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51.
In this article, we analyze mortality rates of Finns born in areas that were ceded to the Soviet Union after World War II
and from which the entire population was evacuated. These internally displaced persons are observed during the period 1971-2004
and compared with people born in the same region but on the adjacent side of the new border. We find that in the 1970s and
1980s, the forced migrants had mortality rates that were on par with those of people in the comparison group. In the late
1980s, the mortality risk of internally displaced men increased by 20% in relation to the expected time trend. This deviation,
which manifests particularly in cardiovascular mortality, coincides with perestroika and the demise of the Soviet Union, which
were events that resulted in an intense debate in civil society about restitution of the ceded areas. Because state actors
were reluctant to engage, the debate declined after some few years, and after the mid-1990s, the death risk again approached
the long-term trend. Our findings indicate that when internally displaced persons must adjust to situations for which appropriate
coping behaviors are unknown, psychosocial stress might arise several decades after their evacuation. 相似文献
52.
Maria Fatima Ruiz Paiva Félix Neto María Teresa Muñoz Sastre Nadine Laumond-Salvatore Sheila Rivière Etienne Mullet 《Social indicators research》2009,94(1):173-181
The study was aimed at replicating on a Portuguese sample the seven-factor model of life appraisal (physical autonomy, love
life, family life, social life, occupational life, finances, and leisure life) that was suggested by Salvatore and Munoz Sastre
Social Indicators Research 53:229–255 (2001). A sample of 1,111 Portuguese participants, aged 17–85, was presented with the Appraisal of Life Questionnaire. The “domain” model of life appraisal satisfactorily accounted for the data gathered on the Portuguese sample. Regarding
finances and occupational life, Portuguese scores were lower than French scores. Regarding the occupational score and the
leisure score, a clear linear decrease as a function of age was evidenced in the Portuguese sample. Finally, regarding the
family score and the financial score, a non-linear relationship with age was found. An increase was observed from young adult
age to adult age, and a decrease was observed from adult age to older age. A strong decrease in the physical autonomy scores
among Portuguese females was also observed. 相似文献
53.
中华人民共和国成立以前,云南西北部怒江、独龙江流域居住的独龙族、怒族等邻近族群之间存在着一种共通的"议式语言".这种仪式语言通过宗教祭祀活动以及分享杀牲后的肉食过程体现出来.在这一地域社会中,各种社会、政治和经济关系都依赖于这种仪式语言展开.虽然目前这种分享的仪式日渐式微,但分享的意识依然体现着族群内部的"社会结合"方式.通过独龙族仪式语言的个案分析,旨在与利奇关于克钦社会的"仪式语言"研究进行对话. 相似文献
54.
Charlotta Sirén Pankaj C. Patel Daniel Örtqvist Joakim Wincent 《Long Range Planning》2018,51(6):953-971
Despite the possibility of burnout resulting from dynamics in firms' upper echelons, little if any work has focused on chief executive officer's (CEO's) burnout and firm performance. Drawing on managerial discretion theory, this article analyzes the influence of CEO burnout on firm performance and the moderating roles of the individual (CEO locus of control), structural power (CEO duality and CEO tenure), and organizational characteristics (size, age, and resource availability) related to managerial discretion. Using a sample of 156 CEOs in Swedish firms, we find a negative association between CEOs who report higher burnout and firm performance. Our results confirm that CEO duality and resource availability ameliorate and firm size exacerbates the negative association between CEO burnout and firm performance. Contrary to our expectations, CEO locus of control, CEO tenure, and firm age do not influence this relationship. We discuss the implications of our research for upper echelons theory and strategic leadership theory. 相似文献
55.
Marin Bougeret Guillerme Duvillié Rodolphe Giroudeau 《Journal of Combinatorial Optimization》2018,36(3):1059-1073
In this paper we consider the multidimensional binary vector assignment problem. An input of this problem is defined by m disjoint multisets \(V^1, V^2, \ldots , V^m\), each composed of n binary vectors of size p. An output is a set of n disjoint m-tuples of vectors, where each m-tuple is obtained by picking one vector from each multiset \(V^i\). To each m-tuple we associate a p dimensional vector by applying the bit-wise AND operation on the m vectors of the tuple. The objective is to minimize the total number of zeros in these n vectors. We denote this problem by Open image in new window , and the restriction of this problem where every vector has at most c zeros by Open image in new window . Open image in new window was only known to be Open image in new window -hard, even for Open image in new window . We show that, assuming the unique games conjecture, it is Open image in new window -hard to Open image in new window -approximate Open image in new window for any fixed Open image in new window and Open image in new window . This result is tight as any solution is a Open image in new window -approximation. We also prove without assuming UGC that Open image in new window is Open image in new window -hard even for Open image in new window . Finally, we show that Open image in new window is polynomial-time solvable for fixed Open image in new window (which cannot be extended to Open image in new window ). 相似文献
56.
