bluuebunny/crossref_metadata_2025_split huggingface dataset:
WORKSHOP PEMANFAATAN MEDIA PEMBELAJARAN GEOGEBRA UNTUK MENINGKATKAN KOMPETENSI GURU MATEMATIKA
Authors: Panggabean Nur Sahara , Sormin Masdelima Azizah , Agustina Lisna 
Published: June 2019

Paradigma terhadap sulitnya belajar matematika seolah menjadi kelaziman bagi siswa dalam pelaksanaan proses belajar mengajar di kelas. Kreativitas guru dalam melaksanakan pembelajaran dikelas sangat menentukan terhadap pencapaian keberhasilan siswa dalam menerima materi yang diajarkan. Sebagai guru yang kreatif tentunya harus memiliki skill di bidangnya agar siswa yang diajarkan berhasil guna dalam proses pembelajarannya. Pemanfaatan media pembelajaran dalam matematika tentunya menjadi sebuah kreativitas yang harus dimiliki oleh guru matematika sebab dengan penguasaan dan penggunaan media tersebut diharapkan siswa merasa ikut memiliki pelajaran yang disampaikan oleh guru. Saat ini, program computer dalam pembelajaran matematika merupakan keniscayaan. Salah satu program computer yang dapat dimanfaatkan dalam pembelajaran matematika adalah GeoGebra. GeoGebra adalah program dinamis yang dengan beragam fasilitasnya dapat dimanfaatkan sebagi media pembelajaran matematika untuk mendemonstrasikan atau memvisualisasikan konsep – konsp matematika serta sebagi alat bantu untuk mengkonstruksi konsep – konsep matemtika. Namun, tidak semua guru matematika mampu dan cakap dalam memanfaatkan media pembelajaran GeoGebra. GeoGebra merupakan aplikasi yang mudah untuk dipahami oleh siswa dan dapat digunakan hampir untuk semua materi yang ada dalam matematika sehingga dengan menggunakan aplikasi ini siswa tidak merasa monoton dalam proses belajar mengajar di kelas. Anggapan siswa tehadap matematika yang sulit akan hilang seiring dengan skill yang akan mereka miliki dengan pemanfaatan GeoGebra ini. Artikel ini menyajikan uraian bagaimana pengabdi menerapkan GeoGebra dalam setiap pembelaran matematika.Target kegiatan ini adalah guru-guru matematika di Tapanuli Selatan. Jumlah peserta workshop sebanyak 16 orang. Tempat pelaksanaan kegiatan dilaksanakan di SMA Negeri 1 Sipirok. Metode pelaksanaan yang digunakan adalah metode eksperimental dan pendampingan. Dengan adanya kegiatan ini diharapkan mampu memberi informasi dan pengetahuan bagaimana memanfaatkan media pembelajaran matematika sehingga menjadi sebuah pelajaran yang menyenangkan bagi guru dalam membelajarkannya.Kata Kunci : GeoGebra, Matematika
Analyse des courriers de plainte adressés au service d’urgence d’un centre hospitalier général
Authors: Chouhab Y. , Lefebvre T. , Forestier C. , Parsis P. , Martinez M. 
Published: June 2019

Objectif : L’objectif principal de notre travail était d’analyser les courriers de plainte (CP) adressés à un service d’urgence (SU). L’objectif secondaire était de déterminer s’il existait une corrélation entre CP et temporalité de passage au SU.
Matériel et méthodes : Étude rétrospective monocentrique sur six ans portant sur les CP concernant les prises en charge en SU.
Résultats : Quatre-vingt-un CP ont été analysés, la moyenne annuelle et l’incidence étaient de 13,5 CP/an et de 5,5 CP/ 10 000 passages. L’incidence était de 3,5 CP/10 000 passages pour les enfants vs 6,1 CP/10 000 passages pour les adultes (p = 0,11). Le plaignant était la famille dans 44 CP (55 %) et le patient dans 34 CP (42 %). Il n’y avait pas de différence significative entre le jour et la nuit (5,7 CP/10 000 vs 4,8 CP/ 10 000 passages ; p = 0,57) ni entre horaires de garde et horaires hors garde (5,6 CP/10 000 vs 5,2 CP/10 000 passages ; p = 0,78). Nous avons dénombré 133 doléances, avec une cause médicale dans 64 CP (48 %), une cause organisationnelle dans 44 CP (33 %), une cause relationnelle dans 25 CP (19 %). Une indemnisation financière a été demandée dans 13 CP (16 %) et a été accordée pour deux dossiers (2 %). Aucun CP n’a entraîné de poursuite en justice.
Conclusion : L’incidence des CP de notre SU reste dans la moyenne basse des données retrouvées au niveau national et sans relation avec la temporalité du passage. L’analyse des CP permet d’améliorer la qualité de la prise en charge et de proposer des mesures correctives en relation avec la commission des usagers.
Long-term outcome in orbital meningiomas: progression-free survival after targeted resection combined with early or postponed postoperative radiotherapy
Authors: Terpolilli Nicole Angela , Ueberschaer Moritz , Niyazi Maximilian , Hintschich Christoph , Egensperger Rupert , Muacevic Alexander , Thon Niklas , Tonn Jörg-Christian , Schichor Christian 
Published: June 2019

