bluuebunny/crossref_metadata_2025 huggingface dataset:
O poder de polícia como instrumento de aprimoramento do meio ambiente do trabalho
Authors: Gomes Magno Federici , Machado Moura Monteiro Thiago Loures
Published: July 2018

O problema central no ordenamento jurídico brasileiro, e em especial na tutela ambiental, reside na falta de efetividade. No presente artigo foi discutido o instituto do poder de polícia administrativo como um instrumento de efetivação da tutela específica do meio ambiente de trabalho sadio, para presentes e futuras gerações. Para tanto, foi abordado o conceito de meio ambiente do trabalho, os princípios aplicáveis ao caso e a normatividade advinda de convenções internacionais. Conferiu-se enfoque para verificar a adequação do poder de polícia para dar efetividade a uma tutela tão peculiar quanto a do meio ambiente do trabalho. A metodologia de pesquisa utilizada foi a teórico documental, de cunho qualitativo e técnica dedutiva, com instrumentos bibliográficos aliada a análise de jurisprudência. Os resultados da pesquisa apontam para uma releitura do poder de polícia, para o alcance desejado da tutela ambiental.
اللصوص وقطاع الطرق واثرهم في تعطيل النشاطات الاقتصادية في مدن المشرق الاسلامي( من القرن 3 -7 هـ/ 9-13م)
Authors: Obaid Taha Kh. , Hasan Idrees M.
Published: July 2018

الملخص

تعد اعمال اللصوص وقطع الطرق من اقذر الاعمال  التي حرمها الله سبحانه وتعالى، فقال في محكم التنزيل: ( والسارق والسارقة فاقطعوا ايديهما جزاءً بما كسبا نكالا من الله والله عزيز حكيم) ، وذلك لما لها من اثر سيء جدا في تعطيل الحياة الاقتصادية في المدن ، فضلا عن قيامهم بتسليب القوافل التجارية ، وقوافل الحجيج مما يشكل ضررا كبيرا ضد مصالح المسلمين في كل المناطق التي تتعرض لمثل هذه الاعمال. ونتيجة لهذه الاعمال التخريبية تنقطع التجارة وتتكدس البضائع في مناطق وفرتها ولا تصدر الى المناطق التي تحتاجها، كما تتضرر الدولة الاسلامية وتنقص وارداتها من ضرائب العشر التي تجنيها الدولة الاسلامية من الصادرات او الواردات، كما تتسبب اعمال اللصوصية في تدمير اقتصاد مدن القوافل ، التي يعتمد سكانها على التجارة، وبالتالي نلاحظ اثرها المدمر على كل اقتصاد البلدان الاسلامية، لذا توجب على الدول الاسلامية اعداد الجيوش للقضاء على اللصوص وقطاع الطرق،لتامين الطرق من هذه الاعمال اللصوصية. وغالبا ما كانت هذه الاعمال تتم اثناء ضعف الدولة العباسية او الامارات التابعة لها في البر والبحر مثل هجمات الاعراب على القوافل المختلفة وهجمات الزط او الميد في البحر الهندي،، ويستغل اللصوص وقطاع الطرق، الظروف السياسية التي تمر بها هذه الدولة ، وتنشط اعمال اللصوصية في حالة ضعف الدولة وتنتهي او تضمحل في اوقات قوة الدولة أَو عظمتها.
موقف العشائر من أمراء بهدينان في زاخو في القرن السادس عشر (دراسة في الوثائق العثمانية)
Authors: Hassan Nizar A.
Published: July 2018

تشكل العشيرة احدى الوحدات الاجتماعية المهمة في المجتمع الكوردي وكانت تشكل الهوية والانتماء الأول للشعب الكوردي خلال فترة طويلة من تاريخيه، وكثيراً ما تحولت هذه الوحدات الاجتماعية الى ما تشبه كيانات سياسية عندما اقدم افرادها الى الدخول الى حدث سياسي و هم يحملون هويتهم العشائرية.

تلقت العشائر الكوردية والحياة الاجتماعية في كوردستان باهتمام بالغ من قبل الباحثين من الكورد و الأجانب لاسيما المستشريق و الرحالة الغربيين الا ان هذا الاهتمام تركزت بشكل اساسي على القرن التاسع عشر وان المادة العلمية حول العشائر الكوردية في القرون الاولى من السيطرة العثمانية على كوردستان قليلة جداً ويعود السبب الرئيس وراء ذلك الى قلة المصادر الاصيلة عن التاريخ الكورد بشكل عام وان المصادر التي اهتمت بجوانب من التاريخ الكوردي ركزت بشكل اساسي على التاريخ السياسي و اهملت الجانب الاجتماعي منها وان الروايات القليلة الموجودة فقد وردت بشكل عرضي في سياق روايات سياسية.

