bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of Heat Transfer in The VVER-1200 Reactor’s Heat Channel
Authors: Dinh Van Thin , Bui Loat Van , Bui Hong Thi
Published: October 2017

In early 2015, the Government of Vietname has decided to choose VVER-1200 Russian-made technology for building at the Nuclear Power Plant in Ninh Thuan 1, this is the advanced reactor generation III + and the only one has been completed for the first time in the world in August 2016. Vietnam is facing a major challenge, which is how to ensure the acquired technology transfer process, then the safe operation of thisunit.

This article analyzes some of the heat changes occur in reactor when there are changes of the heatflux. This is an issue directly related to the workof predictingincidents and give ways to fix the problem when the plant is in conditions such as  startup, normal and abnormaloperations.

For analysis, the authors used CFD methods, this is a very modern method and have high reliability. The results received have fit well when compared with the safety analysis report of Rosatom published.
The results of termite investigations (Insecta: Isoptera) are harmful in the Complex of Hue Monuments
Authors: Ngo Xuan Nam
Published: October 2017

The results of a survey on the composition of termite species in the Complex of Hue Monuments in 2014 and 2015 found 25 species belonging to 12 genera and 3 families. Termitidae had the highest number of genera and species (16 species accounted for 64% of total identified species), followed by Rhinotermitidae with 7 species (28% of identified species). The number of species declined in Kalotermitidae, only two species (8% of the species identified). In which, 8 species were analyzed to assess their damage level for the Complex of Hue monuments. Result showed that, Coptotermes gestroi had the highest level of damage and was identified as the main pest species for the Complex of Hue Monuments.
Ficus squamosa Roxb. (Moraceae) A NEW RECORD FOR THE FLORA OF VIETNAM
Authors: Nguyen Trung Thanh , Phạm Oanh Thị , Đỗ Xuyến Thị , Nguyễn Đức Anh , Đỗ Hải Văn
Published: October 2017

Abstract: During the study of the literature, collecting specimens from the field and studying the specimens of Ficus genus in herbarium and international botanical specimens, we found the species: Ficus squamosa, a new record for flora of Vietnam. It is closed to Ficus hispida and chiefly differs in caespitose habit and lateral bracts present on fig body. In this paper, we introduce for this species with a short data on taxonomy, types, morphology, ecology and distribution of the mentioned species accompanied with the photos. The vouchers were collected in Cham Chu special used forest (Tuyen Quang province), preserved in the Herbarium of the Institute of Ecology and Biological Resources, Hanoi, Vietnam (HN) and VNU-University (HNU).
PHÂN TÍCH CHẨN ĐOÁN BỆNH MẠCH VÀNH DỰA TRÊN TÍN HIỆU ĐIỆN TÂM ĐỒ
Authors: Nguyen Thi Thanh Van
Published: October 2017

Điện tâm đồ (ECG) ghi lại và biểu thị các xung điện trong quá trình hoạt động của tim. Nghiên cứu các đặc trưng trong tín hiệu điện tâm đồ để phát hiện ra những điểm bất thường của tim có ý nghĩa quan trọng trong lĩnh vực y khoa. Báo cáo này trình bày phương pháp phát hiện hội chứng dày tâm thất và dày tâm nhĩ của tim trên cơ sở phân tích tín hiệu điện tâm đồ kết hợp với các đặc điểm của bệnh. Một chương trình thực hiện tự động phân tích tín hiệu ECG nhằm phát hiện hội chứng dày tâm thất và dày tâm nhĩ đã được phát triển và kiểm chứng với các mẫu tín hiệu ECG. Kết quả kiểm nghiệm cho thấy kết quả chẩn đoán có độ chính xác cao, hứa hẹn khả năng tích hợp chương trình vào thiết bị đo ECG thực hiện sàng lọc và hỗ trợ chẩn đoán tự động.
Historia económica de Buga siglo XVIII. Del año 1700 al año 1750
Authors: Lenis H. Luis Francisco
Published: October 2017

Monografía: Historia ecónomica de Buga en el siglo XVII (1700 - 1750)
Siglo XIX en la Historia de El Cerrito
Authors: Carvajal Peña Diego A.
Published: October 2017

Este trabajo quiere contribuir al esclarecimiento de algunos procesos sociales acaecidos en el siglo XIX y que son una fuerza motora para el desarrollo del capitalismo en nuestro distrito. La investigación gira preferencialmente dentro del concepto de hacienda, teniendo en cuenta su gran importancia como unidad productiva.
Documentación notarial sobre haciendas, siglo XVIII
Authors: Lenis Luis Francisco
Published: October 2017

Documento
Reseña histórica de la fundación de Toro
Authors: Salcedo  S. Jorge Eliécer
Published: October 2017

Al igual que la mayoría de las ciudades fundadas durante el siglo XVI, la fundación de Toro se hace a través de una capitulación o contrato hecho por el Conquistador y la Corona, mediante la cual emprendía su acción de incorporar nuevos territorios. En la funda­ción de Toro encontramos que las referencias hechas por los diferentes autores que hap escrito sobre su fundación aparecen puntos polémicos en lo que respecta a su fundador y localización, por eso en esta corta reseña dejo de lado informaciones que son completa­mente erráticas.
Producción de Esmeraldas en Muzo Boyacá Durante el Radicalismo Colombiano. Siglo XIX
Authors: Amaya Guío Germán Alberto
Published: October 2017

La producción de esmeraldas en Muzo ha sido una importante actividad económica reconocida desde el período prehispánico hasta nuestros días; indudablemente ha sido una de las fuentes de riqueza captada por algunas distinguidas familias de la élite nacional, pero ha sido casi nulo y muy poco significativo el aporte que este sector económico (en un alto porcentaje de propiedad del departamento),  ha hecho al desarrollo social de esta región del país. Por el contrario, desde los inicios la época republicana (S. XIX) Muzo se convirtió en fuente de corrupción administrativa e inseguridad con presencia de grupos armados generalmente al margen de la ley y protagonistas de innumerables desafueros.
Presentación
Authors: González Julián
Published: October 2017

Hay un referente empírico real que la fotografía refleja, registra captura? ¿Hay fotografías mimóticas y no mimóticas? ¿Hay un referente real detrás de una nota periodística? En este número de Nexus se dan cita 16 artículos agrupados en torno a cuatro objetos y temas más o menos diferenciados: discurso, narración argumentación; artefactos y objetos de diseño; obras de arte y de expresión estética, y procesos_ de comunicación pública, educación y medios. Pero podría agruparse un poco más de la mitad de la revista bajo un rótulo más general: narración, argumentación, comprensión y reconocimiento.
Presentación
Authors: Alzate Patricia
Published: October 2017

