bluuebunny/crossref_metadata_2025 huggingface dataset:
FLOW MEDIATED DILATION AND CAROTID INTIMA MEDIA THICKNESS IN PATIENTS WITH CHRONIC GASTRITIS ASSOCIATED WITH HELICOBACTER PYLORI INFECTION
Authors: JUDAKI Arezo , NOROZI Siros , AHMADI Mohammad Reza Hafezi , GHAVAM Samira Mis , ASADOLLAHI Khairollah , RAHMANI Asghar
Published: September 2017

ABSTRACT BACKGROUND: Endothelial dysfunction is one of the early stages of vascular diseases. OBJECTIVE: The aim of this study was to investigate the endothelial dysfunction markers in patients with chronic gastritis associated with Helicobacter pylori (H. pylori) infection. METHODS: By a cross sectional study, basic and clinical information of 120 participants (40 patients with positive H. pylori infection, 40 patients with negative H. pylori infection and 40 healthy people) were analyzed. Carotid intima media thickness and ﬂow-mediated dilation levels were measured in all patients and controls. Soluble vascular cell adhesion molecule-1 (sVCAM-1) and intercellular adhesion molecule-1 (ICAM-1) were measured with Elisa for all subjects. IgG level was assessed in chronic gastritis patients. RESULTS: The ﬂow-mediated dilation level in patients with positive H. pylori infection (0.17%±0.09) was significantly lower than those with negative H. pylori infection (0.21% ±0.10, P<0.05) and compared to the control group (0.27% ±0.11, P<0.05). Carotid intima media thickness level in patients with positive H. pylori infection (0.58±0.13 mm) was significantly higher than those with negative H. pylori infection (0.48±0.32 mm, P<0.05) and compared to the control group (0.36±0.44mm, P<0.05). The mean level of sICAM-1 in positive H. pylori infection group (352.16±7.54 pg/mL) was higher than negative H. pylori infection group (332.64±8.75 pg/mL =0.75) and compared to the control group (236.32±12.43 pg/mL, P<0.05). A direct relationship was revealed between ﬂow-mediated dilation and carotid intima media thickness changes and between sICAM-1 and sVCAM-1 associated with the level of H. pylori IgG in chronic gastritis. CONCLUSION: The levels of ﬂow-mediated dilation, carotid intima media thickness and sICAM-1 were higher among patients with positive H. pylori infection. Patients with chronic gastritis associated with H. pylori infection are at risk of endothelial dysfunction due to ﬂow-mediated dilation and carotid intima media thickness abnormalities and increased level of sICAM-1 and sVCAM-1.
Caracterização epidemiológica e fatores de risco associados à infecção por lentivírus de pequenos ruminantes na região do semiárido paraibano, Nordeste do Brasil
Authors: Guilherme Ricardo F. , Azevedo Sérgio S. , Higino Severino S.S. , Alves Francisco S.F. , Santiago Lauana B. , Lima Ana M.C. , Pinheiro Raymundo R. , Alves Clebert J.
Published: September 2017

RESUMO: O objetivo deste estudo foi determinar a soroprevalência de lentivírus de pequenos ruminantes (LVPR) e identificar os fatores de risco para a ocorrência de caprinos e ovinos soropositivos no semiárido do Estado da Paraíba. Foram utilizados 1.733 animais, sendo 1.274 caprinos procedentes de 62 Unidades de Produção (UPs) e 459 ovinos provenientes de 32 UPs. Para o diagnóstico sorológico da infecção por lentivírus foi utilizado o teste de imunodifusão em gel de ágar (IDGA). Dos 1.274 caprinos analisados 15 (1,18%) foram soropositivos, enquanto que todos os 459 ovinos foram soronegativos. Das 62 propriedades caprinas analisadas oito (12,9%) apresentaram pelo menos um animal soropositivo. Os fatores de risco para a ocorrência de caprinos soropositivos foram área da propriedade (odds ratio = 3,28; p = 0,044), ausência de capacitação dos produtores (odds ratio = 8,29; p = 0,042) e uso de monta natural não controlada (odds ratio = 6,78; p = 0,012). Conclui-se que a infecção por lentivírus de pequenos ruminantes, demonstrada pela detecção de anticorpos, está disseminada em rebanhos caprinos do semiárido paraibano, e sugere-se o incentivo à capacitação contínua dos produtores, manutenção de reprodutores negativos ao LVPR e utilização de inseminação artificial com o intuito de evitar o contato físico entre macho e fêmeas.
Rickettsia amblyommii associado a roedores e marsupiais nativos da Estação Experimental Rafael Fernandes da UFERSA, Rio Grande do Norte
Authors: Paiva Kaliane A.R. , Pereira Josivania S. , Fonseca Zuliete A.A.S. , Coelho Wesley A.C. , Teixeira Guilherme M.S.L. , Oliveira Moacir F. de , Ahid Sílvia M.M.
Published: September 2017