تحاول هذه الدراسة القاء الضوء على عشائر زاخو و دورها في الحياة السياسية في المنطقة في فترة حساسة وهي القرن السادس عشر و تعتمد بشكل اساسي على الوثائق والسجلات العثمانية والمصادر الاصلية.
Piranti Bahasa dan Mistisime Jawa dalam Kumpulan Puisi Hujan Bulan Juni Karya Sapardi Djoko Damono
Authors: Widijanto dan Sumarlam Tjahjono
Published: July 2018

Kajian ini adalah ihtiar menganalisis bahasa sekaligus menafsirkan dan menjelajahi konteks sosial budaya puisi-puisi Sapardi Djoko Damono (SDD) yang terhimpun dalam kumpulan puisi Hujan Bulan Juni, diterbitkan Gramedia Pustaka Juni 2013. Pijakan awal kajian ini adalah stilistika dengan fokus menggali aspek-aspek kebahasaan seperti ragam bunyi, kata, simbol, imaji dan majas. Dalam kajian ini nampak pusi-puisi SDD didominasi suasana ketertekanan, keheningan, dan kefanaan dengan bersandar pada kekuatan cacphony, gaya paradaksol dengan mempertentangkan kata yang mempunyai dua sifat berbeda, menghadirkan pada diri pembacanya imaji yang membangun ruang-ruang misteri. Pemilihan kata dengan cermat dipilih dengan menggunakan natural symbol dan privat symbol, Puisi-puisi SDD mayoritas menggambarkan dunia misteri kesunyian yang dihadirkan sebagai sesuatu yang tidak ada( flow chart) yang ada hanya degup, suara, warna, dan ide hadir seperti sebuah bayang putih yang membaur dan terasa jauh. Dalam bingkai bahasa itu, di dalam puisi-puis SDD dapat dilacak jejak mistisime Jawa yang mempersoalkan renungan awal akhir (sangkan-paran), kefanaan, kematian dan keheningan khas Jawa (sonya ruri).
Struktur dan Corak Novel-Novel Jawa Pra Kemerdekaan
Authors: Supriyanto Teguh , Sudi Utami Esti
Published: July 2018

Struktur teks novel- novel Jawa Pra Kemerdekaan dibangun dari arkasemem kota –desa. Kota merupakan tempat yang ideal sementara desa tidak ideal. Dengan demikian, alur cerita umumnya memutar dari kota ke desa dan memutar kembali ke kota menuju ke arah yang ideal. Alur cerita dibangun melalui penerobosan medan semantis yang memenuhi ruang ruang artistik. Medan semantis novel novel tersebut umumnya dikonstruksi melalui pasangan oposisi bangsawan - rakyat, laki- perempuan, tampan/cantik-buruk, kaya–miskin. Bangsawan tinggal di kota. Mereka berada di istana serta rumah-rumah mewah. Sementara desa merupakan tempat para petani dan orang orang biasa bekerja keras untuk memenuhi kebutuhannya. Corak novel Jawa Pra Kemerdekaan umumnya istana sentris dengan gaya bahasa perbandingan seperti metafora dan personifikasi. Romantisisme menjadi corak yang menonjol dengan sebaran ideologi yang berorientasi feodalistik dan romantik.
Magical Realism-Like in Shakespeare's A Midsummer Night's Dream (Serupa Realisme Magis dalam “A Midsummer Night's Dream” karya Shakespeare)
Authors: Prasetyohadi Dio Catur , Pujiati Hat , Astutiningsih Irana
Published: July 2018

This article uses concepts of magical realism by Wendy B. Faris to analyze Shakespeare's A Midsummer Night's Dream. We analyze elements of magical realism of the work in mapping discourses between the text and the real life. The chosen material object that published earlier than the theory we chose make this work contributes to describe the trace of the civilization development; event of in-betweeness of human consciousness. However, we have found that A Midsummer Night’s Dream is only a magical realism-like mode, since realism is dominant in the text as the trace of modernity. Meanwhile, the characteristics of Magical Realism that is postulated by Faris is in-between realism and fantasy as a trace of transition era; modern to postmodern. Abstrak: Artikel ini menggunakan konsep-konsep realism magis oleh Wendy B. Faris untuk menganalisis “A Midsummer Night’s Dream” karya Shakespeare.  Kami menganalisis elemen-elemen realism magis yang ada dalam karya untuk memetakan wacana-wacana yang ada antara teks dan kenyataan. Pemilihan objek materi yang telah dipublikasi lebih awal dari kelahiran teori yangkami pilih ini berkontribusi untuk menjelaskan jejak perkembanan peradaban Kebudayaan; peristiwa keberantaraan pada kesadaran manusia. Namun demikian, kami menemukan bahwa “A Midsummer Night’s Dream” hanyalah moda tulisan Serupa Realisme Magis, karena dominan teks lebih pada realisme yang merupakan jejak dari modernitas. Sementara syarat realism magis yang ditawarkan Faris adalah keberantaraan realisme dan fantasi sebagai jejak era transisi modern menuju postmodern.
INDIRECT MEASUREMENT METHODOLOGY OF CARGO WEIGHT LIFTED BY THE EXCAVATOR IN THE CRANE MODE
Authors: Korytov M. S. , Kanin I. K.
Published: July 2018

Introduction.To solve the indirect measurement problem of the cargo weight lifted by the excavator in crane mode the authors propose the specific method and develop mathematical model according to the indications of hydraulic fluid pressure sensors in the piston and rod cavities of boom lifting cylinders. Moreover, the signals from the angle sensor of the boom and the handle relative to the gravity horizon are used, the roll and pitch sensors of the rotary column of the excavator relative to the gravity horizon are additionally applied.

Materials and methods. As initial data of the indirect measurement method of cargo mass, constant design parameters, constant masses of moving links are used, such as booms with handle hydraulic cylinder, handles with bucket hydraulic cylinder and bucket turning mechanism, bucket weight. In addition, constant linear number and angular machine dimensions are included in the investigation. To obtain analytical formulas of the method, the method of homogeneous coordinates is applied, as well as the method of direct analytical inference.

Results.The developed design scheme of the method is presented. As a result, the position of the excavator crane is described in the right-hand rectangular coordinate system. Moreover, the technique of indirect measurement of cargo mass according to the indications of hydraulic fluid pressure sensors in the form of formulae linear sequence is presented.

Discussion and conclusion. The accuracy of the developed method was estimated by comparison with the results of the full-scale experiment. The relative reduced measurement error in the range of boom angles’ measurement and the crane-excavator handle was less than ten percent. Therefore, the technique merits are its simplicity, as well as record of the roll and pitch angles of the crane-excavator turntable element.
MATHEMATICAL MODEL OF THE ORGANIZATION OF PASSENGERS’ TRANSPORTATION IN STOPPING-TRANS-RELOCATION POINTS WITH A MULTIPLE CHANGE OF PASSENGER TRAFFIC
Authors: Arslanov M. A. , Minatullaev Sh. M. , Filippov A. A.
Published: July 2018

Introduction. The article concentrates on the mathematical modeling features of the organization of passengers’ transportations by motor transport in stop-transfer point (STP) with the multiple change of passenger traffic, which is characteristic for resort municipal formations, and also at the organization of sports, cultural and other mass actions.

Materials and methods. Materials are presented and a mathematical model is developed, based on the formalization of the STP functioning, as an infrastructural object intended for realization of the transportation process by various types of passenger transport. In addition, compliance with the conditions of the rolling stock rhythmicity on the STP is considered as the basic operating condition.

Results. Consequently, the problem of finding the optimal structure and number of bus transport substation units for the STP functioning parameters and the condition for full and timely development of the repeatedly changing passenger flows in it is solved.

Discussion and conclusions. The results of mathematical modeling of passengers’ transportations by motor transport allow estimating parameters of functioning of STP and efficiency of management in the conditions of repeatedly changing passenger flows. Therefore, the involvement of additional carriers, flexible planning of routes and schedules according to the regularity of bus traffic, the rhythm of the buses interaction and other types of passenger transport interaction in the STP during peak periods of loading, which ultimately ensures the efficiency and quality of transport services to the population, are considered as control actions.
ASSESSMENT OF IMPORTANCE OF WORKING LIFE QUALITY ELEMENTS WHILE LABOR EFFICIENCY RESEARCH OF INDUSTRIAL WORKERS
Authors: Mizya M. S. , Tevs E. P.
Published: July 2018

Introduction. The article is devoted to analysis of the indicators’ dynamic that characterizes the quality of working life level in the Russian industrial sector. The aim of research is to identify and assess the influence of working life quality on economic efficiency of labor.

Methods. The system of indicators for the period from 2005 to 2015 is determined on the basis of the analysis of existing assessment methods of working life quality and on official statistics data, which reflects the main elements of working life quality. Therefore, the most significant indicators of working life elements in terms of labor efficiency are determined by means of correlation analysis.

Results. It is revealed that social guarantees, decent wages and safe working conditions, i.e. objective characteristics of working life quality, have the greatest impact on labor efficiency. As a result, the subjective characteristics such as job satisfaction and opportunities for self-expression and selfrealization, despite the long period of the market economy development, continue to play a secondary role. The demonstrated problem confirms the fact that the main block of working life quality for industrial workers is not fully ensured and is deterrent to the growth of labor efficiency as a socio-economic category.

Discussion and conclusions. The results of this research indicate the availability of reserves to improve labor efficiency through the usage of modern methods of production organization to ensure economic conditions of decent work of industrial workers.
Educación para la paz integral - Memoria, interculturalidad y decolonialidad
Authors: Capera Figueroa José Javier
Published: July 2018

Sin resumen.
PROFIL KUALITAS LITERASI SAINS SISWA SMP SE-KABUPATEN PATI
Authors: Naturasari Hikmah , Roshayanti Fenny , Nurwahyunani Atip
Published: July 2018

ABSTRACTThis research is motivated by the low achievement of sciencem literacy of Indonesian students in the participation of the study of The Programe for International Student Assessment (PISA) held every three years by The Organization for Economic Co-operation and Development (OECD). This study aims to determine the quality of science literacy profile of junior high school students. The sample amounted to 356 students of SMP class IX, taken using proportionate stativeied random sampling technique. The Method is test and interview. The tests given using questions obtained from the OECD published PISA issue were published in 2009 specifically for matters related to science content. The results showed that the Literacy Quality of Science Profile of Junior High School Students in Pati Regency belong to low category with percentage of 55%. In the category of moderate percentage obtained by 45% and no students who fall into the high category. As for the achievement of the value of each level, the highest ability of students in answering science literacy questions in the level 1 questions with a total of 49.43 moderate categorized, and the lowest ability of students in answering the questions of science literacy is in level questions 6th with a total of 13.48 is low categorized. The conclusion is the quality of science literacy profile of junior high school students in Pati District is low. Keywords: Profil Quality, Science Literation, SMP Student, ABSTRAKPenelitian ini dilatarbelakangi oleh rendahnya capaian literasi sains siswa Indonesia pada partisipasi studi The programe for International Student Assessment (PISA) yang diselenggarakan setiap tiga tahun sekali oleh The Organization for Economic Co-operation and Development (OECD). Penelitian ini bertujuan untuk mengetahui profil kualitas literasi sains siswa SMP se-Kabupaten Pati. Sampel dalam penelitian ini berjumlah 356 siswa SMP kelas IX se-Kabupaten Pati yang diambil dengan menggunakan teknik proportionate statified random sampling. Metode pengambilan data menggunakan metode tes dan wawancara. Tes yang diberikan menggunakan soal PISA yang dipublikasikan oleh OECD diterbitkan tahun 2009 khusus untuk soal-soal yang berkaitan dengan konten sains, serta sudah diterjemahkan ke dalam Bahasa Indonesia. Hasil penelitian menunjukkan bahwa Profil Kualitas Literasi Sains Siswa SMP se-Kabupaten Pati tergolong dalam kategori rendah dengan persentase sebesar 55%. Pada  kategori sedang diperoleh persentase sebesar 45% dan tidak ada siswa yang masuk dalam kategori tinggi. Pencapaian nilai setiap levelnya, kemampuan tertinggi siswa dalam menjawab soal literasi sains terdapat pada soal level 1 dengan jumlah nilai 49,43 berkategori sedang, dan kemampuan terendah siswa dalam menjawab soal literasi sains terdapat pada soal level 6 dengan jumlah nilai 13,48 berkategori rendah. Sehingga disimpulkan bahwa profil kualitas literasi sains siswa SMP se-Kabupaten Pati tergolong rendah. Kata Kunci: profil kualitas, literasi sains, siswa SMP
Profit Motive, Stakeholder Needs and Economic Dimension of Corporate Social Responsibility: Analysis on The Moderating Role of Religiosity
Authors: Hamidu Aminu Ahmadu , Haron Md. Harashid , Amran Azlan
Published: July 2018

