bluuebunny/crossref_metadata_2025 huggingface dataset:
Metacognitive Skills of Malaysian Students in Non-Routine Mathematical Problem Solving
Authors: Abdullah Abdul Halim , Rahman Sharifah Nurarfah S. Abd , Hamzah Mohd Hilmi
Published: May 2017

Abstract Metacognitive skills play an important role in solving mathematical problems. However, there is a lack of empirical studies on the role of metacognitive skills in solving mathematical problems, particularly non-routine ones. Therefore, this study was undertaken to identify students' metacognitive skills and the impact of such skills on non-routine mathematical problem solving. By using a quantitative method, a total of 304 students in Johor Bahru district were involved in the study. A Self-Monitoring Questionnaire (SMQ) and a mathematical test were used in data collection. Data were analysed using descriptive and inferential statistics such as frequency, percentage, mean, the Mann-Whitney U test, and the Kruskal-Wallis H test. Results showed that the level of the students' performance in solving non-routine mathematical problems was very low. There was also a significant difference in the metacognitive skills among students with different performance levels in solving non-routine mathematical problems, and we concluded that these metacognitive skills should be emphasised in this process.
O Processo de Construção de Abordagens Históricas na Formação Interdisciplinar do Professor de Matemática
Authors: Araman Eliane Maria de Oliveira , Batista Irinéa de Lourdes
Published: May 2017

Resumo Este artigo apresenta os resultados de uma investigação a respeito da relevância que o processo de construção de abordagens históricas apresenta na formação do professor de Matemática, mais especificamente no que se refere à construção de saberes interdisciplinares. As investigações evidenciam que os conhecimentos teóricos e metodológicos da história da Matemática são importantes para a formação docente. Diante disso, nosso objetivo, neste artigo, é analisar e evidenciar como tais conhecimentos colaboram para a estruturação de saberes interdisciplinares do professor de Matemática. Para isso, entrevistamos seis professores que vivenciaram o processo de construção e aplicação de abordagens históricas em sala de aula e, por meio da análise de conteúdo, estruturamos categorias que evidenciam saberes que colaboram para a formação interdisciplinar do professor.
Reflexión de futuros profesores de matemáticas sobre problemas profesionales relacionados con la enseñanza del álgebra escolar
Authors: Castellanos María Teresa , Flores Pablo , Moreno Antonio
Published: May 2017

Resumen En este estudio se analiza la reflexión de dos futuros profesores de matemáticas, cuando identifican, definen y afrontan problemas profesionales relacionados con la enseñanza y el aprendizaje del álgebra escolar durante las prácticas de enseñanza. Con este propósito se planificó e implementó un módulo formativo en el prácticum de un programa de licenciatura en matemáticas en Colombia, bajo la teoría del aprendizaje realista, para promover la realización de un ciclo reflexivo bajo el modelo ALaCT. Siguiendo el enfoque de la investigación cualitativa, de carácter interpretativo, y usando el análisis de contenido se han examinado las producciones de los participantes, los registros obtenidos en la intervención y del diario de campo del investigador. El estudio muestra que los profesores llevaron a cabo las fases de reflexión, se informa cómo va evolucionando el problema profesional, atendiendo a las características y a la naturaleza objeto de la situación problema y al conocimiento profesional involucrado para fundamentar la definición del problema acerca de la enseñanza del álgebra.
Efectos de la aplicación de tratamientos isotérmicos sobre el tamaño de grano y la dureza de aleaciones de aluminio AA5083-H116
Authors: Unfried-Silgado Jimy , del Río Julieth López , Vargas Dinayra Machuca , Caicedo Ellery Pérez , Pinedo Carlos Zambrano , Núñez Enrique Esteban Niebles
Published: May 2017

RESUMEN En este trabajo se estudia la relación entre las características morfológicas del grano y la dureza de la aleación de aluminio AA5083-H116 cuando se somete a la acción de tratamientos isotérmicos diversos no acumulativos. Para el análisis se usaron las técnicas de microscopia óptica y electrónica de barrido, microanálisis químico, medición de durezas, barridos de calorimetría diferencial, cálculos con termodinámica computacional y análisis de imágenes con el objetivo de estimar las temperaturas de inicio de la recristalización y de crecimiento de grano, así como las transformaciones de fase asociadas a estos ciclos térmicos. Se determinó que la temperatura de inicio de recristalización estática del material está entre 150° y 180°C, ocurriendo como un proceso heterogéneo, mientras que un posible crecimiento anormal del grano inicia aproximadamente a los 300°C. Estos resultados son importantes para entender lo que ocurre en la microestructura durante los procesos de fabricación en los cuales se presenten ciclos térmicos similares, como en soldadura por fusión y tratamientos térmicos aplicados sobre este tipo de material y su relación con los cambios en propiedades locales.
Influência do Ti e da taxa de resfriamento na microestrutura e na temperatura MS em ligas Ni-Ti com EMF solidificadas rapidamente
Authors: Anselmo George Carlos dos Santos , Castro Walman Benicio de
Published: May 2017