RESUMO: O presente estudo teve como objetivo registrar a ocorrência de Rickettsia sp. em roedores e marsupiais nativos da Estação Experimental Rafael Fernandes da UFERSA, Mossoró/RN. O trabalho consistiu em uma pesquisa de campo, com roedores e marsupiais silvestres, com os dados expressos em frequência simples e porcentagem através do programa estatístico IBM SPSS (Armonk, NY: IBM Corp.), versão 22.0. Coletaram-se amostras de plasma sanguíneo de marsupiais (36) e de roedores (5). Destes, 64 continham Amblyomma auricularium, 7 Amblyomma parvum e 12 Amblyomma sp. As amostras de plasma sanguíneo foram analisadas através da técnica de Reação de Imunofluorescência Indireta. Exemplares de A. auricularium e a A. parvum foram macerados e submetidos a Técnica de Reação em Cadeia da Polimerase. Das amostras de plasma testadas, 17,60% apresentaram soropositividade para Rickettsia amblyommii. Oito exemplares de A. auricularium estavam positivos para R. amblyommii na análise de fragmentos dos genes gltA (350 bp) e ompA (587 pb), com 100% de similaridade com Candidatus R. amblyommii estirpe Bahia e AaPE, correspondendo a uma baixa circulação do agente dentre os vetores e hospedeiros. Esta pesquisa registra pela primeira vez a ocorrência de R. amblyommii em marsupiais Gracilinanus agilis e Monodelphis domestica pertencentes a Família Didelphidae, e roedores das Famílias Echimyidae e Cricetidae, cujas espécies foram Thrichomys sp. e Wiedomys sp., respectivamente, em Mossoró, estado do Rio Grande do Norte.
Bem-estar dos cordeiros submetidos ao transporte rodoviário e avaliação das carcaças e carnes
Authors: Silva Fredson V. , Borges Iran , Lana Ângela M.Q. , Borges Ana L.C.C. , Sá Hemilly C.M. , Silva Vandenberg L. , Alves Leonardo R.N. , Souza Fernando A.
Published: September 2017

RESUMO: Objetivou-se avaliar o grau de bem-estar dos cordeiros submetidos ao transporte rodoviário e suas carcaças e carnes. Para isto, fez-se a avaliação dos parâmetros comportamentais durante o transporte, dos parâmetros fisiológicos após o desembarque e antes do abate e a caracterização das carcaças e carnes dos cordeiros. Realizaram-se quatro transportes rodoviários com durações crescentes (1h45min, 3h52min, 7h30min e 10h30min), cada transporte continha vinte cordeiros. O peso corporal dos animais foi de 36,64±2,13 kg antes do transporte. Os cordeiros foram abatidos 15 horas após o desembarque. Os cordeiros deitaram por pouco tempo (mediana igual à zero a cada 20min) em jornadas menores que 3h52min. O número de eventos potencialmente traumáticos foi baixo (mediana próxima a zero, a cada 20min) para quaisquer durações dos transportes. As concentrações de adrenalina e cortisol, bem como os metabólitos que são controlados por eles, foram semelhantes entre os tratamentos. Contudo, a massa das carcaças diminuiu e as concentrações de creatina quinase aumentaram linearmente quando os transportes foram mais longos, o que podem revelar diminuição do bem-estar. A qualidade da carne de cordeiros não sofreu interferências da duração dos transportes.
Trophic quality of waters in the Patos Lagoon estuary: a comparison between its margins and the port channel located in Rio Grande, RS, Brazil
Authors: Marreto Rafela Neves , Baumgarten Maria da Graça Zepka , Wallner-Kersanach Mônica
Published: September 2017

Abstract: Aim This study aimed to evaluate the Trophic State Index (TSI) at the margin and in the channel of the Patos Lagoon estuary, considering different hydrological conditions. Methods Surface and bottom water samples were collected in three sites in the channel (margin and center) and in two sites at the Saco da Mangueira in different hydrological conditions in 2011. Results Waters at the Saco da Mangueira are very contaminated by phosphate and nitrogenous compounds. The TSI classifies these waters as being hypereutrophic, the consequence of both the release of effluents which were poorly treated and the low water flow in the inlet. Contamination was mild at the margins of the channel, where waters were classified as being eutrophic and mesotrophic. Trophic balance (mesotrophic waters - oligotrophic surface - bottom) was found in the center of the channel as a consequence of strong water flow and dilution of contaminants coming from the margins. Conclusions Spatial variation in the TSI value enabled clear distinction to be observed between the areas at the margins and in the channel, because it reflected the punctual presence of anthropogenic input in the marginal waters, mainly in the Saco da Mangueira. Effluent treatment must be required in order to control severe trophic imbalance in the waters at the margins of the city. Variations of the proposed index are a useful tool to identify sources of phosphate compounds in other aquatic environments.
Integrated analysis of water quality from two rivers used for public supply in southern Brazil
Authors: Chagas Flávia Bernardo , Rutkoski Camila Fátima , Bieniek Gregori Betiato , Vargas Gean Delise Leal Pasquali , Hartmann Paulo Afonso , Hartmann Marília Teresinha
Published: September 2017

Abstract: Aim This study aimed to evaluate the water quality of streams that are used for public supply, through an integrated analysis using a biotic index, as well as physicochemical and microbiological parameters. Methods The data were obtained monthly, from November 2014 to April 2015, at eight locations in two rivers in the south of Brazil. The landscape is predominantly rural, with the occurrence of small reforested areas, as well as yerba mate and grape cultivations. Macroinvertebrate samples were collected monthly using a Surber sampler. Water temperature and dissolved oxygen concentration were measured in the field using a portable oximeter. The following parameters were measured in the laboratory: pH, Turbidity, BOD, Conductivity and Nitrate. Results The evaluation carried out in the rivers revealed good water quality, but some sample sites presented reduced water quality. The waters of the Leãozinho River were classified as doubtful at site 1 and as good at sites 2, 3 and 4. Ligeirinho River presented an acceptable rating at sites 1 and 4 and was classified as good at sites 2 and 3. The BMWP’ index was significantly correlated with the abundance of macroinvertebrates, EPT richness and BOD. The abundance and richness of macroinvertebrates in Leãozinho and Ligeirinho Rivers were associated with the physical, chemical and microbiological parameters. Conclusion This study reinforces the importance of biomonitoring in the evaluation of water quality for human consumption, considering that environmental management and monitoring practices should integrate physicochemical, microbiological and biological parameters.
Educar en comunicación audiovisual: un reto para la Cuba “actualizada”
Authors: Morales Alfonso Liudmila , Landaburo Sánchez Liosday
Published: September 2017

