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41.
Financial Strain and Smoking   总被引:1,自引:0,他引:1  
Using the 1999–2005 waves of the Panel Study of Income Dynamics (PSID), this study examines the relationship between family financial strain and smoking among women and men. Family financial strain is reflected by family financial solvency and the availability of emergency funds. Results indicate that individuals residing in families with insufficient emergency funds are more likely to smoke. Moreover, the relationship between insufficient emergency funds and smoking is observed across various income and education groups. Further analysis suggests that the onset of a financial strain increases their probability of a smoking relapse among men by 8–14% points.  相似文献   
42.
绘画作为直观的形象,能迅速、长久地保留在观众的记忆中,用外语对绘画作品中肖像和景物进行描述,可以激活学生记忆中已有的词汇,并能掌握大量新词语.画家借助绘画作品中的图形和色彩来反映生活,而语言大师则通过语言来描述生活中的各种现象.在缺少外语语言环境下,将所学语言国家的绘画艺术引入到外语实践课教学中,既可以帮助学生强化外语单词、词组的记忆,扩大外语词汇量,提高记忆词汇的效率,又可以提高学生口、笔语的实践能力,形成全面的信息储备.  相似文献   
43.
A Fuzzy Decision Tree for Fault Classification   总被引:1,自引:0,他引:1  
In plant accident management, the control room operators are required to identify the causes of the accident, based on the different patterns of evolution of the monitored process variables thereby developing. This task is often quite challenging, given the large number of process parameters monitored and the intense emotional states under which it is performed. To aid the operators, various techniques of fault classification have been engineered. An important requirement for their practical application is the physical interpretability of the relationships among the process variables underpinning the fault classification. In this view, the present work propounds a fuzzy approach to fault classification, which relies on fuzzy if-then rules inferred from the clustering of available preclassified signal data, which are then organized in a logical and transparent decision tree structure. The advantages offered by the proposed approach are precisely that a transparent fault classification model is mined out of the signal data and that the underlying physical relationships among the process variables are easily interpretable as linguistic if-then rules that can be explicitly visualized in the decision tree structure. The approach is applied to a case study regarding the classification of simulated faults in the feedwater system of a boiling water reactor.  相似文献   
44.
This introductory chapter uses a detailed case study to illustrate the interconnection of multiple social influences on one particular youth's path of migration. It further identifies some of the major influences on immigrant youth development, including the stresses of migration, separations and reunifications, changing networks of relations, poverty and segregation, and identity formation.  相似文献   
45.
In order for a repetitive strain injury (RSI) prevention program to be effective, it is important to implement strategies to maintain a client's compliance with the program. This quantitative study explored the effectiveness of computer reminder software in increasing compliance with a stretching program designed to prevent RSI associated with prolonged computer use. Data were collected from a convenience sample of 26 participants who were instructed in a preventative stretching program and assigned to either a treatment group with the computer reminder software, or a control group without the software. To measure compliance, all participants recorded the number of times per day they stretched. Although a statistically significant difference was not found in the mean number of stretch breaks taken by the two groups (p = 0.09), further analysis suggested a type II error may have occurred. The effect size, d, revealed a large effect suggesting that the computer software had an impact on the frequency of stretch breaks, with the mean number of breaks per hour of work greater for the treatment group. Results strongly suggest that further research is warranted in this area.  相似文献   
46.
The digital age is a game-changer for the communication between organizations and stakeholders. Relationships are pivotal to public relations. However, their conceptualizations, measures, and normative assumptions have neither been analyzed systematically and across disciplines, nor have they been studied in light of the changing digital communication landscape. This article re-examines the relationship paradigm in public relations and marketing in an online environment. By means of a systematic review, it seeks to explicate communicative relationships between organizations and their diverse stakeholders, to review how they are operationalized and measured, and to illuminate their normative evaluations. This conceptual specification is guided by systematic sampling and content analysis of all primary research on organization-stakeholder relationships in the broader social sciences. Results of a comprehensive analysis of 74 articles suggest that studies overemphasize the business contexts, follow an instrumental orientation based on transactions rather than communication, and lack analyses of digital data. To explicate a PR understanding of digital communicative organization-stakeholder relationships, a definition is provided and a research agenda is offered on theory, measures, and blind spots.  相似文献   
47.
Urban Ecosystems - Large and comparatively compact European cities such as Bucharest and Leipzig struggle with considerable urban heat island (UHI) effects characterized by heat and drought...  相似文献   
48.
In the offshore petroleum industry, employees are transported to and from the offshore installations by helicopter, which represents a major risk. This paper analyzes how to improve transportation safety by solving the helicopter routing problem with a risk objective expressed in terms of expected number of fatalities. A mathematical model is proposed and a tabu search heuristic is applied to this problem. Three routing policies are considered: a direct routing policy, a Hamiltonian routing policy, and a general routing policy. Extensive computational experiments are conducted on instances derived from real data in order to assess and compare these policies under a travel time, a passenger risk and a combined passenger and pilot risk objective. Several management insights can be derived from this study. In particular, our results show that passenger transportation risk can be reduced by increasing travel time at the expense of pilot risk. This can be achieved through a reduction of the average number of passengers onboard by applying either a Hamiltonian or a general routing policy. Our methodology can also be used to derive an equitable distribution of risk between passengers and pilots, considering that pilots fly much more frequently than passengers.  相似文献   
49.
We present a risk analysis undertaken to mitigate problems in relation to the unintended deployment of slides under normal operations within a commercial airline. This type of incident entails relevant costs for the airline industry. After assessing the likelihood and severity of its consequences, we conclude that such risks need to be managed. We then evaluate the effectiveness of various countermeasures, describing and justifying the chosen ones. We also discuss several issues faced when implementing and communicating the proposed measures, thus fully illustrating the risk analysis process.  相似文献   
50.
The study explores through a ‘transnational lens’ the Romanian media construction of remitting practices and identities within a wider debate on circular migration. It uses a broad definition of remittances (financial, sociocultural and political) and is concerned with the role of the Romanian press in articulating migrant–non-migrant relationships and laying the ground for informed policy debates. The methodology consists of qualitative corpus analysis and discourse analysis applied to a corpus of 221 news articles. The main findings indicate an overall positive evaluation of remittances (with the main exception of family separation), which endows migrants with social recognition as development agents and is used to justify various policy initiatives, but at the same time disempowers them through instrumentalisation. Even though limited in scope, grassroots migrant–non-migrant interaction, combined with a critical journalistic stance in editorials, opens up an avenue towards negotiation and joint transnational actions.  相似文献   
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