bluuebunny/crossref_metadata_2025 huggingface dataset:
Accuracy of clinical methods and doppler ultrasound in detection of incompetency of sapheno-femoral junction and perforators compared with operative results
Authors: Prabhu M. Ajoo Anto , Mohanty Alok
Published: September 2017

Background: Varicose veins, though a common condition, many time remains asymptomatic. The accurate diagnosis of varicose veins is of great importance in planning effective treatment. It is essential to bring out the accuracy of various diagnostic methods of varicose veins, so that early intervention can be achieved and recurrence can be prevented. The objective of this study was to our study was done with the intention of assessing the accuracy of Clinical evaluation of incompetence of Sapheno-Femoral Junction (SFJ) and perforators over doppler ultrasound evaluation and its Intra-operative confirmation, and also to assess the sensitivity, specificity, positive and negative predictive values and significance of both clinical as well as doppler ultrasound evaluation of varicose veins.Methods: The study was conducted in the in-patients of General Surgery Department from September 2011 to August 2013. Patients presented with dilated tortuous veins in lower limb(s) and operated were included in the study. Patients who had recurrent varicose veins and who were unfit for surgery were excluded from the study. The patients were first evaluated clinically using Brodie - Trendelenburg Test I and II, Tourniquet Test, Schwartz Test, Pratt’s Test, Morrissey’s Cough Impulse Test and Fegan’s Method. Following this, patients were evaluated by Ultrasound Doppler study of Venous system of the Lower limb(s) and sites of perforator incompetence were marked. Intra-operative confirmation of incompetence was done by Turner Warwick’s Bleed back sign. The accuracy of clinical methods and doppler ultrasound evaluation compared with operative findings were assessed.Results: Accuracy of clinical methods in detecting SFJ incompetence was checked with intra-operative findings. The sensitivity was 100%, specificity 100%, PPV 100% and NPV 100%. Similar results were obtained when checking the accuracy of doppler with intra-operative findings. Accuracy of clinical methods in detecting perforator incompetence was checked with intra-operative findings. The sensitivity was 82.93%, specificity 22.22%, PPV 90.67% and NPV 12.5%. Accuracy of doppler evaluation in detecting perforator incompetence was checked with Intra-operative findings. The sensitivity was 97.56%, specificity 12.5%, PPV 91.95% and NPV 33.33%.Conclusions: Diagnosis of varicose veins is essential for planning of treatment if needed. Clinical methods predict the diagnosis of incompetent SFJ and perforators for which patient need not spend money, and are easy to perform. But doppler ultrasound evaluation has been proved to be more reliable, non-invasive and compatible in detecting venous incompetence. Hence, we conclude that doppler ultrasound evaluation is more accurate than clinical methods in detecting incompetent veins.
The efficacy of phenytoin dressing in healing of diabetic ulcer: a randomized control study
Authors: Gunasekaran Vijay , Subbaraj Saravanakumar , Aroul Tirou
Published: September 2017

Background: Diabetic foot infection constitutes up to 10 percent of diabetes-related hospital admissions and the prevalence of diabetes is 2.4% in rural and 12-17% in urban settings. The quest for better wound healing agents for diabetic ulcers is perhaps one of the oldest challenges for medical practice. One such agent that has been tried in wound healing is phenytoin. A common side effect of phenytoin (diphenylhydantoin) treatment for epilepsy is gingival hyperplasia. This stimulatory effect of phenytoin on connective tissue suggested a possibility for its use in wound healing.Methods: 60 patients with diabetic foot ulcer admitted in General Surgery at Mahatma Gandhi Medical College and Research Institute, Puducherry, India were randomly assigned into two groups, the study group consisting of 30 patients who were treated with phenytoin dressing and 30 patients into control group who were treated with conventional saline dressing. Both groups underwent initial debridement and were started on parenteral antibiotics according to wound swab culture and sensitivity. Study group were treated with phenytoin dressing and the wound was assessed based on the rate of ulcer size reduction, the rate of granulation tissue, duration of hospital stays and antibacterial property of phenytoin. Patients were assessed weekly up to 21 days.Results: The rate of granulation tissue in phenytoin group was 90.36% which was statistically significant (p = 0.0011) as compared to control group which was 82.03%. Wound swab cultures repeated on day 21 revealed that there was 50% negative culture in phenytoin group when compared to control group of 24% which also was statistically significant. The mean hospital stay for the patient in phenytoin group was 29.2 days and in control group, it was 26.1 days. It was observed that surface area reduction in phenytoin group was 41.25cm2 to 18.38cm2 and in control group was 40.28cm2 to 20.23cm2 by the end of 21 days, but this was not statistically significant.Conclusions: Phenytoin dressing is effective in increasing the rate of granulation tissue by virtue of its action on stimulating fibroblast proliferation and decreasing collagenase activity. It not only hastens granulation tissue but also decreases bacterial load as compared to conventional dressing by virtue of its intrinsic antibacterial activity and indirectly through their effects on anti-inflammatory cells and neovascularization. Phenytoin prepares the foot ulcer for early grafting thereby improving the overall outcome.
Gender reassignment surgery: male to female, a short-term analysis of post-operative outcome
Authors: Subbaraj Saravanakumar , Srinivasan . , Nivethaa .
Published: September 2017

