bluuebunny/crossref_metadata_2025 huggingface dataset:
The Effect of Mechanical Activation and Lignin Impurities on the Hydrolysis-Dehydration of Cellulose in the Presence of Sibunit-4 Solid Acidic Carbon Catalysts
Authors: Gromov Nikolay V. , Denisova Marina N. , Medvedeva Tatiana B. , Yatsenko Dmitriy A. , Taran Oxana P.
Published: November 2019

In the presence of acidic catalysts based on the Sibunit-4 material the effects of mechanical activation and a lignin impurities on both the reactivity of cellulose and yields of products (monosaccharides and furfurals) being achieved during the hydrolysis of the polysaccharide isolated by hydrotropic cooking of miscanthus, wheat straw, and fruit shells of oats were studied. Activation was shown to significantly increase the reactivity of all substrates and the yields of the target products. Impurities of lignin led to decreasing product yields
Magnetic Composite Sorbents for Trapping Heavy Metals from Liquid Waste and Their Immobilization in a Mineral-Like Matrix
Authors: Chernykh Yana Yu. , Vereshchagina Tatiana A. , Mazurova Elena V. , Parfenov Vladimir A. , Solovyev Leonid A. , Vereshchagin Sergey N. , Sharonova Olga M.
Published: November 2019

Magnetic sorbents were prepared by addition of ferrospheres to zirconia-silica gel followed by thermal treatment at 500 °C. The ferrosphere narrow fraction E -0.063+0.050 mm from fly ash resulted from combustion of Ekibastuz coal was used as a magnetic component. The surface of magnetic composites was additionally functionalized by grafting of – POONa and – NH2 groups. Under equilibrium conditions sorption capacities of the sorbents with respect to Се3+ used as a U4+/Th4+ simulator and Pb2+ were measured by means of determination of sorption isotherms which were fitted by the Langmuir model. It was established that extraction of Се3+ and Pb2+ from aqueous solutions is characterized by distribution coefficients of 104–106 ml/g. Temperature conditions for solid-phase crystallization of the sorbents resulting in polyphase systems with the content of zircon phase of 50 wt. % were found
Editorial
Authors: Gómez Botero Maryory Astrid , Isaza Ramírez Sebastián
Published: November 2019

The world's population increases every year and resources are limited, consequently the humanity faces the need to reinvent the way of living. As population grows, it is expected that in the coming years, the majority of people will live in urban areas. Thus urgent need to have cities where the well-being of people and the sustainability of the environment can be guaranteed [1]. In the last decade, the integration of sensor technologies, mobile internet, and information technology, has allowed the development of countless systems seeking to achieve the aforementioned objectives for the cities of the future. A Smart City can be defined as one that is able to take advantage of its own data, produced during its daily operation, in order to generate new information that allows it to improve its management and be more sustainable, more competitive, and offer better quality of life, thanks to participation and collaboration of all agents involved [2].
Generosos y empáticos o ¿pragmáticos y utilitaristas?: los argumentos del adulto mayor chileno frente a un dilema social
Authors: Santibáñez Cristián
Published: November 2019

En este trabajo se discuten algunos resultados de una investigación sobre la facultad argumentativa en adultos mayores (sobre 65 años de edad) de tres regiones de Chile, particularmente las respuestas escritas a un dilema social. Los resultados indican que aquellos adultos mayores que optan por empatizar con el protagonista del dilema social son en su mayoría mujeres, mayores de 70 años de edad y con un nivel educativo más alto. Sus argumentos muestran mayor densidad en términos de la cantidad y pertinencia de razones para apoyar el punto de vista.
SOLAMENTE PORQUE UNO HABLA «GOPPIAO» LO TRATAN DE CORRONCHO: CREENCIAS DE LOS MONTERIANOS ACERCA DEL ESPAÑOL HABLADO EN MONTERÍA
Authors: Salazar Caro Aura Rosa
Published: November 2019

En este artículo se presenta el análisis de las concepciones que tienen losmonterianos acerca del español hablado en Montería y de sus creencias acercade cómo los reconocen los otros. El estudio se fundamenta en las implicacionesde la palabra corroncho en la configuración identitaria del monteriano a partir desu habla propia y de sus representaciones sociales acerca de cómo los otros lodefinen o reconocen. En la primera parte, se presenta una revisión bibliográficadel concepto de corroncho; en la segunda, se expone la metodología deinvestigación, la cual es de enfoque mixto y de método directo, basada a su vezen la perspectiva mentalista para la identificación de las actitudes lingüísticas. Laselección de los hablantes y la recogida de la muestra se fundamentan en elProyecto PRESEEA.; luego, en la tercera parte, se muestran algunas creenciasde los monterianos acerca del español hablado en Montería. Finalmente, en laúltima parte, se plantean las conclusiones que surgieron a partir de loshallazgos.
EL TRATAMIENTO EDITORIAL DE LOS PENSAMIENTOS DE MANUEL QUINTÍN LAME CHANTRE: NUEVAS PERSPECTIVAS
Authors: Benavides Martínez Christian
Published: November 2019

El presente artículo obedece a dos ocupaciones académicas complementarias: elejercicio filológico, amparado en el cotejo de las diversas ediciones del documentoestudiado, así como la búsqueda y el análisis de fuentes históricas que permitan laelucidación de un contexto socio-político en el que se entienda a Lame Chantre.Dicho esto, el artículo tiene la intención de afirmar la necesidad de un tratamientoeditorial de Los pensamientos que logre decolonizar la mirada sobre Lame Chantre yrescatar la voluntad del autor.
Editorial
Authors: Aguirre-Ramírez Néstor Jaime , Gómez Botero Maryory Astrid , Orozco-Arroyave Juan Rafael , Osorio Juan Pablo , Villegas-Ramírez Juan Guillermo
Published: November 2019