Economic dimension of corporate social responsibility (CSR) represent the main aim of establishing all forms of business organizations. The outcome from all transactions translate into the process of attaining continuity, growth, satisfactory returns, maximization of shareholders wealth and provision of goods and services to the community. Achievement of all these goals depends on how managers are able to perfect the profit motive objective and satisfy the needs of all stakeholders. A total of 164 respondents who are the managers responsible for decision making on all corporate social responsibility activities were engaged in answering the questionnaire for this study. The managers were representing different sub sectors of the Nigerian financial sector. A statistical analysis on the data was done by using the partial least square approach (PLS-SEM). Results from the analysis revealed that both profit motive and stakeholder needs are positively related with the economic dimension of CSR. Religiosity of managers is also positively related with ability of managers to attain economic responsibilities they were employed to achieve. With the role of religiosity as a significant moderating factor managers are expected to align CSR activities with accepted religious values that instills hard work, trust and assistance to stakeholders to fulfill the overall economic dimension of corporate social responsibility.
Environmental Reporting Practices of Top Public Listed Companies: Analyzing Pre-Post Corporate Social Responsibility Framework
Authors: Yusoff Haslinda , Kamaruddin Siti Hazwani , Ghani Erlane K.
Published: July 2018

This study examines the environmental reporting practices of the top public listed companies in Malaysia, before and after the introduction of the Corporate Social Responsibility Framework. Specifically, this study examines the level of extensiveness of environmental disclosures among the top public listed companies. In addition, this study identifies the factors that influence the environmental reporting practices of the top public listed companies. The factors examined in this study include industry sector, ISO certification, size and profitability. Using content analysis on the corporate annual reports of 50 top publicly listed companies, this study shows that greater environmental reporting practices was found in the post-period of the framework. This study also shows that the factors influencing environmental reporting practices among the top public listed companies vary between the pre-period and the post-period. The findings of this study implicate that regulatory initiatives represent an influential factor in promoting environmental accountability via reporting practices among the companies in Malaysia.
Robot Assisted Transforaminal Percutaneous Endoscopic Lumbar Discectomy
Authors: Wang Han , Liu Yajun , Fan Mingxing , Jiang Jile , Tian Wei
Published: July 2018

Percutaneous endoscopic spine surgery is popular in recent years because of its minimally invasive manner. After transforaminal approach presented by Kambin in the late 1980s, many specific methods were described to establish an accurate and feasible approach to the target disc. Among them, the techniques of Yeung[1], Hoogland[2] and Ruetten[3] are the most famous ones and each has different design and indications. However, no consensus have been made because of the debated clinical results, steep learning curves, and pitfalls that exist in each approach. Guide needle insertion and subsequent working channel building remain a challenging procedure. Poor accuracy may lead to poor safety as the nerve root and dura are at risk. Many surgeons attempted to optimize the procedure, but few researches have integrated computer-assisted navigation with tPELD (transforaminal percutaneous endoscopic lumbar discectomy). It is time to bring our surgical robot into the field.
The accuracy and safety of patient-specific 3D printing screws insertion templates based on external fixation for pelvic screw insertion
Authors: Tao Xing-Guang , Liang Hui , Pan Fu-Gen , Zhou Kai Hua
Published: July 2018

Objective: To explore the feasibility and accuracy of the new technique of patient-specific 3D printing screws insertion template in the pelvic fractures.

Methods: From January to June in 2017, 6 patients with pelvic fractures were treated by this new type of screw guide templates. Pubis screws and sacroiliac screws were inserted. The patients with external fixation were examined by CT scan before surgery. The patients-specific 3D printing templates were made with photosensitive resin by a 3D printing system to ensure the trajectory of the screws. The templates were sterilized by ethylene oxide and used during surgery. The accuracy and safety of the templates were evaluated by CT scans after surgery.

Results: Totally 10 screws were inserted, including 5 pubis screws and 5 sacroiliac screws. The average surgical time for pubis screw was 12.7 min/screw, and 9.2 min/screw for sacroiliac screw. The average time of X-ray exposure was 13.3±3.6s/screw for public screw and 9.6±4.5s/screw for sacroiliac screw. All the screws were inserted in the trajectory as preoperative design and the screw axis deviation was 1.60 ± 0.2mm and 2 ± 0.3 degrees angle deviation by preoperative and postoperative CT verification. Blood loss during the surgery was minimal (12.2ml/screw). Vascular of neurologic complications or injuries did not happen. And no infection, broken screws or screw pullout occurred.

