57 research outputs found

    PROPUESTA DE UN PROCESO DE DESARROLLO DE COMPONENTES SOFTWARE REUTILIZABLES

    Get PDF
    RESUMEN El presente artículo corresponde a un avance de la investigación para obtener el título de magister titulada: “Propuesta de un proceso de desarrollo de componentes software reutilizables”, mediante la cual se busca establecer los pasos necesarios para crear componentes software reutilizables en Java Edición Empresarial 5 (Java EE 5). En primer lugar se hace una introducción planteando la problemática que se evidencia en el desarrollo de software empresarial y cómo la Ingeniería del Software Basada en Componentes (ISBC) puede ayudar a resolverla; se aclara la definición de componente y se plantean las preguntas de investigación. Posteriormente se explica la metodología utilizada en la investigación que comprende la investigación descriptiva e investigación tecnológica aplicada. Después dentro de los resultados de la investigación se plantea la estructura de un componente software reutilizable siguiendo el modelo de componentes de Java, el cual consta principalmente de Entidades (pojos, antiguos EJB de entidad), EJBs (de sesión o manejador de mensajes), componentes o controles personalizados para la interfaz de usuario y servicios web que exponen las funcionalidades encapsuladas en los EJBs como servicios web. Después se propone un modelo de selección de componentes software reutilizables y por último se establecen las alternativas de arquitectura que se pueden utilizar para implementar este tipo de componentes, dentro de estas arquitecturas se pueden definir: la arquitectura por capas, arquitectura modelo – vista – controlador y la arquitectura orientada a servicios.  PALABRAS CLAVESIngeniería del Software Basada en Componentes.Componentes Software Reutilizables.Modelo de Componentes.Enterprise Java Bean.Servicios Web.  ABSTRACT This article is a look ahead to the research to obtain the master degree: “Proposal of a process of the development or reuse software components” by which it is wanted to set the necessary steps to create reuse software components in Java Enterprise Edition 5 (Java EE 5). First of all, an introduction is made to set out the problem that is evident in the development of enterprise software and how the Component Based Software Engineering (CBSE) can help to solve it; the definition of component is clarified and the research questions are set. Later it is explained the methodology used in the research that comprises the descriptive research and applied technologic research. After in the result of the research, it is set up the structure of a reuse software component following the component model of Java, which consist mainly of Entities (pojos, old EJB entities), EJB (session beans, message driver bean), components or personalized controllers for the user interface and web services that present the covered operations in the EJBs like web services. Then it is proposed a model of selection of reuse software components and lastly it is established the alternatives of architecture that can be used to introduce this kind of components. Among these architectures it can be defined: multi – tired, model – view – controller and services – based architecture.  KEYWORDSComponent – Based Software Engineering.Reuse software component.Component model.Enterprise Java Bean.Web Services

