bluuebunny/crossref_metadata_2025_split huggingface dataset:
DESEMPEÑO ANTE LA CORROSIÓN Y TRIBOCORROSIÓN DE ALEACIONES COMERCIALES DE ALUMINIO ANODIZADAS
Authors: Rodriguez Samantha , Carrasquero Rodriguez Edwuin Jesus , Lopez Lopez Luis Marcelo , Fajardo Seminario Jorge Isaac 
Published: January 2017

<p>El presente trabajo se evalúa el desempeño de dos aleaciones comerciales de aluminio anodizadas ante la corrosión y tribocorrosión. Para el anodizado se emplearon dos tipos de electrolitos distintos (H<sub>2</sub>SO<sub>4</sub> y H<sub>2</sub>C<sub>2</sub>O<sub>4</sub>), un valor constante de densidad de corriente y dos tiempos de anodizado (30 y 45 minutos). Haciendo uso de las técnicas de Microscopía Electrónica de Barrido (M.E.B) y Espectroscopía por Dispersión de la Energía de Rayos X (EDX), se caracterizaron las aleaciones y la morfología de las superficies formadas en las capas de óxido para las condiciones establecidas, encontrándose diferencias notables entre la condición de anodizado (A1) a 45 minutos en H<sub>2</sub>SO<sub>4</sub> para la aleación AA6061, y la condición de anodizado (D1) para el mismo tiempo en H<sub>2</sub>C<sub>2</sub>O<sub>4 </sub>para la aleación AA8011. En la condición de anodizado A1, se encontró la formación de la morfología tipo “smudge” distintiva de la solución electrolítica utilizada, con un espesor promedio de capa anódica de 5,95± 0,02 μm, mientras que, para la condición de anodizado D1 se obtuvo un espesor de 3,14± 0,02 μm, con la aparición de cavidades en toda la extensión de su superficie. Tanto para los ensayos de corrosión en cámara de niebla salina, electroquímicos de polarización potenciodinámica y tribocorrosión, se encontró que el mejor desempeño fue registrado en la condición de anodizado A1, con una menor: ganancia promedio de masa, densidad de corriente de corrosión y coeficiente de fricción. Todas las condiciones de anodizado mejoraron el comportamiento ante ensayos de degradación acelerada, en comparación con las muestras sin anodizado.</p>
Ontologia Sociológica da Esfera Pública Digital: o caso da Web 2.0/3.0
Authors: Andrade Pedro 
Published: January 2017

A esfera pública digital encontra-se imersa na actual conjuntura de transformação acelerada e provavelmente de ruptura, que influirá certamente no modo de exercer a cidadania na contemporaneidade. Este tsunami social e político funda-se, em parte, na passagem do paradigma da Web 2.0 ou Web Social para a Web 3.0 ou Web Semântica. Para esclarecer um tal processo, o presente artigo discute algumas das principais questões e posturas teóricas sobre o espaço público, desde o posicionamento seminal de Habermas até às novas problemáticas suscitadas pela sociedade em rede. O autor sugere a construção de uma Ontologia Sociológica da Web Social e Semântica, a partir das Sociologia e Metodologia Semântico-Lógicas. Estes procedimentos são aplicados através da análise e hermenêutica de uma página da Wikipédia intitulada ‘Web 2.0’, onde se utilizam instrumentos sociológicos experimentais como os campos, árvores e redes semântico-lógicas, conceitos centrais e periféricos, bem como tricotomias.
Os meios públicos de comunicação e a construção da esfera pública
Authors: Detoni Márcia 
Published: January 2017

Em uma era marcada por múltiplas plataformas de distribuição de conteúdo, oligopolização dos setores midiáticos e transnacionalização das indústrias culturais, não basta mais, para a mídia pública, informar, educar e entreter com independência e qualidade ética e estética como propôs a britânica BBC em 1927. Veículos financiados por recursos públicos precisam encontrar uma nova função social que os diferencie dos meios privados e justifique investimentos do Estado em comunicação. Para um crescente número de pesquisadores e analistas do tema, essa nova função é justamente a criação e fortalecimento de uma esfera pública midiática ampla, capaz de garantir aos cidadãos um espaço para o debate das questões coletivas, num processo que estimule a participação cidadã e a ação transformadora. Este artigo examina o papel dos serviços públicos de comunicação no século XXI a partir do pensamento do filósofo e sociólogo alemão Jürgen Habermas, cujo conceito de esfera pública, aperfeiçoado por outros autores, tornou-se central nas discussões sobre a construção de espaços midiáticos emancipatórios.
Influência da comunicação municipal na imprensa regional
Authors: Costa Cláudia Maria Pereira da 
Published: January 2017