RESUMO Um grande desafio no projeto de microssistemas é a implementação de princípios eficientes de atuação miniaturizados em microescala. Ligas com efeito memória de forma (EMF) têm sido consideradas como uma solução potencial para este problema, uma vez que estes materiais oferecem propriedades atraentes como grande deformação e capacidade para ser processada em microescala. Ligas com composição Ni-44, 8wt% Ti e Ni-45, 3wt% Ti foram produzidas usando o método melt spinning em atmosfera argônio. Fitas obtidas neste processo mostraram tamanho médio de grãos martensíticos entre 5 e 30 µm, dependendo do tipo de liga e da velocidade linear da roda do melting spinning. As temperaturas de início de transformação martensítica (MS) assim como o tamanho de grãos foram reduzidos com o aumento de velocidade linear da roda e da quantidade de titânio.
Projeto de arborização como patrimônio da cidade
Authors: Gonçalves Andréia , Meneguetti1 Karin Schwabe
Published: May 2017

A arborização urbana é um elemento de grande importância para a qualidade do espaço urbano e colabora também para a formação da memória e do patrimônio cultural das cidades. O projeto paisagístico pode garantir à cidade características espaciais de significativo valor estético. Esta pesquisa analisou o conjunto arbóreo viário do plano inicial da cidade de Maringá, PR, implantado a partir de um projeto de arborização que teve forte apelo estético. A pesquisa foi dividida em quatro processos: simulação do projeto de arborização inicial da cidade, por meio do mapeamento da distribuição dos indivíduos arbóreos ao longo das vias de toda a área de estudo; análise da paisagem atual, levantada in loco e registrada por meio de fotografias, que identificou a situação em que se encontra o conjunto arbóreo das vias; análise comparativa entre o projeto de arborização implantado e a condição atual do conjunto arbóreo, com a identificação dos principais fatores que influenciam o desenvolvimento e a preservação da arborização; e, por fim, a proposição de um projeto de rearborização. Este projeto busca solucionar os problemas causados principalmente pelo envelhecimento dos espécimes, o que acarreta a necessidade de substituição, para preservar as características estéticas da paisagem, advindas da unidade do conjunto arbóreo implantado.
Phase I Dose-Escalation Study of Ramucirumab in Chinese Patients with Advanced Solid Tumors
Authors: Cao Junning , Ji Dongmei , Chen Zhiyu , Shen Weina , Wang Jin , Li Baoyue , Chi Haidong , Long Amanda , Gao Ling , Li Jin
Published: May 2017

Lessons Learned

Ramucirumab was well tolerated in Chinese patients with advanced solid tumors, and adverse events were manageable in this study. Pharmacokinetics characteristics in Chinese patients were similar to those in other populations. Immunogenicity was not detected. No efficacy conclusion could be drawn, and further randomized studies are warranted.

Background

This single-arm, nonrandomized, open-label, dose-escalation, phase I study was designed to evaluate the safety, tolerability, and pharmacokinetics (PK) of ramucirumab in Chinese patients with advanced solid tumors that were resistant to standard therapy or no standard therapy was available.

Methods

Dose escalation was a 3 + 3 design, with expansion in Cohorts 2 and 3 for PK. Ramucirumab was given intravenously at three different dosages: 6 mg/kg every 2 weeks, 10 mg/kg every 3 weeks, and 8 mg/kg every 2 weeks. Safety analyses included all patients. PK, immunogenicity, and antitumor activity were also assessed.

Results

Among 28 patients treated, 2 experienced dose-limiting toxicity, possibly related to ramucirumab. No maximum tolerated dose was determined. All patients experienced at least one treatment-emergent adverse event. Grade ≥3 adverse event was reported for 53.6% (n = 15) of patients. PK analyses indicated that ramucirumab had low clearance, small volume of distribution, and long half-life in Chinese patients, as in other populations. Immunogenicity was not detected. No patient had complete/partial response, and 64.3% (n = 18) had stable disease with a median duration of 5.55 months (95% confidence interval: 3.38−7.13 months).

Conclusion

Ramucirumab appeared to be well tolerated in Chinese patients with advanced solid tumors. PK characteristics in Chinese patients were similar to those in other populations.
Designing an English for Special Purposes (ESP) Course: The Case of Medical Students
Authors: Innocent DATONDJI Coovi
Published: May 2017

This paper is an extract from a syllabus I have conceived and designed to be used by the medical students of the Faculty of Medicine of Porto-Novo, in the Republic of Benin. My objective in writing it is to show student teachers of English as a foreign language some of the aspects and stages that have to be considered when designing a syllabus of this kind, that is, English for Special Purposes. This course is intended for all years’ medical students at the Special Faculty of Medicine at Porto-Novo, in the Republic of Benin, and in any other university, who do not speak English as their mother tongue, but who need to know this language to further their studies abroad for specialization purposes when they finish their schooling in their various countries. Composed of three integrated modules, its purpose is to bring those students to satisfy their language and communication needs. It emphasizes critical thinking and favors the acquisition of the language through the natural route of development as it is learnt by native speakers. This course is grounded on a functional/notional syllabus based on what students need and want to know.
Can Topic Familiarity Override Language Proficiency in Reading Comprehension?
Authors: Mahmoudi Soheil , Mahmoudi Asgar
Published: May 2017

The present study investigated the impact of topical knowledge and language proficiency on the reading comprehension of Iranian EFL students. The Oxford Placement Test (OPT) was used at the beginning of the study to divide the students into two groups of low and high proficiency. Both the high and low proficiency students later read two texts of almost the same level of difficulty but different in terms of their familiarity to the students. The obtained results indicated that topic familiarity cannot override language proficiency in reading comprehension; that is, low-proficiency students could not catch up with high-proficiency students even in familiar topics.
Research on the Image Culture — A Narrative Study on Jennifer Egan’s The Keep
Authors: Nie Baoyu
Published: May 2017

