bluuebunny/crossref_metadata_2025_split huggingface dataset:
Application of Ultrasonic Waves in Enhancing Oil Recovery in Secondary Recovery Phase
Authors: Abdulfatah Hajara Kabeer 
Published: October 2018

Abstract
Recoverable oil may often remain trapped after secondary recovery processes due to capillary forces, inapt mobility ratio & heterogeneity in the reservoir. To optimize oil recovery, more oil has to be mobilized using enhanced oil recovery (EOR) techniques that are not always so economical. Use of ultrasonic stimulation in the reservoir is a recent innovation that is scarce in literature. It is less risky and it helps to overcome interfacial tension between oil & water, reduce capillary pressure & aid oil mobilization.
This paper presents the use of ultrasonic waves in enhancing oil recovery in the tertiary recovery phase using Niger Delta crude oil. Laboratory experiments were carried out and a 3D model of a reservoir created using the Schlumberger eclipse 2010 simulator to predict the performance of the base (water flooding) was employed. The experimental work was in two folds termed test A and B. The former was performed without ultrasound while the latter involves the use of ultrasound (up to a frequency of 54kHz) in the designed flooding system. The resulting relative permeability data from both approaches were obtained and comparatively analyzed.
Using MATLAB, results showed that the use of ultrasound waves in reservoirs (permeability&gt; 20 mD, porosity &gt; 15%) leads to increase in recovery by up to 50%. This increase is due to the ability of the waves to unblock the pores, thus creating larger path for the reservoir fluid to flow. The flooding scheme shows that the use of ultrasonic waves in the porous medium yielded a reduction in the critical oil saturation of 0.09 which represents 25.4% of the residual oil saturation obtained with water flooding scheme. Critical oil saturation values of 0.28 and 0.37 were obtained for the wave stimulation and water flooding schemes respectively. The results also shows connate water saturation of 0.27 at relative permeability to oil of 1 which is typical of the results from a well performed imbibition process.
Seismic Onset Time Inversion Method for Infrequent Seismic Surveys
Authors: Liu Tian 
Published: October 2018

Abstract
The integration of seismic data into high-resolution geological model, provides great potential for calibrating reservoir parameters, which enables better understanding of the reservoir sweep and flow patterns. The efficacy of seismic inversion method based on the travel time of fluid saturation front using seismic onset times has been well demonstrated for integrating frequent time-lapse seismic surveys. However, due to the high cost associated with conducting seismic surveys, frequent seismic surveys are usually not commonly available. In this paper, I have generalized the onset time inversion method for infrequent seismic data using interpolated seismic onset times, making the method applicable for efficiently integrating infrequent seismic surveys. With the valuable information provided by seismic data, the uncertainty in the reservoir model parameters can be reduced through history matching. The history matched model can be used to optimize reservoir management and field development strategy. The proposed method is illustrated using synthetic and field applications.
Pore Pressure Prediction in Unconventional Carbonate Reservoir
Authors: Elmahdy M. , Farag A. E. , Tarabees E. , Bakr A. 
Published: October 2018

Abstract
Prediction of the formation pore pressure is considered as a significant simulation process during the drilling and production phases of the carbonate reservoir. The deficiency in this prediction allows for the occurrence of many troubles like blowouts, kicks, hole washouts, wellbore breakout, and stuck pipe. The most common conventional methods for the pore pressure prediction are Eaton's and Bower's methods which depend mainly on the normal compaction trend and commonly applied on Shales. The objective of this work is the prediction of the formation pore pressure by the application of the modified Atashbari prediction model upon the wireline logging data. This method depend on the porosity and the compressibility attribute of the rocks for the estimation of the pore pressure without any need for the normal compaction trends. The method was applied on the carbonate reservoir of the Middle Eocene Apollonia Formation, Abu El-Gharadig basin, Egypt. It is a gas bearing reservoir which characterized by its high porosity and low permeability. The results were compared with the other commonly used methods and show an improvement in the pore pressure estimation. It can be used as an individual method or in complement with other available methods.
Anais 1º COREO - Congresso Internacional de Reabilitação Oral
Authors: Menezes Diogo José Barreto de , Galvão Anna Karyna , Ribeiro Eduardo Dias , Franceschini Neto Francisco , Lima Júnior Marcos Aurélio Vasconcelos , Silva de Matos Robert , Freire Julliana Cariry Palhano , Pereira Laudenice de Lucena , Viana Filho José Maria Chagas , Gonçalves Patrícia Guerra Peixe , Pinheiro Rachel Christina de Queiroz , Rodrigues Raíres Chaves da Silva , Santos Carllus Alberto Oliveira dos , Nóbrega Sheyla Christinne Lira da , Abílio Vanessa Maria Freire , Lima Larissa Chaves Morais de , Suassuna Thalles Moreira , Oliveira Elson Tadeu Fernandes de , Caldas Aparecida Tharlla Leite de , Souza Ricardo Liberalino Ferreira de , Santos Fábio Gomes dos , Figueiredo Viviane Maria Gonçalves de , Campos Fernanda 
Published: October 2018

