bluuebunny/crossref_metadata_2025_split huggingface dataset:
Using Web-Based, Group Communication Systems to Support Case Study Learning at a Distance
Authors: Anderson Terry , Rourke Liam 
Published: November 2016

<P class=abstract>This study explored the capacity of Web-based, group communication systems to support case-based teaching and learning. Eleven graduate students studying at a distance were divided into three groups to collaborate on a case study using either a synchronous voice, an asynchronous voice, or a synchronous text communication system. Participants kept a detailed log of the time they spent on various activities, wrote a 1,500-word reflection on their experience, and participated in a group interview. Analysis of these data reveals that each group supplemented the system that had been assigned to them with additional communication systems in order to complete the project. Each of these systems were used strategically: email was used to share files and arrange meetings, and synchronous voice systems were used to brainstorm and make decisions. Learning achievement was high across groups and students enjoyed collaborating with others on a concrete task. Keywords: Distance Education, Case-based Learning, Collaboration Software, Online Learning.</P>
<P>The evidence in favour of case-based teaching and learning continues to mount (cf. Lundeberg, Levin, and Harrington, 1999). One interesting facet of this research suggests that group discussions are the active ingredient of case study learning. For on-campus students this is simple to arrange, but where does it leave students who are studying at a distance? Case studies are often used in distance education, but traditionally they have been implemented in an independent mode, with students reading a problem-centred or exemplary narrative in order to contemplate its central issues. This type of case-based teaching omits what may be the most important part of case-based pedagogy.</P>
<P>Fortunately, a wide array of Web-based communication software exists that supports various types of communication at a distance, including text or voice, person-to-person or multi-person, and synchronous or asynchronous interaction. The relative effectiveness of these systems to support collaboration among students is an important issue to distance educators.</P>
Indicators of Support in Online Interaction
Authors: Fahy Patrick J. 
Published: November 2016

<P class=abstract>Peer-to-peer interaction using computer-mediated communication (CMC) would appear to be a promising source of timely and cost-effective student support, but little empirical evidence regarding actual participant support behaviour has been presented (Lee, 2000). This paper reports a study of the occurrence of 13 online strategies defined as &ldquo;supportive,&rdquo; according to the categorizations found in an instrument called the <I>Transcript Analysis Tool</I> (TAT). The corpus used in the study consisted of three transcripts produced by students (graduate degree and professional development diploma candidates) engaged in course-related CMC conferencing. Analysis of the transcripts generated by the three groups showed the following:</P>

<UL style="font-size:100%">
<LI>The support strategies most frequently used by the three groups were <I>referential statements</I> (statements which made reference to others&rsquo; previous comments; TAT type 2B), <I>signatures, greetings</I>, and <I>horizontal questions</I> (open-ended questions which invited negotiation of a plausible answer; TAT type 1B). </li>

<LI>There was some variability among the groups in the frequency of use of <I>referential statements, horizontal questions</I>, <I>emoticons</I>, and <I>invitations</I> to others. </li>

<LI>High- and low-support groups differed from each other in their use of referential statements, signatures, greetings, horizontal questions, rhetorical questions, and humour.</LI>
</UL>

<P class=abstract>As an examination of the social element of three communities of inquiry, the study described how members of these groups attempted to connect with one another interpersonally, using asynchronous conferencing, on topics related to the conceptual content of the courses. The paper concludes that while in this case the above behaviours were the means most often used to support and encourage interaction, further examination of online support behaviours and strategies is needed, especially in relation to valued outcomes such as persistence, greater motivation, less stress, and, ultimately, enhanced learning. </P>
From Cognitive Landscapes to Digital Hyperscapes
Authors: Bidarra Jose , Dias Ana 
Published: November 2016

<P>
The widespread diffusion of e-Learning in organizations has encouraged the discovery of more effective ways for conveying digital information to learners, for instance, via the commonly called Learning Management Systems (LMS). A problem that we have identified is that cognitive variables and pedagogical processes are rarely taken into consideration and sometimes are confused with the mere use by learners of “diversified” hypermedia resources. Within the context of widespread dissemination of multimedia content that has followed the emergence of massive information resources, we discuss the need for more powerful and effective learner-centered tools capable of handling all kinds of design configurations and learning objects.
</p>
<P class=abstract><B>Key Terms: </B>cognitive profiles, learning styles, mind mapping, multimedia and hypermedia content, hyperscapes, e-Learning, learning objects, Learning Management Systems (LMS).</P>
Kultúra- és nyelvspecifikus diskurzusjelölők a romani nyelvben
Authors: Lakatos Péter 
Published: November 2016

