农村留守儿童健康水平及体育干预研究

农村留守儿童身心健康存在不少问题,基本没有形成良好的生活习惯和体育健身意识。通过体育干预,农村留守儿童的心理健康水平明显提高。建议政府继续改善山区学校的体育设施,解决体育师资短缺问题,加快农村体育公共服务体系的建设,为留守儿童创造良好的体育生活条件。     

THE PROPER COPY

Efforts to make (and keep) knowledge public have provided a powerful counter-model to the recent expansion of exclusive intellectual property rights in such arenas as information technology, digital media, biological research, and pharmaceutical access. While sympathetic to the impulse to counteract the new ‘enclosures’ with knowledge made public, this essay critically interrogates some of the constitutive limits – in fact, the constitutive outsides – to these counter formulations. Paying particular attention to how public domain initiatives, like their strict intellectual property counterparts, also police the line between the proper and the improper copy, I argue that mechanisms for keeping knowledge public do not just circle the wagons against the predations of the Monsantos and Microsofts of the world. In their rhetorical and normative commitments to the proper copy, they also risk reproducing some of the same constrictions and exclusions that we tend to associate with (privatized) acts of enclosure itself. I explore this argument first in reference to creative commons and copyright, which can reproduce a strong ideological commitment to improvement – ‘innovation’ or ‘creativity’ – against the mere copy. What is the cost, I ask, of making the idea of improvement the price of admission not just to intellectual property claims, but to participation in newly ‘democratic’ public and common spaces of knowledge production? Second, I look to global pharmaceutical politics – specifically, regulatory efforts to improve access to cheaper copied and generic drugs in Argentina – to raise questions about the public domain's normative place in the continued expansion and harmonization of intellectual property regimes in the so-called global South. Together, these discussions suggest how the public domain and the commons, like their IP counterparts, can rhetorically and normatively expand and be secured against the improper copy.     

视觉冲击下的广告文案的唯美诉求

作为传统的广告诉求方式的广告文案写作，在视觉形象统率的今天，同样需要与时俱进，走出产品机能诉求的怪圈，充分发挥语言文字的特点，转而对产品进行审美层面上的诉求，诸如“体验”、“意境”、“感受”、“自我表现”之类的感性的高层次的诉求，即唯美诉求。从而使广告文案的创意进入一个唯美的时代。     

带Dini导数的泰勒公式

把微分学中函数的泰勒公式推广到了含有Dini导数及左、右导数的函数的情形．     

《蜕庵诗集》版本考

《蜕庵诗集》是元人张翥的诗集。《蜕庵诗集》的源头为张翥本人的手稿,卒后其稿为大杼编次而成手抄本。《蜕庵诗集》的版本,按卷数分类有四卷本、五卷本、两卷本及补遗一卷、不分卷本。有稿本、抄本、刻本几种版本传播。四卷本最为流行,主要有刻本、影印本与抄本三种;五卷、两卷、一卷本主要为手抄本。     

塞原诗人章叶频论

章叶频是受“五·四”新文化运动的影响 ,并在文学革命运动中成长起来的诗人。“九·一八”事变后在《星原》第十四期上首次以红叶的笔名发表《溪畔哀歌》。在国难当头 ,他追随了左翼作家们所身体力行的诗歌大众化的路 ,在他提议下《塞原》推出《新诗歌专号》,他与塞原派其他诸诗人一道把绥远地区诗歌大众化推向了新的高潮。他不但在诗歌创作上获得硕果 ,而且在绥远地区革命文学理论方面也有突出成就。     

环的整体维数和模的自同态

利用模的自同态,研究左整体维数LGD(R)≤n 的环,得到了半单环和遗传环的新特征．     

滚动矩阵及其性质

对矩阵引进了滚动运算，然后研究了它的一些有趣性质。     

《杨嗣昌集》整理底本的形成及其遭遇

《杨嗣昌集》的整理底本为传世的旧钞本《杨文弱先生集》，它形成于清康熙中后期，凝聚了杨家祖孙三代的心血。其书最终没能刊刻，先前是家道中落，资金匮乏；后来文网渐密，政治形势已经不允许。     

初中农村留守儿童学业求助的特点研究

采用学业求助问卷对188名留守儿童与209名非留守儿童进行测试,结果表明:农村留守儿童与非留守儿童在学业求助行为与求助对象上差异显著;农村留守儿童在执行性求助行为方面性别主效应显著,在回避性求助行为方面性别与年级交互效应显著。寄养儿童回避性求助行为得分显著高于非寄养儿童。