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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Journal of advanced nursing 52 (2005), S. 0 
    ISSN: 1365-2648
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Aim.  This paper reports on a study investigating the factors which influence parental intent to use the services of a paediatric nurse practitioner in an emergency department.Background.  Research has shown that nurse practitioners provide quality care to paediatric and adult primary care and non-urgent emergency patients. Although there are studies that assess patient satisfaction with nurse practitioner care, there are few that report on what factors initially influence the public to use these services. No studies have examined the factors that affect parental decision-making to access nurse practitioner care in emergency settings for their children.Methods.  A questionnaire was completed by 100 parents who visited a tertiary paediatric emergency department for their child's non-urgent emergency care needs. Information captured included demographic variables, role responsibility tasks that parents would be willing to have a nurse practitioner provide, and parents’ perceptions of the characteristics of the nurse practitioner role. Descriptive statistics and logistic regression were used to analyse the demographic data, percentiles were compiled for the role responsibility tasks, and logistic regression was used to analyse parents’ perceptions of the characteristics of the nurse practitioner role. The data were collected in 2002.Results.  Eighty-three per cent of parents indicated their intention to access nurse practitioner services for a variety of childhood symptoms. Logistic regression revealed that the compatibility of nurse practitioner services with parents’ beliefs and needs was the most statistically significant (P 〈 0·05) independent variable predicting parental intent to use these services. Demographic variables did not have a statistically significant influence.Conclusions.  The public does not seem to understand fully the scope of nursing practice, and this is a concern if people are to feel comfortable with expanded roles for nurses. Thus, the public should be given information that not only describes the role of nurse practitioners, but also includes facts about the scope of practice of Registered Nurses as this may be helpful in producing a favourable attitude towards nurse practitioner care.
    Type of Medium: Electronic Resource
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  • 2
    Publication Date: 2020-11-16
    Description: This paper describes a new instance library for Quadratic Programming (QP), i.e., the family of continuous and (mixed)-integer optimization problems where the objective function, the constrains, or both are quadratic. QP is a very diverse class of problems, comprising sub-classes of problems ranging from trivial to undecidable. This diversity is reflected in the variety of solution methods for QP, ranging from entirely combinatorial ones to completely continuous ones, including many for which both aspects are fundamental. Selecting a set of instances of QP that is at the same time not overwhelmingly onerous but sufficiently challenging for the many different interested communities is therefore important. We propose a simple taxonomy for QP instances that leads to a systematic problem selection mechanism. We then briefly survey the field of QP, giving an overview of theory, methods and solvers. Finally, we describe how the library was put together, and detail its final contents.
    Language: English
    Type: article , doc-type:article
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  • 3
    Publication Date: 2023-11-03
    Description: Mathematical models for optimal decisions often require both nonlinear and discrete components. These mixed-integer nonlinear programs (MINLP) may be used to optimize the energy use of large industrial plants, integrate renewable sources into energy networks, design biological and biomedical systems, and address numerous other applications of societal importance. The first MINLP algorithms and software were designed by application engineers. While these efforts initially proved useful, scientists, engineers, and practitioners have realized that a transformational shift in technology will be required for MINLP to achieve its full potential. MINLP has transitioned to a forefront position in computer science, with researchers actively developing MINLP theory, algorithms, and implementations. Even with their concerted effort, algorithms and available software are often unable to solve practically-sized instances of these important models. Current obstacles include characterizing the computability boundary, effectively exploiting known optimization technologies for specialized classes of MINLP, and effectively using logical formulas holistically throughout algorithms.
    Language: English
    Type: article , doc-type:article
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