En esta edición proponemos una lectura que trasiega por la antropología, el análisis critico de textos, la danza, el diseño y el análisis audiovisual. Un primer grupo de textos examina las relaciones entre medios de comunicación y antropología, enfatizando en las lecturas que las audiencias establecen con producciones mediáticas: el texto “Migración, televisión e identidad. Modos de ver transnacionales en/ desde Colombia” de Mauricio Duarte, ancla las transformaciones socioculturales de los colombianos que migraron a Estados Unidos a partir de la década de los 80, con las telenovelas y series televisivas que recrean muchas de las situaciones que motivaron ese proceso migratorio. Por su parte, el articulo de Oscar Perdomo “Cimarronaje en el comic”,nos propone una lectura de cuatro comics comerciales y cómo estos recrean personajes de comunidades afrodescendientes, algunos reales (Benkos Biohó v Nat Turner), otros de ficción (Acero y Zambo Dendó), a partir de los cuales reflexiona sobre el cimarronaje v los procesos de emancipación afroamericana. Otro corpus de textos revisa metodologías de análisis de contenido que integran una perspectiva multimedia.
Presentación
Authors: González Julián
Published: October 2017

Hace 25 años Jesús Martín Barbero publicaba por primera vez “De los Medios a las Mediaciones”. La influencia de su obra en la investigación y estudios sobre Comunicación y Cultura en Colombia y América Latina no cesa, y al contrario ha encontrado nuevas vetas y ramificaciones en la investigación sobre educación y culturas escolares, culturas políticas, transformaciones y persistencias de la vida urbana, estudios sobre el impacto social y cultural de las tecnologías y las tecnicidades, por mencionar algunas.
"La catedral de los negros" de Marcial Gala o una Babel (no) feliz
Authors: Callegari Cynthia
Published: October 2017

El siguiente artículo analiza la novela La catedral de los negros del escritor cubano Marcial Gala, ganadora del premio Alejo Carpentier 2012. Esta pone en escena el hecho de que se está produciendo en Cuba una literatura abierta al cambio y a la tematización de problemas que la sociedad conocía pero de los que casi no se hablaba de manera pública. Ya desde el título, plantea un gesto desacralizador y polisémico. Esta primera irreverencia permite abrir un camino hacia otros modelos, múltiples voces dialogan sordamente entre sí y parecen superponerse para exponer y dar testimonio de los hechos, desplazando la posibilidad de llegar a una verdad. La novela narra una realidad no feliz, se atreve a mostrar en mosaicos rotos un mundo decadente y promiscuo producto de la violencia. Gala, al darle voz y materialidad en la escritura a la voces periféricas y marginales, destrona la idea de la una voz única, hegemónica, como representación de la realidad.
Esclarecimiento en una edad de destrucción
Authors: Subirats Eduardo , Bitt Christopher , Fenn Paul Douglas
Published: October 2017

CARTA ABIERTA A UN EDITOR NORTEAMERICANO
Todo comenzó con la lectura de Seven Thesis against Hispanism en Columbia University, en Hofstra University y más tarde en una serie de ciudades desde Rio de Janeiro hasta la mismísima Salamanca, en 2004. Entre otras cosas, en esas tesis se denunciaba sonoramente la ausencia de un enlightenment o una Aufklärung en la Península ibérica y sus excolonias.
KONVERSATISME AKUNTANSI & FAKTOR YANG MEMPENGARUHI (Suatu Analisis terhadap Biaya Litigasi, Leverage, dan Growth Opportunities)
Authors: Mulyani Mulyani
Published: October 2017

Laporan keuangan merupakan suatu bentuk pertanggungjawaban manajemen untuk memenuhi kepentingan investor, kreditor, dan pemerintah. Selain itu, informasi yang ada dalam laporan keuangan dapat digunakan  untuk pengambilan keputusan, sehingga harus mengandung informasi yang dapat dipercaya. Manajemen diberikan fleksibilitas dalam memilih metode akuntansi yang akan digunakan, salah satunya dengan menerapkan konservatisme akuntansi. Konservatisme didefinisikan sebagai usaha antisipasi atas kerugian yang mungkin terjadi dalam proses bisnis perusahaan dengan cara mengakui beban lebih cepat dibandingkan dengan pendapatan. Bila prinsip ini diterapkan maka akan menyebabkan angka laba dan pendapatan cenderung rendah sedangkan angka biaya cenderung tinggi. Penggunaan prinsip ini didasarkan pada asumsi bahwa perusahaan dihadapkan pada ketidakpastian ekonomi di masa yang akan datang, sehingga pengukuran dan pengakuan untuk angka-angka tersebut dilakukan dengan hati-hati. Penelitian ini dilakukan pada perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia periode 2013-2015. Pemilihan sampel dilakukan dengan metode judgment sampling. Jumlah sampel yang digunakan dalam penelitian ini adalah 279 data observasi yang diambil dari 93 perusahaan selama periode 2013-2015. Regresi logistik digunakan untuk menguji variabel yang diduga berpengaruh terhadap konservatisme akuntansi. Hasil pengujian SPSS menunjukkan bahwa hipotesis pertama, kedua dan ketiga ditolak. Walaupun hipotesis pertama dan kedua ditolak, namun hasil tersebut signifikan dengan arah hipotesis yang berlawanan. Jadi dapat disimpulkan bahwa variabel biaya litigasi dan leverage terbukti memiliki pengaruh signifikan terhadap konservatisme akuntansi. Sedangkan variabel growth opportunities tidak terbukti berpengaruh signifikan terhadap konservatisme akuntansi.
Constant pH Molecular Dynamics Reveals How Proton Release Drives the Conformational Transition of a Transmembrane Efflux Pump
Authors: Shen Jana , Yue Zhi , Zgurskaya Helen , Chen Wei
Published: October 2017