In 2018, the School of Engineering of Universidad de Antioquia (UdeA) celebrated its 75th anniversary. Within this commemoration, the School organized ExpoIngenieria 2018, a broad forum for the interchange of knowledge between Academia, Industry, and the State.  Having “Development and sustainability” as a leitmotif, this event included several parallel activities, namely: an international congress with 3307+ attendants, the business and innovation roundtable Tecnnova 2018 with 2100+ business meetings and the fifth Workshop on Engineering Applications of Computer Science with 130+ attendants and 91 contributed papers, among others.Remarkably, the main Engineering fair (ExpoIngenieria 2018) reached a broad public of more than 28000 attendants, ranging from high school students to researchers and industrial practitioners. The Expo was the opportunity to join together more than 42 research groups from academia and industry. The goal of the Expo was to showcase the contributions generated in the Engineering field by the UdeA School of Engineering as well as other partner universities in a broad range of traditional, new and emerging domains such as: Energy and environment; Materials, chemistry and bioengineering; Infrastructure, mobility and logistics; and, Telecommunication, information technologies and computer science.As part of this celebration, we edited this special issue of Redin - Revista Facultad de Ingeniería.  The call was open and received seven submissions from academics and practitioners. After a rigorous review process, we proudly present four papers that were accepted and are published in this issue of Redin. These four papers include one in the renewable energy field (Edwin Chica, Fredys Romero Menco, Ainhoa Rubio Celemnte. “Design of a wave energy converter system for the Colombian Pacific Ocean) and three in alternative (natural) materials, its processing and applications (R. Prakash, R. Thenmozhi, Sudharshan N. Raman, C. Subramanian. “Mechanical behavior of polypropylene fibre reinforced concrete containing waste coconut shell as coarse aggregates and fly ash as partial cement replacement; Darío Alfonso Páez Soto, Luis Jorge Herrera Fernández, Oscar Esneider Acosta Agudelo, Marcelo Herrera Martínez. “Design and construction of an acoustic conditioning panel made from typical Colombian fibres”; Estefanía Echeverri Correa, David Orlando Grajales Lopera, Santiago Gutiérrez Restrepo, Claudia Patricia Ossa Orozco. “Effective sericin-fibroin separation from Bombyx mori silkworms fibers and low-cost salt removal from fibroin solution”).
Programa “Semilleros en aula” en el desarrollo de destrezas investigativas de los estudiantes de Bibliotecología de la Universidad Nacional Mayor de San Marcos
Authors: Alfaro-Mendives Karen Lizeth , Estrada-Cuzcano Alonso
Published: November 2019

Actualmente, la formación de destrezas investigativas es un tema de mucho interés para la docencia en la educación superior, pues permite al estudiante universitario desarrollar todas las capacidades para generar conocimiento y dar solución a problemas de tipo práctico identificados en las diferentes disciplinas, desde un punto de vista formativo. Lamentablemente, muchos estudiantes llegan a la educación superior con destrezas investigativas poco desarrolladas, con alto índice de plagio, pocos hábitos de lectura, entre otros; en particular, los estudiantes de Bibliotecología se caracterizan por involucrarse en la actividad laboral de manera muy temprana, por lo que sus investigaciones se orientan a la solución de problemas, siendo sus investigaciones básicamente descriptivas y de corte transversal y esto se debe, entre otras cosas, a la falta de estrategias de enseñanza innovadoras que les permitan desarrollar estas habilidades. La presente investigación fue de enfoque cuantitativo, de diseño experimental en su modalidad de preexperimental, se trabajó con 32 estudiantes. Se pudo concluir que la aplicación del programa “Semilleros en aula” tuvo un efecto significativo en el desarrollo de las destrezas investigativas de los estudiantes de la carrera de Bibliotecología de la Universidad Nacional Mayor de San Marcos, existiendo diferencias notables en el pretest (31,29) y postest (78,28), aceptándose la hipótesis planteadas.
Surface Morphology of Spermatheca Structure In Some Terellia Rob-Des (Diptera: Tephritidae) Species: A Scanning Electron Microscope Study
Authors: KÜTÜK Murat , DOĞAN Esra
Published: November 2019

Spermatheca structures of 6
species [Terellia fuscicornis (Loew,
1844), T. longicauda (Meigen, 1838), T. luteola (Wiedemann, 1830), T. nigripalpis Hendel, 1927, T. serratulae (Linneaus, 1758) and T. virens (Loew, 1846)] belonging to
genus Terellia Robineau - Desvoidy
(Diptera: Tephritidae) were photographed with scanning electron microscopy
(SEM).  Obtained figures were examined
and ultrastructure of the spermatheca for each species were described and
differences between species were discussed. Also SEM micrographs of each
species were presented.
Şanlıurfa Yöresinde Doğal Yayılış Gösteren Arum rupicola Boiss. var. rupicola ve Arum dioscoridis Sm. Taksonlarının Anatomik ve Morfolojik Yönden İncelenmesi
Authors: ÇEÇEN Cahit , AKAN Hasan , BALOS Mehmet Maruf
Published: November 2019

