bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengaruh Kepemimpinan Dan Sarana Prasarana Olahraga Terhadap Prestasi Sekolah Di Bidang Olahraga
Authors: Fraliantina Inggri Andrea
Published: February 2019

Penelitian ini merumuskan tentang seberapa besar pengaruh kepemimpinan kepala sekolah terhadap prestasi sekolah di bidang olahraga? Seberapa besar pengaruh sarana dan prasarana olahraga terhadap prestasi sekolah di bidang olahraga? Seberapa besar pengaruh kepemimpinan kepala sekolah dan sarana prasarana pendidikan olahraga secara bersama-sama terhadap prestasi sekolah di bidang olahraga?. Tujuan penelitian ini untuk menganalisis pengaruh kepemimpinan kepala sekolah terhadap prestasi sekolah di bidang olahraga, menganalisis pengaruh sarana dan prasarana olahraga terhadap prestasi sekolah di bidang olahraga, menganalisis pengaruh kepemimpinan kepala sekolah dan sarana prasarana pendidikan olahraga secara bersama-sama terhadap prestasi sekolah di bidang olahraga. Hasil penelitian: kepemimpinan kepala sekolah berpengaruh signifikan terhadap prestasi sekolah di bidang olahraga, sarana dan prasarana pendidikan olahraga berpengaruh signifikan terhadap prestasi sekolah di bidang olahraga, dan kepemimpinan kepala sekolah dan sarana prasarana pendidikan olahraga secara bersama-sama berpengaruh signifikan terhadap prestasi sekolah di bidang olahraga.
Pengaruh Metode Pembelajaran Dan Motivasi Belajar Terhadap Hasil Belajar Passing Sepakbola
Authors: Ramadan Gilang
Published: February 2019

Tujuan dari penelitian ini adalah untuk mengetahui pengaruh dari metode pembelajaran latihan dan problem based  learning serta motivasi belajar terhadap hasil belajar passing sepakbola. Penelitian ini dilakukan pada siswa maupun siswi SMP Negeri 1 Rajadesa.Penelitian ini menggunakan treatment by level 2 x 2.Sampel terdiri dari 28 siswa maupun siswi. Teknik analisis data adalah analisis varians dua jalur (ANAVA) dan selanjutnya dilanjutkan dengan uji Tukey pada tingkat signifikansi α = 0, 05. Hasil penelitian ini menunjukkan bahwa (1). Nilai hasil belajar passing sepakbola pada perlakuan metode pembelajaran latihan (A1) lebih tinggi dari nilai metode pembelajaran problem based  learning (A2) di SMP Negeri 1 Rajadesa. (2). terdapat pengaruh interaksi antara metode pembelajaran (A) dan motivasi belajar (B) terhadap hasil belajar passing sepakbola di SMP Negeri 1 Rajadesa. (3). Nilai hasil belajar passing sepakbola pada perlakuan metode pembelajaran latihan motivasi belajar tinggi (A1B1) lebih tinggi dari nilai metode pembelajaran problem based  learningmotivasi belajar tinggi (A2B1) di SMP Negeri 1 Rajadesa. (4). Nilai hasil belajar passing sepakbola pada perlakuan metode pembelajaran latihan motivasi belajar rendah (A1B2) lebih rendah dari nilai metode pembelajaran problem based  learningmotivasi belajar rendah (A2B2) di SMP Negeri 1 Rajadesa.
Pengaruh Gaya Mengajar Dan Kemampuan Awal Terhadap Hasil Belajar Keterampilan Sepakbola
Authors: Setiawahyu Mochamad Iman
Published: February 2019

Tujuan penelitian ini untuk menggetahui perbedaan pengaruh antara metode gaya mengajar dan kemampuan awal terhadap hasil belajar keterampilan sepakbola yang memiliki tingkat kemampuan awal tinggi dan rendah. Penelitian ini juga ingin mengetahui adanya interaksi antara gaya mengajar dan kemampuan awal. Metode penelitian menggunakan metode eksperimen dengan desain faktorial 2 x 2 dengan sampel 40  siswa ekstrakulikuler klas VII di SMP Negeri 9 Bandung. Teknik pengambilan sampel menggunakan teknik rendom assignment. Sampel dibagi kedalam empat kelompok, yang masing-masing kelompok terdiri atas 10 siswa. Instrumen penelitian menggunakan alat ukur tes kecakapan dan keretampilan bermain sepakbola dari Nurhasan dan Vernon yang di modivikasi jarak dan ukuranya. Teknik analisis data yang digunakan adalah Analisis Variansi (ANOVA) yang dilanjutkan dengan Uji Tukey pada taraf signifikansi  0,05. Hasil penelitian bahwa (1) Ternyata skor rata-rata keterampilan sepakbola yang diajar dengan gaya mengajar resiprokal lebih tinggi dari rata-rata yang diajar dengan gaya mengajar komando A1= 202.68 > A2 = 186.94. (2) Adanya interaksi yang signifikan karena kedua kelompok tingkat kemampuan awal yang diajar dengan menggunakan gaya mengajar resiprokal dan komando. (3) Ternyata skor rata-rata keterampilan awal tinggi yang diajar dengan gaya mengajar resiprokal  lebih kecil dari rata-rata yang diajar dengan gaya mengajar komando A1B1 = 206.82 < A2B1 = 215.10. (4) Ternyata skor rata-rata keterampilan awal rendah yang diajar dengan gaya mengajar resiprokal  lebih tinggi dari rata-rata yang diajar dengan gaya mengajar komando A1B2 = 202.68 > A2B2 = 186.94
Penerapan Media Audio Visual VCD Terhadap Hasil Belajar Passing Dan Service Bawah
Authors: Aswara Agung Yuda
Published: February 2019