El artículo analiza la pertinencia de la educación en comunicación audiovisual en Cuba, cuando la actualización del modelo económico y social deviene prioridad para el Gobierno. El “aislamiento selectivo” que, por décadas, favoreció la exclusividad de la oferta audiovisual concentrada en los medios de comunicación estatales sufre un embate a partir de 2008, con el auge del “paquete”, alternativa informal de distribución de contenidos. Mediante esta las personas consumen los audiovisuales de factura extranjera de su preferencia, en los horarios que elijan. Pero ante ese cambio en los patrones de consumo audiovisual, admitido por discursos oficiales y la prensa, la estrategia gubernamental privilegia alternativas proteccionistas a lo “banal”, en lugar de asumir responsabilidades formales para el empoderamiento de la ciudadanía.
Revolución Netflix: desafíos para la industria audiovisual
Authors: Heredia Ruiz Veronica
Published: September 2017

Netflix ha transformado profundamente la industria del cine y la televisión en el mundo. Desde su incursión como industria del entretenimiento en 1997 en EEUU, ha impactado las lógicas de producción y consumo en el sector audiovisual. Este artículo propone un análisis de Netflix desde su evolución como negocio, la creación de contenidos originales y las nuevas experiencias de consumo de los usuarios. A través de la descripción de dos producciones como House of cards y Beast of no Nation, primera serie y película propias estrenadas en la plataforma, se analiza cómo esta empresa OTT inicia una revolución que marcará tendencia en la producción de contenidos propios por la conquista de un mercado de audiencias globales.
Folkcomunicação e Estudos de Gênero: práticas de comunicação nos grupos homossexuais
Authors: Woitowicz Karina Janz , Fernandes Guilherme Moreira
Published: September 2017

En este trabajo se propone un diálogo conceptual entre la perspectiva teórica de la folkcomunicación y los estudios de género, con énfasis en la teoría queer, con el fin de discutir las prácticas de resistencia cultural operadas por grupos marginados por su condición de género. Para 'actualizar' el debate propuesto por Luiz Beltrão sobre los grupos erótico-porno, se presentan reflexiones sobre las transformaciones culturales que muestran la construcción de identidades, subvirtiendo las hegemonías acerca de la sexualidad. A partir de la recuperación de los aspectos comunicacionales que caracterizan a los grupos homosexuales, el texto establece contrapuntos entre los grupos marginados de ayer y de hoy, valorando sus prácticas de resistencia.
Un acercamiento a la legibilidad de textos relacionados con el campo de la salud
Authors: Rios Hernandez Ivan Neftali
Published: September 2017

En este artículo de revisión de tema se aborda el concepto de legibilidad y el uso de fórmulas matemáticas como método para la identificación de los niveles de dificultad de un texto con énfasis en mensajes relacionados con el campo de la salud. Se analizan algunas investigaciones relacionadas con el uso de fórmulas de legibilidad para el castellano. Se estudian las características de varias fórmulas matemáticas que han sido utilizadas para el análisis de legibilidad en mensajes y textos relacionados con el campo de la salud. Finalmente, se estudia la fórmula de legibilidad de Francisco Szigriszt Pazos, conocida como Fórmula de Perspicuidad, que ha sido validada científicamente.
Estudios visuales y estilo televisivo: porque no existen medios puramente visuales
Authors: Rocha Simone Maria
Published: September 2017

Este artículo presenta una propuesta de análisis de productos televisuales que operan en la disyunción de las dimensiones formales y culturales de este medio. Tal propósito implica tener en consideración la complejidad de la televisión, su reconocido valor cultural y la especificidad de sus productos. Para ello, tomamos como noción teórico-metodológica central el concepto de visualidad, del modo en que es presentado por la perspectiva de los visual studies.
Ciencia en diarios argentinos: temáticas y producción periodística en la prensa escrita generalista (2015)
Authors: Spina Guillermo Damián , Díaz Cecilia Beatriz
Published: September 2017

El presente artículo aborda la producción de noticias sobre ciencia en los diarios generalistas de la Argentina. Se distinguen dimensiones del estado del tratamiento periodístico en tanto temáticas, géneros y forma de producción a partir del análisis de contenido sobre una muestra de semana construida representativa del 2015. A los efectos de determinar regularidades y particularidades en el volumen y despliegue informativo se exponen resultados parciales que permiten describir las características de producción de publicaciones que hacen a la comunicación pública de la ciencia. Como hipótesis se sostiene que predominan aquellas temáticas cuya innovación científica representa un beneficio social (ejemplo: salud) y la utilización del formato noticia, que requiere menos producción informativa por parte de los medios de comunicación analizados.
Primera década de Ciespal: fundación y orientaciones de investigación
Authors: Parente Aragão Iury
Published: September 2017

Este artículo, basado en una investigación documental realizada en los archivos del Centro Internacional de Estudios Superiores de Comunicación para América Latina (Ciespal), busca describir su proceso de fundación e identificar cuáles eran las orientaciones de investigación en su primera década de trabajo (1960-1969). La investigación establece que en sus inicios Ciespal instaló como marco de su propia narrativa epistemológica los sistemas de pensamiento científicos foráneos, producto, principalmente, de la presencia de profesores invitados (especialmente de Estados Unidos y Europa). A su vez, Ciespal difundió estos conocimientos en la región través de cursos y de publicaciones.
Texto, interpretabilidad e interpretación: límites y alcances
Authors: Finol José Enrique , Finol David Enrique
Published: September 2017

