bluuebunny/crossref_metadata_2025 huggingface dataset:
Öğretmen Adayı Bilgi ve İletişim Teknolojisi Yeterlikleri Ölçeğinin Türkçe’ye Uyarlanması
Authors: GÖKÇEARSLAN Şahin , KARADEMİR COŞKUN Tuğra , ŞAHİN Sami
Published: July 2019

Bu araştırmada, Tondeur ve diğerleri (2017) tarafından geliştirilen öğretmen adaylarına yönelik “Bilgi ve İletişim Teknolojisi Yeter-likleri Ölçeği’nin” Türkçe uyarlaması amaçlanmış ve psikometrik analizleri gerçekleştirilmiştir. Doğrulayıcı faktör analizi ve psikometrik analizler 331 öğretmen adayı üzerinde yürütülmüştür. Doğrulayıcı faktör analizi sonucunda ölçeğin 2 boyutlu modelinin Türk kültürüne uygun olduğu belirlenmiştir. Ölçek, 9 maddesi öğretmen adayının öğrencilerin bilişim teknolojilerini kullanımını destekleme, 7 maddesi ise bilişim teknolojilerini öğretim tasarımında kullanma öz yeterliği algısını ölçmek üzere iki faktör altında toplanmıştır. Ölçeğin iç tutar-lılığını gösteren Cronbach Alfa katsayısı ölçeğin bütünü için 0.944’dir. Buradan hareketle, ölçek öğretmen adaylarının bilgi ve iletişim teknoloji yeterliklerini ölçmede kullanılmak üzere güvenilir ve geçerli bulunmuştur. Ayrıca, yapılan psikometrik analizler göre de öğret-men adaylarının BİT yeterlik düzeylerinin yüksek olduğu, cinsiyet, sınıf ve yaş düzeyinin bu sonuçlar üzerinde anlamlı bir etkisinin olmadığı bulunmuştur.
Ortaokul Öğrencilerinin Dinleme/İzleme Öz-Yeterliklerinin Çeşitli Değişkenlere Göre İncelenmesi
Authors: DEMİRCAN Uğur , AYDIN İ.seçkin
Published: July 2019

Problem Durumu: Bu çalışmada ortaokul öğrencilerinin
dinleme/izleme becerisine yönelik öz yeterlik algıları sınıf düzeyi, cinsiyet,
anne-baba eğitim durumu, önceki yıla ait Türkçe dersi başarı puanı gibi
değişkenlere göre incelenmiştir.

Yöntem: Araştırma, “İlişkisel Tarama Modeli”nde betimsel bir
çalışmadır. Bu model bağlamında araştırma, nicel araştırmaya bağlı olarak
korelasyonel araştırma yönteminde gerçekleştirilmiştir. Öğrencilerin dinleme/izleme
öz yeterlik düzeylerini belirlemek için geçerliği ve güvenirliği kanıtlanmış
“Dinleme Öz Yeterlik Ölçeği” kullanılmıştır. Ölçek kullanılmadan önce
doğrulayıcı faktör analizi yapılarak ölçeğin geçerlik ve güvenirliğine ek kanıt
elde edilmiştir. Araştırma İzmir ilinde 6,7 ve 8. sınıflarda öğrenim gören 748
ortaokul öğrencisi üzerinde yapılmıştır.

Bulgular: Araştırma sonucunda cinsiyete göre dinleme öz
yeterliğinin kız öğrencilerin lehine anlamlı şekilde farklılaştığı; sınıf
düzeyine göre 6. sınıfların en yüksek, 8. sınıfların en düşük dinleme öz
yeterliğine sahip olduğu; anne-baba öğrenim durumuna göre veli eğitim durumu
yüksek olan öğrencilerin dinleme öz yeterliklerinin de yüksek olduğu; önceki
yıl Türkçe dersi başarı puanları ile dinleme öz yeterliği arasında olumlu yönde
bir ilişkinin olduğu sonuçlarına ulaşılmıştır.

Sonuç ve Öneriler: Elde edilen sonuçlar alandaki diğer
çalışmalarla karşılaştırılmış ve yorumlanmıştır, sonuçlardan hareketle alana
öneriler getirilmiştir.
Özel Okul ve Devlet Okulunda Görev Yapmış Sınıf Öğretmenlerinin Öğretim Programlarını Uygulamada Karşılaştıkları Farklılıklar
Authors: ÜNSAL Serkan , ÇETİN Abdullah
Published: July 2019

Bu araştırmanın amacı devlet ve özel
okulların her ikisinde de görev yapmış sınıf öğretmenlerinin deneyimleri
bağlamında, özel okul ve devlet okullarında öğretim programlarını uygulama
açısından ne gibi farklılıkların olduğunu ortaya çıkarmaktır. Araştırma nitel
araştırma desenlerinden olgubilim deseninde yürütülmüştür. Araştırma verileri
yarı yapılandırılmış görüşme formuyla toplanmıştır. Veriler içerik analizi
yöntemiyle analiz edilmiştir. Araştırmanın sonucunda özel okulda çalışan
öğretmenlerin öğretim programının içeriğine bağlı kaldıkları, ek kaynak
aldırdıkları ve bazı derslere daha fazla ağırlık verdikleri görülmüştür. Özel
okullarda yönetimin desteği, öğrencilerin hazırbulunuşluğu ve okulun
fiziki donanımın iyi olması nedeniyle öğretim programını uygulamada kullanılan
yöntem ve teknik bakımından farkın olduğu, ölçme ve değerlendirme bakımından
deneme sınavlarıyla öğrencileri değerlendirme dışında farkın olmadığı sonucuna ulaşılmıştır.
Hemşirelik Eğitiminde Altı Şapkalı Düşünme Tekniğinin Kullanımı: İki Farklı Tekniğin Karşılaştırılması
Authors: ÖZKÜTÜK Nilay , ORGUN Fatma , SEZER Hale
Published: July 2019

