The agri-food production chain in Colombia faces the challenge of reducing the rate of losses of food for human consumption due to waste. The importance of these losses has a greater impact on agricultural production to obtain raw materials for processing and food consumption. From a triple bottom line perspective, the economic, environmental, and social aspects are important and relevant. The methodology used for the ...

The energy transition is one of the main goals of the current government of Colombia. This transition could directly impact not only the hydrocarbon companies but also the entire economy. In this document, a preliminary analysis will be carried out on how the department of Meta would be affected from an energy perspective. This will serve as a baseline for the development of an analysis system on energy supply and ...

Sagu (Maranta arundinacea), is a plant that is characterized by its cylindrical and tuberous rhizomes from which starch is extracted, however, little has been reported about the benefits that its leaves can provide for animal feed. Therefore, the objective of this research was to determine the presence or absence of secondary metabolites in sago leaves and rhizomes and to characterize the fiber of the leaves in order ...

This document is based on the development of the pre-feasibility study of the Pueblito Huilense Ecotourism Park, which starts from the need for sustainable environmental development in Pitalito city, whose socio- economic vocation has been culturally based on the production of coffee, but given the growing market opportunity attracted by the new trends in eco-tourism, agro- tourism as well as the opportunity to take ...

This work studies the numerical approximation of the solution of a non-linear 2D Boussinesq type system, where we implement a posteriori error method for the automatic refinement of the finite element method mesh to reduce the error in the approximation. In previous works, the existence and uniqueness of solutions for this type of system has been studied (Mejía & Muñoz, 2021; Chen, 2009). In this continuation of ...

Meat and its derivatives are the most produced and consumed foods worldwide, being also the most implicated in foodborne diseases (FBD); Campylobacter spp., Salmonella spp., Listeria monocytogenes and Escherichia coli, are the most implicated bacteria in foodborne outbreaks and the ones responsible for the largest recall of batches of food products from the market.  The Polymerase Chain Reaction (PCR) technique ...

There are few existing methods for the evaluation of usability and accessibility that evaluate these for a variety of systems and without focusing on specific types of users. That is why a model has been created that allows usability and accessibility to be evaluated in a general context, dividing this project into three large parts. The first one consists of an introductory and learning part of the most important ...

This working paper presents a case study on inclusive design from a gender perspective of a job search web portal in Colombia. Transgender and non-binary people are discriminated against in Colombia to exercise their right to work, and the main job search web portals are not inclusive. The case study presents the problems that a group of trans and non-binary people experience when interacting with job search web portals, ...

The professional practice course in the Industrial Engineering program of the Universidad Nacional Abierta y a Distancia UNAD Colombia is constituted as an exercise where the student, through a work plan, identifies unmet or partially met needs and proposes relevant solutions based on methods and tools of the discipline. These functions and products are supported by the actors of the process where an essential figure ...

The modeling of dynamic systems implies the application of physical and mathematical processes that allow the description of a system, plant or process that varies in time by means of mathematical and graphical representations in the time domain, frequency domain or by its matrix representation. by state spaces when it comes to mathematical modeling, and by means of flow charts or block diagrams when it comes to graphical ...