Tujuan penelitian ini adalah untuk mendapatkan informasi tentang: 1) penerapan media audio visual VCD terhadap hasil belajar keterampilan bolavoli khususnya passing bawah dan service bawah, 2) efektifitas pembelajaran passing bwah dan service bawah bola menggunakan media audio visual VCD dibandingkan dengan menggunakan metode konvensional. Dalam penelitian ini sampel yang digunakan adalah seluruh siswa laki-laki kelas VII SMP Negeri 2 Grati Kabupaten pasuruan. Penelitian ini menggunakan metode eksperimen. Pemberian perlakuan untuk masing-masing kelompok sebanyak 8 kali pertemuan dengan sekali pertemuan berdurasi 80 menit. Analisis menggunakan metode statistik paired Sample T-test kemudian dilanjutkan dengan metode statistik independent sample t-test. Hasil penelitian menunjukkan: penggunaan media audio visual VCD dalam pembelajaran dapat meningkatkan hasil belajar passing bawah dan service bawah.
Ensayos no destructivos y rehabilitación de elevadores de vehículos ferroviarios
Authors: Buenaño Moyano Luis Fernando , Castillo Cárdenas Edison Marcelo , Cuaical Angulo Bolívar Alejandro , Padilla Padilla Celin Abad
Published: February 2019

Se ha realizado el análisis del funcionamiento y la posterior rehabilitación de los elevadores electromecánicos de Ferrocarriles del Ecuador Empresa Pública (FEPP). Para comprobar el estado de cada uno de los elevadores se utilizó una matriz de valoración y ensayos no destructivos (END). La matriz de valoración identificó cada una de las anomalías y fallas que existían en los elementos de los elevadores. Los END se utilizaron para la identificación de discontinuidades en la soldadura empleada. Se realizó también la digitalización de los elevadores y el posterior análisis de esfuerzos en Ansys con el fin de determinar la carga a la cual pueden estar sometidos cada uno de los elevadores concluyendo que para levantar 55.65 t se debe utilizar un mínimo de 4 elevadores para asegurar un factor de seguridad de 1.13. Finalmente se procedió a la rehabilitación de los elevadores mediante el mantenimiento, y la sustitución o la implementación de cada uno de los elementos inspeccionados previamente. Luego de la rehabilitación se realizó una prueba de campo elevando un vagón panorámico de 17 t, y se evidenció el buen funcionamiento de los cuatro elevadores que se usarán en los talleres de mantenimiento de FEEP.
INFLUENCE OF AIR ENVIRONMENT CHEMICAL IMPUTITIES ON EXPRESSION OF TOLL-LIKE RECEPTORS AND CYTOKINE LEVELS OF ADOLESCENTS
Authors: Masnavieva L B , Efimova N V , Kudaeva I V
Published: February 2019

Emissions from oil refining, chemical industry, heat power industry, which are located in the Irkutsk region, cause a high level of air pollution in these areas. Personalized approach to assessing the risk of health disorders allows to set taxis to external influence. The aim of this study was to assess the level of expression of toll-like receptors (TLR) and cytokine content in adolescents with different risk of formation of the immune system disorders caused by the individual inhalant chemical load. Methods. The calculation of the individual chemical load, hazard quotient (HQ) of pollutants and hazard indexes (HI) and dysimmunity for 244 adolescents was carried out based on the data on air pollution and indoor air pollution, the organization of educational process and leisure time, anthropometric and spirometric indices. The content of interleukins-2 and -10, alpha and gamma interferons in the serum of adolescents was studied by the method of enzyme immunoassay. The level of expression of TLR-2 and TLR-4 was assessed by polymeric chain reaction. Results. Persons with an increased risk of developing the immune system pathology were identified as a result of calculating the individual chemical load. It has been stated that the risk of immunity disorders in adolescents living in industrial cities of the Irkutsk region was due to the presence of formaldehyde, nitrogen and sulfur dioxide in the air. While assessing the role of atmospheric and indoor air pollution level in the formation of HQ it was detected that indoor air pollution with formaldehyde was of primary importance. An increase in interleukin-2 and gamma-interferon concentration and decrease in the interleukin-10 concentration was stated with an increase of the air pollution level by chemical impurities that affect the immune system. Conclusion. Thus, the presence of relationships between the indicators of the immune system and increase of their expression with an increase of HI indicates mechanisms contingency of pro-and anti-inflammatory process in the development of adaptive reactions in adolescents under the influence of chemical air pollutants.
Enfoque Integral del Ingeniero del Siglo XXI: una Revisión de la Literatura
Authors: Montoya Suarez Lina Maria , Cock Ramírez Jorge Andres , Muriel Hurtado Santiago
Published: February 2019

Debido al crecimiento y desenvolvimiento del ingeniero del siglo XXI es fundamental conocer e identificar los diferentes enfoques en la actualidad. Este trabajo tiene como objetivo presentar los resultados de investigaciones encontrada en la revisión sistemática de la literatura, para identificar los principales enfoques de profesionales de la Ingeniería. Se concluye en seis enfoques diferentes que unidos materializan el conjunto de características propias de la actividad ingenieril, más específicamente, de quien se desenvuelven como Ingeniero del siglo XXI. Es importante mostrar en los resultados con mayor grado de detalle cada uno de estos enfoques encontrados como lo son: por competencia, social, investigación, innovación, integral, profesional que hace parte del perfil y las características profesionales.
Diseño de un sistema para la evaluación de la efectividad del lanzamiento en Boccia
Authors: Joan Acevedo Julie , Hoyos Cuartas Luz Amelia , Mendivelso Leal Rosa Helena
Published: February 2019