Öğrenciler her gün basit ya da zor
birçok karar vermektedirler. Bu zor kararları vermeye çalışırken, düşünülmüş
kararlara varmada tüm adımları düşünmeyi sıkça başaramamaktadırlar. Altı
şapkalı düşünme tekniği, zor yaşam kararlarını vermede çeşitli görüşlerden
yararlanma ve düşünmede öğrencilere yardım etmektedir. Amaç: Hemşirelik
eğitiminde altı şapkalı düşünme tekniği ile düz anlatım tekniği karşılaştırılarak
öğrenci hemşirelerin öğrenme başarısına hangi tekniğin daha etkili olduğunun
belirlenmesi amaçlanmıştır. Yöntem: Ön test, son test kontrol gruplu deneme
modeline göre yarı deneysel olarak gerçekleştirilen araştırma kapsamına,  bir hemşirelik fakültesinde öğrenim gören
birinci sınıf öğrencilerinden araştırmaya katılmayı kabul eden öğrenciler
alınmıştır (n=126). Araştırma verileri, “Tanıtıcı Bilgi Formu” ve “Sağlığı
Geliştirme” konusunda araştırmacılar tarafından ilgili literatür doğrultusunda
hazırlanan bilgi testleri ön-test, son-test kullanılarak toplanmıştır.
Verilerin analizinde, sayı, yüzde dağılımları ve t-testi yapılarak
değerlendirilmiştir. Bulgular: Deney grubunun son test puan ortalaması
58,09±18,09 ile kontrol grubunun son test puan ortalaması 51,98±14,32 bulunmuştur.
Deney ve kontrol grubunun son test puan ortalamaları arasında istatistiksel
olarak anlamlı bir fark olduğu belirlenmiştir (p<0.05). Öğrenciler, Altı
Şapkalı Düşünme tekniğinin farklı, eğlenceli, zevkli olduğunu ifade etmişlerdir. Sonuçlar:
Altı şapkalı düşünme tekniğinin başarıyı geleneksel yöntemlere göre daha çok
arttırdığı sonucuna varılmıştır. Ayrıca, çalışmanın hemşirelik öğrencilerinin
kritik düşünme yeteneklerinin gelişmesi için önemli olan yaratıcı eğitim
yönteminin kullanımının test edilmesi açısından da önemli olduğu
düşünülmektedir.
Öğretmenlerin Eleştirel Düşünme Eğilimlerinin Örgütsel Bağlılık Üzerindeki Etkisi
Authors: KURBAN Cennet , TOK Türkay Nuri
Published: July 2019

Bu araştırmada öğretmenlerin eleştirel düşünme eğilimlerinin,

örgütsel bağlılık düzeylerine etkisi araştırılmıştır. Araştırmanın örneklem

grubu Denizli iline bağlı bir ilçede görev yapan 185 öğretmenden oluşmaktadır.

Öğretmenlerin eleştirel düşünme eğilimlerini ölçmek amacıyla Eleştirel Düşünme

Eğilim Ölçeği’nden, örgütsel bağlılık düzeylerini ölçmek için ise Meyer ve

Allen’in geliştirdiği Örgütsel Bağlılık Ölçeği’nden yararlanılmıştır. Eleştirel

düşünme eğilimi değişkeninin örgütsel bağlılık üzerinde, kıdem yılının normatif

bağlılık boyutu üzerinde ve okulda çalışma süresinin devam bağlılığı üzerinde

anlamlı yordayıcı olduğu sonucuna ulaşılmıştır. Bilişsel olgunluk boyutunun

devam bağlılığı, duygusal bağlılık ve normatif bağlılık boyutlarında anlamlı

bir etki oluşturduğu ve katılım boyutunun devam bağlılık boyutu üzerinde

anlamlı bir yordayıcı olduğu görülmektedir.
Öğretmen Adaylarının Ekolojik Vatandaşlık Düzeylerinin Karşılaştırılması
Authors: KARATEKİN Kadir , SALMAN Muhammed , UYSAL Cevdet
Published: July 2019

Büyük çevre felaketlerini önlemek ve oluşan çevre sorunlarına çözüm bulmak, içinde yaşadığımız yüzyılın önemli gündem maddelerinden birisi olmuştur. Ancak 20. Yüzyılın ikinci yarısından itibaren küresel boyutlara ulaşan çevre sorunları ile mücadelede pek de başarılı olunduğu söylenemez. Çevre sorunlarının çözümüne bu sorunlara neden olan insanoğlunun davranışlarını değiştirmekle başlanabilir. Bunun en etkili yolu ise eğitimdir. Eğitim makbul vatandaş yetiştirmenin önemli bir aracıdır. Günümüzde makbul vatandaş aynı zamanda ekolojik vatandaştır.  Ekolojik vatandaş kendi haklarını koruduğu gibi doğanın da haklarını koruyan vatandaştır. Bunun için sorumluluk alır. İçinde yaşadığımız dünyayı korumak ve geleceğe taşımak için aktif rol oynar ve adalet duygusuyla hareket eder.  Bu yeni vatandaşlık anlayışının bireylere kazandırılmasında öğretmenler önemli bir rol oynamaktadır. Çocukların ekolojik vatandaş olmalarında özellikle okulöncesi öğretmenleri, sınıf öğretmenleri, sosyal bilgiler öğretmenleri ve fen bilimleri öğretmenleri etkili olmaktadır. Dolayısıyla Eğitim Fakültelerinde öğrenim gören öğretmen adaylarının ekolojik vatandaşlık düzeyleri öğretmen olduklarında çocukların ekolojik vatandaş olmalarında etkili olacaktır.  Bu araştırmanın amacı da farklı branşlarda öğrenim gören öğretmen adaylarının ekolojik vatandaşlık düzeylerini tespit etmek ve bir karşılaştırmasını yapmaktır. Bu amacı gerçekleştirmek için sınıf öğretmenliği, sosyal bilgiler öğretmenliği, fen bilgisi öğretmenliği ve okul öncesi öğretmenliği branşlarında öğrenim gören toplam 528 öğretmen adayına Karatekin ve Uysal  (2018) tarafından geliştirilen Ekolojik Vatandaşlık Ölçeği (EVÖ) uygulanmıştır. Betimsel tarama modeli kullanılarak yapılan bu araştırmanın sonucunda öğretmen adaylarının orta düzeyde ekolojik vatandaş oldukları görülmüştür. Öğretmen adaylarının ekolojik vatandaşlık düzeyleri üzerinde öğrenim gördükleri öğretmenlik branşının bir etkisinin olmadığı görülmüştür. Sorumluluk boyutunda sınıf öğretmenliği branşında öğrenim gören öğretmen adaylarının aldıkları toplam puanlar; sosyal bilgiler ve okulöncesi öğretmenliği  branşlarında öğrenim gören öğretmen adaylarının aldıkları toplam puanlara göre anlamlı bir farklılık göstermiştir.  Araştırmaya katılan öğretmen adaylarının en düşük puan aldıkları boyut katılım, en yüksek puan aldıkları boyut ise hak ve adalet boyutudur.
The Impact of Using Electronic Brainstorming Strategy in a Blended Learning Environment on Grade-Eleven Female Students’ Achievement in Islamic Education in the Sultanate of Oman
Authors: Alsaqri Rabeeah M. , Al Salmi Mohsen N.
Published: July 2019

