bluuebunny/crossref_metadata_2025_split huggingface dataset:
Implementando un Modelo de Desarrollo de Software Orientado a la Web para la Universidad Simón Bolívar - Sede Cúcuta
Authors: Angarita Carlos , Gallardo O 
Published: August 2017

El presente artítulo describe los aspectos generales del diseño del nuevo modelo de desarrollo de sistemas de información orientados a la web de la Universidad Simón Bolívar sede Cúcuta, así como la puesta en marcha de los primeros módulos de Gestión de Información Docente y Gestión Académica. Este proyecto hace uso de nuevas tecnologías de la información para satisfacer la variación de las necesidades de la sede, la cual se debe ajustar al crecimiento de la comunidad estudiantil que alcanzó más de cuatro mil estudiantes en tan solo 14 años. El nuevo modelo de desarrollo inició definiendo diversas políticas de diseño y seguridad, que originaron una estructura de desarrollo de software para la sede, la cual permitió un proceso ágil y una identidad institucional en los sistemas. El sistema de Gestión de Información Docente y Gestión Académica son dos de los primeros módulos que se realizaron en la sede, soportados en el nuevo modelo de desarrollo, cuyas características generales se explicaran en el presente trabajo. Finalmente se observa que el modelo cumple con las características definidas inicialmente y su estructura garantiza un buen nivel de seguridad, agilidad, dinamismo y comprensión, sin embargo es claro que podrá evolucionar con el tiempo. AbstractThis paper describe the general aspects of design new model development information systems oriented web of University Simon Bolivar - Sede Cucuta, as well as implementation of first modules of Educational Information Management and Academic Management. This project does use of new information technology for satisfy the variation of needs of headquarters, which should be adjusted growth of student comunity which reached more than four thousand students in just 14 years. The new development model began defining various design and security policies, which originated a structure software development for headquarters, which allows a process agile and identity institutional in systems. The system of Docent Management Information and Academic Management are two of the first modules which were realized in headquarters supported in the new development model, whose new characteristics are explained in the following document. Finally observed that the model meets the initially defined characteristics and structure ensures a good level of security, agility, dynamism and understanding, but it is clear that maybe evolve over time.
Diseño experimental de un Modelo de Calidad de Servicio para Redes de Siguiente Generación
Authors: David Josheff , Márquez José 
Published: August 2017

Este artículo presenta un Modelo de Calidad de Servicio (QoS) para Redes de Siguiente Generación (NGN), que consta de una torre de cinco capas definidas como Capa Modelo de QoS, Control de Admisión, QoS en el Enrutamiento, QoS en la Señalización, y MAC QoS. Además el modelo plantea un método basado en el concepto de segregación de funciones definiendo dos redes funcionales junto con las tareas de QoS. Luego se establecen las políticas de Control de Acceso, los protocolos y algoritmos de señalización, y de enrutamiento, así como los aspectos relacionados con el acceso al medio. Para verificar el rendimiento del modelo, se realizó un Diseño de Experimentos sobre una NGN Piloto en la herramienta de simulación OPNET Modeler. El Análisis Estadístico constó de un Análisis de Varianzas sobre las variables de salida Retardo, Jitter y Throughput, cuyo resultado determinó los factores significativos de impacto del modelo en las métricas estudiadas. AbstractThis paper presents a Model of Quality of Service (QoS) for Next Generation Networks (NGN), which consists of a tower of five layers defined as Model Layer QoS, Admission Control, QoS routing, QoS signaling, MAC and QoS. The model also presents a method based on the concept of segregation of functions defining two functional networks with QoS tasks. Then, Access Control policies, protocols and algorithms, signaling and routing, as well as aspects related to media access are established. To verify the performance of the model, a Design of Experiments on a NGN Pilot was designed over simulation tool OPNET Modeler. The statistical analysis consisted of an analysis of variance on the output variables Delay, Jitter and Throughput, whose outcome determined the significant factors that impacted the model metrics.
Algoritmo Novedoso Para la Detección de Tareas Repetitivas en el Teclado
Authors: Londoño González Bairon , Sánchez Paola Andrea 
Published: August 2017