Prezados Colegas, É com imensa satisfação que convido a comunidade odontológica para participar do I Congresso Internacional de Reabilitação Oral - COREO, a ser realizado no Centro de Convenções de João Pessoa, nos dias 27, 28 e 29 de setembro de 2018. O COREO surgiu da necessidade de trazer para a região nordeste uma agenda científica em odontologia, com foco voltado para a reabilitação oral, priorizando a prática clínica baseada em evidências científicas. O tema central do I COREO será “Mudança de paradigma com relação às novas tecnologias”. Baseado nessa temática, serão discutidos nesse evento, as novas condutas e protocolos clínicos e científicos com o objetivo de usufruir dos novos recursos tecnológicos disponíveis nas diversas especialidades, na busca de tratamentos mais previsíveis em longo prazo. Para abrilhantar o evento, selecionamos conceituados conferencistas com expressivo conhecimento científico, aliado a experiência clínica. Aproveitando o ensejo, reiteramos o nosso convite aos colegas Cirurgiões-Dentistas, Acadêmicos de Odontologia, Técnicos em Prótese Dentária, Auxiliares e Técnicos em Saúde Bucal para fazer um grande e inesquecível evento, que ficará para a história da Odontologia Brasileira.Diogo José Barreto de Menezes - Presidente do 1º COREO
Emergence of High-level Gentamicin Resistance among Enterococci Clinical Isolates from Burn Patients in South-west of Iran: Vancomycin Still Working
Authors: LABIBZADEH MARYAM , KAYDANI GHOLAM ABBAS , SAVARI MOHAMMAD , EKRAMI ALIREZA 
Published: October 2018

Abstract

Enterococcus faecalis and Enterococcus faecium are among the main agents associated with nosocomial infections with high mortality in immunocompromised patients. Antibiotic resistance, especially against gentamicin and vancomycin among Enterococci, is a risk factor that could increase the morbidity and mortality rate. 179 Enterococci isolates from burn patients were included in this study. Antibiotic susceptibility testing was done using the disk diffusion test and minimum inhibitory concentration (MIC) was evaluated by agar microdilution. Vancomycin and gentamicin resistance associated genes including vanA, vanB, vanC, aac (6’)-Ie aph(2’’), aph(3’)-IIIa and ant(4’)-Ia were detected by PCR and their statistical relation with antibiotic resistance was evaluated. E. faecalis was the more prevalent strain among our local isolates and showed a higher antibiotic resistance in comparison to E. faecium. Vancomycin had a good antibacterial effect on the Enterococcus spp. isolates; however, resistance to this antibiotic and a high-level gentamicin resistance (HLGR) phenotype were observed. Among van operon genes, vanA was the most prevalent gene and among the gentamicin resistance genes, aph (3’)-IIIa was more frequent. The HLGR Enterococci are a real challenge in nosocomial infections. Vancomycin is a key antibiotic to treat such infections but emergence of VRE in our region could be a real concern and, therefore, phenotypic and molecular surveillance must be considered.
VITAMIN STATUS OF LAW ENFORCEMENT OFFICERSUNDER THE INFLUENCE OF COMBAT STRESS
Authors: Potolitsyna N. N. , Boyko E. R. 
Published: October 2018