AcrB is the inner-membrane transporter of E. coli AcrAB-TolC tripartite efflux complex, which plays a major role in the intrinsic resistance to clinically important antibiotics. AcrB pumps a wide range of toxic substrates by utilizing the proton gradient between periplasm and cytoplasm. Crystal structures of AcrB revealed three distinct conformational states of the transport cycle, substrate access, binding and extrusion, or loose (L), tight (T) and open (O) states. However, the specific residue(s) responsible for proton binding/release and the mechanism of proton-coupled conformational cycling remain controversial. Here we use the newly developed membrane hybrid-solvent continuous constant pH molecular dynamics technique to explore the protonation states and conformational dynamics of the transmembrane domain of AcrB. Simulations show that both Asp407 and Asp408 are deprotonated in the L/T states, while only Asp408 is protonated in the O state. Remarkably, release of a proton from Asp408 in the O state results in large conformational changes, such as the lateral and vertical movement of transmembrane helices as well as the salt-bridge formation between Asp408 and Lys940 and other sidechain rearrangements among essential residues.Consistent with the crystallographic differences between the O and L protomers, simulations offer dynamic details of how proton release drives the O-to-L transition in AcrB and address the controversy regarding the proton/drug stoichiometry. This work offers a significant step towards characterizing the complete cycle of proton-coupled drug transport in AcrB and further validates the membrane hybrid-solvent CpHMD technique for studies of proton-coupled transmembrane proteins which are currently poorly understood.
发电企业参与售电市场的盈利模式分析
Authors: 白 云龙 , 袁 雅龄
Published: October 2017

随着新一轮电改的全面开启，售电侧主体的放开也进入了实质化的操作阶段。发电企业作为电力生产的上游，全方位地参与售电市场有着先天的优势，也有着硬性的不足。论文对发电企业参与售电市场的盈利模式进行了分析，并结合未来发展方向提出了策略和建议。
风险投资公司对创业企业的债务影响
Authors: 杨 昀 , 赵 臻
Published: October 2017

风险投资公司对于创业企业的发展具有强大的推动作用。论文选取了中国深圳证券交易所 2010-2016 年间中小板上市的 60 家企业进行分析，提出假设 ：风险投资的加入会使得创业企业的债务增加。这是因为第一，风险投资公司具有认证监督作用和声誉作用，有利于被投资企业的债务融资 ；第二，风险投资资金为权益性资金，为防止后期股权被稀释，风险投资公司会鼓励被投资企业发展债务融资 ；第三，风险投资资金注入被投资企业，可以使被投资企业拥有充足的发展资金，为后期债务性资金的偿还奠定基础。通过实证研究支持假设，得出结论 ：风险投资公司的参与会引起创业企业债务性资金的增加，同时还会提高创业企业的偿债能力。
互联网 + 背景下贵州农村电子商务发展问题及对策研究
Authors: 赵 齐兵 , 吕 昌敏 , 梁 宏信
Published: October 2017

当前，农村电子商务的发展面临重大机遇，但其在平台、市场、产品、物流等诸多方面存在问题，亟待解决。开展农产品地理标识认证，打造中国贵州“小”而“特”的农产品品牌，采取“龙头企业 + 农户”的模式经营品牌，确保产品质量和品牌效应，重点支持“贵农网”平台的建设，打造一个只卖贵州最“特”的农产品电子商务平台。
项目风险管理在民用飞机研制 IPD 模式下的应用
Authors: 孔 博
Published: October 2017

航空业是国家经济强盛的标志，随着中国经济的快速发展，国民收入大幅提升，发展民用航空飞机成为了当前人们的举国共识。在民用飞机的 IPD 研制的过程中，要着眼于其与军用飞机全然不同的运作体系，充分意识到民用飞机研制项目的高难度、高投入、高风险的特点。引入现代风险管理的科学方法和理念，实现对民用飞机研制IPD 模式下的项目风险管理。采用一定的风险管理和应对策略，更好地实现中国民用航空工业制造领域的实践创新。
票据丧失的救济制度研究
Authors: 付 世红
Published: October 2017

随着票据的流通和转让，票据发生丧失的情况也越来越多。论文对票据丧失救济制度的认识有四点，第一点是票据丧失是持有票据的人因为意外丢失了票据或者票据被不法分子偷取，盗取，而失去了对票据的控制权。第二点是对于票据丧失，可以采取三种救济措施，以保护与丧失的票据有利害关系的人的利益。而第三点笔者认识到外国是最早对于丢失的票据实行法律救济的国家，票据在国际的货币市场中占据主流。最后一点就是提出对策，解决票据丧失救济方法中存在的问题。
产品质量计量检验方法的探讨
Authors: 李 会霞
Published: October 2017

在中国国民经济的飞速发展，科学技术不断进步的条件下，中国产品质量检测能力也在不断提升。由于社会不断发展，人民生活水平提升，对产品质量的要求大大增加，产品质量检验已经成为社会经济发展中的重要内容。产品质量计量检验的方法是多种多样的，检验方法正确与否直接关系到产品质量管理水平。论文主要研究的是产品质量计量检验方法。
中职专业教师如何快速适应现代学徒制模式
Authors: 张 锋利 , 李 健玲 , 冯 芳
Published: October 2017

现代学徒制因其特有的优点已在中国职业教育中声名鹊起，虽然现在还处于试点阶段，但不难看出这种更加深入的新型校企合作方式已是大势所趋。而作为要求知识结构快速更新的专业教师，论文从改变观念、寻找方法、一专多能三个方面对其该如何快速适应这种新模式进行了论述。
试论讨论式教学法在高校思想政治理论课中的运用
Authors: 乔 宇煊 , 杨 文圣
Published: October 2017

当前，高校思想政治理论课存在着教学方法单一、教学实效性欠佳等问题，迫切需要革新教学方法。将讨论式教学法引入到高校思想政治理论课的课堂，一定程度上丰富了课堂授课方式，让学生在讨论中思考、感悟和判断，从而增加对理论知识的认可度，学生也在轻松愉悦的课堂氛围中接受马克思主义理论知识的熏陶，潜移默化的学习中国特色社会主义理论，最终提高了高校思想政治理论课的实效性。
Wytyczne dotyczące rozpoznawania i postępowania w eozynofilowym zapaleniu przełyku u dzieci i dorosłych: oparte na faktach stwierdzenia i rekomendacje
Authors: Lucendo Alfredo J. , Molina-Infante Javier , Arias Ángel , Von Arnim Ulrike , Bredenoord Albert J. , Bussmann Christian , Dias Jorge Amil , Bove Mogens , González-Cervera Jesús , Larsson Helen , Miehlke Stephan , Papadopoulou Alexandra , Rodríguez-Sánchez Joaquín , Ravelli Alberto , Ronkainen Jukka , Santander Cecilio , Schoepfer Alain M. , Storr Martin A. , Terreehorst Ingrid , Straumann Alex , Attwood Stephen E.
Published: October 2017

Eozynofilowe zapalenie przełyku (eosinophilic esophagitis − EoE) jest najczęstszą chorobą przełyku, prowadzącą do dysfagii i zaburzeń odżywiania u dzieci i młodych dorosłych. W związku z tym oraz z uwagi na znaczną liczbę opublikowanych w ostatnim czasie badań na temat EoE bardzo istotna jest optymalizacja rozpoznania i leczenia. Towarzystwa UEG, EAACI, ESPGHAN i EUREOS uznały za konieczne zaktualizowanie wytycznych w zakresie etiologii, epidemiologii, diagnostyki i terapii EoE. Metody. Zastosowano metodologię zgodną z AGREE II (Appraisal of Guidelines for Research and Evaluation) i GRADE (Grading of Recommendations Assessment, Development, and Evaluation), czyli aktualnymi standardami oceny dowodów w formułowaniu rekomendacji.Wyniki. Wytyczne zawierają uaktualnione dane na temat etiologii EoE, epidemiologii, czynników ryzyka, chorób towarzyszących i historii naturalnej EoE u dzieci i dorosłych. Dostarczają informacji o badaniach diagnostycznych i kryteriach rozpoznania, procedurach monitorowania oraz prezentują oparte na faktach zalecenia i rekomendacje dotyczące różnych metod leczenia.Wnioski. W wytycznych zaproponowano oparte na faktach rekomendacje dotyczące rozpoznawania, leczenia i nadzoru pacjentów z EoE.
Interakcje leków a ryzyko wystąpienia hepatotoksyczności – jak zapobiegać, jak skutecznie leczyć?
Authors: Woroń Jarosław
Published: October 2017

Interakcje leków mogą doprowadzać do wzrostu ryzyka wystąpienia hepatotoksyczności.W chorobach wątroby często stosuje się leki hepatoprotekcyjne, które także mogą być źródłem interakcji z innymi lekami. Znajomość oraz możliwości prewencji niekorzystnych interakcji pozwalają na redukcję tego ryzyka. Wybór leku hepatoprotekcyjnego nie powinien być przypadkowy z uwagi na różnice w mechanizmach działania oraz skuteczności ocenianej w dostępnych badaniach klinicznych. Należy zachować ostrożność podczas stosowania sylimaryny, która ze względu na hamujący wpływ na aktywność 3 izoenzymów cytochromu P450 może sama indukować niekorzystne interakcje, stając się paradoksalnie przyczyną uszkodzenia wątroby.
PENGEMBANGAN PAPAN PEREDAM BUNYI MELALUI MODIFIKASI NANO SILIKAT AMPAS TEBU PG KREMBOENG DENGAN TEMPLATE SERAT SABUT KELAPA
Authors: Herdianto Hengky , Farich M. Alfi Zahwanul
Published: October 2017

Manusia memiliki batas kemampuan mendengar suara pada rentang hingga 140 dB, lebih daripada itu akan terjadi kerusakan pada organ-organ dalam gendang telinga. Ampas tebu PG Kremboeng mengandung 70,97% silikat murni yang berpotensi memberikan penguatan pada papan serat dan meningkatkan performa serap bunyi. Metode yang digunakan untuk sintesis nano silikat ampas tebu dilakukan dengan cara Pretreatment BBA, tukar kation silikat, dan pencucian gel kering. Komponen silikat dan produk lain dalam ampas tebu ditentukan menggunakan difraksi sinar-X (XRD). Morfologi xerogels nano silikat dan papan serat telah diteliti dengan menggunakan Scanning Electron Microscopy (SEM). Daya serap ditentukan dari berat sebelum dan sesudah perendaman dalam air 24 jam. Pengujian keteguhan patah dan Modulus of Elasticity dilakukan dengan Universal Testing Machine. Uji Internal Bond direkatkan pada dua buah blok alumunium dengan perekat besi dan dibiarkan mengering. Koefisien serap diukur dengan sound level meter. Berdasarkan pola XRD, dapat diketahui bahwa terdeteksi medium silicate hydroxide. Berdasarkan mikrograf SEM dapat diketahui suatu struktur bongkahan yang memanjang halus terdiri atas kumpulan-kumpulan partikel nano silikat pada papan dengan template serat sabut kelapa. Sampel terbaik dalam penelitian ini adalah I (60%;17%;23%) dengan nilai DSA 82,38%, MOR 102,84 kg/cm2, MOE 11.228,52 kg/cm2, dan IB 0,83 kg/cm2. Interval nilai koofisien serap taraf intensitas bunyi antar sampel adalah 0,527 < x < 1,000 pada pagi hari, 0,544 < x < 1,000 pada siang hari, dan 0,538 < x < 1,000 pada malam hari. Sehingga secara keseluruhan interval pada segala kondisi waktu adalah 0,527 < x < 1,000.
PENGEMBANGAN PERANGKAT PEMBELAJARAN UNTUK MEREDUKSI MISKONSEPSI SISWA PADA MATERI RANGKAIAN LISTRIK DENGAN SCIENTIFIC APPROACH
Authors: Hidayatulloh Mukhlis , Humairoh Farisa , Wachidah Ulfa , Iswati Dwi Ayu , Suliyanah S
Published: October 2017

Studi pendahuluan menemukan bahwa banyak miskonsepsi yang terjadi pada materi rangkaian listrik pada topik semakin jauh dari kutub positif baterai, arus listrik semakin kecil, perubahan komponen tidak berpengaruh pada arus komponen lain, baterai sebagai sumber arus tetap, dan arus menimbulkan adanya beda potensial dari penelitian sebelumnya. Penelitian ini dilakukan dengan tujuan mengembangkan suatu perangkat pembelajaran yang mampu mereduksi miskonsepsi siswa tentang materi rangkaian listrik berdasarkan profil miskonsepsi siswa, dan menurunkan miskonsepsi siswa sesudah diterapkan pendekatan saintifik. Penelitian ini menggunakan desain ADDIE (Analysis-Design-Develop-Implement-Evaluate).Perangkat dibuat dengan menganalisis KI-KD materi rangkaian listrik.Kemudian disusun perangkat pembelajaran dengan menggunakan pendekatan saintifik. Tahap selanjutnya adalah validasi perangkat pembelajaran. Perangkat pembelajaran yang tervalidasidiujicobakan ke siswa kelas IX B SMP Laboratorium Unesa.Sebelum dan sesudah pelaksanaan pembelajaran saintifik, siswa diberikan 10 soal pretes dan postes yang dilengkapi dengan kolom Certainty of Response Index (CRI) untuk membedakan siswa yang tahu konsep (TK), tidak tahu konsep (TTK), dan miskonsepsi (MK). Jumlah miskonsepsi tiap siswa pada pretes dan postes dianalisis menggunakan uji N-Gain ternormalisasi. Dari hasil penelitian didapatkan kesimpulan bahwa pendekatan saintifik mampu mereduksi miskonsepsi siswa dengan kriteria rendah hingga sedang serta kelayakan dari tiap-tiap bagian perangkat pembelajaran dalam kategori layak dan sangat layak
COULOMB STRESS CHANGES DUE TO RECENT ACEH EARTHQUAKES
Authors: Madlazim M
Published: October 2017

