A graph coloring approach for image segmentation

In this paper we develop a segmentation scheme for digital images based upon an iterative binary coloring technique that takes into account changing behavior of adjacent pixels. The output is a hierarchical structure of images which allows a better understanding of complex images. In particular, we propose two algorithms that should be considered as image preprocessing techniques.     

What drives alignment between offered and perceived well-being initiatives in organizations? A cross-case analysis of employer–employee shared strategic intentionality

This study investigates the conditions of alignment between an organization's business strategy and the well-being initiatives (WBIs) offered to employees and employees' perceptions of the latter. We conducted a comparative study on the conditions of alignment between offered and perceived WBIs in three companies with different business strategies. Findings highlight that the alignment between offered and perceived benefits depends on what we label as “shared strategic intentionality”: (1) how employers use their understanding of the organization's business strategy to craft WBIs and (2) employees' attributions about why their employers offer WBIs the way they do and of the broader understanding of the organization's business strategy. We contribute to the strategic HRM literature by proposing an integrative position with regard to the macro (i.e., employer-focused) and micro (i.e., employee-focused) research traditions. Our position has the advantage of looking at employers' intentions and at employees' attributions of intentions simultaneously, and unravels the central role of business strategy in shaping their alignment. From a practical standpoint, not only do we bring a more nuanced understanding of the strategic HRM challenges faced by employers and employees in settings with different business strategies, but we also initiate a discussion about the traps and best practices associated with configuring effective WBIs in organizations.     

考虑线下权力结构的制造商线上销售模式选择研究

在线下垂直实力对等、制造商主导和实体店主导三种渠道权力结构下，构建制造商、实体店和电商之间的博弈模型，探讨线下渠道权力结构与制造商线上销售模式的匹配关系。研究结果表明：（1）当电商要求的佣金比例较小时，在不同的线下渠道权力结构下，制造商都应该选择线上代销模式；而当电商要求的佣金比例较大时，在线下垂直实力对等结构下，制造商应该选择线上转销模式，而在制造商主导和实体店主导结构下，制造商应该选择线上代销模式。（2）当制造商选择线上转销模式时，在线下制造商主导的结构下，制造商给予实体店的批发价格最大，在垂直实力对等结构下次之，在实体店主导结构下最小。然而，线下渠道权力结构的差异并不会影响制造商给予电商的批发价格。（3）当制造商选择线上代销模式时，在线下制造商主导结构下，线下销售价格最高；在线下垂直实力对等结构下，线上销售价格最高。     

产学研合作的博弈分析及动力机制

以演化博弈为主要分析工具,构建了产方与学研方演化博弈模型,进行了演化稳定策略分析。结果表明:在进行合作教育时,产方与学研方的积极合作是双方的良性演化稳定策略。分析认为,双方最终选择何种策略受到产方与学研方的内在需要和政府部门的外部介入的影响。     

混沌理论视野下的教师教育课程资源观

随着国家教育事业的不断发展,关乎教育质量的教师教育问题愈来愈凸显其重要的意义。当前,我国教师教育课程资源仍存在一些问题。从混沌理论演绎来看,教师教育课程资源应该是一个混沌的综合系统,在课程资源建设中应秉持一种生成性的、发展的及非线性的视角,系统地去认识蕴藏在教师教育系统内部和外部的各种资源,把握好资源流通过程中的＂供＂与＂给＂,发挥各种资源的潜在效能,才能实现整个教师教育培养的可持续发展。     

Lapses,infidelities, and creative adaptations: Lessons from evaluation of a participatory market development approach in the Andes

Participatory approaches are frequently recommended for international development programs, but few have been evaluated. From 2007 to 2010 the Andean Change Alliance evaluated an agricultural research and development approach known as the “Participatory Market Chain Approach” (PMCA). Based on a study of four cases, this paper examines the fidelity of implementation, the factors that influenced implementation and results, and the PMCA change model. We identify three types of deviation from the intervention protocol (lapses, creative adaptations, and true infidelities) and five groups of variables that influenced PMCA implementation and results (attributes of the macro context, the market chain, the key actors, rules in use, and the capacity development strategy). There was insufficient information to test the validity of the PMCA change model, but results were greatest where the PMCA was implemented with highest fidelity. Our analysis suggests that the single most critical component of the PMCA is engagement of market agents – not just farmers – throughout the exercise. We present four lessons for planning and evaluating participatory approaches related to the use of action and change models, the importance of monitoring implementation fidelity, the limits of baseline survey data for outcome evaluation, and the importance of capacity development for implementers.     

An introduction to relationship algebras

Since the introduction and definition of relationship algebras by James (1957), rolatively little use has been made of this theory in experimental design and analysis problems This may be due to the underlying theory of relationship algebras being previously accessible only in books on mathematical structure theory, e.g. van der Waerden (1950) This paper provides a development of the theory of relationship algebras beginning at an elementray level and including only those parts of mathematical structure theory which are essential to this development. An example of its application in derving an analysis due to alling (1967) is presented.     

邪教认识论批判

李洪志的“修炼论”是“法轮功”的认识论基础。运用马克思主义实践论的观点分析批判它所提出的认识论问题 ,具有重要意义     

Differentiating Processes of Control and Understanding in the Early Development of Emotion and Cognition

In this study, we examined the hypothesis that preschoolers' performance on emotion and cognitive tasks is organized into discrete processes of control and understanding within the domains of emotion and cognition. Additionally, we examined the relations among component processes using mother report, behavioral observation, and physiological measures of emotion control. Participants were 263 children (42 percent non‐White) and their mothers. Results indicated that the three approaches of measuring emotion control were unrelated. Regardless of the measurement method, a four‐factor solution differentiating emotion control and understanding and cognitive control and understanding fits the data better than did either of two two‐factor models, one based on domains of emotion and cognition across processes, and one based on processes of control and understanding across domains. Results of this research replicate those of Leerkes et al. in describing a differentiated underlying structure of emotion and cognition processes in early childhood while also extending these conclusions across samples and across measurement approaches for assessing emotion control.     

Assessing program impact using latent growth modeling: a primer for the evaluator

Latent growth modeling (LGM) has emerged as a flexible analytic technique for modeling change over time because it can describe developmental processes at both the inter- and intra-individual levels. The LGM method can also provide a means for testing the contribution of other variables in order to explain variability in growth trajectories. This paper didactically illustrates the use of LGM as an analytical tool in program evaluation. Specifically, a hypothetical evaluation of a high school drug prevention program was used to demonstrate: (a) how LGM can be used to assess the longitudinal impact of a prevention program by comparing treatment and control populations with respect to individual differences in initial status and in rate of change; and (b) how predictors of initial status (post-intervention) and growth selected on the basis of a particular program theory can be incorporated in the model to explain program impact. Some advantages and limitations of using LGM in program evaluation are highlighted.