Objetivo: diseñar un sistema integrado que permita evaluar de forma objetiva la efectividad de los fundamentos técnicos del lanzamiento en Boccia, con el propósito de transformar la práctica y el entrenamiento de este deporte. Metodología: Esta investigación corresponde a un diseño tecnológico basado en el desarrollo de un test y un software, con pruebas de validación y pilotaje en un grupo experimental resultados, se desarrolló un sistema integrado que permiten determinar el nivel de efectividad de cada deportista y ubicarlo en una categoría: baja, regular, buena o excelente, para cada una de las variables, de acuerdo a su desempeño. Conclusión: El sistema permite identificar de forma objetiva la efectividad del lanzamiento discriminando el desempeño de cada uno de sus fundamentos técnicos, igualmente permite crear un esquema de juego para competencia, ubicando a los deportistas en el box más estratégico y brinda una herramienta de control para los entrenadores.
Arquitectura de un sistema de medición de bioparámetros integrando señales inerciales-magnéticas y electromiográficas
Authors: Callejas Cuervo Mauro , Vélez-Guerrero Manuel A. , Pérez Holguín Wilson Javier
Published: February 2019

Este trabajo presenta una arquitectura para la medición e integración de bioparámetros basado en unidades de procesamiento de movimiento inercial-magnético (MPUs) y electromiografía (EMG). Derivado de la arquitectura propuesta, se logró desarrollar un dispositivo llamado Imocap, el cual reúne y utiliza las mejores características de la tecnología MPU + EMG para realizar una medición completa en el segmento de brazo y antebrazo en el cuerpo humano. Se presenta en primer lugar la revisión bibliográfica de los métodos y herramientas para la captura del movimiento biomecánico, seguido de las técnicas y aplicaciones de la recolección de bioparámetros. Finalmente, se muestra la arquitectura y la descripción del sistema Imocap, algunas aplicaciones y discusión. Como trabajo futuro, Imocap tiene como objetivo proporcionar la información necesaria en un sistema de control electrónico para una plataforma de rehabilitación basada en exoesqueletos robóticos.
Reflexión sobre tres posturas en torno a la responsabilidad social. Incidencias en las organizaciones universitarias
Authors: Herrera Ospina José de Jesús
Published: February 2019

A partir de tres pensadores contemporáneos, Hans Jonas, Adela Cortina y Victoria Camps, se reflexionará sobre algunas cuestiones generales de la Responsabilidad Social (RS) y su incidencia en las organizaciones universitarias. El tema de la RS toca muchos ámbitos y el de la educación universitaria no es el de menos. Hoy se percibe la universidad como un lugar de encuentro de docentes, discentes y administrativos donde la responsabilidad es un asunto que atañe al diario vivir de la comunidad académica. Se aborda este tema desde una mirada filosófica que permita entender qué es hoy la Responsabilidad social universitaria, con miras a tener un punto de referencia que permita interpretarla de una manera adecuada.
Impacto de la satisfacción en la generación de compromiso laboral en trabajadores de la maquila mejicana
Authors: Sánchez Limón Mónica Lorena , Zerón Félix Mariana , Sánchez Tovar Yesenia
Published: February 2019

Se analizó la influencia que ejerce la satisfacción de los empleados en el compromiso de los trabajadores en el mercado laboral de la maquila mexicana. Para ello se utilizó una muestra de 100 trabajadores de una maquiladora de Ciudad Victoria, en Tamaulipas, México; los datos se analizaron mediante ecuaciones estructurales. Los resultados indicaron que la satisfacción influye positiva y significativamente en el compromiso laboral. De esta manera se logró obtener evidencia empírica que relaciona estas dos variables en el mercado laboral maquilador. Un hallazgo fue que los factores extrínsecos de Herzberg, Mausner y Snyderman (1959), en oposición a lo planteado por ellos, poseen la capacidad de motivar a los empleados.
Ingreso de Costa Rica a la OCDE. Consecuencias teóricas del caso del comercio
Authors: Arce Portuguez Rodolfo , Mora Martínez Esteban
Published: February 2019

El artículo es resultado de la investigación "Requisitos de ingreso a la OCDE y consecuencias de ser miembro: análisis exploratorio sobre los resultados del Comité de Comercio", cuyo objetivo es exponer algunas de las consecuencias teóricas para Costa Rica ante su decisión de adhesión a esa organización. Presenta posibles efectos sobre el fortalecimiento de las cadenas globales de valor (CGV), la generación de competencias laborales específicas, la necesidad de invertir en investigación, desarrollo e innovación, así como, entre otros, en el mejoramiento de los procesos logísticos y el cierre de brechas de infraestructura. Como corolario, el país centroamericano debe implementar buenas prácticas de gestión para su incorporación a esa organización.
Evaluación del desempeño del conglomerado floricultor mejicano: caso Baja California
Authors: Bernal Escoto Blanca Estela , Portal Boza Malena , Feitó Madrigal Duniesky
Published: February 2019

El presente artículo se enfoca en el análisis de resultados obtenidos al evaluar el grado de conformación del conglomerado floricultor del Estado de Baja California. La metodología utilizada es cuantitativa, de orden transaccional y de alcance descriptivo-aglomerativo. Para la recolección de la información se diseñó y aplicó un cuestionario previamente estructurado, dirigido a los 180 sujetos de estudio que conforman sus grupos de interés. El instrumento de recolección de datos se integra por 22 ítems, cuyos datos recabados fueron analizados con el paquete estadístico SPSS y el programa PyCX en Python, obteniéndose información relacionada con su estructura, tamaño, densidad, topología y propiedades estadísticas, así como el grado de interdependencia entre sus grupos de interés, permitiendo identificar al nodo hub.
Colloidal characteristics of aluminum hyd roxide dispersions depending on coagulant composition and pH regulator dosing method
Authors: Anushko Ruslan A. , Zyhmant Alesia V. , Savitskaya Tatsiana A. , Tsyhankova Nadzeia G. , Hrynshpan Dzmitry D.
Published: February 2019