Bu çalışmada, Şanlıurfa'da doğal yayılış gösteren
Araceae familyası Arum L. cinsine ait
Arum rupicola Boiss. var. rupicola ve Arum dioscoridis Sm. taksonlarının morfolojik ve anatomik
özellikleri incelenmiştir. Toplanan türler herbaryum standartlarına uygun
olarak kurutulmuş ve morfolojik ölçümler yapılmıştır. Flora of Turkey ile
yapılan karşılaştırmada yumru, meyve ve apendiks bakımından farklılıklar
görülürken, Resimli Türkiye Florası ile karşılaştırmada ise meyve bakımından
farklılıklar görülmüştür. Anatomik çalışmalarda parafin yöntemi kesitlerinin
yanında el kesitleri de alınmıştır. Ekzoderma tabakası Arum dioscoridis'te 2-3 sıralı, Arum
rupicola'da ise 3-4 sıralıdır. Arum
dioscoridis'te kök korteksi 9-11 sıralı, Arum rupicola'da ise 8-10 sıralı parankimatik hücrelerden
oluşmuştur. Her iki türde endodermisin korteks tarafına bakan çeperleri
süberinleşmiştir. Her iki taksonda iletim demetleri radyal tiptir. Ksilem
poliark olup Arum dioscoridis'te 6-7
kollu, Arum rupicola'da 7-8 kolludur.
Kökte iletim demetleri, gövdede köşe kollenkimasının bulunması, yaprağın
mezofil yapısı ve rafit kristallerin bulunması bu türler için ayırt edici
anatomik özellikler olarak tespit edilmiştir.
Alfabetismo jurídico en las facultades de derecho en Colombia: ¿Fundamental en la democracia y el orden social?
Authors: CARREÑO DUEÑAS DALIA , MORENO DURÁN ÁLVARO HERNÁN , PACHECO BAQUERO JANETH MILENA
Published: November 2019

El presente artículo de reflexión se deriva de la investigación “Competencias ciudadanas y participación comunitaria” realizada en Fontibón localidad de Bogotá por investigadores de la facultad de derecho la universidad Santo Tomás.

El artículo tiene como objetivo hacer una reflexión y una propuesta que contribuya a las debilidades de la democracia y el estado de derecho de algunas las comunidades. La disertación parte de la idea central del escrito que plantea que el desorden del Estado es debido en parte a la desobediencia de las normas jurídicas de los ciudadanos que posiblemente tenga en una de sus fuentes la ignorancia de las mismas normas y el desconocimiento de principios tanto políticos como de sus derechos y deberes ciudadanos, que por la misma situación no han interiorizado estas reglas del juego lo que se traduce en carencia de conductas positivas al respecto.

Frente a la problemática se expone la estrategia de un alfabetismo jurídico apoyado por la investigación acción participativa entre las facultades de derecho y las comunidades en Colombia dentro del marco constitucional vigente y el espíritu humanístico de la academia.
El cadáver humano y su incidencia jurídica
Authors: ORTEGA RUIZ LUIS GERMÁN , DUCUARA MOLINA SERGIO ARTURO
Published: November 2019

El análisis del cadáver humano se aborda desde un contexto jurídico para determinar de manera descriptiva su incidencia en el orden constitucional. Para dicho efecto se realiza el estudio de fuentes primarias del orden normativo y jurisprudencial con las cuales se pretende resolver la siguiente pregunta jurídica: ¿Cuáles son los fundamentos filosóficos y jurídicos, para analizar los efectos jurídicos que se desarrollan en el ser humano cuando este adquiere la condición de cadáver en el ordenamiento jurídico colombiano? Este interrogante tiene como fundamento para su respuesta fundamentos del orden filosófico y jurídico que son analizados desde sus concepciones en un enfoque que es desarrollado desde la individualidad del ser y desde su relación con el entorno social y jurídico.
Outcome of staged injection of autologous platelet rich plasma in treatment of mild to moderate knee osteoarthritis
Authors: Gupta Rajat , Avtar Ram , Kumar Krishan
Published: November 2019

Background: Autologous platelet-rich plasma (PRP) offers an easy solution for delivering multiple growth factors needed for tissue repair. Intra-articular injections of PRP have been proposed as a simple low cost minimally invasive way to obtain the concentration of growth factors and biologically active molecules to promote cartilage healing in osteoarthritic (OA) knee joint. The objective of the present study was designed to evaluate the clinical efficacy of autologous platelet rich plasma injection in mild to moderate osteoarthritic knee and to assess the role of serial staged autologous platelet rich plasma injection.

Methods: 50 patients with mild to moderate osteoarthritis of knee were divided into two groups. Group A was given staged injection of freshly prepared autologous PRP in the affected knee. Group B was given single injection of PRP. The Results were evaluated on the basis of the Western Ontario and McMaster Universities Arthritis Index (WOMAC) questionnaire and visual analog scale (VAS) before treatment and 3 weeks, 8 weeks, 16 weeks and 24 weeks after treatment.

Results: At 24-weeks follow up the following observations were made; the MeanVAS in Group A decreased to 3.30 whereas in Group B it increased to 4.54. The Mean WOMAC score in Group A was reduced to a mere28.64 in Group A and in Group B it was 39.76.