The study aimed to calibrate Oman data of the PIRLS test using the graded response model and to examine the psychometric properties of it, as well as identify the fit and unfit of its items. PIRLS2011 test booklets were used, which consisted of 146 test items (74 dichotomous and 72 polytomous). Items were divided into 13 booklets; each with two blocks (one literary and one informational). PIRLS test booklets were administered to 13 groups of fourth grade students in Sultanate of Oman with a total sample of 10394 students. Assumptions of IRT (unidimensionality and local independence) were examined and supported. Also, item fit was examined and supported using Samejima’s graded response model. The data was analyzed by Multilog7.03 program to estimate both item and ability parameters. Results indicated that the assumptions of IRT were proved. Also, IRT analysis revealed that 8 items showed unfit which represents only 5% of the test items. So, this result confirms that the test has good psychometric properties under the IRT.
The Relationship between Emotional Intelligence and the Level of Literary Appreciation Skills among Arabic Language Teachers for the Secondary Stage in Najran Region
Authors: Alshehri Mohammed H. , Atoom Abdalgader M.
Published: July 2019

The study aimed at identifying the relationship between emotional intelligence and the level of literary appreciation skills among Arabic language teachers for the secondary stage in Najran region. To achieve this aim, the researchers used the descriptive analytical method. The researchers used two questionnaires; the first one was to measure the level of emotional intelligence, which consisted of 38 items, and the second one was to measure the level of literary appreciation scale, which consisted of 20 items. The research sample consisted of 105 teachers chosen randomly, 28 males and 77 females. The results of the study indicated that the level of emotional intelligence and the level of literary appreciation skills among the teachers was high. There were no statistically significant differences at the level of emotional intelligence attributed to the variables of gender, qualification, and experience, and there were no statistically significant differences at the level of literary appreciation skills attributed to the variables of gender, qualification, and experience. In addition, the results indicated that there was a significant correlation between the level of emotional intelligence and the level of literary appreciation skills. There was a statistically significant effect of emotional intelligence and its dimensions on the level of literary appreciation skills among Arabic language teachers. Emotional intelligence was able to explain 0.503 of the variances in the level of literary appreciation skills among teachers of Arabic language.
Information Retrieval System Evaluation: A Case Study at Badan Pengkajian dan Penerapan Teknologi (BPPT) Library
Authors: Yasin Ahmad , Rachman Margareta Aulia
Published: July 2019

Di era digital saat ini, sistem alat bantu perpustakaan harus dievaluasi untuk mengetahui kepuasan dan efektivitas penggunaannya. Penelitian ini membahas evaluasi sistem temu balik informasi di Perpustakaan Badan Pengkajian dan Penerapan Teknologi (BPPT). Penelitian ini menggunakan pendekatan kualitatif dengan metode deskriptif. Data dikumpulkan melalui observasi, studi dokumen dan analisis audio visual kualitatif. Hasil penelitian menunjukkan bahwa dalam hal cakupan, sistem temu balik informasi telah mampu mencakup dan memproses banyak dan beragam koleksi dari berbagai subjek yang digunakan oleh pengguna perpustakaan. Ingat dan presisi juga tinggi dan hasil pengukuran pada jeda waktu pencarian cepat dan efektif dengan waktu rata-rata 0,48 detik. Tampilan katalog juga memudahkan pengguna perpustakaan untuk menggunakan dan mencari informasi meskipun tampak kaku. Katalog online juga telah dapat membantu mengurangi upaya pengguna perpustakaan yang berlebihan dengan tampilan yang akrab serta beberapa klasifikasi sederhana yang mengelompokkan koleksi ke dalam mata pelajaran tertentu. Studi ini memberikan praktik terbaik tentang penggunaan sistem temu balik informasi di perpustakaan pemerintah yang memiliki keunikan dalam hal jenis koleksi, subjek, koleksi itu sendiri dan pengguna perpustakaan.ABSTRACTIn the digital age, library retrieval system tools must be evaluated to find out the satisfaction and effectiveness of its use. This research discusses information retrieval system evaluation at Badan Pengkajian dan Penerapan Teknologi (BPPT) library. The study used qualitative approach with descriptive method. The data was collected through observation, document study and qualitative audio visual analysis. The results showed that in terms of coverage, its information retrieval tool has been able to cover and process numerous and varied collections from various subjects used by library users. Recall and precision were also high and measurement result on search time lag was fast and effective with resulting average time of 0.48 seconds. Catalog interface made it easy for library users to use and search information even though it seemed rigid. Online catalog has able to help reduce library users excess of effort with familiar display as well as several simple classifications categorizing collections into particular subjects. This study provides best practice on the use of information retrieval system for government libraries, in which its uniqueness in terms of collection types, subject, collection itself and library users.
Consórcios intermunicipais em municípios de pequeno porte
Authors: Souza Luana Marriê de Morais , Guedes Leonardo Guerra de Rezende
Published: July 2019

Com as atuais exigências da Política Nacional de Resíduos Sólidos, os consórcios intermunicipais têm se apresentado como um caminho factível para a concretização de ações no sentido de adequação dos municípios, uma vez que nesse modelo de gestão é possível alcançar resultados superiores comparados a execução de ações individuais de cada município. A implantação de consórcios é uma opção admissível principalmente para os municípios de pequeno porte e com escassos recursos financeiros, tendo como objetivo sanar problemáticas no que tange os aspectos ambientais e sociais. Este artigo propõe uma reflexão através de revisão bibliográfica e análise comparativa de dados elencando a importância no campo da gestão de Resíduos Sólidos Urbanos (RSU) utilizando uma metodologia para avaliação dos consórcios de RSU em Minas Gerais aplicada no consórcio que está em fase de implantação na região oeste do estado de Goiás.