Law enforcement officers with different levels of combat stress (men, residents of the Komi Republic, n=33, 35,0 (32,0– 39,0) years old) were examined before (November) and after (March) trips to the combat zone. The control group included agents of the Ministry of emergency situations with a low level of stress (men, residents of the Komi Republic, 32,0 (30,0–35,0) years old). In total, law enforcement officers were shown to have a wide prevalence of vitamin deficiency: about 50% of persons had hypovitaminosis for vitamins A, E, about 35% — for vitamins B1, B2 and 24% — for vitamin C. A parallel study of the control group and law enforcement officers in November showed that initially there were more persons with reduced vitamin status in law enforcement officers, especially in the level of vitamins B1 and E. In March, after the arrival of law enforcement officers from the combat zone, they found a significant decrease in the percentage of persons with hypovitaminosis for vitamins A, E, C and an increase vitamin B1 deficiency. Changes vitamin status in the control group from November to March were not so significant.
Pengaruh Metode Resitasi Terhadap Hasil Belajar Biologi Siswa Kelas XI Sekolah Menengah Atas Negeri 1 Tanjung Jabung Timur
Authors: Susanti Try , Sari Novita , Hidayat Hidayat 
Published: October 2018

Pemberian tugas dan pekerjaan rumah kepada siswa adalah salah satu metode guru dalam proses pembelajaran di Sekolah Menengah Atas Negeri 1 Tanjung Jabung Timur. Tugas dan pekerjaan rumah tersebut diberikan agar siswa belajar secara mandiri. Tetapi tugas yang diberikan hanya sekedar tugas, tidak ada tuntutan dari guru agar siswa dapat mempertanggung jawabkan tugas yang dikerjakannya. Hal ini menyebabkan siswa tidak termotivasi untuk memahami materi yang terkandung dalam tugas tersebut sehingga mempengaruhi hasil belajar. Untuk itu perlu adanya suatu metode pembelajaran yang dapat mengatasi permasalahan tersebut. Tujuan penelitian ini untuk mengetahui seberapa besar pengaruh metode resitasi terhadap hasil belajar. Penelitian ini menggunakan pendekatan kuantitatif yang bersifat eksperimen semu dengan desain Postest Only Control Design. Dengan teknik pengambilan sampel secara undian, dan didapat kelas XI IPA 2 (eksperimen) dan kelas XI IPA 3 (kontrol). Dari analisis data uji tes “t” didapat hasil taraf signifikansi ttabel 5% = 1,996, t0 =3,05 didapat hasil thitung ≥ ttabel yang berarti bahwa adanya selisih signifikansi mean. Pada uji Effect Size untuk mengetahui pengaruh metode resitasi terhadap hasil belajar didapat hasil dengan persentasi 76% dalam kategori berpengaruh sedang. Dan hasil dari perhitungan korelasi phi dengan taraf signifikansi 5% = 0,223 didapat hasil rhitung ≥ rtabel 0,265 ≥ 0,223 artinya Ha diterima. Dari analisis data di atas dapat disimpulkan bahwa terbukti terdapat pengaruh yang signifikan antara penggunaan metode resitasi terhadap hasil belajar biologi.
Pengembangan Bahan Ajar Praktikum dan Instrumen Penilaian Berbasis Keterampilan Proses Sains pada Mata Kuliah Mikologi Program Studi Pendidikan Biologi Universitas Jambi
Authors: Harlis Harlis , Budiarti Retni S 
Published: October 2018