En este artículo una herramienta para la detección de tareas repetitivas con secuencias lógicas realizadas a través de comandos del teclado, mediante el diseño e implementación de un algoritmo basado en el uso de autómatas finitos determinísticos y agentes de búsqueda de patrones. La novedad del algoritmo desarrollado radica en que está orientado a la detección de tareas repetitivas cuyas actividades tienen una secuencia lógica y que actualmente no se encuentran automatizadas por lo complejo que es esta labor AbstractThis paper propose a tool for the detection of repetitive tasks with logical sequences realized across command of the keyboard is proposed, by means of the design and implementation of an algorithm based on the use of finite automata deterministic and agents of bosses' search. The innovation of the developed algorithm takes root in that it is orientated to the detection of repetitive tasks which activities have a logical sequence and that nowadays are not automated by the complex thing that is this labor.
La deserción estudiantil en el programa de ingeniería de sistemas de la Universidad de la Amazonia (2012-I - 2015-I): una lectura institucional y antropológica del asunto
Authors: Sánchez Castillo Verenice , Gómez Cano Carlos Alberto , Gaviria Alvarado Mayra Alejandra 
Published: August 2017

Las políticas para el fortalecimiento de la educación superior, usualmente han estado dirigidas a aumentar la capacidad de cobertura de cada uno de los programas académicos, lo que se ha venido logrando paulatinamente. Sin embargo, la situación parece no ser tan ventajosa cuando se mantiene de manera constante los altos niveles de deserción estudiantil, siendo preocupante no tener claridades alrededor de las causales y así tomar decisiones que desencadenen en estrategias de mejora y atención a la problemática. La presente investigación tomando como estudio de caso el Programa de Ingeniería de Sistemas de la Universidad de la Amazonia, hizo un abordaje de tipo mixto empleando técnicas como arqueo de archivo, encuestas, observación estructurada y entrevistas, aplicadas a los desertores hizo una lectura sobre las causales de su abandono en el Programa. Al respecto, encontró que aunque como en los diferentes estudios de deserción aparecen factores como la dificultad económica o esta no era mi carrera, la situación es mucho más compleja y está relacionada con la vocación y el imaginario de vida que tienen los estudiantes.
Gestión de información sat río Manzanares
Authors: Viloria Adolfo , Quintero Wilmer 
Published: August 2017

El sistema de información desarrollado para recolección y procesado de datos consiste de un modulo de lectura de las variables humedad del suelo, nivel de lámina de agua y precipitación. El prototipo tiene como base un Arduino y una interfaz gráfica que muestra las lecturas en tiempo real de los datos obtenidos de los sensores. Para la transmisión de la información se ha implementado una red Mesh con la tecnología Zigbee como sistema de respaldo para el envío de datos. Por ultimo contamos con un portal web que gestiona la red de sensores, analiza la información medida y emite la alerta a los usuarios por medio de una App Android.
DNA Sequence Analysis of dtxR Gene (Partial) of Corynebacterium diphtheriae Causing Diphtheria in Jawa and Kalimantan Islands, Indonesia
Authors: Sunarno Sunarno , Mulyastuti Yuanita , Puspandari Nelly , Sariadji Kambang 
Published: August 2017

