bluuebunny/crossref_metadata_2025 huggingface dataset:
The field geology and petrography of the kofayi younger granite complex, central Nigeria
Authors: T Aga , A. I Haruna
Published: July 2019

The Kofayi Younger Granite Complex is one of the several anorogenic alkaline Younger Granite Complexes that is located approximately 45 kilometres north east of Jos, Nigeria. The complex is found to comprise of felsic rocks like; biotite-granites, biotite microgranites and granodiorites. They are also found to be associated with mafic rocks like diorites which, at some portions have formed hybrid rocks. Quartz- feldspar- granites are the porphyritic rocks that found in the ring complex. The complex intrude the basement rocks of central Nigeria. Structural trends on these rocks suggest that they were controlled by some deep seated structures of the basement. Mineral suite identified include; fayalite, pyroxene, amphibole, k-feldspar, biotite, quartz, iron- oxide and accessory minerals like zircon, apatite, and allanite. Generally, the petrography of these rock samples reveal the presence of a mafic magma which has two pulses (a mafic and felsic pulse) of injection.
Usage of time series models in assessing the value of demand in the insurance market
Authors: Saad Mohamed Fahmy Nermin , Alrajhi Sharifah
Published: July 2019

Insurance can affect savings and investment as insurance and reinsurance companies are among the most important financial institutions in the country's economy. The researcher will analyze, based on the partial auto correlation function and experimenting with several models of auto regression and moving averages, and testing the most appropriate model to describe the quarterly data on the number of polices.
Efektifitas Strategi Circle of Questions Dalam Memahami Bacaan Pelajaran Bahasa Indonesia Pada Siswa Kelas V MIN Kebonagung
Authors: Jumariyanto Jumariyanto
Published: July 2019

Penelitian ini merupakan penelitian eksperimen semu (quasi experiment). Populasi dan sampel dalam penelitian ini adalah siswa kelas V MIN Kebonagung yang berjumlah 59 siswa terdiri dari 2 kelas, yaitu kelas VA sebagai kelas kontrol dan kelas VB sebagai kelas eksperimen. Teknik pengambilan sampel yang digunakan dalam penelitian ini yaitu sampel jenuh. Pengumpulan data menggunakan tes, wawancara, dan dokumentasi. Instrumen tes menggunakan jenis tes pilihan ganda yang melalui analisis validitas dan reliabilitas. Teknik analisis data dengan cara uji prasyarat dan uji hipotesis. Uji prasyarat berupa uji normalitas dan homogenitas sedangkan uji hipotesis menggunakan analisis statistika parametrik yaitu uji t. Hasil penelitian menunjukkan bahwa: 1) terdapat perbedaan kemampuan pemahaman membaca antara siswa yang mendapat pembelajaran menggunakan strategi Circle of Questions dengan siswa yang mendapat pembelajaran menggunakan strategi Know-Want to learn-Learned (KWL). Hal ini dibuktikan dari analisis uji t data post test diperoleh nilai Asymp.Sig.(2-tailed) 0,042 < 0,05 sehingga Ha diterima dan H0 ditolak. 2) Hasil uji efektivitas menggunakan uji Gain Score diperoleh Asymp.Sig.(2-tailed) = 0,044 < 0,05, sehingga Ha diterima dan H0 ditolak. Artinya strategi Circle of Questions teruji efektif dalam pembelajaran pemahaman membaca.
Pengidentifikasian Huruf Hijaiyah yang Bentuknya Sama Sebagai Strategi Peningkatan Motivasi dan Keberhasilan Membaca Iqro’ Pada Siswa SDLB Tunagrahita Ringan (C)
Authors: Rohmatin Fitriyah
Published: July 2019

Penelitian  ini  bertujuan  untuk  mengetahui  efektivitas  pengidentifikasian  huruf hijaiyah yang bentuknya sama dengan menggunakan kartu bertulisan huruf hijaiyah dan papan panel sebagai strategi peningkatan motivasi dan keberhasilan membaca Iqro’  bagi  siswa  SDLB  tunagrahita  ringan  (C)  Bhakti  Kencana  Berbah,  Sleman, Yogyakarta.Penelitian ini merupakan kolaboratif. Setting penelitian yang dipilih adalah di dalam di luar kelas pada jam pelajaran Pendidikan Agama Islam kelas III yang terdiri dari 4 siswa.Langkah-langkah  penelitian  ini  mencoba  menggunakan  model  desain  yang dikembangkan oleh Kemmis & MC. Taggert yang terdiri empat tahap yang meliputi perencanaan,  tindakan,  pengamatan,  dan  refleksi.  Keempat  tahapan  ini  sebagai untaian dalam satu siklus. Adapun alat monitoring menggunakan observasi kelas, catatan lapangan, untuk evaluasi dapat diketahui dari proses dan hasil pembelajaran. Analisis data yang digunakan adalah analisis deskriptif non statistik. Adapun penelitian dibagi menjadi dua siklus. Pada siklus I pembelajaran huruf hijaiyah belum memperoleh hasil yang maksimal, sebagai bukti siswa-siswa kurang semangat, masih keliru terbalik dalam melafadzkan beberapa huruf hijaiyah, hal ini karena ada beberapa hal yaitu: 1. Pada siklus I dalam mengenalkan huruf hijaiyah disertai huruf latinnya, dalam pengenalan huruf hijaiyah diurutkan, sehingga apabila diacak siswa sering kebalik. 2. Papan panel yang digunakan hanya satu dipasang dipapan tulis, sehingga anak sering berebutan untuk maju, hal ini mengganggu proses pembelajaran.Berdasarkan hasil evaluasi siklus I, peneliti mengadakan perbaikan pada siklus ke II antara lain: 1). Dalam pengenalan huruf hijaiyah tanpa disertai huruf latinnya, dalam membaca huruf hijaiyah tidak diurutkan/ diacak, tetapi membacanya sesuai kelompok huruf yang bentuknya sama dan diulang-ulang sampai siswa paham. 2). Saat membaca direkam, setelah selesai bisa mendengarkan suaranya sendiri, sehingga siswa mengetahui pelafadzan yang belum benar. 3). Alat Bantu yang digunakan disiapkan sesuai jumlah siswa, sehingga siswa tidak berebutan, bagi siswa yang belum mendapat giliran bisa mencoba sendiri di mejanya masingmasing.  Untuk  melatih  motorik,  siswa  yang  sudah  mendapat  giliran,  mendapat tugas untuk menyalin materi yang telah dipelajari. Sehingga dalam siklus ke II ini pembelajarannya lebih kondusif, siswa lebih senang, perhatian, semangat, sebagai bukti siswa sudah mampu membaca huruf hijaiyah dan mampu menyelesaikan Iqro’ jilid I dengan benar dan lancar dan mulai Iqro’ II. Berdasarkan hasil yang diperoleh bahwa pengidentifikasian huruf hijaiyah yang bentuknya sama dengan alat Bantu karton yang bertulisan huruf hijaiyah dan papan panel, walaupun alat tersebut sederhana, dapat meningkatkan keberhasilan membaca huruf hijaiyah/ Iqro’ bagi siswa SDLB III SLB C Bhakti Kencana Berbah Sleman, Yogyakarta.
Optimalisasi Pendekatan Saintifik Dengan Model Discovery-Inquiry Untuk Meningkatkan Kreativitas di Madrasah Ibtidaiyah
Authors: Pratiwi Widya
Published: July 2019