The effect of aluminum coagulants composition and pH regulator dosing method on colloidal characteristics of aluminum hydroxide dispersions (diameter, particle size distribution, density and sedimentation rate of aggregates) was investigated by using of laser diffraction method. Highly basic polyaluminum chloride «Brilliant-50» was established to form aggregates of larger size and lower density than aluminum sulfate. Size and density of the aluminum sulfate aggregates were found to be a function of the pH dosing method (multi- or single-stage dosing). This effect became more evident when powdered coagulant was used as compared to its solution. According to computational study results hydration of aluminum polynuclear hydroxocomplexes increased with their molecular mass increasing, and consequently density of coagulation aggregates formed by them was suggested to decrease.
PROSES PRODUKSI, FUNGSI, PELUANG EKONOMI, DAN PENGEMBANGAN TENUN BUGIS PAGATAN KABUPATEN TANAH BUMBU KALIMANTAN SELATAN
Authors: Hendraswati Hendraswati
Published: February 2019

Kain tenun Pagatan merupakan salah satu warisan penting dalam kebudayaan Indonesiakarena mencerminkan pengetahuan masyarakat pendukungnya yang bernilai tinggi.Sayangnya, penelitian sosial yang membahas tentang tenun Indonesia masih sangat terbatas.Tujuan penelitian ini untuk melihat proses produksi, fungsi, nilai, dan peluang ekonomi, serta upaya pengembangan kain tenun Pagatan di Kabupaten Tanah Bumbu. Penelitian ini merupakan penelitian kualitatif. Data dikumpulkan melalui teknik observasi, wawancara mendalam, dan dokumentasi. Hasil penelitian ini menunjukkan bahwa tradisi menenun merupakan keterampilan yang dimiliki wanita migran Bugis Pagatan dalam mengolah benang menjadi kain. Kain dibuat secara tradisional menggunakan gedok. Fungsi kain tenun tersebut dapat terlihat dari penggunaannya sehari-hari dan saat upacara adat. Kain tenun ini memiliki simbol budaya, identitas sosial, dan etnik. Keindahan corak, kualitas bahan, dan kekhasan motifnya membuat kain ini memiliki nilai jual sehingga peluang ekonomi bagi para penenunnya. Upaya yang dapat dilakukan untuk melestarikan tenun Pagatan sebagai salah satu pakaian resmi di lembaga pemerintahan, perhelatan budaya, membangun pusat kerajinan tenun Pagatan, dan dijadikan materi muatan lokal di sekolah.
PENGEMBANGAN BUDIDAYA RUMPUT LAUT DI SUMBAWA BERBASIS TEORI TRIPLE HELIX
Authors: Sakinah Bintang Rizki
Published: February 2019

Indonesia is a unitary state consisting of clusters of large and small islands connected by wide oceans and has the potential to support the development of local and national economies to increase foreign exchange earnings, employment, and incomes of the population. One area in Indonesia that utilize the results of the sea is Sumbawa regency of West Nusa Tenggara. Based on the Decree of the Minister of Marine Affairs and Fisheries No. KEP.32 / MEN / 2010 on Establishment of Regions Minapolitan as amended by Decree of the Minister of Marine Affairs and Fisheries No. KEP.39 / MEN / 2011, Sumbawa as the one Minapolitan of 179 Minapolitan in Indonesia by commodities seaweed seed. Minapolitan is the conception of economic development of region-based marine and fisheries based on the principles of integration, efficiency, quality and speed. There are 6 sub-district as a point of land development seaweed in Sumbawa, one of which is the village of Labuhan kuris District of Lape with seaweed production reached 29.436 tonnes with utilization area growing as many as 1328.51 hectares. Given these commodities, Sumbawa opportunity to step forward does not seem difficult. However, the potential of it did not make the state of the local community shifted from the poverty line. To overcome this, the need for conductor linking between education, technology, and labor market through the application of the theory of the Triple Helix. The main thinking triple helix theory is the importance of synergy between academic, business, and government. This paper intends to elaborate on the opportunities and challenges minapolitan as a form of education and technology alignment and an application of the theory of the triple helix in improving community development and regional competitiveness. The results of this research that needed collaborate academic, business and government to seaweed cultivation development and make empowerment and welfare local community.Keywords: Empowerment, Minapolitan, Triple Helix, Education, Technology
Akut Pankreatit Tanılı Hastaların Klinik Ve Laboratuvar Özelliklerinin İncelenmesi
Authors: ERTAŞ Hasan , DURAN Cevdet , KESKİN Muharrem , GÜNEY İbrahim
Published: February 2019

Amaç: Bu çalışmanın amacı, akut pankreatitli hastaların demografik
ve klinik özelliklerini, etiyolojik faktörlerini, tanı yöntemlerini,
laboratuvar bulgularını, komplikasyonlarını ve tedavisini değerlendirmektir.

Gereç ve
Yöntem: Bu çalışmada Ocak 2010-Aralık 2015
tarihleri arasında Konya Eğitim ve Araştırma Hastanesi Dahiliye Kliniği’nde
akut pankreatit tanısı alan ve hastaneye yatırılan 254 hastanın (yaş≥18)
verileri retrospektif olarak tarandı. Her olgunun demografik özellikleri,
klinik, radyolojik ve laboratuvar bulguları, pankreatit etiyolojisi, hastalık
şiddeti, prognozu, hastanede yatış süresi, komplikasyonları ve sonuçları
kaydedildi.