BACKGROUND: dtxR gene is a global regulator that can be used as a marker for detection of Corynebacterium diphtheriae (C. diphtheriae) and it is also a representative tool for mapping purpose (molecular typing) of this bacteria. The aim of this study was to analyze the DNA sequences of partial dtxR gene of C. diphtheriae causing diphtheria in some region of Indonesia. DNA sequence analysis was used to verify the accuracy of the in-house multiplex polymerase chain reaction (PCR) method that used for detection of C. diphtheriae in the clinical specimen as well as a preliminary study to determine the strain diversity of C. diphtheriae circulating in Indonesia.METHODS:Ten PCR products targeting the dtxR gene that have been detected as positive C. diphtheriae previously by in-house multiplex PCR used as samples in this study. The DNA sequencing carried out by Sanger method and the sequence data was analyzed by Bioedit software offline and basic local alignment sequence typing (BLAST) online.RESULTS: All of DNA sequence analyzed in this study were similar or identical to the dtxR gene sequence data of C. diphtheriae registered in GenBank. Within the 162 nucleotides (base 150-311) of dtxR gene that analyzed, at least 2 clonals were found among 10 samples. Substitutions of 2 nucleotides (base 225 and 273) was detected, both were silent mutation.CONCLUSION:Ten partial DNA sequences of dtxR genes in this study verify the accuracy of in-house multiplex PCR which used to identify the bacteria causing diphtheria in the clinical specimen. The DNA sequences also represent the existing diversity of the bacteria causing diphtheria circulating in Indonesia.KEYWORDS: dtxR, C. diphtheriae, diphtheria, Indonesia
Antioxidant Activity of Phyllanthus niruri Extract, Rutin and Quercetin
Authors: Rusmana Djaja , Wahyudianingsih Roro , Elisabeth Mariska , Balqis Balqis , Maesaroh Maesaroh , Widowati Wahyu 
Published: August 2017

BACKGROUND: Normal metabolism of oxygen and exogenous factors constantly generate free radicals which could be harmful to the human body. Human need antioxidants to provide protection against free radicals, thus plants are a good source of natural antioxidants. Phyllanthus niruri (P. niruri) has been known to possess several medicinal properties and contain numerous active phytochemical. In this research, we conducted phytochemical screening and antioxidant assay of P. niruri extract along with the compounds rutin and quercetin, which are flavonoids possessing medicinal properties. This study was conducted to determine P. niruri, rutin and quercetin as antioxidant.METHODS: In this study, qualitative phytochemical screening was performed to detect phenol, flavonoid, saponin, tannin, steroid/triterpenoid, terpenoid and alkaloid in P. niruri extract. Antioxidant analysis of P. niruri, rutin and quercetin was conducted using total measured phenolic content, 2,2-diphenyl-1-picrylhydrazil (DPPH), 2,2’-azinobis-3-ethylbenzo-thiazoline-6-sulfonic acid (ABTS) and ferric reducing antioxidant power (FRAP) assays.RESULTS: The study revealed that P. niruri extract contained saponin, phenol, flavonoid and tannin based on phytochemical screening. In DPPH and ABTS assays quercetin possessed highest antioxidant activity with IC50 value of 0.55 and 1.17 μg/ml respectively. Meanwhile, P. niruri extract showed the highest FRAP activity which was 373.95 μM Fe(II)/μg extract. Rutin possessed the lowest antioxidant activity in all antioxidant assays.CONCLUSION: This study confirmed that P. niruri extract and quercetin have great potential as a natural antioxidant source.KEYWORDS: asntioxidant, phytochemical, Phyllanthus niruri, quercetin, rutin, free radical
Culture Identity in Intercultural Business Communications
Authors: Bao Juyuan 
Published: August 2017

<p>This paper is going to introduce culture identity and explain why culture identity is important in intercultural business communications. In addition, the paper will talk about how to develop culture identity and how can culture identity promote intercultural business communications. The third part will explain how to develop culture identity by language and behavior during intercultural business communications. There are two ways culture identity promotes intercultural business communications. The first way is by understanding, and the other one is by multicultural individuals</p>
Living with Tricuspid Atresia: Case Report with Review of Literature
Authors: Frock Brittany Watson , Jnah Amy J. , Newberry Desi M. 
Published: August 2017

