bluuebunny/crossref_metadata_2025 huggingface dataset:
El proceso de investigación en la elaboración de un diccionario de parlache
Authors: Castañeda Naranjo Luz Stella , Henao Salazar José Ignacio
Published: September 2023

RESUMENEn este artículo sintetizamos el proceso de investigación que se siguió en la elaboración del diccionario de parlache. Explicamos cómo se recogieron y sistematizaron los datos y señalamos las características esenciales del diccionario de uso que realizamos.ABSTRACTIn this paper we summarize the research process followed in the preparation of The Parlache Dictionary. We explain how the data were collected and systematized and we show the essential features of this usage dictionary we carried out, as well.
Koike, Kazumi, 2001, Colocaciones Léxicas en el Español Actual: Estudio formal y léxico-semántico, Alcalá: Universidad de Alcalá
Authors: Arboleda Granda Diego
Published: September 2023

En el libro Colocaciones Léxicas en el Español Actual: Estudio formal y Léxico-semántico Kazume Koike somete al análisis las posibles colocaciones léxicas españolas formadas por un verbo y un sustantivo, y por un sustantivo y un adjetivo.
Fuentes para el estudio historiográfico de la literatura colombiana. A propósito del CD-ROM que acompaña esta edición
Authors: Vallejo Murcia Olga
Published: September 2023

La idea de una historia de la literatura colombiana viene asentándose paulatinamente en nuestra comunidad académica. Si miramos retrospectivamente veremenos que ya hemos recorrido una buena parte del camino. En el año 2007 el Sistema de Información de la literatura colombiana -SILC_ (http://comunicaciones.udea.edu.co/silc) celebrará sus primeros 5 años de funcionamiento.
(Im) pertinencia del concepto de tradición literaria para una historia de la literatura colombiana
Authors: Laverde Ospina Alfredo
Published: September 2023

RESUMENEn la actualidad, los discursos hegemónicos sobre la nación y la nacionalidad ha pasado a ser reemplazados por una concepción plural empeñada en la apertura de espacios para la diversidad racial, cultural y socioeconómica inherente a países en los que ha irrumpido el capitalismo de forma desigual.Es así como este artículo se propone, frente al concepto de historia de la literatura, la noción de tradición como eje alrededor del cual es posible reconocer la existencia de diversas manifestaciones de la palabra en países como Colombia en los que la escritura estético-literaria culta ha funcionado a modo de categoría excluyente en la conformación del canon literario.ABSTRACTAt the present, the hegemonic discources about nation and nationality have been replaced by a plural conception determined in the opening of spaces for the racial, cultural and socioeconomic diversity, inherent to countries in which capitalism has been unequally interrupted. Taking that into account, this article aims, regarding the concept of History of Literature, to state the notion of tradition as central idea in which it is possible to recognize the existence of several manifestations of the word worked as an excluding category in the structure of the literary canon.
Historias literarias nacionales: una realidad política
Authors: Toro Diana Carolina
Published: September 2023

RESUMENEn este texto, resultado del estudio de las historias de la literatura colombiana de carácter nacional, se analizan las fuentes a la luz de los planteamientos teóricos referentes a la historia literaria, la identidad nacional y, especificamente, al proceso histórico-político de Colombia, con miras a desentrañar el aspecto político propio de estas historias literarias.ABSTRACTThis text is the result of a study of histories of Colombian national literatura. This study analyses the sources of this kind of literature by the light of theoretical statements regarding the literary history, national identity, and specially, the historic-political process of Colombia, in order to get the bottom of the political aspect inherent of these literary histories
Entre la sangre y el simulacro: últimas tendencias en la narrativa policial mexicana
Authors: Noguerol Jiménez Francisca
Published: September 2023

RESUMEN Descripción de una de las más importantes tendencias de la narrativa mexicana actual: el relato de detectives, en el que se reconoce con especial fuerza desde la década del setenta el neopolicial canonizado por Paco Ignacio Taibo II, dominante hasta bien entrados los años noventa y que aún hoy se muestra activo tanto en México D.F –donde se originó– como en las provincias –con especial incidencia en la frontera Norte, que ha conocido la eclosión de esta estética en los últimos uince años. Frente a esta corriente narrativa, deudora del hard boiled estadounidense, en la última década se ha producido la eclosión de la ficción antidetectivesca o, lo que es lo mismo, el antipolicial metafísico heredero de las creaciones borgesianas, con frecuentes tramas basadas en el mundo del libro en las que las nociones de verdad e identidad se muestran escurridizas. Asimismo, se ha producido una notable hibridación de los textos, sobresaliendo los argumentos cercanos al cyberpunk y teñidos de rasgos procedentes del cine, la televisión y el comic.ABSTRACT This document describes detective stories as one of the most important tendencies of the current Mexican narrative. The new crime fiction, which is considered a strong narrative since the beginning of the seventies, was canonized by Paco Taibo II. It remained a strong narrative until the late nineties and is active today in México F.D. -where it was originated–. It has strong incidence in the provinces, mainly at the Northern border where the manifestation of this aesthetics has been recognized during the last fifteen years. Opposed to this narrative tendency taken from the north American hard boiled is the anti crime fiction born out of Borges creations. Stories are often based in the literary world where the notions of truth and identity as well as hybridization of texts have been produced with outstanding proximities to the cyberpunk and have been tainted with features from the cinema, television and cartoons.
Del detective al fisgón: el policial costumbrista en Colombia
Authors: Hoyos Héctor
Published: September 2023

