bluuebunny/crossref_metadata_2025_split huggingface dataset:
Wide-neck aneurysms: systematic review of the neurosurgical literature with a focus on definition and clinical implications
Authors: Hendricks Benjamin K. , Yoon James S. , Yaeger Kurt , Kellner Christopher P. , Mocco J , De Leacy Reade A. , Ducruet Andrew F. , Lawton Michael T. , Mascitelli Justin R. 
Published: June 2019

OBJECTIVEWide-necked aneurysms (WNAs) are a variably defined subset of cerebral aneurysms that require more advanced endovascular and microsurgical techniques than those required for narrow-necked aneurysms. The neurosurgical literature includes many definitions of WNAs, and a systematic review has not been performed to identify the most commonly used or optimal definition. The purpose of this systematic review was to highlight the most commonly used definition of WNAs.METHODSThe authors searched PubMed for the years 1998–2017, using the terms “wide neck aneurysm” and “broad neck aneurysm” to identify relevant articles. All results were screened for having a minimum of 30 patients and for clearly stating a definition of WNA. Reference lists for all articles meeting the inclusion criteria were also screened for eligibility.RESULTSThe search of the neurosurgical literature identified 809 records, of which 686 were excluded (626 with < 30 patients; 60 for lack of a WNA definition), leaving 123 articles for analysis. Twenty-seven unique definitions were identified and condensed into 14 definitions. The most common definition was neck size ≥ 4 mm or dome-to-neck ratio < 2, which was used in 49 articles (39.8%). The second most commonly used definition was neck size ≥ 4 mm, which was used in 26 articles (21.1%). The rest of the definitions included similar parameters with variable thresholds. There was inconsistent reporting of the precise dome measurements used to determine the dome-to-neck ratio. Digital subtraction angiography was the only imaging modality used to study the aneurysm morphology in 87 of 122 articles (71.3%).CONCLUSIONSThe literature has great variability regarding the definition of a WNA. The most prevalent definition is a neck diameter of ≥ 4 mm or a dome-to-neck ratio of < 2. Whether this is the most appropriate and clinically useful definition is an area for future study.
Significance of degree of neurovascular compression in surgery for trigeminal neuralgia
Authors: Hughes Marion A. , Jani Ronak H. , Fakhran Saeed , Chang Yue-Fang , Branstetter Barton F. , Thirumala Parthasarathy D. , Sekula Raymond F. 
Published: June 2019

OBJECTIVEThe aim of this study was to identify preoperative imaging predictors of surgical success in patients with classic trigeminal neuralgia (cTN) undergoing microvascular decompression (MVD) via retrospective multivariate regression analysis.METHODSAll included patients met criteria for cTN and underwent preoperative MRI prior to MVD. MR images were blindly graded regarding the presence and severity (i.e., mild or severe) of neurovascular compression (NVC). All patients were contacted by telephone to determine their postoperative pain status.RESULTSA total of 79 patients were included in this study. Sixty-two patients (78.5%) were pain-free without medication following MVD. The following findings were more commonly observed with the symptomatic nerve when compared to the contralateral asymptomatic nerve: NVC (any form), arterial compression alone, NVC along the proximal trigeminal nerve, and severe NVC (p values < 0.0001). The only imaging variable that was a statistically significant predictor of being pain-free without medication following MVD was severe NVC. Patients with severe NVC were 6.36 times more likely to be pain-free following MVD compared to those without severe NVC (p = 0.007).CONCLUSIONSIn patients with cTN undergoing MVD, severe NVC on preoperative MRI is a strong predictor of an excellent surgical outcome.
The atlantoaxial capsular ligaments and transverse ligament are the primary stabilizers of the atlantoaxial joint in the craniocervical junction: a finite element analysis
Authors: Phuntsok Rinchen , Provost Chase W. , Dailey Andrew T. , Brockmeyer Douglas L. , Ellis Benjamin J. 
Published: June 2019