Upaya meningkatkan pemahaman mahasiswa terhadap pembelajaran Mikologi, maka dilakukan praktikum sebagai penunjang dalam pengembangan Keterampilan Proses Sains peserta didik. Penerapan Keterampilan Proses Sains sekaligus pengembangan sikap ilmiah yang mendukung proses pengetahuan dalam diri peserta didik dalam hal ini mahasiswa sangat dimungkinkan dalam kegiatan praktikum. Tujuan pengembangah ini adalah untuk menghasilkan Bahan Ajar Praktikum dan Instrumen Penilaian Berbasis Keterampilan Proses Sains Pada Mata Kuliah Mikologi Program Studi Pendidikan Biologi Universitas Jambi yang valid, praktis dan efisien. Penelitian ini adalah penelitian pengembangan (research and development), dengan model pengembangan ADDIE (Analysis, Design, Development, Implementation, and Evaluation). Hasil penelitian ini didapat uji validitas bahan ajar praktikum rata-rata validitas 3,15 (kategori valid), validitas instrumen diperoleh rata-rata nilai dari validator 3,12 (kategori valid). Uji praktikalitas dari keterlaksanaan praktikum menunjukkan rata-rata 3,56 (kategori praktis), dan dari angket respon mahasiswa dengan rata-rata 3,51 (kategori praktis). Hasil uji efektivitas diperoleh rata-rata aktivitas siswa dengan rata-rata nilai 81,65 (kategori sangat tinggi). Dengan demikian dapat disimpulkan bahan ajar praktikum dan instrumen penilaian berbasis keterampilan proses sains yang dikembangkan berada pada kategori valid, praktis dan sangat efektif.
Pengaruh Penerapan Strategi Pembelajaran Rotating Trio Exchange Terhadap Hasil Belajar Mata Kuliah Dasar-Dasar dan Proses Pembelajaran Biologi
Authors: Sadikin Ali 
Published: October 2018

Salah satu strategi pembelajaran biologi adalah strategi pembelajaran Rotating Trio Exchange (RTE). Strategi ini merupakan rencana kegiatan pembelajaran untuk mengaktifkan mahasiswa. Strategi ini merupakan cara peserta didik untuk mendiskusikan permasalahan dengan beranggotakan tiga orang. Pengaruh penerapan strategi pembelajaran Rotating Trio Exchange terhadap hasil belajar mahasiswa pada mata kuliah Dasar-dasar dan proses pembelajaran biologi aspek kognitif, aspek afektif dan aspek psikomotor. Jenis penelitian ini adalah penelitian True Experimental Design. Peneliti ini telah dilakukan pada semester Ganjil 2017/2018. Sedangkan sampel yang digunakan kelas Reguler A Semester 3 sebagai kelas eksperimen dan kelas reguler B Semester 3 sebagai kelas kontrol. Instrumen dalam penelitian ini adalah tes objektif dan lembar pengamatan. Hasil penelitian menunjukkan pada aspek kogitif adalah thitung =2,395 dan ttabel = 1,674. Aspek afektif adalah thitung = 2,733 dan ttabel = 1,674. Pada aspek Psikomotor thitung = 2,520 dan ttabel = 1,674. Berdasarkan hasil penelitian pada aspek kognitif penggunaan strategi pembelajaran Rotating Trio Exchange dapat meningkatkan hasil belajar mahasiswa pada mata kuliah Dasar-Dasar dan Proses Pembelajaran Biologi. Pada aspek afektif perlakuan yang berbeda pada waktu proses pembelajaran sehingga terdapat perbedaan hasil belajar yang berbeda pula. Sedangkan pada aspek psikomotor terdapat keaktifan serta keterampilan mahasiswa dikelas. Dari hasil penelitian dapat disimpulkan bahwa penggunaan strategi pembelajaran Rotating Trio Exchange (RTE) berpengaruh terhadap hasil belajar mahasiswa pada mata kuliah DPPB. Diharapkan strategi pembelajaran RTE dapat digunakan dalam Pembelajaran mata kuliah lain.
Tratamiento de la Hepatitis C crónica en pacientes de edad avanzada con Enfermedad Renal Crónica: Revisión estructurada
Authors: Ledezma Morales Mónica , Amariles Muñoz Pedro 
Published: October 2018