El presente artículo presenta los lineamientos generales para una teoría del “policial costumbrista” colombiano a partir de Perder es cuestión de método (1997) de Santiago Gamboa. Tras un estudio de la transformación de las convenciones del género negro y su fusión con elementos de un cuadro de costumbres, se propone un modelo para elucidar la relación entre el texto literario y el imaginario del crimen en Colombia. Así, se interpreta el motivo de la pérdida en tanto alegoría nacional y se lo compara con casos similares en América Latina. Finalmente, se analiza el papel de los medios de comunicación y del fútbol dentro de la obra y se sugieren líneas de investigación con respecto a otras narrativas contemporáneas. ABSTRACT: this paper presents the general guidelines of a theory about costumbrista detective fiction in Colombia based on Santiago Gamboa’s work Perder es cuestión de método (1997). It studies the ways in which the novel transforms the conventions of noir by articulating them with elements from a cuadro de costumbres. It claims that the cultural relevance of such a transformation lies in its contributions to a better understanding of the relationship between literary texts and the imaginary of crime in Colombia. It interprets the motif of loss in the work as a national allegory, and compares it with similar cases in Latin America. It analyzes the role of media and soccer in the novel, and suggests further lines of research in regard to other contemporary works.
Saide: Ensamble de una novela negra
Authors: González Vargas Sergio Arturo
Published: September 2023

RESUMEN El texto busca hacer evidente en la novela Saide de Octavio Escobar Giraldo una tendencia hacia el género negro dentro del campo de la literatura colombiana de los años noventa en el siglo XX. Para ello, se tiene en cuenta tres elementos: el contexto histórico como preocupación entre la denuncia social y la búsqueda del realismo; la relación entre ética-estética-moral que configura un imaginario de la sociedad colombiana; y por último, la literariedad y el juego con el lenguaje.ABSTRACT This paper evidences the black genre tendency in Octavio Escobar Giraldo’s novel within the Colombian literary field during the last decade of the Twentieth century. Hence, the following three elements are taken into account: the historical context as a concern between social report and the search of realism, the relation between ethicaesthetic- morality structuring the imagery of the Colombian society; and finally, literariness and playing with language.
Mito y ciencia en la representación discursiva de los inventores de globos aerostáticos y de los primeros aeronautas en textos de hablantes de español peninsular.
Authors: Matteis Lorena de
Published: September 2023

Resumen: Este trabajo presenta una primera aproximación a la representación discursiva de los inventores de globos aerostáticos y primeros aeronautas en un conjunto de textos de hablantes de español peninsular de fines del siglo XVIII y siglo XIX. Atendiendo a consideraciones de tipo léxico, se muestra que la imagen de ambos grupos se construye discursivamente en relación a la representación de otros tres grupos sociales: los poetas, los científicos y la sociedad, es decir, los espectadores testigos de las primeras ascensiones.Myth and science on discursive representation of air balon inventors and of first aeronauts in texts writen by peninsular spanish speakersAbstract: This paper presents a first approach to the discursive representation of air balloon inventors and of first aeronauts in texts written by peninsular Spanish speakers at the end of the 18th century and the beginning of the 19th century. Taking under consideration the vocabulary, the article shows how the image of both groups is constructed in relation to the representation of three other social groups: the poets, the scientists and the general society, that is to say, the witnesses of the first aerostatic ascensions.Mythe et science dans la representation discursive des inventeurs des montgolfieres et des premiers aeronautes dans des textes ecrits par des locuteurs espagnols de la peninsule iberiqueRésumé: Ce travail présente une première approche de la représentation discursive des inventeurs de montgolfières et des premiers aéronautes dans des textes écrits par des locuteurs espagnols de la péninsule ibérique de la fin du XVIIIe siècle et du XIXe siècle. Prenant en considération le lexique, nous montrons que l’image de ces deux groupes se construit discursivement en relation avec la représentation d’autres groupes sociaux : les poètes, les scientifiques et la société, autrement dit, les spectateurs témoins des premiers vols.
El caso de las historias de vida de personas en situación de calle: apuntes teóricos y metodológicos sobre el estudio del discurso desde una perspectiva crítica
Authors: Quiroz Beatriz , Samaniego José Luis
Published: September 2023