Pendidikan dalam jangka panjang adalah faktor tunggal paling menentukan melebarnya jurang kesenjangan, oleh karena itu investasi dalam bidang pendidikan adalah cara logis untuk menghilangkan kesenjangan tersebut. Saat ini pengembangan Kurikulum 2013 sudah memasuki tahap implementasi. Pendekatan Saintifik adalah salah satu cara dalam mencapai tujuan kurikulum 2013. Pembelajaran merupakan hal yang sangat penting untuk mempercepat pemahaman dan keterampilan peserta didik dalam mengimplementasikan kurikulum tersebut. Tetapi masih banyak ditemukan proses pembelajaran belum menjadi sarana untuk memberdayakan keterampilan berpikir kreatif peserta didik karena masih bersifat teacher centered, sehingga guru mendominasi di kelas. Rendahnya berpikir kreatif peserta didik ditunjukkan dengan jawaban yang diberikan terpaku pada jawaban-jawaban yang ada di buku sehingga peserta didik hanya menghafalkan jawaban di buku dan kurang memahami makna jawaban yang di sebutkan. Oleh karena itu diperlukan model pembelajaran yang tepat. Sejalan dengan itu, model pembelajaran discovery-inquiry merupakan model yang cocok diterapkan dalam pembelajaran di Madrasah Ibtidaiyah.
Implementasi Pendidikan Karakter Dalam Pembelajaran Aqidah Akhlak (Studi Multi Kasus di MIN Sekuduk dan MIN Pemangkat Kabupaten Sambas)
Authors: Putra Purniadi
Published: July 2019

Latar belakang penelitian ini adalah kegelisahan peneliti terhadap karakter bangsa yang sedang mengalami dekadensi moral, di antaranya adalah meningkatnya pergaulan bebas, penyalahgunaan obat-obatan, dan lain sebagainya. Dalam hal ini sekolah khususnya dalam pembelajaran Aqidah Akhlak memiliki peran besar dalampenyadaran nilai-nilai agama Islam kepada peserta didik. Penelitian ini menggunakan metode kualitatif. Lokasi penelitian di MIN Sekuduk dan MIN Pemangkat Kabuaten Sambas. Pengumpulan data dilakukan dengan observasi, wawancara, dan dokumentasi. Analisis data dilakukan dengan analisis lintas kasus. Hasil penelitian menunjukkan bahwa: (1) perencanaan pembelajaran guru Aqidah Akhlak sebagai upaya pembentukan karakter adalah dengan mendesain perencanaan pembelajaran dengan melibatkan media, (2) penerapan pembelajaran guru Aqidah Akhlak dalam upaya pembentukan karakter siswa yang dilakukan telah mengacu pada tata tertib maupun aturan yang telah direncanakan dan ditetapkan dalam setiap kegiatan atau proses pembelajaran dalam lembaga pendidikan dasar/MI, (3) evaluasi pembelajaran guru Aqidah Akhlak biasanya berupa ujian tugas dari guru, ulangan harian, nilai UTS dan ulangan UAS siawa. Penyampaian pembelajaran Aqidah akhlak dalam pembentukan karakter siswa yang diterapkan oleh guru mata pelajaran dari masing lokasi penelitian tersebut membuahkan hasil yang sangat memuaskan.Kata kunci: Pendidikan Karakter, Pembelajaran Aqidah Akhlak di MI
Kontribusi Pengembangan Media Komik IPA Bermuatan Karakter Pada Materi Sumber Daya Alam untuk Siswa MI/SD
Authors: Azizi Mukhlas , Prasetyo Sigit
Published: July 2019