El trabajo revisa brevemente algunas teorías sobre la interpretación y propone cuáles son los límites y alcances que la determinan. Se parte de contribuciones de la Semiótica (Eco, Greimas), la Hermenéutica (Ricoeur) y el Análisis Crítico del Discurso (van Dijk). Se proponen los conceptos de “interpretabilidad” y “contrato fiduciario” y se revisan experiencias analíticas recientes, para demostrar que no hay interpretaciones ilimitadas y señalar algunos instrumentos heurísticos que permitan desarrollar interpretaciones viables.
Hombres, mujeres y nación: representaciones en medios impresos durante la dictadura stronista en Paraguay (año 1959)
Authors: Orué Pozzo Aníbal , Falabella Florencia
Published: September 2017

Tomando como eje estructurante contenidos del diario El País (setiembre-diciembre, 1959) relacionados a la muerte del locutor y periodista Bernardo Aranda, el artículo discute, desde la categoría de género, las representaciones e imaginarios impulsados por dicho medio en relación a la idea de nación. A partir de la construcción de dos matrices semánticas asociadas a los temas: i) juventud y música rock and roll, y ii) disciplina y posturas viriles, el texto interpreta cómo y de qué manera específica esta construcción se manifiesta.
Selfies no Tinder: masculinidades hegemônicas como performance
Authors: Ardenghi Dutra Flora , Orellana Carlos
Published: September 2017

El artículo explora cómo las selfies promueven masculinidades hegemónicas en el ciberespacio presentadas en la aplicación más popular de relacionamiento del mundo, el Tinder, y cómo estos hombres se relacionan con el smartphone para gestionar performances masculinas a partir de la imagen de sí. Se busca comprender cómo el género y las subjetividades construyen el self por el habitus compartido entre hombres y cómo estas identidades pueden ser percibidas por la imagen en la construcción de un perfil en una aplicación móvil. A través de una etnografía multisituada se analizaron diez perfiles desde agosto de 2015 hasta el marzo de 2017. El estudio es una contribución al campo de las masculinidades y de las identidades de género atravesadas por la red online.
Espacios homosociales en el Carnaval de Barranquilla: entre la crónica literaria y la novela autobiográfica
Authors: Zurian Francisco A. , González Cueto Danny Armando
Published: September 2017

Esta investigación propone indagar sobre los espacios homosociales que ha generado el Carnaval de Barranquilla, en los que sujetos conocidos como “cigarrones”, mantienen relaciones íntimas con homosexuales, una conducta tolerada los días de las fiestas, aunque cotidianamente forma parte de la cultura de la región como lo demuestran algunas crónicas literarias, como por ejemplo Locas de Felicidad, Crónicas travestis y otros relatos (2009) de John Better. Además, existen evidencias de estas prácticas en novelas autobiográficas como El cadáver de papá (1978) o Maricones eminentes (1999) de Jaime Manrique Ardila. ¿Cómo ha sido representada esta peculiar realidad en la crónica literaria y en la ficción de la novela autobiográfica? ¿Qué características marcan dicha representación? ¿Qué evolución han tenido a lo largo del tiempo?
Análisis feminista de las propuestas poshumanas de la tecnología patriarcal
Authors: Tajahuerce Ángel Isabel , Mateos Casado Cristina , Melero Suso Rut
Published: September 2017

Este trabajo indaga en las propuestas poshumanas de la tecnología desde una perspectiva de género, en el marco de la teoría feminista de las Ciencias Sociales. Examina la nueva “articulación” de la vida a través de la tecnología, realizando un acercamiento crítico al androcentrismo en el tratamiento que los medios periodísticos y el género de ciencia ficción aplican a las cuestiones relacionadas con los avances tecnológicos y la transformación humana, desde la robótica y lo ciborg. El artículo finaliza con un análisis de la serie sueca de ciencia ficción Real Humans (2012-2014), en donde robots denominados hubots (androides) conviven a diario y se relacionan con personas humanas.
Comunicação, gênero e política no Brasil: As candidatas do Paraná na propaganda eleitoral televisiva
Authors: Quesada Tavares Camilla , Goulart Massuchin Michele
Published: September 2017

El artículo tiene como objetivo discutir cómo las mujeres se presentan en la propaganda electoral televisiva como candidatas para cargos de representación política. La comunicación en las campañas −sobre todo en la televisión− es una de las piezas clave en las disputas electorales brasileñas, al tiempo en que se busca una inclusión cada vez mayor de las mujeres en los espacios políticos. De este modo, se identifica la forma en que las candidatas a diputada federal por Paraná, cuando tienen acceso a la televisión, utilizan ese espacio de comunicación. Para ello, se analizan estrategias del discurso y los temas tratados en la publicidad. El método utilizado fue el análisis cuantitativo de contenido de 1878 segmentos de la propaganda de 2014.
Comunicación, educación y género: una perspectiva crítica para el análisis de experiencias territoriales
Authors: Sambucetti María Emilia , Actis Florencia , Spinelli Eleonora
Published: September 2017

La comunicación/educación se alía a la perspectiva de género para ampliar su reto epistemológico, sus campos sociales de implicancia y sus horizontes políticos de transformación. Tomando prestada la potencia de esta articulación emergente y la dilución de sus fronteras disciplinarias, en tanto clave para re-leer el mundo, el artículo pone en diálogo y analiza los sentidos acerca de “lo educativo” presentes en dos espacios de taller, inscriptos en contextos sociales e institucionales disímiles. En primer lugar, el Taller de Comunicación, Arte y Género en la Unidad Penitenciaria Femenina Nº8 de Los Hornos, ciudad de La Plata; en segundo lugar, la Escuela Popular de Género, en la localidad de Ensenada.
El género como representación: una lectura desde la biopolítica
Authors: Leal Reyes Carlos Alberto
Published: September 2017