Resumen: El objetivo del presente artículo es abordar el problema de la falta de articulación entre la teoría social y la teoría lingüística en las investigaciones realizadas en el marco del Análisis crítico del discurso. A partir de la experiencia en el estudio del discurso de personas en situación de calle, proponemos avanzar hacia una perspectiva que considere seria y sistemáticamente la naturaleza dialógica del lenguaje, explorando herramientas teóricas y metodológicas que permitan abordar adecuadamente la complejidad del fenómeno lingüístico.Life stories of stret dwelers: Notes on the theory and methodology of the study of discourse from a critical perspectiveAbstract: The aim of this paper is to approach the theoretical and methodological problema of the lack of articulation between social theory and linguistic theory in research conducted within Critical Discourse Analysis (CDA). Drawing on our research experience in the study of the homeless’ discourse, we suggest moving forward an approach that seriously and systematically considers language in his dialogical nature, exploring theoretical, methodological and analytical tools that allow to study the linguistic phenomena in its full complexity.Le cas des histoires de vie de gens en situation de rue: notes théoriques et méthodologiques sur l’étude du discours à partir d’une perspective critiqueRésumé: L’objectif de cet article est d’aborder le problème du manque d’articulation entre la théorie sociale et la théorie linguistique dans les recherches réalisées dans le cadre de l’Analyse critique du discours. A partir de l’expérience dans l’étude du discours de gens en situation de rue, nous proposons de nous orienter vers une perspective qui considère de manière sérieuse et systématique la nature dialogique du langage, en explorant des outils théoriques et méthodologiques qui permettent d’aborder de manière adéquate la complexité du phénomène linguistique.
novela de crímenes en América Latina: Hacia una nueva caracterización del género.
Authors: Forero Quintero Gustavo
Published: September 2023

Este trabajo expone algunos resultados del proyecto de investigación “La anomia en la novela de crímenes del siglo XX en Colombia (1990-2005)” cuyo objetivo es caracterizar el género novela de crímenes en Colombia a partir del concepto general de la anomia social. Aunque el trabajo alude al caso de la literatura colombiana, gracias a la herramienta de la anomia se han podido determinar elementos que sirven para comprender esta clase de novela en el continente entero. La superación de principios del género tradicional propios de la modernidad ilustrada, la existencia de distintos grados de anomia en la novela y la especificidad del contexto histórico hacen de este género y de esta herramienta de análisis un campo privilegiado de estudios interdisciplinarios y de la literatura comparada.
ELENA SABE Y LOS ENIGMAS DE LA NOVELA POLICIACA ANTIDETECTIVESCA/METAFÍSICA
Authors: Flórez Mónica
Published: September 2023

El presente trabajo explora los ingredientes anti-detectivescos y metafísicospresentes en la novela de la escritora argentina Claudia Piñeiro, con el fin de establecer quedichos rasgos convierten esta obra en una novela policiaca posmoderna. Para llevar a caboeste análisis se tienen en cuenta principalmente las teorías expuestas por los críticos StefanoTani, Patricia Merivale y Susan Elizabeth Sweeney.
ANÁLISIS DE LOS CUMPLIDOS EN EL LIBRO INTERCHANGE THIRD EDITION
Authors: Lopera Medina Sergio
Published: September 2023

Este artículo reporta un análisis lingüístico de los cumplidos en el texto para enseñanza del inglés Interchange Third Edition. Se analiza la tipología de los cumplidos presentados en el texto de acuerdo a Manes & Wolfson (1981), y se verifica si el texto presenta alguna guía de uso de los cumplidos. Los resultados indican que el texto brinda una gran variedad de ejemplos de los cumplidos pero no brinda una guía explicita de uso.
Las estéticas rechazadas trasforman los espacios de legitimación: la reconciliación con el "gran público" de Manuel Puig
Authors: Vivas Lacour Carmen Victoria
Published: September 2023

RESUMEN

Este artículo estudia la obra del escritor Manuel Puig, a partir de la reconciliación que ésta emprende con los sujetos y modos de representación asociados a lo popular y a la cultura de masas.  Analizar sus novelas más reconocidas, La traición de Rita Hayworth (1968), Boquitas Pintadas (1969), The Buenos Aires Affair (1973) y El Beso de la Mujer Araña (1976) centrados en su revalorización del cine de Hollywood, del kitsch, del estereotipo y del melodrama permite ahondar en una narrativa que encontró sus parámetros de legitimidad en referencia a las estéticas rechazadas tradicionalmente por los espacios más autónomos del campo literario.

ABSTRACT

This article is a study of the work of Manuel Puig, beginning with the reconciliation that his work proposes with regard to the subjects and modes of representation associated witn pop culture. Analyzing his most famous novels -La traición de Rita Hayworth (1968), Boquitas pintadas (1969), The Buenos Aires Affair (1973) y El Beso de la Mujer Araña (1976)- with glance to his reevaluation of Hollywood cinema, kitsch, and melodrama allows one to penetrate a narrative that established its parameters of legitimacy in relation to aesthetics traditionally rejected by the most autonomous spaces in the field of literature.
Goethe y el romanticismo alemán
Authors: Arango Restrepo Sofía Stella
Published: September 2023

RESUMEN

El idealismo y el Romanticismo alemán toman la esencia del concepto de libertad en la Revolución Francesa, reflexión que los lleva a repensar el arte, el mito, la naturaleza, la Edad Media y la presencia del sueño en el acto creador del artista. Goethe, fuente de inspiración para estos artistas y pensadores, comparte algunos de los postulados, establece diferencias con otros y formula un nuevo concepto de símbolo.