Coulomb stress change analysis has been applied to understand whether the 2013/07/02 (Mw=6.1) has been triggered by 2013/01/21 earthquake (Mw=6.1) the proximity to failure on the Aceh segment of Sumatra Fault Zone (SFZ). We examine the problem of how one earthquake might trigger another using Coulomb stress changes plotting. To plot the Coulomb stress changes, we used Global CMT data for the both earthquakes and used GEOFON data for manually revised epicenters of its aftershocks. The earthquakes are located on Aceh segment of the historic no recorded large earthquake. Coulomb stress changes modeling of the both earthquakes and plot their aftershocks. Surprisingly, the 2013/07/02 earthquake is located on increasing Coulomb stress changes region of 2013/01/21 earthquake plotting. Here explain that the 2013/07/02 earthquake has been triggered by the 2013/01/21 earthquake. Further, the two aftershocks of the 2013/07/02 earthquake is located on increasing Coulomb stress changes region of 2013/07/02 earthquake plotting. So that, the aftershocks has been triggered by increasing Coulomb stress changes of the 2013/07/02 earthquake.
PENGARUH PERUBAHAN INTENSITAS CAHAYA HALOGEN RUTHENIUM (N719) FOTOSENSITIZER DALAM DYE-SENSITIZED SOLAR CELL(DSSC)
Authors: Hardani H , Darmaja Hendra , Darmawan Muh. Iman , Cari C , Supriyanto Agus
Published: October 2017

Penelitian ini merupakan penelitian awal untuk mempelajari dan memahami proses pembuatan sel surya berbasis Dye Sensitized Solar Cell (DSSC) menggunakan Ruthenium (N719). Lapisan fotoelektroda TiO2 menggunakan pasta TiO2 ukuran 21 nm yang dideposisi menggunakan teknik spin coating dan pewarna N719 sebagai dye sensitizer. Counter elektroda Platina dideposisi menggunakan teknik sputtering. Parameter proses yang mempengaruhi karakteristik listrik sel surya dianalisa dan diukur. Karakteristik kurva I-V sel surya diukur menggunakan Kethely dengan variasi intensitas yaitu 100 Watt/m2, 250 Watt/m2, 500 Watt/m2, 750 Watt/m2 dan 1000 Watt/m2.Prototipe sel yang terbaik menghasilkan effisiensi sebesar 0,15%.Uji absorbansi menggunakan Spectrophotometer UV Visible 1601 PC dan uji sifat kelistrikan menggunakan Elkahfi 100/Meter I-V. Hasil menunjukkan bahwa pewarna organik sintesis ruthenium (N719) memiliki absorbansi yang kuat pada panjang gelombang 400-550 nm ini menjadikan dye ruthenium (N719) perlu untuk di selidiki sebagai bahan fotosensitizer DSSC.
Dampak Akulturasi Budaya pada Kesenian Rakyat
Authors: Soemaryatmi Soemaryatmi
Published: October 2017

The sub district of Selo lies between the slope of Merapi and Merbabu mountains. It has several arts which are still developing because of the support from the surrounding societies. Folk arts in Selo have been performed in second and forth weeks since 2008 in the Hall of Tourism Office, Selo sub district. Some of the dance forms have come to acculturation, for example, dances of Campur Bawur, Suro Indeng, Buditani and Prajuritan. Folk arts become a media for conveying feeling and thinking coming from the artist along with the supporting society. Involvemen of the arts in ritual as well as non ritual events shows that the arts have important role in the societyâ€™s life.The dances of Campur Bawur and Prajuritan Â as the media of expression have been performed in onther areas such as Surakarta for the sake of appreciation and entertainment. Arts performance also represents the societyâ€™s legitimacy or belief of the dead spirit. The dead spirit as the embryo of human being and the societies is considered to be able to protect and give safety to the socienty. As an entertainment, the form of its movement is simple and the accompaniment is dynamic. Every per- formance is mostly affected by situation of the society. Â The forms of make up, costums, movements, and accompaniment have mixed with moern performance.Â Keywords: folk dance, aculturation, entertainment.
Komunikasi Estetik dalam Seni Pertunjukan Teater Rakyat Sandiwara Cirebon
Authors: - Jaeni -
Published: October 2017

ABSTRACTÂ This research is aimed at studying aesthetic communication and its values in folk theatre per- formance, sandiwara Cirebon. This qualitative research with communication ethnography approach tries to scrutinize the event of sandiwara performance as communication event between the society in Cangkring village, Plered, Cirebon. The result shows that the aesthetic of sandiwara Cirebon has values, they are, feeling-experience values and socio-cultural values. Aesthetic values which are in- herent in the event of sandiwara Cirebon performance is an expression and reflection based on world views, beliefs, and values adopted by local people in the socio cultural life. To interpret those values, communication participant, artists, and public construct meaning of aesthetic communication based on communication context included in sandiwara Cirebon performance, namely contexts of intra- personal, public, culture, and transcendental.Â Keywords: Communication, Aesthetic, Ethnography, Performance, Theatre.Â Â Â
Pengaruh Model Pembelajaran dan Kemampuan Gerak Tari Terhadap Kecerdasan Emosional Anak Usia Dini
Authors: Yetti Elindra -
Published: October 2017

ABSTRACTÂ The objectives and targets in this study was to determine the effect of learning models and the ability dance movement toward early childhood emotional intelligence. Emotional intelligence is the ability to recognize emotions, managing emotions, motivating oneself, recognizing emotions of others (empathy) and the ability to build relationships (cooperation) with other people. The research method used in this study is the experimental method. In the experiment, there are two groups of subjects namely experimental group and control group. Because the research hypothesis is the hypothesis of interaction, then the most appropriate design is factorial desig;n, factorial design used was 2 x 2 fac- torial design. Treatment variable is the learning model, are considered to be a model student center and a teacher center, while the variable attribute is the ability to dance, dance movement capabilities are classified into high and low dance movement. The results showed that there are significant learn- ing model and the ability to dance on the emotional intelligence of young children. The implications obtained in this study that the experience of dance movement with a model of student learning center is an important cornerstone in the development of emotional intelligence since early childhood. Based on the best learning implications Art Culture and Skills should give students experience in dance movement. With that in mind, the potential students will be able to develop optimally.Â Kata Kunci: Learning model, dance movement, andÂ  emotionalÂ  intelligenceÂ
Rekonstruksi Sejarah Seni Dalam Konstruk Sejarah Visual
Authors: Dienaputra Reiza D
Published: October 2017

