Examinando por Materia "Measurement instruments"

Mostrando 1 - 2 de 2
  • No hay miniatura disponible
    Ítem
    Evaluación de efectos e impactos de las actividades culturales realizadas por la corporación Mariamulata, en San Onofre Sucre
    (Universidad EAFIT, 2024) Gaviria Cano, Sara; Castañeda Osorio, Elizabeth; Vargas Sáenz, Mario Enrique
    This work aims to provide accompaniment to the Mariamulata Corporation, located in the Gulf of Morrosquillo on the shores of the Colombian Caribbean Sea, in the implementation of a social measurement on different cultural activities, artistic and social development developed by the organization in the Rincon del Mar community in recent years; as a resistance strategy to avoid linking children and young people in spaces of violence. The objective is to create social impact measurement tools that allow them to evaluate the implementation of the various cultural programs developed in the community, and thus, achieve greater institutional strengthening that, in turn, provide valuable management information to increase its reach to new donors and sponsors, thus to the community. The study was carried out using the survey mechanism, for the collection of information, on which the measuring instruments were built. The present research arose from the lack of previous studies in which the social impact of the corporation in the community was evaluated , in consequence, this research was divided into two sections, the first section is the collection of information through the survey mechanism, which allows evidencing effects or contributions in the development of different cultural programs in the community; and the second section, the construction of measuring instruments that allow from the beginning of the activities to have metrics to evaluate and compare the results obtained in relation to the objectives initially proposed in a project. In this way, the corporation can evaluate its management, enhance it or reorient it, to build a reliable information system, not only for accountability to its partners, but to measure the extent of social impact, therefore broadening its current donor and sponsor base to a model that includes partnerships and partnerships with other third sector actors such as government, NGOs and other non-governmental corporations, that allows a large-scale and sustainable impact on the community. Specifically, a qualitative retrospective evaluation of the execution of cultural activities developed by the corporation was carried out, and tools were designed for a possible prospective measurement exercise in a nascent project in 2024.
  • No hay miniatura disponible
    Ítem
    Measuring displacement within a transfemoral socket using marker-based optical tracking system: Static tests
    (AMER SOC MECHANICAL ENGINEERS, 2017-01-01) Salazar-Salgado S.; Rendón-Vélez E.
    In lower limb amputees, the comfort and fit of the prosthesis determine whether the user wears or not the prosthesis, fact on which a successful rehabilitation depends. The prosthetic fit is highly related with the relative motion between the socket and the residual limb (i.e., displacement). Displacement has been measured in static and dynamic position and between several surfaces such as skin-socket, liner-socket, bone-socket using various instruments. Marker-based optical tracking system is one of the most recent instruments used for measuring displacement between the socket and the residual limb that solves many of the constraints faced by other measurement instruments. Two options have been reported on the literature for using this instrument: transparent test socket with 2D marker and definite socket with cavities and 3D marker, both facing different limitations. The objective of this study is to evaluate these two options using Marker-based optical tracking system in order to give recommendations and contribute to the use of this method on future research. Two sockets were used for the study: a transparent socket and a definite socket with and without cavities. Six trials were performed using both sockets with three types of markers located inside the socket: 2D circular, 3D hemisphere and 3D sphere. VICON motion capture system was used to detect the visibility of the markers at knee flexion angles (0° to 30°). The results showed that all markers were visible from 15° to 30° knee flexion in all trials. The 2D marker presented difficulty of detection on knee angles from 0° to 10°, especially on the final socket without cavities. 3D hemisphere marker was seen almost all along the knee angles. 3D-sphere marker was visible in all positions, but the relatively large size of these markers may not be adequate to measure displacement. Using the definite socket with the 2D circular and 3D hemisphere markers could be a good option to measure displacement between the residual limb and socket. Using this socket will be closer to reality than doing it on the transparent one. Additionally, the size of the 3D-hemisphere is relatively small, it may not drastically change the behavior between surfaces and as it is a 3D marker it can be better seen by the cameras Further tests should be done with patients walking all along the path in order to assess if the markers visibility is the same on static and dynamic trials. © Copyright 2017 ASME.