bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Probabilistic Approach to Tight Gas Economic Evaluation: The Future of Argentina
Authors: Cervantes-Bravo R. J. , Ñaupari-Barzol H. , Palacios-Chun N. , Jimenez-Nieves E. T. , Magnelli D. , Huerta-Quiñones V. A. 
Published: May 2017

Abstract
Tight gas reservoir has potential to provide a significant contribution to meet the global energy demand. However, they involve technical and economic challenges for the commercialization that need to be addressed with the multidisciplinary integration of Geoscience, Engineering and Economics. Unconventional resource plays and tight gas reservoir, are generally characterized by lower geologic risk but higher commercial risk. For that reason, a precise understanding of the potential range can lead to the commercial success; this weighs on the economic evaluation process.
We will focus on local tight gas plays that differ in several aspects, especially in terms of the stage of commercial growth. Due to the large number of uncertainties, deterministic economic modeling provided results with low confidence and was considered as merely a scoping indication of commercial potential. Deterministic and single-point solutions are unable to provide a real check for the input assumptions, which typically leads to overly optimistic results. A better solution still needs to be found.
This paper transmits the consistent and systematic process employed in the evaluation of several tight gas plays, all softwares (e.g. Crystal Ball) tested, the vital role of multidisciplinary participation, iterative modeling efforts and conclusions. Thus, the generation of percentiles (P10, P50, and P90) for the economic indicators: NPV, IRR and Payout, through a probabilistic model that takes three scenarios in each input (Capex, Opex, Gas Price and Reserves); can yield to a more precise and sensible in return calculations of investments on an outlook, with the associated risk from a commercial point of view.
This case study was developed on a sectorial block of the Lajas Formation of the Neuquen Basin, with six wells in production (vertical wells 2000 – 2500 m), a GOIS of 129.22 BCF and a current recover factor estimated in 19 %. An optimum number of infill wells will be proposed with the aim to improve the recover factor higher than 35 % with and an incentive price of Gas Plus fixed at 7.5 US$/MMBTU from the National Government. Thus, the learning curve would be reduced and become to an energy source that enable to fulfill the future energy demand to a medium term for Argentina 2020 year, since the development of Vaca Muerta Shale Gas will have a long-term contribution.
Positive results are expected, which will be increased with the addition of each infill well of 4.2 % (5.38 BCF) in the EUR with a yield of investment (NPV/Investment) of 39 %.
Landscape Transformation Associated to the Development of Camisea Project and the Effectiveness of the Off Shore in Land Approach
Authors: Leunda G. , Dias G. , Mendoza E. , Capello N. 
Published: May 2017

Abstract

Objectives/Scope
The research presented herein was accomplished under the framework of the Camisea Project Biodiversity Monitoring Program, with the objective of assessing changes in land use and vegetation cover in Blocks 88 and 56, operated by Pluspetrol Peru Corp. The rate of recovery post intervention was also measured and recorded along a significant period of time (+ 10 years).

Methods, Procedures, Process
The area surveyed comprised approximately 247,000 ha for which satellite images (Landsat, CBERS2 and Aster) were used with mapping scales of 1:100,000 and 1:50,000. For further detail, a second stage using high resolution images (Ikonos, Quickbird, Wordview2 and aerial photography) was also performed.

Results, Observations, Conclusions
The results show that after 12 years of continuous operation the total cleared area within both blocks ranges between 0.13 and 0.20 %, with a tendency of remaining steady around the latter. This fluctuation is related with a dynamic of clearing and subsequent restoration works associated with the construction of project facilities, along with natural recovery. The research has provided, as well, data related with recovery rates of cleared areas, which range between 14 and 16 % per year.
Another important outcome of the study shows the relationship between the effect of activities directly associated with the Camisea Project and those conducted by third parties (government infrastructure, other extractive projects and native communities). Measured within a 5 year period, the deforestation rate of the Camisea Project tends to remain steady and has affected a small portion of the area (as previously informed, less than 0.2 %), whereas the surface deprived of vegetation by third parties increased 34 % during the 2011-2016 period.