Conclusions: It is concluded from our study that concomitant use of serial staged injection (two) of PRP over four months is more effective than single injection in patients with mild to moderate OA of knee.
Increasing access and students’ enrolment in basic education: A challenge to quality education in Kano State, Nigeria
Authors: Musa Aliyu , Bichi Ado Abdu
Published: November 2019

The drive to improve basic education delivery in Nigeria has been given tremendous impetus in recent years. The goal of basic education can only be realised through provision of inclusive, equitable and quality education; several indicators have shown that authorities jettison quality to focus in increasing access. This paper, therefore, reviews the provision and delivery of basic education in Kano state. Specifically, the paper revealed how increasing enrolment in affects the efforts to improve the quality of education in the state. While the government initiatives made significant differences by increasing access to education of children who would have been denied schooling, quality indicators which include teachers-pupil ratio, students’ academic achievement, attrition and completion rates have stagnated at best or dropped. Efforts to ensure and maintain quality education in the state are reported to face serious challenges, including mainly inadequate funding that will ensure provision of essential teaching and learning facilities and insufficient trained and competent teachers. Finally, the paper recommends among others that, adequate funding and ensuring judicious management of the funds, competent teachers should be engaged and their welfare be adequately improved, as well as the supply and maintenances of teaching and learning facilities. Sincerity in the implementations of these and other recommendations would positively affect the over 3.5 million children in basic education, encouraging further enrolment and improving the quality of education they receive.
Keywords: Access, completion rate teaching, enrolment, quality education
Determinación del caudal ambiental en el río Birrís, Costa Rica
Authors: Guzmán-Arias Isabel , Watson Fernando , Villagra-Mendoza Karolina
Published: November 2019

En Costa Rica el caudal ambiental se calcula como un 10% del aforo caudal medio del río. Este porcentaje ha carecido de fundamento científico en relación con las condiciones fluviales aptas para preservar los ecosistemas presentes en los cauces. Las concesiones de agua para los diferentes usos han provocado un impacto en disponibilidad de agua para algunos lugares y épocas del año y en la calidad del recurso transformando las condiciones fisicoquímicas y ecológicas de los cauces. Del sistema fluvial del río Birrís, se concesiona un 20% para uso consuntivo como producción agrícola, humano y riego, y el restante se utiliza para la generación hidroeléctrica. Debido a la baja calidad de sus aguas a la fecha no existen especies indicadoras lo que imposibilita el uso de enfoques que tomen en cuenta los ecosistemas para generar curvas de preferencia. El presente trabajo utilizó un enfoque hidrológico para determinar el caudal ambiental del río Birrís usando la metodología de curva de duración de caudales. Se basó en el análisis de series de datos de clima obtenidas por 10 años y series de caudales diarios de un periodo de tres años. Se realizaron tres aforos de biota y flujo en tres puntos distribuidos a lo largo del cauce principal distribuidos en un periodo de un año. Finalmente, se determinó el caudal ambiental para un régimen de flujo basado en valores medios mensuales.
Aislamiento de células madre mesenquimales derivadas de tejido adiposo del pliegue inguinal murino: un protocolo para obtener lo mejor de pequeñas muestras
Authors: Castro-Piedra Silvia , Morales-Sánchez Johan
Published: November 2019

Las células madre se caracterizan por autorrenovación y diferenciación en varios tipos de células. Las primeras células madre identificadas fueron las hematopoyéticas; sin embargo, existen diferentes tipos, de diferente origen y potencial de diferenciación, por ejemplo, las células madres adultas mesenquimales, aisladas de médula ósea a mediados del siglo pasado. Actualmente se sabe que son población quiescente de muchos tejidos adultos, como el tejido adiposo. Estas células cuentan con gran potencial de diferenciación in vitro, son fuente de factores de crecimiento y citoquinas que participan en la reparación de tejidos. Por lo anterior, son protagonistas investigaciones preclínicas y clínicas para tratar heridas en piel, lesiones de médula espinal, isquemia en el miocardio, con resultados prometedores. Para este estudio, se extrajo tejido adiposo de ratones y se aisló la fracción vascular estromal. Esta, se cultivó in vitro para que las células que tuvieran adherencia al plástico crecieran. Posteriormente se les analizó la cinética de crecimiento, expresión de los marcadores de células madre y potencial de diferenciación. Las células lograron crecer y proliferar in vitro y mostraron una cinética similar a la reportada para estas células. Un veinticinco por ciento de las células cultivadas, mostraron positividad para los marcadores de células madre y se lograron diferenciar eficientemente en linajes adipogénico, condrogénico y osteogénico. El protocolo establecido en el presente trabajo permitió cumplir con la mayor parte de los criterios establecidos por la Sociedad Internacional para Terapia Celular y Génica, dando pie a futuras investigaciones para el desarrollo de terapias alternativas al tratamiento de heridas.
Control de calidad de fitofármacos con la utilización de Resonancia Magnética Nuclear (RMN) y la aplicación del análisis de componentes principales (PCA)
Authors: Quesada-Espinoza Javier , Murillo-Masís Renato
Published: November 2019

Los fitofármacos, aunque generalmente están compuestos de productos naturales, deben ser estrictamente controlados en cuando a su contenido de principios activos. Existen varios métodos de control de calidad entre los que se destacan la cromatografía líquida y la espectrometría de masas; en nuestra investigación llevamos a cabo un control de calidad con la utilización de Resonancia Magnética Nuclear, método el cual es de fácil utilización e interpretación, y altamente versátil, además de ser una técnica no destructiva, y consecuentemente un estudio de componentes principales para obtener una mejor visualización de los resultados. Lo que se logró demostrar es que en Costa Rica existe una gran cantidad de productos comercializados que aparentemente no contienen los principios activos que deberían tener de acuerdo al etiquetado, como pudo demostrarse en el caso de los productos de Gingko biloba, Hypericum perforatum y Silybum marianum. Para el caso de Equinacea spp, el problema de la comparación es que los diferentes productos contienen varias especies del mismo género y esto dificulta un análisis detallado. Además, el análisis de los componentes principales hizo posible demostrar que es difícil utilizar esta técnica sin un conocimiento previo de las técnicas de análisis utilizadas y qué debe interpretarse. Los resultados también indican que las regulaciones en Costa Rica no son lo suficientemente rigurosas para este tipo de productos, y estas deben ser revisadas por la Agencia Nacional Reguladora.
Uso de la simulación en procesos de construcción
Authors: Ramón-Elizondo Alejandro , Barboza-Arguedas Róger
Published: November 2019