Penelitian ini bertujuan untuk mengembangkan media komik IPA bermuatan pendidikan karakter pada materi SDA kelas III MI/SD, mengetahui kelayakan media komik sebagai alternatif dalam pembelajaran IPA bermuatan pendidikan karakter materi SDA kelas III MI/SD, dan mengetahui respon siswa terhadap media komik IPA bermuatan pendidikan karakter pada materi SDA. Penelitian pengembangan dilakukan melalui prosedur pengembangan yang terdiri dari enam langkah, yaitu identifikasi masalah, pengumpulan informasi, desain produk, validasi desain, revisi produk, uji coba produk. Instrumen penelitian yang digunakan untuk melihat kelayakan media komik IPA ini dengan menggunakan lembar angket. Media komik dinilai dan diberimasukan oleh ahli materi, ahli media, ahli bahasa, dua peer reviewer, dua guru kelas III MI, dan diberi respon 10 siswa. Hasil penelitian menunjukkan bahwa telah berhasil dikembangkan komik IPA bermuatan pendidikan karakter dengan tahap: identifikasi masalah, pengumpulan informasi, desain produk, validasi desain, revisi produk, uji coba produk. Kelayakan dibuktikan dengan kualitas media Komik IPA berdasarkan penilaian para ahli, peer reviewer, dan guru diperoleh jumlah nilai 279,5 dengan kategori Sangat Baik (SB). Respon siswa kelas III MI diperoleh skor ratarata 17,5 serta persentase keidealannya 96,6% mendapat respon positif.Kata Kunci: Media Komik IPA, Pendidikan Karakter, Sumber Daya Alam
Berpikir Profetik dalam Pembelajaran Matematika SD/MI
Authors: Muhammad Azamul Fadhly Noor
Published: July 2019

Dalam dunia pendidikan para siswa yang memiliki minat belajar yang tinggi dapat mengalami penurunan minat belajarnya. Salah satu contoh dalam pembelajaran matematika. Jika mereka diajarkan oleh guru dengan cara yang membosankan dan monoton, maka siswa akan cepat bosan dalam menerima pembelajaran tersebutdi kelas. Sebaiknya, siswa yang mempunyai motivasi rendah, dapat mengalami peningkatan minat belajar jika dibimbing oleh seorang guru yang mengetahui bagaimana cara berkomunikasi dan berpikir secara baik kepada siswanya. Berpikir profetik adalah berpikir sesuai dengan yang Nabi ajarkan atau lakukan. Pendidikan dengan perspektif profetik berarti mengkaji pendidikan sebagai program besar bangsa yang memiliki kekuatan prediktif ke masa depan yang lebih gemilang yang dilakukan oleh seseorang yang disebut nabi, yaitu orang yang berbicara awal atau pioner yang memproklamasikan diri dan berbicara masa depan. Dalam mengajarkanpelajaran matematika yang merupakan pelajaran yang sangat dibutuhkan oleh siswa sebagai bekal dia menjalani kehidupan di masyarakat kelak. Belum lagi paradaban bangsa kita saat ini yang sangat terpuruk, sehingga kita seolah-olah telah hilang jati diri sebagai bangsa yang bermartabat, sehingga dibutuhkan kembali tingkat berpikir sesuai yang diajarkan oleh Nabi Muhammad SAW yang sering kita sebut berpikir Profetik, yang sesungguhnya itu sudah diajarkan oleh orang tua masing-masing sebelum masuk SD.Kata Kunci: Berpikir Profetik, Pembelajaran, Matematika SD
Kurikulum dan Dinamika Perubahannya di Pondok Pesantren Universitas Islam Indonesia Yogyakarta.
Authors: Shofa Rizka Amalia
Published: July 2019

This paper is intended to express the concept and dynamics of curriculum change of Pondok Pesantren Universitas Islam Indonesia. The importance of the problem discussed is related to curriculum that is used by Pondok Pesantren as one of the foundations of the development of Islamic educational institutions that would potentially affect the development of Islamic education in Indonesia in general. The concept of curriculum which is applied does not follow the national curriculum that is used at school or college. The result of the research showed that there is a change in the destination and setting of the curriculum of Pondok Pesantren Universitas Islam Indonesia that referred to Universitas Islam Indonesia’s aim to be World Class University. The change affected the content of the curriculum, teaching materials, and the learning methods. A change impact on the activity of students who are not only prepared to be a mujtahid, but more geared to hone the ability of thinking and researching.
Kepemimpinan Siswi dalam Penerapan Nilai-Nilai Religiusitas di Madrasah Mu'allimaat Muhammadiyah Yogyakarta
Authors: Khasanah Sitin Nurul , Arifin Zainal
Published: July 2019

Penelitian ini bertujuan untuk mendeskripsikan tipe kepemimpinan organisasi otonom Muhammadiyah dalam penerapan nilai-nilai religiusitas di Madrasah Mu’alimat Muhammadiyah Yogyakarta. Penelitian ini merupakan penelitian kualitatif dengan pengambilan data secara observasi, wawancara, dan dokumentasi. Analisis data dilakukan dengan reduksi data, penyajian data dan diverifikasi setelah itu ditarik kesimpulan. Hasil penelitian menunjukkan: (1) tipe kepemimpinan siswi dalam organisasi otonom Muhammadiyah adalah maskulin dan transformasional, (2) usaha dalam penerapan nilai-nilai religiusitas dalam organisasi adalah melalui lima dimensi berikut, yaitu religious belief, religious practice, religious feeling, religious knowledge, dan religious effect, (3) hasil tipe kepemimpinan terhadap nilai-nilai religiusitas dalam organisasi terwujud melalui kedisiplinan mematuhi kode etik dan disiplin ibadah (sholat tepat waktu); keteladanan berdo’a sebelum dan sesudah melakukan suatu kegiatan organisasi; adanya rasa empati terhadap sesama dengan gerakan infak dalam organisasi; semakin termotivasi dan semangat mewujudkan visi dan misi organisasi; dapat mengaktualisasikan diri sebagai panitia kegiatan Taruna Melati (TM), kajian Obrolan Jum’at Kekinian (OJK), dan Kajian Tri Mingguan (Karim) dalam organisasi IPM, sedangkan pada organisasi HW, anggota “Aspel” (Asisten Pelatih) HW menjadi lebih berani mengajar/melatih ilmu kepanduan pada anggota “Pasti” (pasukan inti HW MTs) dan pada tingkat Athfal yaitu anak-anak SD Muhammadiyah Kauman
Manajemen Pembelajaran Bahasa Arab Berbasis TIK di Madrasah Aliyah Daarul Uluum Majalengka
Authors: Badrudin Badrudin
Published: July 2019

