bluuebunny/crossref_metadata_2025_split huggingface dataset:
Spontaneous closure of an incidental high-flow paravertebral arteriovenous fistula caused by vertebral giant cell tumor curettage: illustrative case
Authors: Lin Yen-Heng , Huang Yu-Cheng , Tsuang Fon-Yih 
Published: May 2021

BACKGROUND
Paravertebral arteriovenous fistula (AVF) after spinal surgery is rarely reported in the literature. Its natural course is largely unknown.

OBSERVATIONS
The authors report a 31-year-old woman with a high-flow AVF after T12 vertebral giant cell tumor curettage. Eight months after the initial surgery, revision en bloc surgery was planned. Preoperative computed tomography angiography was performed for vascularity assessment, which incidentally revealed a large paravertebral early-enhanced venous sac. High-flow AVF was confirmed through subsequent spinal angiography. Endovascular embolization was scheduled before the surgery to avoid massive blood loss. However, the AVF closed spontaneously 1 month after the spinal angiography. The plan was changed to preoperative embolization; subsequently, three-level en bloc spondylectomy was performed smoothly.

LESSONS
Iatrogenic AVF is possible, prompting investigation by vascular imaging when suspected. Embolization is a preferred treatment method when feasible. However, for iatrogenic etiology, the prothrombotic property of the contrast medium may induce the resolution. Multidisciplinary discussion can be very helpful before aggressive spinal surgery.
Rare large colloid cyst obstructing the posterior third ventricle: illustrative case
Authors: Gerstl Jakob V. E. , Aquilina Kristian , Florman Jeffrey E. 
Published: May 2021

BACKGROUNDColloid cysts of the posterior third ventricle are exceedingly rare. This location is a high-risk zone for colloid cysts because of potential obstruction of the cerebral aqueduct.OBSERVATIONSThe authors report a case of a 57-year-old man who presented with a 6-month history of progressive headache, short-term memory loss, visual blurring, and an episode of double vision. Magnetic resonance imaging (MRI) revealed a colloid cyst, 22 mm in diameter, attached to the roof of the posterior third ventricle. The posterior third ventricle was obstructed, but both foramina of Monro were patent. The entirety of the cyst was resected via a right frontal parasagittal, interhemispheric, transventricular approach through the foramen of Monro. It was not contained within the velum interpositum. The patient did not experience any postoperative deficits.LESSONSThis case supports the theoretical evidence that colloid cysts in the posterior zone of the third ventricle pose a risk for obstructive hydrocephalus. This report of a large cyst in a rare location describes a unique lesion and provides the first published MRI description.
First reported use of real-time intraoperative computed tomography angiography image registration using the Machine-vision Image Guided Surgery system: illustrative case
Authors: Wadhwa Harsh , Malacon Karen , Medress Zachary A. , Leung Christopher , Sklar Matthew , Zygourakis Corinna C. 
Published: May 2021

BACKGROUND
Vertebral artery injury is a devastating potential complication of C1–2 posterior fusion. Intraoperative navigation can reduce the risk of neurovascular complications and improve screw placement accuracy. However, the use of intraoperative computed tomography (CT) increases radiation exposure and operative time, and it is unable to image vascular structures. The Machine-vision Image Guided Surgery (MvIGS) system uses optical topographic imaging and machine vision software to rapidly register using preoperative imaging. The authors presented the first report of intraoperative navigation with MvIGS registered using a preoperative CT angiogram (CTA) during C1–2 posterior fusion.

OBSERVATIONS
MvIGS can register in seconds, minimizing operative time with no additional radiation exposure. Furthermore, surgeons can better adjust for abnormal vertebral artery anatomy and increase procedure safety.

LESSONS
CTA-guided navigation generated a three-dimensional reconstruction of cervical spine anatomy that assisted surgeons during the procedure. Although further study is needed, the use of intraoperative MvIGS may reduce the risk of vertebral artery injury during C1–2 posterior fusion.
Chronic allergic fungal sinusitis invading the skull base in an immunocompetent male: illustrative case
Authors: Naik Anant , Yang Darrion Bo-Yun , Bellafiore Frank J. , Amine Muhamad A. , Hassaneen Wael 
Published: May 2021