En un entorno económico como el actual, las empresas de construcción deben procurar que los procesos que se desarrollan en sus proyectos se caractericen por altos rendimientos y desempeños operacionales, sean eficientes en cuando al uso de materiales, cuenten con altas tasas de productividad de los recursos físicos y humanos y lo hagan en un ambiente de riesgos controlados. En este artículo se exploran las estrategias y herramientas relacionadas con el modelado y la simulación de procesos que pueden ayudar a conseguir estos fines y otros relacionados.Para lograr esto primero se aborda la conceptualización necesaria para entender la gestión de procesos orientada a resultados, enseguida se profundiza en los conceptos del modelado y la simulación, así como otros temas relacionados, abordando aquí el uso y las características mas sobresalientes de los programas informáticos de simulación, incluyendo las ventajas y desventajas de su uso. Se ahonda luego en la descripción del software FlexSim, explorando sus principales características y facilidades que ofrece para su uso y para el análisis de los resultados de las simulaciones.Luego de lo anterior se incluyen apartados en los que se amplía estos temas realizando un estudio más detallado, particularizándolos para relacionarlos con los procesos de construcción y la utilización de escenarios y su importancia para la gestión de riesgos y la depuración y validación de modelos.
El concepto de debate emergente como recurso para la inclusión de competencias interculturales en la formación inicial docente en Chile
Authors: Cubillos Alfaro Froilán , Romero Zamora Benjamín , Navarro Juan José
Published: November 2019

El presente artículo se orienta a problematizar el desarrollo de herramientas y competencias profesionales orientadas a la interculturalidad en los profesores de Chile, analizando la formación inicial docente en dicho país y su pertinencia para el ejercicio profesional de los profesores en contextos de diversidad cultural con presencia indígena, puntualmente mapuche. Para ello se abordan las condiciones en las que se ha llevado a cabo la escolarización de estudiantes mapuche, además de las características y circunstancias de la implementación hasta la fecha del Programa de Educación Intercultural Bilingüe (PEIB), proyecto que durante las últimas dos décadas se ha constituido en el principal referente en cuanto a la interculturalidad educacional en Chile. Ambos elementos se consideran como antecedentes de referencia para el análisis de la naturaleza y las características de la formación inicial docente que se desarrolla actualmente en las instituciones de educación superior (IES) chilenas, tema tratado en el segundo apartado del artículo. Esto demuestra la tensión existente entre las tendencias del contexto y la práctica universitaria de formación de profesores, ante cuyos resultados se plantea, en un tercer apartado, el concepto de debate emergente como una herramienta epistemológica que permita, facilite y oriente la inclusión transversal de elementos adecuados para una pedagogía intercultural en la trayectoria académica de aquellos estudiantes que serán los futuros docentes chilenos.
Childhood Financial Socialization and Debt-Related Financial Well-Being Indicators in Adulthood
Authors: Ammerman David Allen , Stueve Cherie
Published: November 2019

The purpose of this study was to explore the potential influence of childhood financial socialization on financial well-being in adulthood. Using a sample (N = 2,213) from De Nederlandsche Bank Household Survey (DHS) we modeled the likelihood of household debt/asset ratio less than or equal to 40%, and the likelihood of a household reporting a current ratio (liquid asset /short-term debt ratio) greater than or equal to 100%. Consistent with predictions of social learning theory, being encouraged to save during childhood had a positive association with meeting the financial planning industry benchmarks for these financial ratios in adulthood. The key implication is that the path to financial well-being does not begin with financial knowledge attained in adulthood, but instead begins with experiential learning and socialization during childhood.
Sistemas auxiliares para a estabilização estrutural
Authors: Simão Luciano Vinhosa
Published: November 2019

Sistemas auxiliares para a estabilização estrutural é uma série fotográfica que joga com anotações de pequenos eventos urbanos que se investem de soluções de engenharia de última hora. As imagens põem em evidência certos aspectos insignificantes do cotidiano e por isso mesmo negligenciados pela experiência do cidadão comum, brutalizado pela rotina. Neste sentido, o trabalho, por dar ênfase ao avesso das coisas, revela um humor lacônico, muito atrelado a uma experiência privada, mas que se insinua coletivamente quando, ao servir-se da forma artística da fotografia, ostenta para o público a relevância do irrelevante.
Oscilações sobre um quadrado em breves anotações sobre o tempo
Authors: Cirilo Aparecido José
Published: November 2019

Este artigo enfoca a Série Anotações sobre o Tempo (2001/2015), de José Cirillo em seu espaço denso de sentidos. É uma reflexão fenomenológica sobre o tempo e a material, tnao presents nas artes contemporáneas. O texto discute o percurso poético de uma intencionalidade no processo criativo deste artista. topologia possível de expansão que redimensiona. Discute sobre os traços da memória individual e coletiva que se fundem no processo criativo.
A arte e o demônio da estética
Authors: Esperante Marcel Alexandre Limp
Published: November 2019

