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11.
The no-wait job shop problem (NWJS-R) considered here is a version of the job shop scheduling problem where, for any two operations of a job, a fixed time lag between their starting times is prescribed. Also, sequence-dependent set-up times between consecutive operations on a machine can be present. The problem consists in finding a schedule that minimizes a general regular objective function. We study the so-called optimal job insertion problem in the NWJS-R and prove that this problem is solvable in polynomial time by a very efficient algorithm, generalizing a result we obtained in the case of a makespan objective. We then propose a large neighborhood local search method for the NWJS-R based on the optimal job insertion algorithm and present extensive numerical results that compare favorably with current benchmarks when available. 相似文献
12.
Heinz Drügh 《Social Sciences in China》2017,38(4):172-182
The connection between autonomous art and complexity has been extensively and deeply studied in literary theories in the 20th century. The rise of aesthetic autonomy implies the complexity of literary work as the concept of a sealed container arises from the relationship between the parts that make it up. In this model, the interpretation subject works to directly face literary texts. Instead of pursuing the author’s intention, it aims to reproduce the richness and subtlety of the aesthetic state, and consider the richness and subtlety revealed in the maximum amount of text details in literary works, even if procedurally deviating from the way of mainstream understanding. There is increasing skepticism about the consequences of the autonomous aesthetics, which has been coerced by the development of contemporary capitalism, and it is necessary to develop new forms of aesthetics to reflect the changing social situation. 相似文献
13.
Statistical Papers - In event history data, events often are not dated exactly but only a time interval is recorded. In contrast, common estimators for transition rate models assume exactly dated... 相似文献
14.
The issue of convergence or divergence in the European Union (EU) is usually viewed from a macroeconomic perspective, using indicators such as the income per head, the unemployment rate and the inflation rate. Little attention has been paid to the possibility of an associated convergence in ‘well-being’ across countries. Since recent literature has shown that subjective well-being (life satisfaction, ‘happiness’) is significantly affected by macroeconomic variables, it is natural to ask not only whether or not subjective well-being converges, but also, whether, how and to what extent this process is linked to macroeconomic convergence. In this paper we use self-rated life satisfaction elicited in large scale surveys to address these questions. We find evidence of convergence of life satisfaction across the member states of the EU, which can be attributed to a considerable extent to the convergence in macroeconomic conditions. Among the various macroeconomic indicators, the convergence in inflation rates has played a major role for the convergence in life satisfaction. 相似文献
15.
Erika Rost Jörn Sonnenburg Ralf Hanatschek Karsten Heinz Philippe Barré Radovan Fuchs Adriana Gjonaj Florian Gruber Slobodanka Koprivica Slavi Krušic Peter Mayr Iulia Mihail Husein Panjeta Nikos Sidiropoulos Viktor Stefov Anneliese Stoklaska Sándor Szigeti Jean-Luc Teffo Ivan Videnovic Albena Vutsova Dagmar Simon Hildegard Matthies 《Transition Studies Review》2007,14(2):205-261
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Social Indicators Research - Thirty years after reunification, East and West Germany are still characterized by a considerable difference in satisfaction with democracy (SWD). This paper proposes... 相似文献
17.
Correlates of sport participation among community-dwelling elderly people in Germany: a cross-sectional study 总被引:1,自引:1,他引:0
Timo Hinrichs Ulrike Trampisch Ina Burghaus Heinz G. Endres Renate Klaaßen-Mielke Anna Moschny Petra Platen 《European review of aging and physical activity》2010,7(2):105-115
The aims of this study were (1) to analyze the sport participation in a cohort of community-dwelling elderly people in Germany
and (2) to evaluate associations between sport participation, sociodemographic factors, cardiovascular risk factors, and health
status. In a monitored prospective cohort study (getABI), 6,880 unselected patients ≥65 years have been followed up by 344
general practitioners beginning in 2001. As part of the 5-year follow-up telephone interview, a sample of 1,376 participants
was interviewed on sport participation. The association between participation in at least one sporting activity (“sporty”
yes/no) during the past week (cycling) or month (other sports) and the following parameters was analyzed by logistic regression:
age, sex, immigration background, education, waist circumference, smoking, self-reported health, history of vascular events,
diabetes mellitus, lipometabolic disorder, and arterial hypertension. Analysis of activities (n = 1,304; median age 76 (70–94) years; 55.1% women) showed that 27.6% of participants rode a bicycle during the previous week.
During the previous month, 24.9% of participants did gymnastics or strength training, and 16.5% swam. Of all participants,
53.8% were sporty. Multivariate analysis revealed several independent factors to be associated with being sporty (p < 0.05): younger age, male sex, higher education, nonsmoking, better self-reported health, and not being diagnosed with diabetes.
Immigration background, waist circumference, history of vascular events, lipometabolic disorder, and hypertension did not
show a statistically significant association (p ≥ 0.05) with sport participation. Summing up, the most frequently performed sporting activities were cycling, gymnastics
or strength training, and swimming. Sport participation was associated with, for example, age and sex. 相似文献
18.
Karin Grossmann Klaus E. Grossmann Elisabeth Fremmer-Bombik Heinz Kindler Hermann Scheuerer-Englisch Peter Zimmermann 《Social Development》2002,11(3):301-337
This longitudinal study of forty‐four families explored fathers’ as compared to mothers’ specific contribution to their children's attachment representation at ages 6, 10, and 16 years. In toddlerhood, fathers’ and mothers’ play sensitivity was evaluated with a new assessment, the sensitive and challenging interactive play scale (SCIP). Fathers’ SCIP scores were predicted by fathers’ caregiving quality during the first year, were highly consistent across 4 years, and were closely linked to the fathers’ own internal working model of attachment. Qualities of attachment as assessed in the Strange Situation to both parents were antecedents for children's attachment security in the Separation Anxiety Test at age 6. Fathers’ play sensitivity and infant–mother quality of attachment predicted children's internal working model of attachment at age 10, but not vice versa. Dimensions of adolescents’ attachment representations were predicted by fathers’ play sensitivity only. The results confirmed our main assumption that fathers’ play sensitivity is a better predictor of the child's long‐term attachment representation than the early infant–father security of attachment. The ecological validity of measuring fathers’ sensitive and challenging interactive play behavior as compared to infant proximity seeking in times of distress is highlighted. Findings are discussed with respect to a wider view on attachment in that both parents shape their children's psychological security but each in his or her unique way. 相似文献
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