Novel/Additive Information
Above all, the research clearly demonstrates the positive effects of the "offshore in land" strategy adopted by Pluspetrol in the early stages of the project. This avoided right of way clearance and road construction, requiring all logistics to be performed either aerial or fluvial. This has prevented both, unnecessary deforestation and, most important, the opening of new accesses for settlers that would push the agricultural frontier to an area which still remains an almost pristine rain forest.
Reducing Fault Reactivation Risk on Deepwater Drilling
Authors: Frydman M. , Holzberg B. , Pastor J. A. , Salies J. B. , Pedroso C. A. 
Published: May 2017

Abstract
Drilling in deepwater presents risks associated to fault reactivation, what includes severe drilling fluid losses, connection of different reservoirs and, in the worst case, connection of the reservoir to the sea floor, causing oil and gas seeps. Recent accidents along the Brazilian coast showed that such phenomena are real and associated risks should be evaluated before any well planning.
This work presents a method to identify and quantify risks of fault reactivation while drilling. An upper limit on the safe drilling window is proposed to account for these risks. The method also includes tridimensional stress analysis, where maps, slices and cubes with reactivations pressures over the faults are determined, what can be used to reduce risks by changing well positioning, casing points and mud weight plan.
The proposed method is based on two main pillars. The full 3D geomechanical characterization of the area, which is done through the 3D-Mechanical Earth Model, a consistent way to determine the stresses around faults; and a proper criterion to determine the potential risk of fault reactivation during drilling. For this, a criterion of slip tendency analysis based on frictional constrains is adopted.
The method can be applied under two methodologies. The first one represents the general case, where enhanced fault and in situ stresses characterizations are required. Through this approach, each fault plane is analyzed and more precise values of fault reactivation pressure are obtained. The second one is a simplification of the first one, and considers that all media is potentially faulted, where each potential fault is critically orientated with respect to the far field stress. This approach is recommended for exploratory or semi-exploratory scenarios, where faults are not very well mapped and main stresses directions are unknown.
A case study for a planning phase of a drilling campaign on a deepwater field located in Santos Basin, Brazil is presented. Fault reactivation risks were identified and quantified through the proposed method. Safe mud weight windows were determined accounting for fault reactivation pressures, which was valuable during well planning. Recommendations for casing points and mud weight plans could be done including fault reactivation risks. Examples of risk mitigation by avoiding problematic zones and by re-positioning planned wells were presented. Results showed that the proposed method is an important tool to identify, quantify and reduce fault reactivation risks while planning any drilling campaign.
The prevalence of temporomandibular disorders among a group of libyan dental students
Authors: Bugaighis I , Elgehani R , Orafi M , Elatrash A 
Published: May 2017

Abstract
Background: It has been reported that Tempro-Mandibular-disorders (TMD) is the most common orofacial pain source of non-dental origin. The aim of this cross-sectional observational study is to explore the prevalence of signs and symptoms of TMD among a group of dental students in Benghazi-Libya.
Methods: The examined group comprised 100 students [17 males and 83 females; mean age: 24.8±2.23 years. The assessment was undertaken following Helkimo's measures. The prevalence and severity of TMD was determined using a self-reported anamnestic questionnaire and clinical examination. Descriptive statistics was employed to explore the frequencies of the examined variables. Linear correlation coefficient was conducted between the reported symptoms and recorded signs and between the reported symptoms and the clinical dysfunction scores (CDS). The level of significance was set at P<0.05.
Results: A total of 37% of the students reported some level of TMD symptoms [32% mild (Ai1); 5% severe (AiII)]. On the other hand, majority of the students (93%) demonstrated a range of TMD signs [76% mild (DiI); 17% moderate (DiII)]. Although linear correlation coefficient between the reported symptoms (Ai) and the recorded signs (Di) (r=0.32) and between the reported symptoms (Ai) and the CDS (r=0.37) were low, they were statistically significant (P<0.05).
Conclusion: Mild to moderate prevalence of TMD appears to exist among Libyan dental students.
Tailoring cardiovascular risk assessment and prevention for women: One size does not fit all
Authors: Wenger Nanette 
Published: May 2017

