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271.
刘晓华 《北京化工大学学报(社会科学版)》2007,(3):21-25,7
评价材料与环境协调性的生命周期评价方法有环境伦理的哲学基础,是环境伦理的核心观点的科学体现。然而,从科学角度来看的生命周期评价方法的局限性则未必真是它的局限性,在对其作出环境伦理学的说明之后,有些局限性不过是哲学与科学的内在矛盾的体现,是科学自身的局限性的折射而已。 相似文献
272.
浅论反思性教学与反思途径 总被引:1,自引:0,他引:1
刘世娟 《北京化工大学学报(社会科学版)》2007,(3):77-80
"教师发展"是目前教育界关注的焦点,而反思是"发展"的关键环节之一。教师只有学会并掌握科学有效的反思途径,不断对自己的教学行为、教学方法及效果进行反思,才能提高自己的职业判断力,促进自身发展。可以这样认为,反思性教学是教师发展的前提,同时,教师发展又是反思性教学的必然结果。 相似文献
273.
Rapid changes in China over the past two decades have led to significant problems associated with population migration and changing social attitudes, including a growing sex industry and concurrent increases in STIs and HIV. This article reports results of an exploratory study of microbicide acceptability and readiness and current HIV prevention efforts among female sex workers in two rural and one urban town in Hainan and Guangxi Provinces in southern China. The study focused on these women's knowledge and cultural understandings of options for protecting themselves from exposure to STIs and HIV, and the potential viability and acceptability of woman-initiated prevention methods. We report on ethnographic elicitation interviews conducted with women working within informal sex-work establishments (hotels, massage and beauty parlors, roadside restaurants, boarding houses). We discuss implications of these findings for further promotion of woman-initiated prevention methods such as microbicides and female condoms among female sex workers in China. 相似文献
274.
275.
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: |
276.
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278.
论终身教育体系:构架、实现方式及功能 总被引:7,自引:0,他引:7
终身教育体系具有比传统教育体系更优越的教育功能,不但因为具有更齐全的要素与合理的结构,而且更重要的是具有更科学、更合理的实现方式。本文对终身教育体系的构架、实现方式以及功能进行系统的研究与探讨。 相似文献
279.
论全球化背景下的中国非物质文化遗产保护 总被引:39,自引:0,他引:39
我国非物质文化遗产保护问题,有其历史的和社会的、国际的和国内的背景,是回应历史发展的要求而提出的。非物质文化遗产既是建设现代民族文化的基础,也是每个民族对世界文化的丰富和贡献。因此必然要从全人类的视角来看待非物质文化遗产保护问题。从古今文化关系的角度说,非物质文化遗产在多数情况下,既是昨天的实录、今天的现实,同时也是明天的预示;从东西方文化关系的角度看,吸纳外来文化和继承原有传统并不是矛盾的,二者所形成的张力对于创造新的文化起着非常重要的作用。然而,由于非物质遗产大都是农业社会条件下的产物,所以今天对它的保护便包含着许多悖论。例如,保护和发展的关系,结构性对象的解构性保护,对传承人的态度,市场经济体制和非物质文化遗产保护等,都隐含着诸多两难的问题,期待着文化行政部门、学术界以及整个社会给出两全的解决方案。因此,对于非物质文化遗产的保护应该贯彻整体性的原则,从整体上加以认识,进行整体性的保护。从根本意义上说,非物质文化遗产的保护,首先应该是对创造、享有和传承该文化遗产的人的保护;同时,对这一遗产的切实有效的保护,也特别依赖于创造、享有和传承这一遗产的群体。促进和保护文化的多样性发展,才是我们努力追求的目标。 相似文献
280.
This research note combines two national Taiwanese data sets to investigate the relationships among low birth weight (LBW) babies, their parents' educational levels, and their future academic outcomes. We find that LBW is negatively correlated with the probability of such children attending college at age 18; however, when both parents are college or high school graduates, such negative effects may be partially offset. We also show that discrimination against daughters occurs, but only for daughters who were LBW babies. Moreover high parental education can buffer the LBW shock only among moderately LBW children (as compared with very LBW children) and full-term LBW children (as compared with preterm LBW children). 相似文献