bluuebunny/crossref_metadata_2025 huggingface dataset:
Twelve tips for structuring classes in higher education: lessons learned from a biology premedical class
Authors: Chandra Archita , Schmitt Genevieve , Ganjoo Rohini
Published: June 2019

This article was migrated. The article was marked as recommended. The efficacy of flipped classrooms on student learning is dependent on student motivation. We conducted a study on the impact of the flipped classroom on student performance and satisfaction among highly motivated students enrolled in a post-baccalaureate pre-medicine program for career-changers. Surprisingly, students in both traditional and flipped classrooms indicated lecture was the largest contributor to their learning. Additionally, students in the flipped classroom highlighted specific activities most useful to their engagement, comprehension, and exam performance. Thus for heterogeneous student populations in higher education, didactic lecture remains an integral component of learning. Based on our study and relevant literature, we suggest tips on how to effectively structure courses in higher education that are tailored to the learning needs and motivations of your specific student demographic.
The Mediating Effects of Emotional Expressiveness and Peer Relationship in the Relationship between Parents’ Rearing Attitude and Subjective Well-Being Perceived by Non-Disabled Children with Disabled Sibling
Authors:   The Korean Society of Special Education, Lee Ji yeon , Jo Yong joo
Published: June 2019

The purpose of this study was to examine the mediating effects of emotional expressiveness and peer relationship between parents' rearing attitude and subjective well-being perceived by non-disabled children with disabled sibling. The study subjects were 135 non-disabled children with disabled sibling living in Seoul, Gyeonggi, and Incheon. Data analysis was performed with correlation analysis using SPSS 22.0, path analysis using SPSS Macro, and verification of mediating effect using bootstrapping. The result of the analysis showed that, first, affectionate rearing attitudes of the mother and father revealed a significant positive correlation with emotional expressiveness, peer relationship, and subjective well-being, but the autonomous rearing attitude of the mother and father showed no significant correlation with emotional expression. Second, in the relationship between the mother's and father's affectionate parenting attitude and subjective well-being, emotional expressiveness was mediated through peer relationships. In the relationship between mother's and father's autonomous rearing attitude and subjective well-being, emotional expressiveness had no mediating effect; only peer relationships were found to have mediating effects. Finally, the implications and limitations of this study are discussed.
Analysis of Digital Textbooks and the Improvements on the Development Process of Digital Textbooks from the Universal Design for Learning Perspective
Authors:   The Korean Society of Special Education, Son Jiyoung , Cha Hyunjin
Published: June 2019

The purpose of the study is to analyze the digital textbooks currently utilized in the educational field and to identify future improvements on the process of the digital textbook developments through developers’ input from the Universal Design for Learning (UDL) perspective. To achieve the objective, digital textbooks (grades 3–4 social studies and science subjects) developed based on the 2015 revised curriculum were analyzed based on the UDL principles. Additionally, the focus group interviews (FGI) were conducted with seven developers who had an experience on developing digital textbooks. First of all, from the analysis of digital textbooks, it was revealed that the level of UDL applicability in current digital textbooks is very low, thus the improvements on the digital textbooks were suggested for the following principle: options for perception, for physical action, for executive functions, and for sustaining effort and persistence. Furthermore, based on the findings from the FGI, improvements on the process of the digital textbook developments were suggested as follows: Time and budget support, development of technical standards, national pilot projects and usability testing of students with disabilities, providing Cloud-based LMS service, improving accessibility of platforms, provision of high-quality equipment and internet at the school site, and continuous management. Based on the results, we discussed and suggested further studies.
The Characteristics of Social Support and its Relationship with Depression in Mothers of Children with Cerebral Palsy
Authors:   The Korean Society of Special Education, Park Eun-Young
Published: June 2019

The study was conducted to understand how the social support levels perceived by mothers of children with cerebral palsy differ across the characteristics of both the children and their mother, and to find out the relationship between social support and depression. For this, 202 mothers of children with cerebral palsy participated in the survey. According to the analysis of the data surveyed, the instrumental support score was significantly the highest among social support sub-domains perceived by the mother. There were significant differences in social support depending on the age of the mother and the gross motor functions of the children with cerebral palsy. The multivariate regression analysis to examine the relationship between social support and depression level shows that emotional support might decrease a mother’s depression level. Based on these results, we suggest that the degree of the child’s disabilities and the age of the mother is required in determining the level of social support, and that support strategies, such as emotional support, will be needed to reduce the level of depression in mothers of children with cerebral palsy.
Planned Pregnancy in Female Patients with Chronic Myeloid Leukemia Receiving Tyrosine Kinase Inhibitor Therapy
Authors: Dou Xuelin , Qin Yazhen , Huang Xiaojun , Jiang Qian
Published: June 2019

Background

The aim of this study was to explore outcomes of planned pregnancy in female patients with chronic myeloid leukemia (CML) on tyrosine kinase inhibitors (TKIs).

Materials and Methods

Data of female patients proceeding with a planned pregnancy were retrospectively reviewed.