El presente trabajo pretende realizar una aproximación a la categoría género desde el modelo de representación desarrollado por Teresa de Lauretis, quien reflexiona sobre los efectos de constitución del sujeto a partir de ciertos procesos discursivos donde se aterrizan dinámicas normativas que regulan las posibilidades sexuales, pero al mismo tiempo las detona multiplicándolas a partir de mecanismos prefigurados desde el lenguaje y materializados en los cuerpos. El concepto de género es leído como un espacio múltiple de reconocimiento de las diferencias, representadas como formas de acción colectiva a través de las cuales pueden cuestionarse las fórmulas aparentemente coherentes del sistema heteronormativo biopolíticamente determinado.
La década posteada. Blogs de escritores argentinos (2002-2012) (Diego Vigna)
Authors: Dema Pablo
Published: September 2017

La década posteada. Blogs de escritores argentinos (2002-2012)Diego VIGNAEditorial: Alción Editora. Córdoba, Argentina.Año: 2014Páginas: 237ISBN: 978-987-646-473-4
Periodismo convergente. Tecnología, medios y periodistas en el siglo XXI (María Elena Meneses)
Authors: Tirzo Jorge
Published: September 2017

Periodismo convergente. Tecnología, medios y periodistas en el siglo XXIMaría Elena MENESESEditorial: Porrúa. México.Año: 2011Páginas: 217ISBN: 978-607-0908-10-1
Periodismo de riesgo y catástrofe en los telediarios de las principales cadenas de televisión en España (Lozano Ascencio, Sánchez Calero & Morales Corral)
Authors: García-Jiménez Leonarda
Published: September 2017

Periodismo de riesgo y catástrofe en los telediarios de las principales cadenas de televisión en EspañaCarlos LOZANO ASCENCIO, María Luisa SÁNCHEZ CALERO y Enrique MORALES CORRALEditorial: Fragua. Madrid, España.Año: 2017Páginas: 188ISBN: 978-84-7074-768-7
Construirse para educar. Caminos de la educomunicación
Authors: Prieto Castillo Daniel
Published: September 2017

En este ensayo nos detenemos en lo que significa construirse en clave comunicacional para educar a partir de mi experiencia de los últimos 30 años en relación con propuestas de capacitación docente a colegas universitarios. Desde una recurrente idea de ‘formar’, recuperamos la memoria de Simón Rodríguez para pensar el ‘construirse’. Para lograr este camino, nos detenemos en dos conceptos desarrollados a partir del trabajo de las últimas décadas: la mediación pedagógica y el método del texto paralelo.
Comunicación y Género. Agendas y cultura de investigación
Authors: Sierra Caballero Francisco
Published: September 2017

Este número monográfico de Chasqui quiere ser un modesto ejercicio exploratorio con el que confrontar diversas preguntas para contribuir a un proceso de cambio de la Comunicología desde diferentes niveles de análisis y en relación a varios componentes comunicativos. Se hace precisa una visión totalizante; y, si cabe, aprender de las emergencias sociológicas que se observan a lo largo y ancho de América Latina y el Caribe del movimiento de mujeres, los colectivos LGTBI y minorías que afirman una forma de habitar en común en el mundo desde la diversidad y la diferencia, sin renunciar a una política de la representación propia que, hoy por hoy, los medios mainstream y, sobre todo, la academia eluden por falta de reflexividad y por renuncia a toda responsabilidad en su función mediadora como intelectuales orgánicos. Esperemos por lo mismo, con las contribuciones de este número, abrir una ventana para explorar otras posibilidades del campo.
Current Status and Future Direction of Nursing Education for Clinical Practice
Authors: Shin Sujin , Yang Eunbae B. , Hwang Eunhee , Kim Konhee , Kim Yunju , Jung Dukyoo
Published: September 2017

The quantitative expansion of nursing schools has necessitated the qualitative improvement of nursing education, which requires the development of nursing education for clinical practice. To identify strategies for strengthening the educational capacity of clinical fields and nursing schools, this study first examined the current status of nursing education for clinical practice, and then proposed several prospective directions for education. Nursing clinical practice-related studies from several Korean and international electronic databases were reviewed. Insufficient training hospitals and lack of qualified clinical training instructors were the main problems found within nursing educational resources for clinical practice, while the simple practice contents based on observation and inadequate evaluations were the main problems found in nursing educational management for clinical practice. This study suggests better standards and educational accountability for training hospitals and programs to nurture human resources for clinical practice, as well as a variety of training methods to integrate practical training courses and the expansion of formation evaluation. Based on these results, it is necessary to establish governance for nursing education for clinical practice and clarify the role and standards of each practitioner, strengthen the educational role of the hospital, and improve the system. In addition, introducing various types of education methods and strengthening evaluation standards are needed in order to enhance nursing education for clinical practice.
The Effect of Recorded Video Monitoring on Students’ Self Reflection of Patient‐Physician Interaction
Authors: Ju Misun , Hwang Jiyeong , Kim Jaemyung , Kang Jeaku
Published: September 2017