This study aimed to analyze the management of ICT-based Arabic learning. This study was designed to find the management of ICT-based Arabic learning in MA Daarul Uluum Majalengka. This study proposed that the integration of various fields of studies with ICT, including Arabic language learning, is undeniably vital to be enhanced in this digital era. However, the constraints experienced by some institutions, especially the educators, have not had a clear format of the use of ICT in the integration effort of the both disciplines. This study applied a qualitative research approach. The research method was descriptive method. The data were collected by conducting observation, interview, and documentation. The data were analyzed using the techniques qualitative analysis. The results showed that the design of ICT-based Arabic learning model can be developed at MA Daarul Uluum Majalengka a communicative computer-based Arabic learning model. The materials and other learning tools are designed using a computer program. Through this kind of learning models, a teacher served as learning motivator and facilitator elaborating the materials that need clarification for the learners.
Peran Manajer Kepala MIN Jejeran Bantul dalam Implementasi Manajemen Berbasis Madrasah
Authors: Mufidah Nurul
Published: July 2019

This study focused on examining the theory of optimalization of class intervention management toward students’ bad behavior in Islamic primary school. The method used in this study was literature study based on documents. The results showed that the optimalization of classroom management involved the whole components including school and parents as moral community whose responsibility and role were preventing and overcoming students’ bad behavior by being a good role model. Optimizing the collaboration among parents enables integrated communication with education at school to avoid the continuity of behavior. Increasing positive activities aimed to overcome disruption in the classroom can be done through behaviorism approach and integrated learning. Teachers’ readiness in mastering intervention management is crucial as it is necessary for dealing with students’ behavior in a precise way.
Faith and Social Character Education of Sociological Education Perspective: an Implementation of Classroom Management in Islamic School
Authors: Subiyantoro Subiyantoro
Published: July 2019

This model of education is developed from Carl Rogers’s indirect instruction in the process of learning Core Competence I (faith dimension) and Core Competence II (social dimension), channeled through school culture in sociology dimension using Looking Glass Self theory from Cooley and Three Self Elements theory from Freud. Research and Development method is employed to reveal: characteristic of faith and social dimensions in the students of State Islamic School (MAN) Wates 1in indirect instruction; which effective education model should be applied in the students’ faith and social character education. The measurement before and after treatment is conducted using observation and in-depth interview methods towards teachers and students with students’ faith and social characteristic measurement scale instrument. The analysis uses data reduction, data display, and verification. The result shows thatin a learning faith and social character educationportrait, teachers find it difficult to relate material and skill being taught with faith and social character education being ddeveloped. The in-class education model proposed includes inculcating, facilitating, modeling, and skill developing. The increase of character motivates teachers to improve their competence in buiding faith and social dimensions of the students.
Homeland as Sound and Sound as Homeland: Cultural and Personal Soundscapes in Christos Christovasilis's Short Stories. By Panayotis Panopoulos. Translated by Vasiliki Chatzopoulou.
Authors: Panopoulos Panayotis , Chatzopoulou Vasiliki
Published: July 2019

This essay is an original contribution to the ethnomusicology of literature in Greece. Concepts and perspectives from the anthropology of music, soundscape studies, and the ethnography of sound and the senses are used to approach and analyze the sound world of Christos Christovasilis’s literary work. Christovasilis (1860-1937) is an important figure in the so-called “ethographic” literary movement in Greece of the late 19th and early 20th centuries; his work is of exceptional interest concerning the presentation of sound and hearing in Greek mountain communities. Panayotis Panopoulos’s sharp ear identifies the strong presence of sound in the short stories of Christovasilis, which he interprets in terms of the ethnography of the senses and the role of sound and hearing in the cultural construction of community and personhood among Greek pastoralists. In this text Panopoulos places special emphasis on the sound of animal bells in everyday and ritual contexts, developing further his earlier ethnographic work on animal bells (see “Animal Bells as Symbols: Sound and Hearing in a Greek Island Village,”Journal of the Royal Anthropological Institute 9 (2003): 639-56; and Skyros Carnival, photographs by Dick Blau, essay by Agapi Amanatidis and Panayotis Panopoulos, CD + DVD by Steven Feld, Santa Fe, NM: VOXLOX, 2011). More importantly, Panopoulos challenges received ideas in which text is understood as a predominantly visual, linguistic construct and he eloquently depicts how experiences of sonic imagination are culturally reproduced in text. In this way, he makes an important contribution to the ethnomusicological reading of literary text by showing how text is mediated through acoustic environment and how sound produces, surrounds, and immerses itself in text.

Citation: Panopoulos, Panayotis. Homeland as Sound and Sound as Homeland: Cultural and Personal Soundscapes in Christos Christovasilis’s Short Stories. Translated by VasilikiChatzopoulou. Ethnomusicology Translations, no. 1. Bloomington, IN: Society for Ethnomusicology, 2015.

Originally published in Greek in Dokimes: Journal of Social Studies 13-14 (2005): 277-307.
Writing against Europe: On the Necessary Decline of Ethnomusicology. By Martin Greve. Translated by Férdia J. Stone-Davis.
Authors: Greve Martin , Stone-Davis Férdia J.
Published: July 2019

In this appraisal of then-current German-speaking ethnomusicology, Martin Greve calls for much more critical acknowledgment and consideration of recent key debates in cultural studies and cultural anthropology. The essay and its provocative title, certainly written in a constructive spirit, hit a trouble spot, fueling the fear of losing ethnomusicology’s disciplinary raison d’être. A short but telling discussion among German-speaking ethnomusicologists ensued.

Citation: Greve, Martin. Writing against Europe:On the Necessary Decline of Ethnomusicology. Translated by Férdia J. Stone-Davis. Ethnomusicology Translations, no. 3. Bloomington, IN: Society for Ethnomusicology, 2016.

