Revisiting the Importance of Detachment in the Dynamics of Competition

In this paper, we adopt the framework of analysis of the economy of qualities [Callon, M., Méadel, C. & Rabeharisoa, V. (2002) ‘The economy of qualities’, Economy and Society, vol. 31, no. 2, pp. 194–217] to describe the sales and marketing practices of a French farm supply company whose products have uncertain characteristics and disputed effects. We show that this uncertainty leads sales staff of the company to develop an argument designed to generate attachments but also, and even more importantly, detachments. We also show that these detachments and attachments do not just concern the farmer, the company and its products. To understand the competitive dynamics involved here, it is also necessary to focus on the associations that are broken and established with natural entities, actors in the supply chain, institutions of agricultural science and conceptions of the farming profession.     

Enabling innovation in the face of uncertainty through IT ambidexterity: A fuzzy set qualitative comparative analysis of industrial service SMEs

Taking a configurational approach, this paper investigates the causal configurations of IT ambidexterity (i.e., IT capabilities for exploitation and exploration), dynamic capabilities (i.e., innovation and networking capabilities) and environmental uncertainty that are associated to service innovation performance in small and medium-sized enterprises (SMEs). Results from a fuzzy set qualitative comparative analysis (fsQCA) of 63 industrial service SMEs show that these firms attain high service innovation performance with three different configurations under conditions of high uncertainty. Two configurations highlight the importance of IT exploration capabilities (combined with the absence of innovation and networking capabilities in one configuration and with the absence of networking capabilities and IT capabilities for exploitation in another), whereas another configuration accentuates the importance of IT exploitation capabilities (combined with the presence of innovation and networking capabilities). Our study contributes to the literature in multiple ways. For instance, due to the equifinal properties of the configurational approach, our results suggest that SMEs can attain high innovation performance through both sequential and simultaneous IT ambidexterity, thus providing a starting point for reconciling competing views of IT ambidexterity. Other contributions to theory and practice and avenues for future research are also discussed.     

Identification with sport teams as a function of the searchfor certainty

Abstract

Based on ideas from subjective uncertainty reduction theory, we examined the extent to which individuals hold similar sport team preferences to their family and friends. We also assessed the extent to which perceived sport importance and personal need for structure are influential in the development of team identification. Australian high school students aged 15.5±1.0 years (mean±s) completed questionnaires containing the Personal Need for Structure Scale, the Relational-Interdependent Self-Construal scale, a Team Identification Scale, and items assessing perceptions of sport importance and team preferences. As expected, correlations indicated that preferences for sport teams were significantly related to the preferences of family and friends. Separate analyses of variance confirmed the remaining hypotheses. More specifically, individuals who perceived that sport was important identified with the team more than individuals who perceived sport to be less important. Also, individuals high in personal need for structure scored higher in cognitive/affective team identification than those low in this need. Individuals with differing needs for structure did not differ in their scores on other dimensions of team identification. The results support the notion that cognitive/emotional attachments to sport teams are influenced by perceptions of the importance of sport and by needs for subjective structure. It is possible that other psychological motives, such as the desire for self-esteem, facilitate the development of evaluative dimensions of team identification.     

系统性健康教育对糖尿病患者疾病不确定感的影响

探讨系统性健康教育模式对糖尿病患者疾病不确定感的影响.方法 将2010年6月一2011年6月在我院内分泌科住院的132例糖尿病患者,采用Mishel疾病不确定感量表,按入院先后顺序分为观察组和对照组,每组各66例,观察组采用“面对面”的系统性健康教育方法,对照组只接受传统的健康教育方法.两组患者均在住院当天和出院前1天采用疾病不确定感量表测评.结果观察组出院前1天与入院当天比较P＜0.01,前后有统计学差异,说明经过系统化健康教育对观察组患者的疾病不确定感的得分有显著的影响;出院前1天,观察组与对照组比较P＜0.01,组间差异有统计学意义,说明经过系统化健康教育对观察组患者的疾病不确定感的得分的影响更显著.结论 对糖尿病患者提供系统性健康教育,能显著降低其疾病不确定感.     

Deleuze,action research and rhizomatic growth

Deleuze and his colleagues, particularly Guattari, have had a profound impact on a number of fields of study. The authors argue that their work offers a range of images to help think about and write action research, a way that acknowledges and celebrates the complexities of the sites of action. The article has a divided structure, coherent with the style of Deleuze & Guattari. The authors present some Deleuzian ideas, particularly the concept of rhizomatic growth, and show how they might profitably be used to analyse and write accounts of action research, reflecting the multiplicities of practice, in this case within education. They have shown the potentialities of the ‘rhizome’ as a way to rethink the field of action research, imagining a new epistemology (in which the concepts work, rather than represent) and how the rhizome demands experimental forms of writing ourselves in action research. They show a cartography (of smooth and striated space) that is required to think rhizomatically about action research.     

区间两相模糊多目标模型在种植结构优化中的应用——以辽宁省大连市为例

针对基于“Max-min”算子的区间模糊多目标规划仅采用一或两个控制变量放松所有目标和模糊约束会造成某些约束过满意而某些约束不满意的情况,本文引入两相模糊规划,构建了区间-两相模糊多目标规划模型,并以辽宁省大连市种植结构优化为例进行研究。结果表明,该模型引入多个控制变量放松每个不确定目标和约束条件,且要求它们分别不小于“Max-min”算子中相应目标和约束条件的隶属度,更充分地利用了约束资源,保证了求解的有效性,减少了农业灌溉用水量;另外区间形式的最优解及4种不同情景的优化方案为决策者提供了决策空间,更真实地反映输入参数的不确定性对配置结果的影响。     

在线沟通对顾客网上购买决策影响的实证研究

基于社会学习理论,构建消费者在线沟通模型,研究电子商务中在线沟通的驱动因素和在线沟通促进顾客购买的作用机理,并讨论在线沟通的分类。在C2C电子商务背景下,从淘宝论坛（bbs.taobao.com）上调查数据并采用结构方程加以分析,研究表明,电子商务中的在线沟通可以分为顾客与销售人员沟通和与社会网络成员沟通两类。顾客与销售人员沟通能直接获取购买信息,尤其是网站缺乏趣味性的情况下,顾客更愿意采用沟通的方式获取信息;顾客与社会网络成员沟通可以获取更全面的购买信息,同样能起到促进购买的作用。在线沟通能有效降低顾客购买决策中的不确定性以促进购买。     

祥林嫂心中的死结

祥林嫂心中的死结是由一对对的矛盾构成的。解开祥林嫂无法解开的结,就能深刻地领会文章的主旨,就能进一步揭露封建礼教的欺骗性、虚伪性和残酷性,有力地抨击中国传统文化在民族心理性格方面形成的种种病态,进而唤醒民众的觉悟。     

不确定离散时滞系统的鲁棒H_∞控制

本文主要研究了同时具有状态时滞和输入时滞的不确定离散时滞系统的鲁棒H_∞控制问题。基于二次稳定性理论,采用线性矩阵不等式方法,给出了该系统鲁棒H_∞控制器存在的充分条件和有记忆状态反馈控制器的设计方法。最后利用数值例子说明了该方法的有效性。     

不确定环境中高管团队规模与企业绩效关系的实证研究——基于中国制造业上市公司的证据

就高管团队规模对企业绩效的影响进行了理论分析和实证研究.基于中国制造业上市公司实证研究的结果表明,高管团队规模与企业绩效之间存在倒U型曲线关系.团队规模的扩大不仅会提升企业的资源与能力,而且也可能增加团队内部冲突.外部环境不确定性显著影响了高管团队规模与企业绩效之间的关系.