La Hepatitis C (HC) es un problema de salud pública a nivel mundial, con alta prevalencia en pacientes mayores de 50 años. Esta población es más propensa a sufrir Enfermedad Renal Crónica (ERC), tanto por la infección por el Virus de la HC, como por su edad y múltiples comorbilidades. Aquellos con ERC, estadios 4 o 5, pueden ser una población de mayor complejidad farmacológica, por su variabilidad farmacológica y por la limitada información de seguridad y eficacia de los nuevos antivirales en ese grupo de pacientes. Objetivo: sistematizar información de dosificación de medicamentos para la HC crónica, a partir de estudios o reportes que incluyeran pacientes de edad avanzada con ERC.Material y método: revisión estructurada en PubMed/Medline con los términos: "Hepatitis C", “Aged", "Renal Insufficiency"; artículos publicados entre 01/08/2012 y 01/08/2017, en inglés o español, estudios realizados en humanos, con acceso a texto completo.Resultados: Se identificaron 83 artículos, de los cuales se seleccionaron 14; además se incluyeron 4 manuscritos referenciados en las publicaciones revisadas. Se estructuró un cuadro con información de dosificación de antivirales para el tratamiento de la HC en pacientes de edad avanzada con ERC.Conclusiones: Se presenta información sobre el ajuste de dosis de los medicamentos antivirales utilizados para la HC crónica, en pacientes de edad avanzada y ERC, que podría favorecer los procesos de prescripción y seguimiento, para contribuir a la efectividad y seguridad de dichos fármacos en esta población.
CURRÍCULO E CONHECIMENTO ESCOLAR COMO MEDIADORES EPISTEMOLÓGICOS DO PROJETO DE NAÇÃO E DE CIDADANIA.
Authors: ALMEIDA Fernando José de , Silva Maria da Graça Moreira da 
Published: October 2018

Este artigo tece o diálogo entre currículo e conhecimento escolar, frente às crescentes demandas e responsabilidades educacionais, não tipicamente escolares, originadas nas últimas décadas do século XX. Reconhece e nomeia as tensões inerentes ao contexto educacional contemporâneo e suas variáveis e, para fomentar o diálogo, revisita brevemente as raízes da educação integral escolanovistas, bem como os marcos da construção das políticas educacionais brasileiras culminando com a Base Curricular Comum Curricular (BNCC). Versa sobre a centralidade epistemológica do conhecimento escolar que cabe à finalidade da escola e à sua coerente competência como agência social de formação do conhecimento de gerações. O artigo contribui com o diálogo apontando caminhos para a construção de um desenho curricular que aproxime o conhecimento social com o conhecimento cultural, linguístico, científico e histórico, para consolidar um trabalho escolar de formação de competências cognitivas dos estudantes na participação da vida e de um digno viver coletivo. Conclui, provisória e preocupadamente, que as variáveis culturais e políticas que marcaram o cenário onde debate curricular ocorreu, se organizam em torno da carência que o pensamento estratégico sobre currículo acontece, sobre a pouca clareza do que seja o conhecimento escolar como espaço epistemológico de desenvolvimento do pensamento de um país, e de uma indefinição da função do estado enquanto instituição social que cuida da educação como direito de todos e como bem público.
KAJIAN MEDIA TANAM HIDROPONIK DARI CAMPURAN BAHAN BAKU LIMBAH BAGLOG DAN ARANG SEKAM
Authors: Isworo Dyah , Triyono Sugeng , Haryanto Agus , Zulkarnain Iskandar 
Published: October 2018

Penelitian ini bertujuan untuk mengetahui karakteristik sifat fisik media tanam diantaranya Uji Konsistensi (uji benturan dan rendam jenuh), Bulk Density Media, Daya Serap Air, Kekerasan, serta pH dan EC Media. Serta menganalisis pertumbuhan tanaman pak choi dengan media hasil pencampuran antara limbah baglog dan arang sekam. Penelitian ini dilaksanakan di Jurusan Teknik Pertanian Universitas Lampung pada bulan Juli – September 2017. Rancangan yang digunakan adalah rancangan acak lengkap dengan tiga ulangan. Faktor pertama adalah komposisi media dengan 5 perlakuan yaitu limbah baglog, 2(balgog) : 1 (arang sekam), 1(baglog) : 1(arang sekam), 1 (baglog) : 2 (arang sekam), arang sekam. Faktor kedua adalah perekat dengan 3 perlakuan yaitu 0%, 10%, dan 20% dari berat media. Hasil penelitian menunjukkan bahwa media tanam arang sekam memiliki hasil tanaman terbaik jika dibandingkan dengan media tanam limbah baglog murni, namun terdapat perlakuan yang juga menghasilkan tanaman seperti perlakuan M4P3 (campuran 1 limbah baglog : 2 arang sekam + perekat 20%). Komposisi media berpengaruh terhadap kekerasan media, nilai BD media tetapi tidak berpengaruh terhadap daya serap air sehingga menghasilkan berat berangkasan segar yang beragam. Kombinasi perlakuan M5P2 (arang sekam murni + perekat 10%) memberikan hasil terbaik yaitu nilai daya serap air 352,1328%, BD media 0,5167 g/cm3 dan kekerasan media 3,6710 N/cm2. Kata Kunci: limbah baglog, arang sekam, media tanam, hidroponik.
PENGENALAN PENGOLAHAN SUSU KAMBING DI KECAMATAN SUKADANA KABUPATEN LAMPUNG TIMUR [Introduction of Goat Milk Processing in Sub-district of Sukadana, District of East Lampung of the Lampung Province]
Authors: Wylis Ratna , Santri Novilia , Asnawi Robet 
Published: October 2018