The aim of this study is to examine the effect of recorded video monitoring on students’ self-reflection after completing their clinical performance examination. Taking into account the particular cases involved in the examination, the present study utilized history-taking, physical examination, and patient education as bases for evaluating information-establishment ability, and asking, listening, understanding, explaining, and connectedness as the bases for evaluating patient-physician interaction ability. Student self-monitoring through recorded video feedback was carried out three days after completion of their clinical performance examination. Students self-evaluated their performance with a 10-point scale before and after self-monitoring. The results of this study show that students have a general tendency to lower their own self-evaluation scores after self-monitoring. Although there was not a statistically significant change of interrelationship in the information-establishment ability evaluation, there was a meaningful change of interrelationship in the patient-physician interaction ability evaluation after self-monitoring; specifically, in the case of acute lower abdominal pain, a high correlation was found (r=0.31, p=0.02) between the evaluation scores of standardized patients and students related to patient-physician interaction ability. This implies that self-monitoring enables the students to acquire a reflective viewpoint from which to evaluate their own performance. Therefore, it can be said that self-monitoring through recorded video feedback is a valuable method for students to use in reviewing their performance in patient-physician interactions.
Analysis of choroid thickness on OCT image using MATLAB v1
Authors: Yeh Chao-Yuan
Published: September 2017

This protocol describes how to use a custom written MATLAB script to analyze thickness of choroid on OCT images of both eyes.
Protocolo de extracción de PBMCs por densidad con iodioxanol v1
Authors: Johanna Toro Lily , Alberto Téllez Ramírez Germán , Carolina Henao Diana , Carlos Castaño Osorio Jhon
Published: September 2017

Procedimiento basado en la sedimentación a través de una barrera de densidad de 1,077g/ml dejando en la interfase los PBMCs.
On a Scheme of Sampling of Two Units With Inclusion With Inclusion
Authors: Senapati Sarat C. , Sahoo L.N. , Mishra G.
Published: September 2017

This paper introduces an unequal probability sampling without replacement scheme with inclusion probability proportional to size. This new scheme possesses some desirable properties with regard to ?i and ?ij , and provides a non-negative variance estimator of the Horvitz and Thompson estimator, when the values of the auxiliary variable fulfill some restrictions. On comparing the suggested scheme with some of the existing sampling schemes in respect of efficiency and stability of the variance estimator empirically, it has been observed that the performance of the scheme is satisfactory.
A Skewed Model Combining Triangular and Exponential Features: The Two-faced Distribution and its Statistical Properties
Authors: Brizzi Maurizio
Published: September 2017

A new continuous distribution model is introduced, joining triangular and exponential features, respectively on the left and right side of a hinge point. The cumulative distribution function is derived, as well as the first three moments. Expected values and the Pearson index of skewness are tabulated. A possible step-by-step approach to parameter estimation is outlined. An application to Italian geographical data is given, referring to a set of municipalities classified by population, showing a very satisfactory goodness of fit.
Cramér-Rao Lower Bound for Fuzzy-Valued Random Variables
Authors: Torabi Hamzeh
Published: September 2017

In some point estimation problems, we may confront imprecise (fuzzy) concepts. One important case is a situation where all observations are fuzzy rather than crisp. In this paper, using fuzzy set theory, we define a fuzzy-valued random variable, a fuzzy unbiased estimator, a fuzzy exponential family, and then we state and prove a Cramér-Rao lower bound for such fuzzy estimators. Finally, we give some examples.
R&D Spillovers: A Non-Spatial and a Spatial Examination
Authors: Gumprecht Daniela
Published: September 2017

In recent years there were many debates and different opinions whether R&D spillover effects exist or not. In 1995 Coe and Helpman published a study about this phenomenon, based on a panel dataset, that supports the position that such R&D spillover effects are existent. However, this survey was criticized and many different suggestions for improvement came from the scientific community. Some of them were selected and analysed and finally led to a new model. And even though this new model is well compatible with the data, it leads to different conclusions, namely that there doesnot exist an R&D spillover effect. These different results were the motivation to run a spatial analysis, which can be done by considering the countries as regions and using an adequate spatial link matrix. The used methods from the field of spatial econometrics are described briefly and quite general, and finally the results from the spatial models (the ones which correspond to the non-spatial ones) are compared with the results from the non-spatial analysis. The preferred model supports the position that R&D spillover effects exist.
Spatial Filtering with EViews and MATLAB
Authors: Ferstl Robert
Published: September 2017

This article summarizes the ideas behind a few programs we developed for spatial data analysis in EViews and MATLAB. They allow the user to check for spatial autocorrelation using Moran’s I and provide a spatial filtering procedure based on the Gi statistic by Getis and Ord (1992). We have also implemented graphical tools like Moran Scatterplots for the detection of outliers or local spatial clusters.
Observable Operator Models
Authors: Spanczér Ilona
Published: September 2017

This paper describes a new approach to model discrete stochastic processes, called observable operator models (OOMs). The OOMs were introduced by Jaeger as a generalization of hidden Markov models (HMMs). The theory of OOMs makes use of both probabilistic and linear algebraic tools, which has an important advantage: using the tools of linear algebra a very simple and efficient learning algorithm can be developed for OOMs. This seems to be better than the known algorithms for HMMs. This learningalgorithm is presented in detail in the second part of the article.
Hierarchical Models for Mitochondrial DNA Sequence Data
Authors: Berchialla Paola
Published: September 2017

We introduce a Bayesian hierarchical model for mitochondrial DNA sequence data, which is fitted via acceptance-rejection algorithms. The model incorporates parametric models of population history explicitly as well as a mutational process allowing for a simultaneous parameter estimation whose importance has become increasingly clear in many recent studies. The model is applied to a sample of DNA sequences from the Italian population.
Sampling Reconstruction of Stochastic Signals– The Roots in the Fifties
Authors: Draščić Biserka
Published: September 2017