AbstractTricuspid atresia (TA) is a rare congenital heart defect in which the right atrioventricular connection, the tricuspid valve, is absent. As a result, there is no direct communication between the right atrium and right ventricle. Surgical treatment, including the Fontan procedure, is indicated yet palliative, leaving patients with various lifelong complications. A comprehensive literature review revealed a paucity of evidence-based education on the identification, evaluation, management, treatment, and life span implications of TA. We present a case of TA from birth through adulthood, while simultaneously assessing the literature, to report the most current evidence relative to living with TA after surgical palliation. In addition, the embryology, methods of prenatal and postnatal diagnosis, potential complications, management, anticipatory guidance, and educational needs of both parents and patient are discussed.
Plate Versus Tension-Band Wire Fixation for Olecranon Fractures
Authors: Duckworth Andrew D. , Clement Nicholas D. , White Timothy O. , Court-Brown Charles M. , McQueen Margaret M. 
Published: August 2017

Background:
The aim of this single-center, single-blinded, prospective randomized trial was to compare the outcomes of tension-band wire (TBW) and plate fixation for simple isolated, displaced fractures of the olecranon.

Methods:
We performed a prospective randomized trial involving 67 patients who were ≥16 to <75 years of age and had an acute isolated, displaced fracture of the olecranon. Patients were randomized to either TBW (n = 34) or plate fixation (n = 33) and were evaluated at 6 weeks, 3 months, 6 months, and 1 year following surgery. The primary outcome measure was the Disabilities of the Arm, Shoulder and Hand (DASH) score at 1 year.

Results:
The baseline demographic and fracture characteristics of the 2 groups were comparable, except for age, which was lower in the TBW group. The 1-year follow-up rate was 85% (n = 57), with 84% (n = 56) completing the DASH. There was a significant improvement in the DASH score over the 1-year period following surgery (p < 0.001). At 1 year, the DASH score for the TBW group (12.8) did not differ significantly from that of the plate group (8.5) (p = 0.315). The groups also did not differ significantly in terms of range of motion, the Broberg and Morrey score, the Mayo Elbow Score, or the DASH at all assessment points over the 1 year (all p ≥ 0.05). Complication rates were significantly higher in the TBW group (63% compared with 38%; p = 0.042), predominantly because of a significantly higher rate of metalwork removal in symptomatic patients (50.0% compared with 22%; p = 0.021). Four infections occurred, all in the plate group (0% versus 13%; p = 0.114), as did 3 revision surgeries (0% versus 9.4%; p = 0.238).

Conclusions:
Among active patients with a simple isolated, displaced fracture of the olecranon, no difference was found between TBW and plate fixation in the patient-reported outcome at 1 year following surgery. The complication rate was higher following TBW fixation and was due to a higher rate of implant removal in symptomatic patients. However, the more serious complications of infection and the need for revision surgery occurred exclusively following plate fixation in this trial.

Level of Evidence:
Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence.
Patients with Staged Bilateral Total Joint Arthroplasty in Registries
Authors: van der Pas Stéphanie L. , Nelissen Rob G.H.H. , Fiocco Marta 
Published: August 2017

Background:In arthroplasty data, patients with staged bilateral total joint arthroplasty (TJA) pose a problem in statistical analysis. Subgroup analysis, in which patients with unilateral and bilateral TJA are studied separately, is sometimes considered an appropriate solution to the problem; we aim to show that this is not true because of immortal time bias.Methods:We reviewed patients who underwent staged (at any time) bilateral TJA. The logical fallacy leading to immortal time bias is explained through a simple artificial data example. The cumulative incidences of revision and death are computed by subgroup analysis and by landmark analysis based on hip replacement data from the Dutch Arthroplasty Register and on simulated data sets.Results:For patients who underwent unilateral TJA, subgroup analysis can lead to an overestimate of the cumulative incidence of death and an underestimate of the cumulative incidence of revision. The reverse conclusion holds for patients who underwent staged bilateral TJA. Analysis of these patients can lead to an underestimate of the cumulative incidence of death and an overestimate of the cumulative incidence of revision. Immortal time bias can be prevented by using landmark analysis.Conclusions:When examining arthroplasty registry data, patients who underwent staged bilateral TJA should be analyzed with caution. An appropriate statistical method to address the research question should be selected.
Clinical and Radiographic Outcomes of the Ream-and-Run Procedure for Primary Glenohumeral Arthritis
Authors: Somerson Jeremy S. , Neradilek Moni B. , Service Benjamin C. , Hsu Jason E. , Russ Stacy M. , Matsen Frederick A. 
Published: August 2017

Background:
The ream-and-run procedure can provide improvement in shoulder function and comfort for selected patients with primary glenohumeral arthritis who wish to avoid a prosthetic glenoid component. The purpose of this study was to evaluate factors associated with medialization of the humeral head after this procedure as well as the relationship of medialization to the clinical outcome.