Renovating the Gothic tradition by applying a male voice to narrate the story and by leaving it an open ending in The Keep, Jennifer Egan revitalizes the Gothic fiction and at the same time makes it her own. The metafictional narrative in the story is noticed by the interruptions of another character’s voice into the ongoing narrative of the main story. However, Egan’s tactics, do not achieve at the expense of character and story; all the characters in this fiction are imprisoned either physically or mentally. In The Keep, Egan takes a bird’s eye view of the image culture, it also concerns more about our connectedness with technology and how that connection changes the way that who we are to ourselves and who we are to each other. So often we are dealing with something ephemeral and virtual instead of actual beings, our measure of what they mean to communication is very different as well.
Corpus-based Study on African English Varieties
Authors: Xu Xiaohui
Published: May 2017

Corpus-based research is more and more used in linguistics. English varieties are used a lot in daily communications throughout the world. African English varieties are discussed in this paper, including West African English, East African English and South African English. Kenya and Tanzania corpus is the main target corpus while Jamaica corpus is used as a comparative one. The tool used is AntConc 3.2.4.
Configuración actual del comercio exterior en la provincia de León = Current foreign trade framework in the province of León
Authors: Placer Galán José Luis
Published: May 2017

La reciente crisis económica y la contracción de la demanda interna han impulsado un creciente interés por los mercados exteriores. Esta investigación pretende caracterizar la configuración actual del comercio exterior de la provincia de León, tanto en lo relativo a los productos como a los mercados geográficos de origen y destino. Para ello se emplean una serie de indicadores, ampliamente contrastados en la investigación económica, que permiten identificar: el grado de apertura de la economía provincial leonesa; la propensión exportadora y la dependencia importadora; el grado de concentración, por producto y mercados, de sus flujos comerciales exteriores; la especialización exportadora y la ventaja comparativa sectorial; la composición inter o intra-industrial del comercio exterior; y la distribución geográfica de los flujos comerciales de la economía leonesa con los mercados exteriores. Para todo ello se utilizan los datos correspondientes al período 2010-2014, que coinciden con la fase central de la crisis económica y el comienzo de la recuperación. El trabajo incluye un anexo metodológico que explica la manera de calcular cada uno de los indicadores utilizados y la interpretación de los resultados posibles.

The recent economic crisis and internal demand contraction have encouraged the emerging interest in international markets. This study aims at featuring the current foreign trade framework of the province of Leon, in regards to both import and export products and geographical markets. For that purpose, several indexes, widely verified in this study, have been utilized to identify the trade openness level of Leon economy, its export propensity, import dependence as well as the concentration level for products and internal trade flows. Leon export specialization, its comparative advantage by sector, the inter-intra-industry trade composition and geographical distribution of trade with international markets have been likewise included in this study. For that reason, data from 2010 to 2014 have been collected, related to the period of the economy crisis and the beginning of its recovery. This paper includes an appendix to explain the methodology to calculate each index and its interpretation of potential results.
Influence of thyroid gland in women with abnormal uterine bleeding in reproductive age group
Authors: Marimuthu Kavitha , Loganathan Malarvizhi
Published: May 2017

Background: Abnormal Uterine Bleeding is a common complaint encountered in Gynaecology OPD. It occurs in 9-14% of women from Menarche to Menopause affecting quality of life imposing financial burden. Thyroid dysfunction causes broad spectrum of reproductive disorders from abnormal sexual development, menstrual irregularities, infertility and premature menopause. Thyroid disorders are 10 times more common in women and increased prevalence of thyroid disorders in women is possibly due to auto immune nature.Methods: This Prospective study population consisted of 250 women attending the Gynaecology Outpatient Clinic, in Government Dharmapuri Medical College Hospital, with complaints of bleeding problems during menstruation in the age group of 18 to 45 years.Results: Of 250 cases of abnormal uterine bleeding in reproductive age group attending the outpatient department about 68 cases have thyroid dysfunction. The common thyroid dysfunction in our study was hypothyroidism which comprises about 15.6% similarly other thyroid dysfunction are hyperthyroidism in 7.2% and subclinical hypothyroidism in 3.2% and subclinical hyperthyroidism 1.2%.Conclusions: It brings into focus the increased incidence of hypothyroidism among women with menorrhagia and amenorrhea. And increased incidence of hyperthyroidism in women with oligomenorrhea. Early detection by selective screening and specific pharmacotherapy for subclinical thyroid disease early in the course of the disease will prove to be a superior alternative to surgical treatments like hysterectomy.
Editorial
Authors: Editorial Comitê
Published: May 2017

 

 
El empresariado de la obra pública y los	grupos políticos durante el galvismo. Santa Fe (Argentina), segunda mitad del siglo XIX
Authors: Garcilazo Romina
Published: May 2017

