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  1. Article: An integer programming model to assign patients based on mental health impact for tele-psychotherapy intervention during the Covid-19 emergency.

    Miniguano-Trujillo, Andrés / Salazar, Fernanda / Torres, Ramiro / Arias, Patricio / Sotomayor, Koraima

    Health care management science

    2021  Volume 24, Issue 2, Page(s) 286–304

    Abstract: The Covid-19 pandemic challenges healthcare systems worldwide while severely impacting mental health. As a result, the rising demand for psychological assistance during crisis times requires early and effective intervention. This contributes to the well- ... ...

    Abstract The Covid-19 pandemic challenges healthcare systems worldwide while severely impacting mental health. As a result, the rising demand for psychological assistance during crisis times requires early and effective intervention. This contributes to the well-being of the public and front-line workers and prevents mental health disorders. Many countries are offering diverse and accessible services of tele-psychological intervention; Ecuador is not the exception. The present study combines statistical analyses and discrete optimization techniques to solve the problem of assigning patients to therapists for crisis intervention with a single tele-psychotherapy session. The statistical analyses showed that professionals and healthcare workers in contact with Covid-19 patients or with a confirmed diagnosis had a significant relationship with suicide risk, sadness, experiential avoidance, and perception of severity. Moreover, some Covid-19-related variables were found to be predictors of sadness and suicide risk as unveiled via path analysis. This allowed categorizing patients according to their screening and grouping therapists according to their qualifications. With this stratification, a multi-periodic optimization model and a heuristic are proposed to find an adequate assignment of patients to therapists over time. The integer programming model was validated with real-world data, and its results were applied in a volunteer program in Ecuador.
    MeSH term(s) Adult ; COVID-19/psychology ; Ecuador ; Female ; Humans ; Logistic Models ; Male ; Mental Health ; Middle Aged ; Pandemics ; Psychotherapy ; Telemedicine ; Triage/methods ; Young Adult
    Language English
    Publishing date 2021-04-11
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1469148-6
    ISSN 1572-9389 ; 1386-9620
    ISSN (online) 1572-9389
    ISSN 1386-9620
    DOI 10.1007/s10729-020-09543-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Book ; Online: The Integrated Vehicle and Pollster Routing Problem

    Gutiérrez, Sandra / Miniguano-Trujillo, Andrés / Recalde, Diego / Torres, Luis M. / Torres, Ramiro

    2019  

    Abstract: The National Statistics Bureau of Ecuador carries out monthly polls to monitor the evolution of an economic indicator called "Consumer Price Index", which measures the consumer prices of basic commodities. A set of stores is selected to apply these polls. ...

    Abstract The National Statistics Bureau of Ecuador carries out monthly polls to monitor the evolution of an economic indicator called "Consumer Price Index", which measures the consumer prices of basic commodities. A set of stores is selected to apply these polls. Further, a set of vehicles transports pollsters from the headquarters of the bureau to the stores to perform this activity. Moreover, pollsters move between stores using pedestrian paths or using a vehicle to shorten the travel time. This paper introduces the Integrated Vehicle and Pollster Routing Problem alongside an integer program to model the integrated task of scheduling visits of pollsters to selected stores, as well as routing the vehicle fleet used to transport them. Results on the computational complexity of the aforementioned problem, a three-phase algorithm, and computational experience based on real-world instances are provided.

    Comment: 24 pages, 5 figures, 7 tables
    Keywords Mathematics - Optimization and Control ; Mathematics - Combinatorics
    Subject code 629
    Publishing date 2019-12-11
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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