Bulgular: Akut pankreatitli 254 hastanın 136 (%53.5)'sı  erkek ve 118 (%46.5)'i kadındı. Ortalama yaş
53.9±18.4 yıl olarak saptandı. Başvuru
sırasında en sık görülen şikayetler karın ağrısı ve bulantı-kusmaydı.
Etiyolojik nedenler 152 (%59.8) hastada idiyopatik, 60 (%23.6) hastada biliyer
ve 20 (%7.9) hastada hiperlipidemi olarak saptandı. Biliyer akut pankreatit
grubunda non-biliyer akut pankreatit grubuna kıyasla ALT (p<0.001), AST
(p<0.001), ALP (p=0.012), GGT (p=0.032), total bilirubin (p<0.001),
direkt bilirubin (p<0.001) ve amilaz (p=0.018) değerleri daha yüksekti. Nekrotizan
akut pankreatit grubunda yaş (p=0.004) ve Ranson skoru ortalamaları (p=0.016)
ödematöz akut pankreatit grubundan daha yüksekti.

Sonuç: Akut pankreatitte en sık
görülen etiyolojik faktörler idiyopatik ve biliyer nedenlerdir. Akut
pankreatitin ve klinik şiddetinin erken tanınması, terapötik stratejilerin
planlanması ve komplikasyonların önlenmesinde önemlidir.
Karaçam testere talaşının polipropilen kompozitlerin mekanik özelliklerine etkisi
Authors: NARLIOĞLU Nasır , ÇETİN Nihat Sami , ALMA Mehmet Hakkı
Published: February 2019

Günümüzde
çevreye olan duyarlılıktaki artış ile birlikte atık maddelerin geri
dönüştürülebilme konuları üzerine araştırmalar yapılmaktadır. Bu çalışmada polipropilen (PP) polimer matrise ilave edilen farklı oranlardaki karaçam testere talaşından elde
edilen kompozit malzemelerin mekanik özelliklerindeki değişiklikler incelenmiştir.
Kompozit üretimi için karaçam testere talaşı ile PP polimer matrisi çift
burgulu ekstruder kullanılarak kompozit pelletleri formuna dönüştürülmüştür.
Elde edilen pelletlerden sıcak pres kalıplama tekniği ile 250x250x2 mm
ebatlarında kompozit levhalar üretilmiştir. Daha sonra üretilen kompozit
levhaların ASTM standartlarına göre çekme, eğilme ve darbe direnci testleri
yapılmıştır. Mekanik test sonuçlarına göre en yüksek çekme direnci değeri %10
odun unu ilaveli kompozit örneğinde, en yüksek eğilme direnci ise %50 odun unu
ilaveli kompozit örneğinde tespit edilmiştir. Ayrıca kompozitler arasında en
yüksek darbe direnci, %20 odun unu ilaveli kompozit örneğinde elde edilmiştir.
Técnica infiltrativa del nervio mentoniano como alternativa para la anestesia de la primera molar decidua mandibular
Authors: Baldeon-Gutierrez Rosa
Published: February 2019

Objetivo: Comparar el efecto anestésico de la técnica infiltrativa del nervio mentoniano con la técnica troncular del dentario inferior en terapiapulpar de la primera molar primaria mandibular en odontopediatría. Metodología: La muestra estuvo conformada por 16 pacientes (11 niñosy 5 niñas) divididos en grupo de estudio (anestesia infiltrativa mentoniana) y grupo control (troncular dentario inferior) ambos con (n=8).Se empleó un diseño de investigación experimental basado en observación estructurada con la escala de Houpt modificada solo para llantoy movimiento y encuesta estructurada a partir de la escala analoga visual. Resultados: Los datos se analizaron mediante el paquete estadísticoSPSS versión 22, donde se observó que el grupo experimental tuvo un valor estadístico muy similar al grupo control reportando valores de p de 1.00. El 87.5% no manifestó dolor a la apertura y en la escala analoga visual un 62.5% no manifestó ninguna molestia. Conclusiones: Ambas técnicas resultaron conferir un buen efecto anestésico durante la apertura cameral, por lo que se puede confirmar que la técnica infiltrativa mentoniana es util para la anestesia pulpar solo de la primera molar primaria mandibular, tal como se reporta en otras investigaciones.  Palabras clave: Anestesia dental, pulpotomia, odontología pediátrica.

Abstract Objective: To compare the anesthetic effect of infiltrative technique of mental nerve with the nerve block technique inferior alveolar nerve for pulp therapy of the first mandibular molar decidua in children. Material and Methods: The sample consisted of 16 patients (11 boys and 5 girls) divided into a study group (infiltrative mentonian anesthesia) and control group (alveolar nerve block) both with (n = 8). We used an experimental research design based on structured observation with the Houpt scale modified only for crying and movement and a structured survey based on the visual analogue scale. Results: Data were analyzed using the statistical package SPSS version 22, where it was observed that the experimental group had a statistical value very similar to the control group reporting p values of 1.00. 87.5% did not show pain at the opening and in the visual analog scale 62.5% did not show any discomfort. Conclusions: Both techniques were found to confer a good anesthetic effect during chamber opening, so it can be confirmed that the infiltrative mentonian technique is useful for pulpal anesthesia only of the primary primary mandibular molar, as reported in other studies. Keywords: dental anesthesia, infiltration, pulpotomies, pediatric dentristy.
Impacts of Irrigation Termination Date on Cotton Yield and Irrigation Requirement
Authors: Masasi Blessing , Taghvaeian Saleh , Boman Randy , Datta Sumon
Published: February 2019

