Silk and steel: A gendered approach to career and life by upper echelon women executives in the hospitality and tourism industry in China

This qualitative study represents one of the early attempts to uncover the lived experience of thriving of top female leaders in the tourism and hospitality industry in China. Based on the narratives of 21 women executives in the hospitality and tourism industry in China, this study reveals that upper echelon (top management) females thrive by taking a gendered approach to life and career in a cultural environment with a strong Confucian tradition. This research systematically explored the unique gendered orientations and strategies these women executives used to achieve optimal functioning, as manifested in their thriving in both life and career. They acknowledge gender differences, embrace female qualities rather than deny them, and leverage these qualities to their advantage. The study findings offer significant theoretical and practical implications by illuminating a thriving perspective of the career advancement of women.     

基于系统科学的高层梯队战略协同问题研究

董事会和高管团队均是企业战略决策的核心主体,在统一的高层梯队框架下,两者如何实现战略协同、创造协同效应,成为学界迫切需要解决的问题。根据高层梯队理论及系统科学中的复杂系统理论和协同学理论,指出董事会与高管团队的关联性和互补性是创造高层梯队战略协同效应的根源,通过系统建模,对高层梯队的关联性和互补性展开分析,给出高层梯队战略协同效应函数,发现当增效价值大于零时,董事会和高管团队应进行广泛而深入的团队互动;当增效价值等于零时,团队互动过程可有可无;当增效价值小于零时,董事会和高管团队不应进行团队互动。     

异丙托溴铵联合布地奈德混悬液雾化吸入治疗上呼吸感染后慢性咳嗽的临床疗效

目的探讨异丙托溴铵联合布地奈德混悬液雾化吸入治疗上呼吸感染后慢性咳嗽的临床疗效。方法将我院就诊的162例上呼吸感染后慢性咳嗽患者进行随机分组,对照组患者雾化吸入盐酸氨溴索注射液治疗,试验组患者采用复方异丙托溴铵联合布地奈德混悬液治疗,对两组患者的疗效进行评价。结果试验组患者总有效率和显效率明显高于对照组,差异有统计学意义(P<0.05)。结论异丙托溴铵联合布地奈德混悬液雾化吸入治疗上呼吸感染后慢性咳嗽疗效确切,具有较好的安全性和可靠性。     

Life Insurance Policies with Statistical Heterogeneous Population

In the paper we consider an endowment insurance contract with a twelve months maturation time. Using the majorization order and Schur-convex functions we derive upper and lower bounds of the premium, the death and survival benefits for a hetrogeneous population of insureds. The bounds are obtained for the exponential, Balducci, and linear approximations.     

Drivers and projections of vegetation loss in the Pantanal and surrounding ecosystems

Modeling scenarios can help identify drivers of and potential changes in land use, particularly in rapidly changing landscapes such as the tropics. One of the places where most of the recent anthropogenic land use changes have been occurring is the "arc of deforestation" of the Amazon, where several scenarios have been constructed. Such modeling scenarios, however, have been implemented less frequently in wetland areas, but these are also undergoing rapid change. An example is the Pantanal, one of the largest wetlands on the planet located in the Upper Paraguay River Basin (UPRB). The UPRB is formed by the lowland (Pantanal) and the plateau (Cerrado and Amazon where the spring-fed rivers are). We used a spatially explicit model to identify drivers of vegetation loss in the Pantanal and surrounding area (UPRB) and estimated potential vegetation loss for the next 30 years. The model is probabilistic and considers that vegetation loss is contagious, so that the local rate of deforestation increases over time if adjacent sites are deforested, also taking into account the drivers identified in those locations. Our study is the first to simulate vegetation loss at property-scale, over 20,000 properties, for the entire UPRB in Brazil, taking into account the relationship between the plateau, where headwaters are located, and the lowland, where flooded-areas are concentrated. The drivers of vegetation loss identified for the lowland (distance to roads and rivers and elevation) differed from those for the plateau (distance to cities), demonstrating the relevance of analyzing areas separately. The cumulative rate of native vegetation loss projected for 2050 was 3% for the lowland and 10% for the plateau, representing losses of 6045 km² and of native vegetation area decreasing from 87% to 83% and 7960 km² from 39% to 35% respectively by 2050, if changes continue at the same pace and if the environmental legislation is followed. The projected vegetation loss in the UPRB forms a geographical arc, very similar to that observed in the Amazon, from the plateau into the lowland. The arc is directly related to areas with no or low flooding frequency because they are suitable for agriculture. The identification of this arc of vegetation loss calls for urgent conservation policies for this wetland and new perspectives for management.     