BACKGROUNDAllergic fungal sinusitis (AFS) is an immunoglobulin E–mediated reaction to fungal organisms in the sinonasal region and can be categorized as acute or chronic. Acute infection is typical in immunocompromised patients, while chronic infection is classically seen in immunocompetent patients. Spread of infection to the skull base is a rare and potentially lethal complication of prolonged infection. Surgical management is frequently augmented with steroid therapy to prevent recurrence.OBSERVATIONSThe authors present a case of a 20-year-old African American male with prolonged headaches and blurred vision who was diagnosed with chronic invasive fungal sinusitis resulting in invasion of fungal burden into the anterior skull base and the posterior aspect of the clivus, in addition to complete obliteration of the maxillary sinus. The patient was managed surgically without complication and with gradual improvement in vision.LESSONSEarly management and detection of AFS should be a focus to prevent erosion of the fungal burden into the skull base. Neurosurgery and ear, nose, and throat surgery have a multidisciplinary role in the management of advanced AFS cases.
Prevalence of Vitamin D Deficiency among Patients of Acute Coronary Syndrome in a Tertiary Care Center of Eastern Nepal
Authors: Nepal Richa , Karki Prahlad , Uraw Surendra , Lamsal Madhab 
Published: May 2021

Introduction: Vitamin D deficiency is an emerging risk factor for cardiovascular diseases. Very few studies have been done to find out vitamin D deficiency status among cardiovascular patients in Nepalese setup. This research aims to find out the prevalence of vitamin D deficiency among patients of acute coronary syndrome admitted in a tertiary care center of eastern Nepal.
Methods: This was a descriptive cross-sectional study conducted among patients of acute coronary syndrome admitted in a tertiary care hospital from 1st February 2018 to 31st July 2018. Ethical clearence was taken from Institutional Review Committee of B.P. Koirala Institute of Health Sciences (Reference number: 259/074/075-IRC). Convenience sampling method was used. Data was entered in Microsoft Excel and analyzed using Statistical Package for the Social Sciences version 25. Point estimate at 95% Confidence Interval was calculated along with frequency and proportion for binary data.
Results: A total of 33 (64.7%) at 95% Confidence Interval (51.58-77.82) patients of acute coronary syndrome had vitamin D deficiency in our study with 19 (37.3%) having mild deficiency and 14 (27.4%) having moderate deficiency. None of the patients had severe vitamin D deficiency in our study. The mean vitamin D levels were lower in diabetics (23.57Â±9.28ng/ml) as compared to non-diabetics (31.91Â±12.50ng/ml), in hypertensive patients (24.36Â±7.67ng/ml) as compared to non-hypertensive patients (30.97Â±13.72ng/ml), and in patients with dyslipidemia (22.86Â±6.44ng/ml) as compared to those without dyslipidemia (37.68Â±13.15ng/ml).
Conclusions: Prevalence of vitamin D deficiency among patients of acute coronary syndrome in our study was comparable to various other homologous international studies.
Mechanical properties of bituminous mixtures under sinusoidal cyclic loadings: Experiment and modelling
Authors: Tuan Nguyen Quang 
Published: May 2021

Mechanical behaviour of bituminous mixtures is characterized by the great thermal sensitivity and the large viscous effects. This paper focuses on the linear viscoelastic (LVE) behaviour of bituminous mixtures that is considered for pavement design. The studied material is a GB3 mix (GB in French is “Grave Bitume”) which is often used for base course construction in France. Complex modulus tests are performed to determine the LVE properties of bituminous mix. Sinusoidal cyclic loadings in tension and compression for small strain amplitudes (up to 10-4 m/m) are applied on cylindrical samples at different temperatures (from -23.4°C to 39.1°C) and different frequencies (from 0.03 to 10Hz). The complex modulus E* and complex Poisson’s ratio ν* are obtained for these large ranges of temperature and frequency. From all these data, it is shown that within the linear viscoelastic domain and in the 3D case, the Time Temperature Superposition Principle (TTSP) is applicable and verified. A model with a continuum spectrum called 2S2P1D (2S2P1D means two Springs, two Parabolic elements, one Dashpot), developed at the Ecole Nationale des Travaux Publics de l’Etat (ENTPE), is used to simulate the 3D LVE behaviour of tested bituminous mixture.
Keywords:
linear viscoelasticity; bituminous mixture; modelling; complex modulus; complex Poisson’s ratio.
General non-uniform quadrilateral cross-sections for thin-walled FG sandwich beams
Authors: Nguyen Tan-Tien , Nguyen Quoc-Hung , Le Thang D. , Le Hiep D. 
Published: May 2021

