bluuebunny/crossref_metadata_2025_split huggingface dataset:
Nghiên cứu đặc trưng và tính chất của màng sơn polyurethan chứa nano CeO2‐TiO2
Authors: Đại Lưu Minh , Chức Phạm Ngọc , Dũng Đoàn Trung , Nhiệm Đào Ngọc 
Published: March 2018

AbstractPolymer nanocomposites are relatively new class of materials. Incorporation of inorganic nanoparticles into a polymer matrix can significantly influence the properties of the matrix. The obtained composite might exhibit improved thermal, mechanical and optical properties. In this study, the CeO2–TiO2 nanoparticles have been applied to modify properties of polyurethane matrix in order to improve the ultra‐violet (UV) absorption property of polyurethane thin films. The interdependence of mechanical properties, UV absorption property and the dispersed concentration of CeO2‐TiO2 nanoparticles were investigated. Results showed that, the mechanical properties of polyurethane thin films coating CeO2‐TiO2 nanoparticles in testing conditions such as film‐forming ability, bonded coating and hardness, modulus, adhesion, impact resistance almost unaffected when the containing CeO2‐TiO2 nanoparticles ≤2 %. The survey sample was qualified; the scratches do not change the composition CeO2‐TiO2 ≤ 1 %. Samples containing 0.2 % CeO2‐TiO2 nanoparticles showed the best resistance to discoloration and most influential causes less of gloss paint. The aim of the present work is to investigate the mechanical properties and UV absorption property of CeO2‐TiO2 nanoparticles/urethane thin films. It is expected that the CeO2‐TiO2 nanoparticles would enhance the UV absorption properties of resulting CeO2‐TiO2 nanoparticles/urethane thin films.
Dondurulmuş- Çözülmüş Embriyo Sikluslarında Anne Yaşına Göre Optimum Transfer Gününün Belirlenmesi
Authors: KARABULUT Seda , KORKMAZ Oya , DELİKARA Nuri , KESKİN İlknur 
Published: March 2018

Amaç: Bu çalışmamızda, dondurma çözme
sikluslarında anne yaşına göre transfer gününün etkisini inceleyerek hangi yaş
grubunda hangi embriyo transfer gününün daha etkili olduğunun araştırılması
amaçlanmıştır.

Materyal ve Method: 205 çift
retrospektif olarak incelenerek çalışmaya alınmıştır. Hastalar anne yaşına göre 3 gruba
bölünmüştür. Birinci grup 30 yaş altı 63 hastadan, 2. grup 30-37 yaşa arası 109
hastadan ve 3. grup 37 yaşından büyük 33 hastadan oluşmuştur. Her bir gruptaki
hastalar embriyo transferlerinin 3. ya da 5. günde yapılmış olmasına bağlı
olarak ayrılmış ve gebelik oranları belirlenmiştir.

Bulgular: 1. ve 2. gruplarda gebelik oranları arasında istatistiksel olarak anlamlı bir fark
belirlenmemesine karşılık (%38.7, %31.2 ve %31.6, %30.6 sırasıyla) 3. grupta 3.
gün transferindeki başarı oranının 5. güne göre yaklaşık 2.5 kat daha fazla
olduğu (%28 - %12.5 sırasıyla) belirlenmiştir.

Sonuç: 30 yaş altı ve 30-37 yaş arası
hastalarda transfer gününün sonuçları etkilemediği ancak 37 yaşından büyük
ileri yaş grubunda 3. gün embriyo transferlerinin daha iyi gebelik sonucu
verdiği gözlemlenmiştir.
Desenvolvimento de Professores e Aprendizagem dos seus Estudantes
Authors: Schliemann Analúcia D. , Carraher David W. , Teixidor-i-Bigas Montserrat 
Published: March 2018

Este estudo descreve e avalia o impacto de um programa para o desenvolvimento de professores de matemática que (a) enfatiza álgebra, funções e suas várias representações como elementos de integração e aprofundamento de tópicos do currículo de matemática, (b) salienta a integração entre a notação algébrica, a representação gráfica e as relações entre quantidades físicas e (c) promove o ensino de conceitos e representações matemáticas através de discussões em sala de aula, a partir do raciocínio e representações intuitivas propostas pelos alunos. A contribuição do programa é analisada em termos de mudanças em sala de aula e resultados dos alunos em testes padronizados de avaliação no estado. Palavras-chave: Desenvolvimento de Professores. Álgebra. Funções. Ensino Fundamental. Álgebra Inicial.AbstractThis paper describes and evaluates the impact of a mathematics teacher development program that (a) highlights algebra, functions, and their representations as a thread that unifies and deepens the content of the mathematics curriculum, (b) emphasizes the integration among algebra notation, graphical representation, and relationships between physical quantities, and (c) promotes the teaching of mathematical content and representations through classroom discussions, taking into account the reasoning and intuitive representations proposed by students. The contribution of the program is analyzed in terms of changes in classroom teaching and students’ results in state mandated standard tests.Keywords: Teacher Development. Algebra. Functions. Middle School. High School. Early Algebra.
Servicios de ocio y derecho humano al bienestar = Leisure services and human right to well- being
Authors: Cimmino Maria 
Published: March 2018

