Indexados Scopus: Recent submissions
Now showing items 741-760 of 1632
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Risk and suicidal ideation and its relationship with impulsivity and depression in school adolescent [Riesgo e Ideación Suicida y su Relación con la Impulsividad y la Depresión en Adolescentes Escolares]
A non-experimental cross-sectional design and explanatory study were proposed in order to analyze the statistical relationship between the suicide risk (SR) and suicidal ideation (SI) and the depression and impulsivity ... -
Removal of Cr (VI) from an aqueous solution using an activated carbon obtained from teakwood sawdust: Kinetics, equilibrium, and density functional theory calculations
Because of its acute toxicity and high mobility, the hexavalent chromium [Cr (VI)] found in wastewater is a risk to the environment. In this study, activated carbon was produced from teakwood sawdust, which was chemically ... -
Representational distance between expert narration and local accounts: A reflection on the politics of evidence in the field of memory in Colombia [Distância representacional entre a narrativa especializada e os relatos locais: Uma reflexão sobre as políticas da evidência no campo da memória na Colômbia] [Distancia representacional entre la narración experta y los relatos locales: Una reflexión sobre las políticas de la evidencia en el campo de la memoria en Colombia]
The paper analyzes the epistemological limits of the narration resulting from the specialized work on memory. It is based, on the one hand, on fieldwork carried out in the stilt villages of Ciénaga Grande de Santa Marta ... -
Remote photoplethysmography (rPPG) for contactless heart rate monitoring using a single monochrome and color camera
Human vital signs are essential information that are closely related to both physical cardiac assessments and psychological emotion studies. One of the most important data is the heart rate, which is closely connected to ... -
Remembering attitudes in the fiction movies of carlos saura over the late francoism and Spanish transition: From the active memory of blindfolded eyes (1978) to the passive memory of sweet hours (1982) [Actitudes ante el recuerdo en el cine de ficción de carlos saura durante el tardofranquismo y la transición española: De la memoria activa de los ojos vendados (1978) a la memoria pasiva de dulces horas (1982)]
This paper discusses the flashback, mental image and metalepsis in two essential feature films belonging to the memorial season that the filmmaker Carlos Saura undertakes over Late Francoism and, above all, Spanish Transition: ... -
Reconstruction of events recorded with the surface detector of the Pierre Auger Observatory
Cosmic rays arriving at Earth collide with the upper parts of the atmosphere, thereby inducing extensive air showers. When secondary particles from the cascade arrive at the ground, they are measured by surface detector ... -
Quantifying Irregular Morphology Electrograms in Atrial Fibrillation Using Fractional Fourier Domains
A fractional Fourier transform-based strategy is proposed for the analysis of morphological irregularities of 933 simulated electrograms recorded from a 3D simulated human atria under atrial fibrillation. Optimum fractional ... -
Psychological characteristics of sports performance: Analysis of professional and semiprofessional football referees
Sports psychology acknowledges the importance of referees in sports. However, evidence is still needed on psychological variables related to refereeing decisions. Psychological characteristics related to sports performance ... -
Prospective vision on virtual education in AntioquiaColombia: Horizon 2050 [Visión prospectiva sobre la educación virtual en Antioquia-Colombia: Horizonte 2050]
Governments are devoting significant resources to propose strategies that disseminate and exploit into prospective studies. In 2019, the Government of Antioquia (Department located in Colombia) launched a program called ... -
Promoting effect of tungsten carbide on the catalytic activity of Cu for CO2reduction
The adsorption of H, CO2, HCOO, O and CO on copper monolayers and submonolayers supported on hexagonal WC(0001) surfaces has been investigated. Calculations have been performed using density functional theory with the ... -
Preliminary study of the production of metabolites from in vitro cultures of C. ensiformis
Background: Canavalia ensiformis is a legume native to Central and South America that has historically been a source of protein. Its main proteins, urease, and lectin have been extensively studied and are examples of ... -
PID tuning method based on IMC for inverse-response second-order plus dead time processes
This work addresses a set of tuning rules for PID controllers based on Internal Model Control (IMC) for inverse-response second-order systems with dead time. The transfer function, and some time-response characteristics ... -
Physicochemical Characterization of Airborne Particulate Matter in Medellín, Colombia, and its Use in an In Silico Study of Ventricular Action Potential
Particulate matter (PM) is a complex mixture of particles that changes over time and from place to place; however, most PM is caused by the fuel combustion of motor vehicles and industry. PM is associated with acute and ... -
Phosphate removal from aqueous solutions by heat treatment of eggshell and palm fiber
Phosphate removal from wastewater and the correspondent sustainable technologies are urgent issues to solve since phosphorous causes eutrophication of water sources. The effect of heat treatment on the mixture eggshell ... -
Optimization of aggregate production costs in textile companies [Optimización de costos de producción agregada en empresas del sector textil]
This article aims to optimize the aggregate production costs in textile companies sector through production strategies in the medium term. For this, an aggregate production planning model called PLAG is developed, which ... -
Order Reduction Rules Based on Statistical Techniques for Inverse Response Processes
In this work, we present a set of rules that transforms the model of Inverse Response Second Order Plus Dead Time Process (IRSODT) and reduces it to a First Order Plus Dead Time (FOPDT) model. We describe the design process ... -
On the principle of planning in public contracting: A theoretical and factual analysis in the colombian legal order [Del principio de planeación en la contratación estatal: Un análisis teórico y fáctico en el orden jurídico colombiano]
The present work has two objectives: (i) to illustrate how the constitutional and principlistic paradigm of our legal system reliably conditions the entire scaffolding of public contracting and, (ii) to demonstrate, by ... -
Numerical modeling parameters by the finite elements method for a hollow concrete block under uniaxial compression load [Parámetros de modelación numérica mediante elementos finitos para un bloque hueco de concreto bajo carga de compresión uniaxial]
The growing demand in modern industry requires increasingly greater demands on the structural performance of the employed materials and, therefore, it has been seen that is necessary to implement a series of numerical ... -
Optical responses in asymmetric hyperbolic-type quantum wells under the effect of external electromagnetic fields
In the present work, some optical properties related to intersubband transitions in finite depth asymmetric hyperbolic-type quantum wells are theoretically investigated. The use of a hyperbolic potential configuration would ...