Background: The term gender dysphoria describes a heterogenous group of individuals who express varying degree of dissatisfaction with their anatomical gender and the desire to possess the secondary sexual characteristics of the opposite sex. For these individuals, gender reassignment surgery (GRS) plays a pivotal role in relieving their psychological discomfort. The literature is limited in terms of the outcome of surgery. In this study, we present surgical outcome and post-operative complications in Male to Female GRS.Methods: This is a retrospective cohort study on consecutive patients who underwent male to female (MtF) GRS at the Department of General Surgery, Mahatma Gandhi Medical College and Research Institute, Puducherry, India from March 2015 to July 2017 and demographic profile along with surgical complications were registered and analysed.Results: During the study period, a total of 59 MtF GRS were performed. The median age of the patients was 25.4 years (range 19-39). Major complications like rectovaginal fistula and pulmonary embolisms and deep venous thrombosis were not observed. The most common complications were wound infection and reactionary bleeding from the urethra.Conclusions: Gender reassignment surgery plays a pivotal role in relieving the psychological discomfort of Gender Dysphoria individuals. MtF GRS can be performed with a low rate of complications. The collaborative effort between the surgeon, behavioural scientist, and a medical physician responsible for hormonal therapy is recommended. Our short-term analysis revealed the low rate of complications. Surgical experience is the key factor to minimize the complication rate.
Study of serum Zinc status among type 2 diabetes mellitus patients
Authors: Dasarathan Ramesh , S. Senthil Kumar , V. Ganesh , K. S. Chenthil
Published: September 2017

Background: Both microvascular and macrovascular complications in diabetes are related to oxidative stress. Zinc which has antioxidant property, delays diabetic complications. The present study was conducted with the objective to study the relationship between serum Zinc level and HbA1C level in newly diagnosed type 2 diabetes mellitus and to compare serum Zinc level with its risk factors.Methods: The present study was a cross sectional study, conducted on 100 patients attending the outpatient department at Rajiv Gandhi Government General Hospital and Madras Medical College, Chennai during the period from May 2015 to October 2015. Of them 50 were newly diagnosed type 2 diabetics and considered as diabetic group and other 50 were considered as controls, who attended the master health check-up. All patients were subjected to thorough general and systemic examination. Under strict aseptic precautions blood sample was collected from all the patients and the serum was investigated for creatinine, urea, zinc, HbA1c, cholesterol, triglycerides and fasting blood glucose. The data obtained were analysed using Microsoft excel software. Correlation was found out in SPSS by using regression equation.Results: The body mass index (BMI) and mean systolic blood pressure (SBP) was significantly higher (p<0.001) in diabetic group as compared to controls. Serum levels of HbA1C and fasting blood glucose (FBG) levels were found to be significantly higher in diabetic group than in controls (p<0.001). Serum zinc levels were significantly higher in control group (p<0.001). Mean zinc value decreases with increase in HbA1c, FBG, BMI, SBP, DBP, triglycerides and cholesterol and the difference was statistically significant (p value <0.01). The relation between Pearson correlation coefficient for zinc and the above parameters were higher in diabetics than controls.Conclusions: Lower serum zinc levels were found to be responsible for the development of macrovascular complications in type-2 diabetics. Hence there is a need for zinc supplementation in diabetic patients to prevent long term complications associated with it.
Functional outcome of antegrade interlocking intramedullary nailing for humeral shaft fractures
Authors: H. P. Rajagopal , M. Madan Mohan , Pilar Anoop , Tamboowalla Keith Behram
Published: September 2017

Background: Humeral shaft fractures which account for approximately 1-3% of all fractures and 20% of humeral fractures have potential to cause significant disability in the young which is often temporary and in the old often permanent disability. The use of locked intramedullary nailing for the treatment of humeral shaft fractures is gaining popularity because of its biomechanical and biological advantages.

Methods: We present a descriptive retrospective review of 20 consecutive patients with acute humeral shaft fractures treated using an antegrade interlocking nail. Fracture union, functional outcome measured with Constant–Murley shoulder score and American shoulder and elbow surgeons (ASES) shoulder score and complications were assessed.

Results: Patient age ranged from 20 to 74 years (average, 36 years) and average follow-up was 30.7 months (range, 12–48 months). There were 13 male patients and 7 female patients. Fracture of the middle third was most common accounting to 80% (16/20) of the fractures. Fracture union was achieved in 90% (18/20) of our cases. 2 patients had nonunion for which secondary surgeries were needed. According to Constant–Murley score, shoulder function was excellent in 70% (14/20) and good in 25% (5/20). Average ASES score was 93.3%. None of the patients had radial nerve palsy postoperatively.