Milk is easily damaged when handling is poor, so it has a relatively short shelf life. To handle the excess milk production, the most appropriate step is to preserve milk to extend the shelf life through processing, and at the community level the consumption of processed milk is higher than the consumption of fresh milk. This research was conducted in Muara Jaya Village, Sukadana District, East Lampung Regency, from June to August 2016 with Mentari’s women farmer group as cooperator. The types of processed goat milk introduced are goat’s milk with spice flavoured, goat's milk ice cream with strawberry tasted, goat's milk ice cream with kweni tasted, and goat's milk caramel candy. The products of goat’s milk are tested on consumer preference and its counted breakeven price for each kind of product, so it is known how much the price of kind of processed goat’s milk if it want to commercialized. Observation parameters included, proximate analysis for fresh goat’s milk, consumer acceptance rate and break even price of each kind of product. Observation of consumer acceptance level is done by using hedonic scale (scale 1-5) from 20 panelists and breakeven price is calculated by comparing total production cost with yield produced. The collected data were analyzed statistically and if there was difference of the mean value was continued with DMRT test at 5% level. The results showed that the development of goat’s milk preparation is very pospective because goat’s milk has high protein content and low fat content so good for health; Processed goat’s milk produced introduced by the consumer, with a mean score> 3; The result of break even analysis shows that goat milk processing has prospect to be developed, because the price of its break even point is still reached by consumer that is: Rp.45.500, -/ liter goat’s milk spice flavoured; Rp. 61.267/liter goat's milk ice cream strawberry tasted, Rp.55.933, -/ liter goat's milk ice cream kweni tasted, and Rp. 1.479 /goat's milk caramel candy.
PENENTUAN KUALITAS BUAH NAGA (Hylocereus undatus) DENGAN METODE NON-DESTRUKTIF [Non-destructive Determination of Dragon Fruit (Hylocereus undatus) Quality]
Authors: Khuriyati Nafis , Fibriato Muh Bayu , Nugroho Darmawan Ari 
Published: October 2018

Sorting dragon fruit based on color, size, and physical defects using human senses does not adequately reflect the nutritional content of the fruit. Nutrient content in dragon fruit has been determined by injuring fruit (destructive). The objective of the research was to develop a non-destructive method based on color measurement to determine the quality of dragon fruit which includes texture, moisture content, total dissolved solids, and total acid. Non-destructive color measurement used Chromameter to predict fruit maturity. Based on the results of this fruit maturity prediction, dragon fruit quality was predicted by using a regression model between fruit maturity and each quality parameter. Dragon fruit from various variations of maturity was used as a sample to find out its quality changes, and a regression equation was formed between the maturity of fruit and fruit quality. The results showed that along with the increasing maturity of dragon fruit, color (La * b *), texture, moisture content, and total dissolved solids changed following a cubic regression model. Color component "b" (yellowness) has the strongest relationship to fruit maturity (R2 = 0.95). With the knowledge of fruit maturity based on these colors, the quality of dragon fruit could be determined through regression equations with results that were not significantly different from those with destructive methods, except total acid.