[first paragraph of article]For many years, cardiovascular disease was considered predominantly a disease of men, despite the fact that more U.S. women than men died annually from cardiovascular illness.1 Because of this misperception of their cardiovascular risk, for many years women were underdiagnosed and undertreated, with consequent increases in cardiovascular morbidity, mortality, and disability. With recent appreciation of this historical gender disparity, clinical and epidemiological research studies have identified cardiovascular features specific to women, resulting in an improved spectrum of care. Although since 1984 more U.S. women than men died annually from cardiovascular disease, beginning in the year 2000 there was a sharp decline in cardiovascular mortality for women, indeed, more precipitous than that for men. Half of this favorable effect is considered due to improved preventive strategies and the remainder to improved management of recognized cardiovascular disease. In 2013, for the first time, more U.S. men than women died of cardiovascular disease and we are delighted to be in second place.
Influence evaluation of wake shedding on natural frequencies of marine propulsion shafts
Authors: Zou Donglin , Zhang Jianbo , Ta Na , Rao Zhushi 
Published: May 2017

The calculation of natural frequencies is very significant at the design phase of marine propulsion shafts. And added mass of propellers has high effect on natural frequencies. At present, the effect of wake shedding from the propeller’s trailing edge on added mass is unclear. Then their influence on propulsion shafts natural frequencies is also vague. So in this study, the influence of wake shedding on propellers added mass and propulsion shafts natural frequencies is evaluated. Our results show that first, for the first lateral natural frequency, the max relative error reaches up to 6.52 % if the wake shedding is ignored. So for the lateral vibration, the wake should be considered. Second for the first torsion natural frequency, the max relative error amounts to 5.10 % when the skew angle is 108 degrees. So for the torsion vibration, the wake should also be considered when the skew angle is large. Third, for the axial vibration, the influence of wake is little and may be ignored.
Analysis on the aerodynamic behavior and noises of the cross section of the cable tower for long-span bridges
Authors: Dong Fenghui 
Published: May 2017

Cable towers are an important aerodynamic noise source of long-span bridges. The flow effect of various parts of the cable tower on airflow will cause large aerodynamic noises and thus influence environments. This paper conducted on research on the cross-sectional structure of the cable tower of long-span bridges, built a computational model of aerodynamic noises for cable towers of long-span bridges with original rectangular cross section and improved cross section. The computational fluid dynamics was adopted to analyze the non-steady flow of cable towers, and the numerical value of aerodynamic noises was predicted based on Lighthill’s acoustic analogy. Then, acoustic BEM was also adopted to study radiation noises of cable towers in the far-field. Results showed that improved cable tower could reduce the dispersion degree of airflow and weaken Karman Vortex Street. Aerodynamic noises induced by cable towers with improved cross section mainly radiated in a direction perpendicular to airflow, and the directivity of noises was obvious. Sound pressure level (SPL) of aerodynamic noises of cable towers with improved cross section was 4.2 dBA less than that of initial rectangular cross section in the far-field, which showed obvious effect on noise reduction. In the meanwhile, this paper studied the mechanism of main frequency at various parts of cable towers with improved cross section and discussed the reason of noise reduction, whose research achievements could provide design basis for generation mechanism and reduction of aerodynamic noises of cable towers of long-span bridges.
Peningkatan Pengetahuan Dan Keterampilan Guru SD Muhammadiyah 4 Batu Dalam Mengelola Pembelajaran ABK melalui Lesson Study
Authors: Poerwanti Endang , Soenaryo Siti Fatimah , Restian Arina 
Published: May 2017