El presente artículo tiene como objetivo analizar, a partir del enfoque de redes sociales, la función adquirida por el empresariado rosarino –ligado a la obra pública– en el ámbito político. Para acercarnos a este tópico, tomaremos como escenario exploratorio la gestión del gobernador José Gálvez en Santa Fe (1886-1890) por haber sido uno de los gobiernos que hizo de la ampliación de la infraestructura urbana un eje central de su gestión y su relación con el empresario más controvertido y dinámico en la obra pública, como fue Juan Canals (uno de los pocos radicados en Santa Fe que se dedicó a esta actividad). El principal aporte del trabajo es ilustrar la complejidad de las tramas vinculares construidas por el empresariado rosarino alrededor de las arcas del poder político santafesino durante dicho periodo, temática escasamente explorada por la historiografía local.
La Conferencia de Chapultepec (1945): El nacionalismo económico latinoamericano frente a la política librecambista de Estados Unidos
Authors: Galindo José
Published: May 2017

El presente artículo busca ilustrar el cambio de modelo económico en América Latina a partir de la crisis de 1929 y la transición del modelo enfocado “al exterior” al “mercado interno”, utilizando, principalmente, el caso de México. Asimismo, se explicarán los efectos de la segunda guerra mundial en las principales economías latinoamericanas y el surgimiento de políticas explícitas de industrialización en dichos países. Basándonos en el análisis de fuentes primarias y secundarias, se examinará la llamada Conferencia de Chapultepec (1945) con énfasis en la estructura del debate y contraste en las posturas de los países latinoamericanos, interesados en mantener y profundizar el nacionalismo económico y sus procesos de industrialización, que lograron moderar las propuestas económicas de corte librecambista impulsadas por Estados Unidos.
Datos bibliométricos y cienciométricos de Acta Pediátrica de México
Authors: Partida Gaytán Armando
Published: May 2017

En los últimos 3 años, Acta Pediátrica de México (APM) ha reconfigurado su proceso de gestión editorial, pero la esencia de APM continúa siendo la misma que hace 37 años propusiera el Comité Editorial presidido por el Dr. Jorge Espino Vela: difundir los resultados de la labor asistencial, docente y de investigación de nuestras instituciones de salud, y en beneficio de la niñez mexicana.
La siesta y el exceso de peso en escolares de Mérida, Yucatán. Estudio analítico transversal
Authors: Méndez-Domínguez Nina , Prelip Michael , Aguilar-Vargas Esteban , Avilés-Ibarra Oswaldo , Dickinson Federico
Published: May 2017

INTRODUCCIÓN: en Mérida, Yucatán, México, la siesta es una costumbre arraigada que hace referencia al período dedicado a dormir después de almorzar.OBJETIVO: describir el hábito de la siesta y su asociación con el exceso de peso en los escolares de primaria.MATERIALES Y MÉTODOS: estudio transversal prolectivo desarrollado en 2012 en una muestra probabilística de 2,104 escolares procedentes de 16 escuelas públicas aleatoriamente seleccionadasen Mérida, Yucatán.RESULTADOS: se observó que los escolares que hacen siesta (≥ 3 veces/semana, ≥ 2 horas/día) son más propensos al exceso de peso (z = 2.73, p = 0.01); realizan significativamente menos ejercicio (z = -5.91, p < 0.00); duermen menos durante la noche (z = -17.59, p = 0.01) y consumen menos frutas y verduras (z = -2.59, p = 0.01). También ven más horas de televisión.DISCUSIÓN: la costumbre de la siesta, a pesar de ser un hábito muy arraigado, debe ser limitada en tiempo, para no afectar el estado nutricional de los escolares meridanos al favorecer el sedentarismo.
Enfermedad de Niemann Pick tipo-A. Presentación de 12 casos
Authors: Zarco-Román Jorge , Romero- Gómez Hugo Emmanuel , Carbajal-Rodríguez Luis
Published: May 2017

INTRODUCCIÓN: la enfermedad de Niemann Pick tipo A es una enfermedad hereditaria de depósito lisosomal, debida a un déficit de la enzima esfingomielinasa ácida, lo que da lugar a la acumulación de esfingomielina en las células del sistema reticuloendotelial y nervioso central.OBJETIVO: se describe el curso de la enfermedad de Niemann Pick tipo A en 12 pacientes: tres niños y nueve niñas, con edades entre 3 a 33 meses.MATERIAL Y MÉTODOS: estudio retrospectivo efectuado con base en la información de los expedientes de 12 pacientes, evaluados mediante un examen físico completo, oftalmológico, análisis de laboratorio, ultrasonido de abdomen, tomografía axial computarizada o resonancia magnética nuclear cerebral, radiografías de tórax, ecocardiograma, electroencefalograma, potenciales evocados auditivos y visuales, serie esofagogastroduodenal y serie ósea. Se obtuvo información sobre enfermedades intercurrentes y causas de muerte.RESULTADOS: la sintomatología comenzó en promedio a los 5.9 meses (2 a 16 meses) y el diagnóstico definitivo se realizó a la edad de los 15.6 meses (3 a 33 meses) a través del cuadro clínico sugestivo, con presencia de células espumosas en el aspirado de médula ósea 12/12 (100%) y deficiencia de la enzima esfingomielinasa ácida en 12/12 pacientes (100%); la biopsia hepática fue sugestiva de enfermedad por atesoramiento en 5/12 (41.6%). Las manifestaciones clínicas por orden de frecuencia fueron: hepatoesplenomegalia y afección neurológica en 12/12 (100%), alteración pulmonar 11/12 (91.6%), hematológica 9/12 (80%), oftalmológica con mancha rojo cereza 9/12 (75%), ósea 6/12 (50%), y cardiaca 4/12 (33.3%). Únicamente hubo antecedente de consanguinidad en 4 familias (33.3%).CONCLUSIONES: el curso clínico de la enfermedad de Niemann Pick tipo A es muy similar entre los pacientes afectados, el primer dato clínico detectado es la hepatoesplenomegalia. Los pacientes están asintomáticos los primeros 4 meses de vida, posterior a los cuales presentan un curso neurodegenerativo que conduce a la muerte antes de los 3 años.
Markov bases for two-way change-point models of ladder determinantal tables
Authors: Aoki Satoshi , Hibi Takayuki
Published: May 2017