ABSTRACT

German Idealism and German Romanticism utilize the essence of the concept of freedom from the French Revolution. This very reflection leads artists to rethink art, myth, nature, the Middle Ages and the presence of the dream in the artist's crative act. Goethe, a source of inspiration for these artists and thinkers, shares some of his postulates, differentiates them from others and formulates a new concept of symbol.
Impacto de la formación de maestros en competencias en el área de lenguaje
Authors: Varios Varios
Published: September 2023

RESUMEN

En este artículo se presentan resultados de la sistematización del proyecto: "Impacto de la Formación de Maestros en Competencias en el Área de Lenguaje".Su objetivo fue determinar la existencia y la naturaleza del impacto producido en las prácticas pedagógicas de los maestros de educación básica del área de lenguaje, en el departamento de Antioquia, como consecuencia de la formación recibida para mejorar las competencias en comprensión y producción textual en sus estudiantes.

ABSTRACT

This article presents the results of the systematization of the project: The formation of teachers on language Competences and its impact on the language area. The objective of the project was to determine the existence and nature of the impact produced by the pedagogical practices of elementary and secondary education teachers in the language area, in the state of Antioquia, as a consequence of the training they received to improved the textual comprehension and production competences of students.
Dynamic characterization of pressure sensors using the principle of mariotte’s bottle
Authors: González Betancourt Mauricio , Giraldo Juan S.
Published: September 2023

A methodology to evaluate the dynamic characteristics of pressure sensors used in channels or hydraulic models is presented. This is based on the analysis of the ramp and step signals in the time domain for defining the useful range in amplitude and frequency of the sensors. The signals are obtained from the opening and closing of valves present in an aperiodic pressure generator designed with the principle of the Mariotte ́s bottle.
An e-voting system for Android Smartphones
Authors: López García Lourdes , López Chau Asdrúbal , Silva Pérez Javier , León Chávez Miguel
Published: September 2023

Electoral processes using electronic devices allow voters to cast electronically. Devices such as personal computers, Direct Record Machines (DRE) voting machines, and smartcards, among others, in conjunction with private nets or the Internet have been the main tools to implement electronic voting systems (e-voting). Some years ago, mobile devices had not been considered due to their storage restrictions and low computational power; however, nowadays the technology in these devices has advanced and it is possible to implement complicated applications that offer security services such as confidentiality and authentication. In this paper, a reliable and efficient e-voting system for Android Smartphone is implemented. The e-voting proposed herein is composed of three entities: the authentication server (AS), the voting server (VS) and the voter (V) which runs on an Android Smartphone. Two short messages, between V and AS, are necessary to generate an electronic ballot. In order to cast a vote, one more message containing the ballot is sent from V to VS. Bilinear pairing functions are used to verify the signatures contained in the electronic ballot. Each ballot has short lengths, implying improvements in transmission times. Additionally, considering that the most costly operations such as bilinear pairing are not performed in V, the results obtained in tests show that the e-voting system is efficient.
Implementing Fast-Haar Wavelet transform on original Ikonos images to perform image fusion: qualitative assessment
Authors: Medina Javier , Pinilla Carlos , Joyanes Luis
Published: September 2023

This article presents the Fast Haar Wavelet Transform (FHWT) algorithm applied to satellite-images fusion. FHWT is applied to both a multispectral image and a panchromatic Ikonos image using the digital image processing toolbox and wavelet toolbox provided by MatLab®. The results of the fusion are analyzed and evaluated quantitatively. Regarding the quantitative results of the fusion, first the mathematical-statistical correlation algorithm is used to analyze the spectral and spatial gain of the merged images. Next, the kappa coefficient is analyzed on three samples taken from the merged images, which are binarized in order to identify their spatial accuracy. It is shown that FHWT outperforms other predefined wavelets (namely rbio6.8, bior6.8, db7, dmey and haar) when merging the images. Moreover, merged images maintain the same spectral output as the original image, and also exhibit significant spatial resolution gain.
Analysis of binary Bitumen – Polymer mixtures
Authors: Ossa E. Alexander , Múnera Juan Camilo
Published: September 2023

