马俊仁对“三从一大”和恢复手段的理论与实践   总被引：1，自引：1，他引：0  

凌平 《浙江体育科学》1994,(4)

马俊仁之所以有今天，与他主观努力是分不开的。他敢于挖掘人类的原始本能，向人类的体能极限挑战，并对“三从一大”的传统训练原则赋予了新的内涵。他善于学习、勤于思考、纳百家之长，又坚定地走自己的洛，创造了一套当之无愧的全新的训练方法和恢复手段。因此，马俊仁为成功，应该看作是一种整体创新和突破的综合效应，其内涵极其丰富。  相似文献   

运用多重属性模型方法评定商业健身俱乐部服务质量的研究   总被引：1，自引：0，他引：1  

王璐 《首都体育学院学报》2007,19(3):74-76

采用多重属性模型方法,选取专业与效果、舒适与及时、安全与卫生、 价格与服务、物美与环境、礼貌和诚信六个指标,分别设立问题,经过统计,得出 结论,对俱乐部服务质量进行综合性的评定。  相似文献   

Review: Role of soil rhizobacteria in phytoremediation of heavy metal contaminated soils     

JING Yan-de  HE Zhen-li  YANG Xiao-e 《Journal of Zhejiang University. Science. B》2007,8(3)

Heavy metal pollution of soil is a significant environmental problem and has its negative impact on human health and agriculture. Rhizosphere, as an important interface of soil and plant, plays a significant role in phytoremediation of contaminated soil by heavy metals, in which, microbial populations are known to affect heavy metal mobility and availability to the plant through release of chelating agents, acidification, phosphate solubilization and redox changes, and therefore, have potential to enhance phytoremediation processes. Phytoremediation strategies with appropriate heavy metal-adapted rhizobacteria have received more and more attention. This article paper reviews some recent advances in effect and significance of rhizobacteria in phytoremediation of heavy metal contaminated soils. There is also a need to improve our understanding of the mechanisms involved in the transfer and mobilization of heavy metals by rhizobacteria and to conduct research on the selection of microbial isolates from rhizosphere of plants growing on heavy metal contaminated soils for specific restoration programmes.  相似文献   

中国重化工业发展的环境问题分析与对策研究     

郑永彪 《首都师范大学学报(社会科学版)》2006,(2):51-54

21世纪以来,中国重化工业高速发展带来的环境问题日趋严重,已经阻碍了中国经济的可持续发展。本文在对中国重化工业的环境问题进行经济学分析的基础上,提出了实现中国重化工业可持续发展的新经济模式———循环经济,并从技术、市场、产业政策、法规制度等方面提出了促进重化工业领域循环经济发展的对策。  相似文献   

浅谈清代前期江西佃农抗租斗争的原因     

王安春 《江西教育学院学报》2001,22(2):80-84

清代前期，江西地主阶级追逐地租的欲望有增无减。围绕着分配问题，阶级与广大佃农之间的斗争进一步激烈，斗争的原因大致是佃农反对地主的夺佃、佃农急取永佃权、佃农要求减租、佃农反对交纳押租、预租以及反对地主的残酷镇压等几类型，其中，由地主阶级残酷镇压引起的佃农抗租起义，将清朝前期佃农抗租斗争推向了新的阶段，使清朝的封建统治处于风雨遥之中。  相似文献   

淮南地区克氏原螯虾重金属含量及其污染评价     

刘天骄  陈玉翠 《安徽科技学院学报》2007,21(3):11-13

2006年4至6月,对淮南地区克氏原螯虾(Procambarus clakii)的重金属含量进行了测定.研究结果表明:淮南地区克氏原螯虾肌肉中有一定程度的重金属积累,Cu、和Pb的检出率为100%,Cd的检出率为87.6%.Cu检测出含量的平均值为1.88mg/kg;Cd检测出含量的平均值为0.16mg/kg;Pb检测出含量的平均值为0.67mg/kg.同种生物对不同的重金属含有不同的蓄积能力.  相似文献   

重水与细胞增殖     

郑宇 《闽江学院学报》2002,23(6):81-82

自然界中广泛存在的重水具有抑制细胞增殖的作用,其作用途径表现在对DNA合成的阻滞,对细胞产生“冻结效应“及延长细胞增殖停滞期等方面.抑制程度依细胞种类及分化程度不同而不同.进一步研究重水抑制作用的细胞动力学基础,对重水毒理及生态效应研究有重要意义.  相似文献   

Experimental approaches and analytical technique for determining heavy metals in fallen dust at ferrosilicon production factory in Edfu, Aswan, Egypt   总被引：1，自引：0，他引：1  

Soltan ME  Rageh HM  Rageh NM  Ahmed ME 《Journal of Zhejiang University. Science. B》2005,6(8):708-718

In this study aimed to evaluate the pollution extent of metals and nonmetals inside and outside the ferrosilicon production factory in Edfu, Aswan, Egypt, raw materials (quartz, cokes, iron oxides), ferrosilicon alloy, silica fume, dust and suspended dust (at different sites) samples were collected from the factory, and fallen dust samples were collected from outside the factory, horizontally (at different sites and different distance and directions) and vertically (at different floors in the selected buildings). Gravimetric methods, X-ray fluorescence (XRF), flame photometer, wide range carbon determinator and atomic absorption spectroscopy tools were used for elements determination. The results indicating that the fallen dust and its element contents on southern factory walls being higher than those on eastern factory walls may be due to the nature of the dusts and effects of wind force and wind direction. Fallen dust levels in different regions outside the factory were found to be affected by the distance, direction and floors. The nature of dust samples was affected by gravity and the suspended dust in different factory units depended on the work capacity and method of handling materials by personnel in different production units. Silica fume was a complicated problem, had dangerous effect against the workers' health, and was characterized by high concentrations of SiO2(90.6%～93.6%) and heavy metals (Mn, 420.6×10-6～520.3×10-6; Fe, 2354×10-6～2685×10-6; Co, 80.7×10-6～101.6×10 6 and Ni,5.3× 10-6～6.05× 10-6). The TSP (Total Suspended Particulate) levels in all factory units were higher than the recommended air quality value (70 μg/m3) under Egyptian law. The effect of ferrosilicon factory fallen dust on the surrounding regions decreased with increasing distance between the factory and these regions. The suspended dust samples in the factory units and their components greatly exceeded national and international standards, so health and environmental criteria must be enforced on these units.  相似文献   

应用地积累指数法评价淮河淮南段沉积物中重金属污染   总被引：1，自引：0，他引：1  

陈孝杨  黄河  桑宏庆 《安徽科技学院学报》2006,20(2):35-38

采集淮河淮南段4个采样点的12个沉积物样品,应用电感耦合等离子质谱仪对Pb、Zn、Cu、Cr等重金属的质量浓度进行了测试,并用地积累指数法评价了河流沉积物的重金属污染。结果表明:淮河淮南段沉积物中重金属总量及富集程度不高,富集的时间延展性不甚明显,沉积物受重金属污染的程度轻微。  相似文献   

缓解考生高考压力的对策与建议     

初莉 《湖北招生考试》2006,(16)

高考在为国家选拔人才,提供公平竞争的平台等方面发挥了积极功能,但它同时也带来了一定的负面影响：高考给考生、家长、教师和学校带来了巨大压力。以缓解考生压力这一心理问题立论,从四个方面分析了形成高考压力的深层原因及其所带来的消极影响,并提出相关的对策与建议。  相似文献