Anak-anak dengan kebutuhan khusus (ABK) yang dikenal sebagai anak-anak cacat, atau anak-anak yang luar biasa, anak-anak yaitu yang menyimpang secara signifikan dari kriteria normal, baik dari aspek fisik, psikologis, emosional dan sosial. Mulai tahun 2001, pemerintah mulai program pendidikan inklusif, pendidikan inklusif adalah untuk memasukkan anak-anak dengan kebutuhan khusus belajar bersama dengan anak normal di kelas dan sekolah reguler. Masalahnya, guru di sekolah reguler tidak berpendidikan dan dipersiapkan khusus untuk mengelola proses belajar mengajar untuk ABK. Masalah juga dialami oleh SD Muhammadiyah 4 Batu, untuk membantu memecahkan masalah tim FKIP menerapkan aktivitas Lesson Study untuk meningkatkan pengetahuan guru dan keterampilan dalam mengelola ABK pembelajaran individual Lesson study yang dilakukan dalam tiga siklus yang dikemas dalam tiga model pembelajaran; ABK belajar sendiri di kelas khusus, pengajaran dan pembelajaran di kelas reguler dan pengajaran dan pembelajaran ABK di kelas reguler dengan bantuan GPK. Setiap siklus terdiri dari beberapa kegiatan. Studi pelajaran terdiri dari empat kegiatan yang disingkat PDCA; P (rencana) atau perencanaan, D (lakukan) adalah pelaksanaan pembelajaran oleh seorang guru sebagai model dan diamati oleh guru lainnya, C (cek) merupakan cerminan dari perbaikan lebih lanjut proses pembelajaran, dan A (tindak) adalah tindak lanjut. Dari tiga tahapan pelaksanaan proses belajar mengajar ABK dapat memberikan manfaat bagi para guru untuk meningkatkan pemahaman dan keterampilan untuk mengelola pembelajaran untuk ABK. Melalui Lesson Study diharapkan ABK mendapatkan layanan yang tepat dan belajar yang optimal. Beberapa temuan dampak pada perilaku siswa di kelas adalah bahwa siswa dapat menerima keberadaan ABK di. Meskipun keterbatasan kelas fasilitas guru mendapatkan pengalaman berharga yang terkait dengan pengembangan pembelajaran melalui forum ABK Lesson Study. Jadi kebutuhan untuk pelaksanaan tindak lanjut di kelas lain. Bimbingan dan bantuan dari Universitas Muhammadiyah untuk pergi ke SD Muhammadiyah Batu untuk menjadi sekolah mandiri.
Implementasi Lesson Study Untuk Meningkatkan Pelaksanaan Pendekatan Scientific Guru IPA SMP Muhammadiyah 6 Kabupaten Malang
Authors: Chamisijatin Lise , Zaenab Siti , M.Si Sukarsono 
Published: May 2017