Results

A total of 17 patients with CML who achieved at least a major molecular response (MMR) during imatinib (n = 13) or nilotinib (n = 4) therapy prior to a planned pregnancy were enrolled. At the time of TKI interruption, six were in MMR, two in molecular response 4 (MR4), and nine in molecular response 4.5 (MR4.5). TKI therapy was discontinued 6 weeks (range, 2–15 weeks) before conception in 4 patients and at gestational age of 4 weeks (range, 2–5 weeks) after determination of pregnancy in 13 patients. Apart from 1 patient who suffered a spontaneous abortion, 16 patients delivered uneventfully. A total of 10 patients lost MMR after stopping TKIs; 8 lost molecular response 2, and 3 lost complete hematological response. Log-rank analyses showed achieving MR4 (p = .030) or MR4.5 (p = .031), complete cytogenetic response duration ≥3.5 years (p = .049), and MMR duration ≥3.5 years (p = .040) were significantly associated with longer MMR-failure-free survival during TKI interruption.

Conclusion

Planned pregnancy might be pragmatic in female patients with CML on TKIs. Achieving deep molecular response and, importantly, MMR duration ≥3.5 years were significantly associated with maintaining MMR during pregnancy.

Implications for Practice

Female patients with chronic myeloid leukemia on tyrosine kinase inhibitors (TKIs) wishing to conceive are currently advised to discontinue TKIs before conception. However, the ideal degree and duration of response before stopping TKI, in addition to whether there will be any adverse effect caused by a short exposure of TKI, is unknown. Data of 17 female patients, who achieved at least a major molecular response (MMR) before TKI interruption, was revised, and it was found that achieving deep molecular response and MMR duration ≥3.5 years was significantly associated with maintaining MMR during pregnancy. This provides direct evidence for a planned pregnancy strategy, and stopping TKI immediately after determination of pregnancy in female patients might be pragmatic.
The ghostly matter of asylum in Kivu Ruhorahoza’s A Tree Has Fallen (Europa)
Authors: Higgins MaryEllen
Published: June 2019

This paper applies Avery Gordon’s insights in Ghostly Matters to Kivu Ruhorahoza’s 2019 film, A Tree Has Fallen, and vice-versa. For Gordon, the ghost reveals visibility itself to be “a complex system of permissions and prohibitions.” The ghost is a case, as Gordon puts it, of “visible invisibility,” of seeing that one is not there. In Ruhorahoza’s film, the protagonist, Simon, is an African asylum seeker in the UK, now a ghost. Even before he becomes ghostly matter, Simon is already ghostly: he is held in limbo, consistently denied, deemed threatening, highly visible yet rendered invisible, a figure whose claims to a past are deemed invalid in official channels. For Gordon, the ghost is a liminal presence, “what appears dead, but is nevertheless powerfully alive.” In Ruhorahoza’s film, the protagonist appears to be alive, but is nevertheless powerfully dead. Gordon notes the refusal of modern social scientists to acknowledge, or to speak to ghosts: what happens when British subjects speak to its African ghosts, and vice versa? This paper investigates what the ghostly relations in the film suggest about political subjectivity, visibility, and the politics of asylum. Potentially, the essay offers a reading of what may no longer be visible in Ruhorahoza’s film, as the essay was written before Ruhorahoza edited A Tree Has Fallen, transformed it, and re-titled it Europa.
In the tracks of the impossible
Authors: Rosales Miguel Ángel
Published: June 2019

Arising from experiences of slavery and exile, flamenco was strongly influenced, (re)created, and (re)imagined by black people who lived in southern Spanish cities for over 400 years. Despite consistent and intentional erasure, the fact is that between the fifteenth and nineteenth centuries, there was an important Black presence in the Iberian Peninsula. When I began research for Gurumbé: Canciones de tu Memoria Negra (2016) (Gurumbé: Afro-Andalucian Memories), I set out to reveal this history, to break this silence and expulsion that denies the history and legacy—and the humanity—of Afro-Andalusians. And under the many layers of silencing the memory of Spanish Afrodescendants, I found that Black memory had survived in the body. In flamenco, it created a discourse of resistance in the fact of the oppressors which has transcended time and history.
Imagining a politics of relation: Glissant’s border thought and the German border
Authors: März Moses
Published: June 2019

This study explores the theoretical and political potentials of Édouard Glissant’s philosophy of relation and its approach to the issues of borders, migration, and the setup of political communities as proposed by his pensée nouvelle de la frontière (new border thought), against the background of the German migration crisis of 2015. The main argument of this article is that Glissant’s work offers an alternative epistemological and normative framework through which the contemporary political issues arising around the phenomenon of repressive border regimes can be studied. To demonstrate this point, this article works with Glissant’s border thought as an analytical lens and proposes a pathway for studying the contemporary German border regime. Particular emphasis is placed on the identification of potential areas where a Glissantian politics of relation could intervene with the goal of transforming borders from impermeable walls into points of passage. By exploring the political implications of his border thought, as well as the larger philosophical context from which it emerges, while using a transdisciplinary approach that borrows from literary and political studies, this work contributes to ongoing debates in postcolonial studies on borders and borderlessness, as well as Glissant’s political legacy in the twenty-first century.
Setting readers at sea: Fatou Diome’s Ventre de l’Atlantique
Authors: Goldblatt Cullen
Published: June 2019