No presente artigo procuramos perceber como funcionam as estruturas que as câmaras municipais dos distritos de Braga e de Viana do Castelo criaram e implementaram para se relacionar com a comunicação social e as estratégias de trabalho implementadas. Pretendemos, igualmente, avaliar a reacção e postura de jornalistas e directores do Correio do Minho e do Diário do Minho perante a crescente profissionalização das estruturas municipais associadas à comunicação.Deste modo, procuramos analisar o impacto que as câmaras municipais têm na imprensa regional e perceber se, e como, o trabalho das estruturas de comunicação municipais, concretamente dos dois distritos do Minho, condiciona o funcionamento dos dois jornais, o seu conteúdo e a apresentação do seu produto jornalístico.Após a análise realizada, concluímos que a actividade das estruturas dos municípios minhotos associadas à comunicação condiciona os dois diários bracarenses e o conteúdo e a apresentação do seu produto jornalístico.
A Phonological Analysis of Passive Structures in Kisukuma
Authors: Alqarni Muteb A. 
Published: January 2017

The current paper documents and examines the passive structure in Kisukuma, a Bantu language spoken in Tanzania. It provides a phonological analysis of the marker [-w-] as opposed to its variants, i.e. [-w-] and its absence [-Ø-]. The documented data is accounted for according to the principles of Chomsky and Halle (1968)’s rule-based derivational theory. In this paper, I show that Kisukuma does not allow three occurrences: (i) diphthong formation, (ii) gemination, and (iii) [+labial]^[+labial] combination. Although Chomsky and Halle (1968)’s rule-based derivational theory provides an accurate account for all the data, it fails to explain why the [+labial] sound, [-w-], is sometimes deleted, and it is in other times retained yet the final [+labial] consonant of the stem undergoes deletion instead.
The Impact of a Cultural Research Course Project on Foreign Language Students’ Intercultural Competence and Language Learning
Authors: Li Fang , Liu Yingqin 
Published: January 2017

This study explores whether using a cultural research course project can positively impact foreign language students’ intercultural competence and language learning. Using a case study method, the researchers recruited 12 student participants from an Intermediate Mandarin Chinese I class and from an Introduction to Mandarin Chinese I class in the Fall 2014 semester at a small public southwest university in USA. The project asked the participants to do a PowerPoint oral presentation on special topics from the target language culture and then to write a reflective cultural comparison English essay on this learning experience during the final exam. The findings show that, through doing the project, the students have improved their intercultural competence in that they have a more positive attitude towards “otherness,” enriched their cultural knowledge of the target language society and that of their own, and obtained skills in critically appreciating and evaluating both similarities and differences between the target language culture and their own. The students also expanded their language learning experience beyond the classroom and textbook and acquired better language skills in listening, speaking, and writing Chinese characters while they became more interested in and motivated by learning the target language and culture. Recommendations for future study are discussed.
The multivariate multisample nonparametric rank statistics for the location alternatives
Authors: Murakami Hidetoshi 
Published: January 2017

Multisample testing problems are among the most important topics in nonparametric statistics. Various nonparametric tests have been proposed for multisample testing problems involving location parameters, and the analysis of multivariate data is important in many scientific fields. One type of multivariate multisample testing problem based on Jureckova-Kalina-type rank of distance is discussed in this paper. A multivariate Kruskal-Wallis-type statistic is proposed for testing the location parameter with both equal and unequal sample sizes. Simulations are used to compare the power of proposed nonparametric statistics with the Wilks' lambda, the Pillai's trace and the Lawley-Hotelling trace for various population distributions.
The Beta Exponential Fréchet Distribution with Applications
Authors: Mead M.E. , Afify Ahmed Z. , Hamedani G.G. , Ghosh Indranil 
Published: January 2017

We define and study a new generalization of the Fréchet distribution called the beta exponential Fréchet distribution. The new model includes thirty two special models. Some of its mathematical properties, including explicit expressions for the ordinary and incomplete moments, quantile and generating functions, mean residual life, mean inactivity time, order statistics and entropies are derived. The method of maximum likelihood is proposed to estimate the model parameters. A small simulation study is alsoreported. Two real data sets are applied to illustrate the flexibility of the proposed model compared with some nested and non-nested models.
The Odd Lindley-G Family of Distributions
Authors: Gomes-Silva Frank S. , Percontini Ana , Brito Edleide de , Ramos Manoel W. , Venâncio Ronaldo , Cordeiro Gauss Moutinho 
Published: January 2017