Originally published in German as “‘Writing against Europe’: Vom notwendigen Verschwinden der Musikethnologie,” Musikforschung 55 (2002): 239-250.
THE INFLUENCE OF A CRITICAL ANGLE ON AN ORIENTATION OF RADIATION OF A SHEAR WAVE THE ANGLE BEAM PROBE
Authors: Danilov V. N.
Published: July 2019

In a far field it is received asymptotic expression of displacement of the shear waves transmitted in the elastic environment by the angle beam probe in view of features of radiation of such waves under a angle of probe, coming nearer to the third critical. At sufficient remoteness from a critical corner this expression passes in received earlier in geometroacustical approximation. The estimations carried out for steel have shown, that for converters with nominal angles of probe 37 – 40 influence of this critical angle causes increase of an angle of registration of a maximum of the signal, observed earlier experimentally. This feature is influenced as distance up to points of registration of a shear wave, and with working frequency of the angle beam probe and its size piezoplate (width of the directivity characteristic).
METROLOGICAL SUPPORT OF SELECTIVE MULTI-PARAMETRIC CONTROL
Authors: Danilevich S. B. , Golobokov M. V. , Tretyak V. V.
Published: July 2019

The development of methods for selective measurement control of commercially available products, the quality of which is characterized by a number of parameters, is considered. At the same time, it is necessary to establish reasonable requirements for the accuracy of measurement of parameters, as well as the sample size of controlled products. If the controlled parameters are correlated, the problem of optimizing their number arises.Using the Monte Carlo method (simulation modeling), we investigated the effect of measurement uncertainty and the sample size of controlled products on control reliability indicators. The average risks of the customer and the manufacturer are calculated while monitoring samples of products of various volumes. The calculations were made under the assumption that the quality of each product is characterized by 30 uncorrelated parameters. It is shown that in the considered case there is an almost linear dependence of the mentioned risks on the volume of the controlled sample of products.
EVALUATION OF DIAGNOSTIC PARAMETERS OF THE ELECTRO-PARAMETRIC METHOD FOR CONTROLLING THE ALIGNMENT OF SHAFTS OF CENTRIFUGAL PUMPING UNITS
Authors: Bykov I. Yu. , Yagubov Z. H. , Shichev P. S.
Published: July 2019

The article contains the results of a research by definition diagnostic parameters necessary for the development of an electroparametric method for monitoring of the shafts misalignment in centrifugal pumping units. An experimental research was performed using a overhung centrifugal pump unit K 20/30 and measuring equipment. In its turn is determined function of the dependence the relative amplitude of the informative harmonic in the spectrum of the current of the electric motor phase from the parameter of the overall vibration level of a centrifugal pump unit. This function makes it possible to set the values of the diagnostic parameter for the boundaries of the technical state zones of the pump unit, which correspond to the values of the parameter of the general vibration level, in the event of the shafts misalignment. In mathematical modeling of a centrifugal pumping unit, made imitation of mechanical defect on the shaft when changing the value of the relative pump head and operating parameters for multiple units. As a result of modeling were obtained regression equations of the dependencies of the diagnostic parameter on the parameter imitation of defect at different values pump head and for multiple units.
THE RESULTS OF EXPERIMENTAL STUDIES OF THE PROCESS OF REDISTRIBUTION OF SELF-OSCILLATION ENERGY UNDER THE INFLUENCE OF ATTENUATES
Authors: Konovalov A. M. , Kugushev V. I. , Yakovlev A. Yu.
Published: July 2019

Below given are the results of experimental studies of the process of damping of self-oscillation of the beam which is a long plate with rectangular cross-section. The studies were aimed at demonstration of the process (accompanying the damping) of energy redistribution between the modes and harmonics of self-oscillations under the conditions when this energy is essentially bounded. The artificial damper was used which was a small-size slightly pressed plate. The same local damping effect is created by cracks in the parts when there are oscillations, plastic deformation at the apex of crack. Specially developed transducers operating in split mode as part of multifunction acoustic impedance fault detector were used as measuring equipment. The receiver-transducer was attached at the end of the beam, the generator-transducer was attached at the centre of the beam so as to induce oscillation train consisting of five dominant flexural modes of self-oscillations of the beam. Limitation of energy inducing self-oscillations was determined by the rigidity of spring-plates of generator-transducer. The rigidity of the plates was chosen so as oscillation energy was sufficient only for extraction of the given train amplitudes as being dominant, whereas the rest modes of self-oscillations were either not induced at all or were induced with small amplitude. It is demonstrated that redistribution process, when inducing energy is limited, is highly sensitive to attenuants, which allows to use it as a crack indicator during integral nondestructive testing of parts and entire assemblies. For this reason it is concluded that the process of energy redistribution between different harmonics and modes of self-oscillations under the influence of damping factors is advanced for computer-aided nondestructive testing.
DEVELOPMENT OF NEW METHODS FOR DETECTION OF LEAKS OF HYDROCARBON GAS
Authors: Eminov R. A. , Mursalov N. Z.
Published: July 2019

The paper is devoted to development of new methods for detection of leaks of hydrocarbon gas. It is determined that the wellknown fact on inverse interrelation of concentration of oxygen and such gases as N2 and CH4 can be used for remote determination of leaks of hydrocarbon gases. The gradient method for detection of leaks of natural gas composed of determination of two directions with minimum value of gradient of concentration of O2 in two fixed points and characterization of the point of crossing of them as a site of leak is suggested. The method of circles for detection of natural gases leaks site providing for determination of three points in supposed zone of leak and drawing up the circles around these points with growing radius with defined regularity is suggested. The point of crossing of all circles in some cycle of radiuses increase is presented as the gas leaks site. The carried out experimental researches held in various amounts of wind speed shown that when the wind speed surpass the fixed value location of gas leak site would be impossible due to effect of wind on spatial distribution and concentration of natural gas. Thus the proposed method is not designated for cases when a heavy wind occurs.
Comparative study on amylosucrases derived from Deinococcus species and catalytic characterization and use of amylosucrase derived from Deinococcus wulumuqiensis
Authors: Kim Ki-Tae , Rha Chan-Su , Jung Young Sung , Kim Ye-Jin , Jung Dong-Hyun , Seo Dong-Ho , Park Cheon-Seok
Published: July 2019