Palavras-chave: Consórcios Intermunicipais. Gestão Ambiental. Políticas Públicas. Gestão de Resíduos Sólidos Urbanos.
Beauplan’s Ukraine: open access georeferenced databases for studies of early modern history of Central and Eastern Europe
Authors: Polczynski Michael , Polczynski Mark
Published: July 2019

In 1630, Guillaume Le Vasseur, sieur de Beauplan, travelled to the lands of Poland-Lithuania to begin a seventeen-year military career in the Crown army. The purpose of the Beauplan’s Ukraine (BU) project is to provide a set of open access, georeferenced databases for the populated places, rivers, river fords, river rapids, islands, forests, mountains, valleys, and travel paths that are shown on a selection of maps created by Beauplan. The purpose of this document is to describe how these databases and related materials can be accessed and applied by scholars, with the ultimate goal of this work being to convert the rich source of information provided by Beauplan’s maps into a viable instrument for the laboratory of the historian of south-eastern Europe in Early Modern times.
Effect of Inerter in Traditional and Variant Dynamic Vibration Absorbers for One Degree-of-Freedom Systems Subjected to Base Excitations
Authors: Barathwaaj Dheepakram Laxmimala , Yegateela Sujay , Vardhan Vivek , Suresh Vignesh , Kaliyannan Devarajan
Published: July 2019

In this paper, closed-form optimal parameters of inerter-based variant dynamic vibration absorber (variant IDVA) coupled to a primary system subjected to base excitation are derived based on classical fixed-points theory. The proposed variant IDVA is obtained by adding an inerter alone parallel to the absorber damper in the variant dynamic vibration absorber (variant DVA). A new set of optimum frequency and damping ratio of the absorber is derived, thereby resulting in lower maximum amplitude magnification factor than the inerter-based traditional dynamic vibration absorber (traditional IDVA). Under the optimum tuning condition of the absorbers, it is proved both analytically and numerically that the proposed variant IDVA provides a larger suppression of resonant vibration amplitude of the primary system subjected to base excitation. It is demonstrated that adding an inerter alone to the variant DVA provides 19% improvement in vibration suppression than traditional IDVA when the mass ratio is less than 0.2 and the effective frequency bandwidth of the proposed IDVA is wider than the traditional IDVA. The effect of inertance and mass ratio on the amplitude magnification factor of traditional and variant IDVA is also studied.
Case study on the effectiveness of condition monitoring techniques for fault diagnosis of pumps in thermal power plant
Authors: Kurien Caneon , Srivastava Ajay Kumar
Published: July 2019

A case study was carried out to investigate the effectiveness of condition monitoring techniques in the early failure detection of pumps in a thermal power plant. Various condition monitoring techniques used in this case study involved vibration analysis, motor current signature analysis, noise monitoring and wear debris analysis. These techniques were applied on the three pumps, namely boiler feed water pump, auxiliary cooling water pump and condensate extraction pump, which have to work continuously for the operation of the thermal power plant. Vibration analysis of the auxiliary cooling water pump showed that there is a rising trend in the acceleration values at its driving and non-driving end indicating the deterioration of bearings. Motor current index range of all the pumps was found to be within acceptable limits. Wear debris analysis of lubricant in the hydraulic coupling of boiler feed water pump indicated the presence of sand, dirt and low alloy steel sliding wear particles in it. Condition monitoring techniques have been proved to be an effective technique in early failure detection of pumps.
Experimental Investigation of Drilling Small Hole on Duplex Stainless Steel (SS 2205) Using EDM
Authors: Rajaram S. , Rajkumar G. , Balasundaram R. , Srinivasan D.
Published: July 2019

This work investigates drilling of small holes of 3 mm in diameter on duplex stainless steel. Its machinability index is very low (0.66) when compared to other steels; hence, electrical discharge machining is used. The input parameters are current, spark gap, and dielectric pressure. Each input parameter is considered for three levels. Therefore, the total number of experiments is 3 × 3 × 3 = 27. To reduce the number of runs, Taguchi L9 orthogonal array is used, which have the advantage of maximum and minimum trial runs in its design. The output response is metal removal rate (MRR). To find the best operating parameter, the regression model generated using ANOVA is given as input for MATLAB genetic algorithm (GA). The experimental results indicated that models are significant. The test result indicated that the contribution of the current on the MRR is 42.42%, dielectric pressure is 35.36%, and spark gap is 1.93%. From GA, it is observed that among these three factors, lower value of current and dielectric pressure produced the maximum MRR. The SS 2205 has wide variety of applications, such as high pressure components and control valves, which have large number of components attached to it. Hence, performing micro holes on such high hardness alloy is useful.
Electrohydrodynamic Instability of a Rotating Walters’ (model B’) Fluid in a Porous Medium: Brinkman model
Authors: Rana G. C. , Chand R. , Sharma Veena
Published: July 2019

In this study, the instability of Walters’ (model B’) viscoelastic fluid in a Darcy-Brinkman-Boussinesq system heated from below saturating a porous medium in electrohydrodynamics is considered. By applying the linear stability analysis and normal modes, the dispersion relation accounting for the effect of Prandtl number, electric Rayleigh number, Darcy number, Brinkman-Darcy number, Taylor number and kinematic viscoelasticity parameter is derived. The effects of electric Rayleigh number, Darcy number, Brinkman-Darcy number and Taylor number on the onset of stationary convection have been investigated both analytically and graphically.
Numerical study of the thermal and hydraulic performances of heat sink made of wavy fins
Authors: Bouchenafa R. , Mohammed Hussein A. , Saim R.
Published: July 2019