    PROPUESTA DE UN PROCESO DE DESARROLLO DE COMPONENTES SOFTWARE REUTILIZABLES

    Get PDF
    RESUMEN El presente artículo corresponde a un avance de la investigación para obtener el título de magister titulada: “Propuesta de un proceso de desarrollo de componentes software reutilizables”, mediante la cual se busca establecer los pasos necesarios para crear componentes software reutilizables en Java Edición Empresarial 5 (Java EE 5). En primer lugar se hace una introducción planteando la problemática que se evidencia en el desarrollo de software empresarial y cómo la Ingeniería del Software Basada en Componentes (ISBC) puede ayudar a resolverla; se aclara la definición de componente y se plantean las preguntas de investigación. Posteriormente se explica la metodología utilizada en la investigación que comprende la investigación descriptiva e investigación tecnológica aplicada. Después dentro de los resultados de la investigación se plantea la estructura de un componente software reutilizable siguiendo el modelo de componentes de Java, el cual consta principalmente de Entidades (pojos, antiguos EJB de entidad), EJBs (de sesión o manejador de mensajes), componentes o controles personalizados para la interfaz de usuario y servicios web que exponen las funcionalidades encapsuladas en los EJBs como servicios web. Después se propone un modelo de selección de componentes software reutilizables y por último se establecen las alternativas de arquitectura que se pueden utilizar para implementar este tipo de componentes, dentro de estas arquitecturas se pueden definir: la arquitectura por capas, arquitectura modelo – vista – controlador y la arquitectura orientada a servicios.  PALABRAS CLAVESIngeniería del Software Basada en Componentes.Componentes Software Reutilizables.Modelo de Componentes.Enterprise Java Bean.Servicios Web.  ABSTRACT This article is a look ahead to the research to obtain the master degree: “Proposal of a process of the development or reuse software components” by which it is wanted to set the necessary steps to create reuse software components in Java Enterprise Edition 5 (Java EE 5). First of all, an introduction is made to set out the problem that is evident in the development of enterprise software and how the Component Based Software Engineering (CBSE) can help to solve it; the definition of component is clarified and the research questions are set. Later it is explained the methodology used in the research that comprises the descriptive research and applied technologic research. After in the result of the research, it is set up the structure of a reuse software component following the component model of Java, which consist mainly of Entities (pojos, old EJB entities), EJB (session beans, message driver bean), components or personalized controllers for the user interface and web services that present the covered operations in the EJBs like web services. Then it is proposed a model of selection of reuse software components and lastly it is established the alternatives of architecture that can be used to introduce this kind of components. Among these architectures it can be defined: multi – tired, model – view – controller and services – based architecture.  KEYWORDSComponent – Based Software Engineering.Reuse software component.Component model.Enterprise Java Bean.Web Services

    TRIPOS DENS (OSTENFELD & SCHMIDT) F. GÓMEZ 2013, EN LA COSTA NORTE DEL PERÚ

    Get PDF
    En el presente trabajo se registra por primera vez el dinoflagelado Tripos dens (Ostenfeld & Schmidt) F. Gómez 2013, en la zona norte del Perú (Máncora-Piura-Perú) a partir del 2013. La identificación de T. dens se realizó mediante un examen morfo-taxonómico detallando sus placas con microscopía de luz; también se comparó con T. balechii, especie con la que se confundió en diversas publicaciones

    3D printed scaled setup for smoke transport analysis in a subterranean passenger platform

    Get PDF
    In this work, the study of smoke fire transportation inside of a subway passenger platform is presented. The study includes a set of numerical simulations to observe the behavior of the smoke inside the platform. Two smoke transport simulations using the FDS program are also included. Subsequently, the development of a 3D - 1:100 scale model is described and it was used to perform an experimental observation of the phenomenon. The model was built by using a 3D printer which allowed to include more architectural details of the real scenario. The inclusion of these details allowed to observe qualitative similarity between the results of the simulation and the experimental work. Although there are clear differences between what could happen in a real scenario and what was observed in the scale model, it was identified that the model is an important complement to the simulations. In addition to the simulations, the use of this type of 3D models allows the observation of the phenomenon by different specialists such as firefighters, policeman, medical personnel, etc., in the same place and its intention is to provide a more interactive tool to the observation group, increasing the time devoted to the development of contingency actions and reducing the costs associated with the logistics of a real simulacrum. The model allows to better identify the strengths, opportunities, weaknesses and threats of the contingency procedures developed by the safety and hygiene groups and to make their corresponding adjustments if necessary.Peer Reviewe

    Standards of care for obsessive–compulsive disorder centres

    Get PDF
    In recent years, many assessment and care units for obsessive–compulsive disorder (OCD) have been set up in order to detect, diagnose and to properly manage this complex disorder, but there is no consensus regarding the key functions that these units should perform. The International College of Obsessive- Compulsive Spectrum Disorders (ICOCS) together with the Obsessive Compulsive and Related Disorders Network (OCRN) of the European College of Neuropsychopharmacology (ECNP) and the Anxiety and Obsessive Compulsive Disorders Section of the World Psychiaric Association (WPA) has developed a stand- ards of care programme for OCD centres. The goals of this collaborative initiative are promoting basic standards, improving the quality of clinical care and enhance the validity and reliability of research results provided by different facilities and countries

    Correction for Johansson et al., An open challenge to advance probabilistic forecasting for dengue epidemics.