Resumen: A la luz de los estudios academicos que consideran el desarollo como un proceso no solo estrictamente ecónomico y en el marco de el enofque de las opciones y de las capacidades atento a los indicadores sociales de bienestar, como salud y ocio, este articulo entiende reflexionar, desde una perspectiva legal, sobre la relación entre estos indicadores, con especial atención a la calidad de las prestaciónes de servicios de ocio, basados en la práctica de actividad física y el deporte que según la OMS, mejora el estado de salud y la calidad de vida de las personas.Palabras clave: Desarollo humano, bienestar, derecho a la salud, servicios de ocio, estándar de calidad, regulación profesional.Abstract: In the light of recent results showed in the national and international research about the human development, and according to the capability approach theory, the work aims to study the legal relationship betweeen the indicators of the well-being, in particular in order to the quality of the leisure time services. Keywords: Well-being, right to health, leisure, quality standard, professional regulation.
Justicia de élite: impunidad y desigualdad = Elite justice: impunity and inequality
Authors: Pérez Martínez José de Jesús 
Published: March 2018

Resumen: Se presenta un estudio interdisciplinario sobre los efectos sociales resultantes de la interacción entre impunidad y desigualdad socioeconómica en México centrado en el terreno sociológico. La relación recíproca entre ambas variables se observa en varios efectos sociales, como: la creciente vulnerabilidad de determinados sectores, al tiempo que el dominio político de ciertos sectores se vuelve económico y jurídico; una administración de justicia que hace distinción entre actores; o una variedad de derechos vulnerados, costos y carencias al enfrentar a la justicia, violaciones que escapan a la ley, o que se acumulan durante el proceso penal y permanecen sin castigo, con la consecuente ausencia de confianza en las autoridades judicialesPalabras clave: Impunidad, desigualdad, justicia penal, corrupción, delito.Abstract: An interdisciplinary study about the social effects after the interaction between impunity and socioeconomic inequality in Mexico is presented here located in the sociological field of studies. This reciprocal relation between these two variables can be seen in several social effects, such as: the exacerbation of the vulnerability of certain sectors, while the political domain of other sectors becomes economical and juridical; a justice administration that makes a distinction among the actors; or a variety of infringed rights, costs and lacks in the moment of facing the justice, violations that escape from the law, or either accumulate during the legal process and stay with no punishment, and the consequent lack of trust in the judicial authorities.Keywords: Impunity, inequality, criminal justice, corruption, crime.
Indio (denominación) = Indian (denomination)
Authors: Apaza Huanca Yaneth Katia 
Published: March 2018

ResumenEl artículo mostrará cómo las distintas denominaciones: indio, pueblo indio o indígena, campesino, comunidad indígena u originaria, etnia, nación y nacionalidad, otorgadas a los aymaras, quechuas (Bolivia) y kichwas (Ecuador) son una deconstrucción histórica social de casi cinco siglos hacia su identidad milenaria e histórica, que causan tres efectos: a) dominación (tutela), b) desestructuración territorial, por ende, desarticulación político-administrativa, económica y social, y c) limitación en su lucha por la emancipación.Así, las distintas denominaciones usadas por los Estados plurinacionales de Bolivia y Ecuador, son un lenguaje hegemónico-histórico deconstructivo por medio de significantes y significaciones que impregnará un “signo” colonial y postcolonial a los jaques, runas, ayllus, markas, suyus, señoríos aymaras, quechuas, y kichwas convirtiéndose a largo plazo en un paradigma de la denominación y dominación.Palabras clave: Aymaras, quechuas, kichwas; paradigma de la denominación y dominación; significante; significación; colonial; postcolonial; deconstrucción; tierra y territorio.Abstract: The article will show how the different denominations: Indian, Indian or indigenous people, peasant, indigenous or native community, ethnicity, nation and nationality, granted to the Aymaras, Quechuas (Bolivia) and Kichwas (Ecuador) are a social historical deconstruction of almost five centuries towards its millenarian and historical identity, which causes three effects: a) domination (guardianship), b) territorial destructuration, therefore, political-administrative, economic and social disarticulation, and c) limitation in its struggle for emancipation.Thus, the different denominations used by the Plurinational States of Bolivia and Ecuador, are a hegemonic-historical deconstructive language by means of signifiers and significations that will impregnate a colonial and postcolonial "sign" to the jaques, runas, ayllus, markas, suyus, señoríos Aymaras, Quechuas, and Kichwas become a paradigm of denomination and domination over the long term.Keywords: Aymaras, Quechuas, Kichwas; paradigm of denomination and domination; significant; significance; colonial; postcolonial; of construction; land and territory.
ARQUEOLOGIA FUNERÁRIA NO CEMITÉRIO DE SANTO AMARO, RECIFE, PE: Jazigos e Signos da Elite Recifense na Segunda Metade do Século XIX
Authors: Machado Filipe Diêgo Cintra , Castro Viviane Maria Cavalcanti de 
Published: March 2018