OBJECTIVEPrior studies have provided conflicting evidence regarding the contribution of key ligamentous structures to atlantoaxial (AA) joint stability. Many of these studies employed cadaveric techniques that are hampered by the inherent difficulties of testing isolated-injury scenarios. Analysis with validated finite element (FE) models can overcome some of these limitations. In a previous study, the authors completed an FE analysis of 5 subject-specific craniocervical junction (CCJ) models to investigate the biomechanics of the occipitoatlantal joint and identify the ligamentous structures essential for its stability. Here, the authors use these same CCJ FE models to investigate the biomechanics of the AA joint and to identify the ligamentous structures essential for its stability.METHODSFive validated CCJ FE models were used to simulate isolated- and combined ligamentous–injury scenarios of the transverse ligament (TL), tectorial membrane (TM), alar ligament (AL), occipitoatlantal capsular ligament, and AA capsular ligament (AACL). All models were tested with rotational moments (flexion-extension, axial rotation, and lateral bending) and anterior translational loads (C2 constrained with anterior load applied to the occiput) to simulate physiological loading and to assess changes in the atlantodental interval (ADI), a key radiographic indicator of instability.RESULTSIsolated AACL injury significantly increased range of motion (ROM) under rotational moment at the AA joint for flexion, lateral bending, and axial rotation, which increased by means of 28.0% ± 10.2%, 43.2% ± 15.4%, and 159.1% ± 35.1%, respectively (p ≤ 0.05 for all). TL removal simulated under translational loads resulted in a significant increase in displacement at the AA joint by 89.3% ± 36.6% (p < 0.001), increasing the ADI from 2.7 mm to 4.5 mm. An AACL injury combined with an injury to any other ligament resulted in significant increases in ROM at the AA joint, except when combined with injuries to both the TM and the ALs. Similarly, injury to the TL combined with injury to any other CCJ ligament resulted in a significant increase in displacement at the AA joint (significantly increasing ADI) under translational loads.CONCLUSIONSUsing FE modeling techniques, the authors showed a significant reliance of isolated- and combined ligamentous–injury scenarios on the AACLs and TL to restrain motion at the AA joint. Isolated injuries to other structures alone, including the AL and TM, did not result in significant increases in either AA joint ROM or anterior displacement.
Sistem Informasi Perumahan pada PT. MAHKOTA HUTAMA PROPERTI Berbasis Web
Authors: Devega Mariza , Nasution Nurliana , Saputri Ria 
Published: June 2019

Objek penelitian ini adalah PT. Mahkota Hutama Properti yang beralamat di jalan Satria perumahan mahkota garden blok B 18 Pekanbaru. PT. Mahkota Hutama Properti adalah salah satu perusahaan yang bergerak dibidang penjualan rumah. Proses transaksi penjualan rumah pada PT. Mahkota Hutama Properti masih dilakukan secara manual. Pembuatan aplikasi ini bertujuan untuk membantu perusahaan dan konsumen mendapatkan informasi mengenai perumahan yang dijual dan memudahkan dalam pemesanan rumah dan pembayaran konsumen nantinya. Metode perancangan dalam penelitian ini menggunakan Unified modeding Language (UML). Hasil dari perancangan sistem informasi ini diharapkan mampu meningkatkan omset penjualan sekaligus memberikan kemudahan dalam hal pembuatan laporan, pendataan dan keamaanan dalam pencatatan data yang sudah terkomputerisasi bagi PT. Mahkota Hutama Properti.
Analyzing leakage of personal information by malware
Authors: Urban Tobias , Tatang Dennis , Holz Thorsten , Pohlmann Norbert 
Published: June 2019

Advertisements are the fuel that runs many online services such as websites or mobile apps, but also adversaries started to abuse ads for financial gains. Nowadays, online advertising companies track users all over the web in order to create successful online ads campaigns specifically tailored for a target audience. A popular phenomenon on the Internet, so-called adware, abuses online advertisements by maliciously injecting or replacing ads on websites. As many consider ads to be quite privacy intrusive, much work has gone into studying the effects of online advertisements on users’ privacy. However, only little work has been done so far into analyzing the privacy implications of adware. In this work, we shed light on the capabilities, mainly concerning tracking and personal data exfiltrating, of adware and potentially unwanted programs (PUPs), at scale. To this end, we capture the communication of adware/PUPs in the Firefox browser on the application level to circumvent lower-level encryption (e.g., TLS). Using this framework for capturing the network traffic, we dynamically analyze the communication of over 16,000 adware or potentially unwanted program samples. We find that around 37% of requests issued by the analyzed samples contain some kind of personal information. Furthermore, we identify the services used by adversaries and provide insights on the used tracking techniques.
Long Term Response to Levodopa in Parkinson’s Disease
Authors: Gupta Harsh V. , Lyons Kelly E. , Wachter Nathaniel , Pahwa Rajesh 
Published: June 2019