Fatou Diome’s first novel, Le Ventre de l’Atlantique (2003), can be read as a work of migrant literature in which the Atlantic figures as a separating expanse beholden to a single past, that of the Atlantic Slave Trade. The ocean divides contemporary African migrants to Europe from the continent, as it did enslaved Africans taken forcibly to the Americas; it consumes a returned impoverished migrant, as it swallowed those who did not survive the Middle Passage. Yet for the authorial protagonist, Salie, and her island home, the Senegalese fishing village of Niodior, the Atlantic evokes multiple histories and experiences. This ocean is a place of freedom, as well as its absence; of daily sustenance, as well as migration; of life, as well as death; of postcolonial violence, as well as the violence of the Trade. The novel’s Atlantic, like the text as a whole, alludes to many pasts and, at times, abandons the dualities of place, race, and gender that organize most contemporary discourse about migration and oppression. Passages of opaque desire and oblique critique diverge from a dichotomous geography of continents and subject positions. Where Salie and Niodior emerge uncontained by categories inherited from colonial discourses, there are intimations of what genuinely postcolonial freedom might be.
(Im)mobilities and migration in the work of César Mba Abogo and Donato Ndongo-Bidyogo
Authors: Borst Julia
Published: June 2019

Many literary texts written by authors of African origin in the Spanish language engage with the experience of migration and of living in a European society that marginalizes and homogenizes migrants as the ‘African Other.’ Rather than reproduce stereotypical images of African migrants, these texts challenge a biased debate on migration to Europe, offering an alternative vision of a complex phenomenon. In these texts, migrants are individuals whose mobility is restricted because they are subjected to processes of Othering, which confine them to the margins of Spanish society, raising issues of mobility in/justice and forced im/mobilities related to hegemonic power relations, coloniality, and race. Privileging the perspective of African migrant subjects in creating new imaginaries of migration to Europe, this article examines the mobilities paradigm in the context of transnational migration in a postcolonial era and discusses the potential of literary texts to unsilence ‘immobile voices.’ Through this lens, I offer readings of César Mba Abogo’s El Porteador de Marlow: Canción negra sin color (2007) and Donato Ndongo-Bidyogo’s El Metro (2007), grounding my scholarship in Equatoguinean literature and contemporary hispanophone African literature.
Designing a Logic Model to Inform Montessori Research
Authors: Culclasure Brooke Taylor , Daoust Carolyn J. , Cote Sally Morris , Zoll Susan
Published: June 2019

Montessori education has a long history, but its recent growth in American public schools has led to increased interest in research efforts, particularly in exploring the potential of the Montessori experience to moderate the effects of poverty and in gathering data to evaluate public investment in Montessori schools. To assist research efforts, this paper introduces a comprehensive visual model, or logic model, that depicts the core components, underlying assumptions, and intended outcomes of the Montessori approach. Logic modeling, which results in a visual representation depicting the connections among a program’s inputs, primary activities, and outcomes, is often used in program planning and research to provide a common framework from which to work. Developed over a 3-year period by a collaborative group of experienced Montessori researchers and practitioners, the Logic Model for Montessori Education presented in this paper is a valuable tool for researchers with the potential to lay a foundation across disciplines for future research that is both rigorous and systematic in its measurement of Montessori processes and outcomes.
Immune Cell Isolation from Mouse Spleen v1
Authors: Burgin Grace , Rogel Noga , Biton Moshe
Published: June 2019

To isolate immune cells from a mouse spleen before sorting
¿A dónde van los expresidentes latinoamericanos? Salida de la política y trayectorias pospresidenciales en América Latina (1978-2018)
Authors: Márquez Romo Cristian
Published: June 2019

La mayor parte de los estudios sobre trayectorias políticas centran su atención en la entrada o el desarrollo de estas. Los trabajos sobre la salida de la política, en general, y en el caso de los presidentes, en particular, son prácticamente inexistentes. Este trabajo tiene como propósito analizar las trayectorias de los expresidentes latinoamericanos a partir de dos estrategias metodológicas: el análisis estadístico y la revisión documental. Para ello, se elabora una clasificación tipológica, reconstruyendo las trayectorias de los expresidentes de dieciocho países latinoamericanos desde las transiciones a la democracia hasta el presente (1978-2018), partiendo de la premisa de que los expresidentes latinoamericanos tienden a seguir su carrera política al dejar el cargo. Si bien hay determinados rasgos objetivables que diferencian a los expresidentes que se desempeñan en el sector público o abandonan la vida pública de aquellos que lo hacen en la esfera privada, esta última no representa un impedimento para seguir teniendo presencia política.
Contexto, justicia y universalidad en la filosofía política actual. Algunas críticas y aportes a la teoría de la justicia de Habermas
Authors: Salas Astrain Ricardo Florentino
Published: June 2019

A partir del giro pragmático de la filosofía contemporánea, las teorías de la justicia han avanzado en una serie de temas relativos a la justificación de los principios de justicia y que presuponen el nexo entre universalidad y particularidad histórico-cultural. Se critica la apelación únicamente a los principios racionales y abstractos, ya que se dejan de lado las virtualidades de los contextos que aglutinan las experiencias morales de pueblos, comunidades de vida y movimientos sociales en una sociedad globalizada. Si las teorías discursivas de la justicia requieren articular tal nexo la cuestión teórica es encontrar la veta que permita vincular procedimentalismo y substantividad histórica. Por lo tanto, ¿en qué sentido la teoría habermasiana de la justicia exigiría un replanteamiento teórico explícito acerca de la capacidad normativa del contexto? La hipótesis propuesta aquí revela la respuesta de Rainer Forst y Mark Hunyadi, ya que estos replantean una teoría contextual de la justicia y reelaboran una noción filosófica de contexto que demuestra nuevas posibilidades y limitaciones de la teoría discursiva de la justicia.
Tracking Induced Seismicity in the Fort Worth Basin: A Summary of the 2008–2018 North Texas Earthquake Study Catalog
Authors: Quinones Louis , DeShon Heather R. , Jeong SeongJu , Ogwari Paul , Sufri Oner , Holt Monique M. , Kwong Kevin B.
Published: June 2019

