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61.
Federico Russo Terri Mannarini Sergio Salvatore 《Journal for the theory of social behaviour》2020,50(3):301-320
Several explanations of the current syndrome affecting advanced democracies make reference to a process of cultural change that has been triggered by the complex and interrelated phenomena known as globalization. The rise of populist-authoritarian parties, the advent of post-truth politics and the increasing dissatisfaction with democracy are seen by many political scientists as rather direct consequences of social and economic transformations which had changed the context in which the democratic process takes place. The main limitation of this literature is that it treats culture as a black box receiving inputs from the social context and translate them into political consequences. By doing so it cannot explain why the same conditions produce different consequences in different contexts and it is silent on the criteria to develop anti-crisis policies. This article argues that some of the insights offered by the Semiotic Cultural Psychology Theory, most notably the idea that cultural evolution is moved by the need to find affect-laden, simplified interpretations of the reality to restore the capacity of making sense on an uncertain socio-political context, can enhance the ability of political scientists to understand the current political phenomena and to develop methodological criteria to counteract the current scenario of democratic crisis. 相似文献
62.
Kathryn?P.?Hacker Amanda?Minter Mike?Begon Peter?J.?Diggle Soledad?Serrano Mitermayer?G.?Reis James?E.?Childs Albert?I.?Ko Federico?Costa
Norway rats (Rattus norvegicus) living in urban environments are a critical public health and economic problem, particularly in urban slums where residents are at a higher risk for rat borne diseases, yet convenient methods to quantitatively assess population sizes are lacking. We evaluated track plates as a method to determine rat distribution and relative abundance in a complex urban slum environment by correlating the presence and intensity of rat-specific marks on track plates with findings from rat infestation surveys and trapping of rats to population exhaustion. To integrate the zero-inflated track plate data we developed a two-component mixture model with one binary and one censored continuous component. Track plate mark-intensity was highly correlated with signs of rodent infestation (all coefficients between 0.61 and 0.79 and all p-values?<?0.05). Moreover, the mean level of pre-trapping rat-mark intensity on plates was significantly associated with the number of rats captured subsequently (Odds ratio1.38; 95 % CI 1.19–1.61) and declined significantly following trapping (Odds ratio 0.86; 95 % CI 0.78–0.95). Track plates provided robust proxy measurements of rat abundance and distribution and detected rat presence even when populations appeared ‘trapped out’. Tracking plates are relatively easy and inexpensive methods that can be used to intensively sample settings such as urban slums, where traditional trapping or mark-recapture studies are impossible to implement, and therefore the results can inform and assess the impact of targeted urban rodent control campaigns. 相似文献
63.
Laura Macchion Alessandro Da Giau Federico Caniato Maria Caridi Pamela Danese Rinaldo Rinaldi 《生产规划与管理》2018,29(1):9-28
Today, the sustainability challenge has become a relevant issue in the fashion industry. However, given that the request for sustainability is relatively new in this industry, empirical research that could guide companies towards supply chain sustainability is lacking. This study aims to deepen the understanding of the main strategic approaches to sustainability used in fashion supply chain management (SCM). Ten case studies were examined in terms of the practices that characterise these approaches. Moreover, contextual factors, drivers and barriers that support or hinder different approaches were identified. To accomplish this goal, both environmental sustainability and social sustainability were investigated, and all the areas of fashion SCM (i.e. new product development, source, make, deliver, retail, return, governance) were considered simultaneously to offer a wide overview of this industry’s sustainability issue. 相似文献
64.
We use a unique dataset from Italy to investigate the impact of socioeconomic characteristics and social capital on family wellbeing and satisfaction. We assess wellbeing using four dimensions of satisfaction with family life: satisfaction with decision making processes, with relationships with partner and children, and with time spent with children. Social capital is measured through information about membership in organizations, trust, and interactions with others. We find that while socioeconomic characteristics in general do not have strong effects on family wellbeing, social capital matters for family life satisfaction.
相似文献65.
Michele Garraffa Federico Della Croce Fabio Salassa 《Journal of Combinatorial Optimization》2017,34(1):71-93
This paper proposes an exact algorithm for the Max-Mean dispersion problem (\(Max-Mean DP\)), an NP-Hard combinatorial optimization problem whose aim is to select the subset of a set such that the average distance between elements is maximized. The problem admits a natural non-convex quadratic fractional formulation from which a semidefinite programming (SDP) relaxation can be derived. This relaxation can be tightened by means of a cutting plane algorithm which iteratively adds the most violated triangular inequalities. The proposed approach embeds the SDP relaxation and the cutting plane algorithm into a branch and bound framework to solve \(Max-Mean DP\) instances to optimality. Computational experiments show that the proposed method is able to solve to optimality in reasonable time instances with up to 100 elements, outperforming other alternative approaches. 相似文献
66.
67.
In this article, we provide a general model of “quaternary” dichotomous voting rules (QVRs), namely, voting rules for making
collective dichotomous decisions (to accept or reject a proposal), based on vote profiles in which four options are available
to each voter: voting (“yes”, “no”, or “abstaining”) or staying home and not turning out. The model covers most of actual
real-world dichotomus rules, where quorums are often required, and some of the extensions considered in the literature. In
particular, we address and solve the question of the representability of QVRs by means of weighted rules and extend the notion
of “dimension” of a rule. 相似文献
68.
Federico HUNEEUS Oscar LANDERRETCHE Esteban PUENTES Javiera SELMAN 《Revue Internationale du Travail》2015,154(2):217-250
Dans les pays où les activités informelles et le travail précaire sont répandus, on peut s'interroger sur la pertinence des taux d'activité et de chômage. Pour analyser le marché du travail brésilien entre 2002 et 2011, les auteurs utilisent ici un indicateur multidimensionnel de la qualité de l'emploi, prenant en compte les revenus, l'existence d'un contrat de travail, le fait de cotiser à la sécurité sociale et l'ancienneté dans l'emploi. Les résultats montrent une augmentation significative de la qualité de l'emploi, surtout de 2009 à 2011, avec d'importantes variations d'un secteur d'activité à l'autre, ainsi qu'entre salariés et indépendants. 相似文献
69.
We study sequential bargaining in many-to-one matching markets. We show that there is an advantage to entering late in the
market, and that the last agent to enter the market will receive his or her best partner in a stable matching, extending the
results of Blum and Rothblum (J Econ Theory 103(2):429–443, 2002) and Cechlárová (Randomized matching mechanism revisited.
Mimeo, Safarik University, 2002) for the marriage model. We also discuss the relation between sequential bargaining and a
possible alternative formulation based on the NTU Shapley value.
We thank Peter Biró and Utku ünver for their advice on the related literature. We also thank an anonymous referee for comments. 相似文献
70.
The purpose of this study is to investigate the relationship between the use of temporary workers and the adoption of new forms of work organisation (NFWO) in production. This study aims to understand to what extent these two forms of human resources flexibility are synergic or mutually exclusive. In order to answer this main goal, we discuss different levels of temporary workers adoption in relation to different levels of use of NFWO, the level of integration of temporary workers within the overall production organisation and the joint and synergistic use of NFWO and temporary work. Evidence drawn from seven case studies in manufacturing plants in northern Italy is provided. Results highlight that, according to the characteristics of the production process, temporary workers and NFWO are not mutually exclusive, that temporary workers can be integrated with other workers in the shop floor, and that NFWO can also be adopted for temporary workers. In addition, NFWO has been proven to be a key enabler to integrate temporary workers within the organisation, thus showing an important synergistic effect between the two human resource flexibility practices. 相似文献