Bitumen  is  a  black  material  composed  of  a  mixture  of  various  natural hydrocarbons. Bitumen has been commonly used in road paving and roofing applications thanks to its hydrophobic and adhesives properties. The production of  Polymer  Modified  Bitumens  (PMB)  has  allowed  the  development  of materials with better performance in comparison to pure bitumen. This work presents  the  effect  of  addition  of  polymer  to  a  Colombian  bitumen  from  its  morphological, rheological and thermal properties, in order to identify different modification levels. The polymers used as modifiers were polyethylene wax (CPE), styrene butadiene styrene (SBS) and crumb rubber (CR). They were added to bitumen in proportions between 3 to 15% w / w. Both neat bitumen and PMB were characterized by penetration and softening point. Thermal and rheological characteristics were analyzed by differential scanning calorimetry (DSC) and rotational rheometry, respectively. Changes in the morphology were measured by atomic force microscopy (AFM). The experimental results showed that the CPE mixtures had the most pronounced effect on the conventional properties,  achieving  a  75%  reduction  in  penetration  and  a  250%  increase  in  the softening point compared to neat bitumen. The results obtained by DSC allowed identifying three glass transition temperatures (Tg) in neat bitumen. Mixtures with SBS altered Tg, showing changes on the thermal characteristics of neat bitumen. Mixtures with CPE and SBS showed the highest values of G*.  The  results  obtained  by  AFM  help  identifying three different phases in neat bitumen and its variation with the addition of different polymer modifiers, showing considerable structural changes that led to changes in the material properties at the macroscopic level.
Mechanical behavior of polyethylene terephthalate (PET) and geotechnical applications
Authors: Botero Jaramillo Eduardo , Muñoz Liliana , Ossa Alexandra , Romo Miguel P.
Published: September 2023

During  the  last  years  solid  waste  disposal  has  increasing  significantly, causing health and environmental problems. In order to study an alternative to mitigate these problems, the re-use of polyethylene- terephthalate bottles as a replacement of conventional lightweight materials used on the leveling or filling of soils is investigated.For  this  purpose,  a  mechanical  characterization  of  the  PET  most  popular  bottles  on  the  market  was  carried  out.  Laboratory  test  results  indicate  that  PET bottles exhibit compression resistances, which suggest that this material can be used on the construction of lightweight structures.
Vehicular traffic monitoring in V2I systems using a wireless sensor network
Authors: Rivero Ángeles Mario E. , Ramírez Reyna Mario A. , Villordo Jiménez Iclia
Published: September 2023

In the near future the majority of the automotive systems will strongly rely on the exchange of information among vehicles or infrastructure to improve the driving conditions, increment security or simply have access to internet and entertainment services. This is the reason why the research and development of  Vehicular  Ad-Hoc  Networks  is  very  important  nowadays.  In  this  paper,  a  design  and  analysis  of  a  Vehicular  Ad-Hoc  Network  (VANET)  assisted  by an event driven Wireless Sensor Network (WSN) for traffic monitoring in  a  highway  is  presented.  The  aforementioned  WSN  is  based  on  the  well-known LEACH protocol. However, a key modification is proposed in order to increase the network lifetime for applications on VANETs. The basic idea is to minimize the overlapping areas among neighboring clusters in order to reduce redundancy and to have a better coverage of the supervised highway with  a  lower  transmission  cost.  Additionally,  two  different  methods  for  the event reporting are proposed. In the first one, the traffic information is transmitted  exclusively  among  the  WSN  nodes,  while  the  second  method  makes use of the vehicles in order to relay the information to the sink. The proposed methods are analyzed in terms of energy consumption and average report delay.
Service-life prediction of reinforced concrete structures through a chloride diffusion model
Authors: Ossorio Anile , Lorenzo Raydel
Published: September 2023

Most  of  the  pathologies  presented  in  the  concrete  structures  are  because  of  the  corrosion  process.  Herein,  a  methodology  that  allows  doing  a  quantitative estimation of the service life of concrete structures is presented. This  methodology  uses  chloride  diffusion  models.  The  application  of  the  methodology to a study case is presented.  In this study case were considered all the prescriptions of the durability standards. The results of the estimations 2014of  the  service  life  of  the  structure  are  compared  with  the  recommendations  commonly used, showing the necessity of service life studies.
Two-electron energy levels in coupled nano-rings: the hydrostatic pressure and magnetic field effects
Authors: Rincón-Fulla Marlon , Marín-Cadavid Jairo Humberto , Suaza Yoder Alberto
Published: September 2023

The  energy  spectrum  of  two  electrons  spatially  separated  in  two  vertically  coupled  quantum  rings  under  hydrostatic  pressure  and  magnetic  field  is calculated.  In  order  to  study  the  two-electron  properties,  the  adiabatic  approximation  is  used  by  considering  quantum  rings  with  square  cross-sections. The changes of the energy level-ordering and the crossover among the curves as a function of radii and ring-ring separation as well as the hydrostatic pressure and magnetic field are discussed. The effects related to the geometry of the rings as well as the external fields on the crystal Wigner formation are analyzed. Additionally, it is checked that the present results are in good agreement with those previously obtained for the limit cases corresponding to zero ring-ring separation and rings of equal center line radius.
Freeway Speed Limits under Inclement Weather Conditions
Authors: Wang Yonggang , Li Ming , Feng Lei
Published: September 2023