The aim of this paper is to numerically investigate the thermal and hydraulic performances of the two heat sinks made of wavy fins (WFHS). The governing equations fitted with boundary conditions were solved using the finite volume method, and the SIMPLE algorithm for the coupling velocity-pressure. The two-equation model k-ϵ was used to describe the turbulence phenomenon. The effects of wave numbers and the amplitude of wavy fins heat sink on the thermal and flow fields are studied and compared with the plate fin heat sink (PFHS). The results show that the use of wavy fins improves significantly the heat transfer rate, accompanied by a pressure drop penalty.
Mode frequency analysis of antisymmetric angle-ply laminated composite stiffened hypar shell with cutout
Authors: Chaudhuri Puja Basu , Mitra Anirban , Sahoo Sarmila
Published: July 2019

This article deals with finite element method for the analysis of antisymmetric angle-ply laminated composite hypar shells (hyperbolic paraboloid bounded by straight edges) that applies an eight-noded isoparametric shell element and a three-noded beam element to study the mode-frequency analysis of stiffened shell with cutout. Two-, 4-, and 10-layered antisymmetric angle-ply laminations with different lamination angles are considered. Among these, 10-layer antisymmetric angle-ply shells are considered for elaborate study. The shells have different boundary conditions along its four edges. The formulation is based on the first-order shear deformation theory. The reduced method of eigen value solution is chosen for the undamped free vibration analysis. The first five modes of natural frequency are presented. The numerical studies are conducted to determine the effects of width-to-thickness ratio (b/h), degree of orthotropy (E
11/E
22), and fiber orientation angle (θ) on the nondimensional natural frequency. The results reveal that free vibration behavior mainly depends on the number of boundary constraints rather than other parametric variations such as change in fiber orientation angle and increase in degree of orthotropy and width-to-thickness ratio.
Tribological Behavior of AA7050-ZrSiO4 Composites Synthesized by Stir Casting Technique
Authors: Sakthivelu S. , Meignanamoorthy M. , Ravichandran M. , Sethusundaram P. P.
Published: July 2019

This research made an attempt to synthesize aluminum metal matrix composites through stir casting technique. The matrix material chosen in this study was AA7050 and the reinforcement material was ZrSiO4. The composites AA7050, AA7050-10%ZrSiO4, and AA7050-15%ZrSiO4 were used. The wear behavior of the aluminum matrix composites was investigated by using pin-on-disc tribometer. The advanced material has substantial development in tribological behavior when the reinforcement percentage is increased. From the experimental results, it was confirmed that sliding distance of 1200 m, applied load of 3 N and sliding speed of 2 m/s result in minimum wear loss and coefficient of friction, while adding 10%ZrSiO4 to the AA7050.
Vibration analysis of functionally graded tapered rotor shaft system
Authors: Elhannani Abdelhak , Refassi Kaddour , Elmeiche Abbes , Bouamama Mohamed
Published: July 2019

This investigation deals with the vibration analysis of a rotating tapered shaft in Functionally Graded Material (FGM). The dynamic system is modeled using the Timoshenko beam theory (FSDBT) with consideration of gyroscopic effect and rotary inertia. The equations of motion are expressed by the hierarchical finite element method based on bi-articulated boundary conditions. The material properties are continuously varied in the thickness direction of a hollow shaft according to the exponential law function (E-FGM). The presented model is validated by comparing the numerical results found with the available literature. Various analyses are carried out to determine the influence of taper angle and material distribution of the two extreme materials on the dynamic behavior of FGM conical rotors system.
Experimental Investigation of a Centrifugal Pump Hydraulic Performance in Hydraulic Transmission of Solids
Authors: Barmaki Reza , Ehghaghi Mir Biyouk
Published: July 2019

In petroleum and mine industries, the centrifugal pumps were used for transferring solid particles with water. This method is preferable to other methods because of its user friendly and economic issues. In this article by selecting a proper pump and designing test circuit, we conducted hydraulic tests for water and water mixture with solid particles. For this purpose, an experimental set-up of centrifugal pump with only water and water with solid particles was developed. Then by analyzing the test results and efficiency equation, optimal coefficients of head loss is provided to improve the pump efficiency during hydraulic transmission of solids. The experimental results of power consumption, head, and pressure difference measurements in solid–liquid systems are presented. The experimental set-up results are compared with simulation and numerical one, which show a good agreement with them. It reveals that by adding the solid particles and increasing the fluid density up to 15%, the consumed power increases by about 20%, which result in dropping the efficiency of hydraulic system up to 6%. Finally, the optimal components for developed cycle presented for evaluation the various configuration and hydraulic analysis of pure flow and flow with solid particles in various applications to enhance the most achievable efficiency.
PERBANDINGAN TINGKAT KEBOCORAN MIKRO ANTARA RESIN KOMPOSIT DAN GLASS IONOMER CEMENT SEBAGAI BAHAN PENUTUPAN FISURA (EVALUASI IN-VITRO SETELAH SATU BULAN APLIKASI)
Authors: Sundari Iin , Diansari Viona , Julianti Eka
Published: July 2019

Penutupan fisura merupakan metode pencegahan non-invasif yang efektif pada permukaaan gigi dengan pit dan fisura yang dalam dan sempit untuk mencegah terjadinya karies. Bahan penutupan fisura yang sering digunakan adalah resin komposit dan Glass Ionomer Cement (GIC). Penelitian ini bertujuan untuk mendapatkan informasi tentang perbandingan tingkat kebocoran mikro antara resin komposit dan GIC sebagai bahan penutupan fisura melalui evaluasi in vitro setelah satu bulan aplikasi. Spesimen penelitian berjumlah 16 gigi premolar rahang atas dengan pit dan fisura yang dalam dan sempit. Spesimen ini dikelompokkan menjadi 2 kelompok perlakuan. Kelompok pertama menggunakan resin komposit (3M ESPE Clinpro) dan kelompok kedua menggunakan GIC (Fuji VII). Spesimen dilakukan pengkondisian selama satu bulan didalam inkubator dan direndam dalam larutan methilene blue 5% selama 24 jam. Spesimen kemudian diamati dengan menggunakan stereo mikroskop dan diukur tingkat kebocorannya. Skor kebocoran mikro menggunakan penetrasi dye dengan tiga kriteria skor yaitu 0, 1, dan 2. Data dianalisis menggunakan statistik nonparametrik (uji Mann Whitney). Hasil analisis menunjukkan terdapat perbedaan skor kebocoran mikro yang signifikan antara bahan penutupan fisura resin komposit dan GIC (p0,05). Kelompok penutupan fisura dengan resin komposit memiliki rerata skor kebocoran mikro lebih kecil (0,25) dibandingkan kelompok penutupan fisura dengan GIC (1,875) setelah penutupan fisura satu bulan.
PENGARUH DURASI PERENDAMAN RESIN AKRILIK HEAT CURED DALAM INFUSA DAUN KEMANGI (Ocimum basilicum Linn.) 50% TERHADAP PERUBAHAN DIMENSI
Authors: Diansari Viona , Rahmayani Liana , Asraf Nabila
Published: July 2019

