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51.
曾海涛 《陇东学院学报(社会科学版)》2009,(1)
民主问题是当前的热点问题,中国民主问题屡遭西方国家的指责。民主是一种社会制度,没有普适的民主。我们需要借鉴西方民主发展的成果,但民主建设只能走自己的道路。在此将通过三则寓言,对什么是民主、专制做出阐释,对民主建设提供有益的思索。无论正确与否,这种探索都是有意义的,这本身就体现了民主。 相似文献
52.
面对高校在校生人数持续上升、专职辅导员人数严重不足的情况,运用高年级优秀学生的自身优势,参与对低年级尤其是新生的教育管理,一方面可以提升高年级优秀学生的管理素质;另一方面利用他们之间年龄、兴趣、成长阶段的相似性,达到对学生更好的沟通和管理。 相似文献
53.
贾素梅 《河北建筑科技学院学报(社会科学版)》2010,(2):124-125
文章针对在高校档案管理工作中,如何加强教学档案的管理工作,归纳了归档范围,提出了加强档案管理与利用的可行措施。充分发挥教学档案信息资源的开发利用,更好地为教育教学服务。 相似文献
54.
岷江流域是长江上游重要的支流,其生态地位特别重要,本文分析了岷江上游地区面临的基本生态问题,提出了岷江上游地区生态屏障体系建设的原则、依据与目标,根据岷江上游区域生态系统的空间特征、生态敏感性和生态系统服务功能,将该区域划分为三个生态功能区并确立了森林牧草、水域湿地、农田作物等生态屏障建设重点内容,切实有效维护该区域的生态经济可持续发展和资源环境的有效保护。 相似文献
55.
人民币加入SDR 预期对其国际化的影响 总被引:1,自引:0,他引:1
一国货币的国际化程度主要体现在其国际影响力及对国际主要国家货币汇率波动的反应程度。人民币纳入SDR 货币篮子将会改变人民币在国际货币金融体系中的地位与作用,从而影响人民币国际化程度。基于2015 年8 月11 日至2016 年3 月16 日的样本区间数据,通过构建VAR模型实证检验人民币加入SDR 预期因素对人民币国际化程度的影响。结果发现:第一,人民币加入SDR 预期能够提升人民币在国际货币金融体系中的影响力,尤其是人民币对美元的影响力将大大增加,但是其对世界其他主要货币的影响力仍显不足;第二,样本区间内,人民币自由化程度并没有提升,因为人民币汇率并没有随着世界主要货币汇率的波动而有所变化。 相似文献
56.
Lyn Craig 《Journal of Family and Economic Issues》2007,28(1):69-87
Time use studies find that employed mothers reduce their parental childcare time by much less than an hour for every hour
they spend in market work. This paper uses data from the Australian Bureau of Statistics Time Use Survey 1997 (4,059 randomly selected households) to investigate how employed mothers manage to avoid a one-for-one trade-off between
work and childcare. It compares the time allocation of employed fathers, employed mothers and non-employed mothers and finds
that parents use non-parental childcare to reschedule as well as to replace their own childcare, that employed mothers reschedule
activities from weekdays to weekends or to earlier or later in the day, and spend less time than other mothers in housework,
childfree leisure and personal care.
相似文献
Lyn CraigEmail: |
57.
Assessing the effects of land use and land cover patterns on thermal conditions using landscape metrics in city of Indianapolis,United States 总被引:6,自引:0,他引:6
Direct applications of remote sensing thermal infrared (TIR) data in landscape ecological research are rare due to limitations
in the sensors, calibration, and difficulty in interpretation. Currently there is a general lack of methodology for examining
the relationship between land surface temperatures (LST) derived from TIR data and landscape patterns extracted from optical
sensors. A separation of landscapes into values directly related to their scale and signature is a key step. In this study,
a Landsat ETM+ image of Indianapolis, Unites States, acquired on June 22, 2000, was spectrally unmixed (using spectral mixture
analysis, SMA) into fraction endmembers of green vegetation, soil, high albedo, and low albedo. Impervious surface was then
computed from the high and low albedo images. A hybrid classification procedure was developed to classify the fraction images
into seven land use and land cover (LULC) classes. Using the fractional images, the landscape composition and pattern were
examined. Next, pixel-based LST measurements were correlated with the landscape fractional components to investigate LULC
based relationships between LST and impervious surface and green vegetation fractions. An examination of the relationship
between the LULC and LST maps with landscape metrics was finally conducted to deepen understanding of their interactions.
Results indicate that SMA-derived fraction images were effective for quantifying the urban morphology and for providing reliable
measurements of biophysical variables. LST was found to be positively correlated with impervious surface fraction but negatively
correlated with green vegetation fraction. Each temperature zone was associated with a dominant LULC category. Further research
should be directed to the theoretical and applied implications of describing such relationships between LULC patterns and
urban thermal conditions.
相似文献
Dengsheng LuEmail: |
58.
随着科学技术的迅猛发展以及国际交流的日益加深,加之互联网的促动,当代汉语与外语特别是英语的接触进入了前所未有的深广阶段。当代汉语中出现了大量的字母词。字母词是一个原型概念,根据字母词的概念原型,求证出字母词的4个形式指标,由此我们可以得出字母词的15种基本形式。外文原词不具有字母词的任何形式指标,不是字母词。六百万字样本语料库共出现字母词6068词次;平均每种报纸每天出现144.48词次字母词。新闻语体中字母词的平均使用密度为0.711。科技领域的使用密度最高,其次是教育领域;再次是经济领域,军事领域和政法领域使用密度最低。字母词的使用密度和文章领域相关,和地域及报纸性质不相关。 相似文献
59.
试论劳动价值与效用价值的数量关系 总被引:1,自引:0,他引:1
邓宏 《广州大学学报(社会科学版)》2007,6(4):52-56
劳动价值论和效用价值论是关于价值决定的两个最具代表性的理论,一般认为二者是互不相容的。文章从不易产生歧义的“使用价值”概念出发,把自然界和人类劳动对价值的贡献区别开来,进一步澄清了价值相关概念,并发现劳动价值与人工效用在数量上总是相等的。如果把劳动价值论和效用价值论融合起来,价值决定理论可能更为完整。 相似文献
60.
This study examined the characteristics of youth with different types of purpose in life, as well as the associations between adolescents’ life satisfaction, purpose in life, meaning in life, social support, and problematic digital use. The sample included 193 participants aged 14–18 who completed self-report questionnaires on life satisfaction, purpose in life, meaning in life, social support, and problematic digital use. The following purpose in life clusters were found: (1) other-oriented goals (n?=?33); (2) self-oriented goals (n?=?42); and (3) both other- and self-oriented goals (n?=?107). Adolescents with both self- and other-oriented goals had significantly higher life satisfaction, meaning in life, and social support compared to the other groups. Meaning in life and greater support from parents and teachers were significantly associated with greater life satisfaction. In addition, having other-oriented goals was associated with lower life satisfaction. Finally, support from parents (p?=?0.05) mediated the association between problematic digital use and life satisfaction. Findings are discussed in light of previous research and the theoretical and practical implications are examined. 相似文献