The reproductive health indices and sex hormone levels in middle-aged and elderly Chinese men

Objective: The aim of this study was to analyze the age-related recession trajectory of reproductive health indices in middle-aged and elderly Chinese men.

Methods: A population-based cross-sectional study was conducted in Jiashan County, Zhejiang in 2012. Healthy men between 40 and 80 years of age were considered eligible for the study. Physical examination and the sex hormones were measured. The subjects were assessed based on the 5-item version of the International Index of Erectile Function (IIEF-5) for Erectile Dysfunction (ED), and Aging Males’ Symptoms (AMS) scale for Symptomatic Late-Onset Hypogonadism (SLOH).

Results: TG showed a decrease at age 60 years. Testis volume and TT did not show significant difference among the four age groups; cFT began to decrease at age 50 years and Bio-T decreased faster at age 50 years. SHBG and LH increased faster at age 50 and 70 years, respectively. IIEF5 score decrease faster at age 60 years. AMS scores increased faster at age 70 years. With the increase in age, the symptoms of ED and SLOH became severer.

Conclusion: Different indices on reproductive health of men showed turning points at different ages. At first, androgenic sex hormones decreased faster, and then erectile dysfunction got severer, and the last overall male syndromes declined.     

China and global internet governance: toward an alternative analytical framework

Drawing on historical methods, this study assesses the conventional “cyber-sovereignty” framework, which has been used to capture and interpret China’s stance toward global Internet governance. This framework focuses on political control and tends to reduce China’s policies to the attempts by an authoritarian state to elevate governments and intergovernmental organizations to be the only legitimate governors of global cyberspace. As it traces the evolution of China’s relationship with the global Internet in the past three decades, the study demonstrates that China’s stance is more complex than the prevalent framework allows and that it is both built upon and different from the US-centric, market-oriented Internet governance scheme. This study recognizes the inadequacy of the conventional framework and invokes a theory of critical political economy of communication, thereby offering an alternative model to explicate the complex power dynamics behind China’s changing strategies. The alternative model advanced in this study is based on the understanding of China’s evolving approach as the product of multifaceted interactions among a group of power-holders that include both state agencies and business units on the transnational level.     

文化冲突视野下青年世界观问题研究

当前的中国正处于社会转型的关键时期。在这个特殊的历史时期,社会中充斥着各种文化冲突。这些不同文化之间的相互冲突,对于当前的青年群体正确世界观的确立产生了诸如对科学世界观缺乏认同、不能正确认识个人和社会的关系、有神论思想及思想方法片面等很多消极影响。为此,对青年世界观的教育,应着重采取实践教育、区别对待、具体指导、情感培养、实现知识内化等措施。     

论《学记》教学思想的当代启示

《学记》里蕴含着丰富的教学思想,对我们今天的教育教学仍有很大的参考价值。     

大学生性别角色群体对同性恋态度的研究

同性恋是当今社会无法回避且必须正视的问题之一,高校校园中的同性恋状况更值得关注。对1288名大学生的调查发现,大学生中的未分化角色和双性化角色比例较高,大学生群体的性别角色与其对同性恋的态度具有一定关联性。同性恋在高校校园具有一定的比例,但大学生对同性恋的态度总体比较客观和宽容,同时也发现现有性别教育不能满足现实需要,应该通过防艾知识教育、心理健康教育、性别角色教育加强大学生的性别教育。     

上海机器人产业发展战略与对策

发展机器人产业对上海意义重大,上海机器人产业和技术发展的战略定位须着眼于上海的转型发展和自身的基础。为此,应加强战略引导和资源整合,制定上海机器人产业与技术整体规划和路线图;加强需求的政策引导,发挥本土市场的拉动作用,促进机器人在各领域的应用;吸引大型企业参加应用开发,培育龙头企业;支持中小型企业加速发展,在细分市场形成竞争优势;完善机器人产业园区,提高政策优惠力度;协调整合产、学、研、用和跨学科资源,建立以企业为中枢的研发体系,以促进产业集聚和创新行业。     

Web 2.0 and Political Engagement in China

VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - This article examines civic and political engagement in contemporary China by three recent cases where activists and...     

浅谈当代藏族新诗的创作与批评

本文从诗歌批评的角度来研究当代藏族诗歌的创作和发展.鉴于藏族当代诗歌创作与批评相脱节的态势,有必要将创作与批评相结合,创作主体与批评主体相互对话,双向互动进行论述,通过优秀的创作来吸引批评聚焦,通过多元化批评来激励和鞭笞创作,并在文本阐释的基础上突出批评的主体性.     

股权投资企业运营风险的理论探析

以股权投资企业为研究对象,深入分析其经营管理的本质,尝试性地提出了PEF运营风险的定义,并对其具体内容作了概括;通过深入分析PEF的经营管理过程,作者还深入分析了PEF内在的运营机制,并得出初步的研究结果:PEF的运营风险主要集中体现于其资金流动的持续性上,并通过其在资金募集市场、股权投资市场和退出市场的交易成果得到反映。     

国际直接投资收入分配效应的社会福利标准——理论基础、函数测量及其缺陷

经济活动可以通过社会福利判断其效应,资本流动效应则在麦克道格尔模型中得到解释和衡量。国际直接投资作为资本流动的一种特殊经济活动方式,其收入分配效应的福利判断,可以建立在福利经济学的理论基础之上。国际直接投资收入分配效应的社会福利变化,通过柏格森—萨缪尔森方程的变化,在两人两商品的简化模型中,用国际直接投资变量加入前后的差值加以确定。柯布道格拉斯函数为国际直接投资收入分配的计量模型测定提供了基础,可以充分利用时间序列数据,测定国际直接投资收入分配效应所引起的社会福利变化。但就福利经济学的理论基础和演变来看,国际直接投资收入分配效应的福利经济学基础及函数测算,在前提假定及逻辑演变中存在一定的缺陷,主要表现为效用的主观性、外部性产生的福利变化、帕累托最优判断的冲突性问题以及社会福利的合成谬误。因此,国际直接投资收入分配效应的理论运用和实际测算应关注前提假定可能带来的风险和约束。