Over the past decade, over speeding has been identified to be the most dominant factor contributing to the occurrence of severe crashes and injuries on freeways, and thus speed limit performs the most popular countermeasure. However, few studies have focused on the problem of freeway speed limits in bad weather due to reduction of visibility and pavement friction. Therefore, the primary purpose of this research is to develop a prototype of speed limits recommendations for basic freeway segments under the inclement weather conditions. If the leading vehicle makes a sudden stop, the travelling distance of the following vehicle is divided into four phases. Assuming the visibility is no less than the safe following distance between consecutive vehicles, consequently, a parabolic equation is constructed to describe the relation between the vehicle’s maximum safe speed, pavement conditions, segment slope and visibility, and then maximum safe speed is rounded down to the nearest multiple of 5 as the proposed speed limit under the fogy, rainy or snowy conditions.
On the implementation of adaptive multiresolution spectral WENO scheme for the multiclass Lighthill-Whitham-Richards traffic model
Authors: Vega-Fuentes Carlos Arturo , Bolaño-Benítez Edwin
Published: September 2023

In this paper, the implementation of a spectral or characteristic-based fifth order  WENO  (Weighted  Essentially  Non-Oscillatory)  scheme  is  described  in  detail  along  with  an  adaptive  multiresolution  technique  for  efficiently computing  the  numerical  solution  of  a  multi-class  traffic  flow  model described mathematically by a nonlinear system of conservation laws. In [1] the  authors  considered  the  same  problem  but  in  a  component-wise  manner.    More recently, [2] conducted numerical experiments by using characteristic-based schemes combined with AMR (Adaptive Mesh Refinement) strategy.
Damage accumulation and redistribution of stresses in fiber reinforced material
Authors: Tamayo Meza Pedro , Ovchinsky Anatoli S. , Sandoval-Pineda Juan M. , Flores-Herrera Luis A. , Álvarez Zapata Alejandro
Published: September 2023

During the analysis of fracture processes of composite materials we deal with the interaction of different factors that have a very particular character. There exist a substantial variation between the breaking resistance of the fibers, the resistance of the matrix and the adhesion resistance of the matrix, as well as the arrangement of the reinforcement which is erratic and random. The unpredictable interaction between these factors during the fracture of the compound is not fully described by using probabilistic methods. The development of computational methods opens an enormous amount of possibilities to simulate the influence of these factors during the fracture process of the composite. The use of computational methods is complex because the algorithms must synthesize both physical and mechanical problems of materials considering at the same time the real structure of the materials. Because of that, the use of fundamental criteria is suitable in order to create the simulation of the delamination processes in cracked fibers and the development of cracks in the matrix.
Application of CFD to the design of the runner of a propeller turbine for small hydroelectric power plants
Authors: Chica Arrieta Edwin Lenin , Agudelo Flórez Sergio , Sierra Natalia Isabel
Published: September 2023

A procedure for the design of the runner of a pico hydraulic propeller turbine according to the specific conditions of water potential of the site of operation is presented based on a theoretical and technical analysis. For this purpose the main characteristics of the runner are determined and data such as the suction head, the rated flow, and the occurring forces are established during the design. Modern engineering tools such as Computational Fluid Dynamics (CFD) are utilized for predicting the flow and Computer Aided Engineering software (CAE) for the design verification.
The Runner of the Propeller Turbines (RPT) designed can be a viable option for electricity generation innot interconnected zones (NIZ) of the national interconnected electric system in developing countries and can be manufacture locally.
Influence of meteorology and source variation on airborne PM10 levels in a high relief tropical Andean city
Authors: González-Duque Carlos Mario , Cortés-Araujo Johana , Aristizábal-Zuluaga Beatriz Helena
Published: September 2023

Atmospheric particulate matter (PM10) was evaluated with meteorology, mixing height and source variation over a two year period (January 2010 to December 2012) in the densely populated tropical Andean city of Manizales. The highest levels of PM10 were observed in areas with the highest vehicular density with values in a range of 18 - 69 µg m-3. PM10 concentrations were influenced by meteorological parameters, positively associated with temperature (r = 0.40), and negatively associated with relative humidity (r = -0.47) and precipitation (r = -0.38). The effects of scavenging by precipitation were observed by analyzing PM10 concentrations for dry periods versus wet periods. The high sulfate PM10 ionic contents observed throughout the city were consistent with the influence of public transport and automobiles, which use diesel and gasoline as principal fuels, and are recognized as the main source of particulate matter emissions. Increasing midday mixing height over downtown of the city (from 900 m to 1600 m) effectively diluted peak hour emission from vehicular traffic, as observed over a 24 hour sampling period with 30 second intervals. These preliminary data suggest factors important to modeling PM10 in high rainfall and densely populated tropical mountain ecosystems.
delay of consequences and perceived risk: an analysis from the workers’ view point
Authors: Rodríguez-Garzón Ignacio , Delgado-Padial Antonio , Martinez-Fiestas Myriam , Lucas-Ruiz Valeriano
Published: September 2023