Mohammed-Albarra Hassan Imed Kacem Sébastien Martin Izzeldin M. Osman 《Journal of Combinatorial Optimization》2018,36(3):1074-1101
In this paper we study the m-clique free interval subgraphs. We investigate the facial structure of the polytope defined as the convex hull of the incidence vectors associated with these subgraphs. We also present some facet-defining inequalities to strengthen the associated linear relaxation. As an application, the generalized open-shop problem with disjunctive constraints (GOSDC) is considered. Indeed, by a projection on a set of variables, the m-clique free interval subgraphs represent the solution of an integer linear program solving the GOSDC presented in this paper. Moreover, we propose exact and heuristic separation algorithms, which are exploited into a Branch-and-cut algorithm for solving the GOSDC. Finally, we present and discuss some computational results. 相似文献
57.
The aim of this paper is to obtain new sharp inequalities for a large family of topological indices, including the second variable Zagreb index \(M_2^{\alpha }\), and to characterize the set of extremal graphs with respect to them. Our main results provide lower bounds on this family of topological indices involving just the minimum and the maximum degree of the graph. These inequalities are new even for the Randi?, the second Zagreb and the modified Zagreb indices. 相似文献
58.
The bureaucratic organization is still regarded as the conventional organizational form, but is ill‐suited to an increasingly pluralistic world. Research on the variety of organizational forms has increased dramatically over the past three decades and offers the potential to understand better how pluralism is manifested and managed within organizations. However, this research remains fragmented. The purpose of this paper is to review and synthesize research on unconventional organizations to explore how organizations resolve or attenuate the tensions related to pluralism. Drawing from research in leading management journals, it covers seven distinct literatures: ‘referent organization’, ‘temporary organization’, ‘pluralistic organization’, ‘meta‐organization’, ‘bridging organization’, ‘hybrid organization’ and ‘field‐configuring event’. For each literature, the authors trace the genealogy of the key concepts and review their distinct insights regarding organizational pluralism. They then synthesize and discuss their collective contributions and conclude with avenues of research for pluralism in organizations. 相似文献
59.
Josep Garcia-Blandon Josep Maria Argilés-Bosch Monica Martinez-Blasco David Castillo Merino 《Journal of Management and Governance》2018,22(4):921-946
Codes of good practices provide a soft alternative to the hard legislation approach to corporate governance. These codes include a set of recommendations that companies are expected to follow in order to enhance governance structures and practices. Some of these recommendations specifically aim to improve the effectiveness of the audit committee. We investigate the relationship between the level of compliance with recommendations on the audit committee of the Spanish Unified Code and financial reporting quality, as measured by discretionary accruals and by the opinion of the audit report. We use a sample of companies listed in the Spanish stock market for the years between 2007 and 2013. Results show a strong and positive relationship between the level of compliance with recommendations and the quality of financial reporting. We also report significant results for some specific recommendations. These results are robust to various checks. Therefore, the level of compliance with recommendations on the audit committee might provide a feasible and reliable indicator of the quality of financial reports released by the company. 相似文献
60.
Francisco J. Aragón Artacho Rubén Campoy Ilias Kotsireas Matthew K. Tam 《Journal of Combinatorial Optimization》2018,35(4):1061-1085
In this work, we propose an optimization approach for constructing various classes of circulant combinatorial designs that can be defined in terms of autocorrelation. The problem is formulated as a so-called feasibility problem having three sets, to which the Douglas–Rachford projection algorithm is applied. The approach is illustrated on three different classes of circulant combinatorial designs: circulant weighing matrices, D-optimal matrices of circulant type, and Hadamard matrices with two circulant cores. Furthermore, we explicitly construct two new circulant weighing matrices, a CW(126, 64) and a CW(198, 100), whose existence was previously marked as unresolved in the most recent version of Strassler’s table. 相似文献