bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparison of computed tomographic attenuation values for epaxial muscles in old and young dogs
Authors: Sutherland-Smith James , Hutchinson Dana , Freeman Lisa M. 
Published: January 2019

Abstract
OBJECTIVE To determine whether the degree of CT attenuation of muscle would differ between healthy old and young dogs.
ANIMALS 10 healthy old (> 8 years old) and 9 healthy young (1 to 5 years old) Labrador Retrievers with a body condition score of 5 or 6 on a 9-point scale.
PROCEDURES CT was performed with the dogs mildly sedated. A freehand closed polygon tool was used to define the outer margin of the left epaxial muscles on each transverse image obtained from the cranial to caudal endplates of T13. The CT attenuation values from every voxel from within these regions of interest were exported from DICOM software as a single dataset in an extensible markup language file. From these data, mean CT attenuation values were calculated for each dog and these mean values were compared between age groups.
RESULTS Mean CT attenuation values for the epaxial muscles were significantly lower in old dogs than in young dogs. A significant negative correlation (r = –0.74) was identified between mean CT attenuation values and dog age.
CONCLUSIONS AND CLINICAL RELEVANCE In addition to loss of skeletal muscle mass, low muscle CT attenuation values suggested that the old dogs in this study also had greater muscle fat content than did young dogs. Additional studies are warranted to evaluate qualitative and quantitative muscle changes in old dogs.
Current-Sensorless Method for Speed Control of Induction Motor Based on Hysteresis Pulse Width Modulation Technique
Authors: Tran Cuong Dinh , Brandstetter Pavel , Dinh Bach Hoang , Ho Sang Dang , Nguyen Minh Huu Chau 
Published: January 2019

This paper describes a new solution to control the induction motor drive system without current sensors based on improving the Hysteresis Pulse Width Modulation technique. It has proposed a control scheme which uses stator currents estimated from the differential equation of state variables to replace the feedback signal from current sensors applied in the hysteresis current controller. To verify the proposed method, simulations in MATLAB/Simulink have been implemented in various operating conditions of the motor where its speed has been changed under load as well as no load conditions. The simulation results have demonstrated the effectiveness of the proposed control method for inductive motor drives. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium provided the original work is properly cited.
A Pleistocene Thrust Fault in Anorthosite of the Rustenburg Layered Suite near Mooinooi, North West Province, South Africa: Neotectonic Implications
Authors: Steenekamp J.M.A. , van der Westhuizen W.A. , Bateman M.D. , Jacobson L. , Nel L. 
Published: January 2019

Abstract
The 2.056 Ma Bushveld Complex (BC) constitutes the largest layered igneous complex known. The complex forms a basin defined by strata that dip centripetally (10° to 20°). This depression presumably resulted from the load of the complex as was proposed by a number of authors. Sagging of between 460 to 740 m appears possible, resulting in flexural-slip movement. This flexural-slip manifests in many thrust faults, (mainly mapped in mines) which display reverse-slip.
The research described in this paper focuses on the age of this deformation. A thrust fault was identified at Lonmin U14 Pit. Reverse slip along the fault displaced unconsolidated sedimentary material that unconformably overlies the Rustenburg Layered Suite strata. Archaeological artefacts (Acheulian hand axes) were discovered buried in this sedimentological layer and provide an age constraint of 1.25 Ma to 250 000 years. Optically stimulated luminescence (OSL) dating further constrained the age of the sedimentary material to less than 175 000 years. The youngest material deposited is a regional black clay layer. At Lonmin U14 Pit this clay layer carries a fabric that resulted from the movement of the thrust and this indicates an age significantly younger than 175 000 years.
PENERAPAN METODE PEMBELAJARAN IMAJINATIF DALAM MENINGKATKAN PRESTASI BELAJAR MENGARANG BAHASA INDONESIA
Authors: Salbiah Are 
Published: January 2019

Kenyataan yang pernah penulis jumpai dalam beberapa kali pengalaman mengoreksi hasi ujian cerita rakyat bahasa Indonesia pada siswa. Dari hasil karangan para siswa tersebut banyak sekali penulis jumpai kelemahan-kelemahan siswa dalam penguasaan unsur-unsur pembentuk karangan itu sendiri. Terlepas dari faktor-faktor lain dari kenyataan tersebut, kita dapat berasumsi bahwa pembelajaran bahasa Indonesia khususnya cerita rakyat masih perlu mendapatkan perhatian lebih serius dari para guru bahasa Indonesia. Penelitian berdasarkan permasalahan, (a) Seberapa jauh peningkatan prestasi belajar siswa dengan diterapkannya metode pembelajaran imajinatif dalam belajar bahasa Indonesia pada siswa Kelas V SDN 20 Penjalaan Tahun Pelajaran 2017/2018? (b) Bagaimanakah pengaruh metode pembelajaran imajinatif terhadap motivasi belajar bahasa Indonesia pada siswa Kelas V SDN 20 Penjalaan Tahun Pelajaran 2017/2018 Tujuan penelitian tindakan ini adalah: (a) Mengetahui peningkatan prestasi belajar siswa setelah diterapkannya metode pembelajaran imajinatif pada siswa Kelas V SDN 20 Penjalaan Tahun Pelajaran 2017/2018. (b) Mengetahui pengaruh motivasi belajar siswa setelah diterapkan metode pembelajaran imajinatif dalam belajar bahasa Indonesia pada siswa Kelas V SDN 20 Penjalaan Tahun Pelajaran 2017/2018. Dari hasil analis didapatkan bahwa prestasi belajar siswa mengalami peningkatan dari siklus I sampai siklus III yaitu, siklus I (70,73%), siklus II (80,50%), siklus III (90,24%). Kesimpulan dari penelitian ini adalah merode pembelajaran imajinatif dapat berpengaruh positif terhadap motivasi belajar Siswa SDN 20 Penjalaan, serta model pembelajaran ini dapat digunakan sebagai salah satu alternatif pembelajaran cerita rakyat bahasa Indonesia. Kata kunci: cerita rakyat bahasa indonesia, metode pembelajaran imajinatif
Perancangan dan Optimasi Antena Vivaldi pada Sistem Radar Penembus Permukaan (Ground Penetrating Radar)
Authors: MARUDDANI BASO , EFRI SANDI EFRI SANDI , NAUFAL SALAM MUHAMMAD FADHIL 
Published: January 2019

ABSTRAKAntena Vivaldi merupakan salah satu jenis antena yang diimplementasikan pada radar penembus permukaan (Ground Penetrating Radar, GPR). GPR adalah salah satu metode non-destructive testing yang biasa digunakan untuk mengetahui kondisi beton/jalan raya. Penelitian ini merancang sebuah antena Vivaldi untuk digunakan pada GPR dengan frekuensi kerja 1 GHz – 2 GHz. Metode yang digunakan untuk merancang dan mengoptimasi antena Vivaldi adalah dengan mengubah beberapa parameter untuk mencapai spesifikasi yang diinginkan. Parameter tersebut antara lain lebar antena, panjang antena dan tapered slot. Optimasi yang dilakukan tetap memperhatikan pola radiasi antena agar tetap terarah. Hasil penelitian ini menghasilkan antena Vivaldi dengan dimensi 350x300 mm dengan return loss di bawah -10 dB pada rentang frekuensi 1 GHz – 2 GHz. Hasil penelitian juga menunjukkan bahwa perubahan nilai parameter lebar antena dan tapered slot menggeser frekuensi kerja antena secara signifikan.Kata kunci: Ground Penetrating Radar, Vivaldi, return loss, parameter antena ABSTRACTThe Vivaldi antenna is one type of antenna that is implemented on Ground Penetrating Radar (GPR). GPR is one of the non-destructive testing methods commonly used to determine the condition of concrete / highway. This studyaim to design a Vivaldi antenna to be used on GPR with a working frequency of 1 GHz - 2 GHz. The method that used to design and optimize Vivaldi antennas is by changing several parameters to achieve the desired specifications. These parameters include antenna width, antenna length and tapered slot. Optimization carried out still observes the radiation pattern of the antenna to keep it directed. The results showed that 350 x 300 mm antennas with return loss below -10 dB in the frequency range of 1 GHz - 2 GHz. The results also show that changes in the parameter width of the antenna and tapered slots shift the antenna working frequency significantly.Keywords: Ground Penetrating Radar, Vivaldi, return loss, antenna parameter
Perancangan dan Analisis LTE Advanced 850 Mhz untuk Meningkatkan Penetrasi Mobile Broadband di Indonesia
Authors: WAHYUDIN ADE , AMANAF MUNTAQO ALFIN , RATNASARI ITA KUSMIASIH 
Published: January 2019