ConculsionThe patient-specific screw guide template based on the external fixation can insert the screw accurately and safely with very small incision. This technique is a new kind of intraoperative screw navigations. The patient-specific 3D printing screw insertion template was user-frindly, moderate cost and enabled a radiation-reduced pelvic screw insertion.
Detection and Grading of Knee Joint Cartilage Defect using Multi-Class Classification in Vibroarthrography
Authors: Befrui Nima , Elsner Jens , Flesser Achim , Huvanandana Jacqueline , Jarrousse Oussama , Le Tuan Nam , Müller Marcus , Schulze Walther H. W. , Taing Stefan , Weidert Simon
Published: July 2018

Vibroarthrography describes the detection of joint pathologies by analysis of vibrations emitted during joint movement. In our study, 30 healthy volunteers and 39 patients with various degrees of chondromalacia or osteoarthritis were selected and accelerometers and piezoelectric sensors were placed on prominent bone structures of patients’ knee joints (patella, lateral and medial tibial plateau) in order to measure the structure-borne noise during active extension and flexion of the joint. After semi-automatic signal segmentation had been applied to isolate flexion and extension cycles, features based on relative high-frequency components were generated. Using machine learning with a linear support vector machine, these signals were classified as healthy, exhibiting chondromalacia °II-IV or osteoarthritis. 84% of healthy subjects were identified correctly, while the classification accuracy for individual stages of chondromalacia or osteoarthritis ranged from 11% (CM °II) to 50% (CM °III). In order to make results easily interpretable without resorting to machine learning techniques, we propose a normalized score between 0 and 1 and show that this "v-score" for flexion and extension significantly correlates with the achieved multi-class classification. Vibroarthrography may qualify as potent screening tool for the detection and grading of joint cartilage defects and aid physicians in the choice and estimation of urgency of further diagnostic and therapeutic decisions.
Why did Anterior Dislocation Occur During Dandling her Baby in front of her in Standing Position after THA?
Authors: Tokunaga Kunihiko , Hsu Juliana , Fischer Maximilian C. M. , Okamoto Masashi , Radermacher Klaus
Published: July 2018

We experienced an anterior dislocation of a lady after THA in standing position during dandling her baby in front of her. The orientations of acetabular cup and femoral stem, measured by 3D image analysis and post-operative CT images, were within the so called safe zone. As it happened, the moment of this dislocation was captured in a smart phone movie. Surface 3D models were created from pre- and post-operative CT images. The pelvic sagittal tilt angle was measured using pre-operative EOS image in standing position and landmark-based 2D/3D registration. The pelvic tilt and the post-operative THA parameters served as input to calculate the cup orientation relative to the prosthetic ROM-based target zone, the bone stock-based target zone, and maximal amount of external rotation until “bony impingement”. The prosthetic ROM- based target zone algorithm calculates impingement free cup orientations dependent on the stem orientation, neck shaft angle and pelvic orientation. The system clearly showed that impingements occurred during the slight hip external rotation and leaning back motions of the patient in standing position as shown in the smart phone movie. This system demonstrated the neck shaft angle of the stem should be reduced from 135° to 130°, and the stem antetorsion should be reduced from 35° to 20° to get optimum target zone without impingements. In addition, the cup should be placed at 6mm posteriorly to get maximum bony coverage. This patient-specific target zone calculation is a powerful tool to decide the optimum orientation and position of THA implants.
Ten to fifteen year survival of navigation-assisted total knee arthroplasty.
Authors: Jenny Jean-Yves , Saragaglia Dominique
Published: July 2018

The survival rate of navigation-assisted total knee arthroplasty when mechanical revision was considered as the end-point was 98% after 10 years and 96% after 15 years. These figures compares favorably with previously published literature about conventional implantation. Longer follow-up is required to prove superiority of any technique.
Navigation improves the ten to fifteen year survival rate after total knee arthroplasty for severe coronal deformation. A case-control French multicentric nationwide study.
Authors: Jenny Jean-Yves , Saragaglia Dominique
Published: July 2018

The survival rate of navigation-assisted total knee arthroplasty was superior to conventionally implanted after 12 years for knees with initial severe coronal deformation when mechanical revision was considered as the end-point. Longer follow- up is required to prove superiority of any technique.
Proximal femoral osteochondroma excision aided by computer navigation: surgical technique and case series
Authors: Sun Yang , Chan Chungmin , Niu Xiaohui
Published: July 2018

Purpose:

Surgical excision is frequently indicated for symptomatic osteochondroma of the proximal femur. The purpose of this study was to describe our experience with computer-navigation aided excision of osteochondromata in the proximal femur and the outcomes of this technique.

Methods:

Seven patients who underwent computer-navigation aided excision of proximal femoral osteochondromata were studied. Computed tomography images of each patient's proximal femur and a size-matched normal proximal femur were fused on a commercially available navigation planning software. The intended resection margins were then plotted using the normal proximal femur as a template, and the plan executed using intra-operative navigation guidance. Patients were followed clinically, radiographically and with functional scoring using the Musculoskeletal Tumor Society (MSTS) score.

Results:

Five patients had isolated exostoses, while two had tumors associated with multiple hereditary exostoses. A posterolateral approach was used for tumors projecting posteriorly or posteromedially, while an anterior approach was used for anteriorly and medially based tumors. Prophylactic fixation was performed in the four patients that required anterior approaches. Mean duration of surgery was 196 minutes. No intraoperative fractures or post-operative complications occurred, and no secondary procedures were necessary. The mean MSTS score at a mean follow up of 13.1 months was 28.8 (out of a maximum of 30).