Background: Levodopa is the most efficacious medication in controlling the motor symptoms of Parkinson’s disease (PD). There continues to be a controversy as to whether levodopa remains effective after years of therapy. Objective: To assess the long-term effectiveness of levodopa in PD patients. Methods: The response to levodopa in PD patients undergoing a levodopa challenge for deep brain stimulation (DBS) surgery evaluation from June 1997 through March 2017 were evaluated. The patients were broken into four groups based on disease duration (Group I: 0– 5 years, Group II: 6– 10 years, Group III: 11– 15 years, and Group IV:≥16 years). Levodopa response was calculated based on the changes in Unified Parkinson’s Disease Rating Scale (UPDRS) motor and activities of daily living (ADL) scores in the medication ON and OFF states. Results: A total of 361 PD patients were included. The mean age in Group I was 59.4 years with a mean disease duration of 3.9 years ( n = 29), Group II was 61 years with a mean disease duration of 8.1 years ( n = 131), Group III was 64 years with a mean disease duration of 12.8 years ( n = 143), and IV was 66.5 years with a mean disease duration of 18.5 years ( n = 58). There was a significant improvement in UPDRS motor and ADL scores after the levodopa challenge for all groups. Conclusions: In a subgroup of PD patients who were evaluated for DBS surgery, there was a marked improvement in UPDRS motor and ADL scores which did not decrease with disease progression.
Stress behaviours of viscoelastic flow around square cylinder
Authors: TEZEL Guler Bengusu , YAPICI Kerim , ULUDAG Yusuf 
Published: June 2019

In this study, it is
aimed the numerically investigation of the flow of liner PTT
(Phan-Thien-Tanner) fluid, which is a viscoelastic fluid model over limited
square obstacle by finite volume method. The finite volume method has been used
for simultaneous solution of continuity, momentum and fluid model equations
with appropriate boundary conditions. The effects of the inertia in terms of Reynolds number, Re, (0 &lt; Re &lt; 20) and the of elasticity
in terms of Weissenberg number, We,
(1 &lt; We &lt; 15) of PTT flow on vertical and shear stress areas are
examined in detail.
Accurate Estimation of Frequency-Dependent Losses in High Voltage Test Transformers for the Assessment of Electric Discharge Powers
Authors: Laroussi Kada , Flazi Samir 
Published: June 2019

The work presented in this paper is related to the project GEMUDE (Genérateur Multifonction de Décharge Electrique) which aims to design a universal high-voltage generator for electrical discharge studies. To design this variable high voltage source that operates in the frequency range of 0 to 1 kHz, the assessment of transformer losses represents a crucial phase during the design process. These losses in the coils and iron core of the transformer are closely related to the frequency and nature of the materials used. This paper presents a comparative study of transformer losses using analytical methods and experimental calorimetry measurements. Steinmetz empirical formula is used to estimate magnetic core losses whereas coil losses are evaluated by solving Maxwell equations. The main goal is to control these losses to limit the internal temperature rise in the transformer through the implementation of an efficient cooling solution. The results obtained by the analytical method were satisfactory which confirm the feasibility of measuring the power absorbed by the various electrical discharge devices upstream of the high-voltage transformer. This is because it turns out that the power of the generator in charge is the total power of the electric discharge and the transformer losses. This method, termed Power Disparity Method (PDM). In this paper, it is an easy and reliable way as compared with high voltage measurement methods.
Agresiones contra los profesionales de la salud en los servicios de urgencias
Authors: Fajardo Zapata Álvaro L. 
Published: June 2019

Identificar las agresiones contra los médicos y enfermeras en los servicios de urgencias por parte de los usuarios del sistema de salud. Materiales y métodos: Estudio descriptivo transversal. Se realizó un muestreo no probabilístico de tipo intencional por unidad hospitalaria tomando en consideración la agrupación por redes de la ciudad. Se aplicó una encuesta voluntaria y personal a médicos (120) y enfermeras (120) de los servicios de urgencias de las cuatro redes públicas de Bogotá.
Concepções teóricas e metodológicas do cuidado transdisciplinar: uma revisão integrativa
Authors: Bertolossi Marta Cristiano , Rangel Teixeira Enéas , Ribeiro Francisco Márcio Tadeu , Nunes Ferreira Carlos Eduardo , Oliveira da Silva Priscilla , Lyra da Silva Carlos Roberto , Araújo de Lima Tatiana , Hommerding Frasson Patrícia Xavier , Dos Santos Silva Monyque Evelyn , Gerstenberger Júnior Otto Guilherme , Nunes Alves Raphaela , Lyra da Silva Roberto Carlos , Barbosa Nassar Pedro Ruiz 
Published: June 2019

Introdução: Objetivou-se realizar um levantamento da produção científica na enfermagem e suas interfaces sobre as concepções teóricas e metodológicas do cuidado e discutir o cuidado na enfermagem e suas interfaces na perspectiva da complexidade em atitude transdisciplinar.Métodos: Trata-se de uma revisão integrativa que utilizou o Portal de Periódicos da CAPES, no período entre 2005 e 2015.
EVALUACIÓN DE LA POBLACIÓN DE Athyonidium chilensis Y PARÁMETROS FÍSICO-QUÍMICOS EN PLAYITA BRAVA TACNA
Authors: Delgado Cabrera Freddy Walter , Espinoza Ramos Luis Antonio , Quispe Pilco Calixto 
Published: June 2019

El presente artículo responde a un proyecto de investigación cuyo objetivo general fue evaluar la población de la holoturia pepino de mar (Athyonidium chilensis) así como medir, de acuerdo a los métodos estándar de la AWWA, los parámetros físico-químicos y biológicos de la zona de Playita Brava del litoral de Tacna.Se llegó a la conclusión de que existe una dispersión en la población de holoturia pepino de mar (Athyonidium chilensis) en la zona donde se desarrolló el estudio, determinándose que no hay una correlación entre su longitud y su peso (variables dependientes); en consecuencia, se trata de una población variable. Por otro lado, los parámetros físico-químicos están dentro del rango permisible para el desarrollo de holoturia pepino de mar; sin embargo, el factor físico de temperatura presenta una anomalía térmica de hasta 2°C según se observó en el muestreo realizado el 19/05/14, y de 1°C en el muestreo del 04/06/14. Por último, en base a referencias del año 2013 (Informe Envirolab Perú S.A.C.), el fitoplancton presente en Playita Brava está compuesto por divisiones como Bacyllarophyta, Pyrrofhyta, Chrysophita y Euglenophyta, destacando los géneros Lephoylinchus discus (20 cel/l) y Navicula (22 cel/l); en cuanto al zooplancton, destaca el Phyllum Artropoda, dando 5 y 100 organismos/muestra respectivamente en 5 litros.
EVALUACIÓN DEL RENDIMIENTO EN OPERACIONES BÁSICAS DE TABLAS HASH FRENTE A LOS ARREGLOS EN ESTRUCTURA DE DATOS
Authors: Vega Cueva Victor Hugo 
Published: June 2019

Los datos almacenados en estructuras de tipo tabla hash alcanzan un mejor rendimiento en operaciones básicas como inserción, actualización, eliminación y búsqueda de datos; puesto que su nivel de complejidad para realizar operaciones simples es de O(1) en la “notación O grande”. Esto hace entender que el tiempo que esta estructura de datos utiliza para dar un resultado es constante; por otro lado, mientras el desempeño de los arreglos de datos tiene un valor de O(n), significa que dicho desempeño está fuertemente ligado a la cantidad de datos que almacene. En consecuencia, se puede afirmar que el uso de tablas hash en casos específicos presenta una amplia mejora en el rendimiento frente a los arreglos de datos.
HUBUNGAN KUALITAS TIDUR DENGAN TINGKAT KECEMASAN PADA PASIEN TERPASANG INFUS DI RUANG RAWAT INAP INTERNE RSUD DR. ACHMAD MOCHTAR BUKITINGGI
Authors: Demur Dia Resti Dewi Nanda 
Published: June 2019

Abstract
According to WHO (World Health Organization, 2010) each year is estimated about 20% - 50% adults reported a sleep disorder and about 17% suffered serious sleep disorders. The purpose of this study was to determine association of sleep quality towards anxiety level with IV Catheter Therapy in Medical Internal Ward General Hospital Dr Achmad Mochtar Bukittinggi 2018. This research using descriptive analytic approach with cross sectional design. Data were processed with Chi Square test. The sample in this research are 63 respondents. Tool data collection using questionnaires. The data analysis of univariate more than half are 30 respondents (47,6%) has a good sleep quality and 33 respondents (52,4%) have bad sleep quality, more than half are 30 respondents (47,6%) have mild anxiety level and 33 respondents (52,4%) have a moderate anxiety level. There is a correlation bivariate analysis the existence of sleep quality to the level of anxiety With IV Catheter Therapy In Medical Internal Ward General Hospital Dr Achmad Mochtar Bukittinggi the value of p = 0,000. It is suggested that this research for general hospital Dr Achmad Mochtar Bukittinggi able to improve the quality of patient sleep and the characteristics anxiety levels where can be used as a basis for interving and improving nurses knowledge.
Keywords : Anxiety Level, Sleep Quality
GAMBARAN Candida albicans PADA BAK PENAMPUNG AIR DI TOILET SDN 17 BATU BANYAK KABUPATEN SOLOK
Authors: Indrayati Sri , Sari Reszki Intan 
Published: June 2019