Este trabalho apresenta o estudo dos jazigos do cemitério de Santo Amaro, localizado no Recife, Pernambuco. O objetivo desse estudo foi identificar e compreender que grupos socioeconômicos estão representados no cemitério entre 1851 a 1900. Os dados materiais analisados demonstram haver distinção social no interior do cemitério e essa pode ser perceptível através do tipo de jazigo, matéria-prima, dos signos utilizados para a decoração tumular e da própria localização do sepultamento. Conclui-se que o processo de mudança dos sepultamentos das igrejas para o cemitério extramuros, ocorrido no século XIX, perpetuou e ampliou as questões de caráter social, econômico e cultural. FUNERARY ARCHEOLOGY IN THE CEMETERY OF SANTO AMARO, RECIFE, PE: Graves and Signs of the Elite Recifense in the Second Half of the 19th CenturyABSTRACTThis work presents the study of the burial sites of the Santo Amaro cemetery, located in Recife, Pernambuco. The objective of this study was to identify and understand the socioeconomic groups represented in the cemetery between 1851 and 1900. The material data analyzed show that there is a social distinction within the cemetery, and this can be perceived through the type of deposit, the raw material, the signs used for the tomb decoration and the location of the burial. It is concluded that the process of changing the burials of the churches to the cemetery outside the walls, in the nineteenth century, perpetuated and expanded social, economic and cultural.Keywords: Historical Archeology; Cemiterial Studies; Cemetery of Santo Amaro
Management of Osteochondritis Dissecans of the Femoral Condyle
Authors: Chan Charles , Richmond Connor , Shea Kevin G. , Frick Steven L. 
Published: March 2018

* Osteochondritis dissecans of the femoral condyle remains poorly understood, with an unclear etiology.* Lesions that separate have a poor prognosis, thus making treatment strategies that promote healing and prevent separation attractive.* Magnetic resonance imaging is the preferred imaging modality and can predict instability well in adult patients, but with less specificity in skeletally immature patients.* Classification that considers skeletally immature patients and adults differently and separates mobile from immobile lesions may be helpful in treatment decisions.* A multicenter research effort is under way to address weaknesses in the current literature identified by a 2010 Clinical Practice Guideline from the American Academy of Orthopaedic Surgeons.* A new arthroscopic classification system with treatment recommendations has been proposed and is being studied.
Conjunction of wavelet-entropy and SOM clustering for multi-GCM statistical downscaling
Authors: Baghanam Aida Hosseini , Nourani Vahid , Keynejad Mohammad-Ali , Taghipour Hassan , Alami Mohammad-Taghi 
Published: March 2018

Abstract
Important issues in statistical downscaling of general circulation models (GCMs) is to select dominant large-scale climate data (predictors). This study developed a predictor screening framework, which integrates wavelet-entropy (WE) and self-organizing map (SOM) to downscale station rainfall. WEs were computed as the representatives of predictors and fed into the SOM to cluster the predictors. SOM-based clustering of predictors according to WEs could lead to physically meaningful selection of the dominant predictors. Then, artificial neural network (ANN) as the statistical downscaling method was developed. To assess the advantages of different GCMs, multi-GCM ensemble approach was used by Can-ESM2, BNU-ESM, and INM-CM4 GCMs. Moreover, NCEP reanalysis data were used to calibrate downscaling model as well for comparison purposes. The calibration, validation, and projection of the proposed model were performed during January 1951 to December 1991, January 1992 to December 2005 and January 2017 to December 2100, respectively. The proposed data screening model could reduce the dimensionality of data and select appropriate predictors for generalizing future rainfall. Results showed better performance of ANN than multiple linear regression (MLR) model. The projection results yielded 29% and 21% decrease of rainfall at the study area for 2017–2050 under RCPs 4.5 and 8.5, respectively.
Comparison of the degradation of molecular and ionic ibuprofen in a UV/H2O2 system
Authors: Su Rongkui , Chai Liyuan , Tang Chongjian , Li Bo , Yang Zhihui 
Published: March 2018

