bluuebunny/crossref_metadata_2025_split huggingface dataset:
Treatment of posterior circulation fusiform aneurysms
Authors: Church Ephraim W. , Bigder Mark G. , Sussman Eric S. , Gummidipundi Santosh E. , Han Summer S. , Heit Jeremy J. , Do Huy M. , Dodd Robert L. , Marks Michael P. , Steinberg Gary K. 
Published: October 2020

OBJECTIVE
Perforator arteries, the absence of an aneurysm discrete neck, and the often-extensive nature of posterior circulation fusiform aneurysms present treatment challenges. There have been advances in microsurgical and endovascular approaches, including flow diversion, and the authors sought to review these treatments in a long-term series at their neurovascular referral center.

METHODS
The authors performed a retrospective chart review from 1990 to 2018. Primary outcomes were modified Rankin Scale (mRS) scores and Glasgow Outcome Scale (GOS) scores at follow-up. The authors also examined neurological complication rates. Using regression techniques, they reviewed independent and dependent variables, including presenting features, aneurysm location and size, surgical approach, and pretreatment and posttreatment thrombosis.

RESULTS
Eighty-four patients met the inclusion criteria. Their mean age was 53 years, and 49 (58%) were female. Forty-one (49%) patients presented with subarachnoid hemorrhage. Aneurysms were located on the vertebral artery (VA) or posterior inferior cerebellar artery (PICA) in 50 (60%) patients, basilar artery (BA) or vertebrobasilar junction (VBJ) in 22 (26%), and posterior cerebral artery (PCA) in 12 (14%). Thirty-one (37%) patients were treated with microsurgical and 53 (63%) with endovascular approaches. Six aneurysms were treated with endovascular flow diversion. The authors found moderate disability or better (mRS score ≤ 3) in 85% of the patients at a mean 14-month follow-up. The GOS score was ≥ 4 in 82% of the patients. The overall neurological complication rate was 12%. In the regression analysis, patients with VA or PICA aneurysms had better functional outcomes than the other groups (p < 0.001). Endovascular strategies were associated with better outcomes for BA-VBJ aneurysms (p < 0.01), but microsurgery was associated with better outcomes for VA-PICA and PCA aneurysms (p < 0.05). There were no other significant associations between patient, aneurysm characteristics, or treatment features and neurological complications (p > 0.05). Patients treated with flow diversion had more complications than those who underwent other endovascular and microsurgical strategies, but the difference was not significant in regression models.

CONCLUSIONS
Posterior circulation fusiform aneurysms remain a challenging aneurysm subtype, but an interdisciplinary treatment approach can result in good outcomes. While flow diversion is a useful addition to the armamentarium, traditional endovascular and microsurgical techniques continue to offer effective options.
Raman spectroscopy to differentiate between fresh tissue samples of glioma and normal brain: a comparison with 5-ALA–induced fluorescence-guided surgery
Authors: Livermore Laurent J. , Isabelle Martin , Bell Ian M. , Edgar Oliver , Voets Natalie L. , Stacey Richard , Ansorge Olaf , Vallance Claire , Plaha Puneet 
Published: October 2020

OBJECTIVE
Raman spectroscopy is a biophotonic tool that can be used to differentiate between different tissue types. It is nondestructive and no sample preparation is required. The aim of this study was to evaluate the ability of Raman spectroscopy to differentiate between glioma and normal brain when using fresh biopsy samples and, in the case of glioblastomas, to compare the performance of Raman spectroscopy to predict the presence or absence of tumor with that of 5-aminolevulinic acid (5-ALA)–induced fluorescence.

METHODS
A principal component analysis (PCA)–fed linear discriminant analysis (LDA) machine learning predictive model was built using Raman spectra, acquired ex vivo, from fresh tissue samples of 62 patients with glioma and 11 glioma-free brain samples from individuals undergoing temporal lobectomy for epilepsy. This model was then used to classify Raman spectra from fresh biopsies from resection cavities after functional guided, supramaximal glioma resection. In cases of glioblastoma, 5-ALA–induced fluorescence at the resection cavity biopsy site was recorded, and this was compared with the Raman spectral model prediction for the presence of tumor.