To evaluate a fitting of a statistical model to given data, calculating aconditional $p$ value by a Markov chain Monte Carlo method is one of the effective approaches. For this purpose, a Markov basis plays an important role because it guarantees the connectivity of the chain for unbiasedness of the estimation, and therefore is investigated in various settings such as incomplete tables or subtable sum constraints. In this paper, we consider the two-way change-point model for the ladder determinantal table, which is an extension of these two previous works. Our main result is based on the theory of Groebner basis for the distributive lattice. We give a numerical example for actual data.
Job Mobility and Subjective Well-being in Europe. Do Highly Mobile Workers Feel Worse?
Authors: Meil Gerardo , Romero-Balsas Pedro
Published: May 2017

Una de las consecuencias de la globalización es el aumento de la movilidad por motivos de trabajo. Esta movilidad tiene efectos positivos y negativos sobre el bienestar de las personas. Basándonos en las dos oleadas (2007 y 2011) de la encuesta Job Mobilities and Family Life, se analizará el impacto que tienen las transiciones en la movilidad sobre el bienestar subjetivo, controlando la influencia de otras transiciones vitales relevantes (pareja, parentalidad, salud e ingresos) así como el sexo. El análisis se basa en la técnica de la regresión lineal ordinaria. Los resultados evidencian generalizados cambios en los niveles de estrés y satisfacción. Estos cambios no son todos aleatorios, sino que guardan relación con las transiciones en la movilidad y demás variables consideradas. Mientras que los cambios en la satisfacción con el trabajo están condicionados por las transiciones en la movilidad en la dirección esperada, los efectos sobre la satisfacción con la vida en general dependen más de los efectos sobre la satisfacción con el trabajo en función de las ventajas e inconvenientes de la movilidad. En el caso de los niveles de estrés, no se observa una relación clara con la movilidad, una vez controlados otros cambios relevantes.

Recibido: 04.02.2017
Aceptado: 06.03.2017
La Unión Europea en la Gobernanza Global
Authors: Mariscal Nicolás
Published: May 2017

Dos grandes procesos de finales del siglo xx y comienzos del xxi han condicionado el surgimiento de la gobernanza global: los poderes emergentes y la globalización. La gobernanza global es un proceso y una estrategia en que una pluralidad de actores públicos y privados de diversos niveles interactúan y cooperan sin un Gobierno común, para manejar problemas específicos desnacionalizados o proveer bienes públicos transnacionales. Es una casa en medio del camino entre la anarquía internacional y un Estado mundial. La Unión Europea trata de ser un actor global y para ello ha elaborado en el presente siglo diversas estrategias europeas globales. Aquí se presenta la última de 2016 con cinco grandes prioridades. Como actor diplomático la UE es percibida y valorada diferentemente por otros que con ella interactúan en la gobernanza global.

Recibido: 15.11.2016
Aceptado: 22.02.2017
Constructing Europe Through Mobility
Authors: Audikana Ander , Kaufmann Vincent
Published: May 2017

La promoción de la movilidad a través del desarrollo del principio de libre circulación de personas, bienes, servicios y capitales ha constituido una piedra angular del proceso de integración europea. Este artículo ofrece una síntesis de las diferentes políticas europeas que han contribuido al desarrollo de este principio. Tres tipos de políticas serán identificadas y analizadas: las políticas de regulación de la movilidad, las políticas de inversion para equipar el territorio europeo, y las políticas de incitación a la movilidad. Este análisis contribuye a contextualizar la crisis actual del principio de libre circulación y aboga por una crítica analítica (ni aislacionista, ni ultraliberal) de la movilidad.

Recibido: 07 febrero 2017
Aceptado: 16 marzo 2017
Publicación en línea: 28 mayo 2018
Preface: Recent Advances in Natural Language Processing
Authors: Aguilar César , Sierra Martínez Gerardo
Published: May 2017

We hope these articles may provide the reader with a wider scope for the current investigations that are being lead within the computational linguistics and natural language process fields as well as their implementation on current social and media problems.
Inventarisasi Teritip Non-Indigenous yang Menempel pada Ocean Going Vessel di Pelabuhan Tanjung Intan Cilacap
Authors: Prabowo Romanus Edy , Ardli Erwin Riyanto
Published: May 2017