Abstract
The advanced oxidation technologies based on •OH can effectively degrade the pharmaceutical and personal care products under operating conditions of normal temperature and pressure. In this study, direct photolysis of ibuprofen (IBU) is slow due to the relatively low molar extinction coefficient and quantum yield. Compared to direct photolysis, the degradation kinetics of IBU was significantly enhanced in the UV/H2O2 system, mainly by •OH radical mediated oxidation. In the UV/H2O2 system, the degradation rate of ionic IBU was slightly faster than that of the molecular form. Kinetic analysis showed that the second-order reaction rate constant of ionic IBU (5.51 × 109 M−1 s−1) was higher than that of the molecular form (3.43 × 109 M−1 s−1). The pseudo first-order rate constant for IBU degradation (kobs) increased with increasing H2O2 dosage. kobs can be significantly decreased in the presence of natural organic matter (NOM), which is due to (i) NOM radical scavenging effects (dominant role) and (ii) UV absorption. The degradation of IBU was inhibited by HCO3–, which was attributed to its scavenging effect. Interestingly, when NO3– was present in aqueous solution, a slight increase in the degradation rate was observed, which was due to NO3– absorbing photons to generate •OH at a low quantum yield. No obvious effects were observed when SO42 and Cl− were present.
Optimal Placement of FACTS Devices for Voltage Stability Improvement with Economic Consideration Using Firefly Algorithm
Authors: Rajasekaran S. , Muralidharan S. 
Published: March 2018

Background:
Increasing power demand forces the power systems to operate at their
maximum operating conditions. This leads the power system into voltage instability and causes
voltage collapse. To avoid this problem, FACTS devices have been used in power systems to increase
system stability with much reduced economical ratings. To achieve this, the FACTS devices
must be placed in exact location. This paper presents Firefly Algorithm (FA) based optimization
method to locate these devices of exact rating and least cost in the transmission system.

Methods:
Thyristor Controlled Series Capacitor (TCSC) and Static Var Compensator (SVC) are
the FACTS devices used in the proposed methodology to enhance the voltage stability of power
systems. Considering two objectives of enhancing the voltage stability of the transmission system
and minimizing the cost of the FACTS devices, the optimal ratings and cost were identified for the
devices under consideration using Firefly algorithm as an optimization tool. Also, a model study
had been done with four different cases such as normal case, line outage case, generator outage
case and overloading case (140%) for IEEE 14,30,57 and 118 bus systems.

Results:
The optimal locations to install SVC and TCSC in IEEE 14, 30, 57 and 118 bus systems
were evaluated with minimal L-indices and cost using the proposed Firefly algorithm. From the
results, it could be inferred that the cost of installing TCSC in IEEE bus system is slightly higher
than SVC.For showing the superiority of Firefly algorithm, the results were compared with the
already published research finding where this problem was solved using Genetic algorithm and
Particle Swarm Optimization. It was revealed that the proposed firefly algorithm gives better optimum
solution in minimizing the L-index values for IEEE 30 Bus system.

Conclusion:
The optimal placement, rating and cost of installation of TCSC and SVC in standard
IEEE bus systems which enhanced the voltage stability were evaluated in this work. The need of
the FACTS devices was also tested during the abnormal cases such as line outage case, generator
outage case and overloading case (140%) with the proposed Firefly algorithm. Outputs reveal that
the recognized placement of SVC and TCSC reduces the probability of voltage collapse and cost
of the devices in the transmission lines. The capability of Firefly algorithm was also ensured by
comparing its results with the results of other algorithms.
تأثير استخدام وسيلة القصّة المتقاطعة لترقية مهارة القراءة
Authors: Zein Husnaini 
Published: March 2018