A tanulmány egy romani–magyar kétnyelvű közösség nyelvhasználatával foglalkozik, elsősorban a romani diskurzusjelölők funkcióit vizsgálja. Az elemzésekből kiderül, hogy a szoros értelemben vett kultúraspecifikus diskurzusjelölők (shun mo’shun shej, dikh mo’ dikh shej) olyan jelentéseket hordoznak, amelyek a beszélőközösség kultúrájának viselkedési normáit is szabályozzák a diskurzusban, de a nyelvhasználók ezeket a diskurzusjelölőket képesek rugalmasan a magyar nyelvbe is átemelni, megtartva jelentéstartalmuk nagy részét. Bizalmi viszonyt jelölnek mindkét nyelvben. A tanulmány arra is példát hoz, hogy az abisti, avo, amaj, noroko nyelvspecifikus diskurzusjelölők mindig valamilyen történésre vagy diskurzusbeli jelentéstartalomra utalva hangulatot jelölnek, és így vezetik be az adott mondanivalót. Ismerve jelentésüket, a hangsúly figyelmen kívül hagyásával is meghatározható, hogy éppen hitetlenkedést, meglepődést, félelmet vagy esetleg érdektelenséget fejeznek-e ki.
Reduction of Falls and Factors Affecting Falls a Year After Total Knee Arthroplasty in Elderly Patients with Severe Knee Osteoarthritis
Authors: Tsonga T. , Michalopoulou M. , Kapetanakis S. , Giovannopoulou E. , Malliou P. , Godolias G. , Soucacos P. 
Published: November 2016

Background:Total Knee Arthroplasty (TKA)1is a common surgical treatment for severe knee Osteoarthritis (OA)2, which generally improves pain, physical function, quality of life and possibly fall risk. Fall risk increases for older adults with severe knee OA; however it has not been studied extensively whether this parameter is improved after TKA.Objective:To investigate: a) the history and frequency of falls, including mechanism or causes of falls, injuries sustained from falls reported, activity during falling and location of falls and, b) the factors affecting falls, a year after TKA in elderly patients with severe knee OA.Patients and Method:An observational prospective longitudinal study of 68 patients (11 males and 57 females) was conducted. The frequency of falls was recorded every month after knee replacement for a year period. A year after the TKA patients completed self-administered questionnaires (SF-36, Womac, FOF, ABC, PASE) and were assessed in physical performance tests (TUG and BBS).Results:There was significant improvement in falls frequency (p<0.001), differentiation of falling status to the benefit of non fallers (p<0.001) and risk of serious injuries (p<0.001). The factors that affected falling status was history of falls (p<0.0005), fear of falls (p<0.017) and advanced age, marginally (p<0.097).Conclusion:TKA generally improved a lot of aspects in patients’ life. One of these was the reduction of fall risk, which always co-exists in this population and can cause devastating problems threatening the benefits of the procedure.
PENGEMBANGAN MULTIMEDIA PEMBELAJARAN KARTOGRAFI PADA JURUSAN PENDIDIKAN GEOGRAFI FAKULTAS ILMU SOSIAL UNY
Authors: Sariyono Kimpul Endro , Mukminan Mukminan 
Published: November 2016

Penelitian ini bertujuan: (1) menghasilkan multimedia pembelajaran kartografi dan (2) mengetahui kelayakan multimedia pembelajaran dari aspek materi, aspek tampilan dan kelayakan untuk pembelajaran. Penelitian ini merupakan penelitian dan pengembangan (research and development). Produk awal divalidasi oleh ahli materi dan ahli media kemudian diujicobakan. Subjek uji coba produk adalah mahasiswa Jurusan Pendidikan Geografi Fakultas Ilmu Sosial UNY. Data yang dikumpulkan dalam penelitian ini adalah data dari ahli materi, data ahli media, dan tanggapan mahasiswa terhadap daya tarik media. Instrumen pengumpulan data berupa lembar evaluasi untuk ahli materi dan ahli media, serta lembar angket untuk uji coba kelompok kecil dan uji coba lapangan. Analisis data menggunakan analisis deskriptif. Hasil penelitian ini adalah: (1) hasil pengembangan multimedia pembelajaran melalui tahap persiapan, desain, produksi, uji coba, dan revisi; 2) kualitas media ditinjau dari aspek materi termasuk kategori sangat baik; (3) kualitas media ditinjau dari aspek tampilan termasuk kategori baik; (4) tanggapan mahasiswa tentang daya tarik media termasuk kriteria sangat menarik; dan (5) evaluasi hasil belajar menunjukkan lebih dari 75% mahasiswa mampu menguasai kompetensi pembelajaran menggunakan multimedia yang dikembangkan.Kata kunci: kartografi, multimedia DEVELOPING COMPUTER-BASED INSTRUCTION MULTIMEDIA FOR CARTOGRAPHY AT GEOGRAPHY EDUCATION YOGYAKARTA STATE UNIVERSITYAbstractThis research aims: (1)to product multimedia for cartography; and (2)to reveal the quality of the developed instructional media viewed from the aspects of content, appearance, and attraction for instruction. This research is research and development. The initial product was validated by an expert in subject matter and an expert in media and then was trying out. The subject of product trials are students from the Department of Geography Education Faculty of Social Sciences Yogyakarta State University. The data were collected using an evaluation sheet for the subject matter expert, the media expert, and questionnaire sheet for the one-to-one try-out, the small group try-out, and the field try-out. The data were analyzed using the statistic descriptive technique. The research results show that: (1)the steps in developing computer-based multi media was in some stages, namely, need analysis, design, production, try-out, and revision; (2) the quality of the developed instructional media viewed from the content aspects is very good; (3) the quality of the developed instructional media in terms of the appearance aspects is good; (4) the quality of the developed instructional media in regard to the attraction aspects is interesting; and 5) result of study explain more than 75% of students competen to received the targets of study with this multimedia.Keywords: cartography, multimedia
Pengaruh Gigi Impaksi Molar Ketiga terhadap Ketebalan Angulus Mandibula Berdasarkan Jenis Kelamin
Authors: Poernomo Hendri 
Published: November 2016

Fraktur mandibula sering terjadi pada praktek kedokteran gigi. Fraktur biasanya terjadi di daerah angulus mandibula tepat di daerah yang terdapat gigi impaksi. Masalah yang ditimbulkan akibat fraktur mandibula, yaitu hilangnya keseimbangan, terputusnya komponen neurovascular dan cedera pada jaringan disekitar fraktur. Tujuan dari penelitian ini adalah untuk mengetahui adanya perbedaan ketebalan tulang angulus mandibula antara kelompok yang memiliki gigi impaksi dengan kelompok yang tidak memiliki gigi impaksi serta jenis kelamin berdasarkan radiografis. Jenis penelitian deskriptif analitik menggunakan 40 sampel foto rontgen panoramik. Hasil penelitian terdapat perbedaan rata-rata antara pasien yang memiliki gigi impaksi dan tanpa gigi impaksi yaitu 1,44. Pada pasien impaksi gigi molar ketiga menurut jenis kelaminmenunjukkan perbedaan rerata ketebalan angulus mandibula sebesar 1,19 pada laki-laki dan 1,16 pada perempuan serta pasien tanpa impaksi menunjukkan nilai rerata ketebalan angulus mandibula sebesar 1,48 pada laki-laki dan 1,40 pada perempuan. Berdasarkan perhitungan T-test terdapat perbedaan yang bermakna (ρ<0,05). Kesimpulan bahwa adanya perbedaan signifikan ketebalan angulus mandibula pada pasien dengan gigi impaksi molar ketiga rahang bawah dan kelompok pasien tanpa gigi impaksi molar ketiga rahang bawah, serta jenis kelamin. Effect of impacted teeth on thickness of the angle of mandible based on gender. Mandibular fractures often occur in dental practice. Fractures usually occur in the angle of the mandible within the area of the impacted tooth. Some problems that are caused by mandibular fractures area are, the loss of balance, the breaking of neurovascular components and injury to the tissue surrounding the fracture. The purpose of this study is to determine the differences in bone thickness of the angle of the mandible between the groups that have an impacted tooth with the group that does not have an impacted tooth with different gender based on radiographic. This analytic descriptive study used 40 samples of panoramic radiographs. The study results show that the average difference between patients that have impacted tooth with patients that do not have is 1,44. Patients with impacted third molar based on gender show an average difference of the thickness of mandibular angle of 1,19 for men and 1,16 for women and patients with no impaction show an average thickness of the mandibular angle of 1,48 for men and 1,40 for women. Based on T-test calculation, there is a significant difference (ρ <0.05). The conclusion of study is that there is significant differences in the thickness of the angle of the mandible based on group of patients with impacted mandibular third molar, with the group of patients without impacted mandibular third molar.
Autotranplantasi Caninus Maxilla pada Soket Incisivus Lateral Maxilla menggunakan Anestesi Lokal
Authors: Putra Adi Subekti , Widyastuti Maria Gorreti , Rahajoe Poerwati Soetji 
Published: November 2016

Autotranplantasi gigi sebagai pilihan utama mempunyai banyak keuntungan selama periode gigi bercampur karena berkontribusi untuk merangsang pertumbuhan tulang, hal ini pun tidak didapat pada implan gigi. Gigi donor terbaik untuk autotransplantasi adalah ketika perkembangan akar mencapai setengah atau sepertiga dari panjang total dengan apek terbuka lebar, dengan tingkat keberhasilan 94%, sedangkan dengan akar komplet tingkat keberhasilannya lebih rendah (84%) karena seringkali jaringan periodontal rusak saat pengambilan donor. Pada laporan kasus ini penulis melakukan autotransplantasi dengan menggunakan donor gigi yang mempunyai akar lengkap. Gigi embedded dimanfaatkan untuk menggantikan gigi caninus desidui yang mengalami rampan karies dengan autotransplantasi. Tujuan autotransplantasi pada kasus ini adalah menggantikan gigi caninus desidui yang rampan karies sehingga secara fungsi dan estetika menjadi lebih baik.Autotransplantation of Maxillary Canines in Lateral Incisor Socket Using Local Anesthetic. Autotransplantation as the primary option that has many benefits over a period of mixed dentition for contributing to stimulating bone growth; it is not obtained on dental implants. Autotransplantation donor tooth is best when root development reaches half or one-third of the total length with open apex, with a success rate of 94%. However in the complete root, the success rate is lower (84%) due to periodontal issues which are often damaged when making the donor. In this case report, the authors performed the autotransplantation using a whole root donor tooth. Embedded teeth were used to replace deciduous canine teeth with rampant caries. The aim of this case is to replace rampant caries teeth that are not anatomically perfect.
Opportunities for Fluorocarbons Interior Coating Technology in ASP Flooding EOR: Evaluation of Corrosion Protection and Drag Reduction
Authors: Wang Zhihua , Lin Xinyu , Zhang Lei , Zhong Huiying , Fan Meng , Yu Tianyu 
Published: November 2016

AbstractAlkali/surfactant/polymer (ASP) flooding technology has become an important way to enhance the oil recovery and improve the recoverable reserves in Daqing Oilfield. However, the problems of corrosion that surface facilities encounter with still remain very challenging in ASP flooding production, especially in the strong base (NaOH) fields. In this paper, the situation of corrosion in the ASP flooding surface system in Daqing Oilfield is surveyed, and several measures of anticorrosion operated in production are demonstrated. A program about coating the production facilities with fluorocarbons is proposed. The performance of the coating is tested, the nature of alkali and surfactant resistance is evaluated, and its mechanism of anticorrosion is explained. The drag reduction advantage of fluorocarbons interior coating is confirmed by conducting a series of comparison experiments. The procedure of the coating is optimized and validated with the actual operational data from a known ASP flooding pilot area in Daqing Oilfield.The surveys indicate that serious corrosion occurs in ASP solutions preparation tanks, injection system, gathering and disposal facilities of produced liquid. The defects such as bulging, damaging and falling away, appear frequently in the epoxy coatings which stand for the most traditional measure. There are many high-energy C-F bonds in fluorocarbon paint, and the corrosion resistance and self-cleaning of the coating with low surface energy are excellent after the film-forming. The performance parameters of adhesion, flexibility and impact strength determine that the coatings can resist chemical erosion and osmosis diffusion of alkali and surfactant solutions in different degrees. By reference to the uncoated and the epoxy coating flowlines, the drag reduction rate of ASP flooding produced liquid in fluorocarbon coating flowlines achieve 52.75% and 31.64% respectively in the same flow condition, and the effects impacted by temperature are negligible. Furthermore, the practice in strong base (NaOH) ASP flooding pilot area obtains satisfactory with the advisable procedure. This paper emphasizes the extension of fluorocarbon coating technology is promising in addressing the operational problems and the coating failures. The case study is beneficial to design another pattern-flood pilot and accelerate further application of ASP flooding.
Use of Advanced Mud Gas Chromatography for Reservoir Quality Prediction While Drilling
Authors: Dashti Jalal , Al-Awadi Mashari , Al-Ajmi Bader , Rao Sudhakar , Shoeibi Ahmad , Estarabadi Javad , Ferroni Gionata , Nadiminti Avataram 
Published: November 2016

Abstract
While drilling through a reservoir, a lot of valuable information can be obtained from mud logging to support formation evaluation. Field data will help wellsite geologists, petrophysicist and reservoir engineers to predict reservoir quality, fluid contacts and reservoir permeability based on formation gases detected while drilling. This study discusses some examples from exploratory wells that have recently been drilled in Kuwait. Gas readings were recorded while drilling through deep Jurassic formations to evaluate hydrocarbon content using Advanced Gas Chromatography. The primary components of the system utilized are: a constant volume gas extractor, a gas sample flow control system, and a high resolution chromatographic system. To interpret the findings Gas readings are monitored by a complex system which provides real-time continuous measurements of the concentration of formation gases from very light components such as methane, to heavy components such as C6, C7 and C8 hydrocarbon species, comprising n-hexane, n-heptane, n-octane, benzene and toluene. Formation gas is considered as the first indication of a reservoir's fluid characterization and reflects the extent of the productivity of the well. Geochemical ratios and equations can enhance the interpretation of field data and give the first indication of zones of interest that need further evaluation.
Dedicated flowmeter sensors (Coriolis) utilized to evaluate formation fractures while drilling. The Delta Flow trend versus time is characteristic of the type of losses and consequently of the downhole fractures.
Geochemical ratios are plotted against depth and lithology to determine fluid type, contacts, fractures and dolomitization. For this purpose Well-Site Geochemical Package services, including X-Ray Fluorescence (XRF) and X-Ray Diffraction (XRD) workflow at rig site was also applied in of the wells. The analysis is based on measuring major and minor chemical mineralogy and elements of the drilled cuttings. This has helped in better quantitative assessment of different facies such as limestone, dolomite, shale etc., and providing a better control on geological model update while drilling the well.
To take advantage of the field data, advanced mudlogging data are plotted on a depth log, which can be easily integrated with other data (post well data).
Transient IPR for Fractured Horizontal Wells in Niobrara Formation
Authors: Yuan Bin , Moghanloo Rouzbeh Ghanbarnezhad , Zheng Da 
Published: November 2016

AbstractThe dominate flow regime for multistage fractured wells in unconventional shale reservoirs is transient flow regime. Understanding the interplay between flow rates and the flowing pressures for different fracturing schemes and completions is critical knowledge required for production optimization. The well production can be optimized by adjusting the flowing bottom-hole pressure. The Inflow Performance Relationships (IPR) are based on the premise of pseudo-steady state flow regime that is inherently not applicable to transient flow; thus, this paper introduces a new empirical IPR model obtained by integrating a series of piece-wised pseudo-steady state flow regimes that occur as the drainage volume expands. The average reservoir pressure calculated within the dynamical drainage volume (DDV) at any given time is used to derive an IPR model.A computer code is developed to evaluate the evolution of DDV using the macroscopic material balance equation. Fluid and rock compressibilities are the only production mechanism. The computer code is used for ten wells in the Niobrara shale oil play. The size of the DDV, associated average reservoir pressure, and transient productivity index are calculated. This newly derived empirical IPR is capable of predicting production performanceIn practice, this paper provides an insight to understand the long-term transient flow regime and its impact on productivity of wells in shale plays. The method does not require comprehensive inputs, and can be used to optimize the design of multistage fractured wells.