The paper aims at introducing an analysis of thin-walled functionally graded sandwich beams for general non-uniform quadrilateral cross-sections. Generally, the materials are assumed to be graded through the thickness following a predefined shape while Poisson's ratio kept as a constant due to its less domination. The cross-section linearly varies from one end to another end of the beam. In order to relax the difficulties in modeling as well as capturing the behaviors of thin-walled functionally graded beams, a higher-order approach has been applied including warping, coupling distortions as well as Poisson's distortion. A multi-separated beam on each edge of the cross-section which is an application of the so-called beam-frame-modal method is adopted. Subsequently, the effects of these major importance along with anisotropy of materials are then fully considered. As a consequence, the analysis is able to extensively applied to closed-section beam-shells with different curvatures. In order to illustrate the accuracy and computational efficiency of the method, various examples have been conducted in which the results obtained from finite element package as ABAQUS are employed.
Keywords:
quadrilateral cross-section; thin-walled FG beam; higher-order coupling; beam frame modal.
Prediction of axial strength in circular steel tube confined concrete columns using artificial intelligence
Authors: Ngo Ngoc-Tri , Pham Thi-Phuong-Trang , An Le Hoang , Nguyen Quang-Trung , Nguyen Thi-Thao-Nguyen , Huynh Van-Vu 
Published: May 2021

In recent years, together with the boom of the industrial revolution 4.0, terms such as artificial intelligence (AI) are gradually gaining popularity engineering domain. This study proposed a number of AI models for predicting the axial strength in circular steel tube confined concrete (STCC) columns. Particularly, artificial neural networks (ANNs), support vector regression (SVR), linear regression (LR), and M5P were applied in this study. This study applied 136 samples of short and intermediate STCC columns infilled with normal strength concrete, high strength concrete, or ultimate high strength concrete to evaluate the AI models. Compressive strengths of concrete cylinders was ranged from 23.20 Mpa to 188.10 Mpa. The AI models were assessed by statistical indexes including MAPE, MAE, RMSE, and R. The analytical results revealed that the M5P the most effective AI model comparing to others. Comparing with the other models, predicted data obtained by the M5P model show the highest agreement with the actual data in predicting the axial strength of STCC columns. Particularly, the MAPE and R of M5P models were 10.62% and 0.977 respectively. Similarly, the RMSE by the M5P model was 330.38 kN which is the lowest value among 419.39 kN by the LR model, 337.84 kN by the ANNs model, and 857.11 kN by the SVR model. Therefore, the M5P model can be considered as a useful tool to accurately predict the compressive capacity of the STCC columns.
Keywords:
artificial intelligence; circular steel tube confined concrete columns; axial strength; support vector regression.
PELAKSANAAN LITERASI LINGKUNGAN DI SD NEGERI 10 KERAPA SEPAN KECAMATAN KAYAN HILIR KABUPATEN SINTANG
Authors: Patrisiana Patrisiana , Dike Daniel , Wibowo Dwi Cahyadi 
Published: May 2021

Penelitian ini merupakan penelitian untuk mengetahui pelaksanaan literasi lingkungan di SD Negeri 10 Kerapa Sepan Kecamatan Kayan Hilir Kabupaten Sintang, yang memuat tujuan penelitian untuk mengetahui kondisi literasi lingkungan sekolah di SD Negeri 10 Kerapa Sepan Kecamatan Kayan Hilir Kabupaten Sintang dan cara penguatan literasi lingkungan di SD Negeri 10 Kerapa Sepan Kecamatan Kayan Hilir Kabupaten Sintang. Teknik pengumpulan data yaitu teknik dokumentasi, teknik observasi dan teknik komunikasi secara langsung. Alat pengumpulan data seperti dokumen, lembar observasi dan lembar wawancara. Ada pun hasil analisis penelitian ditemukan bahwa masih kurangnya sikap peduli siswa terhadap masalah-masalah lingkungan dan guru-guru tidak ada yang berlatarbelakangkan pendidikan literasi lingkungan serta masih kekurangan tenaga pendidik dan kekurangan dana untuk membangun sekolah dengan program adiwiyata. Berdasarkan hasil penelitian diperoleh kesimpulan bahwa literasi lingkungan di SD Negeri 10 Kerapa Sepan Kecamatan Kayan Hilir Kabupaten Sintang sudah dilaksanakan hanya saja belum terprogram secara khusus menggunakan program sekolah adiwiyata serta penguatan literasi lingkungan dalam hal ini pun sudah dilaksanakan dan sekolah sudah mulai merintis cara-cara untuk memberikan penguatan literasi lingkungan kepada siswa. Kata Kunci: Literasi Lingkungan
UPAYA PEMERINTAH DESA JERORA SATU DALAM MEWUJUDKAN MASYARAKAT YANG DEMOKRATIS DI ERA REFORMASI 4.0 PADA TAHUN 2020
Authors: Fusnika Fusnika , Suseka Septha , Lestari Aprillianti Bunga 
Published: May 2021