Proses pembelajaran pada Kurikulum 2013 untuk semua jenjang dilaksanakan dengan menggunakan pendekatan ilmiah (scientific approach). Pada pembelajaran IPA pendekatan scientific dapat diterapkan melalui keterampilan proses sains. Pendekatan scientific akan berhasil melalui penerapan keterampilan proses pada pembelajaran IPA yang disajikan dengan strategi dan metode yang tepat. Untuk itu perlu usaha guru dalam penerapannya. Hal ini bisa dilakukan dengan menggunakan kegiatan Lesson Study.Kegiatan ini bertujuan untuk pendampingan pembuatan perencanaan dan pelaksanaan Lesson Study dalam mengembangkan pemahaman dan pelaksanaan pendekatan scientific guru IPA SMP Muhammadiyah 6 Kabupaten Malang. Setelah kegiatan ini diharapkan guru IPA SMP Muhammadiyah 6 Kabupaten Malang dapat membuat perencanaan danpelaksanaan Lesson Study untuk meningkatkan pemahaman dan pelaksanaan pendekatan scientific. Pelaksanaan pengabdian masyarakat ini di SMP Muhammadiyah 6 Kabupaten Malang pada semester Ganjil 2014/2015. Kegiatan Pengabdian ini terdiri dari: (1) Diskusi Lesson Study. (2) Pendampingan dalam pembuatan perencanaan Lesson Study (3)Pendampingan dalam pelaksanaan Lesson Study. (4) Pendampingan dalam refleksi Lesson Study. (5) Pendampingan dalam tindak lanjut Lesson Study.Hasil Kegiatan Pengabdian di SMP Muhammadiyah 6 Kabupaten Malang adalah: Guru-guru IPA di SMP Muhammadiyah 6 Kabupaten Malang, yang pada awalnya belum memahami dan belum pernah melaksanakan kegiatan pembelajaran menggunakan Lesson Study, dengan pendampingan yang intensif akhirnya dapat menerapkan Lesson Studysebagai wahana untuk meningkatkan kapasitas penyelenggaraan pembelajaran IPA dengan menggunakan pendekatan scientific. Disamping itu, guru-guru IPA SMP Muhammadiyah 6 Kabupaten Malang dapat menyusun rencana pelaksanaan pembelajaran (RPP) yang mencerminkanpendekatan scientific, keterampilan untuk menyelenggarakan pembelajaran IPA yang menggunakan pendekatan scientific, dan dapat melakukan pengamatan pelaksanaan pembelajaran, serta dapat menemukan permasalahan pelaksanaan Lesson Study dan alternatif solusinya. Selain itu, bagi mahasiswa jurusan Pendidikan Biologi yang sedang melaksanakan PPL di SMP Muhammadiyah 6 Malang juga memperoleh pengalaman secara langsung penerapan Lesson studydalam pelaksanaan pembelajaran, karena mereka terlibat secara aktifdalam pembelajaran, baik sebagai guru model maupun sebagai observer.
Peningkatan Kemampuan Apresiasi Peserta Didik Pada Materi Upaya Pengendalian Penyimpangan Sosial Melalui Pembelajaran Model Batuk di Sekolah Menengah Pertama
Authors: Suhudi Muhammad 
Published: May 2017

Penelitian ini bertujuan untuk mengetahui peningkatan kemampuan apresiasi peserta didik melalui pembelajaran model batuk pada materi upaya pengendalian penyimpangan sosial di sekolah menengah pertama untuk Penelitian merupakan penelitian tindakan kelas yang dilakukan pada kelas VIII SMP Negeri 1 Tekung dengan jumlah peserta didik 35 peserta didik. Penelitian terdiri atas dua siklus yang meliputi perencanaan, pelaksanaan, pengamatan dan refleksi. Pengumpulan data dengan format pengamatan peserta didik, pengamatan guru, angket, dan kuesioner. Hasilnya, pembelajaran model batuk dapat meningkatkan kemampuan apresiasi peserta didik dalam materi upaya pengendalian penyimpangan sosial.
Analisis Kemampuan Penalaran Matematis Siswa Melalui Pendekatan Problem Posing di Kelas X IPA 1 SMA Negeri 9 Malang
Authors: Zaenab Siti 
Published: May 2017

Penelitian ini berawal dari guru masih cenderung menggunakan metode ceramah, siswa kurang diberi latihan tentang kemampuan penalaran matematis dalam membuat dan menyelesaikan sebuah permasalahan. Pendekatan Problem Posing merupakan pendekatan pembelajaran yang menuntut siswa agar mengembangkan kemampuan penalaran matematisnya dalam membuat soal dan menyelesaikan soal. Sehingga pendekatan yang digunakan dalam penelitian ini adalah Pendekatan Problem Posing. Hasil penelitian dari keterlaksanaan pembelajaran matematika melalui pendekatan Problem Posing yang dilakukan oleh guru dan siswa pada dua pertemuan terlaksana dengan baik. Dari hasil analisis siswa I,II,III,dan IV diperoleh rata-rata siswa tidak dapat menyajikan pernyataan matematika dalam bentuk diagram dengan benar.
Petunjuk Penulisan dan Template Jurnal Inovasi Pembelajaran (JINoP)
Authors: Template JINoP Petunjuk Penulisan Dan 
Published: May 2017