Value Functions for Prospect Theory Investors: An Empirical Evaluation for U.S. Style Portfolios

The main aim of this article is to provide a general behavioral analysis that proposes a series of different value functions for prospect theory (PT) investors incorporated into behavioral reward-risk models that are finally solved so as to provide some specific optimal solutions. To do this, general behavioral reward-risk models, which contain all the basic elements of the PT, are first set up. Two reward and risk measures, the upper partial moment and the lower partial moment, are subsequently used to create the various value functions. The technical difficulties arising during the behavioral maximization process are overpassed by adapting the Rubinstein [1982 Rubinstein, R. Y. “Generating Random Vectors Uniformly Distributed Inside and On the Surface of Different Regions.” European Journal of Operational Research, 10, (1982), pp. 205–209.[Crossref], [Web of Science ®] , [Google Scholar]] algorithm. The results show that agents differentiate their behavior according to their type of preferences (S-shaped, reverse S-shaped, kinked convex, and kinked concave value function) but they seem to always prefer small capitalization and high positively skewed value stock portfolios. Probability distortion also affects the optimal solutions of the problem, independently of the employing weighting functional form; when subjective probabilities are employed the optimal weights of the most risky positively skewed assets seem to increase. Probability distortion has an additional important effect on optimal perspective values of the problem driving to a significant increase.     

奥美拉唑联合血凝酶治疗上消化道出血的临床疗效

目的探讨奥美拉唑联合血凝酶治疗上消化道出血的临床疗效。方法选取来我院进行诊断、治疗的80例上消化道出血患者作为研究对象,根据治疗时间顺序将其分为对照组和试验组,对照组患者确诊后进行常规法治疗,试验组患者则采用奥美拉唑联合血凝酶治疗,比较两组患者的治疗效果。结果试验组患者总有效率为95.0%,明显优于对照组患者的85.0%,且在短时间内止血效果明显优于对照组,差异有统计学意义(P<0.05)。结论上消化道出血发诱因较多,患者发病后病情变化较快,采用奥美拉唑联合血凝酶止血效果比较理想,能够帮助患者快速止血。     

浅谈梯队管理模式在高考教学中的运用

学生主体在教学过程中由于各种原因不能实行齐头并进的教学模式。这就使得我们教师来探讨一种适应各种层次的教学模式。这种教学模式和企业的梯队管理存在着相通性,本文作者将通过自己的高考教学实践来阐述梯队管理模式在教学实际中的运用。     

重庆市建设长江上游经济中心的四个资源层次

重庆市建设长江上游经济中心的可利用资源分为四个层次:第一层次是生存基本资源,主要包括自然资源、工业基础和劳动力资源;第二层次是创建美好生活基本资源,主要包括服务资源、旅游资源、区位优势和乐观向上、奋发有为的精神;第三层次是可持续发展基本资源,主要包括科技、人才和企业家;第四层次是关键资源,主要包括先进的思想观念和有利于发挥创造力的环境.     

企业家背景特征对企业国际化战略选择的影响研究——来自中国上市公司国际化的证据

文章采用高价理论研究视角,选取沪深上市公司2003～2007年的数据作为研究样本,实证检验了企业家背景特征对企业国际化战略选择的影响。研究结果揭示:(1)企业家年龄对国际化战略选择的影响呈现复杂的U型曲线关系;(2)企业家受教育程度对企业国际化战略选择的负面影响非常显著;(3)企业家教育专业、职业背景与企业国际化程度显著正相关。鉴于中国企业家所处独特的文化与制度环境,文章也对实证结果作了讨论与解释。