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排序方式: 共有77条查询结果,搜索用时 31 毫秒
31.
Pinto Sandra Marques; Oliveira-Martins Teresa; Pinto M. Ceu 《Logic Journal of the IGPL》2008,16(1):15-31
The lattice Cong of all dynamic congruences on a given dynamic algebra is presented. Whenever is separable with zero we define dynamic ideal on , given rise to the lattice Ide. The notions of kernel of a dynamic congruence andthe congruence generated by a dynamic ideal are introduced todescribe a Galois connection between Cong and Ide. We study conditions under which a dynamic congruence is determined byits kernel. 相似文献
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Does variety seeking vary between hedonic and utilitarian products? The role of attribute type
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George Baltas Flora Kokkinaki Apostolia Loukopoulou 《Journal of Consumer Behaviour》2017,16(6):e1-e12
The purpose of this paper is to consider attributes that stimulate variety seeking in hedonic and utilitarian product categories and examine the interaction of product category and attribute type on variety‐seeking behaviour. The results of 3 studies indicate that in hedonic product categories, consumers seek more variety in sensory attributes, whereas in utilitarian product categories, they seek more variety in functional attributes. This interaction effect is explained by the fact that the satiation rates of sensory and functional attributes depend on the nature of the product category. In product categories, which are not clearly hedonic or utilitarian, this interaction effect is not evident. The theoretical and practical implications of the findings are discussed. 相似文献
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For each integer n ≥ 2, MVn denotes the variety of MV-algebras generated by the MV-chain with n elements. Algebras in MVn are represented as continuous functions from a Boolean space into a n-element chain equipped with the discrete topology. Using these representations, maximal subalgebras of algebras in MVn are characterized, and it is shown that proper subalgebras are intersection of maximal subalgebras. When A ∈ MV3, the mentioned characterization of maximal subalgebras of A can be given in terms of prime filters of the underlying lattice of A, in the form that was conjectured by A. Monteiro.
Mathematics Subject Classification (2000): 06D30, 06D35, 03G20, 03B50, 08A30.
Presented by Daniele Mundici 相似文献
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为寻找移动支付影响冲动性消费的电生理证据,实验采用两难选择的虚拟购物任务,通过2(支付方式)×2(产品类型)被试内实验设计,结合ERP技术比较移动支付和现金支付下的冲动消费及相关电生理指标。实验数据显示:(1)移动支付下参与者的购买意愿高于现金条件;(2)对享乐品的购买,移动支付下的购买意愿、购买率高于现金支付,而对实用品两种支付下无差异;(3)决策阶段头皮左侧发现,移动支付下享乐品的LPP波幅正于实用品,而现金支付下二者LPP波幅无差异;(4)N2波幅上存在Buy/No Buy效应。结果表明:移动支付促进了享乐品的冲动性消费,决策阶段左侧脑区的LPP波幅可作为其电生理指标,N2波幅表征买与不买。 相似文献
38.
Oliver Kutz 《Studia Logica》2007,85(1):75-104
In [14], we studied the computational behaviour of various first-order and modal languages interpreted in metric or weaker
distance spaces. [13] gave an axiomatisation of an expressive and decidable metric logic. The main result of this paper is
in showing that the technique of representing metric spaces by means of Kripke frames can be extended to cover the modal (hybrid)
language that is expressively complete over metric spaces for the (undecidable) two-variable fragment of first-order logic
with binary pred-icates interpreting the metric. The frame conditions needed correspond rather directly with a Boolean modal
logic that is, again, of the same expressivity as the two-variable fragment. We use this representation to derive an axiomatisation
of the modal hybrid variant of the two-variable fragment, discuss the compactness property in distance logics, and derive
some results on (the failure of) interpolation in distance logics of various expressive power.
Presented by Melvin Fitting 相似文献
39.
Sachin Banker Rene Richardson Gosline Jeffrey K. Lee 《Journal of Consumer Psychology》2020,30(1):140-148
Products bearing premium brand labels are known to increase perceptions of efficacy and improve objective consumer performance relative to lesser‐branded equivalents, in what is traditionally described as a marketing placebo effect. In this paper, we suggest that experiences bearing these highly regarded brand labels can lead to a reverse effect, such that consumer performance actually declines with their use. Our findings demonstrate across domains of improving mental acuity, learning a new language, and developing financial analysis skills that completing performance‐branded training experiences impairs objective performance in related tasks, relative to lower‐performance‐branded or unbranded counterparts. We posit that branded training experiences can evoke a brand‐as‐master relationship in which consumers take on a subservient role relative to the brand. As a consequence, higher‐performance brands may impose greater demands upon consumers, increasing performance‐anxiety and interfering with an individual's ability to perform effectively. These results document an important ramification of applying branding to learning experiences and identify contexts in which traditionally positive marketing actions can backfire for consumers. 相似文献
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This article examines the role of similarity in the hybridization of concepts, focusing on hybrid products as an applied test case. Hybrid concepts found in natural language, such as singer songwriter, typically combine similar concepts, whereas dissimilar concepts rarely form hybrids. The hybridization of dissimilar concepts in products such as jogging shoe mp3 player and refrigerator TV thus poses a challenge for understanding the process of conceptual combination. It is proposed that models of conceptual combination can throw light on the judged future success and desirability of hybrid products in general. The composite prototype model proposes two stages of conceptual combination. In the first stage, the concepts are aggregated into an additive hybrid, simply by forming the union of the two sets of attributes. In the second stage, any conflicting attributes are identified and resolved, often with the introduction of emergent attributes, resulting in an integrative hybrid. Across four studies that varied the similarity and type of hybrid products, similar and integrative hybrids were valued more than dissimilar and additive hybrids. Critically, though, dissimilar hybrids were also highly valued if they were integrative. Results supported the two stages proposed by the composite prototype model, and implications for other models of hybrid formation are discussed. 相似文献