Enseñanza de las Ciencias – Arquímedes
https://repositorio.ufps.edu.co/handle/ufps/81
2023-02-08T23:29:42ZResiliencia en mujeres universitarias en Norte de Santander, Colombia
https://repositorio.ufps.edu.co/handle/ufps/6656
Resiliencia en mujeres universitarias en Norte de Santander, Colombia; Resilience in University Women in Norte de Santander-Colombia
Vergel Ortega, Mawency; Gómez Vergel, Carlos Sebastian; GALLARDO PÉREZ, HENRY DE JESÚS
La investigación tuvo por objeto analizar la resiliencia de estudiantes
de posgrados de género femenino, en universidades públicas del
Norte de Santander. La investigación tuvo un enfoque cuantitativo
de tipo correlacional, método analítico descriptivo, encuesta y test
de resilience scale, el cual fue aplicado a 150 estudiantes con edades
entre los 27 y 45 años. Como resultado se establece que la resiliencia
se asocia con fortaleza de carácter. Las características de las mujeres
con alto nivel de resiliencia fueron centradas en el saber vivir con
categoría primaria calidad de vida, en el saber conocimiento, en saber
hacer y adquirir mayor destreza en conocimientos y automotivarse
para saber estar. Se concluye que la escala de resiliencia ajustada
con los factores planificación y empatía presenta evidencias de validez
con relación a su estructura interna y fiabilidad de 0.87.; The purpose of the study was to analyze the resilience of female graduate students in public universities
in Norte de Santander. The research used a quantitative approach of a correlational type and a
descriptive analytical method. The study involved the application of a survey and resilience scale test
to 150 students aged between 27 and 45 years old. The results showed that resilience is associated
with strength of character. The characteristics of female university students with a high level of resilience
were centered on quality of life, obtaining knowledge, how to apply this knowledge, acquiring
further, self-motivation and knowing how to be. Conclusion: The resilience scale, adjusted to accommodate
the factors of planning and empathy, presents evidence of validity in relation to its internal
structure and reliability of 0.87.
2021-07-30T00:00:00ZTopological stereotomic structure with the use of palm rachis applying material physics to architectural design
https://repositorio.ufps.edu.co/handle/ufps/6595
Topological stereotomic structure with the use of palm rachis applying material physics to architectural design
Cadena González, I M; Vergel Ortega, Mawency; GALLARDO PÉREZ, HENRY DE JESÚS
The use of ancestral construction techniques in wood has evolved throughout history,
but consequently many species have been disappearing after indiscriminate logging; but the use
of renewable materials is what is needed in the present and in the future after the global pollution
and the ecological footprint of materials such as iron or concrete, so it is necessary to glimpse
new building materials from a renewable approach. To this end, this research focuses on the
application of physicochemistry and physics of materials to establish the feasibility of using
Attalca Butyracea palm rachis as a sustainable material with a novel application in the field of
architecture. For this purpose, a methodology of morphological configuration is applied that
appropriates the identification of specific physical properties together with notions of geometry
and topology applying the concept of topological stereotomic configuration from the operational
tools and morphological actions of the Lucas Períes fold, resulting in a proposal for a topological
stereotomic structure applied to the architectural design of buildings in the municipality of
Pelaya, Colombia.
2021-06-04T00:00:00ZPhysical-mathematical model to determine the structural efficiency of sections shaped as ellipses and parallelograms when used in reinforced concrete columns
https://repositorio.ufps.edu.co/handle/ufps/6559
Physical-mathematical model to determine the structural efficiency of sections shaped as ellipses and parallelograms when used in reinforced concrete columns
MARQUEZ-PEÑARANDA, JORGE FERNANDO; Vergel Ortega, Mawency; GALLARDO PÉREZ, HENRY DE JESÚS
Current practice of structural design of reinforced concrete columns uses mainly
rectangular and circular sections. Among other reasons, this preference is linked to its ease of
construction and spatial efficiency, and the historical inertia of civil works processes. Nowadays,
modern design and construction techniques make possible to study the structural beahviour of
sections distinctively shaped. If typical sections are extended from circular to elliptical and from
rectangular to parallelogram shaped, it is possible to compute mathematical and physical
parameters needed for the structural analysis. This work presents a physical–mathematical model
to determine the structural efficiency in terms of relative strength and stiffness of sections shaped
as ellipses and parallelograms when used in reinforced concrete columns. To solve the model, a
Matlab® code for drawing the column interaction diagram of each studied section was written.
Each diagram describes, in terms of mechanical physics, the relation between the uniaxial
bending and the compression load that defines safety conditions as a mathematical limiting
curve. The governing equation has the form P(m,g)=f(M(m,g) in which P describes the axial
load strength function, M the bending moment strength function, m the material properties, and
g the geometrical characteristics function. Structural efficiency has been expressed as the relative
behaviour of each section with respect to comparable rectangular sections. To obtain the results
of the model, a Matlab® code was written.
2021-06-09T00:00:00ZEstimation of missing data in a geophysical series of precipitation
https://repositorio.ufps.edu.co/handle/ufps/6552
Estimation of missing data in a geophysical series of precipitation
GALLARDO PÉREZ, HENRY DE JESÚS; Vergel Ortega, Mawency; Rojas Suárez, Jhan Piero
The analysis of dynamic systems is a topic of great interest in the basic sciences since
it allows direct inference of the behavior of different systems. The study of physical phenomena
provides large databases that, if recorded at regular time intervals, constitute time series.
However, time series of geophysical data in many cases present missing data and their estimation
requires the application of valid methods that allow estimating reliable information to complete
the series since some analysis methods require these series to be complete. Two methods are
used in this article to estimate the missing values of the precipitation series in the city of San
José de Cúcuta, Colombia, the first one consists of considering the univariate data series and
applying an adjustment of the sequential conditional expectation method of forecasting with
restrictions, the second one refers to analyze the data series of a nearby station and through
multivariate methods establish the cointegration between the series, and then use this as a basis
for estimating the missing data in the analysis series. The two methods are recursive, a first
estimation of the model is made ignoring the missing data, an initial estimation of the missing
data is made, then a new estimation of the model parameters and a new estimation of the missing
data is made, the algorithm continues running with the new values replacing the values estimated
in the previous phase until the difference of the estimated values between successive iterations
is less than a value fixed beforehand. Finally, a comparison is made between the estimates made
by the two methods.
2021-06-09T00:00:00Z