Conclusions: Gentle progressive reaming, correct entry point, minimal damage to rotator cuff, properly embedding the tip of the nail, good apposition of fracture fragments, static locking will help make antegrade intramedullary nailing, a dependable solution for the treatment of humeral shaft fractures and in achieving successful union with preserved/good shoulder and elbow function.
The elaboration of numerical simulation error light pulse propagation in a waveguide of circular cross-section
Authors:   Samara National Research University, 34 Moskovskoe Shosse, 443086, Samara, Russia, Degtuarev Alexandr A. , Kukleva Alexandra V. ,   Samara National Research University, 34 Moskovskoe Shosse, 443086, Samara, Russia
Published: September 2017

We considered the problem of estimating the error in the solution of the wave equation recorded using infinite series Fourier-Bessel. The algorithm that adjusts the number of elements in a partial sum of infinite series, based on the assessment of the series balance. The application of the algorithm made it possible, without loss of accuracy, to substantially reduce the number of summable elements of the series in the numerical simulation of the light pulse propagation in a circular cross-section.
Digital photoelasticity for calculating coefficients of the Williams series expansion in plate with two collinear cracks under mixed mode loading
Authors:   Samara National Research University, 34 Moskovskoe Shosse, 443086, Samara, Russia, Stepanova Larisa V. , Dolgikh Vadim S. ,   Samara National Research University, 34 Moskovskoe Shosse, 443086, Samara, Russia, Turkova Vera A. ,   Samara National Research University, 34 Moskovskoe Shosse, 443086, Samara, Russia
Published: September 2017

Photoelasticity method is used to study experimentally the complete Williams series expansion of the stress and displacement fields in the vicinity of the crack tip in isotropic linear elastic plates under Mixed Mode loading. The distribution of the isochromatic fridge patterns is employed for obtaining the stress field near the crack tip by the use of the complete Williams asymptotic expansion for various classes of the experimental specimens (plates with two collinear cracks under tensile loading and under mixed mode loading conditions). The higher order terms of the Williams series expansion are taken into account and the coefficients of the higher order terms are experimentally obtained. The stress field equation of Williams up to fifty terms in each in mode I and mode II has been considered. The comparison of the experimental results and the calculations performed with finite element analysis has shown the importance and significant advantages of photoelastic observations for the multi-parameter description of the stress field in the neighborhood of the crack tip.
Methods of bipolar microcircuits learning experiment
Authors:   JSC Progress Rocket and Space Centre “Progress”, Zemets St., 18, 443009, Samara, Russia, Tyulevin Sergey V. , Piganov Mikhail N. ,   Samara National Research University, 34 Moskovskoe Shosse, 443086, Samara, Russia, Erantseva Ekaterina S. ,   Samara National Research University, 34 Moskovskoe Shosse, 443086, Samara, Russia
Published: September 2017

The analysis of learning experiment methods of semiconductor microcircuits for individual prediction of their quality is carried out. A choice of the informative parameters and means of their control is made. The schemes of insertion the microcircuits in the course of investigation tests and modes of their control are justified. The analysis of microcircuits constructive and technological options is carried out. The program of investigation tests is developed. Results of learning experiment for 522 series microcircuits are given. The analysis of experimental data is carried out. It is recommended to use results of learning experiment for creation the mathematical prediction models of microcircuits quality.
Development of software system for analysis and optimization of taxi services effciency by statistical modeling methods
Authors:   Tango Telecom, 122 Krasnaya street, 426057, Izhevsk, Republic Udmurtia, Russia, Azanov Pavel , Danilov Andrey ,   Taxi Ulyanovsk, 1/3 Narimanova prospect, 432071, Ulyanovsk, Russia, Andriyanov Nikita ,   Ulyanovsk State Technical University, 32 Severniy Venets stret, 432027,Ulyanovsk, Russia
Published: September 2017

The text considers using of statistical models for taxi service data analysis and forecasting. Special attention is paid to the model parameters identification and short-term forecasting. We suggest to use the mathematical models of images to account the alternating character, associated with the dependence of the taxi orders number on various parameters. In addition the possibility of improving the efffectiveness of evaluation by use of mixed random fields models is shown.
Development of methods and algorithms for the classification of neurodegenerative diseases of the brain using MRI images
Authors:   The article considers algorithms and methods for the classification of neurodegenerative diseases, in particular Alzheimer’s disease and dementia. Stages are considered for carrying out such studies, including the search for raw materials, preprocessing and processing of MRI images., Vasilchuk Olga , Fedorov Alexey ,   National Research University of Electronic Technology (MIET), Bld. 1, Shokin Square, 124498, Zelenograd, Moscow, Russia
Published: September 2017

The article considers algorithms and methods for the classification of neurodegenerative diseases, in particular Alzheimer’s disease and dementia. Stages are considered for carrying out such studies, including the search for raw materials, preprocessing and processing of MRI images.
Control of a one rigit-link manipulator in the case of non-smooth periodic trajectory
Authors:   Samara National Research University, 34 Moskovskoe Shosse, 443086, Samara, Russia, Aksenova Natalya , Sobolev Vladimir ,   Samara National Research University, 34 Moskovskoe Shosse, 443086, Samara, Russia
Published: September 2017

Mathematical model of a single-link manipulator is considered. It describes the motion of the manipulator in the case of non-smooth path. Interpolation of the trajectory of motion is used, which makes it possible to reduce the amount of calculations and allows you to take into account the restrictions on the movement of the manipulator. Integral manifold method is used for the system order reduction. As a result, the reduced system of the investigated object is obtained, and the control function for the manipulation robot model in the case of a non-smooth periodic trajectory is constructed.
Formas de autoría en la persecución de crímenes internacionales
Authors: Sandoval Mesa Jaime Alberto
Published: September 2017