Portof Tanjung Intan Cilacapis one of four major international shipping ports located in JawaIslandand among 85 ports throughout Indonesia. International shipping ports are exposed for non-indigenous species including barnalces as a consequence of shipping traffic. Barnacle is the most common marine fouling found in ship’s hull and ballast water of ocean going vessel. This work was aimed at knowing which barnacle species were passively transported on such vessels hulls, in order to map and monitor non-indigenous species invasion in the area. Four vessels of different origins were investigated between April and November 2009. Among four vessels, three of them were clean. A cosmopolite non-invasive species were found on a ship of Ukrainan origin, Amphibalanus amphitrite., which also occur dominantly in the port of Tanjung Intan Cilacap. This port was considered at no introduction risk of non-indigenous species.
A Diagram of Structure Evolution of Pb(Zn1/3Nb2/3) O3-9%PbTiO3 Relaxor Ferroelectric Crystals with Excellent Piezoelectric Properties
Authors: Zhou Hua , Li Tao , Zhang Nian , Mai Manfang , Ye Mao , Lin Peng , Huang Chuanwei , Zeng Xierong , Huang Haitao , Ke Shanming
Published: May 2017

Piezoelectric properties are of significant importance to medical ultrasound, actuators, sensor, and countless other device applications. The mechanism of piezoelectric properties can be deeply understood from structure evolutions. In this paper, we report a diagram of structure evolutions of the Pb(Zn1/3Nb2/3)0.91Ti0.09O3 (PZN-9PT) single crystal with excellent piezoelectric properties among the orthorhombic, tetragonal, and cubic phases with temperature increasing from room temperature to 220 C. Through fitting the temperature dependence XRD curves with Gauss and Lorenz functions, we obtained the evolutions of the content ratio of three kinds of phases (orthorhombic, tetragonal and cubic) and the lattice parameters of the PZN-9PT system with the changes of temperature. The XRD fitting results together with Raman and dielectric spectrums show that the phase transitions of PZN-9PT are a typical continuous evolution process, very similar to the phase transition of paraffin from solid to liquid. Additionally, resonance and anti-resonance spectrum show excellent piezoelectric properties of the crystals, which probably originate from the nano twin domains, as demonstrated by the TEM images. Of particular attention is that the thickness electromechanical coupling factor kt is up to 72%.
Spectral and Spatial Cloud Detection Onboard for Hyperspectral Remote Sensing Image
Authors: Li Haoyang , Zheng Hong , Han Chuanzhao , Wang Haibo , Miao Min
Published: May 2017

It is strongly desirable to accurately detect the clouds in hyperspectral images onboard before compression. However, conventional onboard cloud detection methods are not appropriate to all situation such as shadowed cloud or darken snow covered surfaces which are not identified properly in the NDSI test. In this paper, we propose a new spectral–spatial classification strategy to enhance the orbiting cloud screen performances obtained on hyperspectral images by integrating threshold assisted exponential spectral angle map (TESAM), adaptive Markov random fields (aMRFs) and dynamic stochastic resonance (DSR). First, TESAM is performed to classify the cloud pixels coarsely based on spectral information. Then aMRFs is performed to do optimal process by using spatial information, which improved the classification performance significantly. But some misclassification points still exist after aMRFs processing because of the noise of data in the onboard environment. DSR is used to eliminate misclassification points in binary labeling image after aMRFs. Taking level 0.5 data from hyperion as dataset, the average overall accuracy of the proposed algorithm is 96.28% after test. The method can provide an accurate cloud mask for the on-going EO-1 images and the similar satellites with the same spectral settings without manual intervention. The experiment indicate that the proposed method reveals better performance than the classical onboard cloud detection or current advanced hyperspectral classification methods.
Expression of Pokeweed Antiviral Protein Isoform S1 (PAP-S1) and of Ricin-A-Chain/PAP-S1 Novel Fusion Protein (RTA/PAP-S1) in Escherichia coli and Their Comparative Inhibition of Protein Synthesis in Vitro
Authors: Hassan Yasser , Ogg Sherry
Published: May 2017

Fusion protein therapeutics engineering is advancing to meet the need for novel medicine. Herein, we further characterize the development of novel RTA & PAP-S1 antiviral fusion proteins. In brief, RTA/PAP-S1 and PAP-S1/RTA fusion proteins were produced in both cell free and E. coli in vivo expression systems, purified by His-tag affinity chromatography, and protein synthesis inhibitory activity assayed by comparison to the production of a control protein, CalmL3. Results showed that the RTA/PAP-S1 fusion protein is amenable to standardized production and purification and has both increased potency and less toxicity compared to either RTA or PAP-S1 alone. Thus, this research highlights the developmental potential of novel fusion proteins with reduced cytotoxic risk and increased potency.
MENELUSURI TEORI CHAOS DALAM HUKUM MELALUI PARADIGMA CRITICAL THEORY
Authors: , Faisal
Published: May 2017

Abstract

The paper will study a dialectic domain of chaos theory of Charles Sampford’s law by using critical theory paradigm. The paper will present results of the study as follow: first, melee concept of chaos theory in any law may be uniformed by using ontological paradigm of the critical theory based on historical realism. Second, an intercept of ideas segments of Sampford’s chaos theory as a critical body can be seen from its paradigm epistemology they had built. Sampford developed his epistemology, namely both interpreter and reality are dialectic; the statement is similar with dialogic-dialectic’s one of critical paradigm. Third, the equality of essences between Sampford’s chaos theory and critical theory might be measured if methodological presentation of the critical theory paradigm about transactional-subjectivist is examined. Therefore, the reality is understood completely, impartially or mechanistically. As does chaos theory, Sampford elaborated it in his dialectical-integrative methodology, actually chaos theory of Sampford is trying to reject dualistic’s and reductionist’s view of points in attempts of making the reality is still intact. Based on what is held by critical cliques that the analysis focus will be based on contextual matter.