Since 2008, earthquake sequences within the Fort Worth basin (FWB), north Texas, have been linked to wastewater disposal activities related to unconventional shale‐gas production. The North Texas Earthquake Study (NTXES) catalog (2008–2018), described and included herein, uses a combination of local and regional seismic networks to track significant seismic sequences in the basin. The FWB earthquakes occur along discrete faults that are relatively far apart (>30  km), allowing for more detailed study of individual sequence development. The three largest sequences (magnitude 3.6+) are monitored by local seismic networks (<15  km epicentral distances), whereas basinwide seismicity outside these three sequences is monitored using regional distance stations. A regional 1D velocity model for the FWB reflects basinwide well log, receiver function, and regional crustal structure studies and is modified for the larger individual earthquake sequences using local well‐log and geology data. Here, we present an mb_Lg relationship appropriate for Texas and a basin‐specific ML relationship, both calculated using attenuation curves developed with the NTXES catalog. Analysis of the catalog reveals that the earthquakes generally occur within the Precambrian basement formation along steeply dipping normal faults, and although overall seismicity rates have decreased since 2016, new faults have become active. Between 2006 and 2018, more than 2 billion barrels of fluids were injected into the Ellenburger formation within the FWB. We observe strong spatial and temporal correlations between the earthquake locations and wastewater disposal well locations and injection volumes, implying that fluid injection activities may be the main driving force of seismicity in the basin. In addition, we observe seismicity occurring at greater distances from injection wells (>10  km) over time, implying that far‐field stress changes associated with fluid injection activities may be an important component to understanding the seismic hazard of induced seismicity sequences.
Regionalne uwarunkowania rozwoju rzeźby terenu Lublina
Authors: Superson Józef , Demczuk Piotr , Reder Jan
Published: June 2019

Celem opracowania było określenie naturalnych i antropogenicznych uwarunkowań rozwoju rzeźby terenu w granicach współczesnego Lublina. Obszar ten obejmuje fragmenty trzech mezoregionów Wyżyny Lubelskiej: Płaskowyżu Nałęczowskiego, Płaskowyżu Łuszczowskiego i Płaskowyżu Bełżyckiego. Dla Płaskowyżu Nałęczowskiego charakterystyczna jest „rzeźba lessowa” i gęsta sieć suchych dolin, zaś dla pozostałych mezoregionów zrównanie wierzchowinowe, denudacyjne powierzchnie podstokowe oraz formy krasowe. Rzeźba lessowa jest młoda, gdyż rozwijała się w zlodowaceniu wisły i w holocenie pod wpływem procesów eolicznych i denudacyjnych, zaś zrównanie wierzchowinowe i powierzchnie podstokowe powstawały w pliocenie i eoplejstocenie. Współczesna sieć dolin powstawała i była przekształcana w plejstocenie. Kierunkowość osi tych dolin jest uzależniona od spękań ciosowych i uskokowych skał paleogeńskich i kredowych. Aktywność człowieka była jednym z ważniejszych czynników. Rozwój osadnictwa i uprawy roli warunkowały powstawanie antropogenicznych form terenu. W związku z powyższym czynnikami wpływającymi na rozwój rzeźby tereny Lublina były: struktura i tekstura skał powierzchniowych, ruchy tektoniczne, zmienne warunki klimatyczne oraz działalność człowieka.
Problemy rozwoju lokalnego Starej Kalinowszczyzny (Lublin)
Authors: Samojedna Edyta , Janicki Grzegorz
Published: June 2019

W pracy przedstawiono uwarunkowania rozwoju lokalnego oraz ocenę obecnej sytuacji społeczno-ekonomicznej i funkcjonalno-przestrzennej historycznej części dzielnicy Kalinowszczyzna w Lublinie, nazywanej potocznie Starą Kalinowszczyzną. Zasadniczym celem badań było wyznaczenie głównych kierunków rozwoju tego obszaru problemowego. W wyniku przeprowadzonych badań (inwentaryzacja urbanistyczna, analiza dokumentów strategicznych i planistycznych oraz badania ankietowe i analiza SWOT) zaproponowano istotne dla dalszego rozwoju badanego obszaru działania, takie jak: aktywizacja mieszkańców, poprawa stanu zagospodarowania oraz wykorzystanie potencjału dziedzictwa kulturowego. Stara Kalinowszczyzna posiada niezagospodarowany potencjał wynikający z nagromadzenia obiektów historycznych, zabytków oraz atrakcyjnych ekspozycji widokowych na Stare Miasto.
Cartographic modelling of the urban quality of life – aspect of green areas in the City of Lublin (Poland)
Authors: Krukowski Mirosław
Published: June 2019

Prace z zakresu rozmieszczenia i ewaluacji zieleni w mieście w kontekście potrzeb mieszkańców mają duże znaczenie w związku z postępującym rozwojem przestrzennym miast i presją na wykorzystanie każdego wolnego kawałka gruntu. Szerzej możemy mówić tu o jakości życia w mieście, biorąc pod uwagę komponent zieleni. Warto również zwrócić uwagę, że analiza przestrzenna jakości życia w mieści jest trudnym i złożonym zagadnieniem, dlatego też rzadko jest przeprowadzana w obrębie miast. Typowe jest natomiast analizowanie jakości życia w odniesieniu do miasta jako całości, co pozwala na analizę porównawczą pomiędzy miastami. Nie daje to jednak możliwości analizy strukturalnej wewnątrz miast.