إن القراءة عملية ميكانيكية بسيطة إلى مفهوم معقد يقوم على أنهّا نشاط عقلي يستلزم تدخل شخصية الإنسان بكلّ جوانبها وهي تتضمن العديد من المهارات المترابطة والمتشابكة التي لا يمكن فصل بعضها عن بعض. واستخدام وسيلة القصّة المتقاطعة بعض من الأساليب المعصرة في تعليمها. وهي أن يجر التعليم حيّا مرغوبا في زهن الطلاب. وقد اتخذا الكاتب مدرسة محمدية كنموذج التعليم لمعرفة الحقيقة أن هذه الطريقة والتقنية تؤثر في ترقية مهارة القراءة تأثيرا معنويا. وأخذ يبحث عن هذه العملية المهمّة. وكان البحث على نوع الدراسة التجريبية المقارنة. ووجد منها بيانات تشير إلى نتيجة أن فيه تأثير معنوي في ترقية مهارة القراءة بين الطلاب الذين تعلّموا باستخدام طريقة القراءة بوسيلة القصّة المتقاطعة والطلاب الذين تعلّموا باستخدام الطريقة التقليدية
استخدام طريقة الحفظ من خلال القصة المتقاطعة لترقية قدرة التلاميذ على كتابة الآيات في مادة القرآن والحديث
Authors: Nelvawita Nelvawita 
Published: March 2018

كان هذا البحث مؤسسا على انخفاض قدرة التلاميذ على كتابة الآيات التي تم دراستها. وعادة ما تكون هذه الصعوبة بسبب عدم حفظها من الآيات. وإذا تم حفظ التلاميذ الآيات وفقا لمخرجها فصاروا أسهل لكتابتها. لذلك أرادت الباحثة تطبيق هذه الطريقة لجعلها مسهلة في حفظ آيات القرآن وكتابتها. وفي هذا البحث، فإن صياغة المشكلة هي "كيفية استخدام طريقة حفظ القرآن من خلال القصة المتقاطعة في دراسة القرآن والحديث بالمدرسة الثانوية الإسلامية الحكومية الأولى بكنبارو؟" ويهدف هذا البحث إلى التعرف على استخدام طريقة حفظ القرآن من خلال القصة المتقاطعة في دراسة القرآن الكريم والحديث الشريف. والنوع من البحوث هو بحث ميداني (field research)، البحث النوعي الذي هو وصفي. وكان الفرد من هذا البحث هو المدرس في مادة القرآن والحديث، والتلاميذ، ورئيس المدرسة. وأساليب جمع البيانات المستخدمة هي الملاحظة، والمقابلة، والتوثيق. وأظهرت نتيجة البحث أن استخدام طريقة حفظ القرآن الكريم من خلال القصة المتقاطعة الإعلامية في دراسة القرآن والحديث في الصف الحادي عشر "الباء" و "الجيم" هو وفقا لخطوات استخدام القصة المقاطعة الإعلامية، وتظهر النتيجة أن الطفل يحفظ بسرعة أكبر ويهتم بحفظ القرآن والحديث
REFLECTION OF ENGLISH READING CURRICULUM IN JUNIOR HIGH SCHOOL TEXTBOOKS: IMPLICATION FOR CURRICULUM DEVELOPMENT
Authors: Bukhori Bukhori 
Published: March 2018

This study investigates the reflection of English reading curriculum in Junior High School textbooks in terms of types of syllabus, reading tasks and cognitive level of reading tasks. Two books have been employed as documents to be analyzed in this research. The first book is Bahasa Inggris Sekolah Pertama Kelas VIII Edisi 4 which is one of electronic textbooks (Buku Sekolah Elektronik (BSE)) published by Department of National Education. The second book is English on Sky (EOS)2 for Junior High School Students Year VIII from Erlangga publisher. The findings suggested that both BSE and EOS have reflected a part of English reading curriculum. In this case BSE is better than EOS. However, both textbooks need to be improved in fulfilling the curriculum demand in terms of types of reading tasks and cognitive levels of reading tasks. Based on the research findings, some recommendations for curriculum development are finally presented.
SPEAKING SKILL IN USING COMMUNITY LANGUAGE LEARNING (CLL)
Authors: Masbirran Gunaldi , Fauzi Andi 
Published: March 2018

The researcher applied Community Language Learning (CLL) in teaching speaking skill. The purpose of this research was to identify the effect of using Community Language Learning (CLL) Method towards speaking skill students who received the class instruction by using CLL than students who do not receive method at the second semester students of ABA Persada Bunda in Pekanbaru. The design of the research was experimental design with the total number of population are 25 students from the second semester students of ABA Persada Bunda in Pekanbaru. Instrument in this research was an oral test speaking by report. Data were analyzed using t-test. The result of the test showed that the average score of students’ pre test was 68,50 and then the average of students post test was 74,58. The results of this research found that the alternative hypothesis was accepted and rejected a hypothesis null. It can be seen from the t-test (0.000) significant at the level of 0.05. The result of N-Gain of experimental class was 0,31. It meant that the significant of strategy that used in experimental class was Middle because the average of N-Gain was 0.31. From the above explanation, the researcher concluded that Community Language Learning (CLL) Method effective for teaching speaking skill at the second semester students of ABA Persada Bunda in Pekanbaru.