We propose a new generator of continuous distributions with one extra positive parameter called the odd Lindley-G family. Some special cases are presented. The new density function can be expressed as a linear combination of exponentiated densities based on the same baseline distribution. Various structural properties of the new family, which hold for any baseline model, are derived including explicit expressions for the quantile function, ordinary and incomplete moments, generating function, Renyi entropy, reliability, order statistics and their moments and k upper record values. We discuss estimation of the model parameters by maximum likelihood and provide an application to a real data set.
US-Iran Rapprochement: Lessons from the US-China Experience
Authors: Bin Huwaidin Mohamed 
Published: January 2017

<p>The relations between the United States and Iran are now in an important critical moment. The success in keeping the nuclear deal will close a bitter chapter in the troubled relations between the two countries. The current issue, however, is whether or not this deal will lead to a real rapprochement like the one that took place between the United States and China in the 1970s. This paper investigates this issue, and argues that there are many lessons that can be drawn from the US rapprochement experience with China that can help explain current and future US-Iran reconciliation.</p><p><em>Keywords: </em>International relations, International security, Rapprochement, US-Iran relations</p>
Complications Associated with Intra-Articular and Extra-Articular Corticosteroid Injections
Authors: Honcharuk Erin , Monica James 
Published: January 2017

➢ Side effects of corticosteroids can occur in association with both intra-articular and extra-articular injections.➢ Less-severe reactions include skin reactions and flare responses.➢ Although rare, worrisome complications such as infections, tendon ruptures, and osteonecrosis can occur.➢ It is important to note the effect of corticosteroids on blood glucose levels, particularly for patients with diabetes.➢ Corticosteroid injections have visual side effects with a known relation to central serous chorioretinopathy.
Instability and Arthritis of the Distal Radioulnar Joint
Authors: Faucher Gregory K. , Zimmerman Ryan M. , Zimmerman Neal B. 
Published: January 2017

➢ Arthritis and instability represent 2 of the most common pathological processes affecting the distal radioulnar joint (DRUJ). These conditions can present in isolation or as components of a multifactorial process.➢ Nonoperative treatment is indicated for most acute injuries to the DRUJ. The joint should be immobilized in a position of stability to allow for ligament healing. Likewise, early arthritis responds favorably to rest, immobilization, corticosteroids, and nonsteroidal anti-inflammatory drugs (NSAIDs).➢ When DRUJ instability is refractory to nonoperative measures, native ligament repair is the preferable method of treatment. When this method is not possible, anatomical reconstruction of the distal radioulnar ligaments should be performed.➢ For advanced DRUJ arthritis Darrach resection should be reserved for the elderly, low-demand patient. The Sauvé-Kapandji procedure allows for arthrodesis of the DRUJ while maintaining forearm rotation and a stable base for the ulnar carpus.➢ DRUJ hemiarthroplasty procedures have been associated with favorable preliminary results. These implants attempt to reproduce native biomechanics and may be used in lieu of or as a salvage procedure after resection arthroplasty. DRUJ arthroplasty should be used as a salvage procedure.
Acerca de “Mapeo político de la discriminación y homofobia asociadas con la epidemia de VIH en México”
Authors: Ochoa-Fernández Andrea Carolina , Sánchez-Siancas Johanna Edith , Ueda-Muro Daniela Alexandra , Ugarte-Gil César 
Published: January 2017

Hemos leído con gran interés el artículo titulado “Mapeo político de la discriminación y homofobia asociadas con la epidemia de VIH en México”. Ante la situación actual planteada en México,presumimos que en otros países de Latinoamérica la realidad no es muy diferente debido a las características similares a nivel cultural y social...
Políticas públicas en salud basadas en la evidencia. Discusión en el contexto peruano
Authors: Barboza-Palomino Miguel , Caycho Tomás , Castilla-Cabello Humberto 
Published: January 2017

Los países latinoamericanos enfrentan una serie de problemáticas que frenan su desarrollo. Una de las más comunes se relaciona con el aspecto de la salud pública, que afecta a un número grande de personas en contextos donde aún se vivencian y observan muchas brechas e inequidades...
Miguel E. Bustamante. Un pilar de la Salud pública moderna en México
Authors: Gómez Dantés Héctor 
Published: January 2017

