President Xi Jinping has constantly taken theeconomic development as the central work from theperspective of historical materialism and dialecticalmaterialism. He corresponds to the law of economicdevelopment, and acc...President Xi Jinping has constantly taken theeconomic development as the central work from theperspective of historical materialism and dialecticalmaterialism. He corresponds to the law of economicdevelopment, and accurately masters the important logicrelations between economy and politics, government andmarket. Meanwhile, he proposes that China should useoverall planning to deal with the difficulty of urban-ruralintegration so as to thoroughly solve the three agriculture-related issues. Then, it is possible to achieve the organicunity of purposiveness and regularity.展开更多
Analyzed roof rock layer structure and rock layer thickness of -550 level west main roadway and proposed that the stability of calcareous rock layer was the premise of mining successfully. According to different roof ...Analyzed roof rock layer structure and rock layer thickness of -550 level west main roadway and proposed that the stability of calcareous rock layer was the premise of mining successfully. According to different roof condition and rock pillar size of main roadway, different reinforcement plans were used to strengthen the stability of rock layer. By studying the influence rule and influence scope of dynamic pressure of main roadway wall rock because of fully mechanized coal face extracting, that the size of rock pillar was the key of affecting wall rock distorting was proposed. Scientific basis was provided for determining the size of reasonable rock pillar, selecting reasonable extracting support plan and reinforcement measures under different wall rock conditions.展开更多
目的探究轮班对地铁职工健康相关生命质量的影响,为提高该职业人群的健康素养提供科学依据。方法2019年对武汉市地铁集团职工进行研究,使用调查问卷收集人口学特征和职业史等信息。用生活质量评价量表(the Mos 36-item Short Form Healt...目的探究轮班对地铁职工健康相关生命质量的影响,为提高该职业人群的健康素养提供科学依据。方法2019年对武汉市地铁集团职工进行研究,使用调查问卷收集人口学特征和职业史等信息。用生活质量评价量表(the Mos 36-item Short Form Health Survey,SF-36)测定其健康相关生命质量;按照性别分层,采用单因素和多因素Logistic回归模型分析轮班对该职业人群量表各维度得分的影响。结果9960名职工中有68.6%从事轮班工作。不同性别、工种、被动吸烟状况、锻炼习惯、睡眠状况、个人疾病史亚组人群的SF-36量表得分有显著差异(P<0.05)。与不轮班者相比,不同轮班制职工的一般健康状况、健康变化和社会功能等维度得分为差的风险均较高。并且随着轮班年限的增加,轮班者在身体机能、生理职能、一般健康状况、健康变化、精力、社会功能和精神健康维度得分为差的风险呈现为先升高再趋于平缓甚至下降的趋势。在男职工中,轮班制影响其SF-36量表各维度得分,但在女职工中未见此影响。结论轮班工作可能是影响地铁职工健康相关生命质量的重要危险因素之一,尤以男职工为甚。展开更多
文摘President Xi Jinping has constantly taken theeconomic development as the central work from theperspective of historical materialism and dialecticalmaterialism. He corresponds to the law of economicdevelopment, and accurately masters the important logicrelations between economy and politics, government andmarket. Meanwhile, he proposes that China should useoverall planning to deal with the difficulty of urban-ruralintegration so as to thoroughly solve the three agriculture-related issues. Then, it is possible to achieve the organicunity of purposiveness and regularity.
文摘Analyzed roof rock layer structure and rock layer thickness of -550 level west main roadway and proposed that the stability of calcareous rock layer was the premise of mining successfully. According to different roof condition and rock pillar size of main roadway, different reinforcement plans were used to strengthen the stability of rock layer. By studying the influence rule and influence scope of dynamic pressure of main roadway wall rock because of fully mechanized coal face extracting, that the size of rock pillar was the key of affecting wall rock distorting was proposed. Scientific basis was provided for determining the size of reasonable rock pillar, selecting reasonable extracting support plan and reinforcement measures under different wall rock conditions.
文摘目的探究轮班对地铁职工健康相关生命质量的影响,为提高该职业人群的健康素养提供科学依据。方法2019年对武汉市地铁集团职工进行研究,使用调查问卷收集人口学特征和职业史等信息。用生活质量评价量表(the Mos 36-item Short Form Health Survey,SF-36)测定其健康相关生命质量;按照性别分层,采用单因素和多因素Logistic回归模型分析轮班对该职业人群量表各维度得分的影响。结果9960名职工中有68.6%从事轮班工作。不同性别、工种、被动吸烟状况、锻炼习惯、睡眠状况、个人疾病史亚组人群的SF-36量表得分有显著差异(P<0.05)。与不轮班者相比,不同轮班制职工的一般健康状况、健康变化和社会功能等维度得分为差的风险均较高。并且随着轮班年限的增加,轮班者在身体机能、生理职能、一般健康状况、健康变化、精力、社会功能和精神健康维度得分为差的风险呈现为先升高再趋于平缓甚至下降的趋势。在男职工中,轮班制影响其SF-36量表各维度得分,但在女职工中未见此影响。结论轮班工作可能是影响地铁职工健康相关生命质量的重要危险因素之一,尤以男职工为甚。