Key words: Chaos theory, Critical theory, paradigm, positivism of law

Abstrak

Tulisan ini akan di arahkan untuk menelusuri ruang dialektis teori chaos dalam hukum charles Sampford dengan paradigma citical theory. Sebagaimana penelusuran yang dapat disajikan dalam tulisan ini, adalah; pertama, konsep melee dalam teori chaos dalam hukum dapat saja di seragamkan dengan ontologi paradigma critical theory dimana berpijak pada realisme historis. Kedua, bertemunya ruas berfikir teori chaos Sampford sebagai sosok critical dapat dilihat dari epistemologi paradigma yang dibangun keduanya. Sampford membangun epistemologinya yaitu penafsir dan realitas itu dialektis, hal ini senada dengan dialogis-dialektikal yang dimiliki paradigma critical. Ketiga, kesepadanan esensi antara teori chaos Sampford dan critical dapat saja terukur bila melihat sajian metodologi paradigma critical mengenai transaksional-subjektivis. Dengan demikian realitas di pahami secara utuh tidak parsial ataupun mekanistik. Sebagaimana teori chaos Sampford menguraikan hal ini pada metodologi dialektikal- integratif, sejatinya teori chaos Sampford sedang menolak pandangan dualistik dan reduksionis agar realitas terlihat lebih utuh. Berdasarkan dengan apa yang di anut oleh kalangan critical bahwasannya fokus analisa akan di dasarkan pada hal yang kontekstual.

Kata kunci: Teori chaos, Teori Kritis, Paradigma, Positivisme Hukum
Machiavellianism and Aspirations as Predictors of Quality of Life and Subjective Happiness among Interning Doctors and Practicing Doctors
Authors: Pirani Alifia , Agarwal Swati
Published: May 2017

The present quantitative study adopts a between group design to assess the difference between interning doctors and practicing doctors in the levels of Machiavellianism, aspirations, quality of life and subjective happiness. A correlational design was also employed to determine if quality of life and subjective happiness can be predicted by Machiavellianism and its dimensions of amorality, desire for status, desire for control and distrust of others; and aspirations and its dimensions of wealth, fame, image, personal growth, relationships, community, and health. Purposive Sampling and Snowball Sampling techniques were used to collect data from 100 interning and 100 practicing doctors. Independent t-test results showed that practicing doctors were significantly higher on Machiavellianism and its dimensions of amorality, desire for status and distrust of others; aspirations, its dimension of image, community, health, and physical quality of life. Interning doctors were higher on desire for control, fame aspirations, psychological health and overall quality of life. Stepwise multiple regression analysis showed that personal growth and health aspirations predicted quality of life in interning doctors and Machiavellianism, amorality; wealth, fame, image, community and health aspirations predicted quality of life among practicing doctors. Health aspiration was a predictor of subjective happiness in interning doctors. In practicing doctors, amorality, desire for status, distrust of others; wealth, fame, image, personal growth, relationships, community and health aspirations were predictors of subjective happiness. In present day India the rapidly changing and overburdened healthcare system has affected the well being of health care professionals and the present study throws light on to some factors that may influence quality of life and happiness of doctors in India.  
Importance of Monitoring and Evaluation in the Sustainability of Constituency Development Fund (CDF) Projects in Kenya
Authors: Biwott Tecla , Egesah Omar , Ngeywo Javan
Published: May 2017

The Kenya Government Constituency Development Fund (CDF) projects contribute immensely in initiating and implementing sustainable development projects in all parts of Kenya, and it is essential to track processes and impact of such projects. Monitoring and Evaluation helps project managers in keeping track the implementation of the projects and its prudence in the utilization of the resources. It provides decision makers with a strategy to plan for sustainability of the projects and guidance for future endeavors. Sustainability is key to stakeholders who in real sense need to be involved throughout the project and program cycles. This study evaluates the role of monitoring and evaluation on the sustainability of Kenya Government Constituency Development Fund (CDF) projects in Kenya. Literature review was used to collect information which was peer reviewed by a team of four. Findings show a great influence of monitoring and evaluation on the utility and sustainability of the projects implemented through CDF funding. It is therefore, prudent to embed Monitoring and Evaluation in all the Projects funded by the Kenya Government through constituency development fund (CDF).  
Javanese Ulama as a Part of Ulama Jawi Community and Their Connection with Ottoman Empire
Authors: Nuha Ulin
Published: May 2017

16th century Javanese Muslim is like a newcomer in a large family called the Islamic civilization. At the same time, the Ottoman Empire at that time the great empire which emphasized Islam as a source of law is the only manifestation of the Islamic Caliphate remained. Is a must, Javanese Muslims who had entered the Islamic civilization met with the Ottoman Empire. Meetings that occur through several channels including the Hajj, political, trade and networking all these scientists actually have the benefit of both nations. Java clerics who are part of the community of clerics Jawi is the pioneer generation of meeting the other two nations in the continent.
Presence of the Ossific Nucleus and Risk of Osteonecrosis in the Treatment of Developmental Dysplasia of the Hip
Authors: Chen Cynthia , Doyle Shevaun , Green Daniel , Blanco John , Scher David , Sink Ernest , Dodwell Emily R.
Published: May 2017

Background:

Concern for increased risk of osteonecrosis in hips with an absent ossific nucleus has led some surgeons to delay reduction in the treatment of developmental dysplasia of the hip (DDH) until the ossific nucleus is present. A previous meta-analysis reported a potential protective effect against high-grade osteonecrosis (II to IV) when the ossific nucleus was present. With a greater number of publications on this topic, revisiting this analysis is warranted. The aim of this meta-analysis was to systematically review and analyze the best clinical evidence regarding the association between the status of the ossific nucleus and development of osteonecrosis following the treatment of DDH.