Celem pracy było zaproponowanie możliwości wykorzystania zdjęć satelitarnych z satelity Ikonos 2 oraz technik związanych z GIS dla potrzeb analizy terenów zielonych ośrodków miejskich oraz modelowania jakości życia w mieście. W artykule przedstawiono sposób integracji danych pochodzących z rejestracji teledetekcyjnej, dotyczących roślinności, oraz danych dotyczących rozmieszczenia ludności w mieście. Modelowanie kartografi czne doprowadziło do określenia rozmieszczenia przestrzennego wskaźnika jakości życia w mieście w aspekcie zieleni. W związku z tym wyniki mogą być przydatnym narzędziem w monitorowaniu i planowaniu przestrzennym.

Na podstawie zobrazowania satelitarnego Ikonos 2 wygenerowano rozkład przestrzenny znormalizowanego wskaźnika zieleni (NDVI). Było to podstawą wydzielenia dwóch klas zieleni: zieleni wysokiej (zbiorowisk drzewiastych i krzewiastych) oraz zieleni niskiej (głównie roślinność trawiasta). Aby określić wskaźnik terenów z zielenią przypadających na mieszkańców, niezbędne było wykorzystanie informacji o rozmieszczeniu ludności, którą to opracowano w formie mapy kropkowej. Określenie cząstkowego wskaźnika jakości życia przeprowadzono w polach podstawowych, a następnie zwizualizowano, używając metody izoliniowej. Proponowana metodyka dała w rezultacie przestrzenny obraz zjawiska, który stał się podstawą analizy rozmieszczenia terenów z roślinnością w odniesieniu do miejsca zamieszkania ludności Lublina.
Influencia de productos de la hidrólisis en el desempeño de un vehículo que opera con gasolina y gas natural en la altura
Authors: Moreno Gamboa Faustino , Floréz Serrano Elkin Gregorio , Moreno Conteras Gonzalo Guillermo
Published: June 2019

Introducción: En la actualidad existe un gran interés en la reducción en el uso de combustibles fósiles por la variación de los precios y los fuertes controles normativos, por lo cual se buscan métodos para disminuir el consumo de combustible en los motores de combustión interna, tales como el suministro de productos de la hidrólisis del agua en la admisión del motor.

Objetivo: El objetivo del este trabajo es presentar los resultados de una metodología experimental aplicada para estimar el desempeño mecánico y ambiental de un vehículo alimentado con gasolina y gas natural, específicamente cuando al motor se le suministran productos resultantes de la hidrólisis del agua.

Metodología: Para el suministro de dichos productos al vehículo se le instalo un dispositivo hidrólisis externo, y el vehículo fue instrumentado con una quinta rueda, sensores de temperatura y velocidad de revoluciones del motor, para realizar pruebas de aceleración en una carretera plana y una carretera con pendiente longitudinal. Adicionalmente, se realizaron pruebas de torque y potencia con dinamómetro de chasis y pruebas de emisiones contaminantes y de consumo de combustible. Las pruebas fueron realizadas en las afueras de la ciudad de Bogotá DC - Colombia, ubicada a 2650 m sobre el nivel del mar.

Resultados: Los resultados muestran que los productos de la hidrólisis no mejoran el desempeño mecánico del vehículo, ya que aumentan el tiempo para llegada a las velocidades definidas en las pruebas de aceleración hasta en un 18% en el motor con gasolina y 7% en el motor con gas natural, mientras que el torque y la potencia del motor se incrementa alrededor del 1%. Por otro lado, los resultados de las pruebas de emisiones contaminantes indican que el consumo de combustible se reduce aproximadamente en un 7%.

Conclusiones: Los resultados indican que el desempeño del vehículo no mejora, aunque el consumo de combustible disminuye, el desempeño ambiental no disminuye.
Influence of moisture content on the mechanical properties of Guadua Culms
Authors: Sánchez Cruz Martha Lissette , Morales Luz Yolanda
Published: June 2019

Introduction: Due to its earthquake behavior, the use of bamboo for structural purposes has increased in the latest decades, mainly in South American countries, in which, their employment, has been standardized in the design bases. However, for the efficient use of bamboo as a construction material, it is necessary to consider that being a natural material, volumetric variations can occur, especially when the material is subjected to changes in moisture between the saturation point of the fibers and the equilibrium moisture.
Objectives: The objective of this paper is to evaluate the influence of the moisture content on the mechanical properties of elements extracted from the bottom, middle, and top of bamboo culms.
Methodology: For the study, research is carried out with a quantitative approach. The experimental characterization was focused on the determination of compression, bending, and shear strength, according to the recommendations of the Colombian Technical Standards.
Results: Results allow verifying that bamboo elements are susceptible to vary their strength and stiffness depending on the equilibrium moisture of the region to be considered in the structural design.
Conclusions: The influence of the moisture content on the mechanical properties of elements extracted from the bottom, middle, and top of bamboo culms was evaluated. The experimental characterization was focused on the determination of compression, bending, and shear strength. From the results, it is possible to verify that an increase in the moisture content reduces the mechanical strength of the material. The decrease in the values of maximum stress is more significant for moisture values between 12 % and the saturation point of the fibers and is accompanied by important dimensional changes that impair the mechanical performance of the material. The results show that above the point of saturation of the fibers the mechanical behavior of the culms is not modified.
Balanceo de líneas de producción en la industria farmacéutica mediante Programación por metas
Authors: Orejuela Cabrera Juan Pablo , Flórez González Andrés
Published: June 2019