El presente artículo tiene por objeto indagar sobre las diversas formas de autoría en el orden internacional y su aplicación en la persecución de crímenes internacionales en el derecho interno. Este aspecto se viene presentando en los diversos precedentes nacionales mediante el alcance de la interpretación de precedentes de instancias de la justicia internacional. Dicha interpretación amplía las bases del derecho interno generando problemas de definición en un aspecto concreto como la autoría para tales casos, lo cual incide en la responsabilidad penal. Para los fines correspondientes, este documento se desarrolla según el método de investigación dogmático-jurídico y de análisis jurisprudencial, con uso de herramientas metodológicas, históricas, descriptivas, comparativas y propositivas.
Derecho e internet: introducción a un campo emergente para la investigación y práctica jurídicas
Authors: Jiménez William Guillermo , Meneses Quintana Orlando
Published: September 2017

El desarrollo de las TIC e Internet representan un reto para los tradicionales límites del derecho afianzados en la noción de soberanía y la localización espacial de las actividades. Las características del Internet tales como su naturaleza transfronteriza, independencia geográfica, amplia cobertura, anonimato, portabilidad, fácil reproducción, convergencia, conectividad y difícil control, son desafíos para el nuevo derecho. El objetivo es presentar un panorama sobre los aspectos más relevantes que Internet trae para el derecho, así como las áreas o temáticas más críticas o controversiales; mediante un método cualitativo e inductivo, usando fuentes primarias y secundarias y técnicas de revisión documental, estudios de caso y observación directa. Se concluye que es necesario que académicos, jueces y abogados, conozcan más los aspectos tecnológicos de la comunicación virtual, para así entender, manejar y resolver los problemas jurídicos que se presentan en el ambiente de Internet.
La alimentación escolar en las instituciones educativas públicas de Colombia. Análisis normativo y de la política pública alimentaria
Authors: López Daza Germán Alfonso , Torres P Katherin , Gómez García Carlos Fernando
Published: September 2017

Este artículo presenta los resultados de la investigación “La alimentación escolar en las instituciones educativas públicas de Colombia”, desarrollada por el grupo de investigación Nuevas Visiones del Derecho de la Universidad Surcolombiana y financiada por la Organización de las Naciones Unidas para la Alimentación y la Agricultura y el Observatorio del Derecho a la Alimentación en América Latina y el Caribe. El objetivo principal consistió en determinar si los productos alimenticios que se venden en las tiendas escolares de las instituciones educativas públicas de Colombia, cumplen con los estándares y obligaciones prescritas en la ley 1355/2009 que adoptó medidas de prevención y atención frente a la obesidad y las enfermedades crónicas no transmisibles. Esta investigación tuvo un enfoque mixto, ya que con la ayuda de los datos estadísticos que arrojaron las respuestas de los derechos de petición, se hizo un análisis cualitativo del contenido de las políticas públicas de los departamentos, municipios y colegios.
La contribución de vintilă horia A la filosofía de los derechos humanos
Authors: Ruiz Miguel Carlos
Published: September 2017

Este artículo explora un aspecto de la obra de Vintilă Horia no estudiado hasta ahora: su filo- sofía de los derechos humanos. A pesar de que la primera formación universitaria de Horia fue jurídica, su trabajo se decantó por la vía de la literatura y de la filosofía mayormente. La idea de libertad será central en la primera etapa de su obra enfocada desde la perspectiva de las “ciencias humanas”. En su segunda etapa, “holística”, la libertad seguirá siendo el eje de su reflexión, pero desde una mirada que integra también las “ciencias naturales”. Su aproximación “holística” a la cuestión de la libertad desembocará en una reflexión sobre los derechos humanos de acuerdo con la cual el verdadero “defensor” de los mismos no es el Estado, sino alguien que está fuera y tiene una especial capacidad para captar la esencia de lo humano y los peligros que la amenazan: el novelista.
Publique o perezca ¿o perezca publicando?
Authors: Villalba Cuéllar Juan Carlos , González Serrano Andrés
Published: September 2017

Publique o perezca es el sugestivo nombre de un programa que se utiliza para medir la visibilidad de las publicaciones de autores y publicaciones con respecto al número de citaciones, conocido hoy como índice H. Para Colciencias este es un factor importante para establecer la calidad e impacto de las publicaciones científicas y de los investigadores. Pero esa frase de “publique o perezca” que parece sentenciar algo, también entrañar muchas ambigüedades en el contexto colombiano de la investigación.Publique o perezca nos querría decir que en la actualidad el docente universitario que no investigue está condenado a no existir, y esto en el fondo guarda una finalidad plausible pero no del todo cierta. En primer lugar no todos los profesores universitarios son investigadores, es más, la mayoría no lo son, para ser investigador se necesitan competencias y aptitudes especiales que no todo educador posee, así como un contexto laboral que le permita verdaderamente hacer investigación, y esto no se cumple en un alto porcentaje de los casos.
Motivação para aprender música em espaços escolares e não-escolares
Authors: Hentschke Liane , Santos Regina Antunes Teixeira dos , Pizzato Miriam , Vilela Cassiana Zamith , Cereser Cristina
Published: September 2017

