CONTROL POR SEGUIMIENTO DE REFERENCIA PARA EL SISTEMA CAPSUBOT

En este documento se presenta una nueva técnica de control, en lazo cerrado, para el sistema Capsubot. La técnica combina el criterio de varianza mínima generalizada con el concepto de control por superficie deslizante en el dominio discreto. El objetivo de control es hacer seguimiento de la señal de referencia a través de la minimización de la varianza de la variable controlada, escogiéndose como señal de referencia una dinámica de velocidad adecuada de la masa interna del Capsubot, generándose así el movimiento adecuado del sistema Capsubot. El modelo no lineal del Capsubot es simplificado a un modelo lineal para poder aplicar la técnica de control propuesta

Inventario de germoplasma de taxones de Citroideae (Rutaceae) de importancia agronómica en el Municipio Caripe, estado Monagas, Venezuela | Germplasm inventory of agriculturally important Citroideae (Rutaceae) taxons in the Caripe municipality, Monagas, State, Venezuela

Se realizó un inventario de algunas especies y taxones infraespecíficos de Citroidea, familia Rutaceae de importancia agronómica con la finalidad de conocer la diversidad existente y sus usos, en el Municipio Caripe del estado Monagas. Se seleccionaron 12 unidades de producción distribuidas en 8 sectores, durante los meses de Diciembre 2009 a Junio 2010. La colección e identificación de los especímenes se realizó siguiendo la metodología tradicional de estudios fitotaxonómicos. Se colectaron 73 especímenes que permitieron determinar 16 especies, 1 subespecie y 16 cultivares. Las unidades de producción con mayor predominancia fueron El Peligro y Las Cayenas representadas por 12 especies y 10 cultivares y con la menor predominancia La Estación Experimental San Agustín, La Muralla, Las Acacias y Las Cayenas con una especie y un cultivar. Las especies más predominantes fueron Citrus deliciosa Ten., y C. sinensis (L.) Osbeck, esta última con los cultivares ‘Criolla’ y ‘Washington Navel’ en 11 unidades de producción y las menos predominantes fueron C. myrtifolia Raf., C. taiwanica Tan. & Shim, C x limon (L.) Osbeck ‘Eureka’, C. paradisi Macfad. ‘Duncan’ y ‘Thompson’, C. aurantium L., y C. reticulata x C. sinensis ‘Ortanique’, todas ellas en una unidad de producción. El uso de las especies, subespecies y cultivares inventariados en el mercado local como fruta fresca, en la agroindustria para la elaboración de jugos concentrados, sin olvidar su empleo desde el punto de vista agronómico como patrones y copas. Palabras clave: Cítricos, frutales, Monagas, biodiversidad ABSTRACT In Caripe municipality, Monagas State, an inventory of species with high agronomic importance of Citroideae, Rutaceae family was carried out in order to appreciate their diversity and uses. Twelve production units were selected, distributed in eight sectors of the municipality, from December 2009 to June 2010. The collection and identification of specimens was carried out following the traditional methodology of phytotaxonomic studies. Seventy three specimens collected revealed 16 species, one subspecies and 16 varieties. The predominant production units were El Peligro and Las Cayenas with 12 species and 10 cultivars and the lowest prevalence was San Agustín Experimental Station. La Muralla, Acacias and Las Cayenas with one species and San Augustin Experimental Station with one cultivar. The predominant species were Citrus delicious Ten. and C. sinensis (L.) Osbeck, with the cultivars ‘Criolla’ and ‘Washington Navel’ in 11 production units and the least dominants were C. myrtifolia Raf., C. taiwanica Tan & Shim, C x limon (L.) Osbeck ‘Eureka’, C. paradisi Macfad ‘Duncan’ and ‘Thompson’, C. aurantium L. and C. reticulata x C. sinensis ‘Ortanique’ in one production unit. The use of species, subspecies and cultivars inventoried, are important in the local market as fresh fruit, agro-industry for concentrated juice, but also for use as rootstocks and scions. Key words: Citrus, fruit, Monagas, biodiversity