O texto trata alguns dos impasses e contradições que acompanham a arte desde o modernismo até o que hoje se compreende como pós-modernidade ou arte pós-moderna, entendendo que possivelmente sejam faces da mesma moeda. Tomando como base o pensamento de Giorgio Agamben, que discute a crise da arte dialogando com Kant, Heidegger e Nietzsche buscamos refletir sobre como a arte e os artistas têm oferecido respostas e através de suas obras gerado dúvidas sobre suas possibilidades de existência e sobrevivência no âmbito da cultura. Poderá a arte salvar a si mesma? Sobreviverá à sua própria sombra? É possível estabelecer alguma relação entre a arte e a verdade? Questões urgentes que não possuem soluções imediatas, mas que precisam ser enfrentadas se ainda acreditamos em algo que chamamos arte.
Tempo expandido
Authors: Coster Eliane
Published: November 2019

O presente trabalho propõe discutir quatro diferentes posicionamentos teóricos recentes acerca do lugar do tempo na fotografia fixa. Os posicionamentos foram apresentados por fotógrafos que são igualmente teóricos e ensaístas em alguns artigos e fornecem bases interessantes para aprofundar a reflexão sobre o tema. Todos eles partem de uma premissa comum, a de que o tempo na fotografia tem sido pensado a partir de um lugar espacial e não realmente temporal e propõe reposicionar o tempo em sua agência na subjetividade e na concretude da fotografia.
Eu sou neguinha
Authors: Scamparini Paula
Published: November 2019

Este artigo se propõe a atualizar a reflexão encampada em tese intitulada “escrita de auto-paisagem”, na qual se pretendeu alargar a ideia paisagem para seu uso enquanto dispositivo para a criação artística. Para tanto, elabora-se uma revisão introdutória da potencialidade da ideia paisagem, seguida da apreciação de três projetos recentes que partem deste campo reflexivo e o expandem, e que sustentam discussões e causas em comum. A compreensão acerca de paisagem a que se remetem os procedimentos ou desdobramentos descritos neste artigo atravessa desde a ideação à realização espacial dos projetos contemplados, tomando paisagem como ação, postura ideal para a prática artística, introduzindo experimentalmente o termo “paisagear”.
Arquivo e consignação
Authors: Carvalho José Maçãs de
Published: November 2019

“Arquivo e Consignação” tenta comprovar a hipótese de as imagens ativarem novos significados na aproximação (física) a outras imagens, perdendo a sua unicidade para assim ganharem um sentido relacional e expansivo. Estamos perante o conceito de “imagem dialéctica” (Walter Benjamim) que não corporiza a continuidade entre passado e presente, mas concentra em si o movimento daquilo que foi com o agora, tornando-se o centro de um gesto de rememoração. Falamos também acerca da dualidade da imagem, acerca da sua capacidade de remeter a um campo de significado distante de si.
A arte, a obra, o mundo
Authors: Oliveira Luiz Sérgio da Cruz
Published: November 2019

Para muitos, a arte nunca esteve nem tampouco está afastada de sua dimensão crítica. Quer tenha colorações políticas e/ou ideológicas ou se apresente simplesmente como apolítica, a arte se mantém diligente diante das coisas do mundo, o que seria suficiente para assegurar e mesmo consagrar a criticidade da arte, independentemente da vontade, do desejo ou mesmo da intencionalidade do artista criador. No entanto, essas afirmações, lançados ao vento na expectativa de sua replicação acrítica ad infinitum, parecem comprometidas com a naturalização de mitos que tendem a transformar o processo de criação artística em narrativas fabulosas, empurrando a arte para os confins de um imaginário no qual a arte parece dissociada do mundo, ao contrário do que supõe sua dimensão crítica.
A arte como estorvo necessário e a glória do anônimo no museu do mundo
Authors: Sá Rubens Pileggi
Published: November 2019

O presente artigo defende a inclusão do ser humano comum e anônimo na lógica de uma arte que somente pode ser pensada em sentido público, dentro do cotidiano e da vida prática das pessoas. Para isso, proponho uma discussão baseada em um recorte de textos escritos por teóricos como Lorenzo Mammi, Rosalind Krauss e Jacques Rancière, cotejando-os com a frase “o museu é o mundo”, proferida pelo artista brasileiro Hélio Oiticica. Assim, tanto o contorno da arte, que pode ser pensado em termos de uma autoconsciência, quanto a questão dos dispositivos de controle, além dos modos de percepção e de endereçamento da produção sensível dentro do regime estético, podem operar ficções ligadas a uma construção histórica de reinvenção de mundos.
O tempo da arte como um corpo em camadas
Authors: Farina Mauricius Martins
Published: November 2019

Neste texto, partimos de conexões entre objetos e processos, buscando uma aproximação com a formação complexa da expressão, considerando a ampliação de oportunidades que a experiência da arte propõe ao mundo. Em sua fase "pós-autônoma", a arte se reconecta com a realidade que é agora uma teia cujos emaranhados redesenham uma circularidade orgânica em sua própria sobrevivência.
Resiliens
Authors: Strambi Marta Luiza
Published: November 2019

O presente artigo contempla a convergência teoria e prática, envolvendo o desenvolvimento poético de obras que foram produzidas sob o fulgor de um pensamento artístico que tem como condição sua dimensão crítica, as relações com a autobiografia e seus campos ‘borrados’ nas modalidades em questão. Para tanto ele inclui a instalação Campo de forças sob o conceito de artificialidade e resistência à vida e, sua discussão sobre o campo em “perigo”, ações que sobrepõem “o que se quer” ao “que não podemos dominar”.
Dualismos
Authors: Niculitcheff Sergio
Published: November 2019