Optimization of cotton irrigation termination (IT) can lead to more efficient utilization and conservation of limited water resources in many cotton production areas across the U.S. This study evaluated the effects of three IT timings on yield, fiber quality, and irrigation requirements of irrigated cotton in southwest Oklahoma during three growing seasons. The results showed cotton yield increased with later IT dates, but this response was highly dependent on the amount and timing of late-season precipitation events. Only a few fiber quality parameters were significantly different among treatments, suggesting a more limited impact of IT on fiber quality. When averaged over the three study years, the lint yield was significantly different amongst all treatments, with an average increase of 347 kg ha−1 from the earliest to the latest IT. Additionally, the seed yield and the micronaire were similar for the two earlier IT treatments and significantly smaller than the values under the latest IT treatment. The differences in fiber uniformity and strength were also significant amongst IT treatments. Strong positive relationships were found between yield components and average late-season water content in the root zone. Lint and seed yields plateaued at an average late-season soil matric potential of about −30 kPa and had a quadratic decline as soil moisture depleted. When benchmarked against the latest IT treatment, the earlier IT treatments achieved average reductions of 16–28% in irrigation requirement. However, this water conservation was accompanied with considerable declines in yield components and micronaire and smaller declines in fiber length, uniformity, and strength.
Effect of Vermicompost Application on Bioactive Properties and Antioxidant Potential of MD2 Pineapple Fruits
Authors: Mahmud Mawiyah , Ramasamy Sujatha , Othman Rashidi , Abdullah Rosazlin , Yaacob Jamilah Syafawati
Published: February 2019

Vermicompost is an organic waste produced from earthworms that can enhance the soil condition and is rich with essential plant nutrients, thus increasing produce quality and shelf life. In this study, a one-year field trial was conducted to elucidate the effects of vermicompost supplementation on the composition of bioactive compounds and antioxidant activities of pineapple (Ananas comosus var. MD2) fruits, compared to control and application of chemical fertilizer. Based on the results, pineapple fruits produced from plants supplemented with chemical fertilizer showed the strongest radical scavenging properties against 2,2-Diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), followed by vermicompost and control plants. Application of chemical fertilizer and vermicompost also produced fruits with a very high content of chlorophylls and β-carotene compared to control plants. However, the amounts of bioactive compounds present in fruits produced with chemical fertilizer are higher than in fruits produced with vermicompost. Total phenolics content and Ferric Reducing Antioxidant Power (FRAP) reducing power were lowest in fruit extracts produced from pineapple plants supplemented with vermicompost. These results suggested that vermicompost cannot completely replace chemical fertilizer for the production of fruits with a high content of phytoconstituents but could be used as an additional supplement to reduce environmental pollution and ensure agricultural sustainability.
Efficient Expression of Xylanase by Codon Optimization and Its Effects on the Growth Performance and Carcass Characteristics of Broiler
Authors: Hu Hong , Dai Sifa , Wen Aiyou , Bai Xi
Published: February 2019

The aim of the present study was to improve the expression level of Trichoderma reesei xylanase (XynB) in Pichia pastoris through a codon optimization strategy and evaluate its effects on the growth performance and carcass characteristics of broiler. According to the codon bias of Pichia genome, the XynB gene from T. reesei was optimized and synthesized by whole gene assembly to improve its expression level in P. pastoris. Approximately 180 target mutations were successfully introduced into natural XynB. The maximum activity of xylanase (optiXynB) secreted by P. pastoris pPICZaA-optiXynB was 1299 U/mL after 96 h induction. Purified recombinant optiXynB had the molecular weight of 24 kDa. The optiXynB presented highest activity in pH 5.0 and 50 °C. The recombinase was highly specific towards birchwood xylan, beechwood xylan, and oat-spelt xylan. In the broiler experiment, a total of 200 Arbor Acre broilers (one day old) were randomly allocated into four groups fed with basal diets containing 0 (control group), 500, 1000, and 1500 IU/kg optiXynB. Dietary 1000 and 1500 IU/kg optiXynB significantly increased (p < 0.05) final weight and body weight gain; dietary 500, 1000, and 1500 IU/kg optiXynB significantly increased (p < 0.05) pre-evisceration weight, dressed percentage, and eviscerated weight compared with the control group. Inclusion of optiXynB in broiler diets linearly increased final weight, body weight gain, breast muscle weight and leg muscle weight, but linearly decreased feed conversion rate (p < 0.05). Furthermore, inclusion of optiXynB in broiler diets linearly and quadratically increased pre-evisceration weight, dressed percentage, and eviscerated weight (p < 0.05). The recombinant optiXynB from P. pastoris pPICZaA-optiXynB was beneficial in improving growth performance and carcass characteristics of broilers.
Macro- and Micro-Heterogeneity of Natural and Recombinant IgG Antibodies
Authors: Beck Alain , Liu Hongcheng
Published: February 2019

Recombinant monoclonal antibodies (mAbs) intended for therapeutic usage are required to be thoroughly characterized, which has promoted an extensive effort towards the understanding of the structures and heterogeneity of this major class of molecules. Batch consistency and comparability are highly relevant to the successful pharmaceutical development of mAbs and related products. Small structural modifications that contribute to molecule variants (or proteoforms) differing in size, charge or hydrophobicity have been identified. These modifications may impact (or not) the stability, pharmacokinetics, and efficacy of mAbs. The presence of the same type of modifications as found in endogenous immunoglobulin G (IgG) can substantially lower the safety risks of mAbs. The knowledge of modifications is also critical to the ranking of critical quality attributes (CQAs) of the drug and define the Quality Target Product Profile (QTPP). This review provides a summary of the current understanding of post-translational and physico-chemical modifications identified in recombinant mAbs and endogenous IgGs at physiological conditions.
Aerodynamic Design and Off-design Performance Analysis of a Multi-Stage S-CO2 Axial Turbine Based on Solar Power Generation System
Authors: Shi Dongbo , Zhang Lei , Xie Yonghui , Zhang Di
Published: February 2019