Penelitian ini bertujuan untuk mengetahui untuk mengetahui upaya, peranan menghadapi hambatan, dan wujud pembinaan Pemerintah Desa Jerora Satu dalam berpartisipasi dengan masyrakat yang berdemokratis di era reformasi 4.0. Metode penelitian yang digunakan dalam penelitian ini deskriptif kualitatif dan bentuk penelitian studi kasus. Teknik pengumpulan data menggunakan teknik observasi, wawancara, dan dokumentasi. Hasil penelitian dan kesimpulan menunjukan bahwa : 1) bentuk upaya yang dilakukan adalah menampung aspirasi masyarakata Desa Jerora Satu dan dengan cara mengadakan musyawarah sehingga mewujudkan prioritas masyarakat desa, 2) faktor pola pikir masyarakat Desa Jerora Satu tidak sepenuhnya apatis dan faktor dukungan pemerintah di desa sudah baik ini terlihat dari control yang dilakukan sebuah sosialisasi dari lembaga swadaya masyarakat. 3) wujud pembinaannya adalah sosialisasi untuk mendapatkan perhatian masyarakat Desa Jerora Satu berpartisipasi dalam demokrasi untuk mempertemukan setiap pandangann antara masyarakat dan Pemerintah Desa Jerora Satu Saran untuk 1) Pemerintah desa dan aparat Desa jerora satu supaya dapat menjalin hubungan yang baik dan akan meningkatkan pendekatan kepada masyrakat Desa Jerora satu 2) masyarakat Desa Jerora Satu agar dapat meningkatkan partisipasi turut aktif, serta menjadi masyarakat yang peka terhadap demokrasi. 3) peneliti dapat meneliti luas lagi terkait upaya pemerintah desa dalam mewujudkan masyarakat yang demokratis.Kata Kunci: Pemerintah Desa, Masyarakat Demokratis, Era Reformasi
ANALISIS HASIL BELAJAR SISWA PADA MATA PELAJARAN PKN MELALUI METODE PEMBELAJARAN DISKUSI DI SMP NEGERI 3 DEDAI TAHUN PELAJARAN 2019/2020
Authors: Juri Juri , Mardawani Mardawani , Samudeh Samudeh 
Published: May 2021

Penelitian ini bertolak dari keprihatinan guru terhadap proses belajar siswa di sekolah, terutama ditengah pandemi wabah Virus Corona yang melanda seluruh bidang kehidupan, termasuk bidang pendidikan. Hal demikian telah membuat proses belajar mengajar di sekolah cukup terhambat dan menyebabkan siswa terus diliburkan. Kondisi demikian menjadi kendala yang cukup serius bagi para guru dan siswa untuk terus melaksanakan proses belajar mengajar yang efektif di sekolah seperti dahulu. Untuk itu, diperlukan upaya kreatif dari para guru supaya pembelajaran tetap dapat dilangsungkan walaupun hanya dari rumah dengan memanfaatkan teknologi berupa aplikasi Zoom Meeting. Upaya kreatif yang dimunculkan guru supaya proses pembelajaran dapat terus berlangsung dan diyakini tidak membuat siswa bosan adalah model pembelajaran diskusi. Adapun permasalahan umum yang berusaha dicari pemecahannya, antara lain: (1) Pelaksanaan proses pembelajaran menggunakan metode diskusi; (2) Hasil belajar siswa terutama pada mata pelajaran PKn; (3) kendala yang dihadapi guru dan siswa dalam proses pembelajaran diskusi. Proses pengumpulan data menggunakan pendekatan kualitatif deskriptif dan instrumen yang digunakan adalah wawancara dan studi dokumentasi. Hasil penelitian menunjukkan bahwa (1) Proses belajar mengajar di SMP Negeri 3 Dedai menggunakan metode diskusi cukup berhasil; (2) Hasil belajar siswa cukup baik, walaupun sebenarnya kalau mau jujur, nilai mereka menurun, namun karena guru mempunyai pertimbangan yang cukup banyak, maka nilai siswa paling tidak diusahakan stagnan (3) Kendala yang dihadapi adalah pengeluaran orang tua siswa yang cukup besar berkaitan dengan kuota untuk internet, seringkali gangguan signal terutama pada saat cuaca buruk dan bagi siswa yang tinggal jauh dari pusat kecamatan diperlukan tempat khusus yang ada signal untuk mengakses internet. Kata kunci: Mata Pelajaran PKn, Metode Diskusi, Hasil Belajar
Analisis Kesalahan Dalam Menyelesaikan Masalah Himpunan Siswa SMP Kelas VII Ditinjau Dari Gender
Authors: Indra Zulfayanto  , Sinta Lestari  , Tsamrotul Ilmiah  , Mustangin  
Published: May 2021