Este artigo apresenta o resultado da amostra brasileira da pesquisa internacional intitulada “Os significados da música para crianças e adolescentes em atividades musicais escolares e não-escolares”. Essa pesquisa teve o objetivo de investigar a importância e o significado atribuído pelos alunos às atividades musicais desenvolvidas em ambientes escolares e não-escolares. O método consistiu em um survey envolvendo 21.975 alunos de oito países (Brasil, China, Coreia do Sul, Estados Unidos, Finlândia, Hong Kong, Israel e México), cujo questionário foi concebido sob a ótica do modelo de expectativa e valor de Eccles e Wigfield. No Brasil, fizeram parte da amostra 1848 alunos da 6a série do ensino fundamental à 3a série do ensino médio, de 11 cidades do Estado do Rio Grande do Sul. O instrumento de coleta de dados foi um questionário sobre o perfil dos alunos e suas opiniões quanto ao interesse, importância, dificuldade, utilidade, senso de competência e senso de confiança em relação às disciplinas Artes, Ciências, Educação Física, Matemática, Português e Música. Os dados foram tratados por análise de variância (ANOVA). Os resultados do Brasil apontam que o grau de interesse, importância e utilidade da Música aumenta à medida que os estudantes brasileiros pertencem a séries mais avançadas, em sentido oposto ao observado na maioria dos outros países.
Apoio motivacional e desenvolvimento da compreensão leitora em alunos do ensino fundamental
Authors: Gomes Maria Aparecida Mezzalira
Published: September 2017

O objetivo desse relato de experiência é o de destacar a importância do apoio motivacional no processo de aprendizagem. Mais precisamente, relata aspectos importantes de uma intervenção realizada para a melhoria da compreensão leitora com estudantes de quarta série do Ensino Fundamental. A intervenção teve por base o ensino de estratégias cognitivas e metacognitivas de aprendizagem durante sete sessões de uma hora e meia de duração, durante dois meses, incluindo também apoio motivacional e orientação para estudos. O referencial teórico adotado foi o da Psicologia Cognitiva e da Teoria do Processamento de Informação. Os resultados obtidos reforçam a ideia de que o sucesso escolar pode ser incrementado quando se fortalecem, no trabalho psicopedagógico, estímulos à cognição, à metacognição e à motivação para aprender.
Práticas pedagógicas em prevenção ao abuso de drogas: aspectos motivacionais
Authors: Fonseca Marília Saldanha da
Published: September 2017

Pesquisas reconhecem a presença de drogas psicotrópicas nas escolas e abuso dessas substâncias entre alunos. Apontam a necessidade de melhorar a formação de professores em prevenção ao consumo de drogas. Estudos demonstram que o contexto da sala se aula e a atuação do professor são elementos determinantes para assegurar o interesse e o entusiasmo na aprendizagem. O objetivo desse trabalho foi investigar se as atuais práticas docentes são apropriadas à demanda do abuso de drogas entre estudantes. Realizou-se uma intervenção pedagógica entre professoras (23) de educação básica fundamentada no método dialético: tese, antítese e síntese. No presente estudo, o planejamento e a estruturação da intervenção tiveram como foco criar um clima que viabilizasse a motivação para aprender dos professores participantes. Os resultados mostram que a construção de um ambiente de aprendizagem estimulante está associado à motivação de quem aprende. Além disso, sugerem que as propostas inconsistentes do início da intervenção foram se redefinindo até a formulação de propostas novas e adequadas ao contexto social, evidenciando articulação de conhecimentos sobre prevenção ao uso de drogas.
Museum of Childhood: o desafio do encontro de gerações
Authors: Leite Maria Isabel
Published: September 2017

Este texto visa a problematizar estratégias que o V&A Museum of Chilhood usa para enfrentar o desafio de tornar-se atrativo, simultaneamente, às diferentes gerações. Traz uma breve contextualização, descreve o Museu e suas seções, formas de musealização e atividades e alinhava reflexões reconhecendo o esforço em consolidar um caminho de acessibilidade, de museu como espaço de congregação e de 'edutenimento' mais lúdico, participativo e acolhedor, mostrando que é possível dividir e partilhar o mesmo espaço entre crianças, jovens e adultos - crença que a modernidade parece querer afastar.
Unification of Electromagnetism and Gravitation
Authors: Beach Raymond
Published: September 2017

Using four field equations, a recently proposed theory that covers the phenomenology of classical physics at the level of the Maxwell and Einstein Field Equations (M&EFEs) but then goes further by unifying electromagnetic and gravitational phenomena in a fundamentally new way is reviewed.  Predictions of the field equations are shown to be consistent with those of the M&EFEs through specific solutions; a particle-like solution representing a point charge, and two radiative solutions representing electromagnetic and gravitational waves.  A unique feature of the full set of field equations is that charge and mass are treated as dynamic fields instead of being introduced as external parameters as is done with the classical M&EFEs, a feature that enables a procedure for quantizing the mass, charge and angular momentum of particle-like solutions.  Finally, antimatter is naturally accommodated by the theory and definite predictions regarding the interactions of matter and antimatter with gravitational fields are made.
An exploratory analysis of quick service restaurants using tidyverse tools in R
Authors: M. Dubas Khalid
Published: September 2017

This study presents an exploratory analysis of Quick Service Restaurants (QSR) industry in the US during 2015 by using publicly available data and open-source R software. The data analysis framework and tools utilized here were developed primarily by Hadley Wickham and are included in his tidyverse package in R. This data analysis framework consists of data import, data wrangeling, data exploration (tranformation, visualization, and modeling), and communication of results (Wickham & Grolemund, 2016). These steps are illustrated by exploring the relationship between sales, customer satisfaction, and other characteristics of 65 QSR restaurants in the US. In order to facilitate reproduction and replication of this study, the dataset as well as the R code are included in this study.
Modelado y control de un sistema de levitación magnética basado en un cojinete magnético activo
Authors: Cruz-Pegueros Marlon , Gutiérrez Frías Oscar Octavio , Lozada-Castillo Norma Beatriz , Luviano- Juárez Alberto
Published: September 2017