Introducción: En una línea de fabricación es muy importante que los tiempos de ciclo de las diferentes estaciones estén balanceados y que sean bajos, ya que esto permite disminuir los inventarios de producto en proceso, sin embargo, hacer esto conlleva a aumentar el número de estaciones, lo que no es favorable ya que eleva los costos fijos asociados a las estaciones, en tal sentido es necesario definir estrategias que permitan lograr un equilibrio entre estos requerimientos.

Objetivo: En este artículo se propone la formulación de un modelo para el balanceo de línea, utilizando la técnica de programación multiobjetivo por metas, aplicada a la industria farmacéutica con el fin de minimizar el número de estaciones, minimizar el tiempo de ciclo y el inventario en proceso.

Metodología: Se emplea la programación por metas para abordar un modelo de balance de línea, que considera al mismo tiempo la asignación de múltiples estaciones una operación y la asignación de múltiples operaciones a una estación.

Resultados: Se logra una reducción significativa del tiempo ciclo y del tiempo ocioso a costos mínimos, además se presenta una comparación entre el modelo determinístico y estocástico.

Conclusiones: A través de esta implementación del modelo en LINGO, se validó el cumplimiento de las restricciones planteadas, la precedencia de las operaciones y el buen funcionamiento del modelo mediante las soluciones óptimas obtenidas. La simulación, es una herramienta que permite ilustrar la complejidad de las operaciones del sistema de producción, las cuales requieren como en nuestro caso de una modelación más ajustada a la realidad para comprender el comportamiento del proceso y evaluar diferentes estrategias
Kısıntılı Sulama Koşullarında Bazı Pamuk (Gossypium hirsutum L.) Genotiplerinin Kuraklık Toleransının Belirlenmesi
Authors: KETEN Mualla , DEĞİRMENCİ Hasan , GÜVERCİN Ramazan Şadet
Published: June 2019

Bu çalışmanın amacı, sulama suyunda belirli oranlarda
kısıntı yaparak suyu daha verimli kullanmak ve kuraklığa toleransı yüksek pamuk
genotiplerini belirlemektir. Çalışmada 7 farklı genotip (Aday 1, Aday 2, Aday 3, Aday 4, Aday 5, Aday 6 ve
Aday 7) ve Stonville 468 pamuk çeşidi kullanılmıştır. Kuraklık
toleransını belirlemek için Stres Duyarlılık İndeksi (SSI), Verim Kararlılık
İndeksi (YSI), Verim Azalma Oranı (Yr), Verim İndeksi (YI), Toleranslılık
İndeksi (TOL), Ortalama Verimlilik (MP), Harmonik Ortalama (HM), Geometrik
Ortalama Verimliliği (GMP), Modifiye Edilmiş Stres Toleranslılık İndeksleri (K1STI-potansiyel
verim değerlerinden elde edilerek hesaplanan indeks, K2STI- stres
koşullarında elde edilen verim değerleriyle hesaplanan indeks) ve Stres
Toleranslılık İndeksi (STI) kullanılmıştır. HM,
MP, GMP, STI, K1STI indekslerinin stresli ve stressiz koşullarda
uygulanabilirliği Aday 4 genotipinde görülmüştür. En yüksek MP değeri,
Aday 6 genotipinde bulunmuştur.. En düşük
SSI indeksi Aday 2’de bulunmuş ve kuraklığa
toleranslı olduğunu göstermiştir. Ortalama karşılaştırma (LSD), temel
bileşenler analizi (PCA) ve kümeleme (Cluster) analizi sonucunda Aday 2
genotipinin kuraklığa yüksek oranda toleranslı olduğu görülmüştür.
Management of medical record in installation of inpatient regional public hospital Batara Guru Belopa
Authors: . Musriati , . Indar , Abdullah Muhammad Tahir
Published: June 2019

Background: This research is motivated by the high number of incompleteness of filling in the patient's medical record file in the inpatient installation, which is 30-35% in Regional Public Hospital Batara Guru Belopa.Methods: The research method is qualitative using the phenomenology approach. Determination of informants using purposive sampling method and obtained as many as eighteen informants. Data collection in the form of in-depth interviews, document review and observation. The validity of the data is done by triangulation and credibility test.Results: Management of medical records completeness seen from human resources who still need additional staffin the central part of the hospitalization by looking at the large number of patients and workload of the officers, doctors rarely fill in the full medical record sheets due to negligence of doctors due to other activities or in a hurry. Management of medical records completeness viewed from the procedure, there are still officers in the inpatient department who do not know the flow of exit and entry of the medical record file to the inpatient installation. The management of medical record completeness is seen from the information, implementation of hospital policy regarding the completeness of filling in medical record is not maximal because medical record file is slowly completed and returned to the medical record section.Conclusions: The hospital should be conducted a routine evaluation related to the completeness of the medical record and activated the hospital management information system (HMIS).
Self perceived visual health among women aged 18-59 years in a rural area of Greater Noida, Uttar Pradesh: a cross sectional study
Authors: Pawaiya Amit Singh , Jain Ieshitva , Juneja Khushboo , Dayanithi Mithila , Nagesh S.
Published: June 2019