Amylosucrase (ASase; EC 2.4.1.4), a versatile enzyme, exhibits three characteristic activities: hydrolysis, isomerization, and transglycosylation. In this study, a novel ASase derived from Deinococcus wulumuquiensis (DWAS) was identified and expressed in Escherichia coli. The optimal reaction temperature and pH for the sucrose hydrolysis activity of DWAS were determined to be 45 °C and 9.0, respectively. DWAS displays relatively high thermostability compared with other ASases, as demonstrated by half-life of 96.7 and 4.7 min at 50 °C and 55 °C, respectively. DWAS fused with 6×His was successfully purified to apparent homogeneity with a molecular mass of approximately 72 kDa by Ni-NTA affinity chromatography and confirmed by SDS-PAGE. DWAS transglycosylation activity can be used to modify isovitexin, a representative flavone C-glucoside contained in buckwheat sprouts to increase its limited bioavailability, which is due to its low absorption rate and unstable structure in the human body. Using isovitexin as a substrate, the major transglycosylation product of DWAS was found to be isovitexin monoglucoside. The comparison of transglycosylation reaction products of DWAS with those of other ASases derived from Deinococcus species revealed that the low sequence homology of loop 8 in ASases may affect the acceptor specificity of ASases and result in a distinctive acceptor specificity of DWAS.
On a class of nonlocal nonlinear Schrödinger equations with potential well
Authors: Wu Tsung-fang
Published: July 2019

In this paper we investigate the existence, multiplicity and asymptotic behavior of positive solution for the nonlocal nonlinear Schrödinger equations. We exploiting the relationship between the Nehari manifold and eigenvalue problems to discuss how the Nehari manifold changes as parameters μ, λ changes and show how existence, multiplicity and asymptotic results for positive solutions of the equation are linked to properties of the manifold.
Numerical analysis of temperature distribution in a brush seal with thermo-regulating bimetal elements
Authors: Stanclik Michał
Published: July 2019

The paper presents the continuation of work devoted to the analysis of a brush seal with thermo-regulating bimetal elements aimed at thermal protection of a brush seal. This paper presents a method of determining the operating temperature of such a seal using the finite element method. It has been shown that building the seal according to the idea allows a significant reduction of its working temperature.
Judicial Examination of Complainants in Sexual Offense Cases
Authors: Menashe Doron , Gruner Eyal
Published: July 2019

This article concerns the ideal legal arrangement with respect to cross-examining complainants in sexual assault cases regarding their sexual history. The article examines the question of under what circumstances the complainant’s sexual history could be seen as as logically relevant. It also deals with finding the balance between, on the one hand, the interests of protecting the defendant and pursuing truth, which require cross-examination regarding the complainant’s sexual history, and on the other hand, the interest of protecting the complainant’s dignity and welfare.
The left Riemann-Liouville fractional Hermite-Hadamard type inequalities for convex functions
Authors: Kunt Mehmet , Karapinar Dünya , Turhan Sercan , İşcan İmdat
Published: July 2019

In this paper, with a new approach, a new fractional Hermite-Hadamard type inequalities for convex functions is obtained by using only the left Riemann-Liouville fractional integral. Also, to have new fractional trapezoid and midpoint type inequalities for the differentiable convex functions, two new equalities are proved. Our results generalize earlier studies. We expect that this study will be lead to the new fractional integration studies for Hermite-Hadamard type inequalities.
On the finite embeddability property for quantum B-algebras
Authors: Xia Changchun
Published: July 2019

After the establishment of the finite embeddability property for integral and commutative residuated ordered monoids by Blok and Van Alten in 2002, the finite embeddability property for some other types of residuated ordered algebraic structures have been extensively studied. The main purpose of this paper is to construct a finite quantale X̂F
from a finite partial subalgebra F of an increasing quantum B-algebra X so that F can be embedded into X̂F
, that is, the class of increasing quantum B-algebras has the finite embeddability property.
On a Choquet-Stieltjes type integral on intervals
Authors: Gal Sorin G.
Published: July 2019

In this paper we introduce a new concept of Choquet-Stieltjes integral of f with respect to g on intervals, as a limit of Choquet integrals with respect to a capacity μ. For g(t) = t, one reduces to the usual Choquet integral and unlike the old known concept of Choquet-Stieltjes integral, for μ the Lebesgue measure, one reduces to the usual Riemann-Stieltjes integral. In the case of distorted Lebesgue measures, several properties of this new integral are obtained. As an application, the concept of Choquet line integral of second kind is introduced and some of its properties are obtained.
Unified solution of Fekete-Szegö problem for subclasses of starlike mappings in several complex variables
Authors: Tu Zhenhan , Xiong Liangpeng
Published: July 2019

Let

S

ψ
∗

$\begin{array}{}
\mathcal {S}^*_\psi
\end{array}$

be a subclass of starlike functions in the unit disk 𝕌, where ψ is a convex function such that ψ(0) = 1, ψ′(0) > 0, ℜ(ψ(ξ)) > 0 and ψ(𝕌) is symmetric with respect to the real axis. We obtain the sharp solution of Fekete-Szegö problem for the family

S

ψ
∗

$\begin{array}{}
\mathcal {S}^*_\psi
\end{array}$

, and then extend the result to the case of corresponding subclass defined on the bounded starlike circular domain Ω in several complex variables, which give an unified answer of Fekete-Szegö problem for the kinds of subclasses of starlike mappings defined on Ω. At last, we propose two conjectures related the same problems on the unit ball in a complex Banach space and on the unit polydisk in ℂ
n
.
Some refinements of young type inequality for positive linear map
Authors: Yang Chaojun , Gao Yaxin , Lu Fangyan
Published: July 2019