In this article we are interested in the beginnings and the development of the sampling theory in signal analysis of stochastic signals, locating these in the early fifties. Besides the most important papers by Parzen (1956), Balakrishnan (1957), Belyaev (1959), and Lloyd (1959) we expose and report on few other interesting articles not widely known, giving an overview of the topic.
Spezielle statistische Testverfahren und ihre Anwendung in sozial-psychologischen Untersuchungen
Authors: Wälder Olga
Published: September 2017

Die Entwicklung und/oder Anwendung statistischer Verfahren gehören zu jeder sozial-psychologischen Studie. Die Vielfalt an realen Fragestellungen regt die Entwicklung auch von solchen Testverfahren an, die insbesondere frei von einschränkenden Annahmen über bestimmte Verteilungsklassen sind. In dieser Arbeit werden drei empirische Testverfahren vorgestellt, die sich auf einige Charakteristiken aus der Räumlichen Statistik undder Punktprozesstheorie stützen. Ihre Anwendung wird anhand einer sozialpsychologischenStudie präsentiert.
Identifikation von Kovariableneinflüssen in der Füllungstherapie
Authors: Schableger Karl , Pfoser Notburga , Wagner Helga
Published: September 2017

Um Informationen über die Haltbarkeit von Zahnfüllungen zu erhalten und den Einfluss verschiedener Faktoren zu untersuchen, wurden verschiedene statistische Analysen durchgeführt. Dafür standen in Oberösterreich Daten von rund 3.4 Millionen Zahnfüllungen aus den Jahren 1994 bis 2002 zur Verfügung. Neben einer Schätzung der Überlebensfunktion bzw. der Ausfallrate, wurde der Einfluss verschiedener Kovariablen auf die Lebensdauer der Füllungen in einem Cox-Modell geschätzt. Die im Verhältnis zur vorliegenden Datenmenge geringe Zahl von Kovariablen, legt es nahe, dass die Daten auch unbeobachtete Heterogenität enthalten. Von Interesse ist dabei insbesondere, ob diese auf Effekte der Leistungserbringer, d.h. der behandelnden Ärzte zurückgeführt werden können. Diese Effekte werden durch ein Gamma-Shared-Frailty-Modell geschätzt. Die Ergebnisse führen zu Vorschl ägen einer differenzierteren Honorierung der Füllungstherapie.
The Use of Statistics in Medical Research: A Comparison of Wiener Klinische Wochenschrift andWiener Medizinische Wochenschrift
Authors: Strasak Alexander M. , Zaman Qamruz , Marinell Gerhard , Pfeiffer Karl P. , Ulmer Hanno
Published: September 2017

To evaluate the quantity and quality of the use of statistics in Austrian medical journals, all “original research” papers in No. 116/1-12 of Wiener Klinische Wochenschrift (WKW) and 153/1-24, 154/1-24 of Wiener Medizinische Wochenschrift(WMW) were screened for their statistical content. Types, frequencies and complexity of statistical methods applied weresystematically recorded. A 46-item checklist was used to evaluate statistical quality for a subgroup of papers. 74.3% of WKW papers contained inferential methods beyond descriptive statistics. Only 43.7% of WMW papers employed methods of inferential statistics. There was a statistical significant difference regarding the use of statistical methods between the two journals (p = 0:009). In addition, complexity and sophistication of statistical analysis was considerable higher for WKW papers (p = 0:02). Statistical errorsand deficiencies were identified in a large proportion of papers. Although inferential statistics were frequently identified in papers from WKW, only a minority of WMW research had analytical character. Types and frequencies of statistical errors identified, did not vary meaningful from findings of similar studies for a wide range of medical journals. There is reason to assume, that the journal impact-factor does not seem to be a powerful predictor for the statistical quality of published research.
On the Ratio of Inverted Gamma Variates
Authors: Masoom Ali M. , Pal Manisha , Woo Jungsoo
Published: September 2017

In this paper the distribution and moments of the ratio of independent inverted gamma variates have been considered. Unbiased estimators of the parameter involved in the distribution have been proposed. As a particular case, the ratio of independent Levy variates have been studied.
How to keep the Type I Error Rate in ANOVA if Variances are Heteroscedastic
Authors: Moder Karl
Published: September 2017

One essential prerequisite to ANOVA is homogeneity of variances in underlying populations. Violating this assumption may lead to an increased type I error rate. The reason for this undesirable effect is due to the calculation of the corresponding F-value. A slightly different test statistic keeps the level ®. The underlying distribution of this alternative method is Hotelling’s T2. As Hotelling’s T2 can be approximated by a Fisher’s F-distribution, this alternative test is very similar to an ordinary analysis of variance.
Ein Vergleich randomisierter Antworttechniken bei Ziehen ohne Zurücklegen
Authors: Quatember Andreas , Freudenthaler Christoph
Published: September 2017

Wird bei ”heiklen“ Themen bei direkter Befragung eine hohe Nonresponse- bzw. Falschantwortrate riskiert, dann bieten randomisierte Antworttechniken eine alternative Möglichkeit zur Erzielung unverzerrter Schätzer für interessierende Parameter. Man bezahlt dafür mit einer Erhöhung der Ungenauigkeit der Schätzer. In diesem Aufsatz werden für zwei solche Schätzer für Anteile ihre Varianzen bei Ziehen ohne Zurücklegen hergeleitet.Ferner werden die Stichprobenverteilungen weiterer mit solchen Befragungsdesignserhobener Schätzer in einer Simulationsstudie miteinander verglichen und grafisch veranschaulicht. Die Ergebnisse geben Auskunft über die Qualität von insgesamt 24 Schätzern, ihre Unterschiede und Grenzen.
Duration Distribution and Up-crossings Rate of Generalized Hyperbolic Processes
Authors: Alodat Moh’d T. , Aludaat Khalid M.
Published: September 2017