Background: Visual health is both visual function and individual’s perception of vision. This study was conducted to estimate visual function and individual’s perception of vision and to understand the impact of sociodemographic factors and treatment seeking behaviour for eye morbidities among women in our society. The aim of the study was to obtain visual acuity scores and the perceived visual function score and analyse both objective and subjective visual health.Methods: A community based cross-sectional study was conducted among 182 women aged 18-59 years residing in rural practice area of School of Medical Sciences and Research, Sharda University, Greater Noida.Results: The most common problem in the study group was moderate visual impairment (23.1%), followed by severe visual impairment (8.2%) and blindness (1%). The common causes being uncorrected refractive errors followed by cataract. Visual impairment was maximum among 49-59 years (47.46%), illiterate (54.24%) and in lower socio-economic status (54.24%).Conclusions: An intersectoral approach involving the PRI, ASHA/ANM at all levels of the health system may be appropriate. Strategies involving the communities, schools, colleges, workplaces and shifting to preventive and curative approach instead of only curative approach may help to create more awareness about common avoidable causes of blindness namely refractive errors and cataract. Comprehensive eye care services from early screening to treatment need to be made accessible, affordable and available at all levels of health system irrespective of gender, literacy, age and socioeconomic status to improve visual health and thus quality of life.
Los wixáritari con diabetes mellitus y sus vínculos con la enfermedad: desde la aparición del síntoma hasta una primera explicación
Authors: Quiñonez Tapia Francisco , Vargas Garduño Maria De Lourdes , Soltero Avelar Rubén
Published: June 2019

Se recuperó el proceso de construcción del esquema conceptual, referencial y operativo (ECRO) de los wixáritari sobre la diabetes mellitus tipo 2 en una comunidad de Jalisco, México, desde la aparición del primer síntoma hasta una posible explicación de la enfermedad. Se realizó un estudio cualitativo con el método fenomenológico a partir de entrevistas en profundidad para la recolección de información. Se contó con siete participantes. Los datos se procesaron con el método de análisis del discurso de Bajtín, a partir de la teoría del vínculo de Pichon-Rivière. Se encontró que el wixárika con diabetes construye su esquema conceptual, referencial y operativo durante un periodo de tres a cinco años, a partir de tres vínculos: los síntomas en el cuerpo, la explicación del wixárika a sus síntomas, y las explicaciones del espacio social a su enfermedad. El wixárika construye una serie de vínculos y un esquema conceptual, referencial y operativo que le permite validar una explicación de lo que experimenta en el cuerpo, en medio de un proceso confrontativo y doloroso, lleno de afirmaciones y negaciones hasta llegar a una síntesis, que le permita comprender su situación e instrumentar una conducta para el cuidado de su salud.
Exploring the Potential of online English Websites In Teaching English To Non-Linguistic Major Students: BreakingNewsEnglish As Example
Authors: Boulahnane Saad , Abramova Viktoriia S.
Published: June 2019

The Internet has captured the attention of teachers and language instructors from all over the world due to its online teaching materials. The Internet-based material has allowed distance-learning projects. This article explores the potential role of EFL websites as a supplement in classroom instruction. As an example, an English-language based news website, www.breakingnewsenglish.com, has been designed to teach English to non-linguistic major students. The authors of this article offer methodological recommendations on using Internet-based materials, describe stages of work with authentic texts, and note linguistic and communicative skills developed in the course of work. The recommendations have been formed based on teachers and students’ descriptions of the materials provided by the website in question. This descriptive article will hopefully contribute to the literature on online teaching and learning materials, particularly in the field of EFL.Keywords: foreign languages, online educational resource, news website, communicative skills
An Investigation of Factors Contributing to Foreign Language Speaking Anxiety among International Students in Indonesian Universities
Authors: Mulyono Herri
Published: June 2019

This small-scale study aimed to factors that contribute to foreign language speaking anxiety among international tertiary students in Indonesia. The study drew on a qualitative method where seven International students studying at three universities in Indonesia were interviewed. The collected data then were transcribed and analyzed using a thematic analysis. The result revealed that the student participants experienced both facilitative and debilitative speaking anxiety when interacting with their peers during classroom learning. Language barriers, negative attitudes, intercultural communication apprehension were identified to provoke FLSA among the students. More importantly, these three factors also contributed to students’ feeling of speaking anxiety in their daily communication. Keywords: English as a Foreign Language (EFL), Foreign Language Speaking Anxiety (FLSA), Facilitative and Debilitative Speaking Anxietyfrstractg the shrformance in thes
Clareamento dental em fumantes: uma revisão integrativa
Authors: Prudencio Anthea , Prado Maira , Pereira Gisele , Borges Marcio
Published: June 2019