Resin akrilik heat cured merupakan material yang sering digunakan dalam pembuatan basis gigi tiruan. Resin akrilik sering direndam dalam larutan pembersih gigi tiruan untuk menghilangkan mikroorganisme. Infusa daun kemangi 50% terbukti dapat menurunkan jumlah koloni Candida albicans sehingga dapat digunakan sebagai bahan alternatif pembersih gigi tiruan. Namun, resin akrilik heat cured bersifat menyerap cairan yang diduga dapat menyebabkan perubahan dimensi. Penelitian ini bertujuan untuk mengetahui pengaruh durasi perendaman resin akrilik heat cured dalam infusa daun kemangi 50% terhadap perubahan dimensi. Spesimen pada penelitian ini berjumlah 20 buah dan berbentuk silinder berukuran diameter 50 ± 1 mm d an tebal 1 ± 0.5 mm. Data yang diperoleh dianalisis menggunakan uji Friedman dan diuji lanjut dengan Wilcoxon. Hasil analisis menunjukkan terdapat perbedaan yang bermakna (p˂0.05) perubahan dimensi resin akrilik heat cured setelah perendaman dalam infusa daun kemangi 50% antara setiap kelompok durasi perendaman. Perbedaan yang tidak bermakna hanya terdapat antara kelompok setelah perendaman 5 dan 7 hari dengan nilai p0.05. Kesimpulan dari penelitian ini adalah adanya pengaruh durasi perendaman resin akrilik heat cured dalam infusa daun kemangi 50% terhadap perubahan dimensi.Kata kunci: Resin akrilik heat cured, kemangi
UJI AKTIVITAS ANTIFUNGAL EKSTRAK KULIT PISANG BARANGAN (Musa paradisiaca L.) TERHADAP Candida albicans
Authors: Andayani Ridha , . Afrina , Sari Kartika
Published: July 2019

Candida albicans (C. albicans) adalah jamur oportunistik yang pada keadaan tertentu dapat menjadi patogen di rongga mulut dan menyebakan kandidiasis oral. Penanganan kandidiasis oral umumnya menggunakan obat-obatan antifungal sintetik yang dapat menimbulkan efek samping. Kulit pisang barangan (Musa paradisiaca L.) adalah bagian yang sering dianggap tidak bermanfaat namun mengandung banyak komponen antifungal seperti alkaloid, saponin, steroid, triterpenoid, kuinon, polifenol dan flavonoid. Tujuan penelitian ini adalah untuk mengetahui aktivitas antifungal ekstrak kulit pisang barangan terhadap pertumbuhan C. albicans. Pada penelitian ini, kulit pisang barangan diekstraksi dengan metode maserasi menggunakan pelarut etanol 96%. Ekstrak kulit pisang barangan yang telah diuji fitokimia, diuji aktivitas antifungalnya menggunakan metode dilusi dengan Standard Plate Count (SPC). Hasil penelitian menunjukkan bahwa ekstrak kulit Musa paradisiaca L. berpengaruh terhadap pertumbuhan C. albicans dengan konsentrasi hambat minimum (KHM) sebesar 12,5% dan Konsentrasi Bunuh Minimum sebesar 100%.Kata kunci : Candida albicans, antifungal, kulit pisang
HUBUNGAN KEBIASAAN MEROKOK DENGAN DERAJAT KEASAMAN (pH) SALIVA PADA MAHASISWA JURUSAN TEKNIK SIPIL ANGKATAN 2010 FAKULTAS TEKNIK UNIVERSITAS ANDALAS
Authors: . Murniwati , Oenzil Fadil , Kamal Idson , . Minarni
Published: July 2019

Saliva merupakan cairan biologis pertama yang terpapar oleh asap rokok di rongga mulut. Asap rokok mengandung berbagai macam zat kimia yang dapat menyebabkan perubahan struktural dan fungsional pada saliva. Penelitian ini bertujuan untuk mengetahui hubungan antara kebiasaan merokok dengan derajat keasaman (pH) saliva. Desain penelitian ini adalah Cross Sectional Study dengan sampel 48 mahasiswa jurusan Teknik Sipil angkatan 2010 Fakultas Teknik Universitas Andalas. Data kebiasaan merokok didapat melalui kuesioner dan pH saliva diukur menggunakan dental saliva pH indikator. Analisa data menggunakan Chi-Square dengan α=0,05. Penelitian menunjukkan jenis rokok yang dikonsumsi adalah rokok putih (75%) dengan konsumsi per hari sebanyak 5-14 batang (54,2%). Responden telah mengkonsumsi rokok secara rutin selama lebih dari 4 tahun (37,2%). Sebagian besar responden memiliki pH saliva berkategori asam (52,1%). Tidak terdapat hubungan yang bermakna antara jenis rokok yang dikonsumsi dengan pH saliva ( p0,05 ). Terdapat hubungan yang bermakna antara tipe perokok dengan pH saliva ( p0,05 ) dan antara lama periode merokok dengan pH saliva (p0,05). Terdapat hubungan antara tipe perokok dan lama periode merokok dengan derajat keasaman (pH) saliva. Tidak terdapat hubungan antara jenis rokok dengan derajat keasaman (pH) saliva.Kata Kunci: Saliva, merokok, derajat keasaman
GAMBARAN MORFOLOGI Candida albicans SETELAH TERPAPAR EKSTRAK SERAI (Cymbopogon citratus) PADA BERBAGAI KONSENTRASI
Authors: . Afrina , Nasution Abdillah Imron , Sabila Cut Iryanti
Published: July 2019