ABSTRACTArt History is a category of history writing that is rich with research object. This is along withthe width of art definition scope. In the most current development, the work of art history iseasier to find in the form of scientific work at university, either essay of undergraduate (skripsi),thesis, or dissertation. Observing the encouraging development, some efforts to make the arthistory work either more qualified or more interesting to be enjoyed are needed. One of theefforts can be taken is by reconstructing art history in the visual history construct.Reconstruction of art history in visual art construct requires the using of visual source as themain source of writing and visual history research method as the chosen method. By using themethod, the produced art history will be rich with visual fact, either moving pictures or staticones.Keywords: art history, visual history, visual sourceABSTRAKSejarah seni adalah sebuah kategori penulisan sejarah yang kaya dengan obyekpenelitian. Hal ini seiring dengan luasnya ruang lingkup definisi seni. Dalamperkembangan terbaru, karya sejarah seni lebih mudah ditemukan dalam bentukkarya ilmiah di universitas, baik tulisan para sarjana (skripsi), tesis, ataupun disertasi. Dalam mencermati perkembangan yang menggembirakan tersebut, diperlukan upaya- upaya untuk membuat karya sejarah seni yang lebih berkualitas dan lebih menarikuntuk dinikmati. Salah satu upaya yang dapat ditempuh adalah denganmerekonstruksi sejarah seni dalam konstruk sejarah visual. Rekonstruksi sejarah senidalam konstruk sejarah visual memerlukan penggunaan sumber visual sebagai sumberutama penulisan sejarah dan metode penelitian visual sebagai metode yang dipilih. Dengan menggunakan metode ini, sejarah seni yang dihasilkan menjadi kaya akanfakta visual, baik gambar-gambar bergerak maupun gambar-gambar statis. Kata kunci: sejarah seni, sejarah visual, sumber visual
Perubahan Bentuk dan Fungsi Pertunjukan Ronggeng Gunung
Authors: Suhaeti Etty
Published: October 2017

ABSTRACTThe art of Ronggeng Gunung that grows and develops in the southern part of the district Ciamis is still continuously preserved until now. One effort to preserve its existence is through various changes, both in terms of its function in the community and in the form of its show. However, the changes have not been able to raise this folk art as in its previous victory, in which Ronggeng Gunung is greatly adored by its lover community. The research used qualitative method in order to reveal the process of the changes. The result of the research shows that the changes of the form of performance are mainly influenced by two factors, namely the internal and external factors. The two effects of changes are caused by the consciousness of the individual of community on his own weaknesses, and the external influences of the social culture which are felt more profitable.Keywords: Ronggeng Gunung, internal factor, external factorABSTRAKKesenian Ronggeng Gunung yang tumbuh dan berkembang di Kabupaten Ciamis bagian selatan masih terus dilestarikan hingga saat ini. Salah satu upaya untuk mempertahankan keberadaannya yaitu dengan adanya berbagai perubahan, baik dari segi fungsinya di masyarakat maupun pada bentuk pertunjukannya. Akan tetapi, perubahan tersebut belum mampu mengangkatnya seperti pada masa kejayaannya dahulu, di mana Ronggeng Gunung sebagai sebuah kesenian rakyat sangat digandrungi oleh masyarakat pecintanya. Penelitian ini menggunakan metode kualitatif untuk mengungkap proses perubahan yang terjadi. Hasil penelitian menunjukkan bahwa perubahan bentuk pertunjukan secara inti dipengaruhi oleh dua faktor, yaitu faktor internal dan faktor eksternal.Kedua pengaruh perubahan tersebut diakibatkan oleh adanya kesadaranindividu masyarakat akan kekurangan dirinya, dan adanya pengaruh- pengaruh dari luar budaya masyarakat yang dirasakan lebih menguntungkan.Kata Kunci : Ronggeng Gunung, faktor internal, faktor eksternal
Menggali Makna Upacara Maulid Nabi di Padang Pariaman Sumatera Barat
Authors: Suryanti Suryanti
Published: October 2017

ABSTRACTThe celebration of Maulid Nabi, known as “Dikie Maulid”, is a tradition of Padang Pariaman society to celebrate the birth of prophet Muhammad (peace be upon him). The celebration is a routine activity which is believed having ethics and aesthetics values, so that it becomes a religious ritual of the society. This research used qualitative method in order to reveal the meaning of the people’s behavior in various social situations. The result of the research shows that the celebration of Dikie Maulid is an Islamic religious expression with various activities such as malamang, mahanta kue, and bajamba, and it constitutes the identity of local culture of Padang Pariaman society. There are various art forms and elements in the ceremony of Maulid Nabi, among others are: literature, music, dance, and fine arts. The ceremony related to some events that are considered significant to the community.Keywords: dikie maulid, malamang, mahanta kue, bajambaABSTRAKPerayaan Maulid Nabi, yang dikenal dengan “Dikie Maulid”, adalah sebuah tradisi masyarakat Padang Pariaman untuk merayakan kelahiran nabi Muhammad (SAW). Perayaan ini merupakan kegiatan rutin yang dipercaya memiliki nilai-nilai etis dan estetis, sehingga menjadi sebuah ritual keagamaan masyarakat tersebut. Penelitian ini menggunakan metode kualitatif untuk mengungkap makna dari perilaku masyarakat dalam berbagai situasi sosial. Hasil dari penelitian menunjukkan bahwa perayaan Dikie Maulid merupakan sebuah ekspresi agama Islam dengan berbagai aktifitas, seperti: malamang, mahanta kue, and bajamba, serta menjadi identitas budaya lokal masyarakat Padang Pariaman. Terdapat berbagai bentuk dan unsur seni dalam upacara Maulid Nabi ini, di antaranya: sastra, musik, tari, dan seni rupa. Upacara ini berkaitan dengan berbagai peristiwa yang dipandang penting bagi komunitasnya.Kata Kunci: dikie maulid, malamang, mahanta kue, bajamba
Pertunjukan Liong dan Barongsai di Yogyakarta: Redefinisi Identitas Tionghoa
Authors: - Sudono , - Suhartono , Simatupang GR Lono Lastoro
Published: October 2017

