The performance measurement problem has gained great attention in business and operations management literature. The first objective of this study is to determine the required performance measures and to develop a model for performance evaluation, based on these selected measures using analytical hierarchy process (AHP) methodology. The second objective is to explain how an integrated AHP-PGP (pre-emptive goal programming) model can be used in performance measurement while optimising the overall performance. An integration of AHP and multi-objective PGP is used to consider both quantitative and qualitative performance measures in optimising the overall performance of the system. The integrated model is presented with a real-world application using source data provided by a survey conducted in India. Findings demonstrate that the integrated AHP-PGP model can be useful to all supply chain industries in their day-to-day performance measurement decisions. 相似文献
The R-greatest and maximal sets of standard choice theory are extended to fuzzy R-greatest and fuzzy maximal sets. Unlike the precise counterparts of these concepts, these two sets do not in general coincide when preferences are reflexive and connected. A stronger than usual version of connectedness under which the two sets are equal is provided. The concept of a fuzzy choice function is introduced and conditions under which a fuzzy choice function may be rationalized as a fuzzy R-greatest or a fuzzy maximal set are discussed. Rationalizability with transitive and weakly transitive fuzzy preference relations is also considered.We are indebted to Professor P. K. Pattanaik for his comments on an earlier version of this paper. We also wish to acknowledge comments made by an anonymous referee from which this paper has benefited greatly. The usual caveat about errors applies. 相似文献
The purpose of the Voices Project was to give children and adolescents a greater voice in the local and global dialogues about the precursors and solutions to all forms of school violence. This exploratory project incorporates input from youngsters, educators, community partners, and university researchers into the development of a model for non-violent schools and communities. In this article, the Voices Project is described and implications for practice forwarded. 相似文献
Truss design is a well-known structural optimization problem that has important practical applications in various fields. Truss design problems are typically multimodal by nature, meaning that it offers multiple optimal solutions concerning the topology (combinatorial optimization problem) and/or sizes (continuous optimization problem) of the members, but they are evaluated to have similar or equally good objective function values. From a practical standpoint, it is desirable to find as many alternative designs as possible, rather than finding a single design, as often practiced. Several techniques based on classical and metaheuristic optimization methods have been developed for simultaneous optimization of topology and size of a truss. However, all these methods unable to find multiple topologies and their corresponding size solutions in a single run. A few metaheuristics incorporating niching techniques have been developed for finding multiple topologies for the truss design problem, but these studies ignored the fact that for each known topology, multiple design solutions in terms of size can be found. To address this issue, this paper proposes a bi-level truss formulation and subsequently a speciation-based bilevel niching method (BiL-NM) using such a formulation. The BiL-NM consists of a modified SPSO niching method which is robust to find multiple topologies and a canonical PSO for their corresponding size solutions. Extensive empirical studies are carried out to analyze the accuracy, robustness, and efficiency of the BiL-NM. The results confirm that the proposed BiL-NM is superior in all these three aspects over the state-of-the-art methods on several low to high-dimensional truss design problems.
For many years, the concept of gratitude was not considered worthy of investigation by psychologists since research goals were strongly dominated by the deficit-based approach and gratitude concepts were believed to be derived from common sense, and thus not warranting scientific query. This study, in attempting to understand gratitude themes, explores various events that elicit gratitude among engineering students in India. Thirty-two final year engineering students were introduced to gratitude research, administered gratitude exercises, and asked to provide feedback about the exercises. Nested questions, in the form of three-blessings and benefit finding exercises, were used to identify experiences of students leading to gratitude. Content analysis was applied to identify underlying themes and report them systematically. Four major themes and five minor themes were uncovered. Among these, positive emotions was the most prevalent theme and finance was the least encountered theme. Strategies to improve intervention studies, including restricting the area of investigation to one domain and making exercises interesting, have been suggested. Implications of the research within the socio-cultural context have been discussed with special reference to the complexities in separating the sense of duty and gratitude. Further research will provide us with more insights into the topic, specifically from an Indian socio-cultural perspective. 相似文献
The research literature on relational betrayal in a committed relationship has focused on the resulting trauma from the betrayal; however, few studies investigated the potential for posttraumatic growth following a relational betrayal. This study investigated the presence of posttraumatic growth in relationally betrayed women. The research focused on women's perceptions of the relational betrayal, and factors that facilitated posttraumatic growth. Results indicated relationally betrayed women perceived the betrayal as a traumatic event, to the extent that some met criteria for PTSD diagnosis. The passage of time was significant corollary to posttraumatic growth when moderated by a PTSD diagnosis. Finally, certain resources were reported to be more helpful than others in the development of posttraumatic growth. Clinical implications are presented. 相似文献
What happens when five teacher candidates and their professor bring a wordless picturebook into Italian classrooms? This article presents a grounded discussion of our immersive experiences from the United States and the minilessons they taught stemming from a piece of children's literature through our study abroad program in Italy. The opening of Italian classroom doors provided reflective observations of the critical and creative thinking processes of more than 200 Italian students (ages 7–16). We (one professor and five early childhood and special education teacher candidates) taught minilessons in five Italian schools during a monthlong study abroad program offered by our university (further described in Author 1, 2017). Although this project was conducted in Italy, we have since used this minilesson successfully in our own classes, and we invite you to adapt our use to fit your teaching. 相似文献
Through random cut‐points theory, the author extends inference for ordered categorical data to the unspecified continuum underlying the ordered categories. He shows that a random cut‐point Mann‐Whitney test yields slightly smaller p‐values than the conventional test for most data. However, when at least P% of the data lie in one of the k categories (with P = 80 for k = 2, P = 67 for k = 3,…, P = 18 for k = 30), he also shows that the conventional test can yield much smaller p‐values, and hence misleadingly liberal inference for the underlying continuum. The author derives formulas for exact tests; for k = 2, the Mann‐Whitney test is but a binomial test. 相似文献