PETUNJUK BAGI CALON PENULIS Jurnal Inovasi Pembelajaran (JINoP)E-ISSN : 2460-08731. Artikel yang ditulis berdasarkan hasil penelitian pembelajaran di semua bidang studi dan jenjang pendidikan. Naskah diketik dengan program Microsoft Word dan huruf Times New Roman ukuran 12 point, dengan 1 spasi, dicetak pada kertas A4 dengan jumlah halaman 10-15. Naskah diserahkan dalam bentuk print-out sebanyak 1 eksemplar beserta soft-copy (file). File dapat dikirim ke e-mail: jinopfkip@umm.ac.id2. Nama penulis dicantumkan tanpa gelar akademik ditempatkan di bawah judul artikel, disertai lembaga asal dan alamat korespondensi (e-mail ). Dalam hal naskah ditulis oleh tim, penyunting hanya berhubungan dengan penulis utama atau penulis yang namanya tercantum pada urutan pertama.3. Artikel ditulis dalam bahasa Indonesia atau Inggris secara benar dengan mengikuti ketentuan dalam petunjuk penulisan artikel ilmiah. Judul artikel ditulis dengan huruf kapital di tengah-tengah dengan ukuran 14 font. Adapun subjudul ditulis mulai margin kiri lurus tanpa menggunakan penomoran. Sub-subjudul dibedakan atas dasar peringkat hurufnya dan dicetak tebal miring. Judul artikel dalam bahasa Indonesia tidak lebih dari 14 kata, sedangkan judul dalam bahasa Inggris tidak lebih dari 12 kata.
Desain Pembelajaran Statistika Menggunakan Konteks Mal di Kelas V
Authors: Surya Apriana 
Published: May 2017

AbstrakPenelitian ini bertujuan menghasilkan lintasan belajar untuk membantu siswa dalam pembelajaran statistika menggunakan konteks mal di kelas V. Penelitian ini berdasarkan PMRI yang dikaitkan dengan pembelajaran tematik integratif Kurikulum 2013. Metode yang digunakan dalam penelitian ini adalah design research type validation study yang bertujuan untuk membuktikan teori-teori pembelajaran. Penelitian ini dilaksanakan di SD Islam Az-Zahrah Palembang dengan melibatkan siswa kelas V yang berjumlah 24 siswa. Aktivitas-aktivitas pembelajaran yang dilakukan siswa meliputi: 1) membuat turus, 2) menggambar dan menyusun toko baju, 3) memotong dan menyambung batang, 4) menentukan banyak toko baju anak yang sering terdapat di setiap lantai mal, menata ulang susunan toko baju di setiap lantai mal, menentukan toko baju yang terbanyak dan paling sedikit di setiap lantai mal. Hasil dari penelitian ini menunjukkan bahwa melalui serangkaian aktivitas yang telah dilakukan membantu siswa dalam pembelajaran statistika. Kata kunci: statistika; mal; pendekatan PMRI; design research. AbstractThis research is used to help the fifth grade of elementary school statistic easily through mall conteks. It is based on PMRI which is connected to the learning integrative 2013 curriculum. It is used design research type validation study methodology to prove learning theories. This research involved 24 students os Az-Zahrah Palembang in fifth grade level. The students did some activities like (1) making tally (2) drawing and arranging the clothes store (3) cutting and connecting bar chart (4) deciding the clothes stores which is attended in every floor, re arranging the clothes stores every floor, deciding which mall is less and more every floor. And the result shown that by doing same activities above able to help the students in learning statistics. Key words: statistics; mall; PMRI approaching; design research.