Air merupakan bahan yang paling penting untuk kebutuhan manusia. Kegunaan air misalnya untuk keperluan masak, mencuci, mandi, dan lain lain. Tetapi selain bermanfaat ternyata air juga mempunyai peranan dalam penularan penyakit salah satunya adalah yang disebabkan oleh jamur Candida albicans. Jamur Candida albicans adalah organisme komensal dan flora normal yang berperan dalam keseimbangan mikroorganisme dalam tubuh kita, serta ditemukan dalam traktus intestinal, kulit, dan traktus genito urinaria. Keseimbangan flora normal tergantung dari berbagai faktor predisposisi yang dapat meningkatkan jumlah populasi, sehingga dapat menimbulkan penyakit yang disebut Kandidiasis. Penelitian ini bertujuan untuk mengetahui gambaran Candida albicans pada bak penampung air toilet di SDN 17 Batu Banyak Kabupaten Solok. Penelitian ini telah dilakukan pada Bulan Februari- Juni 2018 di Balai Laboratorium Kesehatan Padang. Penelitian ini dilakukan terhadap 3 bak penampung air di Toilet SDN 17 Batu Banyak Kabupaten Solok. Penelitian ini menggunakan metode bersifat deksriptif. Pemeriksaan dan pengamatan dilakukan secara makroskopis menggunakan media Potato Dextrose Agar dan dilanjutkan dengan pengamatan secara mikroskopis menggunakan pewarnaan gram. Hasil penelitian menunjukkan bahwa semua sampel air bak penampung yang diperiksa didapatkan hasil negatif mengandung jamur Candida albicans.
Initial single centre experience with Barrel VRD stent in large neck aneurisms
Authors: Mihalea Cristian , Humulescu Felicia Otilia , Abdelkhalek Hazem , Pescariu Sorin , Popa Bogdan Valeriu , Ples Horia 
Published: June 2019

Introduction. Despite the use of new techniques, such as Y-stenting, the waffle-cone technique and intrasaccular flow disrupters the treatment of wide-neck bifurcation aneurysms is still challenging, especially for those where adjacent branches are arising at the neck level. Moreover, the use of flow diverter stents in bifurcation aneurysms has been proposed by several teams, although the results remain controversial.This study is reflecting initial experience in our department with a relatively new device available on the market: Barrel VRD stent. The unique design feature of the device is the “belly-like” central part of the stent which protects the adjacent branches.Methods. We retrospectively reviewed all patients in whom stenting with braided or laser-cut stents had been performed in our center. Three patients were identified and analyzed. Technical success, complications, immediate angiographic outcomes, procedural data, are reported here.Results. One MCA bifurcation and two basilar tip large neck aneurysms with one branch arising from the neck level have been identified. Technical success was achieved in all procedures. Overall procedure-related morbidity and mortality was 0%. In the immediate post-treatment angiography, adequate occlusion (neck remnant or total occlusion) was observed in all patients. Short- and mild-term follow-up angiography showed adequate occlusion of the aneurysms.Conclusions. In this small case series, retrospective single-center analysis we showed that Barrel VRD - stent assisted coiling is a safe and feasible technique. Moreover, it offers an elegant and effective endovascular solution for large neck basilar tip aneurysms on which the neurosurgical clipping remains challenging.
Vulnerabilidad infantil ante los smartphones: en busca de la competencia parental positiva
Authors: Ramírez García Antonia , Gonzalez Fernandez Natalia , Salcines Talledo Irina 
Published: June 2019

Los dispositivos móviles como los smartphones, están determinando y repercutiendo en muchas de las dinámicas familiares y comunicacionales entre padres e hijos. El uso que los propios progenitores realizan de dicho dispositivo, en muchas ocasiones, puede generar vulnerabilidad en los menores. En este artículo se presenta una investigación cualitativa, en la que se ha realizado un análisis documental de las investigaciones nacionales e internacionales sobre la temática con la finalidad de identificar los riesgos a los que se enfrentan los menores cuando los progenitores utilizan el Smartphone en el contexto familiar. Los resultados destacan, entre las principales problemáticas los accidentes de tráfico, y la repercusión de la frecuencia de uso del dispositivo en las distracciones parentales y los efectos negativos sobre las relaciones paterno-filiares.