En este trabajo se presenta el diseño, modelado e implementación de un sistema de levitación magnética de un grado de libertad, que consiste en una viga actuada por un cojinete magnético activo en configuración pendular. Se obtiene su representación en espacio de estado y, tras una linealización tangente, su función de transferencia correspondiente. Se describen las características del dispositivo experimental, su instrumentación electrónica y mecanismo, particularmente el procedimiento de diseño del actuador electromagnético empleado, así como su caracterización para determinar la constante de proporcionalidad de la fuerza electromagnética. Finalmente, se muestra la simulación numérica e implementación experimental de esquemas clásicos de control para estabilizar en el punto de equilibrio del sistema.
Electricity generation through a photo sediment microbial fuel cell using algae at the cathode
Authors: Neethu B. , Ghangrekar M. M.
Published: September 2017

Sediment microbial fuel cells (SMFCs) are bio-electrochemical devices generating electricity from redox gradients occurring across the sediment–water interface. Sediment microbial carbon-capture cell (SMCC), a modified SMFC, uses algae grown in the overlying water of sediment and is considered as a promising system for power generation along with algal cultivation. In this study, the performance of SMCC and SMFC was evaluated in terms of power generation, dissolved oxygen variations, sediment organic matter removal and algal growth. SMCC gave a maximum power density of 22.19 mW/m2, which was 3.65 times higher than the SMFC operated under similar conditions. Sediment organic matter removal efficiencies of 77.6 ± 2.1% and 61.0 ± 1.3% were obtained in SMCC and SMFC, respectively. With presence of algae at the cathode, a maximum chemical oxygen demand and total nitrogen removal efficiencies of 63.3 ± 2.3% (8th day) and 81.6 ± 1.2% (10th day), respectively, were observed. The system appears to be favorable from a resources utilization perspective as it does not depend on external aeration or membranes and utilizes algae and organic matter present in sediment for power generation. Thus, SMCC has proven its applicability for installation in an existing oxidation pond for sediment remediation, algae growth, carbon conversion and power generation, simultaneously.
O CONCEITO DE DIÁSPORA AFRICANA COMO ARGUMENTO PARA DESCENTRAR A IDENTIDADE NEGRA
Authors: Flor Cauê Gomes
Published: September 2017

Nos últimos vinte anos, observamos transformações substanciais tanto no lugar que é atribuído aos povos, às culturas e tradições de origem africana na formação da sociedade brasileira, quanto na maneira como a identidade nacional é abordada nos debates e discussões que se dedicam à investigação das relações raciais na contemporaneidade. Essas transformações trilham um caminho que reflete um novo olhar sobre a presença desses povos e culturas, muitas vezes, informado e influenciado por um conceito que tem ganhado destaque nas discussões tanto no mundo acadêmico quanto no da militância: a diáspora africana. A noção de diáspora africana representa tanto uma nova categoria analítica, como também a expressão de novas formas de etnicidade negras que têm tensionado pelo seu caráter descentrado, intencionalmente ou não, o modelo de identidade negra pré-requisito de políticas públicas atuais. Nesse sentido, este trabalho tem como objetivo produzir algumas aproximações, ainda iniciais e certamente insatisfatórias, sobre o impacto dos potenciais deslocamentos teóricos, epistemológicos e discursivos que a noção de diáspora africana produz, especificamente, nas discussões acerca da identidade negra no Brasil. Para tanto, elaboramos uma possível genealogia da identidade negra no interior das ciências sociais brasileiras, que, entre outras coisas, nos proporcionou compreender quais as tradições teórico-metodológicas que foram responsáveis pela sua emergência e inscrição. Conclui-se que a noção de diáspora africana, segundo a forma como vem sendo evocada no debate sobre a questão racial no Brasil contemporâneo, desloca o modelo de identidade organizado segundo o sujeito sociológico centrado proeminentemente na sociologia das relações raciais.
Comparing the Quality of Life of Patients Requesting Dental Implants Before and After Implant
Authors: Sargolzaie Naser , Moeintaghavi Amir , Shojaie Hamid
Published: September 2017

Background and Objectives:

Tooth loss is a serious life event that impairs two important functions, namely, eating and speaking, and has significant side effects on different aspects of quality of life. These effects are internalized by the individual. The present study aimed to compare the quality of life (QOL) of patients requesting dental implants before and after implant.

Materials and Methods:

This analytical cross-sectional study was conducted on patients referred to the Mashhad faculty of Dentistry and private clinics with dental implants in 2015. Patient Quality Of Life (QOL) was assessed using the Oral Impact on Daily Practice (OIDP) questionnaire. Data were analyzed using SPSS software.