ABSTRAKLayanan mobile broadband LTE telah berkembang di Indonesia, namun penyebarannya belum merata. Selain itu, sumber daya frekuensi semakin terbatas seiring dengan meningkatnya trafik layanan broadband. Maka untuk mengatasi hal tersebut, spektrum frekuensi 850 MHz dapat diterapkan pada teknologi LTE advance untuk meningkatkan penetrasi mobile broadband. Maka, untuk mengukur tingkat penetrasi, sehingga dilakukan perancangan LTE Advance 850 MHz yang dibandingkan dengan LTE 1800 MHz eksisting berdasarkan pedekatan cakupan dan kapasitas jaringan. Perhitungan dan simulasi menghasilkan peningkatan penetrasi cakupan wilayah hingga 65% ketika menerapkan LTE Advanced 850 MHz. Sedangkan pendekatan kapasitas, pada parameter active user, jumlah connected user pada frekuensi 850 MHz mencapai 98% jauh dibandingkan frekuensi 1800 Mhz yang mencapai 91%, serta kualitas sinyal RSRP meningkat 37%-46%Kata kunci: LTE Advanced, 850MHz, Effective Throughput, Active User, Penetrasi, Broadband ABSTRACTLTE mobile broadband services is growing rapidly in Indonesia, however the deployment does not spread evenly, especially in remote area. Moreover, resource of frequency spectrum is limited because of the growth of broadband traffic. Thus, frequency spectrum 850 MHz can be implemented for LTE Advanced to increase mobile broadband penetration. So, to measure LTE penetration level, LTE Advanced 850 MHz design is compared to the existing LTE 1800 MHz by coverage and capacity approachment. According to calculation and simulation, coverage penetration increase up to 65% as LTE Advanecd 850 MHz implemetation. While, the connected user of LTE 850 MHz reach 98% when compared to LTE Advanced 1800 MHz that only reach up to 91% and also signal quality increase up to 37%-46%.Keywords: LTE Advanced, 850MHz, Effective throughput, Active user, Penetration, Broadband
Implementasi Pengamanan Transmisi Sinyal EKG (Elektrokardiogram) secara Daring dengan Metode Anonimasi
Authors: JUSAK JUSAK , SETIAWAN BRAMASTA AGNANDA , SOLEHUDIN SONY , PUSPASARI IRA 
Published: January 2019

ABSTRAKData World Health Organization (WHO) pada tahun 2014 menunjukkan bahwa di Indonesia sebanyak 37% dari seluruh penyebab kematian adalah penyakit yang berhubungan dengan jantung. Kehadiran teknologi dan pemanfaatan Internet of Things (IoT) diharapkan dapat membantu mengurangi resiko kematian akibat penyakit jantung tersebut. Pada penelitian ini, pengukuran dan pengamatan sinyal jantung melalui tele-auskultasi sinyal elektrokardiogram (EKG) dilakukan. Untuk mengamankan sinyal EKG dalam proses transmisi melalui jaringan Internet digunakan metode anonimasi sinyal berbasis algoritma Jusak-Seedahmed. Hasil pengujian menunjukkkan bahwa algoritma Jusak-Seedahmed dapat melakukan proses anonimasi dan proses rekonstruksi sinyal dengan baik. Pengujian korelasi silang antara sinyal hasil rekonstruksi dan sinyal EKG asli sebelum anonimasi menghasilkan korelasi sebesar 1 pada lag=0. Sinyal EKG hasil rekonstruksi ditampilkan dalam aplikasi mobile untuk memudahkan analisis oleh dokter.Kata kunci: elektrokardiogram, keamanan, anonimasi, IoT, FFT ABSTRACTBased on the latest data released by the World Health Organization in 2014, deaths caused by cardiovascular disease in 2012 have reached 37% of the total number of non-communicable diseases deaths in Indonesia. Therefore, it is expected that the applications of the Internet of Things (IoT) might be used to reduce the risk of death due to the heart related problems. In this research, a tele-auscultation technique for measuring and monitoring electrocardiogram (ECG) signal was built. To secure transmission of the ECG signal over the Internet, we implemented a recently proposed Jusak-Seedahmed algorithm. Our examinations showed that the algorithm performed the anonymization and reconstruction processes well. Crosscorrelation analysis showed that correlation between the reconstructed and the original ECG signal at lag=0 was 1. Furthermore, a mobile-based application had been built to display the reconstructed ECG signal for further analysis.Keywords: electrocardiogram, security, anonimization, IoT, FFT
Desafios no trabalho da assessoria pedagógica do ensino médio presencial com mediação tecnológica do Amazonas
Authors: Mello Christiane Alves Byron de , Figueiredo Vítor Fonseca 
Published: January 2019