    Get PDF
    Correction for “An open challenge to advance probabilistic forecasting for dengue epidemics,” by Michael A. Johansson, Karyn M. Apfeldorf, Scott Dobson, Jason Devita, Anna L. Buczak, Benjamin Baugher, Linda J. Moniz, Thomas Bagley, Steven M. Babin, Erhan Guven, Teresa K. Yamana, Jeffrey Shaman, Terry Moschou, Nick Lothian, Aaron Lane, Grant Osborne, Gao Jiang, Logan C. Brooks, David C. Farrow, Sangwon Hyun, Ryan J. Tibshirani, Roni Rosenfeld, Justin Lessler, Nicholas G. Reich, Derek A. T. Cummings, Stephen A. Lauer, Sean M. Moore, Hannah E. Clapham, Rachel Lowe, Trevor C. Bailey, Markel García-Díez, Marilia Sá Carvalho, Xavier Rodó, Tridip Sardar, Richard Paul, Evan L. Ray, Krzysztof Sakrejda, Alexandria C. Brown, Xi Meng, Osonde Osoba, Raffaele Vardavas, David Manheim, Melinda Moore, Dhananjai M. Rao, Travis C. Porco, Sarah Ackley, Fengchen Liu, Lee Worden, Matteo Convertino, Yang Liu, Abraham Reddy, Eloy Ortiz, Jorge Rivero, Humberto Brito, Alicia Juarrero, Leah R. Johnson, Robert B. Gramacy, Jeremy M. Cohen, Erin A. Mordecai, Courtney C. Murdock, Jason R. Rohr, Sadie J. Ryan, Anna M. Stewart-Ibarra, Daniel P. Weikel, Antarpreet Jutla, Rakibul Khan, Marissa Poultney, Rita R. Colwell, Brenda Rivera-García, Christopher M. Barker, Jesse E. Bell, Matthew Biggerstaff, David Swerdlow, Luis Mier-y-Teran-Romero, Brett M. Forshey, Juli Trtanj, Jason Asher, Matt Clay, Harold S. Margolis, Andrew M. Hebbeler, Dylan George, and Jean-Paul Chretien, which was first published November 11, 2019; 10.1073/pnas.1909865116. The authors note that the affiliation for Xavier Rodó should instead appear as Catalan Institution for Research and Advanced Studies (ICREA) and Climate and Health Program, Barcelona Institute for Global Health (ISGlobal). The corrected author and affiliation lines appear below. The online version has been corrected

    Effects of an exercise program on hepatic metabolism, hepatic fat, and cardiovascular health in overweight/obese adolescents from Bogotá, Colombia (the HEPAFIT study): study protocol for a randomized controlled trial

    Get PDF
    Background: A considerable proportion of contemporary youth have a high risk of obesity-related disorders such as cardiovascular disease, metabolic syndrome, or non-alcoholic fatty liver disease (NAFLD). Although there is consistent evidence for the positive effects of physical activity on several health aspects, most adolescents in Colombia are sedentary. It is, therefore, important to implement strategies that generate changes in lifestyle. The HEPAFIT study aims to examine whether a 6-month exercise program has benefits for hepatic fat content and cardiovascular health outcomes among overweight/obese adolescents from Bogotá, Colombia. Methods/design: Altogether, 100 hundred overweight/obese, sedentary adolescents (aged 11–17 years) attending two public schools in Bogotá, Colombia, will be included in a parallel-group randomized controlled trial. Adolescents will be randomly assigned to an intervention group following one of four curricula: (1) the standard physical education curriculum (60 min per week of physical activity, n = 25) at low-to-moderate intensity; (2) a high-intensity physical education curriculum (HIPE, n = 25), consisting of endurance and resistance games and non-competitive activities, such as running, gymkhanas, lifting, pushing, wrestling, or hauling, for 60-min sessions, three times per week, with an energy expenditure goal of 300 to 500 kcal/session at 75–85% maximum heart rate (HRmax); (3) a low-to-moderate intensity physical education curriculum (LIPE, n = 25) consisting of endurance and resistance games and non-competitive activities (e.g., chasing, sprinting, dribbling, or hopping) for 60-min sessions, three times per week with an energy expenditure goal of 300 kcal/session at 55–75% HRmax; and (4) a combined HIPE and LIPE curriculum (n = 25). The HIPE, LIPE, and combined interventions were performed in addition to the standard physical education curriculum. The primary outcome for effectiveness is liver fat content, as measured by the controlled attenuation parameter 1 week after the end of the intervention program. Discussion: The translational focus may be suitable for collecting new information in a school setting on the possible effects of physical activity interventions to reduce liver fat content and to improve metabolic profiles and the cardiometabolic health of overweight/obese adolescents. This may lead to the more efficient use of school physical education resources.The HEPAFIT study was carried out with the financial support of Instituto Colombiano para el Desarrollo de la Ciencia y la Tecnología “Francisco José de Caldas” COLCIENCIAS (code 59700 and no 122277757900). Katherine González-Ruíz receive a scholarship from Universidad del Rosario, Colombia, Escuela de Medicina y Ciencias de la Salud, to do a Doctorate. This article presents independent research commissioned by COLCIENCIAS under its Program Grants for Applied Research funding scheme (Convocatoria 777–2017)