Results:

In this study, the most common problems reported by patients were eating (78%), smiling, laughing, and embarrassment (53%) before surgery. The quality of life associated with eating; speaking clearly; clean teeth or dentures; light physical activities, such as working at home, going out to work or meeting others; smiling; laughing; showing teeth without discomfort and embarrassment; emotional conditions, such as becoming upset quicker than usual, enjoying communication with others (i.e., friends, relatives and neighbors); and job-related activities significantly increased after surgery, but QOL associated with the amount of sleep and resting did not improve. No significant association was noted between quality of life after implantation and place of residence, education and gender.

Conclusion:

In this study, implants had a favorable impact on a patient’s quality of life.
Multidirectional Shoulder Instability: Treatment
Authors: Ruiz Ibán Miguel Angel , Díaz Heredia Jorge , García Navlet Miguel , Serrano Francisco , Santos Oliete María
Published: September 2017

Background:

The treatment of multidirectional instability of the shoulder is complex. The surgeon should have a clear understanding of the role of hiperlaxity, anatomical variations, muscle misbalance and possible traumatic incidents in each patient.

Methods:

A review of the relevant literature was performed including indexed journals in English and Spanish. The review was focused in both surgical and conservative management of multidirectional shoulder instability.

Results:

Most patients with multidirectional instability will be best served with a period of conservative management with physical therapy; this should focus in restoring strength and balance of the dynamic stabilizers of the shoulder. The presence of a significant traumatic incident, anatomic alterations and psychological problems are widely considered to be poor prognostic factors for conservative treatment. Patients who do not show a favorable response after 3 months of conservative treatment seem to get no benefit from further physical therapy.

When conservative treatment fails, a surgical intervention is warranted. Both open capsular shift and arthroscopic capsular plication are considered to be the treatment of choice in these patients and have similar outcomes. Thermal or laser capsuloraphy is no longer recommended.

Conclusion:

Multidirectional instability is a complex problem. Conservative management with focus on strengthening and balancing of the dynamic shoulder stabilizers is the first alternative. Some patients will fare poorly and require either open or arthroscopic capsular plication.
Controversies In The Surgical Management Of Shoulder Instability: Associated Soft Tissue Procedures
Authors: Marco Santos Moros , Lafuente José Luis Ávila , Ibán Miguel Angel Ruiz , Heredia Jorge Diaz
Published: September 2017

Background:

The glenohumeral joint is a ball-and-socket joint that is inherently unstable and thus, susceptible to dislocation. The traditional and most common anatomic finding is the Bankart lesion (anterior-inferior capsule labral complex avulsion), but there is a wide variety of anatomic alterations that can cause shoulder instability or may be present as a concomitant injury or in combination, including bone loss (glenoid or humeral head), complex capsule-labral tears, rotator cuff tears, Kim´s lesions (injuries to the posterior-inferior labrum) and rotator interval pathology.

Methods:

A review of articles related to shoulder anatomy and soft tissue procedures that are performed during shoulder instability arthroscopic management was conducted by querying the Pubmed database and conclusions and controversies regarding this injury were exposed.

Results:

Due to the complex anatomy of the shoulder and the large range of movement of this joint, a wide variety of anatomic injuries and conditions can lead to shoulder instability, specially present in young population. Recognizing and treating all of them including Bankart repair, capsule-labral plicatures, SLAP repair, circumferential approach to pan-labral lesions, rotator interval closure, rotator cuff injuries and HAGL lesion repair is crucial to achieve the goal of a stable, full range of movement and not painful joint.

Conclusion:

Physicians must be familiarized with all the lesions involved in shoulder instability, and should be able to recognize and subsequently treat them to achieve the goal of a stable non-painful shoulder. Unrecognized or not treated lesions may result in recurrence of instability episodes and pain while overuse of some of the techniques previously described can lead to stiffness, thus the importance of an accurate diagnosis and treatment when facing a shoulder instability.
A review on cost effective analysis of antiepileptic drugs
Authors: S.S. Uthara , Basheer Mohammed , A. Anil Babu
Published: September 2017

80% of the epilepsy patients were resides in developing countries. 12 million patients with epilepsy were in India that is One-sixth of the global burden is due to epilepsy. Those diseases were treated properly there is a greater reduction in seizure and people may leads to proper life, if untreated that may become a large increase in burden. Drugs are the main treatment for epilepsy. As compared with conventional AEDs newer drugs are much expensive some newer drugs were 10 to 20 times costlier than older drugs. if those expensive drugs reduce the seizure events, improves the quality of life and with lesser ADRs then the benefit justify the higher cost of the drug. The epilepsy burden can be reduced mainly by giving epilepsy care at low cost, given the lack of expertise in the management of epilepsy in poor areas.
EXPERIMENTATION OF SPICES LEARNING STRATEGIES WITH THE METHOD OF PROBLEM BASED LEARNING (PBL) TO BUILD MOTIVATION AND THE ABILITY TO THINK LOGICALLY FOR VOCATIONAL SCHOOL STUDENTS
Authors: Maharani Anggita , Laelasari Laelasari
Published: September 2017

This study aims to expose the interactions that occur in the process of mathematics learning and describe a method of learning motivation and logical mathematical thinking of students in classes. The method used in this research was a quasi-experimental design group post-test. In its implementation, this study uses a class experiment. Qualitative data are obtained in the form of motivational learning scale, whereas the quantitative data in the form of logical thinking ability score using normalized gain. The results showed the existence of a positive interaction during learning. However, learning motivation of students didn’t show a significant improvement. While the logical thinking ability of students after learning of mathematics using the strategy of SPICES with PBL method is in the category is fair. In its implementation, the strategy of SPICES needed support some teachers from several fields of science.
Atividade física, nutrição, farmacoterapia; a obesidade e seus tratamentos: uma revisão da literatura
Authors: Faria André Pinto Lemos de
Published: September 2017