ABSTRACTÂ Since the reformation era, the Indonesian Chinese get their rights as citizens of the nation of IndoÂ­ nesia. They earn the right to live as citizens as the other nations in Indonesia, including the practice of their religion and belief, as well as their culture. Nevertheless, political discrimination of the New Order government for three decades had created blockage impact on cultural transfer from one geneÂ­ ration to the next. Today, when they get their freedom, the process of commodification of culture also played a role in redefining their identity. This study aims at determining how they define their identity. This study used a qualitative descriptive approach. The technique of collecting data used literature study, observations and inÂ­depth interviews. The result of the study shows that commoÂ­ dification of Chinese culture does not make the vanishment of their identity and culture, but it has strengthened the Chineseness and created the emergence of the new texts on Liong and Barongsai culture.Â Keywords: Liong, Barongsai, redefinition of Chinese identityÂ Â ABSTRAKÂ Sejak lahirnya reformasi, orang Tionghoa Indonesia memperoleh hak mereka sebagai war- ga bangsa Indonesia. Hak hidup sebagaimana warga bangsa lainnya di Indonesia telah mereka peroleh kembali, termasuk menjalankan agama dan kepercayaan, serta budaya mereka. Namun demikian, kebijakan diskriminatif pemerintah Orde Baru selama tiga da- sawarsa berdampak pada tersumbatnya transfer budaya dari generasi ke generasi beri- kutnya. Kini, ketika kebebasan tersebut didapat, proses komodifikasi budaya juga ikut berperan dalam mendefinisikan identitas mereka kembali. Penelitian ini bertujuan untuk mengetahui bagaimana mereka mendefinisikan identitas mereka. Penelitian ini meng- gunakan pendekatan kualitatif deskriptif. Teknik pengambilan data menggunakan studi literatur, pengamatan dan wawancara mendalam. Hasil penelitian menunjukkan bahwa komodifikasi atas budaya Tionghoa tidak bermuara pada matinya identitas dan hilangnya kebudayaan Tionghoa, tetapi justru telah memperkuat ke-Tionghoaan dan juga muncul- nya teks-teks baru pada produk budaya Liong dan Barongsai.Â Kata kunci: Liong, Barongsai, redifinisi identitas Tionghoa
Popularitas Tari Piring sebagai Identitas Budaya Minangkabau
Authors: - Indrayuda
Published: October 2017

ABSTRACTÂ This article aims to explain the existence of Tari Piring dance as a culture identity of Minang- kabau people, both the people who live in the origin area and outside the area. Tari Piring dance is a traditional cultural heritage of Minangkabau people which is used and preserved by Minangkabau people in their life so that it becomes culture identity of Minangkabau people. As the identity of Minangkabau people, Piring dance is able to express attitudes and behaviors as well as the charac- teristics of Minangkabau people. The dance can serve as a reflection of social and cultural life style of Minangkabau society. Through Tari Piring performance, the outsider can understand Minangkabau people and their culture. Tari Piring, therefore, is getting more adhere to the social life of Minang- kabau people in West Sumatra and in the regions overseas. In the spirit of togetherness, Minang- kabau society preserves the existence of Piring dance as the identity and cultural heritage up to the present time.Â Keywords: Piring Dance, Minangkabau cultureÂ Â ABSTRAKÂ Artikel ini bertujuan untuk menjelaskan keberadaan Tari Piring sebagai identitas bu- daya masyarakat Minangkabau, baik yang berada di daerah asal maupun di daerah peran- tauan. Tari Piring merupakan warisan budaya tradisional masyarakat Minangkabau yang digunakan dan dilestarikan oleh masyarakat Minangkabau dalam kehidupannya sehingga menjadi identitas budaya Minangkabau. Sebagai jati diri masyarakat Minangkabau, Tari Piring mampu mengungkapkan sikap dan prilaku serta karakteristik orang Minangkabau. Tari Piring dapat berperan sebagai cerminan dari corak kehidupan sosial budaya masyara- kat Minangkabau. Melalui pertunjukan Tari Piring, masyarakat luar dapat memahami orang Minangkabau dan budayanya. Oleh karena itu, sampai saat ini Tari Piring semakin melekat dengan kehidupan sosial masyarakat Minangkabau di Sumatera Barat maupun di daerah perantauan. Dengan semangat kebersamaan, masyarakat Minangkabau mampu mempertahankan keberadaan Tari Piring sebagai identitas dan warisan budayanya hingga masa kini.Â Kata kunci : Tari Piring, budaya Minangkabau
Metode Transformasi Kaidah Estetis Tari Tradisi Gaya Surakarta
Authors: Hastuti Bekti Budi , Supriyanti Supriyanti Supriyanti
Published: October 2017

ABSTRACTThis paper focuses on the analysis of the transformation method of the Surakarta style dance tradition of the aesthetic rules. The transformation of this traditional dance aesthetic rules cannot be separated from the characteristic of dance i.e. endhel or lurah and oyi or lanyap for female dance, and of fine male dances i.e. luruh and lanyap, madyatayo or katongan, and of strong male dances, i.e. kambeng, kalang kinantang, bapang kasatriyan and bapang jeglong. The characteristic of each dance has its own dance pose patterns i.e. ten dance pose patterns, namely merak ngigi, sata ngetap, swiwi, kukila tumiling, branjangan ngumbara, mundhing mangundah, wreksa sol anggiri gora, pucang kanginan, sikatan met boga, and ngangrang bineda. These dance pose patterns should fol- low the body pose disciplines, i.e adeg doran katangi, ulat tajem, jangguh, jangga, jangga nglung gading, jaja mungul, pupu merendah, cingklok angglong and dlamkan malang. The basic elements of dance i.e. wiraga, wirama, and wirasa described by the aesthetic norms of Hasta Sawanda, i.e. pacak, pancat, ulat, lulut, wilet, luwes, wirama and gendhing has the deep philosophical value of sengguh, lungguh and mungguh.Keywords: hastha sawanda, aesthetic, choreography, dance traditions ABSTRAKTulisan ini difokuskan pada analisis metode transformasi kaidah estetis tari tradisi gaya Surakarta. Transformasi kaidah estetis tari tradisi ini tidak dapat dipisahkan dengan perwatakan tari seperti endhel atau branyak dan oyi atau luruh untuk tari putri, tari putra alus adalah luruh dan lanyap, madyataya atau katongan, dan tari putra gagah yaitu kambeng, kalang kinantang, bapang kasatrian, dan bapang jeglong. Setiap perwatakan tari itu memiliki sikap laku tari, yaitu sepuluh patrap beksa: merak ngigel, sata ngetap swiwi, kukila tumiling, branjangan ngumbara, mundhing mangundah, wreksa sol, anggiri gora, pucang kanginan, sikatan met boga, dan ngangrang bineda. Sikap laku tari ini harus mengikuti disiplin sikap tubuh yaitu: adeg doran katangi, ulat tajem, janggut, jangga, jangga nglung gadung, jaja mungal, pupu merendah, cingklok angglong, dan dlamakan malang. Elemen dasar tari, yakni wiraga, wirama, dan wirasa yang dijabarkan oleh norma estetis Hastha Sawanda, yaitu: pacak, pancat, ulat, lulut, wilet, luwes, wirama, dan gendhing, yang memiliki kedalaman nilai filosofis sengguh, lungguh, dan mungguh.Kata kunci: hastha sawanda, estetis, koreografi, tari tradisiKata kunci: hastha sawanda, estetis, koreografi, tari tradisi
The Developmental Of Social Studies By Using Inquiry Model In Sdi Kardina Massa Blitar
Authors: Mustofa Hadi
Published: October 2017