This paper addresses the question of how construction workers perceive occupational risks. It is a question that has not been addressed in scientific research. Specifically, we answer the following research questions: what is the perception of risk of construction workers?; what aspects of risk significantly influence the formation of the overall perception of risk?; are there sociodemographic variables that help to understand the perception of risk of construction workers? and if this were the case, then what are these variables and how do they influence them? Ultimately, it examines the profile of perceived risk, its relation to the delay of consequences and the influence of socio-demographic variables.
Respondents filled out a questionnaire in the presence of the survey-taker. The questionnaire was based on the psychometric paradigm, and was comprised of: (a) nine questions, each exploring a perceived risk attribute or dimension rated on a Likert 7-point scale, (b) a question on global risk perception, and (c) categorical questions about socio-demographic issues. The survey was conducted in the city of Granada (Spain).
A profile of the construction workers’ perceived risk was obtained. Answers to each attribute were above the neutral line (scores above four). The profile shows the risk dimension with the highest score was the delayed consequences of exposure to risk conditions, a dimension that can be related to ergonomics and occupational hygiene. This is a new outcome since traditionally this dimension was given a lower score in the worker’s perception. A simple linear regression showed global risk may be explained in terms of the delayed consequences dimension (R2=0.29). Finally, a variance analysis (ANOVA) and several t-tests explored the relationship between this dimension and the sample’s socio-demographic variables.
To conclude, the delay of consequences is the risk dimension workers perceived as the most critical in their daily chores. In addition, this risk dimension is decisive in creating a high global risk perception. Parenthood, a higher worker category and training are the only socio-demographic variables having an impact on this dimension of perceived risk. Hence, there is a direct relationship between these two variables.
Preliminary
Authors: García Aristizábal Edwin Fabián , Vega posada Carlos Alberto
Published: September 2023

We are pleased to announce that in December 2013, Revista Facultad de Ingeniería Journal was re-indexed by COLCIENCIAS in Category A1, in the National Bibliographic Index – Publindex, for the years 2013 and 2014. Our Journal has maintained this classification for the last 7 years, which validates the quality of the scientific papers published in it, and the national and international visibility and reputation that the Journal has been gained. This classification recognizes our Journal, once again, as one of the most important Journals in Latin-American in the area of Engineering and Technology.
Preliminary
Authors: Betancur V. Teresita
Published: September 2023

Who are the authors and who are the readers of specialized magazines? When the purposes of a serial publication on topics in technical areas or those called by some “hard sciences” are conceived, the idea is immediately captured that it is about disseminating new results, new knowledge, new methodologies, innovation. .
Preliminary
Authors: Betancur V. Teresita
Published: September 2023

The year 2013 ends, and the Faculty of Engineering Magazine publishes its 69th edition, once again fulfilling its purposes: i) during the last few years we have managed to promote and stimulate the publication of research results in engineering sciences, technology and related disciplines ; ii) from different latitudes in Latin America, North America and Europe the authors contribute their manuscripts; iii) there is a competition of referees of the highest level for the evaluation of the documents submitted for consideration by the editorial committee; iv) the periodicity with which we have committed is fully complied with.
New computer aided device for real time analysis of speech of people with Parkinson’s disease
Authors: Vásquez Correa Juan Camilo , Orozco Arroyave Juan Rafael , Arias-Londoño Julián David , Vargas Bonilla Jesús Francisco , Nöth Elmar
Published: September 2023

Parkinson’s  disease  (PD)  is  a  neurodegenerative  disorder  that  affects  the  coordination of muscles and limbs, including those responsible of the speech production. The lack of control of the limbs and muscles involved in the speech production  process  can  generate  intelligibility  problems  and  this  situation  has  a  negative  impact  in  the  social  interaction  of  the  patients.  It  is  already  demonstrated that constant speech therapy can improve the communication abilities of the patients; however, the measurement of the recovery progress is done subjectively by speech therapists and neurologists. Due to this, it is required the development of flexible tools able to asses and guide the speech therapy  of  the  patients.  In  this  paper  the  design  and  deployment  of  a  new  device  for  the  real  time  assessment  of  speech  signals  of  people  with  PD  is  presented. The processes of design and deployment include the development on three platforms: first, a graphic user interface is developed on Matlab, second the first prototype is implemented on a digital signal processor (DSP) and third, the final device is developed on a mini-computer. The device is equipped  with  an  audio  codec,  storage  capacity  and  the  processing  unit.  Besides, the system is complemented with a monitor to display the processed information on real time and with a keyboard enabling the interaction of the end-user with the device.
Different acoustics and nonlinear dynamics measures which have been used in the state of the art for the assessment of speech of people with PD are implemented on the three mentioned platforms. In accordance with the state of the art, the designed platforms show an increment in the variation of the fundamental period of speech (commonly called pitch) of people with PD. Additionally, the decrease of the vocal space area is validated for the case of patients with PD. These results indicate that the designed device is useful to perform the assessment and monitoring of the speech therapy of people with PD.
Psychometric properties of the Multidimensional Health Locus of Control Scale: Ukrainian sample
Authors:   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine, Danyliuk Ivan , Kurapov Anton ,   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine, Malysheva Karine ,   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine, Yahiiaiev Illia ,   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine, Loshenko Oleksandra ,   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine, Lytvyn Serhiy ,   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
Published: September 2023