Sociedad Mexicana de Salud Pública y la Fundación Carlos Slim tuvieron a bien regalarnos un texto que hace la semblanza –honorable y justa– de un mexicano excepcional. El texto ofrece la biografía del Dr. Miguel Enrique Bustamante Vasconcelos, oaxaqueño de origen pero mexicano universal por destino. Sin responder a un homenaje por su natalicio (2 de mayo de 1898) o por el aniversario de su muerte (4 de enero de 1986) –acaso 30 años más tarde–aparece este libro, elegante en su edición gracias al cuidado y la minuciosa investigación histórica, documental e iconográfica de Ediciones Clío. Más allá de las atinadas motivaciones que tuvieron los coordinadores de esta obra –los doctores Rafael Lozano y Roberto Tapia Conyer– para embarcarse en su elaboración, es preciso darles un aplauso pues nunca es tarde para apreciar la labor de otros; dar una verdadera dimensión a su legado; recuperar su dignidad; identificar sus enseñanzas y mantener viva su memoria.
Educación sexual integral: cobertura, homogeneidad, integralidad y continuidad en escuelas de México
Authors: Rojas Rosalba , De Castro Filipa , Villalobos Aremis , Allen-Leigh Betania , Romero Martin , Braverman-Bronstein Ariela , Uribe Patricia 
Published: January 2017

Objetivo. Analizar la cobertura de la educación sexual integral (ESI) en México y describir su integralidad, homogeneidad y continuidad en cuanto a contenidos sobre salud sexual yreproductiva, autoeficacia, derechos y relaciones. Material y métodos. En una encuesta probabilística transversal con muestreo estratificado y por conglomerados, se aplicó uncuestionario sobre ESI a una muestra representativa a nivel nacional de 3 824 adolescentes de 45 escuelas de educación media superior públicas y privadas, en localidades urbanasy rurales. Resultados. El porcentaje de adolescentes que reportan recibir educación sexual integral varía dependiendo de los temas y nivel escolar. Los temas más frecuentes estánrelacionados con salud sexual y reproductiva; los menos tratados con derechos y relaciones. Los contenidos de educación sexual se trasmiten mayoritariamente durante la escuela secundaria. Conclusiones. Se requiere garantizar la integralidad, homogeneidad y continuidad de los contenidos de la ESI, asegurando que se imparta la totalidad de los temas planteados en recomendaciones nacionales e internacionales.
Modernización académica de la Escuela de Salud Pública de México: 1983-1995
Authors: Frenk Julio , Ruelas Enrique , Gómez-Dantés Octavio , López-Cervantes Malaquías , Magaña-Valladares Laura , Gudiño-Cejudo María Rosa 
Published: January 2017

Este artículo discute los esfuerzos por modernizar la Escuela de Salud Pública de México (ESPM). En la primera parte se abordan las condiciones en las que operaba la Escuela a principios de la década de los ochenta. En la segunda parte se describen los cambios introducidos entre 1983 y 1986, hasta antes de la incorporación de la ESPM al Instituto Nacional de Salud Pública (INSP). En la tercera parte se revisa, sobre todo, a renovación conceptual que dio sustento a los nuevos programas docentes que se implantaron a finales de los años ochenta y las iniciativas implantadas entre 1987 y 1995. En la cuarta parte se discute la construcción de la nueva sede del INSP y la mudanza a Cuernavaca. Este ensayo busca comunicar la importancia de las transformaciones por las que atravesó la ESPM y que la convirtieron en una institución verdaderamente académica que utiliza la investigación como motor de la formación de los recursos humanos en salud pública.
Exploración del rol de la oferta de servicios para explicar la variación de la mortalidad por sida en México
Authors: Serván Mori Edson , Bautista-Arredondo Sergio , Silverman-Retana Omar , Contreras-Loya David , Romero-Martínez Martín , Magis-Rodríguez Carlos , Uribe-Zúñiga Patricia 
Published: January 2017