A Gaussian process is usually used to model the sea surface elevation in the oceanography. As the depth of the water decreases or the sea severity increases, the sea surface elevation departs from symmetry and Gaussianity. In this paper, a stationary non-Gaussian random process called the generalized hyperbolic process is used as an alternative model. The process generates a family of processes. We derive the rate of up-crossings for this process and the distribution of the height of the process. We also derive the duration distribution of an excursion for the generalized hyperbolic process.
Bayesian Estimation of the Exponential Parameter under a Multiply Type-II Censoring Scheme
Authors: Singh Umesh , Kumar Anil
Published: September 2017

This paper provides the estimation of the scale parameter of the exponential distribution under multiply type-II censoring. Using generalized non-informative prior and natural conjugate prior, Bayes estimator and approximate Bayes estimators of the scale parameter have been obtained under square error loss function. The proposed Bayes estimators and approximate Bayes estimators are compared with the estimators proposed by Singh et al. (2005) and Balasubramanian and Balakrishnan (1992) on the basis of theirsimulated risks under square error loss function of 1000 randomly generated Monte Carlo samples.
Book Review
Authors: Stadlober Ernst
Published: September 2017

Johannes LEDOLTER and Arthur J. SWERSEY (2007). Testing 1-2-3 ExperimentalDesign with Applications in Marketing and Service Operations. Stanford, Stanford UniversityPress, XII+300 pp, $65,-. ISBN 13:978-0-8047-5612-9
Erinnerungen an o. Univ. Prof. Dipl.-Ing. Dr. techn. Harald STRELEC
Authors: Sammer Gerd
Published: September 2017

Vorstand des Institutes für Angewandte Statistik und EDV am Department für Raum, Landschaft und Infrastruktur der Universität für Bodenkultur Wien
Discriminating between Long Memory and Volatility Shifts
Authors: Zhang Aonan , Gabrys Robertas , Kokoszka Piotr
Published: September 2017

We develop a practical implementation of the test proposed in Berkes, Horv´ath, Kokoszka, and Shao (2006) designed to distinguish between a change-point model and a long memory model. Our implementation is calibrated to distinguish between a shift in volatility of returns and long memory in squared returns. It uses a kernel estimator of the long-run variance of squared returns with the maximal lag selected by a data driven procedure which depends on the sample size, the location of the estimated change point and the direction of the apparent volatility shift (increase versus decrease). In a simulations study, we also consider other long-run variance estimators, including the VARHAC estimator, but we find that they lead to tests with inferior performance. Applied to returns on indexes and individual stocks, our test indicates that even for the same asset, a change-point model may be preferable for a certain period of time, whereas there is evidence of long memory in another period of time. Generally there is stronger evidence for long memory in the eight years ending June 2006 than in the eight years starting January 1992. This pattern is most pronounced for US stock indexes and shares in the US financial sector.
The new Population Register at Statistics Austria Conceptualization and Methodology for Register-based Flow and Stock Statistics
Authors: Lebhart Gustav , Neustädter Christian , Kytir Josef
Published: September 2017

With Statistics Austria’s new population register (POPREG) it is possible to display the population stock and flow for specific points in time and periods for all territorial sub-units in Austria. POPREG is probably the first population register worldwide in which stock and flow data for all relevant demographic categories are conceptualized under common methodological criteria. Thus the population stock no longer has to be estimated and/or annually updated. The multi-level plausibility checks of the Central Register of Residence (CRR) data on registrations and deregistrations of usual places of residence and of the CRR data on residents with their current main place of residence allow for an improvement in the quality to explain demographic processes. Statistics Austria’s new population register thereby forms a central component of Austria’s statistical system. It provides data on population structure and population development and at the same time forms the central information base for migration statistics. In the future, new synthesis statistics (census register) will be able to be produced through a networked analysis of available register data (e.g. criteria from POPREG networked with criteria from the building and dwelling register or the register of education).
Decomposition of Symmetry into Ordinal Quasi-Symmetry and Marginal Equimoment for Multi-way Tables
Authors: Yamamoto Hideharu , Iwashita Toshiya , Tomizawa Sadao
Published: September 2017

For the analysis of square contingency tables with ordered categories, Agresti (1983) introduced the linear diagonals-parameter symmetry (LDPS) model. Tomizawa (1991) considered an extended LDPS (ELDPS) model, which has one more parameter than the LDPS model. These models are special cases of Caussinus (1965) quasi-symmetry (QS) model. Caussinus showed that the symmetry (S) model is equivalent to the QS model and the marginal homogeneity (MH) model holding simultaneously. For square tables with ordered categories, Agresti (2002, p.430) gave a decomposition for the S model into the ordinal quasi-symmetry and MH models. This paper proposes some decompositions which are different from Caussinus’ and Agresti’s decompositions. It gives (i) two kinds of decomposition theorems of the S model for two-way tables, (ii) extended models corresponding to the LDPS and ELDPS, and the generalized model further for multi-way tables, and (iii) three kinds of decomposition theorems of the S model into their models and marginal equimoment models for multi-way tables. The proposed decompositions may be useful if it is reasonable to assume the underlying multivariate normal distribution.
Book Review
Authors: Stadlober Ernst
Published: September 2017

Holger KNÖPFEL und Matthias LO¨WE (2007). Stochastik — Struktur im Zufall. Müchen, Oldenbourg Verlag, VIII+266 S., ISBN 978-3-486-58448-6.