B a c k g r o u n d . Health control and management are important processes, the relevance of which has increased after the COVID-19 pandemic. Health control is equally important for the population of Ukraine today. Various assessment methodologies are used to measure health control, and the MHLC is one of the most commonly used, and also showed high reliability in several countries worldwide. Considering the importance of the issue and constant threat to the health of population, the necessity of having this scale available in Ukrainian is clear. Correspondingly, the present study aimed to adapt the MHLC (Multidimensional Health Locus of Control) scale to the Ukrainian context and to test the psychometric properties of the scale for its suitability for use among the Ukrainian-speaking population. M e t h o d s . The properties of the MHLC scale were evaluated on a sample of 392 respondents from Ukraine. The psychometric properties were assessed using the following statistical tests: reliability and internal consistency (Cronbach's alpha), factor analysis (exploratory and confirmatory), and correlation analysis. R e s u l t s . Cronbach's alpha for the MHLC scale was 0,72. EFA analysis revealed the presence of a three-factor model structure. The model's goodness-of-fit indicators are as follows: χ2 = 389, p < 0,001; CFI = 0,86; TLI = 0,84), SRMR = 0,06, AIC = 22982, BIC = 23209. The main factors of the model are: influential others, internal, and randomness. The correlation analysis revealed a strong relationship between the MHLC scale items and the 5C scale items, which confirms convergent and discriminant validity. C o n c l u s i o n s . The Ukrainian version of the MHLC scale has positive psychometric characteristics and can be used in studies focused on the Ukrainian-speaking context and sample. Validation procedure showed the ability of Ukrainian scale to match the initial five factors suggested by the authors of the scale.
Continuous Illumination at Increasing Light Intensities and the Effect on the Growth and Survival of Snubnose Pompano Trachinotus Blochii in the Early Stage
Authors: Alejos Marlon S. , Pedroso Fiona L. , Corre Valeriano L. , Abejo III Maximino R. , Garciano Martha Joyce G. , Tito Oliver D.
Published: September 2023

The study investigated the influence of continuous illumination at increasing light intensities on feeding, growth, and survival of early-stage snubnose pompano larvae from 1 to 10-day post-hatching ( Fish larvae were exposed to 5 treatments with 3 replicates [T1 – natural indoor light; 12 hours light (hL): 12 hours dark (hD), T2 – 300-500 lux (lx), T3 – 300-1000 lx, T4 – lx, T5 – 300-3000 lx]. Newly hatched larvae were stocked at 15 ind. /L density and fed with enriched rotifers (Brachionus plicatilis; 50-250 µm) at 30 ind. /ml starting from 2 DPH. The number of rotifers in the digestive organ, feeding incidence, and total length of larvae were examined at 3-hour intervals from 0400 hour (H) to 2200H on 3 DPH, at 6-hour intervals from 4 to 5 DPH, and once on 8 DPH at 1000H. The fish final growth and survival were determined after the study. Results justified that snubnose pompano is a visual feeder and exhibits diel rhythm within 24 hours of light, while larvae at natural photoperiod usually undergo diurnal rhythms. However, changing light intensity conditions from low to high levels altered the feeding behavior of the fish larvae. Better and consistent feeding and survival of larvae were obtained at moderate continuous illumination at increasing light intensities (300-500 lx), but more remarkable fish growth can be obtained at higher light treatments (300-1000 lx, 300-2000 lx, 300-3000 lx). Adverse effects of higher light intensities on larvae survival were observed after 5 DPH.
Legal Foundations of Digitalization of Citizens’ Control over the Activities of Public Authorities
Authors: Nigmetzyanov A. A.
Published: September 2023

The paper discusses the use of digital technologies in the relationships between the state and an individual. One of the directions of such relationships is the control of the population over the work of government bodies providing services. Control capabilities are significantly increased with the use of digital technologies. Their introduction into the practice of public authorities and use to expand communication with the public increase the objectivity of assessing the quality of services provided by governmental authorities. The relevance of the topic is determined by two main factors. Firstly, digitalization is an invariable stage of human development, including public authorities. Secondly, digitalization expands the possibilities of monitoring the activities of public authorities, minimizes the risks of corruption-causing factors, and increases the transparency of public administration. The study of the issue of digitalization was carried out both from the point of view of approaches to the formation of the concept, and from the point of view of the practical implementation of the phenomenon in the context of the relationship between the state and the population. The method of system analysis made it possible to identify the main theoretical provisions on digitalization in general. The formal legal method made it possible to adapt various approaches of researchers to the concept of digitalization in a broad sense and to the issues of digitalization of public authorities. Consideration of the regulatory framework for the consolidation of digital technologies gives grounds to come to the conclusion about the wide coverage of public relations by digital communication, which allows the use of various forms and methods of public control over the work of public authorities. The main obstacle in the development of communication in the digital sphere is the insufficient preparation of aging groups of the population for the use of modern information resources.