Candida albicans merupakan jamur oportunisik dan termasuk salah satu flora normal dalam rongga mulut manusia yang dapat berubah menjadi patogen dan menyebabkan kandidiasis oral. Salah satu mekanisme adaptasi yang dilakukan C. albicans untuk mempertahankan hidupnya dari senyawa antifungal ekstrak serai (Cymbopogon citratus) adalah perubahan morfologi. Penelitian ini bertujuan untuk mengetahui gambaran morfologi C. albicans setelah terpapar serai pada berbagai konsentrasi yang dilakukan pada kelompok perlakuan yang terdiri dari konsentrasi 6,25%, 12,5%, 25%, 50%, 75%, dan 100%, kelompok kontrol negatif (akuades) dan tiga kelompok kontrol flukonazol berdasarkan dosis CLSI minimum, optimum, dan maksimum. C. albicans yang digunakan adalah ATCC 10231 yang telah disensitisasi dengan Cigarette Smoke Condensate (CSC). Gambaran morfologi C. albicans dilihat menggunakan mikroskop elektrik dengan pembesaran 1000x dan dibedakan menjadi bentuk blastospora, sel budding, pseudohifa, dan hifa. Gambaran morfologi C. albicans kemudian dianalisis secara deskriptif dan tabulasi. Hasil menunjukkan bahwa morfologi C. albicans setelah terpapar ekstrak serai pada semua konsentrasi didominasi oleh blastospora, dengan jumlah sel budding dan hifa paling sedikit terdapat di konsentrasi 25%.Kata Kunci: Candida albicans, kandidiasis oral, serai
PENDIDIKAN INKLUSIF BAGI SISWA BERKEBUTUHAN KHUSUS DI KALIMANTAN SELATAN
Authors: Amka
Published: July 2019

Indonesia education law mandates that schools are required to accept all students including students with special educational needs (SEN). This article explains the situation of inclusive education in schools in South Kalimantan Province. This study aims to find out and analyze the implementation of inclusive education policies in the view of principals, management of inclusive education by teachers, and public perceptions of inclusive education. The mixed-methods sequential explanatory design was used in this study by combining face-to-face surveys and interviews. Primary data was obtained from surveys conducted on 100 principals, 500 teachers, and 45 parents of students with special needs and interviews with a number of stakeholders. The results of the study show that local government policies have created the development of inclusive education in schools in South Kalimantan. Most principals support the implementation of inclusive classes, most teachers are willing to work with students with special needs, and parents of regular students accept the concept of inclusive. In practice, the implementation of inclusive education differs from one school to another depending on the perception of the principal and the willingness of teachers in terms of how to implement inclusive education.

Abstrak

Undang-undang menyatakan bahwa sekolah diharuskan untuk menerima semua siswa termasuk siswa berkebutuhan pendidikan khusus. Artikel ini menyoroti situasi pendidikan inklusif di sekolah-sekolah di Provinsi Kalimantan Selatan. Penelitian ini bertujuan untuk mengetahui dan selanjutnya menganalisa implementasi kebijakan pendidikan inklusif oleh Kepala Sekolah, manajemen pendidikan inklusif oleh guru, dan persepsi masyarakat tentang pendidikan inklusif. Pendekatan metode gabungan yang dinamakan dengan mixedmethods sequential explanatory design digunakan dalam penelitian ini dengan menggabungkan survei tatap muka dan wawancara. Data primer diperoleh dari survei yang dilakukan terhadap 100 kepala sekolah, 500 guru, dan 45 orang tua siswa berkebutuhan khusus serta wawancara dengan sejumlah pemangku kepentingan. Hasil penelitian menunjukkan bahwa kebijakan pemerintah daerah telah menghasilkan pengembangan pendidikan inklusif di sekolah-sekolah di Kalimantan Selatan. Sebagian besar kepala sekolah mendukung penerapan kelas inklusif, sebagian besar guru bersedia bekerja dengan siswa berkebutuhan khusus, dan orang tua siswa reguler menerima konsep inklusif. Dalam praktiknya, pelaksanaan pendidikan inklusif bervariasi dari satu sekolah ke sekolah lain tergantung pada persepsi kepala sekolah dan kemauan guru dalam hal bagaimana menerapkan pendidikan inklusif.
Analisis Kepuasan Konsumen pada Produk Waralaba Teh cap Poci di Kecamatan Denpasar Selatan Kota Denpasar
Authors: LALALA EDEN POSTER , SUAMBA I KETUT , YUDHARI I DEWA AYU SRI
Published: July 2019

Analysis of Customer Satisfaction on Franchise Products of Cap Poci Teain the Sub-District of Southern Denpasar of Denpasar CityCompetition is common and cannot be avoided, not least in the franchise tea of cappoci. Employers of franchise tea of cap poci must continue to innovate or to improvethe shortcomings so that consumers do not run into other products. Consumerbehavior may help explain how consumers obtain satisfaction. This study aimed todetermine the level of customer satisfaction on the franchise tea of cap poci and whatactions should be conducted based on matrix of Importance-Performance. Thelocation of research was in South Denpasar Sub-District as having the greatestpotential consumers. The total sample of 30 respondents and sampling wasconducted by accidental sampling. The data collection includes quantitative data andqualitative data derived from primary and secondary data. Data collection methodsused were interviews and literature studies. Methods of data analysis usingdescriptive analysis, Importance-Performance Analysis and Custumer satisficationIndex. Based on the research results, the value or rate of CSI calculation was69.34%. The CSI Value of the franchise iced tea products of tea cap poci meets thecriteria of satisfied. But still need increased performance. Based on the Importance-Performance Matrix, the product attributes that need to be improved are: hygiene,price, and taste attributes.
Perilaku Petani Anggota Subak Abian Ulun Desa dalam Budidaya Tanaman Kakao di Desa Bajera Utara, Kecamatan Selemadeg, Kabupaten Tabanan
Authors: SATRYASA KADEK DWI SUPUTRA CANDRA , PUTRA I GEDE SETIAWAN ADI , SARJANA I MADE
Published: July 2019