RESULTS
The PCA-LDA predictive model demonstrated 0.96 sensitivity, 0.99 specificity, and 0.99 accuracy for differentiating tumor from normal brain. Twenty-three resection cavity biopsies were taken from 8 patients after supramaximal resection (6 glioblastomas, 2 oligodendrogliomas). Raman spectroscopy showed 1.00 sensitivity, 1.00 specificity, and 1.00 accuracy for predicting tumor versus normal brain in these samples. In the glioblastoma cases, where 5-ALA–induced fluorescence was used, the performance of Raman spectroscopy was significantly better than the predictive value of 5-ALA–induced fluorescence, which showed 0.07 sensitivity, 1.00 specificity, and 0.24 accuracy (p = 0.0009).

CONCLUSIONS
Raman spectroscopy can accurately classify fresh tissue samples into tumor versus normal brain and is superior to 5-ALA–induced fluorescence. Raman spectroscopy could become an important intraoperative tool used in conjunction with 5-ALA–induced fluorescence to guide extent of resection in glioma surgery.
Microneurosurgical removal of thalamic lesions: surgical results and considerations from a large, single-surgeon consecutive series
Authors: Serra Carlo , Türe Hatice , Yaltırık Cumhur Kaan , Harput Mehmet Volkan , Türe Uğur 
Published: October 2020

OBJECTIVE
The object of this study was to present the surgical results of a large, single-surgeon consecutive series of patients who had undergone transcisternal (TCi) or transcallosal-transventricular (TCTV) endoscope-assisted microsurgery for thalamic lesions.

METHODS
This is a retrospective study of a consecutive series of patients harboring thalamic lesions and undergoing surgery at one institution between February 2007 and August 2019. All surgical and patient-related data were prospectively collected. Depending on the relationship between the lesion and the surgically accessible thalamic surfaces (lateral ventricle, velar, cisternal, and third ventricle), one of the following surgical TCi or TCTV approaches was chosen: anterior interhemispheric transcallosal (AIT), posterior interhemispheric transtentorial subsplenial (PITS), perimedian supracerebellar transtentorial (PeST), or perimedian contralateral supracerebellar suprapineal (PeCSS). Since January 2018, intraoperative MRI has also been part of the protocol. The main study outcome was extent of resection. Complete neurological examination took place preoperatively, at discharge, and 3 months postoperatively. Descriptive statistics were calculated for the whole cohort.

RESULTS
In the study period, 92 patients underwent surgery for a thalamic lesion: 81 gliomas, 6 cavernous malformations, 2 germinomas, 1 metastasis, 1 arteriovenous malformation, and 1 ependymal cyst. In none of the cases was a transcortical approach adopted. Thirty-five patients underwent an AIT approach, 35 a PITS, 19 a PeST, and 3 a PeCSS. The mean follow-up was 38 months (median 20 months, range 1–137 months). No patient was lost to follow-up. The mean extent of resection was 95% (median 100%, range 21%–100%), and there was no surgical mortality. Most patients (59.8%) experienced improvement in their Karnofsky Performance Status. New permanent neurological deficits occurred in 8 patients (8.7%). Early postoperative (< 3 months after surgery) problems in CSF circulation requiring diversion occurred in 7 patients (7.6%; 6/7 cases in patients with high-grade glioma).

CONCLUSIONS
Endoscope-assisted microsurgery allows for the removal of thalamic lesions with acceptable morbidity. Surgeons must strive to access any given thalamic lesion through one of the four accessible thalamic surfaces, as they can be reached through either a TCTV or TCi approach with no or minimal damage to normal brain parenchyma. Patients harboring a high-grade glioma are likely to develop a postoperative disturbance of CSF circulation. For this reason, the AIT approach should be favored, as it facilitates a microsurgical third ventriculocisternostomy and allows intraoperative MRI to be done.
Odontoid screw placement for Anderson type II odontoid fractures: how do duration from injury to surgery and clinical and radiological factors influence the union rate? A multicenter retrospective study
Authors: Ricciardi Luca , Trungu Sokol , Scerrati Alba , De Bonis Pasquale , Rustemi Oriela , Mazzetto Mauro , Lofrese Giorgio , Cultrera Francesco , Barrey Cédric Y. , Di Bartolomeo Alessandro , Piazza Amedeo , Miscusi Massimo , Raco Antonino 
Published: October 2020

