录各组患者的年龄、性别、住院时间、VAS评分,并对以上观察指标进行统计学分析。结果:所有患者均成功完成手术和分组,无神经损伤、大出血及死亡病例,随访半年后,年龄、性别、术前VAS评分在A组、B组组间对比均无统计学意义(P0.05);术后第1天、第3天、终末随访VAS评分,住院时间在A组与B组方面对比,提示差异有显著性(P0.05)。结论:保守治疗和椎体成形术在治疗骨质疏松性脊柱压缩性骨折方面,两者均能起到满意治疗效果,但椎体成形术在改善患者疼痛症状及缩短住院时间方面明显优于保守治疗,是值得推广的治疗方式。