We obtain a refined Young type inequality in this paper. The conclusion is presented as follows: Let A, B ∈ B(𝓗) be two positive operators and p ∈ [0, 1], then

A

♯
p

B
+

G
∗

(
A

♯
p

B
)
G
≤
A

∇
p

B
−
2
r
(
A
∇
B
−
A
♯
B
)
,

$$\begin{array}{}
\displaystyle
A\sharp_p B+G^*(A\sharp_p B)G\le A\nabla_p B-2r(A\nabla B-A\sharp B),
\end{array}$$

where r = min{p, 1 – p}, G =

L
(
2
p
)

2

$\begin{array}{}
\displaystyle
\frac{\sqrt{L(2p)}}{2}
\end{array}$

A
–1
S(A|B), L(t) is periodic with period one and L(t) =

t
2

2

1
−
t

t

2
t

$\begin{array}{}
\displaystyle
\frac{t^2}{2}\left( \frac{1-t}{t} \right)^{2t}
\end{array}$

for t ∈ [0, 1]. Moreover, we give the s-th powering of two inequalities related to the above one with s > 0 which refines Lin’s work. In the mean time, we present an inequality involving Hilbert-Schmidt norm.
Dielectric cross-shaped-resonator-based metasurface for vortex beam generation at mid-IR and THz wavelengths
Authors: Dharmavarapu Raghu , Izumi Ken-ichi , Katayama Ikufumi , Ng Soon Hock , Vongsvivut Jitraporn , Tobin Mark J. , Kuchmizhak Aleksandr , Nishijima Yoshiaki , Bhattacharya Shanti , Juodkazis Saulius
Published: July 2019

Metasurfaces are engineered thin surfaces comprising two-dimensional (2D) arrays of sub-wavelength-spaced and sub-wavelength-sized resonators. Metasurfaces can locally manipulate the amplitude, phase, and polarization of light with high spatial resolution. In this paper, we report numerical and experimental results of a vortex-beam-generating metasurface fabricated specifically for infrared (IR) and terahertz (THz) wavelengths. The designed metasurface consists of a 2D array of dielectric cross-shaped resonators with spatially varying length, thereby providing the desired spatially varying phase shift to the incident light. The metasurface was found to be insensitive to the polarization of the incident light. The dimensions of the cross-resonators were calculated using rigorous finite-difference time-domain analysis. The spectral scalability via physical scaling of the meta-resonators is demonstrated using two vortex-generating optical elements operating at 8.8 μm (IR) and 0.78 THz. The vortex beam generated in the mid-IR spectral range was imaged using a Fourier transform IR (FTIR) imaging miscroscope equipped with a focal plane array detector. This design could be used for efficient wavefront shaping and various optical imaging applications in the mid-IR spectral range, where polarization insensitivity is desired.
Available plant nutrients in soil as influenced by planting methods and herbicidal treatments
Authors: Brar Amandeep Singh , Sharma Parmodh , Kahlon Charanjit Singh , Walia U.S.
Published: July 2019

Rice (Oryza sativaL.)-wheat (Triticum aestivumL.) is the predominant cropping system of North Indian region. Due to continuous following of rice-wheat cropping system every year, weed infestation particularly in wheat, has emerged a major problem resulting in reduced wheat yield and nutrient mining. Integration of suitable planting methods, along with effective weed control measures, can reduce the weed infestation and nutrient mining from the soil and can enhance available plant nutrients in the soil. To evaluate the influence of different planting techniques and weed control practices in wheat on available plant nutrients in soil, a field study was conducted at the department of Agronomy, Punjab Agricultural University, Ludhiana (India) for two consecutive years. The treatments comprised of five planting techniques: conventional tillage, zero till sowing without rice stubbles, zero till sowing in standing rice stubbles , zero till sowing after partial burning of rice stubbles and bed planting and five weed control treatments i.e. clodinafop 60 g/ha, clodinafop 60 g/ha fb 2, 4-D 0.5 kg/ha, sulfosulfuron 25 g/ha, mesosulfuron + iodosulfuron 12 g/ha and unweeded (control). The experiment was conducted in split plot design with planting methods in the main plot and herbicidal treatments in the sub plot with three replications. The results of the study showed that zero till sowing of wheat in standing rice stubbles observed significantly higher soil organic carbon, available nitrogen, phosphorus and potassium than conventional till wheat sowing after removal of rice residues. Although partial burning of rice stubbles also showed positive trend in soil organic carbon, available nitrogen, phosphorus and potassium but retort was less distinct than rice stubbles without burning. Further, zero tillage alone also showed improvement in soil organic carbon and available nitrogen, phosphorus and potassium over conventional tillage. Application of herbicides did not diverge soil organic carbon, but significantly improved the available nitrogen, phosphorus and potassium content in soil than the unweeded (control).
Effect of foliar application of Fe and banana peel waste biochar on growth, chlorophyll content and accessory pigments synthesis in spinach under chromium (IV) toxicity
Authors: Danish Subhan , Tahir Fayyaz Ahmad , Rasheed Muhammad Khalid , Ahmad Niaz , Ali Muhammad Arif , Kiran Sidra , Younis Uzma , Irshad Inam , Butt Beenish
Published: July 2019