OBJECTIVEAnderson type II odontoid fractures are severe conditions, mostly affecting elderly people (≥ 70 years old). Surgery can be performed as a primary treatment or in cases of failed conservative management. This study aimed to investigate how duration from injury to surgery, as well as clinical, radiological, and surgical risk factors, may influence the union rate after anterior odontoid screw placement for Anderson type II odontoid fractures.METHODSThe authors conducted a retrospective multicenter study. Demographic, clinical, surgical, and radiological data of patients who underwent anterior odontoid screw placement for Anderson type II fractures were retrieved from institutional databases. Study exclusion criteria were prolonged corticosteroid drug therapy (> 4 weeks), polytraumatic injuries, oncological diagnosis, and prior cervical spine trauma.RESULTSEighty-five patients were included in the present investigation. The union rate was 76.5%, and 73 patients (85.9%) did not report residual instability. Age ≥ 70 years (p < 0.001, OR 6), female gender (p = 0.016, OR 3.61), osteoporosis (p = 0.009, OR 4.02), diabetes (p = 0.056, OR 3.35), fracture diastasis > 1 mm (p < 0.001, OR 8.5), and duration from injury to surgery > 7 days (p = 0.002, OR 48) independently influenced union rate, whereas smoking status (p = 0.677, OR 1.24) and odontoid process angulation > 10° (p = 0.885, OR 0.92) did not.CONCLUSIONSAlthough many factors have been reported as influencing the union rate after anterior odontoid screw placement for Anderson type II fractures, duration from injury to surgery > 7 days appears to be the most relevant, resulting in a 48 times higher risk for nonunion. Early surgery appears to be associated with better radiological outcomes, as reported by orthopedic surgeons in other districts. Prospective comparative clinical trials are needed to confirm these results.
La eseñanza de técnología IPTV en la implementación del servicio de audio y video
Authors: Quijije Pablo Augusto , Landacay Cristian Mauricio , Yepez César 
Published: October 2020

El presente trabajo comienza con el estudio de la tecnología IPTV y el conocimiento del equipamiento instalado en la red inalámbrica Punto Multipunto de la Empresa CELERITEL que es un Proveedor de Servicio de Internet Inalámvrico (WISP), cuyo nodo principal se ubica en el Cantón General Villamil Playas. A continuación se realiza las pruebas de transmitir archivos mutimedia en formato .avi y .mpg, con la ayuda de la aplicación Windows Media Player que se instala y ejecuta en dos computadoras ubicadas en el lado del transmisor y en el lado del receptor. En los equipos Cambium se realizó la configuración para que funcionen en modo multicast que permite el uso eficiente del ancho de banda. En el lado del receptor se mide la calidad del servicio de audio y video mediante los parámetros de red como latencia, jitter, paquetes perdidos, ancho de banda, tiempos de conexión y los niveles de indicadores de los equipos de radiofrecuecncia. Todos los parámetros son aceptables para la trasnmisión, lo que se comprobó además es que los dos contenidos multimedia inyectados más el servicio de internet consumen toda la capacidad de la red inalámbrica que es 3Mbps segmentado para cada cliente. Al final se propone un Diseño de un Sistema IPTV que proveerá de programas en vivo, y con soporte de servicios VOD.
La capacitación formal en areas sociales para la inserción de un conjunto habitacional social
Authors: Vargas Juan Garcés , Villao Rodríguez Karina 
Published: October 2020

La presente intención se basa en realizar un artículo que busca: “optimizar la calidad de vida de la población guayaquileña”, mediante: “CONJUNTO HABITACIONAL SOCIAL “PUERTO PALMAR” EN LA CIUDAD DE GUAYAQUIL”, en donde se emplea como objetivo fundamental: “Garantizar el acceso a una vivienda apropiada, segura y digna”; entre las resoluciones, involucra “Promover la organización, responsabilidad familiar y comunitaria, para garantizar su participación en la obtención de residencia nueva o reformada, en el sostenimiento oportuno y adecuado de las viviendas, así como de sus entornos, para así evitar el detrimento y los consecuentes peligros”. A partir de la premisa, se arroja un análisis de tipo representativo que beneficiará al proponente para obtener el conocimiento, en zonas aledañas interesadas en hogares de interés social, con la finalidad de conocer la idea de comercialización de casas en “PUERTO PALMAR”.
La formación en comunidades ancestrales para el cultivo de tilapia en jaulas (oreochromissp. Y oreochromisnilóticus)
Authors: Duque Marín Richard , Cuenca Zambrano Mayra 
Published: October 2020