O presente artigo é um recorte da dissertação da autora, desenvolvida no âmbito do Mestrado Profissional em Gestão e Avaliação da Educação (PPGP) do Centro de Políticas Públicas e Avaliação da Educação da Universidade Federal de Juiz de Fora (CAEd/UFJF). O caso de gestão estudado teve como questão norteadora as ações que podem ser adotadas para melhorar o trabalho do Assessor Pedagógico junto aos Professores Ministrantes e Presenciais do Ensino Médio Presencial com Mediação Tecnológica. Para a análise do caso de gestão, a pesquisa usou metodologia qualitativa, análise de documentos, a realização de entrevistas e aplicação de questionários para a coleta de dados. As entrevistas foram realizadas com a equipe de Assessoria Pedagógica do Ensino Médio do Centro de Mídias de Educação do Amazonas (CEMEAM) e com o Coordenador Local de Manacapuru. O questionário foi aplicado aos Professores Ministrantes e aos Professores Presenciais do 1º ano do Ensino Médio. Os resultados da pesquisa apontam duas problemáticas centrais: i) a dificuldade na formação dos Professores Presenciais para o desempenho de suas atribuições técnicas e pedagógicas; ii) a necessidade de acompanhamento, monitoramento e avaliação dos fluxos de comunicação interna e externa no CEMEAM. A partir dessas constatações, com intuito de minimizar essas dificuldades, foram propostas as seguintes ações de intervenção: Proposta de Curso de Formação do Coordenador Local do EPMT; Implementação do acompanhamento, monitoramento e avaliação dos fluxos de comunicação interna e externa do CEMEAM.
Palavras-Chave: Ensino Mediado por Tecnologia; Mediação; Amazonas.
O portefólio como estratégia de ensino-aprendizagem no ensino superior
Authors: Pessôa Teresa , Conceição Andreia , Moura Maria Socorro , Veríssimo Patrícia , Rebelo Piedade Vaz 
Published: January 2019

Em Portugal, o uso de portefólios na educação tem vindo paulatinamente a ganhar visibilidade nas práticas pedagógicas desde a Educação de Infância até ao Ensino Superior, neste caso, sobretudo, no âmbito da supervisão da formação inicial de professores. No entanto, este instrumento pode mostrar-se muito valioso em contexto de formação contínua como estratégia de ensino-aprendizagem, de “investigação”, avaliação e reflexão sobre e nas práticas (Schön, 1983; 2000), conduzindo a um processo de (auto) construção colaborativa de conhecimento, de desenvolvimento pessoal e profissional dos alunos em formação pós-graduada ou mestrado. Tomando como princípio que a aprendizagem é um processo ativo, tal como preconizado pelo processo de Bolonha, que importa o caminho ou processos, e não simplesmente resultados ou produtos e que, tal como defendeu John Dewey, é importante aprender a pensar bem devendo os alunos ser os construtores do seu próprio conhecimento, a aprendizagem através da construção de portefólios constitui, sem dúvida, a estratégia adequada baseada nas metodologias construtivistas de ensino cabendo ao docente orientar e monitorizar este processo. Os portefólios, ao implicarem a escrita e a reflexão individual, auxiliam o formando, também ele docente, a tomar consciência das suas práticas, dos seus progressos e dificuldades, promovendo também a partilha contínua com os pares das suas análises e questionamentos conduzindo a uma reflexão colaborativa capaz de tornar os alunos supervisores de si próprios. Nesta apresentação pretende-se dar a conhecer a experiência de trabalho desenvolvida através de portefólios e (e)portefólios de aprendizagem nas unidades curriculares de “Modelos e Práticas de Supervisão Pedagógica” e “Conceções e Práticas Reflexivas em Educação”, no âmbito do mestrado em “Supervisão Pedagógica e Formação de Formadores” da FPCEUC, pela voz das docentes responsáveis e das mestrandas participantes.
Palavras-chave: Portefólio; Construtivismo; Colaboração; Ensino; Aprendizagem.
Cephalometric studies of Ukrainian adolescents with orthognathic bite by the method of E.P. Harvold
Authors: Chernysh A. V. 
Published: January 2019

