Revistas Académicas: Envíos recientes
Mostrando ítems 141-160 de 449
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Respuesta Lombard Frente a Ruidos Antropogénicos Cuasiperiódicos: Una propuesta teórica-matemática.
(Universidad Tecnológica Metropolitana., 2022-12)Noise is a form of pollution resulting from the undeniable increase in industrialization worldwide. Anthropogenic noise can have negative effects on the survival of a species, as it can mask acoustic signals relevant to ... -
De las redes de reacciones al surgimiento del metabolismo.
(Universidad Tecnológica Metropolitana., 2022-12)Living systems are instances of far-from-equilibrium dissipative structures. Several theories about their origin have been proposed, but they are hard to test empirically. One promising strategy is to search the minimal ... -
Modeling macroparasite infection dynamics.
(Universidad Tecnológica Metropolitana., 2022-12)In this work we present a general framework for the modeling of the transmission dynamics of macroparasites which do not reproduce within the host like Ascaris lumbricoides, Trichuris trichiura, Necator americanus y ... -
Prey gathering may act as a counterattack measure against predators.
(Universidad Tecnológica Metropolitana., 2022-08)Two generalist predators not interfering with each other and hunting the same single prey that gathers in a herd are here considered. The system allows only two possible final outcomes, the prey-free state in which both ... -
Temporal dynamics of alcohol consumption patterns: The peer pressure and binge drinkers’ role.
(Universidad Tecnológica Metropolitana., 2022-08)Alcohol consumption is a problem of both social and health interest since consumption at an early age increases the probability of developing alcohol dependence, along with a series of risks associated with diseases, ... -
When shape matters: using a simple mathematical model to estimate critical area sizes in conservation.
(Universidad Tecnológica Metropolitana., 2022-08)In the analysis of anthropogenic impact on the environment arises the question of whether the shapes of preserved habitat fragments play an important role in the conservation of wild species. In this work we use a very ... -
An algorithm for the identification of indicator taxonomic units and their use in analyses of ecosystem state.
(Universidad Tecnológica Metropolitana., 2022-08)Biological community structure can be used as an ecological state descriptor, and the sensitivity of some taxonomic groups or biological entities to environmental conditions allows for their use as ecological state indicators. ... -
Modelos Metapoblacionales y su importancia en ecología: más allá de Richard Levins.
(Universidad Tecnológica Metropolitana., 2022-04)The study of metapopulations has played a fundamental role in our understanding Spatial Ecology, Metacommunities and Biogeography, among other areas. Richard Levins, defined the metapopulation as a system of local populations ... -
A metapopulations epidemic model and its measures for potential mitigation.
(Universidad Tecnológica Metropolitana., 2022-04)Strategies attempting to reduce the impact of Covid19 attempted harnessing available geo-spatial, demographic, and behavioural data. Such data has shown to be extremely useful for identifying drivers behind the transmission ... -
Un modelo de población animal afectada por una enfermedad tipo SIR y fragmentación de hábitat.
(Universidad Tecnológica Metropolitana., 2022-04)This work presents a mathematical model that assumes the existence of an animal population that, from an epidemiological point of view, is being affected by an infectious disease of the SIR type and, from an ecological ... -
Metastatic papillary thyroid cancer under treatment with different I-131 protocols: a mathematical model.
(Universidad Tecnológica Metropolitana., 2022-04)A mathematical model was used to study numerically, the metastatic papillary thyroid cancer (PTC) response to protocols of treatment with radioiodine I-131 (RAI), considering different values for the RAI efficiency ratio. ... -
Modelación de la propagación de la COVID-19: contribución prospectiva a las políticas de salud en México a partir del R0.
(Universidad Tecnológica Metropolitana., 2021-12)In this work we present results from epidemiological modeling to describe the propagation of COVID-19 in Mexico, at the national and federal entity levels. In the model we consider that the basic reproductive number, R0, ... -
Influencia del efecto Allee en las presas y de la colaboración entre los depredadores en un modelo de depredación del tipo Leslie-Gower.
(Universidad Tecnológica Metropolitana., 2021-12)Usually in the real world the interactions between predators and their prey are influenced by several behaviors of both prey and predators. Collaboration or cooperation between predators is one of these behaviors, which ... -
Efecto de una mortalidad diferenciada por rasgos fenotípicos sobre la distribución genotípica: un modelo impulsivo para el caso mendeliano.
(Universidad Tecnológica Metropolitana., 2021-12)A diploid, closed, panmictic population that supports a Malthusian growth model is compartmentalized according to its genotype, for a specific locus, into three subpopulations: two homozygous and one heterozygous. Under ... -
When optimal is not the best: Cost-effectiveness analysis for HPV epidemic models.
(Universidad Tecnológica Metropolitana., 2021-12)For this, we consider a two-sex epidemic model for the transmission dynamics of HPV which includes screening, vaccination of adolescent boys and girls, and vaccination of sexually active adults. We first propose public ... -
Serie N° 120: Bibliotecas públicas rurales: espacios de colaboración para la acción comunitaria. Revisión sistematizada.
(Departamento de Gestión de Información de la Universidad Tecnológica Metropolitana., 2022-01)Since its inception, library science has had a close relationship with society and especially with the community it serves. This relationship is based on the commitment acquired by the library and the professionals who ... -
Serie N° 119: Análisis cualitativo y cuantitativo de la serie bibliotecología y gestión de información.
(Departamento de Gestión de Información de la Universidad Tecnológica Metropolitana., 2021-12)After seventeen years of the Universidad Tecnológica Metropolitana’s Serie Bibliotecología y Gestión de Información, its trajectory and qualitative and quantitative characteristics are analyzed, through the systematization ... -
Serie N° 118: Análisis documental de la fotografía histórica: procedimientos y métodos de trabajo.
(Departamento de Gestión de Información de la Universidad Tecnológica Metropolitana., 2021-10)The objective of this research work was to determine the current technical methods and procedures used in the documentary analysis of historical photographs, through a bibliographic review of specialized information on the ... -
Serie N° 117: Trayectorias laborales: bibliotecarias y bibliotecarios en permanente transición.
(Departamento de Gestión de Información de la Universidad Tecnológica Metropolitana., 2021-08)This document presented the results for an independent investigation, contextualized in the present professional of the first generation of Librarians graduated from the Universidad Tecnológica Metropolitana, UTEM in 1994. ... -
Serie N° 116: Percepción de la carrera de bibliotecología por los estudiantes de cuarto medio de la Región Metropolitana de Chile.
(Departamento de Gestión de Información de la Universidad Tecnológica Metropolitana., 2021-06)This article analyzes the librarianship professional career through the perception of students in the last year of high school education in Chile, to know and establish the opinion and characteristics given by students to ...