La represa de San Vicente, está situada en la cuenca alta del río Javita al noroeste de la Provincia de Santa Elena. Es una represa de tierras de 25 m de altura que embalsa unos 40 Hm3que se distribuirá a través de canales para conducir el líquido vital por gravedad, favoreciendo a las comunidades ubicadas en varios sectores como: Colonche, San Marcos, Bellavista, Manantial de Guangala, Manantial de Colonche, Jambelí, Palmar, Bambil Desecho, Rio Seco, Aguadita y Cerezal, se establece que serían 26.000 las hectáreas que se beneficiarían en la provincia de Santa Elena (CEDEGÉ, 1984). La Subsecretaría de Acuacultura, junto a los representantes del Ministerio del Litoral, Ambiente y los habitantes de las diferentes comunas de la Provincia de Santa Elena, presenciaron la siembra de 120.000 de los 500.000 alevines de tilapia donados por la compañía MODERCORP que fueron sembrados en la represa de San Vicente de Colonche. (SA, 2008). Las tilapias desde que fueron sembradas crecieron y se reproducen sin control alguno, generando una densidad poblacional alta, reduciendo el espacio de traslado de estos organismos en el cuerpo de agua.Como consecuencia de aquello las tallas han disminuido, afectando la disponibilidad del recurso en tallas mayores que satisfagan a los consumidores locales. Las pocas oportunidades de trabajo en las comunidades rurales, hace que se dediquen a otras actividades que la zona les brinda, teniendo como un complemento en el sustento diario la pesca en la Represa sin predecir o prevenir los riesgos que estos representan, es así que desde las primeras capturas de tilapias no han cesado ni han planificado su sustentabilidad.
PENGARUH MINAT BELAJAR DAN MOTIVASI BELAJAR TERHADAP HASIL BELAJAR MATEMATIKA SISWA KELAS VII SMP NEGERI 4 SIGI
Authors: Silfitrah Silfitrah , Mailili Wahyuni H 
Published: October 2020

This study aims to determine the effect of learning interest and learning motivation on students' cognitive learning outcomes in set material in Sigi 4 Public Middle School. The type of research used is expost factod with a population of all seventh grade students of SMP Negeri 4 Sigi which were registered in the 2017/2018 school year with 248 students. Technic sampling that is simple random sampling so the sample size was106 students.The data collection methods are questionnaire, documentation, and test methods.Analysis of the data using the product moment correlation test then followed by multiple regression tests .The results obtained by double linear regression were Y = 7.478 + 0.086 X₁ + 0.091X₂ . Based on the results of research and discussion of data analysis concluded that: (1) There is significant influence between interest in learning the learning outcomes of the mathematics class VII SMP Negeri 4 Sigi with
Applying and developing semantic web technologies for exploiting a corpus in history of science: The case study of the Henri Poincaré correspondence
Authors: Bruneau Olivier , Lasolle Nicolas , Lieber Jean , Nauer Emmanuel , Pavlova Siyana , Rollet Laurent 
Published: October 2020

The Henri Poincaré correspondence is a corpus of letters sent and received by this mathematician. The edition of this correspondence is a long-term project begun during the 1990s. Since 1999, a website is devoted to publish online this correspondence with digitized letters. In 2017, it has been decided to reforge this website using Omeka S. This content management system offers useful services but some user needs have led to the development of an RDFS infrastructure associated to it. Approximate and explained searches are managed thanks to SPARQL query transformations. A prototype for efficient RDF annotation of this corpus (and similar corpora) has been designed and implemented. This article deals with these three research issues and how they are addressed.
Estatuto de la Oposición
Authors: Serna Alzate Margarita María 
Published: October 2020

La presente cartilla surge en el marco del proyecto de investigación “Análisis jurídico sobre la aplicación del Estatuto de la Oposición en los Concejos Municipales de Pereira y Valledupar, durante el período comprendido entre el 2de enero y el 31 de julio de 2020”.
Esta cartilla tiene como propósito en primer lugar contextualizar al lector sobre el proceso normativo que se ha llevado a cabo para darle surgimiento a la Ley 1909 de 2018, en segundo lugar se hace una definición sobre el derecho fundamental de ejercer oposición y en tercer lugar se presentan las principales disposiciones de la ley tales como:
Acciones que deben ejecutar los partidos y movimientos políticos al momento de la entrada en vigencia de la ley.
Los derechos concedidos en el estatuto.
Los mecanismos para el ejercicio efectivo de los derechos a la oposición política.
Economic Valuation of Water Quality Condition Ogan River against the Clean Water in the District of Ogan Komering Ulu
Authors: Kartika Sari Enda , Lucyana Lucyana 
Published: October 2020

Sari EK, Lucyana L. 2020. Economic valuation of water quality condition ogan river against the clean water in the district of Ogan Komering Ulu. Jurnal Lahan Suboptimal : Journal of Suboptimal Lands 9(2): 139-148.Â The existence of the Ogan River has experienced a reduction in water quality, this is caused activities from the community such as disposing household waste and dumping industrial waste into the river. This fact causes the need of protecting the quality ofÂ Ogan river water by using Perusahaan Daerah Air Minum (PDAM) and shallow wells to fulfill the needs of clean water for the community. The use of shallow wells and PDAM caused economic losses to the community. They raise extra costs or replacement costs that must be paid by the community. The purpose of this study was to determine the community's perception of the impact of river water quality and to determine the cost of replacement by using the replacement cost method that must be spent by the community around the Ogan River Basin Ogan Komering Ulu Regency. The method used descriptive analysis, and a replacement cost approach for a year. The total population of 3,329 is family head (KK).Â The samples in this study amounted to 149 KK. The perception of people who want to improve the quality of the river Ogan by 90.6 percent and ofÂ 88.6 percent of the public said it would remain in the vicinity of the Ogan River despite the conditionÂ change or increasingly bad. . In this study was take the reason people remain 51 percent is due to an economic factor. Regarding the economic valuation of clean water aspects, 71.8 percent of the people use PDAM, 25.5 percent use well water and 2.7 percent use river water as a source of clean water. The estimated cost of replacement costs incurred for one year is Rp102,510,000 and the need for clean water is 20,502 m3/year. The total costs incurred by the community amounted to Rp 357,852,500.
Tendências metodológicas da pesquisa em ensino de química na revista “química nova na escola” - 1995 a 2017
Authors: Bedin Flávia Caroline , Da Silva Costa Franciellen Rodrigues , Lorencini Júnior Alvaro , Kiouranis Neide Maria Michellan 
Published: October 2020

Com o crescimento do Ensino de Química como área de conhecimento, cresce também a difusão dos trabalhos de pesquisa nela realizados. Uma vez que esse campo vem se consolidando, é importante compreendermos quais as tendências metodológicas têm sido empregadas. Para tanto, buscou-se investigar as publicações da seção “Pesquisa no Ensino de Química/Química em Foco” da revista Química Nova na Escola (QNEsc). Após a análise, observou-se que as pesquisas têm se caracterizado quanto ao caráter qualitativo, com a predominância do “estudo de caso”. Acredita-se que mesmo avançando quanto às questões metodológicas, ainda existem lacunas que precisam ser preenchidas para que as pesquisas sejam fortalecidas e ganhem cada vez mais espaço significativo no cenário científico.
Palavras-chave: QNEsc; Educação Química; Tendências Metodológicas.
IMPROVING STUDENTS’ SPEAKING ABILITY THROUGH TWO STAY – TWO STRAY OF FPBS IKIP MATARAM
Authors: Sumarsono Dedi , Bagis Abdul Kadir 
Published: October 2020

This research is aimed at knowing whether students’ speaking ability can be improved by using Two Stay - Two Stray and what are the strengths and weaknesses of Two Stay - Two Stray in teaching speaking in the second semester students of FPBS IKIP Mataram in the academic years of 2013/2014. This research uses Classroom Action Research (CAR) which is taken from Kemmis and McTanggart’s design; it consists of 2 cycles. Every cycle consists of four phases those are: planning, acting, observing, and reflecting. The subject of this research is the students in IId of FPBS IKIP Mataram. Field note, questionnaire, and test are used in collecting the data. There are three tests used in this research, they are: pre-test, post-test 1, and post-test 2 with the standard of students’ successful was 65. The findings of the research showed that (1) The students’ speaking ability improved; (2) Related to the field note results showed that the students were more confident and enthusiast in speaking. It can be seen from their participation in the class, in the conversation, and their performance in group work; and (3) Related to the questionnaire result, it is proved that the response of the students toward Two Stay – Two Stray in teaching speaking is 96%. Based on all those findings, it can be concluded that the application of Two Stay - Two Stray can improve the students’ speaking ability.