The first Latin American Catheter Ablation Registry

Aims To assess the results of transcatheter ablation of cardiac arrhythmias in Latin America and establish the first Latin American transcatheter ablation registry.Methods and results All ablation procedures performed between 1 January and 31 December 2012 were analysed retrospectively. Data were obtained on the characteristics and resources of participating centres (public or private institution, number of beds, cardiac surgery availability, type of room for the procedures, days per week assigned to electrophysiology procedures, type of fluoroscopy equipment, availability and type of electroanatomical mapping system, intracardiac echo, cryoablation, and number of electrophysiologists) and the results of 17 different ablation substrates: atrio-ventricular node reentrant tachycardia, typical atrial flutter, atypical atrial flutter, left free wall accessory pathway, right free wall accessory pathway, septal accessory pathway, right-sided focal atrial tachycardia, left-sided focal atrial tachycardia, paroxysmal atrial fibrillation, non-paroxysmal atrial fibrillation, atrio-ventricular node, premature ventricular complex, idiopathic ventricular tachycardia, post-myocardial infarction ventricular tachycardia, ventricular tachycardia in chronic chagasic cardiomyopathy, ventricular tachycardia in congenital heart disease, and ventricular tachycardias in other structural heart diseases. Data of 15 099 procedures were received from 120 centres in 13 participating countries (Argentina, Bolivia, Brazil, Chile, Colombia, Cuba, El Salvador, Guatemala, Mexico, Peru, Dominican Republic, Uruguay, and Venezuela). Accessory pathway was the group of arrhythmias most frequently ablated (31%), followed by atrio-ventricular node reentrant tachycardia (29%), typical atrial flutter (14%), and atrial fibrillation (11%). Overall success was 92% with the rate of global complications at 4% and mortality 0.05%.Conclusion Catheter ablation in Latin America can be considered effective and safe.Hosp Privado Sur, Serv Electrofisiol, RA-8000 Bahia Blanca, Buenos Aires, ArgentinaCtr Privado Cardiol, San Miguel de Tucuman, ArgentinaEscola Paulista Med, São Paulo, BrazilCES Cardiol & Clin Amer, Serv Electrofisiol, Medellin, ColombiaISSSTE, Ctr Med Nacl 20 Noviembre, Mexico City, DF, MexicoFMUSP, Inst Coracao, São Paulo, BrazilUnidad Especializada Arritmias, Caracas, VenezuelaInst Nacl Cardiovasc INCOR EsSalud, Lima, PeruCEMIC, Buenos Aires, DF, ArgentinaHosp Nacl Alejandro Posadas, Buenos Aires, DF, ArgentinaInst Cardiol Corrientes, Corrientes, ArgentinaInst Cardiovasc Buenos Aires, Buenos Aires, DF, ArgentinaEscola Paulista Med, São Paulo, BrazilWeb of Scienc

The potential role of three-dimensional surface imaging as a tool to evaluate aesthetic outcome after Breast Conserving Therapy (BCT)

To establish whether objective measurements of symmetry of volume and shape using three-dimensional surface imaging (3D-SI) can be used as surrogate markers of aesthetic outcome in patients who have undergone breast conserving therapy (BCT). Women who had undergone unilateral BCT in the preceding 1-6 years were invited to participate. Participants completed a satisfaction questionnaire (BREAST-Q) and underwent 3D-SI. Volume and surface symmetry were measured on the images. Assessment of aesthetic outcome was undertaken by a panel of clinicians. The Kruskal-Wallis test was used to assess the relationship between volume and shape symmetry measurements with the panel score. Spearman's rho correlations were used to assess the relationship between the measurements and patient satisfaction. 200 women participated. Median volume symmetry was 87% (IQR 78-93) and shape symmetry was 5.9 mm (IQR 4.2-8.0). The participants were grouped according to panel assessment of aesthetic outcome (poor, fair, good, excellent) and the median volume and shape symmetry was calculated for each group. Volume symmetry significantly differed between the groups. Post hoc pairwise comparisons demonstrated that these differences existed between panel scores of fair versus good and good versus excellent. Median shape symmetry also differed according to patient panel groups with four significant pairwise comparisons between poor versus good, poor versus excellent, fair versus good and fair versus excellent. There was a significant but weak correlation of both volume symmetry and surface asymmetry with BREAST-Q scores (correlation coefficients 0.187 and -0.229, respectively). Breast volume and shape symmetry are both associated with panel assessment scores and patient satisfaction. The objective volume and shape symmetry measures were strongly associated with panel assessment scores, such that a 3D-SI tool could replace panel assessment as a faster and more objective method of evaluating aesthetic outcomes

Multiple Mini-Interview Curriculum Mapping: A New Method to Personalize the MMI Process for Medical Schools

Multiple Mini-Interview Curriculum Mapping: A New Method to Personalize the MMI Process for Medical Schools Nicholas Patete, MS-II, College of Allopathic Medicine, Kyle Bauckman Ph.D, Assistant Professor, College of Allopathic Medicine The process of applying to medical school is extremely competitive with only 41% of applicants matriculating into an American allopathic medical school. The number of applicants in 2019 was 53,371 and each applicant applied to an average number of 17 individual American allopathic medical schools making a total of 869,819 applications.1 Despite this large application pool, medical schools have the difficult task of selecting future physicians who match the individual school’s mission and objectives. A holistic review approach, as suggested by the AAMC, is important in order to select not only applicants who will make good medical students, but also applicants who match the individual medical school’s goals and mission statement.2 We are proposing a new Multiple Mini-interview (MMI) strategy to better personalize the process for our own school which can be adopted by other medical schools in the U.S. and Canada. The malleability of the MMI is beneficial as it allows schools to provide a holistic review which is not “one size fits all”, but instead is personalized to individual school goals and mission statements. By mapping MMI questions to our school Medical Education Program Objectives (MEPOs), we plan to rate applicant’s MMI performance based on the individual’s performance in each objective. We will then compare the applicant’s performance in each objective to other applicants and the average matriculant’s performance on radar charts. This method is intended to allow interviewers and admissions committee members to achieve higher confidence in accepting students who best fit the individual medical school. References: 2019 FACTS: Applicants and Matriculants Data. AAMC. https://www.aamc.org/data-reports/students-residents/interactive-data/2019-facts-applicants-and-matriculants-data. Accessed July 14, 2020. Holistic Review in Medical School Admissions. AAMC Students, Applicants and Residents. https://students-residents.aamc.org/choosing-medical-career/article/holistic-review-medical-school-admissions/. Published January 8, 2016. Accessed July 14, 2020