OBJECTIVEIn meningiomas involving the orbit and optic canal, surgery is the mainstay of therapy. However, radical resection is often limited to avoid functional damage, so multidisciplinary treatment concepts are implemented. Data on the timing and value of early postoperative radiotherapy (PORT) are scarce. This retrospective study analyzes outcomes in patients who underwent targeted resection alone or in combination with early PORT.METHODSPatients undergoing resection of orbit-associated WHO grade I meningiomas from January 1999 to December 2013 who presented to the authors’ department at least twice for follow-up were included. Clinical and radiological findings were analyzed retrospectively. Patients were stratified into two cohorts: follow-up with MRI scans at regular intervals, i.e., the watch and wait (W&W) group, and a PORT group receiving PORT within 6 months after surgery in addition to MRI follow-up. Patients in the W&W group were scheduled for treatment when tumor progression was detected by imaging.RESULTSOne hundred twenty-two patients were included. The mean follow-up was 70 months. The most common symptoms at presentation were visual disturbances; 87.7% of patients received Simpson grade II–III targeted partial resection. Twenty-three patients received PORT, and 99 patients were regularly observed with MRI scans (W&W group). Tumor recurrence/progression occurred significantly later (76.3 vs 40.7 months) and less frequently in the PORT group (13%) than in the W&W group (46.5%). Cases of recurrence were diagnosed an average of 39 months after initial surgery in both groups. PORT patients demonstrated significantly less visual impairment at last follow-up.CONCLUSIONSThese results indicate that receiving PORT early after targeted partial resection might help to postpone tumor recurrence and the need for additional treatment, while preserving or even improving visual outcome.
Clinical features and operative technique of transinfundibular craniopharyngioma
Authors: Tang Bin , Xie ShenHao , Huang GuanLin , Wang ZhiGang , Yang Le , Yang XuanYong , Xu Shan , Zeng ErMing , Hong Tao 
Published: June 2019

OBJECTIVETransinfundibular craniopharyngioma (TC) is one of the 4 subtypes of suprasellar craniopharyngioma. In this study, the authors analyzed the clinical features of and operative technique for TC.METHODSA total of 95 consecutive cases of suprasellar craniopharyngioma that had been resected via the endoscopic expanded endonasal approach were retrospectively reviewed. Patients were divided into 2 groups: 34 in the TC group and 61 in the nontransinfundibular craniopharyngioma (NC) group. Clinical and radiographic features, intraoperative findings, histopathological and genetic findings, and surgical outcomes were analyzed and compared between groups.RESULTSCompared with NC, TC was mostly seen in adult patients (97.1%); it was rare in children (2.9%). Clinical presentations tended toward headache, hydrocephalus, and diabetes insipidus. The relatively smaller volume, midline location (consistent with the stalk position), unidentifiable stalk, no shift of the third ventricle, and greater likelihood to involve the third ventricle and cause hydrocephalus were the characteristic features of TC in the preoperative MRI study. According to the degree of vertical extension of the tumor, the 34 TCs could be classified into 3 subtypes: type 1, entity was limited to stalk (n = 2, 5.9%); type 2, tumor extended up to the third ventricle (type 2a) or down to the subdiaphragmatic cavity (type 2b) (n = 23, 67.6%); and type 3, tumor extended in both directions (n = 9, 26.5%). For TC resection, the chiasm–pituitary corridor, lamina terminalis corridor, and pituitary corridor could be used separately or jointly. Most of the TCs originated from the infundibulum–tuber cinereum, grew within and along the long axis of the infundibulum, and the pituitary stalk was not usually preserved in TCs (20.6%), whereas the rate of preservation was higher (80.3%) in NCs. Bilateral hypothalamic injury was found in nearly all TCs if radical resection was performed, whereas the relationship between NCs and hypothalamus was either compression (32.8%) or unilateral invasion (67.2%). Meanwhile, the postoperative endocrine and neuropsychological function outcomes in patients with TC were worse than in patients with NC. The genetic analysis with whole-exome sequencing studies showed no differential mutations of CTNNB1 (β-catenin) and BRAF (V600E) between TC and NC subtypes, but there was a difference between adamantinomatous craniopharyngioma and papillary craniopharyngioma.CONCLUSIONSTC is a special subtype of suprasellar craniopharyngioma, which is remarkably different from NC. Identification of this type of tumor preoperatively is essential for the planning of appropriate surgical approach and degree of excision.
Surgical treatment of meningiomas located in the rolandic area: the role of navigated transcranial magnetic stimulation for preoperative planning, surgical strategy, and prediction of arachnoidal cleavage and motor outcome
Authors: Raffa Giovanni , Picht Thomas , Scibilia Antonino , Rösler Judith , Rein Johannes , Conti Alfredo , Ricciardo Giuseppe , Cardali Salvatore Massimiliano , Vajkoczy Peter , Germanò Antonino 
Published: June 2019

OBJECTIVESurgical treatment of convexity meningiomas is usually considered a low-risk procedure. Nevertheless, the risk of postoperative motor deficits is higher (7.1%–24.7% of all cases) for lesions located in the rolandic region, especially when an arachnoidal cleavage plane with the motor pathway is not identifiable. The authors analyzed the possible role of navigated transcranial magnetic stimulation (nTMS) for planning resection of rolandic meningiomas and predicting the presence or lack of an intraoperative arachnoidal cleavage plane as well as the postoperative motor outcome.METHODSClinical data were retrospectively collected from surgical cases involving patients affected by convexity, parasagittal, or falx meningiomas involving the rolandic region, who received preoperative nTMS mapping of the motor cortex (M1) and nTMS-based diffusion tensor imaging (DTI) fiber tracking of the corticospinal tract before surgery at 2 different neurosurgical centers. Surgeons’ self-reported evaluation of the impact of nTMS-based mapping on surgical strategy was analyzed. Moreover, the nTMS mapping accuracy was evaluated in comparison with intraoperative neurophysiological mapping (IONM). Lastly, we assessed the role of nTMS as well as other pre- and intraoperative parameters for predicting the patients’ motor outcome and the presence or absence of an intraoperative arachnoidal cleavage plane.RESULTSForty-seven patients were included in this study. The nTMS-based planning was considered useful in 89.3% of cases, and a change of the surgical strategy was observed in 42.5% of cases. The agreement of nTMS-based planning and IONM-based strategy in 35 patients was 94.2%. A new permanent motor deficit occurred in 8.5% of cases (4 of 47). A higher resting motor threshold (RMT) and the lack of an intraoperative arachnoidal cleavage plane were the only independent predictors of a poor motor outcome (p = 0.04 and p = 0.02, respectively). Moreover, a higher RMT and perilesional edema also predicted the lack of an arachnoidal cleavage plane (p = 0.01 and p = 0.03, respectively). Preoperative motor status, T2 cleft sign, contrast-enhancement pattern, and tumor volume had no predictive value.CONCLUSIONSnTMS-based motor mapping is a useful tool for presurgical assessment of rolandic meningiomas, especially when a clear cleavage plane with M1 is not present. Moreover, the RMT can indicate the presence or absence of an intraoperative cleavage plane and predict the motor outcome, thereby helping to identify high-risk patients before surgery.
Characterization of postsurgical functional connectivity changes in temporal lobe epilepsy
Authors: Morgan Victoria L. , Rogers Baxter P. , González Hernán F. J. , Goodale Sarah E. , Englot Dario J. 
Published: June 2019

OBJECTIVESeizure outcome after mesial temporal lobe epilepsy (mTLE) surgery is complex and diverse, even across patients with homogeneous presurgical clinical profiles. The authors hypothesized that this is due in part to variations in network connectivity across the brain before and after surgery. Although presurgical network connectivity has been previously characterized in these patients, the objective of this study was to characterize presurgical to postsurgical functional network connectivity changes across the brain after mTLE surgery.METHODSTwenty patients with drug-refractory unilateral mTLE (5 left side, 10 female, age 39.3 ± 13.5 years) who underwent either selective amygdalohippocampectomy (n = 13) or temporal lobectomy (n = 7) were included in the study. Presurgical and postsurgical (36.6 ± 14.3 months after surgery) functional connectivity (FC) was measured with 3-T MRI and compared with findings in age-matched healthy controls (n = 44, 21 female, age 39.3 ± 14.3 years). Postsurgical connectivity changes were then related to seizure outcome, type of surgery, and presurgical disease parameters.RESULTSThe results demonstrated significant decreases of FC from control group values across the brain after surgery that were not present before surgery, including many contralateral hippocampal connections distal to the surgical site. Postsurgical impairment of contralateral precuneus to ipsilateral occipital connectivity was associated with seizure recurrence. Presurgical impairment of the contralateral precuneus to contralateral temporal lobe connectivity was associated with those who underwent selective amygdalohippocampectomy compared to those who had temporal lobectomy. Finally, changes in thalamic connectivity after surgery were linearly related to duration of epilepsy and frequency of consciousness-impairing seizures prior to surgery.CONCLUSIONSThe widespread contralateral hippocampal FC changes after surgery may be a reflection of an ongoing epileptogenic progression that has been altered by the surgery, rather than a direct result of the surgery itself. This network evolution may contribute to long-term seizure outcome. Therefore, the combination of presurgical network mapping with the understanding of the dynamic effects of surgery on the networks may ultimately be used to create predictors of the likelihood of long-term seizure recurrence in individual patients after mTLE surgery.
A biomechanical investigation of the sacroiliac joint in the setting of lumbosacral fusion: impact of pelvic fixation versus sacroiliac joint fixation
Authors: Mushlin Harry , Brooks Daina M. , Olexa Joshua , Ferrick Bryan J. , Carbine Stephen , Hayward Gerald M. , Bucklen Brandon S. , Sansur Charles A. 
Published: June 2019

OBJECTIVEThe sacroiliac joint (SIJ) is a known source of low-back pain. Randomized clinical trials support sacroiliac fusion over conservative management for SIJ dysfunction. Clinical studies suggest that SIJ degeneration occurs in the setting of lumbosacral fusions. However, there are few biomechanical studies to provide a good understanding of the effect of lumbosacral fusion on the SIJ. In the present study, researchers performed a biomechanical investigation to discern the effect of pelvic versus SIJ fixation on the SIJ in lumbosacral fusion.METHODSSeven fresh-frozen human cadaveric specimens were used. There was one intact specimen and six operative constructs: 1) posterior pedicle screws and rods from T10 to S1 (PS); 2) PS + bilateral iliac screw fixation (BIS); 3) PS + unilateral iliac screw fixation (UIS); 4) PS + UIS + 3 contralateral unilateral SIJ screws (UIS + 3SIJ); 5) PS + 3 unilateral SIJ screws (3SIJ); and 6) PS + 6 bilateral SIJ screws (6SIJ). A custom-built 6 degrees-of-freedom apparatus was used to simulate three bending modes: flexion-extension (FE), lateral bending (LB), and axial rotation (AR). Range of motion (ROM) was recorded at L5–S1 and the SIJ.RESULTSAll six operative constructs had significantly reduced ROM at L5–S1 in all three bending modes compared to that of the intact specimen (p < 0.05). In the FE mode, the BIS construct had a significant reduction in L5–S1 ROM as compared to the other five constructs (p < 0.05). SIJ ROM was greatest in the FE mode compared to LB and AR. Although the FE mode did not show any statistically significant differences in SIJ ROM across the constructs, there were appreciable differences. The PS construct had the highest SIJ ROM. The BIS construct reduced bilateral SIJ ROM by 44% in comparison to the PS construct. The BIS and 6SIJ constructs showed reductions in SIJ ROM nearly equal to those of the PS construct. UIS and 3SIJ showed an appreciable reduction in unfused SIJ ROM compared to PS.CONCLUSIONSThis investigation demonstrated the effects of various fusion constructs using pelvic and sacroiliac fixation in lumbosacral fusion. This study adds biomechanical evidence of adjacent segment stress in the SIJ in fusion constructs extending to S1. Unilateral pelvic fixation, or SIJ fusion, led to an appreciable but nonsignificant reduction in the ROM of the unfused contralateral SIJ. Bilateral pelvic fixation showed the greatest significant reduction of movement at L5–S1 and was equivalent to bilateral sacroiliac fusion in reducing SIJ motion.
The use of folic acid in the prevention of spinal bifida
Authors: Morgan Eghosa , Akpede Nosa , Osagiede Emmanuel Friday , Ajekweneh Vivian , Erah Francis , Momoh Victoria Aishetu , Momoh Mohammed Irumhekhai , Morgan Ezemwenghian Aikomien , Osagiede Ese Tracy 
Published: June 2019

Background. Spinal Bifida is a congenital malformation of the spine that typified defect of the neural tube with devastating neurological, psychosocial and developmental burden to the growing child with associated huge financial burden to the parents, community and the country. Past and present studies have shown strong evidence to indicate that folic acid supplementation during the periconceptional period reduces the occurrence of spinal bifida in children.Aim. To assess the knowledge, attitude, and practice of use of folic acid during the periconceptional period among women of childbearing age in two rural communities in Edo State, Nigeria.Materials and methods. A prospective cross-sectional study of 170 women between the ages of 15 and 49 years recruited through a multi-stage sampling technique. The survey instrument was a structured interviewer-administered questionnaire. The data was analysed using Statistical Package for Social Sciences (SPSS) version 21 and presented as charts, tables, and associations tested with Chi-square at a statistical level of significance set at p<0.05.Results. One hundred and twenty-two (71.8%) of the respondents showed good knowledge, 147(86.5%) had a positive attitude, and 106 (62.4%) had a good practice of use of folic acid. There was a statistically significant association between respondents’ age, marital status, level of education, occupation, and their knowledge of the use of folic acid as well as with their attitude towards the use of folic acid. However, the practice was mainly associated with the socio-demographic variable of each household.Conclusion. The use of folic acid during the perinatal period for the prevention of spinal bifida is found to be absent in about two-fifths of the study population, a number found to be alarming despite the high level of good knowledge and attitude towards the use of folic acid. There is, therefore, an urgent need to step up more advocacy and health education to women of childbearing age to increase the uptake of folic acid for effective reduction of the incidence of spinal bifida.
Educlips: proyecto de alfabetización mediática en el ámbito universitario
Authors: Renes-Arellano Paula , Carmen Caldeiro-Pedreira Mari , Rodríguez-Rosell María del Mar , Aguaded Ignacio 
Published: June 2019

Los nuevos modelos sociales de alfabetización mediática están generando transformaciones en los procesos comunicativos y en los modos de comprender la realidad en la que vivimos. El marco universitario en el que se prepara a los futuros profesionales, parece convertirse en el espacio ideal para promover procesos educativos de alfabetización mediática. Este trabajo pretende, desde un carácter pedagógico y educativo, mostrar el proyecto EDUCLIPS, con el objetivo de promover entre estudiantes universitario del ámbito español el desarrollo de la competencia mediática, la actitud crítica y responsable. La finalidad de esta iniciativa es favorecer la producción y realización audiovisual de todas aquellas propuestas desarrolladas por universitarios, centradas en temas educativos de actualidad como son la igualdad y el acoso escolar a través de las redes. Por ello, se intenta concienciar de la necesidad de producir y difundir imágenes y contenidos de manera responsable, un elemento necesario en la sociedad digitalizada actual en la que en ocasiones, la falta de procesos reflexivos y de intervenciones educativas propician la aparición de problemas asociados al uso inadecuado de los medios entre jóvenes. En los resultados finales se muestran algunos de los recursos audiovisuales creados por algunos estudiantes universitarios del ámbito nacional y que fueron más valorados en las ediciones 2014 y 2017, proporcionando de esta manera un repositorio de producciones audiovisuales que pueden ser utilizados en actividades docentes cotidianas.
O assédio em nome do bem: Dos sofrimentos conectados à dor moral coletiva de vítimas de desastres
Authors: Valencio Norma , Valencio Arthur 
Published: June 2019

Os estudos sociais, no tema de desastres, têm recorrentemente demonstrado que há formas impróprias, de certos atores, em lidar com as vítimas. A partir de um panorama sobre a diversidade de atores, que podem estar implicados emum desastre, este estudo sociológico focaliza dois aspectos principais deste problema: a diversidade de características de sofrimentos das vítimas; e as interações sociais, que resultam em assédio das mesmas. As interações foram analisadasa partir de três grupos de atores: técnicos em emergência, organizações humanitária e similares e, por fim, meios de comunicação de massa. Com base em revisão de literatura sobre ocorrência de desastres, em uma abordagem social, são delineados frameworks, que permitem visualizar o conjunto de conexões. Tais conexões podem auxiliar na compreensão, tanto das relações sociais complexas entre diferentes formas de sofrimento, quanto no que se refere à identificação de circunstâncias de assédio, às vítimas de desastres.