O objetivo deste texto é analisar e refletir acerca da alternância entre uma abordagem com enfoque na mimese da representação figurativa e outra com caráter mais informal e abstrato nas obras de certos artistas. Esse é um procedimento frequente de determinados pintores na contemporaneidade. Esta reflexão está focada em quatro artistas: Sergio Nunes, Paulo Pasta, Rodrigo Andrade e Luiz Zerbini. A pintura e seus processos e técnicas são privilegiadas nesta pesquisa, sendo analisados aspectos formais e poéticos das obras destes artistas.
Objetos do desenho
Authors: Aidar Fernando Ngan
Published: November 2019

A proposta desse artigo é discutir o desenvolvimento poético de alguns objetos de arte. Mais especificamente, da concepção de algumas peças escultóricas realizadas em cerâmica. Para isso, o texto desenvolve uma discussão teórica a respeito de dois temas: primeiro, o desenho enquanto gesto, enquanto “traço do humano esquecido na coisa”; em seguida, sobre o lugar dos objetos na vida das pessoas da chamada “civilização urbana”. Então ele termina discutindo alguns desenhos (e colagens e gravuras) que desembocaram nos objetos descritos.
Physical Conditions and Indoor Air Pollution in house and Pneumonia In Toddlers
Authors: Nalasari Kurnia Nalasari , Pertiwi Wiwik Eko
Published: November 2019

Pneumonia was an acute infectious disease that was still a problem in toddlers. Tegalratu Village was the highest region with Toddlers’ pneumonia in Cilegon City. The purpose of this study was to analyze the relationship between house physical conditions and indoor air pollution with pneumonia in toddlers in Tegalratu Ciwandan Village Cilegon City. This study was an observational study with cross sectional design. The sample of this studi were 90 mothers who had toddlers. Interviews and observation needed to data collection. The physical condition of the house were condition of the walls, floors, and ceiling, while the sources of indoor air pollutions were cigarette smoke, cooking fuel smoke, and mosquito repellant smoke. Data analyzed with chi-square test. The result showed that there were 10 toddlers (11,1%) with pneumonia, and the variable that were significantly related to the incidents of pneumonia in toddlers was the condition of ceiling (p=0,016<α). Puskesmas should improve coordination across programs to increase public awareness of importance of environment condition to meet the requirements for the best possible degree of health.
Source of Benzene, Characteristics and Hemoglobin Levels of AHASS Mechanical Workers at Kediri City
Authors: Bestari Erini Meilina
Published: November 2019

Benzene exposure to mechanic workers came from contact with gasoline and oil. Source of exposure benzene is entering the human body through breathing, skin, and mouth. Then it would be distributed into the bone marrow. So, the cell processes in the blood were disrupted. The purpose of this study was to determine the source of benzene, characteristics and hemoglobin levels of mechanical workers. This research was an observational study, using a cross-sectional design. The sample in this study were 20 mechanical workers, taken randomly by simple random sampling. Blood samples were taken to measure hemoglobin levels and a questionnaire to see mechanical characteristics, such as age, length of work, years of service, a habit of washing hands with gasoline, smoke habits, and body armor. Data analyzed descriptively. There was a source of benzene in the work environment such as gasoline, motor vehicle fumes, gasoline vapor, oil, used oil, and majun. Characteristics of the mechanical workers have the habit of washing hands with gasoline after contact with oil by 75% and all mechanical workers have normal hemoglobin levels. Mechanics are advised to wash their hands with soap and water after each work without using gasoline, and as well as holding socialization related to occupational health and safety.
Directional Modulation Technique Using a Polarization Sensitive Array for Physical Layer Security Enhancement
Authors: Zhang Wei , Li Bin , Le Mingnan , Wang Jun , Peng Jinye
Published: November 2019

Directional modulation (DM), as an emerging promising physical layer security (PLS) technique at the transmitter side with the help of an antenna array, has developed rapidly over decades. In this study, a DM technique using a polarization sensitive array (PSA) to produce the modulation with different polarization states (PSs) at different directions is investigated. PSA can be employed for more effective DM for an additional degree of freedom provided in the polarization domain. The polarization information can be exploited to transmit different data streams simultaneously at the same directions, same frequency, but with fixed different PSs in the desired directions to increase the channel capacity, and with random PSs off the desired directions to enhance PLS. The proposed method has the capability of concurrently projecting independent signals into different specified spatial directions while simultaneously distorting signal constellation in all other directions. Mathematical analysis and design examples for single-beam and multi-beam DM systems are presented. Simulation results demonstrate that the proposed method is more effective for PLS and the channel capacity is significantly improved compared with conventional antenna arrays.
The Word-A.C.A.I.D System: A Methodology Framework for Postgraduate Research Praxis
Authors: Lebese Mokone Solomon
Published: November 2019

This presentation is based on the article I wrote ((Lebese, 2018) where the A.C.A.I.D system was confirmed as directing human behavior in all situations. The A.C.A.I.D concept is an acronym. A stands for Attention, C for Consideration, A for Action, I for Internalisation and D for duplication. I developed the system over a period of twenty years as an impirical study, to answer a question: Why do I do what I do when I do what I do? Every behavior I exhibited followed specific steps from idea through to duplication. Once completed, I unobtrusively checked if other human beings behaved similarly. Without fail I observed that the A.C.A.I.D is a system that all humans knowingly and unknowingly follow. Through the system I could easily predict how the learners I was teaching could behave in particular situations. Also, I could assist learners who wanted change in their behaviors to know at what stage in the system that change was possible.The postgraduate scholar behaves in a predetermined manner in the research activity. Those behaviors follow an accepted protocol which invariably goes through all the stages of the A.C.A.I.D system. It starts with an idea through to the duplication step which I call “The idea on legs”. When it gets to this stage, it goes back to the beginning and sold as an idea. The system is cyclical.The A.C.A.I.D system as a framework helps the postgraduate researcher to follow an acceptable research praxis from idea interrogation through all the stages. This helps the researcher to follow acceptable predictable methodologis through research.
Evaluation of Mixed Deep Neural Networks for Reverberant Speech Enhancement
Authors: Gutiérrez-Muñoz Michelle , González-Salazar Astryd , Coto-Jiménez Marvin
Published: November 2019