Objetivo. Documentar la asociación entre factores de la oferta de servicios de atención de VIH sobre la mortalidad por sida en México en el periodo 2008-2013. Material y métodos. Se analizaron datos del sistema de administración, logística y vigilancia de antirretrovirales (SALVAR) y de una encuesta aplicada en unidades de atención. Se utilizaron modelos de regresión logit multivariados para estimar la asociación entre características de la oferta de servicios –en particular, de la gerencia de servicios y de la capacitación y experiencia de los prestadores– y la mortalidad por sida, distinguiendo entre mortalidad temprana y no temprana, y controlando por características clínicas de los pacientes. Resultados. Las características clínicas de los pacientes (CD4 inicial y carga viral) explican 44.4% de la variabilidad en la mortalidad temprana entre clínicas y 13.8% de la variabilidad de mortalidad no temprana. Las características de la oferta aumentan 16% del poder explicativo en el caso de la mortalidad temprana y 96% en el de la mortalidad no temprana. Conclusiones. Los aspectos de gerencia e implementación de los servicios de atención de VIH contribuyen significativamente a explicar la mortalidad por sida en México. Mejorar estos aspectos del programa nacional puede mejorar sus resultados.
Cáncer primario múltiple: factores que condicionan una detección oportuna
Authors: Díaz-Vélez Cristian , Torres-Román Junior Smith , Fernández-Mogollon Jorge L , Grados-Sánchez Oswaldo 
Published: January 2017

Actualmente, el cáncer es uno de los mayores problemas de salud pública. En 2013 hubo una incidencia de 14.9 millones de casos de cáncer y 8.2 millones de muertes,generando así 196.3 millones de años de vida ajustados por discapacidad (DALY) en todo el mundo...
The role of surface storage of brackish marshes in the southern area of the Baltic Sea (northern Poland)
Authors: Cieśliński Roman , Jokiel Joanna 
Published: January 2017

Abstract
This paper attempts to define the dynamics of the surface storage in water circulation in brackish marshes located in the contact zone of the land and sea. This study estimated the quantity of water stored in the area of the Beka reserve during mapping between December 2011 and December 2013. The study area is characterized by the simultaneous influence of marine and fresh waters. The hydrographic situations observed in the area of the Beka reserve are a momentary picture of the surface storage. The maximum retention periods of surface water on the Beka reserve include nearly 40% of the marsh area. The main source of supply of such large quantities of water is not only the atmospheric supply, but also the seawater inflow, particularly often observed during the autumn–winter storms in the Baltic Sea, as well as other periodic flooding of water from the rivers, canals and ditches located within the reserve. At other times, the area occupied by the surface water is, on average, from ca. 2% to nearly 12%. Only in the summer periods is a decrease in the surface (below 1%) observed due to the strong evapotranspiration in the study area.
Heart Rate Variability in Patients with Post-infarction Left Ventricular Aneurysm
Authors: Chinyerenwa Okara , Vytryhovskiy Andriy , Warenytsia Elina , Libryk Oleg 
Published: January 2017

The parameters of heart rate variability are known to be widely used for screening the occurrence of ventricular arrhythmia in patients with post-infarction left ventricular aneurysm. However, in literature, there are not much data on changes in heart rate variability in patients with post-infarction left ventricular aneurysm depending on different therapeutic approaches, and this issue is not sufficiently studied. The objective of the research was to study the peculiarities of heart rate variability in patients with post-infarction left ventricular aneurysms depending on therapeutic approach.Materials and methods. We analyzed heart rate variability of 238 patients with post-infarction left ventricular aneurysm. All patients were divided into 3 groups depending on therapeutic approach: optimal basic therapy, patients who underwent percutaneous coronary interventions and those after coronary artery bypass grafting. All patients underwent 24-hours standard ECG monitoring with the analysis of heart rate variability.Results. The study showed that heart rate variability of patients with post-infarction left ventricular aneurysm depended on treatment tactics; hypersympathicotonia was typical. The values of the low-frequency range in patients of Group I and Group III constituted 3103±93.6 ms2 and 3295±45.4 ms2, respectively, which was higher compared to those in the control group and Group II, р<0.05. Parasympathetic influences in patients with post-infarction left ventricular aneurysm were weakened. The analysis of the integral parameters showed that in patients with post-infarction left ventricular aneurysm the autonomous mechanisms of regulation predominated over the central ones. The centralization index was the lowest in patients of Group I and Group II, 2.9±0.3 and 2.3±0.1, respectively, being lower compared to the control group, р<0.05. The other peculiarities were detected as well.Conclusions. The parameters of heart rate variability in patients with post-infarction left ventricular aneurysm were found to depend on treatment tactics. The patients with non-surgical treatment tactics had the most unfavorable heart rate variability characteristics. They developed hypersympathicotonia and high humoral regulatory influences. The application of revascularization when treating patients with post-infarction left ventricular aneurysm using percutaneous coronary interventions can reduce the aggressive sympathetic influences, as well as the value of the Baevsky index. Revascularization with the use of coronary artery bypass grafting does not allow optimizing the autonomous imbalance, although it reduces stress index.