Objetivo: realizar uma revisão integrativa da literatura sobre a indicação do clareamento dental em pacientes fumantes, com o uso de peróxidos como agente clareador, em relação à segurança do tratamento, a efetividade, a sensibilidade dentária, seu efeito na estrutura dental e a longevidade do tratamento. Por fim, o efeito de cremes dentais clareadores em pacientes fumantes foi buscado. Material e Método: foram realizadas buscas nas bases de dados PubMed, LILACS e Scopus, utilizando as palavras-chave em associação: (Bleaching OR whitening or dental bleaching) AND (smoke OR smoker OR cigarrete), em inglês e português. Os critérios de inclusão foram: artigos publicados entre 2008-2018, estudos in vitro, clínicos e revisão de literatura. Resultados: 56 artigos foram encontrados. Após análise por título, 20 artigos foram selecionados. Após leitura dos resumos, 6 artigos foram excluídos. 14 artigos foram lidos na íntegra, 6 foram excluídos de acordo com os critérios de inclusão/ exclusão e 08 artigos foram abordados nessa revisão. Conclusão: O clareamento com peróxido de carbamida 10% parece ser um método seguro em pacientes fumantes. Os peróxidos em diferentes concentrações foram efetivos no clareamento. Não houve diferença significativa entre fumantes e não fumantes em relação a sensibilidade. Os agentes clareadores não causam alterações permanentes na estrutura dentária. Em relação a longevidade, em um ano houve regressão da cor em fumantes e não fumantes e a profilaxia foi eficiente na remoção de manchas extrínsecas em pacientes fumantes, conseguindo estabilizar a cor obtida no clareamento. Os cremes dentais clareadores não foram eficazes na remoção das manchas.
Percepção sobre saúde geral e bucal em uma análise comparativa entre formandos de Odontologia, Enfermagem, Medicina e Farmácia
Authors: Ribeiro Mariana Dias Flor , Marques Letícia Côgo , Fadel Cristina Berger , De Carvalho Raquel Baroni , Pacheco Karina Tonini dos Santos
Published: June 2019

Objetivo: compreender os significados de saúde e doença, também no âmbito da saúde bucal, e analisar o impacto de diferentes formações acadêmicas. Material e Métodos: Para tanto, realizou-se um estudo exploratório junto a uma população de formandos dos cursos de Odontologia (n=25), Enfermagem (n=19), Medicina (n=24) e Farmácia (n=11) da Universidade Federal do Espírito Santo (UFES). A coleta das informações foi realizada mediante a aplicação de um questionário semiestruturado, por entrevistadores treinados. Os dados foram analisados e expressos por meio de valores descritivos, relativos e absolutos. Resultados Os resultados mostraram que 75,94% dos formandos dos quatro cursos em questão classificaram saúde de acordo com o conceito normatizado pela OMS. Ainda, a maioria dos formandos de Odontologia e Medicina afirmaram que apresentam maior grau de conhecimento e valorização de saúde, também no âmbito bucal, quando comparados aos formandos de Enfermagem e Farmácia. Entretanto, as quatro populações estudadas definem de forma semelhante o termo “saúde”, reconhecem a saúde bucal como parte integrante da saúde de forma geral, valorizam a estética dental e associam a perda dentária anterior com diminuição de sua qualidade de vida. Conclusão: Os formandos dos cursos da área da saúde em muitos aspectos apresentam visão semelhante quanto ao processo saúde-doença e valorizam a estética dental.
Heavy metals, biomarkers of oxidative stress and changes in sperm function: A case-control study
Authors: Chinyere Nsonwu-Anyanwu Augusta , Raymond Ekong Eworo , Jeremiah Offor Sunday , Francis Awusha Ogar , Chukwuma Orji Oliver , Idiongo Umoh Ediang , Aleruchim Owhorji Jennifer , Rowland Emetonjor Faith , Adanna Opara Usoro Chinyere
Published: June 2019

Background: Heavy metal-induced oxidative stress has been implicated in abnormal sperm functions and male infertility.
Objective: Serum and seminal levels of heavy metals and biomarkers of oxidative stress were compared in fertile and infertile men.
Materials and Methods: A total of 130 men aged 20–60 yr comprising 30 azoospermic, 50 oligozoospermic, and 50 normozoospermic men were studied. Semen analysis was done by world health organization guidelines, biomarkers of oxidative stress (total antioxidant capacity (TAC), total plasma peroxidase (TPP), oxidative stress index (OSI), vitamin C (vit C) and nitric oxide (NO)) and fructose by colorimetry and serum and seminal heavy metals (zinc (Zn), selenium (Se), cadmium (Cd) and lead (Pb)) by atomic absorption spectrophotometry.
Results: Azoospermic and oligozoospermic men had higher serum and seminal peroxides (TPP, p = 0.00), higher serum heavy metals (Zn, Se, Pb, and Cd (p = 0.01)) and lower sperm concentration, %motility, serum and seminal antioxidants (vit C, TAC, NO, GSH (p = 0.01)) compared to normozoospermic men. Higher seminal peroxides (TPP, p = 0.001), heavy metals (Pb and Cd (p = 0.03)) and lower sperm concentration, %motility, and seminal antioxidants (TAC and NO (p = 0.00)) were also observed in azoospermic men compared to oligozoospermic men. Negative correlations were observed between seminal fructose and seminal vit C (r = -0.535, p = 0.015), GSH (r =-0.734, p = 0.000), NO (r = -0.714, p = 0.000), Zn (r = -0.774, p = 0.000) and Se (r = -0.719, p = 0.000) only in azoospermic men.
Conclusion: Elevated heavy metal levels, increased lipid peroxidation and antioxidant depletion is associated with abnormal sperm functions in men studied.
Key words: Heavy metals, Antioxidants, Lipid peroxidation, Oxidative stress, Sperm function.