The observation results of Social studies process in Islamic Elementary School Blitar city are founded many problems. They are: (1) Social studies is not interesting, (2) the study is not meaningful for the students, (3) the students feel bored with the study, (4) the concepts which are presented to the students are separately, (5) the study is limited to read a book or hear an explanation, and (6) the result score of social studies is low. Based on those problems above, so it needs a study model exchange which more interesting than before. One of the study models which can be done is social study which has an inquiry. This research uses developmental model which is done by many steps: (1) introduction study, (2) developmental model, (3) test model. The results of this research are shown that Social studies by using inquiry study model is effective and efficient to increace the student competence for getting knowledge, attitude, and skills as the goals of the study. In particular, attitude and skills which are mastered by the student are scientific attitude and skills.
Ocular morbidity in school children in eastern region of Nepal
Authors: Dhungana Arun Prasad
Published: October 2017

Background: Childhood blindness is a priority area because of the number of years of blindness that ensues. Data on the prevalence and causes of blindness and severe visual impairment in children are needed for planning and evaluating preventive and curative services for children.Objective: The aim of the study is to determine the prevalence of ocular morbidity among school children in eastern Nepal.Method: A cross-sectional study was designed to evaluate ocular status of primary school children in six government schools of the eastern region of Nepal. A complete eye examination was carried out in all children including slit lamp examination, fundus examination, retinoscopy and subjective refraction. Data was analyzed using Microsoft excel. The screening is based on the Indiana school vision screening guideline.Results: A total of 847 children were examined in visits. The mean age of study population was 10.25 years. Among them 450 were males and 397 were females. The results showed that 12.05% of the total students had ocular and visual morbidities. Refractive error was found to be the commonest abnormality (62%) in school children. The commonest type of refractive error found in the study was myopia followed by hyperopia. Alternate divergent squint is the commonest type of strabismus. Other abnormalities found were BSV (binocular single vision) abnormalities, amblyopia and conjunctival disorder.Conclusion: The vision screening program has proved to be very helpful in early detection, diagnosis, referral and management of ocular morbidities in school children. The results of the study strongly suggest that screening of school children for ocular problems should be done at regular intervals and it should be one of the prime components of school health program.Journal of Kathmandu Medical CollegeVol. 5, No. 3, Issue 17, Jul.-Sep., 2016, page: 95-97
Epitope Sequences in Dengue Virus NS1 Protein Identified by Monoclonal Antibodies
Authors: Rocha Leticia , Alves Rubens , Caetano Bruna , Pereira Lennon , Mitsunari Thais , Amorim Jaime , Polatto Juliana , Botosso Viviane , Gallina Neuza , Palacios Ricardo , Precioso Alexander , Granato Celso , Oliveira Danielle , Silveira Vanessa , Luz Daniela , Ferreira Luís , Piazza Roxane
Published: October 2017

Dengue nonstructural protein 1 (NS1) is a multi-functional glycoprotein with essential functions both in viral replication and modulation of host innate immune responses. NS1 has been established as a good surrogate marker for infection. In the present study, we generated four anti-NS1 monoclonal antibodies against recombinant NS1 protein from dengue virus serotype 2 (DENV2), which were used to map three NS1 epitopes. The sequence 193AVHADMGYWIESALNDT209 was recognized by monoclonal antibodies 2H5 and 4H1BC, which also cross-reacted with Zika virus (ZIKV) protein. On the other hand, the sequence 25VHTWTEQYKFQPES38 was recognized by mAb 4F6 that did not cross react with ZIKV. Lastly, a previously unidentified DENV2 NS1-specific epitope, represented by the sequence 127ELHNQTFLIDGPETAEC143, is described in the present study after reaction with mAb 4H2, which also did not cross react with ZIKV. The selection and characterization of the epitope, specificity of anti-NS1 mAbs, may contribute to the development of diagnostic tools able to differentiate DENV and ZIKV infections.
Total Phenolic and Yellow Pigment Contents and Antioxidant Activities of Durum Wheat Milling Fractions
Authors: Fu Bin , Chiremba Constance , Pozniak Curtis , Wang Kun , Nam Shin
Published: October 2017

The aim of this study was to investigate the distribution of total yellow pigments, total phenolic compounds, and their antioxidant activities in various durum wheat milling fractions. Carotenoid composition of yellow pigment extract was also examined using UPLC. The ABTS radical scavenging activity of the milling fractions decreased in the order of short bran/bran > feed flour > flour/semolina in both total phenolic and total yellow pigment extracts. Yellow pigments extracts from bran, short bran, and feed flour exhibited 5.6–15.4% higher antioxidant activity than those of total phenolic extracts from the corresponding milling fractions. The UPLC results showed a non-carotenoid peak at Rt 0.47 min which was present in fractions of the grain outer layers but absent in semolina and flour. This peak absorbed in the UV range of 271 to 327 nm. These observations suggest that the unknown peak could be composed of phenolic compounds co-extracted in their free form with carotenoids in the polar water-saturated butanol solvent. The compounds in this peak could result in overestimation of carotenoid content and antioxidant activity in bran, short bran and feed flour as the peak contributed to 18.3–26.0% of total carotenoids if it was taken into account.