Penelitian ini bertujuan untuk mendeskripsikan kesalahan siswa perempuan dan laki-laki dalam menyelesaikan masalah himpunan. Manfaat dari penelitian ini yaitu memberikan informasi tentang kesalahan dalam menyelesaikan masalah matematika, khususnya masalah himpunan. Jenis penelitian ini yaitu deskriptif kualitatif. Penelitian ini dilakukan di SMPN 1 Moyo Utara. Subjek penelitian ini adalah siswa kelas VII yang berjumlah 10. Teknik pengumpulan data yang digunakan adalah tes dan wawancara. Uji keabsahan data dilakukan menggunakan triangulasi metode yaitu dengan membandingkan data hasil tes dengan hasil wawancara dengan subjek. Analisi data dalam penelitian ini dilakukan dengan reduksi data, penyajian data, veririfikasi data dan penarikan kesimpulan. Dasar analisis data dalam penelitian ini menggunakan indikator kesalahan menurut Newman. Dari data penelitian diperoleh 5 kesalahan baik dari siswa laki-laki maupun perempuan, dengan persentase siswa laki-laki yaitu: kesalahan Reading error 70%, Comprehension error 80%, Transformation error 80%, Process skill error80%, Encoding error 80% . Sedangkan persentase dari siswa perempuan yaitu: kesalahan Reading error 5%,Comprehension error 95%, Transformation error 95%, Process skill error 95%, Encoding error 95%. Hasil penelitian menunjukkan bahwa tidak ada perbedaan yang begitu mencolok antara kesalahan siswa laki-laki dan perempuan dalam menyelesaikan masalah himpunan kelas VII di SMPN 1 Moyo Utara.
Online Course: Application Models in the Educational Process
Authors: Grechushkina N. V. 
Published: May 2021

Digitalization of education and the development of electronic pedagogy as a branch of pedagogical science are the conditions that actualize the analysis of online courses application mo-dels which is the purpose of this study. Based on the analysis of scientific pedagogical literature, the article addresses the typology of online courses integration models implemented in the traditional (face-to face) educational process. The author has studied and summarized the various approaches to selecting integration models of online courses in Russian and foreign scientific and pedagogical literature and developed a typology of patterns of online courses application based on three criteria: the organization of the educational process (characteristics: the character of the online course incorporating in the educational process, a way of organizing the educational process), the contents of traditional face-to-face and online components in the learning content (characteristics: a change in the structure of educational process, forms and methods of training), and the organization of interaction between the subjects of the educational process (characteristics: organization of pedagogical support, organization of pedagogical interaction between the subjects). This approach made it possible to pinpoint thirty-four models of online courses application and integration. Each model implemented in practice can be identified unambiguously when typologizing by one characteristic of the corresponding criterion and refer to several types when considering its different characteristics.
ROLE OF NURSES IN A MULTISCIPLINARY TEAM MANAGING PATIENTS AT RISK FOR OSTEONECROSIS OF JAW (ONJ): A FIFTEEN-YEAR EXPERIENCE
Authors: Ferrero Elisabetta , Brigo Paola , Tartara Daniela , Riccio Carmela , Fasciolo Antonella , Fusco Vittorio 
Published: May 2021

Osteonecrosis of the Jaw (ONJ) is a serious event, with negative consequences on the Quality of Life of advanced cancer and myeloma patients. Antiresorptive drugs (bisphosphonates and denosumab) are of great clinical benefit, they impose careful oral health monitoring in order to prevent the occurrence of ONJ. On November 2005, at Alessandria Hospital, an ONJ Multidisciplinary Team for the prevention, the diagnosis and the treatment of ONJ was established; within the team, nurses are active as case-managers. The case manager nurses became the figure of coordination of diagnosis path, treatment and care, as well as a reference for the patient and the whole multidisciplinary team. The team nurses are also involved in data collection and processing, by monitoring the clinical care pathway both for practice patients and for study protocol patients. At March 2021, more than 900 patients were seen by the multidisciplinary group, with data registered on charts and database.

In our experience, nurses are active members of the Multidisciplinary Team, playing multiple roles: case manager taking charge of a patient, when following and supporting him/her during first visits, diagnosis and treatment; coordinator of the procedures to be implemented, indicated by several medical specialists; health educator implementing proper health interventions; data management and participation in study protocols, hence outlining the role of the research nurse.