33,383 research outputs found
Validation of the New Mix Design Process for Cold In-Place Rehabilitation Using Foamed Asphalt, 2007
No full textAsphalt pavement recycling has grown dramatically over the last few years as a viable
technology to rehabilitate existing asphalt pavements. Iowa's current Cold In-place
Recycling (CIR) practice utilizes a generic recipe specification to define the
characteristics of the CIR mixture. As CIR continues to evolve, the desire to place
CIR mixture with specific engineering properties requires the use of a mix design
process. A new mix design procedure was developed for Cold In-place Recycling
using foamed asphalt (CIR-foam) in consideration of its predicted field performance.
The new laboratory mix design process was validated against various Reclaimed
Asphalt Pavement (RAP) materials to determine its consistency over a wide range of
RAP materials available throughout Iowa. The performance tests, which include
dynamic modulus test, dynamic creep test and raveling test, were conducted to
evaluate the consistency of a new CIR-foam mix design process to ensure reliable
mixture performance over a wide range of traffic and climatic conditions. The “lab
designed” CIR will allow the pavement designer to take the properties of the CIR into
account when determining the overlay thickness
A multilevel integrative approach to hospital case mix and capacity planning.
No full textHospital case mix and capacity planning involves the decision making both on patient volumes that can be taken care of at a hospital and on resource requirements and capacity management. In this research, to advance both the hospital resource efficiency and the health care service level, a multilevel integrative approach to the planning problem is proposed on the basis of mathematical programming modeling and simulation analysis. It consists of three stages, namely the case mix planning phase, the master surgery scheduling phase and the operational performance evaluation phase. At the case mix planning phase, a hospital is assumed to choose the optimal patient mix and volume that can bring the maximum overall financial contribution under the given resource capacity. Then, in order to improve the patient service level potentially, the total expected bed shortage due to the variable length of stay of patients is minimized through reallocating the bed capacity and building balanced master surgery schedules at the master surgery scheduling phase. After that, the performance evaluation is carried out at the operational stage through simulation analysis, and a few effective operational policies are suggested and analyzed to enhance the trade-offs between resource efficiency and service level. The three stages are interacting and are combined in an iterative way to make sound decisions both on the patient case mix and on the resource allocation.Health care; Case mix and capacity planning; Master surgery schedule; Multilevel; Resource efficiency; Service level;
A multi-phase study of contemporary policy and practice in determining nursing skill mix in acute hospitals in Ireland.
No full textThe profession of nursing has undergone significant changes in Ireland in the last decade, within the wider health service reform context. Determining the optimal nursing skill mix for acute hospitals is perceived as important to ensure the efficient use of the nursing workforce in the provision of safe and high quality care. However, the term nursing skill mix, though widely used, is contested, and practices to determine skill mix in acute hospitals in Ireland are poorly understood.
The aim of the study was to examine contemporary policy and practice in determining optimal nursing skill mix in acute hospitals in Ireland. The objectives were to analyse current policy approaches used to determine skill mix nationally and internationally, to examine how the term nursing skill mix is understood and used by managers and policy makers in Ireland and to explore nursing roles in contemporary practice.
A review of national and international policy was undertaken highlighting that despite increasing interest nationally and internationally in various approaches to determining optimal nursing skill mix that there is little evidence base for or standardisation of approaches.
Following this, semi-structured interviews with 54 nursing managers and policy makers were conducted to explore different perspectives on how nursing skill mix is understood and determined in acute hospitals in Ireland.
Themes identified in this study relate to the diversity of influences on skill mix; nursing role ambiguities and inconsistencies in nursing skill mix practices. Results from the quantitative analysis of closed-ended questions confirmed a lack of clarity of who is involved in determining nursing skill mix, the various influential factors and the main principles associated with determining nursing skill mix.
The key conclusions of this study relate to the subjective-objective paradox between the complexity of everyday clinical practice settings and the objective methods proposed to determine skill mix and the macro-micro disconnect of methods and approaches across policy makers and nurse managers. There is a need to integrate the macro-micro and subjective-objective tensions in the development of skill mix policy and practice for nursing in Ireland. Adopting effective skill mix practices will facilitate the effective implementation of key healthcare reforms that optimally utilise the nursing workforce
The Fleet Size and Mix vehicle Routing Problem with backhauls: Formulation and Set partitioning-based heuristics
No full textIn this paper we present a new variant of the classical Vehicle Routing Problem – the Fleet Size and Mix Vehicle Routing Problem with Backhauls (FSMVRPB). An ILP formulation of the FSMVRPB is presented. Optimal solutions for small size instances are produced and upper and lower bounds are generated for larger ones. In this paper we also propose a Set Partitioning Problem (SPP) based heuristic. Three frameworks are developed and tested on a set of new FSMVRPB data instances which we generated. Computational results are presented which can be used for future benchmarking
Letter from John Y. Bryant to Charles E. Mix, 1858
No full textAsks in regards to the claim of E. G. Hilton for clerical services rendered to O. M. Wozencraft in California
Letter from James Y. McDuffie to Chars E. Mix, 1859
No full textReports his delayed arrival due to missed steamer. Will execute his offical bond as superintendent. Will faithfully attended to the deposits
Letter from John Y. Bryant to C. E. Mix, 1860
No full textIn regards to a bill of certain seeds furnished by James Tobin to the Mendocino Reservation. Bill not enclosed as indicated by letter
Letter from John Y. Bryant to C. E. Mix, 1862
No full textEnclosed M. B. Lewis' letter relative to the accounts of Wm. J. & E. G. Campbell for supplies furnished and service rendered
Letter from Jas. Y. McDuffie to C. E. Mix, 1859
No full textStates his official bond has been approved by the U.S. Attorney and that he will proceed immediately to receive the public property from the late superintendent
The importance of the marketing mix in the start-up business
No full textLos emprendimientos se han convertido en una forma de negocio haciendo que el mercado evolucione, creando demanda laboral y generando nuevas oportunidades de negocio, por esta razón es importante implementar herramientas como el marketing mix ya que permite darle a conocer al administrador todos los ámbitos en los que se desenvuelve la organización y como esto lo puede afectar y así mismo apoyarlo en la toma de decisiones.Entrepreneurship has become a form of business, making the market evolve, creating labor demand and generating new business opportunities, for this reason it is important to implement tools such as the marketing mix as it allows to inform the manager of all the areas in which the organization operates and how this can affect it and also support him in making decisions.Pregrad
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