Solar energy is an inexhaustible source of clean energy. Meanwhile, supercritical carbon dioxide has excellent characteristics such as easy access to critical conditions, high density, and low viscosity, making it one of the most popular circulating working fluids in solar power generation technology. However, solar power generation systems are severely affected by geographical distribution, seasonal variations and day-night cycles. Therefore, efficient and adaptable turbine design is the key to realize supercritical carbon dioxide solar power generation technology. In this paper, the initial thermodynamic design of 10 MW S-CO2 three-stage axial turbine is completed by self-developed thermodynamic design software, and the key thermodynamic and structural parameters are obtained. The optimal design of turbine and its aerodynamic performance at rated operating conditions are obtained by using a three-dimensional aerodynamic numerical analysis and optimization method. At last, nine off-design conditions are analyzed in detail. The results show that the designed turbine output power is 10.37 MW and the total-total efficiency is 91.60%. It can operate efficiently and steadily in the range of output power from 16.2% to 155.9%. It can adapt to the variable operating conditions of solar power generation system and meet the design requirements.
A Data-Driven Game Theoretic Strategy for Developers in Software Crowdsourcing: A Case Study
Authors: Liao Zhifang , Zeng Zhi , Zhang Yan , Fan Xiaoping
Published: February 2019

Crowdsourcing has the advantages of being cost-effective and saving time, which is a typical embodiment of collective wisdom and community workers’ collaborative development. However, this development paradigm of software crowdsourcing has not been used widely. A very important reason is that requesters have limited knowledge about crowd workers’ professional skills and qualities. Another reason is that the crowd workers in the competition cannot get the appropriate reward, which affects their motivation. To solve this problem, this paper proposes a method of maximizing reward based on the crowdsourcing ability of workers, they can choose tasks according to their own abilities to obtain appropriate bonuses. Our method includes two steps: Firstly, it puts forward a method to evaluate the crowd workers’ ability, then it analyzes the intensity of competition for tasks at Topcoder.com—an open community crowdsourcing platform—on the basis of the workers’ crowdsourcing ability; secondly, it follows dynamic programming ideas and builds game models under complete information in different cases, offering a strategy of reward maximization for workers by solving a mixed-strategy Nash equilibrium. This paper employs crowdsourcing data from Topcoder.com to carry out experiments. The experimental results show that the distribution of workers’ crowdsourcing ability is uneven, and to some extent it can show the activity degree of crowdsourcing tasks. Meanwhile, according to the strategy of reward maximization, a crowd worker can get the theoretically maximum reward.
Construction of the Uyghur Noun Morphological Re-Inflection Model Based on Hybrid Strategy
Authors: Munire Muhetaer , Li Xiao , Yang Yating
Published: February 2019

In this paper, a hybrid strategy of rules and statistics is employed to implement the Uyghur Noun Re-inflection model. More specifically, completed Uyghur sentences are taken as an input, and these Uyghur sentences are marked with part of speech tagging, and the nouns in the sentences remain the form of the stem. In this model, relevant linguistic rules and statistical algorithms are used to find the most probable noun suffixes and output the Uyghur sentences after the nouns are re-inflected. With rules of linguistics artificially summed up, the training corpora are formed by the human–machine exchange. The final experimental result shows that the Uyghur morphological re-inflection model is of high performance and can be applied to various fields of natural language processing, such as Uyghur machine translation and natural language generation.
Directional Support Vector Machines
Authors: Pernes Diogo , Fernandes Kelwin , Cardoso Jaime S.
Published: February 2019

Several phenomena are represented by directional—angular or periodic—data; from time references on the calendar to geographical coordinates. These values are usually represented as real values restricted to a given range (e.g., [ 0 , 2 π ) ), hiding the real nature of this information. In order to handle these variables properly in supervised classification tasks, alternatives to the naive Bayes classifier and logistic regression were proposed in the past. In this work, we propose directional-aware support vector machines. We address several realizations of the proposed models, studying their kernelized counterparts and their expressiveness. Finally, we validate the performance of the proposed Support Vector Machines (SVMs) against the directional naive Bayes and directional logistic regression with real data, obtaining competitive results.
Intelligent Evaluation of Strabismus in Videos Based on an Automated Cover Test
Authors: Zheng Yang , Fu Hong , Li Ruimin , Lo Wai-Lun , Chi Zheru , Feng David Dagan , Song Zongxi , Wen Desheng
Published: February 2019

Strabismus is a common vision disease that brings about unpleasant influence on vision, as well as life quality. A timely diagnosis is crucial for the proper treatment of strabismus. In contrast to manual evaluation, well-designed automatic evaluation can significantly improve the objectivity, reliability, and efficiency of strabismus diagnosis. In this study, we have proposed an innovative intelligent evaluation system of strabismus in digital videos, based on the cover test. In particular, the video is recorded using an infrared camera, while the subject performs automated cover tests. The video is then fed into the proposed algorithm that consists of six stages: (1) eye region extraction, (2) iris boundary detection, (3) key frame detection, (4) pupil localization, (5) deviation calculation, and (6) evaluation of strabismus. A database containing cover test data of both strabismic subjects and normal subjects was established for experiments. Experimental results demonstrate that the deviation of strabismus can be well-evaluated by our proposed method. The accuracy was over 91%, in the horizontal direction, with an error of 8 diopters; and it was over 86% in the vertical direction, with an error of 4 diopters.
Wireless Magnetoelasticity-Based Sensor for Monitoring the Degradation Behavior of Polylactic Acid Artificial Bone In Vitro
Authors: Yu Kun , Ren Limin , Tan Yisong , Wang Junyao
Published: February 2019