Speech signals are degraded in real-life environments, product of background noise or other factors. The processing of such signals for voice recognition and voice analysis systems presents important challenges. One of the conditions that make adverse quality difficult to handle in those systems is reverberation, produced by sound wave reflections that travel from the source to the microphone in multiple directions.To enhance signals in such adverse conditions, several deep learning-based methods have been proposed and proven to be effective. Recently, recurrent neural networks, especially those with long and short-term memory (LSTM), have presented surprising results in tasks related to time-dependent processing of signals, such as speech. One of the most challenging aspects of LSTM networks is the high computational cost of the training procedure, which has limited extended experimentation in several cases. In this work, we present a proposal to evaluate the hybrid models of neural networks to learn different reverberation conditions without any previous information. The results show that some combination of LSTM and perceptron layers produce good results in comparison to those from pure LSTM networks, given a fixed number of layers. The evaluation has been made based on quality measurements of the signal's spectrum, training time of the networks and statistical validation of results. Results help to affirm the fact that hybrid networks represent an important solution for speech signal enhancement, with advantages in efficiency, but without a significan drop in quality.
Wind Turbine Vertical Axis H Rotor Type with 1 KW Capacity at Suwuk Beach, Kebumen
Authors: Gustiantono Achmad , Dwi Prija Tjahjana Dominicus Danardono , Hadi Syamsul
Published: November 2019

Tulisan ini membahas tentang analisa potensi energi angin di pantai Suwuk Kebumen dan perancangan turbin angin tipe H-Rotor yang sesuai dengan karakteristik angin di pantai tersebut. Analisa potensi energi angin menggunakan metode distribusi Weibull berdasarkan data kecepatan angin di lokasi pengukuran selama 2 tahun. Analisa distribusi Weibull menunjukkan karakteristik kecepatan angin di lokasi pengukuran yang akan dijadikan dasar dalam perancangan turbin angin H-Rotor. Perancangan turbin angin H-Rotor terdiri dari komponen-komponen seperti sudu, strut, dudukan strut, poros, tiang, dan generator. Diperoleh rancangan turbin angin H-Rotor dengan diameter x tinggi sebesar 2,7 x 2,7 meter menggunakan airfoil tipe NACA 0018 dengan kapasitas daya keluaran sebesar 1 kW.
Pengaruh variasi kecepatan putar dan diameter tool terhadap sifat mekanik sambungan fssw aluminium alloy 5052 dan baja ss400
Authors: Ramadhan Wahid , Muhayat Nurul , Triyono T
Published: November 2019

Friction stir spot welding (FSSW) is a development from solid state welding to jointa different materials (dissimilar). Dissimilar FSSW is widely used in the automotive industry due to the advantages of joining these two materials with weight savings while exploiting the best strength. This research aims to know the effect of welding parameters of rotation speed and tool diameter on mechanical properties on dissimilar FSSW aluminum alloy 5052 and SS400 steel. Variations in rotational speed used is 800, 1250, 1600, 2000 rpm and tool diameter 10, 12, 14 mm. Plunge depth and dwell time in this research were made uniform. This research used a lap joint configuration with aluminum plate placed on the top and steel plate placed on the bottom. Physical characteristics were analyzed through observation of macro and microstructures, while mechanical characteristics through vickers hardness testing and shear tensile testing. The results indicate that the diameter of 10 mm tool and 1600 rpm rotation speed produce the highest tensile shear load value of 2.4 kN with interface fracture.
PENGARUH TEMPERATUR KALSINASI TERHADAP SIFAT MEKANIK MATERIAL SCAFFOLD HIDROKSIAPATIT DARI TULANG KAMBING
Authors: Eka Prawira Setiawan , Triyono Joko , Triyono Teguh
Published: November 2019

In this study, a preliminary study on the preparation of hydroxyapatite (HAp) as bone filler was made from sheep femur bone by calcination method. The femur of the sheep is cut into a form of scaffold with dimensions of 5 mm x 5 mm x 5 mm. The calcination process is performed at four variations of temperature (700oC, 900oC, 1100oC, 1300oC). Characterization of scaffold material done before and after calcination process, it intended to find out the influence and relationship between calcination of temperature on the mechanical properties of SHA material. The results of hardness testing show that the higher calcination temperature then the SHA material hardness value also increased. The optimum hardness value occurs at 1100oC calcination temperature of 38.23±0.985VHN. Meanwhile, high calcination temperature will also decrease the compressive strength of SHA material. The value of the optimum compressive strength is achieved at 1100oC calcination temperature of 2.23±0.249 MPa. The morphology of SHA scaffold was analyzed by Scanning Electronic Microscopy (SEM). The observation of SEM shows the occurrence of porous interconnections in all temperature variations. SEM analysis results show that porous interconnect is formed at all temperature variations with diameter size ± 100-500μm. Very high calcination temperature will give the impact of HAp wall is getting thinner and the porous diameter is getting bigger. Porous interconnection damage is also seen at 1300°C which causes the mechanical properties of SHA to decrease.