完善羟丙基瓜尔胶表观黏度质量检测实验研究

为完善羟丙基瓜尔胶表观黏度检测方法,提高检测质量,在行业标准SY/T 5764-2007《压裂用植物胶通用技术要求》基础上,设计了不同条件下表观黏度测试对比实验。检测过程中发现,测试方法、测试条件等因素对表观黏度测试值的影响较大,研究分析得出黏度计转子旋转超过2min时,数据读取比较稳定;高速搅拌胶粉溶液黏度测试值比低速搅拌偏高,约3～4mPa·s;溶液存在上层的泡沫时的溶液表观黏度检测值比去除泡沫检测值偏高,约2～4mPa·s;黏度计转子洁净程度对检测值由上次样品测试值影响。     

加强工程档案管理为燃气行业服务

燃气具有易燃易爆的危险特性,燃气工程的设计施工及管理极其严格,燃气工程档案在城市燃气的实际运行和管理中具有尤为重要的作用和意义,必须加强燃气工程档案管理。     

Wege zwischen beruflicher und hochschulischer Bildung in den deutschsprachigen Ländern

Der neue europ?ische Regulierungsrahmen für Telekommunikation, der bis Mitte 2011 in deutsches Recht umgesetzt werden muss, bietet M?glichkeiten zur Neuausrichtung der Regulierungsziele. Die Autoren diskutieren in diesem Beitrag die M?glichkeiten und potentiellen Probleme der vorgeschlagenen Instrumente sowie weiterer politischer Initiativen der Bundesregierung und der Europ?ischen Kommission in Hinblick auf die ambitionierten Ziele einer fl?chendeckenden Versorgung mit schnellen Internetzug?ngen.     

Gender and Social Consumption

This article examines the relationship between the subordination of women, and the implications of this for female access to, and use of the facilities in public houses and hotels. More research is needed to identify the barriers to female consumption in hotels; the strategies women evolve to overcome these, and the hotel strategies necessary to accommodate female customers.     

年报披露中要强化企业的负债核算

负债是企业承担的,以货币计量的在将来需要以资产或劳务偿还的债务.它代表着企业偿债责任和债权人对资产的求索权.负债按流动性分类,可分为流动负债和长期负债.应加强对非现金资产价值确定方面的信息披露.在年报债务重组事项中,上市公司对非现金资产价值的确定普遍披露得不够明确与充分,致使投资者对其"公允"性产生怀疑.因此,此方面的信息披露应予强化.     

Push and pull factors in medical employees' turnover decisions: the effect of a careerist approach and organizational benefits on the decision to leave the job

This paper aims at understanding the relative impact of 'careerist' attitudes and organizational benefits on prospective turnover decisions. We argue that the push/pull trade-off between careerist attitudes and organizational benefits in relation to turnover is occupation-specific. This is assessed by combining the sociological hypothesis of occupational 'market viability' and the organizational focus on opportunities. Testing this assertion, we examined turnover decisions for four occupational groups from eight medical institutions located in seven geographic areas. Initial results showed occupational variations in the weight given to 'careerist' versus organizational benefits in turnover decisions. Results from two logistic regression models suggest that organizational benefits, in contrast to a 'careerist' orientation to work, restrain occupation-specific turnover behaviour, even when controlling for the effect of perceived opportunities. These results are interpreted in terms of the 'market viability' hypothesis which stresses occupational variations in opportunities. Economic fluctuations for peripheral employees possessing general, rather than firm-specific skills may improve, rather than limit employment alternatives and hence enhance rather than constrain turnover decisions.     

Development of spatial ability extra tasks (SAET): problem solving with spatial intelligence

Quality & Quantity - Spatial ability contributes to performance in science, technology, engineering and mathematics (STEM). Spatial skills and creativity are required for engineering studies....