A magnetoelasticity-based (MB) sensor was employed for monitoring the degradation behavior of polylactic acid (PLA) artificial bone (PAB) in vitro, which can be used as an implant to repair bone defects. Biodegradable PLA material was coated on both sides of the MB sensor strip with a 3D printer, forming PAB. The PAB samples were submerged in an alkaline medium (pH = 12) and a neutral phosphate-buffered saline (PBS) medium (pH = 7.4). The degradation behavior of the PAB was monitored wirelessly based on changes in the output power of the MB sensor. The results indicated that the output power varied by almost 0.2 and 0.11 dbm over 15 days in the two media. The degradation behavior monitored by the MB sensor agreed with the theoretical analysis. The MB sensor provides a wireless method for monitoring the degradation behavior of PAB in vitro and requires few samples at a lower cost. Importantly, the results showed that biological tissues had almost no effect on the monitoring function of the MB sensor. Therefore, the MB sensor technology is highly attractive for fully characterizing the degradation behavior of bone implants in a larger range of physiological conditions, and will be applied to monitor the degradation behavior in vivo.
Dynamic Behavior of an Embedded Foundation under Horizontal Vibration in a Poroelastic Half-Space
Authors: Chen Yang , Zhao Wen , Jia Pengjiao , Han Jianyong , Guan Yongping
Published: February 2019

More and more huge embedded foundations are used in large-span bridges, such as caisson foundations and anchorage open caisson foundations. Most of the embedded foundations are undergoing horizontal vibration forces, that is, wind and wave forces or other types of dynamic forces. The embedded foundations are regarded as rigid due to its high stiffness and small deformation during the forcing process. The performance of a rigid, massive, cylindrical foundation embedded in a poroelastic half-space is investigated by an analytical method developed in this paper. The mixed boundary problem is solved by reducing the dual integral equations to a pair of Fredholm integral equations of the second kind. The numerical results are compared with existing solutions in order to assess the accuracy of the presented method. To further demonstrate the applicability of this method, parametric studies are performed to evaluate the dynamic response of the embedded foundation under horizontal vibration. The horizontal dynamic impedance and response factor of the embedded foundation are examined based on different embedment ratio, foundation mass ratio, relative stiffness, and poroelastic material properties versus nondimensional frequency. The results of this study can be adapted to investigate the horizontal vibration responses of a foundation embedded in poroelastic half-space.
Determination of Trace Zearalenone and Its Metabolites in Human Serum by a High-Throughput UPLC-MS/MS Analysis
Authors: Sun Danlei , Li Chenglong , Zhou Shuang , Zhao Yunfeng , Gong Yun Yun , Gong Zhiyong , Wu Yongning
Published: February 2019

This paper described an improved method for high-throughput and sensitive determination of zearalenone and its five metabolites (zearalanone, α-zearalenol, β-zearalenol, α-zearalanol and β-zearalanol) in human serum. Serum samples were measured both before and after enzyme hydrolysis to assess the free and total amount of each compound by ultra-performance liquid chromatography–tandem mass spectrometry (UPLC-MS/MS) in multi reaction monitoring (MRM) mode following off-line 96-well μElution solid-phase extraction (SPE). All the analytes were completely separated on a C18 column within 6 min. It enabled multi-sample preparation at the same time eliminating tedious evaporation and reconstitution steps, allowing 96 (one plate) samples to be processed and analyzed within 24 h. Using an isotope labelled internal standard (13C-ZEN), high recoveries were achieved for all the compounds in the range 91.6%–119.5%, with intra-day and inter-day relative standard deviations (RSDs) of less than 8%. The limits of detection (LOD) and the limits of quantification (LOQ) were 0.02–0.06 ng mL−1 (0.6–2 fmol) and 0.1–0.2 ng mL−1 (3–6 fmol), respectively, demonstrating a notable enhancement in sensitivity compared to the existing methods. The validated method was applied to the analysis of paired urine and serum samples collected from 125 healthy individuals in Henan Province, locating in the middle area of China. ZEN metabolites in human serum were significantly lower than those in urine. Only one serum sample was positive for ZEN after enzyme digestion, whereas at least one of ZEN biomarkers was detected in 75.2% of the paired urine samples. Some comparison and discussion were also included in this paper.
Numerical Analysis of a Sensorized Prodder for Landmine Detection by Using Its Vibrational Characteristics
Authors: Wu Zhiqiang , Ma Hui , Wang Chi , Li Jinhui , Zhu Jun
Published: February 2019

Prodders are widely used devices in landmine detection. A sensorized prodder has been developed to detect shallow buried landmines by their vibrational characteristics. However, the influencing mechanisms of prodder’s components on the measured vibrational characteristics are not clear, and the vibration intensity of the buried landmine decreases with burial depth. A numerical analysis method is proposed to investigate the effects of parameters of prodder-object coupling system on the measured vibrational characteristics. The calculated main resonance frequency is 109.2 Hz, which corresponds well with the published analogy result of 110 Hz, and the mathematical method is also validated by the previous experimental results. Based on the proposed analysis method, an optimized prodder is designed, whereby the signal strength can theoretically increase 122.78%, which means that a greater depth of detection can be acquired. This optimal design is verified by the simulation experiment that was conducted with the optimization function of Adams software.
Enhanced Gradient-Based Local Feature Descriptors by Saliency Map for Egocentric Action Recognition
Authors: Zuo Zheming , Wei Bo , Chao Fei , Qu Yanpeng , Peng Yonghong , Yang Longzhi
Published: February 2019

Egocentric video analysis is an important tool in healthcare that serves a variety of purposes, such as memory aid systems and physical rehabilitation, and feature extraction is an indispensable process for such analysis. Local feature descriptors have been widely applied due to their simple implementation and reasonable efficiency and performance in applications. This paper proposes an enhanced spatial and temporal local feature descriptor extraction method to boost the performance of action classification. The approach allows local feature descriptors to take advantage of saliency maps, which provide insights into visual attention. The effectiveness of the proposed method was validated and evaluated by a comparative study, whose results demonstrated an improved accuracy of around 2%.