Methods:
We collected patient, shoulder, and procedure characteristics along with Simple Shoulder Test (SST) scores before surgery and at the time of follow-up. Medialization was determined by comparing the position of the humeral head prosthesis in relation to the scapula on postoperative baseline radiographs made within 6 weeks after surgery with that on comparable follow-up radiographs made ≥18 months after surgery.

Results:
Two-year clinical outcomes were available for 101 patients (95% were male). Comparable radiographs at postoperative baseline and follow-up evaluations were available for 50 shoulders. For all patients, the mean SST score (and standard deviation) increased from 4.9 ± 2.8 preoperatively to 10.3 ± 2.4 at the latest follow-up (p < 0.001). Significant clinical improvement was observed for glenoid types A2 and B2. Shoulders with a type-A2 glenoid morphology, with larger preoperative scapular body-glenoid angles, and with lower preoperative SST scores, were associated with the greatest clinical improvement. Clinical outcome was not significantly associated with the amount of medialization.

Conclusions:
The ream-and-run procedure can be an effective treatment for advanced primary glenohumeral osteoarthritis in active patients. Further study will be necessary to determine whether medialization affects the clinical outcome with follow-up of >2 years.

Level of Evidence:
Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
Ultrasound-Guided Motor-Sparing Knee Blocks for Postoperative Analgesia Following Total Knee Arthroplasty
Authors: Sogbein Olawale A. , Sondekoppam Rakesh V. , Bryant Dianne , Johnston David F. , Vasarhelyi Edward M. , MacDonald Steven , Lanting Brent , Ganapathy Sugantha , Howard James L. 
Published: August 2017

Background:
Pain following total knee arthroplasty (TKA) is often severe and can inhibit rehabilitation. Motor-sparing analgesic techniques such as periarticular infiltrations and adductor canal blocks have been popularized for knee analgesia since they preserve motor strength and permit early mobilization. Our primary objective was to compare the duration of analgesia from motor-sparing blocks with that of a standard periarticular infiltration. We used the time to first rescue analgesia as the end point.

Methods:
We randomized 82 patients scheduled for elective TKA to receive either the preoperative motor-sparing block (0.5% ropivacaine, 2.5 μg/mL of epinephrine, 10 mg of morphine, and 30 mg of ketorolac) or intraoperative periarticular infiltration (0.3% ropivacaine, 2.5 μg/mL of epinephrine, 10 mg of morphine, and 30 mg of ketorolac). For the motor-sparing block, we modified the ultrasound-guided adductor canal block by combining it with a lateral femoral cutaneous nerve block and posterior knee infiltration. The patients, surgeons, anesthetists administering the blocks, and outcome assessors all remained blinded to group allocation. Our primary outcome was duration of analgesia (time to first rescue analgesia). Secondary outcomes included quadriceps strength, function, side effects, satisfaction, and length of hospital stay.

Results:
The duration of analgesia was significantly longer (mean difference, 8.8 hours [95% confidence interval = 3.98 to 13.62], p < 0.01) for the motor-sparing-block group (mean [and standard error], 18.1 ± 1.7 hours) compared with the periarticular infiltration group (mean, 9.25 ± 1.7 hours). The infiltration group had significantly higher scores for pain at rest for the first 2 postoperative hours and for pain with knee movement at 2 and 4 hours. There were no significant differences between groups with regard to any other secondary outcomes.

Conclusions:
In patients undergoing a TKA, a motor-sparing block provides longer analgesia than periarticular infiltration with retention of quadriceps muscle strength, function, patient satisfaction, and a short hospital stay.

Level of Evidence:
Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence.