1,720,998 research outputs found
Logistic system balancing of servicing home-care in urban areas and surrounding villages
No full textHome care is supportive care provided in the home, mainly offered by licensed healthcare professionals who provide medical treatment needs or by professional caregivers who provide daily assistance to ensure the activities of daily living and hospice care. For these purposes, Europe is developing new long-term care systems, which include the ideas of deinstitutionalization, where provisions of services are changing place from institutional environment to homes of patients. After the study of time, available for servicing, spatial dispersion of facilities and homes of older people who are included in a home-care, such system of health and social services needs to undergo some balancing of activities for optimal allocation of nurses to the supply network. When technology is changing rapidly, the services can be provided in a more effective way and higher agility is required. The spatial dispersion of housing should be particularly considered in planning of the built environment and other new facilities for seniors. Namely, logistic costs per capita are increasing by increasing the dispersion, while there is decreasing density of homes in the functional regions where services are provided. Feasible scheduling and optimal routing are essential for an acceptable trade-off between logistic costs and satisfaction of clients. In our study, we optimize the home healthcare routing and scheduling to balance the necessary workforce and service time requirements at given clustering of homes in the given functional region. The model is based on the ideas of solving the nonlinear balancing problem developed in industrial engineering for line balancing, also known as assembly line nonlinear balancing problem. Mathematical method for line balancing is formalized on the basic idea of the Patterson and Albracht algorithm (1975), where nonlinear problem is linearized to be able to formalize it as a linear programming problem. Here fixed cycle time is relaxed, the operation time is an integer deterministic value. The method for evaluation of the precedence diagram is studied additionally while other balancing procedures follows the similar phases as at Petterson- Albracht algorithm. This mathematical programming tool enables us to study the outputs of various scenarios very rapidly, therefore it might help professionals to be prepared in advance for the coming changes caused by the growing number of seniors and changes of technologies
Managing different demand classes in a spare parts inventory: a practical dynamic allocation strategy
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Povezanost med razširjenostjo okužbe s koronavirusom in delovno mobilnostjo med občinami v Sloveniji
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Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Use of Constraints in the Hierarchical Aggregation Procedure Intramax
Full text linkBackground: Intramax is a hierarchical aggregation procedure for dealing with the multi-level specification problem and with the association issue of data set reduction, but it was used as a functional regionalization procedure many times in the past. Objectives: In this paper, we analyse the simultaneous use of three different constraints in the original Intramax procedure, i.e. the contiguity constraint, the higher-inner-flows constraint, and the lower-variation-of-inner-flows constraint. Methods/Approach: The inclusion of constraints in the Intramax procedure was analysed by a programme code developed in Mathematica 10.3 by the processing time, by intra-regional shares of total flows, by self-containment indexes, by numbers of singleton and isolated regions, by the number of aggregation steps where a combination of constraints was applied, by the number of searching steps until the combination of constraints was satisfied, and by surveying the results geographically. Results: The use of the contiguity constraint is important only at the beginning of the aggregation procedure; the higher-inner-flows constraint gives singleton regions, and the lower-variation constraint forces the biggest employment centre as an isolated region up to a relatively high level of aggregation. Conclusions: The original Intramax procedure (without the inclusion of any constraint) gives the most balanced and operative hierarchical sets of functional regions without any singletons or isolated regions
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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