The Behavior of the Abian Ulun Desa Subak Members in the Cocoa Cultivation in the Village of Bajera Utara, Sub-District of Selemadeg, Tabanan.Cocoa has been the main commodity of plantation sub-sector, and it has the potential to be developed in support of improving the income of farmers in Indonesia. Selemadeg sub-district is the center of the cocoa farmers in Tabanan, which in 2014, its productivity reached 1,659 kg/ha/year, but the productivity was not optimal considering the productivity of cocoa in Indonesia reached 2000 kg/ha/year. The low productivity of cocoa in several centers in cocoa production was estimated to be caused by the behavior of farmers in the cultivation of cocoa plants. The purpose of research was to study the behavior of the farmer members of Subak Abian Ulun Desa in the cultivation of cocoa plants. This research was conducted in the Subak Abian Ulun Desa, Village of Bajera Utara, Sub-District of Selemadeg, Tabanan. Subak of Abian Ulun Desa has the population of 46 people. Determination of respondents by using census method. The results showed the knowledge and attitudes of farmers in the cultivation of cocoa is classified as excellent category with the score of knowledge of 85.95% and the score of attitude of 87.09%. The lowest percentage was for the application of the farmers in the cultivation of cocoa plants that regarded as excellent category with a score of 84.69%. Behavior of farmers of Subak Abian Ulun Desa in the cultivation of cocoa plants considered as excellent category by achieving a score of 85.91%. Based on the research results, the behavior of farmers in the cultivation of cocoa plants need to be given training by the government, especially on the application of cultivation of cocoa to produce maximum cocoa production.
Pola Kemitraan Usaha Tani Kelapa Sawit Kelompok Tani Telaga Biru dengan PT. Sawindo Kencana melalui Koperasi di Kabupaten Bangka Barat Provinsi Bangka Belitung
Authors: SAPUTRA I MADE GANNAL DWI , ANGGRENI I G A A LIES , DHARMA I PUTU
Published: July 2019

Farming Partnership of Palm Oil Farmers Group of Telaga Biru, with PT. Sawindo Kencana in West Bangka of Bangka Belitung.This research is to determine the mechanism of partnership between PT. Sawindo Kencana with farmer groups of Telaga Biru through cooperatives, farmers' rights and obligations and the company as well as the role of the position of the institutions concerned, the effectiveness of cooperation, and obstacles encountered in the course of the partnership. Location of research was selected by using purposive sampling. The type of data includes quantitative and qualitative data derived from primary and secondary data. Methods of data collection are interviews and documentation. Data analysis was conducted by using qualitative and quantitative descriptive method. The research results showed that the mechanism of implementation of the partnership based on a written agreement between farmers' groups of Telaga Biru and PT. Sawindo Kencana already realized well. The rights of farmers are to obtain the seeds, fertilizers, crop tool, material of pesticides, and marketing of the crop. The rights of the company is to obtain the harvest from farmers. Obligations of farmers namely provide crop yields of quality palm oil. The company's obligation namely to provide the needs of farmers such as fertilizer, harvesting equipment, materials of pesticides, and crop yields rights. The effectiveness of cooperation, namely the certainty of the role of the farmer groups of Telaga Biru in the company in partnership was not running optimally, but the certainty of the role of the company is already well underway. Obstacles in the farmer group of Telaga Biru namely that the farmers ‘background is different, lacking the discipline of saving money, and lack of participation in the care of smallholdings.
Efisiensi Penggunaan Faktor Produksi pada Usahatani Padi Sawah di Subak Sembung Desa Peguyangan Kecamatan Denpasar Utara (Penerapan Analisis Stokastik Frontier)
Authors: FITRI NI MADE RIANA , DARMAWAN DWI PUTRA , SUAMBA I KETUT
Published: July 2019

Efficient Use of Production Factors on Wetland Rice Farming in Subak Sembung, Peguyangan Village, District of North Denpasar(Application of Frontier Stochastic Analysis)

Subak Sembung is one of the subaks which get subsidy in the form of seed and fertilizer from the government. The existence of these subsidies allows wastefulness by farmers in the use of production factors. Based on this, a research was conducted that aimed to determine the efficiency of the use of production factors on rice farming in Subak Sembung. Random sampling technique was used to select the sample. The data collection in this study was conducted from October to November 2016. Researchers used the frontier production function and frontier cost functions estimated using the Maximum Likelihood Estimate (MLE) method. The results showed that rice farmers in Subak Sembung were efficient in using the production factor (cut-off value ? 0.7), but not in optimum efficiency condition at the frontier limit. Although farmers did not use production factors optimally, they had the opportunity to achieve optimal productive efficiency. Based on the result of significance with Fastilizer Stochastic analysis, it is known that only variable of land area that have a significant effect on paddy rice production.
Tingkat Pengetahuan Petani dalam Penggunaan Pupuk Organik dan Penerapannya pada Budidaya Tanaman Padi Sawah (Kasus di Subak Penarungan, Kecamatan Mengwi, Kabupaten Badung)
Authors: ARTAWAN I WAYAN BUDI , ASTITI NI WAYAN SRI , SUDARTA WAYAN
Published: July 2019

Farmers Knowledge Level in the Use of Organic Fertilizer and Its Applicationin Rice Cultivation (Case in Subak Penarungan, Sub-District of Mengwi,Badung Regency)

Public attention to the issue of agriculture and the environment in recent years haveincreased as a result of a big negative impact on the environment, compared with itspositive impact on increasing the productivity of agricultural crops. This encouragesseveral regions to hold organic farming. Organic farming is a natural farming whichin practice trying to avoid the use of chemicals and fertilizers that are poisoning theenvironment with the aim to obtain a healthy environmental condition.This studyaims to determine (1) the level of farmers' knowledge on organic fertilizer; and (3)the application of organic fertilizers by the farmers in the cultivation of lowland rice.The research was conducted at the Subak of Penarungan, Mengwi Sub-District ofBadung Regency. The choice of research location was conducted by purposivesampling. The population of the research was the active members of Subak ofPenarungan totaling of 167 people. The sample size was determined by using theformula of Slovin, so that the number of respondents was 63 people.This researchuse method analysaize descriptive qualitative. The results showed that farmers'knowledge about organic fertilizers can be categorized in the high category withachieving a score of 3.41. However, the application of organic fertilizer by thefarmers is classified in the medium category by achieving a score of 3.05. Based onthe results of this study can be suggested farmers as actors should be more activedoing weeding and want to optimize the use of organic fertilizer as recommended bythe extension. Because the use of sustainable organic fertilizer for the future will givea big influence in soil fertility, quality and not damage the environment.