Chromium (Cr) toxicity is becoming one of a major issue for the cultivation of crops. Toxicity of Cr directly affects synthesis of chlorophyll and restricts Fe intake, which decreases crop growth. It is well documented that the reduction of Cr toxicity through the application of biochar. However, current experiment was carried out to investigate any positive effect of, banana peel waste biochar (BC) and foliar application of Fe (FFe) on growth and chlorophyll content of Spinacia oleracea L. under different levels of Cr toxicity. Seeds of Spinacia oleracea L. were grown under three levels of Cr i.e. control (Cr0), Cr35 (35 mg Cr kg−1 soil) and Cr70 (70 mg Cr kg-1 soil). Analyzed data confirmed that Spinacia oleracea L. seeds grown in 1% BC amended soils and 1000mM FFe, showed significantly better growth, Fe uptake and chlorophyll content as compared to control at Cr35 and Cr70. A significant improvement in shoot length (16.9 and 26.9%), root length (16.3 and 20.9%), plant fresh (15.5 and 28.3%) and dry weight (70.3 and 77.8%) as compared to control under Cr35 and Cr70, respectively, validated the efficacious functioning of 1% BC and FFe to mitigate Cr toxicity in Spinacia oleracea L. It is concluded that both 1% banana peel waste BC and 1000mM FFe have potential but sole application of FFe is more effective to alleviate Cr toxicity in Spinacia oleracea L. Fortification of Fe by foliar application is more effective comparative to banana peel waste biochar for improvement in growth, chlorophyll content and accessory pigments synthesis in spinach under chromium (IV) toxicity.
Genotypic variability for salt stress tolerance among wild and cultivated wheat germplasms at an early development stage
Authors: Klay Imen , Riahi Leila , Amara Hajer Slim , Daaloul Abderrazak
Published: July 2019

This study was conducted to evaluate the variability of salt tolerance potentials among nine wheat genotypes representing wild and cultivated species namely Triticum turgidum subsp. durum, Triticum aestivum and Aegilops geniculata. Ionomic and photosynthetic traits were used for the screening of the studied samples when faced with four salinity levels of NaCl (0, 50, 100 and 150 mM) under green house conditions at the seedling stage. The investigated genotypes exhibited different levels of salt stress tolerance. Ionomic and photosynthetic traits underline the distinctiveness of the common wheat varieties which highlighted particular performances under salt stress conditions and showed higher tolerance potentials among the studied genotypes. Interestingly, the Vaga variety showed more ability to maintain higher K+/Na+ ratios and Pq coefficients compared with the control conditions and stable Fv/F0 and Fv/Fm ratios. Stable behaviour was exhibited by wild Aegilops accessions while durum wheat varieties have been shown to be more sensitive to salt stress. Further investigations were required for the common wheat variety Vaga, which could be useful for successful breeding and biotechnological improvement strategies concerning wheat species.
High pressure impacts on meteorites
Authors: Petrova Evgeniya V. , Grokhovsky Victor I.
Published: July 2019

In the invited article, we review observations on changes in meteorite texture relevant to the early stages of formation of the Solar System based on the experimental shock wave loading of the material at the laboratory. Investigation of the physical and structural properties of high-pressure impacts on meteorites is important for few reasons, such as: Protection of the Earth from the near-Earth objects (NEOs); Study of processes that cannot yet be achieved under laboratory conditions; Understanding of conditions for asteroid mining.
Bounds for partition dimension of M-wheels
Authors: Hussain Zafar , Kang Shin Min , Rafique Muqdas , Munir Mobeen , Ali Usman , Zahid Aqsa , Saleem Muhammad Shoaib
Published: July 2019

Resolving partition and partition dimension have multipurpose applications in computer, networking, optimization, mastermind games and modelling of chemical substances. The problem of finding exact values of partition dimension is hard so one can find bound for the partition dimension of a general family of graph. In the present article, we give the sharp upper bounds and lower bounds for the partition dimension of m-wheel, Wn
,
m
for all n ≥ 4 and m ≥ 1. Presented data generalise some already available results.
Methylene tetrahydrofolate reductase (MTHFR) gene rs1801133 C>T polymorphisms and response to 5-FU based chemotherapy in patients with colorectal cancer: a meta-analysis
Authors: Jiang Huafeng , Shen Yi
Published: July 2019

Background: Methylene tetrahydrofolate reductase (MTHFR) catalyzes the conversion of 5,10-methylenetetrahydrofolate to 5-methyltetrahydrofolate, a cosubstrate for homocysteine remethylation to methionine. Single nucleotide polymorphisms (SNP) of MTHF rs1801133 C>T can influence susceptibility to colorectal cancer. However, an association between MTHFR rs1801133 C>T polymorphisms and response to 5-Fluorouracil (5-FU) based chemotherapy in patients with colorectal cancer was not clear. Methods: Studies relevant to MTHFR rs1801133 C>T polymorphisms and response to 5-FU based chemotherapy in patients with colorectal cancer were systematic searched in the electronic databases of PubMed, Web of Science, Embase, and China National Knowledge Infrastructure (CNKI). The genotypes of CC, CT, and TT were extracted from each included publication. The genotypes CC, CT, and TT distribution in 5-FU based chemotherapy response and resistance groups were calculated and pooled through random or fixed effect model by the effect size of odds ratio (OR) and 95% confidence interval (95% CI). The publication bias was evaluated through Begg’s funnel plot and Egger’s line regression test. Results: After searching the electronic databases, 16 studies related to MTHFR gene rs1801133 C>T polymorphisms and a response to 5-FU based chemotherapy in patients with colorectal cancer were included in the present meta-analysis. The pooled data showed no statistical difference in tumor response rate between CT+TT and CC groups in the dominant genetic model CT+CC vs CC (OR=1.21, 95% CI: 0.93~1.59, p>0.05) and recessive model TT vs CT+CC (OR=1.37, 95% CI: 0.91~2.06, p>0.05). The grade 3-4 adverse reaction rate between CT+TT and CC groups also had no statistical difference in the dominant genetic model CT+CC vs CC (OR=0.90, 95% CI: 0.76~1.07, p>0.05) and recessive model TT vs CT+CC (OR=1.12, 95% CI: 0.84~1.50, p>0.05). The Begg’s funnel plot and Egger’s line regression test demonstrated no publication bias. Conclusion: The response and adverse reaction of 5-FU based chemotherapy in colorectal patients were not different in terms of MTHFR rs1801133 C>T polymorphisms.