Methods:

MEDLINE, Embase, and Cochrane databases were systematically searched for studies including the status of the ossific nucleus and rate of osteonecrosis after open and closed reductions for the treatment of DDH. Study characteristics and risk estimates were extracted. Study quality was assessed using the Newcastle-Ottawa Scale. Pooled effect estimates were calculated using a random-effect model. Meta-regression assessed the relationships of reduction method, study quality, mean age at reduction, surgical approach, method of ossific nucleus assessment, and duration of follow-up to the odds of osteonecrosis.

Results:

In the 21 observational studies (18 retrospective, 3 prospective) that were included, osteonecrosis developed in 20.4% of the hips in which the ossific nucleus was present at reduction compared with 21.2% of the hips in which the ossific nucleus was absent. Presence of the ossific nucleus was not associated with decreased odds of any grade of osteonecrosis (odds ratio [OR] = 0.70, 95% confidence interval [CI] = 0.43 to 1.12) or of more severe osteonecrosis of Grades II to IV (OR = 0.70, 95% CI = 0.30 to 1.17). Meta-regression did not show any effect of the mean age at reduction, reduction method, surgical approach, study quality, minimum or mean duration of follow-up, method of ossific nucleus imaging, or osteonecrosis classification system on the relationship between presence of the ossific nucleus and the risk of osteonecrosis.

Conclusions:

The current literature does not support the hypothesis that presence of the ossific nucleus at reduction is associated with lower risk of osteonecrosis. Prospective studies with long-term follow-up and blinded assessors are warranted to optimally evaluate the relationship between potential risk factors and the development of osteonecrosis.

Level of Evidence:

Prognostic Level IV. See Instructions for Authors for a complete description of levels of evidence.
Return to Play and Patient Satisfaction After ACL Reconstruction
Authors: Nwachukwu Benedict U. , Voleti Pramod B. , Berkanish Patricia , Chang Brenda , Cohn Matthew R. , Williams Riley J. , Allen Answorth A.
Published: May 2017

Background:

Return to play and patient satisfaction after anterior cruciate ligament reconstruction (ACLR) have been inconsistently studied. The purposes of this study were to (1) investigate rates and predictors of return to play after ACLR, (2) evaluate patient satisfaction after ACLR, and (3) analyze the relationship between return to play and satisfaction with the result of ACLR.

Methods:

Eligible patients were active athletes included in an institutional ACL registry who had undergone ACLR and had been followed for a minimum of 2 years. A questionnaire was administered to elicit information regarding factors associated with return to play, sports performance, reinjury, and overall patient satisfaction. The Wilcoxon-Mann-Whitney U test was used to compare return to play with patient satisfaction. Multivariable logistic regression was used to identify demographic, sports, and clinical factors associated with return to play.

Results:

Two hundred and thirty-two patients with a mean age of 26.7 years (standard deviation [SD] = 12.5 years) who had been followed for a mean of 3.7 years were enrolled. Of 231 patients who responded to the return-to-play question, 201 (87.0%) had returned to play, at a mean of 10.1 months; of 175 athletes eligible to return to their prior level of competition, 89.1% had done so. Overall satisfaction was high: 85.4% were very satisfied with the outcome and 98.1% stated that they would have surgery again. Patients were more likely to respond “very satisfied” if they had returned to play (p < 0.001). Use of a patellar tendon autograft (odds ratio [OR] = 5.63, 95% confidence interval [CI] = 1.32 to 25.76) increased the chance of returning to play whereas playing soccer (OR = 0.23, 95% CI = 0.08 to 0.66) or lacrosse (OR = 0.24, 95% CI = 0.06 to 0.99) preoperatively decreased the likelihood of returning to play.

Conclusions:

The rates of return to play and patient satisfaction are high after ACLR in active athletes. The use of patellar tendon autograft increased the likelihood of returning to play whereas preinjury participation in soccer and lacrosse decreased these odds. Additionally, patients who returned to play were more likely to be very satisfied with the result of the ACLR.

Level of Evidence:

Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
Surgical Management of Acute Distal Biceps Tendon Ruptures
Authors: Savin David D. , Watson Jonathan , Youderian Ari R. , Lee Simon , Hammarstedt Jon E. , Hutchinson Mark R. , Goldberg Benjamin A.
Published: May 2017

➤ Acute distal biceps tendon ruptures are uncommon injuries that often affect young active males and typically result from an eccentric load on the dominant upper extremity.

➤ Surgical treatment may be indicated to prevent substantial weakness in supination and flexion that can occur with nonoperative treatment.

➤ Nonoperative management should be reserved for elderly or less active patients with multiple comorbidities, especially when the injury involves the nondominant arm.

➤ Operative management can be performed using a single-incision or dual-incision technique, with multiple surgical options for tendon-to-bone fixation.

➤ Single-incision repair techniques are more likely to be complicated by a transient neurapraxia, most often involving the lateral antebrachial cutaneous nerve, while dual-incision repair techniques are more likely to be complicated by heterotopic ossification and stiffness.