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31.
Group concept mapping is a systematic methodology that recognizes participants’ expertise in their own experiences. In this approach, participants share their diverse knowledge and interpret the data generated by all group members. This approach uniquely blends quantitative and qualitative techniques to create illustrative, structured conceptualizations. In this article, we describe the steps in group concept mapping and report feedback on this method from 37 children and youth who participated in group concept mapping studies. We recommend group concept mapping as an engaging way to involve children and youth in research and evaluation activities. 相似文献
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To maintain a chance of occasionally beating a stronger player in a competition waged over several fields, a weaker player should give up on some of the fields and concentrate resources on the remaining ones. But when do weak players actually do this? And which fields do they give up when the fields differ in their likelihood of being assessed? We report an experimental study of resource allocation in which asymmetric pairs of players compete over asymmetric fields. Symmetric players and symmetric fields are used for control. We find that players behave as follows: (1) Average wins are the same in the symmetric and asymmetric fields conditions and correspond to relative player strength. (2) The proportion of fields given up on decreases with a player’s greater relative strength, increases for asymmetric field likelihoods, and increases when competitions are framed in meaningful context; this proportion is related to wins. (3) When field likelihoods are asymmetric, players’ resource allocation is correlated with likelihood. Wins generally increase with that correlation but the relation is different for players of different strength. (4) The proportion of fields given up on and the correlation with likelihood change with experience towards the values corresponding to higher wins. 相似文献
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In the estimation of a proportion p by group testing (pooled testing), retesting of units within positive groups has received little attention due to the minimal gain in precision compared to testing additional units. If acquisition of additional units is impractical or too expensive, and testing is not destructive, we show that retesting can be a useful option. We propose the retesting of a random grouping of units from positive groups, and compare it with nested halving procedures suggested by others. We develop an estimator of p for our proposed method, and examine its variance properties. Using simulation we compare retesting methods across a range of group testing situations, and show that for most realistic scenarios, our method is more efficient. 相似文献
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India made patent policy changes to comply with TRIPs agreement that increased the rights of patent owners. Considering that such policy changes influence both in-house research and development investments and technology licensing from external sources, the firms have to accordingly devise their technology strategy. This study employs a simple and fixed effects multinomial logit regression models to study the impact of policy changes on the technology strategy of 402 firms operating in Indian manufacturing sector from 1999 to 2014. The results show that changes in patent policy have a significant impact on technology strategy of firms. 相似文献
35.
《European Management Journal》2020,38(6):927-938
The implementation of blockchain technology (BCT) is gaining traction in supply chain networks, revolutionising the operation of contemporary supply chains and reshaping the potential of business relationships. Empirical studies on blockchain adoption are scant because implementation across networks is in fairly early phase of development, yet evidence from empirical studies is highly desirable. This is one of the first studies of blockchain adoption in the Greek shipping industry, which has not so far been examined by the literature, in direct comparison to early adopters in other European countries such as Norway. The research examined eight Greek shipping companies using workshops with experienced supply chain personnel. Qualitative analysis identified the current position of these organisations in terms of blockchain adoption, by considering possible benefits and inhibitors to implementation. Despite benefits of automated processes and reduced paperwork as a result of smart contracts, findings show a reluctance to adopt BCT. That is, enterprise resource planning (ERP) transformations have left organisations fatigued and disinclined towards further systems development and resistant to subsequent change. Also, the exposure of shared information in the shipping nexus is considered to cause a threat to competitive survival. 相似文献
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《Social work with groups》2013,36(2-3):73-89
SUMMARY Within the social work profession, one's world view, one's beliefs and values based on one's experiences, strongly influences one's practice and comfort with groups. This paper will examine some of the different ways of viewing the world held by practitioners and students in relation to the likelihood that they will be able to work effectively with groups. Such examination, and the identification of the differences among social workers that results from it has implications for both teaching and supervision in social work. These implications will be discussed and specific principles and techniques for teaching social workers, in education and in supervision, based on their world views will be described. This paper aims to enrich education for group work so that the community of social group work practitioners can grow and continue to thrive. 相似文献
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曾经的辉煌与当下的衰败、曾经的核心与目前的边缘化所造成的失落感,三大圣地、《古兰经》与先知穆罕默德的相继蒙羞和遭辱所带来的受辱感,历史的创伤记忆与现实的生存困窘共同积淀成了一种顽强的集体潜意识,形成阿拉伯—伊斯兰民众仇恨与暴力相交织的心理死结,外现为以暴易暴、铤而走险甚至不断丧失自我。因此,阿拉伯—伊斯兰世界应在不断抵抗西方霸权主义对中东诸多利益的制衡中,努力变革滞后于全球化主潮的落后现状。否则,将面临更为严重的民族和地区的倒退,危及世界和平与稳定。 相似文献