According to many numerical literary sources, the modern direction of provision of dental care involves an individual approach to the patient, in particular, based on his gender, age and nationality. This calls for the creation of its own regulatory bases for the population of different countries and ethnic groups, taking into account all possible criteria. The purpose of the study is to establish and analyze the cephalometric parameters by the method of E.P. Harvold in young men and women of Podillia region of Ukraine with orthognathic bite. Primary lateral teleroentgenograms of 38 young men and 55 women with normal occlusion close to orthognathic bite, obtained using the Veraviewepocs 3D device, Morita (Japan), were taken from the data bank of the research center of the National Pirogov Memorial Medical University, Vinnytsya. Cephalometric measurements were performed according to the recommendations of E.P. Harvold. Statistical processing of the obtained results was carried out in the license package "Statistica 6.0" using nonparametric methods of estimating the results. When comparing teleroentgenographic indices between boys and girls of the Podillia region of Ukraine with orthognathic occlusion, significantly higher values of the length of the upper and lower jaw, lower facial height and interjaw differences in young men were established, and Ap1uAp1l-DOP angle was significantly higher in young women. When comparing these data with the results obtained by E.P. Harvold, the boys and girls of the Podillia region of Ukraine with orthognathic bite have significantly lower values of the length of the upper and lower jaw and lower facial height. In addition, Ukrainian young women have significantly higher values of the Ap1uAp1l-DOP angle and a tendency to lower interjaw differences, while in young men, the tendency towards higher values of the cross-sectional angle than the value of these parameters obtained by E. Harvold is established. The results of the study confirm the need to create a normative basis for teleroentgenographic indices by the method of E.P. Harvold for the population of different regions of Ukraine, taking into account both sexual and age affiliation.
MADRASAH DAN PERUBAHAN SOSIAL
Authors: Ramadhani Rizki 
Published: January 2019

AbstrakMadrasah merupakan lembaga pendidikan Islam yang mengintegrasikan ilmu-ilmu agama dengan ilmu umum. Ia berakar dari sistem pembelajaran pondok pesantren yang kemudian dipadukan dengan sistem pembelajaran klasikal ala Barat. Madrasah dengan eksistensinya selama satu Abad terakhir ini, telah memberikan sumbangan yang besar bagi perubahan sosial (progress) yang ada pada masyarakat Indonesia. Dengan adanya madrasah ini pula, pendidikan di Indonesia semakin berwarna, sehingga masyarakat memiliki banyak alternatif pendidikan untuk anak cucunya.Kata Kunci : Madrasah, Perubahan SosialAbstractMadrasah is Islamic education institute which integrate religion science and general science. It comes from system of pondok pesantren then combined with system of classical learning ala western. Madrasah with its existance along the last a hundred years, gives a big contributions for social change (progress) to Indonesian. By the existante of madrasah, education in Indonesia become variative, so the social has many alternative education for their decendants.Keyword : Madrasah, Social Change
Clima Organizacional: un componente fundamental en el bienestar integral de los colaboradores
Authors: Andrade Montenegro Andrea Katherine , Betancourth Rosero Diana Cristina 
Published: January 2019

DOI: https://doi.org/10.31948/rev.criterios.25.1-art-5
El presente artículo describe la implementación de estrategias en torno al fortalecimiento del clima laboral en la Clínica Oftalmológica Praga S.A.S. Para este fin se efectuó un diagnóstico que incluyó 35 colaboradores y que permitió conocer el estado de esta variable. Este diagnóstico se obtuvo a través del test ‘Teoría y Técnicas de Desarrollo Organizacional’ de Marín, Melgar y Castaño (2015).
Con base en los resultados obtenidos en este test, se realizó un trabajo con los líderes de cada proceso, al considerar que su rol dentro de la organización cumple un papel indispensable por ser entes de motivación e influencia en sus grupos de trabajo. La ejecución de acciones trasformadoras integró subvariables como: Dirección, Involucración al cambio, Solución de conflictos, Intercambio de información, entre otras, las cuales aportaron en gran medida al mejoramiento del bienestar de la organización y sus colaboradores.
Stereotactic Body Radiation Therapy for Renal Cell Carcinoma with Inferior Vena Cava Thrombus – Initial Experience Report and Literature Review
Authors: Freifeld Yuval , Margulis Vitaly , Woldu Solomon L. , Timmerman Robert , Brugarolas James , Hannan Raquibul 
Published: January 2019

Background: Renal cell carcinoma (RCC) with inferior vena cava thrombus (IVC-TT) represents a relatively infrequent presentation. Curative treatment includes extirpative surgery; however, this is associated with high rates of recurrence and complications. Stereotactic body radiation therapy (SBRT) has been used to treat metastatic RCC with good results. SBRT may be used as part of multimodal therapy to provide local control of IVC-TT. Objective: We report our initial experience with SBRT to IVC-TT, including extended follow-up, and review the literature. Results: We report on two patients with level IV IVC-TT. Both had progressive disease while receiving systemic therapy and were eventually treated with SBRT to the IVC-TT, which showed good local control. Overall survival from the time of SBRT was 18 and 34 months, with no additional systemic therapy; one patient underwent additional SBRT and resection of metastatic sites. Conclusions: SBRT to RCC IVC-TT may be considered in selected patients for local tumor control.