O interesse principal desta revisão é avaliar as estratégias e métodos farmacológicos ou não para
o tratamento da obesidade e sobrepeso. A obesidade é, hoje, umas das principais doenças da vida
moderna; tendências de transição nutricional ocorridas neste século direcionam para uma dieta mais
ocidentalizada, a qual, aliada à diminuição progressiva da atividade física, converge para o aumento
no número de casos de obesidade em todo o mundo. Isto representa aumento na morbidade e na
mortalidade associadas à obesidade, já que esta é fator de risco para várias doenças. Como uma
DCNT (doença crônica não transmissível) a IHME (Institute for Health Metrics and Evaluation) atribui
3,4 milhões de mortes e uma prevalência de 37% da população mundial adulta com obesidade e
sobrepeso de 1980 – 2013. A obesidade apresenta-se não apenas como problema científico e de saúde
pública, mas também como grande desafio à indústria, envolvendo o desenvolvimento de fármacos,
de alimentos modificados entre outros e, ainda, estratégias governamentais estimulando a prática
regular de atividade física e a orientação alimentar, a fim de promover melhorias dos hábitos salutares.
Assim, a avaliação de recursos e estratégias preventivas da obesidade são objetos de estudos de
pesquisadores de inúmeros centros.
Abordagem nutrológica do transtorno do déficit de atenção e hiperatividade em crianças.
Authors: Alvarenga Noé Tadeu Gomes de
Published: September 2017

O objetivo deste estudo é conduzir uma revisão não-sistemática da literatura disponível sobre a
abordagem nutrológica do Transtorno do Déficit de Atenção e Hiperatividade (TDAH) em crianças. Os
numerosos tratamentos nutrológicos que têm sido propostos incluem dietas de restrição e eliminação
de alimentos (REDs), suplementação com ácidos graxos ômega-3, ferro, zinco e magnésio.
Extreme skeletal open bite correction with vertical elastics
Authors: Cruz-Escalante Marco Antonio , Aliaga-Del Castillo Aron , Soldevilla Luciano , Janson Guilherme , Yatabe Marilia , Zuazola Ricardo Voss
Published: September 2017

Severe skeletal open bites may be ideally treated with a combined surgical–orthodontic approach. Alternatively, compensations may be planned to camouflage the malocclusion with orthodontics alone. This case report describes the treatment of an 18-year-old man who presented with a severe open bite involving the anterior and posterior teeth up to the first molars, increased vertical dimension, bilateral Class III molar relationship, bilateral posterior crossbite, dental midline deviation, and absence of the maxillary right canine and the mandibular left first premolar. A treatment plan including the extraction of the mandibular right first premolar and based on uprighting and vertical control of the posterior teeth, combined with extrusion of the anterior teeth using multiloop edgewise archwire mechanics and elastics was chosen. After 6 months of alignment and 2 months of multiloop edgewise archwire mechanics, the open bite was significantly reduced. After 24 months of treatment, anterior teeth extrusion, posterior teeth intrusion, and counterclockwise mandibular rotation were accomplished. Satisfactory improvement of the overbite, overjet, sagittal malocclusion, and facial appearance were achieved. The mechanics used in this clinical case demonstrated good and stable results for open-bite correction at the 2-year posttreatment follow-up.
Relações com o saber, com o ensinar e com a aprendizagem em um projeto de formação inicial de professores de matemática no Brasil
 Relations with the knowledge, teaching and learning in a initial training Project of mathematic teachers in Brazil
Authors: Carvalho Diego Fogaça , Passos Marinez Meneghello , Arruda Sergio De Mello , Savioli Angela Marta Pereira das Dores
Published: September 2017

ResumoNeste artigo analisamos as relações com o saber, com o ensinar e com o aprender em atividades desenvolvidas em um subprojeto de Matemática no Programa Institucional de Bolsas de Iniciação à Docência (PIBID). Os dados consistiram no registro das ações realizadas em sala de aula por um supervisor (professor), seis estudantes da licenciatura em Matemática e alunos do Ensino Fundamental de uma escola pública do estado do Paraná, Brasil. Para a interpretação dos dados foi utilizado um instrumento que possibilita evidenciar as relações com o saber na sala de aula denominado Matriz 3x3. As análises revelaram implicações da ação do supervisor na ação tanto dos estudantes universitários quanto dos alunos da escola e, consequentemente, nas relações que estes estabeleceram com o saber, o ensinar e o aprender.AbstractIn this article we analyze the relationship with knowledge, with teaching and with learning in activities developed in a subproject of Mathematics in the Institutional Program of Initiation to Teaching (PIBID). The data consisted of the registration of actions carried out in the classroom by a supervisor (teacher), six undergraduate students in Mathematics and students of the Elementary School of a public school in the state of Paraná, Brazil. For the interpretation of the data we used an analytical instrument called Matrix 3x3. The analyses revealed the implications of the supervisor's action on the actions of the university students and of the school students and consequently on the relationships they established with knowledge, teaching and learning.