Conclusions:

This series is the first report of this novel application of computer-navigation, and demonstrates favorable post-operative functional scores and a low complication rate. It demonstrates the applicability, safety and efficacy of this technique, and is particularly applicable in resections involving particularly large tumors that obscure anatomical landmarks and in patients with associated proximal femoral deformity.
Coronal Knee Laxity Measured During Computer-Assisted Total Knee Arthroplasty
Authors: Dai Yifei , Bras Guillaume , Liu David
Published: July 2018

This observational study on fifty-six patients presents the coronal knee angular laxity measured during computer-assisted total knee arthroplasty. Varus/valgus knee laxity was assessed at extension, mid-flexion, and high flexion, and compared between arthritic knees and knees following trial TKA implantation. The data represented soft tissue laxity under surgical reality and may be used to further understand the clinical implications of intraoperative soft-tissue management. The findings highlight the potential for CAOS to accurately manage soft tissue balance in addition to bony cuts and overall alignment.
Automatic Scan Plane Identification from 2D Ultrasound for Pedicle Screw Guidance
Authors: Qi Xiao , Vora Nilay , Riera Luis , Sarangi Amrut , Youssef George , Vives Michael , Hacihaliloglu Ilker
Published: July 2018

In order to reduce the total amount of radiation exposure and provide real-time guidance ultrasound has been incorporated as a potential intra-operative imaging modality into various orthopedic procedures. However, high levels of noise, various imaging artifacts, and bone boundaries appearing several millimeters in thickness hinder the success of ultrasound as an alternative imaging modality in assisting orthopedic surgery procedures. Additional difficulties are also encountered during manual operation of the ultrasound transducer during image acquisition. In this work, we proposed a combination of novel scan plane identification method, based on convolutional neural networks, and bone surface localization method. The bone surface localization approach utilizes both local phase information, a combination of three different local image phase information and signal transmission map obtained from an L1 norm based contextual regularization method. The proposed network was utilized on two different US systems and to identify five different scan planes. Validation was performed on scans obtained from 16 volunteers. The correct scan plane identification rate of over 93% has been obtained. Validation against expert segmentation achieved a mean vertebra surface localization error of 0.42 mm.
Accuracy and reliability of full-length lower limb radiographs in the measurement of coronal alignment
Authors: Dai Yifei , Peterson Matthew , Wurm Katharine
Published: July 2018

This study investigated the accuracy and reliability of using full-length lower limb radiographs to measure alignment outcomes of computer-assisted total knee arthroplasty. Simulated radiographs were created from cadaveric whole leg CT scans. Three analysts performed repeated measurement of the hip-knee-ankle (HKA) angle, blinded to the ID of the subject and image repetition. In addition, simulated radiographs with internal- /external- limb rotation were measured to assess sensitivity of the measurements. The result demonstrated high accuracy and reliability of the measurement, with low sensitivity to limb rotation. The findings supported the use of full-length lower limb radiographs to measure clinical outcomes in HKA.
Computer-assisted extra-articular distal radius osteotomies using patient-specific surgical guides
Authors: Shishkin Vasilii , Golubev Valeriy
Published: July 2018

Malunions of the distal radius are often treated with correction osteotomies, which can be challenging to perform.

In this report, 23 patients with symptomatic distal radius malunions were treated using 3D printed patient-specific surgical guides to facilitate surgery. Patients were compared with a control group of 23 patients that underwent similar surgery with a conventional x-ray planning approach.

Postoperatively all patients in the computer-assisted group showed recovery of ROM, with no anatomical abnormalities on x-ray examination. 6 patients in the conventional planning group had reduced ROM with a residual volar tilt on x-ray images.

Computer-assisted planning with the use of 3D printed patient-specific surgical guides enhances results of corrective osteotomies of distal radius malunions.
Positioning Accuracy Test of A Self-Developed 2D C-arm Image Based Robotic Navigation System for Spine Surgery
Authors: Tseng Ching Shiow , Wu Dian Shiu , Chen Kuan-Chun , Chang Chih Ju
Published: July 2018

This manuscript presents positioning accuracy test of a self-development 2D C-arm image based robotic navigation system for assisting the surgeon to implant pedicle screws to the planned locations. The main difference of the system to the ROSA Spine system or Mazor X system is the use of 2D C-arm images instead of 3D C-arm (O-arm) or CT images, which is because 2D C-arm is more popular and available in most hospitals. The surgeon uses a positioning probe to plan drill paths directly on the patient’s back, which are projected and shown on the computer-displayed C-arm AP and LA images so that the surgeon can make sure the correction of implantation path. The spatial position and orientation of the implantation path are also input to the robot controller to enable the robot to move automatically the guiding device to align with the planned path. Then the surgeon can easily drill and implant pedicle screw into the pedicle by following the guiding sleeve. The positioning results of phantom experiment indicate that the average distance error of probe tip between planned and guided paths within the pedicle is 1.2 + 0.3mm and the average direction error between the two paths is 0.4 + 0.1o.
Method of auto-calibration and auto-registration of an intra-operative 3D imaging system integrated with navigation
Authors: Lavallee Stephane , van Beek Laurence , Armand David , Pierre Arnaud , Sledge John , Jenis Lou , Tonetti Jérôme
Published: July 2018

This paper describes novel methods of auto-calibration and auto-registration of 3D imaging and navigation, implemented in a fully integrated device made of a motorized C-arm and a navigation system. Preliminary results are presented. Benefits in terms of saved time, increased accuracy, reasonable x-ray dose, and surgeon satisfaction are reported.
Quantification of impingement-free range-of-motion in reverse shoulder arthroplasty planning
Authors: Plessers Katrien , Wirix-Speetjens Roel , Jonkers Ilse , Debeer Philippe , Vander Sloten Jos
Published: July 2018

Glenoid implant position and scapula shape affect the impingement-free range-of-motion (ROM) of a patient's glenohumeral joint. Currently, methods to evaluate the impingement-free ROM during preoperative planning do not result in one overall score, which is required for an objective optimization of the implant position. Therefore, our study aims to quantify the impingement-free ROM so that surgeons can easily compare the result for various implant positions.

250 virtual shapes from a healthy scapula statistical shape model (SSM) were virtually implanted with a reverse glenoid implant in diverse positions. The impingement-free ROM was visualised on a 2D polar plot and quantified based on healthy kinematic motion data.

ROM scores for a neutral implant position resulted in a mean value of 0.84 +/- 0.06. A lateral, inferior and posterior implant position and a negative shape coefficient in the first SSM mode improved the mean ROM score. The impact of implant position and scapula shape was also visible in the 2D polar plots.

Hence, the defined ROM score was sensitive to implant position and scapula shape. A lateral, inferior and posterior implant position resulted in a better ROM, which agrees with many studies in literature. We conclude that the ROM score proposed in this study agrees well with what has been published in literature and is therefore considered as a suitable candidate to objectively evaluate and improve an implant plan during preoperative planning.
Navigation improves the ten to fifteen year survival rate after mobile bearing total knee arthroplasty. A French multicentric nationwide study.
Authors: Jenny Jean-Yves , Saragaglia Dominique
Published: July 2018

The survival rate of navigation-assisted mobile bearing total knee arthroplasty after 13 years when mechanical revision was considered as the end-point was significantly improved when compared to conventionally implanted mobile bearing total knee arthroplasty. Longer follow-up is required to prove superiority of any technique.
Learning Curve in Computer-Assisted Total Knee Arthroplasty: A CUSUM Analysis
Authors: Dai Yifei , Bras Guillaume , Hamad Cyril
Published: July 2018

This study employed an advanced method (CUSUM) to analyze the learning curve regarding surgical efficiency (time) in 10 surgeons from different experience levels upon their adoption of a contemporary CAOS TKA system. The first 50 CAOS TKA cases of each surgeon were analyzed to identify the case number when their learning process was stabilized (cases of proficiency). The surgical time increase during the learning phase were compared between senior and novice surgeons. The data demonstrated a short learning duration (12-13 cases) and a moderate learning process (~15min time increase compared to later cases) upon adoption of the CAOS system, without high sensitivity to surgeon’s experience level.
Equivalence Evaluation of Point Registration and Intraoperative CT Registration While Using Navigation System
Authors: Zhang Yu , Qiu Lei , Zhang Qing , Xu Lihui , Yao Yujin , Niu Xiaohui , Zhang Li
Published: July 2018

Registration of the patient body and virtual 3D plan is an initial but very fundamental procedure for accurately using the navigation system. Currently, there are two commonly used registration methods, i.e., point registration and intraoperative CT registration, which are suitable for different kinds of operative scenarios. By now, there is no literature reporting about how to choose between these two registration methods during using the navigation systems. In this study, we respectively performed 12 simulated osteotomies based on the point registration method and intraoperative registration method during using the navigation system. Two statistical tests were done based on the surgical errors of osteotomy surgeries using these two registration methods. Specifically, T-test result (p<0.001) indicated the intraoperative CT registration performed better than point registration. Besides, equivalence test of the two registration methods (Rg=1.00 mm) suggested that the two registration methods perform equivalently while using the navigation system. Moreover, we have shared the surgeons some practical suggestions about how to choose between these two registration methods during using the navigation system.
Benchmarking of a Proposed Augmented-Reality System Architecture
Authors: Iqbal Hisham , Rodriguez Y Baena Ferdinando
Published: July 2018

Advances in augmented-reality (AR) technologies have seen their increased adoption in robotic-assisted procedures in a surgical environment, as they provide both cognitive benefits through improved information management, as well as potential reductions in operating times with the removal of manually operated physical displays. A crucial component of successfully transferring AR-based technologies from a research environment into operating theatres is a robust back-end communication system capable of rapidly communicating information between surgical robots and head-mounted displays.

A system capable of carrying out this task was constructed by coding a server program written in C#, which communicated via WiFi with a HoloLens™ (Windows, USA) app coded in C# deployed via Unity (Unity Technologies, USA). The system architecture utilised User-Datagram Protocol to take raw input data, format it into packets, and then wirelessly transmit it to the HoloLens™. The constructed system was tested against a benchmark frequency (>10Hz) to examine its suitability in a real-time application.

Data varying in size from from 0.128 KB - 4.69 MB was successfully transmitted above the real-time benchmark, with the lowest recorded frame-rate registering at 14.13Hz, indicating that the system shows promise in transmitting surgical navigation workflow information and coordination-transformation data in a surgical environment. Future work on the system will aim to further streamline the communication architecture in order to smoothly integrate any additional hardware into the communication network whilst maintaining a low communication-latency, with an overarching aim of progressing towards a more mixed-reality experience in a surgical environment.
Pesquisa de Clima Organizacional: um estudo de caso
Authors: Alexandre Mayara
Published: July 2018

O mundo das organizações está cada vez mais competitivo. As empresas precisam ser resilientes, buscando factores que as diferenciem dos seus concorrentes. O factor humano é uma ferramenta poderosa nas mãos de gestores que tenham a capacidade de lidar com pessoas e de transformá-las em parte da sua estratégia no alcance dos objetivos organizacionais. O gestor deve atentar para as variáveis do ambiente interno e externo da empresa e como os seus colaboradores irão reagir a estas interações. Estas mudanças ambientais podem afetar positiva ou negativamente o desempenho individual de cada colaborador e, consequentemente, toda a equipa. A Pesquisa de Clima Organizacional mensura factores que influenciam no clima e avalia os resultados de forma a investigar as suas origens. Este trabalho irá analisar a ingerência do ambiente organizacional nos seus colaboradores e como o clima organizacional pode interferir nos seus comportamento e na motivação pessoal e profissional. Será aplicado um questionário de abordagem descritiva para avaliar os resultados da Pesquisa de Clima Organizacional.
Karanlık Madde Araştırmaları için Kullanılan Dedektör Teknolojileri
Authors: Aşkın Ali
Published: July 2018

Evrendeki baryonik olmayan madde
içeriğinin bilinen baryonik madde içeriğinden fazla olduğunun kozmolojik
gözlemlerle açığa çıkmasından sonra, bu gizemli maddenin deneysel tespiti
amacıyla dünya genelinde artan bir deneysel çalışma söz konusudur. Karanlık
madde konusunda en kabul gören teorik görüş bu maddelerin zayıf etkileşimli
ağır parçacıklar (Weakly Interacting Massive Particles, WIMPs) olduğu
yönündedir. Farklı çalışma grupları farklı teknolojiler ve teknikleri
kullanarak detektör sistemleri geliştirmekte ve çalıştırmaktadır. Bu çalışmada,
karanlık madde araştırmaları için geliştirilen detektörlerin çalışma
prensipleri ve şu anda gelinen mevcut durumları değerlendirilmiştir.
Diversity and community composition of marine mollusks fauna on a mainland island of the coast of Paraná, southern Brazil
Authors: Gernet Marcos De Vasconcellos , Colley Eduardo , Santos Elizângela da Veiga , Birckolz Carlos João
Published: July 2018

A Ilha do Farol é uma ilha continental, no estado do Paraná, sul do Brasil. Devido à sua posição em relação ao continente, três ambientes distintos são observados nela: área de costão rochoso exposto ao mar aberto (A); área estuarina (B); área de praia arenosa (C). Considerando que as ilhas continentais são excelentes modelos de estudo que reproduzem as condições ambientais da zona costeira em menor escala, o estudo teve como objetivo levantar e pesquisar a malacofauna marinha na Ilha do Farol e comparar sua diversidade e composição. O método de amostragem foi baseado em coletas mensais nos três ambientes da ilha durante dois anos (2011-2012). O levantamento encontrou 91 espécies: 47 Gastropoda, 41 Bivalvia e três Scaphopoda. A maior riqueza e abundância de espécies prevaleceu no ambiente A. A maior equidade foi observada em B e o maior domínio em C. Houve predominância de Gastropoda e Bivalvia em A, enquanto a frequência de Scaphopoda não variou entre os ambientes. A composição de espécies das três classes variou entre as três áreas. A variação da diversidade e composição das espécies nos três ambientes podem estar relacionados com as características naturais de cada ambiente da ilha, como salinidade e ação de ondas.

Palavras chave: Abundância, conservação, equitabililidade, levantamento, riqueza, Mollusca.

Abstract: Farol Island is a continental island in the state of Paraná, southern Brazil. Due to its position in relation to the continent, three distinct environmental areas are observed: rocky shore area with open exposure to the sea (A) estuarine area (B); sandy beach area (C). Considering that the continental islands are excellent study models that reproduce the environmental conditions of the coastal zone in a smaller scale, the study aimed at surveying and researching the marine malacofauna on the Farol Island and comparing the diversity and shellfish composition. The sampling method was based on a monthly collection in three locations for two years (2011-2012). The survey found 91 species: 47 Gastropoda, 41 Bivalvia and three Scaphopoda. The highest abundance and species richness prevailed in environmental area A. The greatest equitability was observed in B and the highest dominance in C. There was a predominance of Gastropoda and Bivalvia in A, while the frequency of Scaphopoda did not vary among environments. The species composition of the three classes varied among the three areas. The variation of diversity and species composition in the three environments may be related to the natural characteristics of each side of the island, as salinity and wave action.

Key words: Abundance, conservation, equitability, survey, richness, Mollusca.
Pola Komunikasi Orang Tua Terhadap Anak Dalam Seleksi Menonton Televisi di Ngentak Sapen, Catur Tunggal, Depok, Yogyakarta.
Authors: Hasan Haryanto
Published: July 2018

Currently television as one of the modern communication media that very rapid development. This development certainly has positive and negative effects in accordance with the events broadcast by this media.This research uses qualitative research methods, that is to produce data in the form of written or oral words of the people and behavior to be observed, and phenomenological approach intended to know and understand as well as describe what happened in research place clearly and in detail by collecting as much data as possible about parents' communication to children in television viewing selection and parental barriers in communication with children in NgentakSapen, Catur Tunggal, Depok, Yogyakarta Researchers concluded that the pattern of parent communication with children in the selection of watching television runs well although only some of the parents who realize the magnitude of the influence of television for the development of children, especially in speech and behavior, and communication barriers parents with children is not too difficult, although sometimes children like to be angry, denied when ruled, never understood when advised but anyway obstacles that parents can understand it and find a solution to change the barriers and do not forget always give advice to the attitude of such a child does not happen again.