    Genomic Relationships, Novel Loci, and Pleiotropic Mechanisms across Eight Psychiatric Disorders

    Get PDF
    Genetic influences on psychiatric disorders transcend diagnostic boundaries, suggesting substantial pleiotropy of contributing loci. However, the nature and mechanisms of these pleiotropic effects remain unclear. We performed analyses of 232,964 cases and 494,162 controls from genome-wide studies of anorexia nervosa, attention-deficit/hyper-activity disorder, autism spectrum disorder, bipolar disorder, major depression, obsessive-compulsive disorder, schizophrenia, and Tourette syndrome. Genetic correlation analyses revealed a meaningful structure within the eight disorders, identifying three groups of inter-related disorders. Meta-analysis across these eight disorders detected 109 loci associated with at least two psychiatric disorders, including 23 loci with pleiotropic effects on four or more disorders and 11 loci with antagonistic effects on multiple disorders. The pleiotropic loci are located within genes that show heightened expression in the brain throughout the lifespan, beginning prenatally in the second trimester, and play prominent roles in neurodevelopmental processes. These findings have important implications for psychiatric nosology, drug development, and risk prediction.Peer reviewe

    Familial hypercholesterolaemia in children and adolescents from 48 countries: a cross-sectional study

    Get PDF
    Background: Approximately 450 000 children are born with familial hypercholesterolaemia worldwide every year, yet only 2·1% of adults with familial hypercholesterolaemia were diagnosed before age 18 years via current diagnostic approaches, which are derived from observations in adults. We aimed to characterise children and adolescents with heterozygous familial hypercholesterolaemia (HeFH) and understand current approaches to the identification and management of familial hypercholesterolaemia to inform future public health strategies. Methods: For this cross-sectional study, we assessed children and adolescents younger than 18 years with a clinical or genetic diagnosis of HeFH at the time of entry into the Familial Hypercholesterolaemia Studies Collaboration (FHSC) registry between Oct 1, 2015, and Jan 31, 2021. Data in the registry were collected from 55 regional or national registries in 48 countries. Diagnoses relying on self-reported history of familial hypercholesterolaemia and suspected secondary hypercholesterolaemia were excluded from the registry; people with untreated LDL cholesterol (LDL-C) of at least 13·0 mmol/L were excluded from this study. Data were assessed overall and by WHO region, World Bank country income status, age, diagnostic criteria, and index-case status. The main outcome of this study was to assess current identification and management of children and adolescents with familial hypercholesterolaemia. Findings: Of 63 093 individuals in the FHSC registry, 11 848 (18·8%) were children or adolescents younger than 18 years with HeFH and were included in this study; 5756 (50·2%) of 11 476 included individuals were female and 5720 (49·8%) were male. Sex data were missing for 372 (3·1%) of 11 848 individuals. Median age at registry entry was 9·6 years (IQR 5·8-13·2). 10 099 (89·9%) of 11 235 included individuals had a final genetically confirmed diagnosis of familial hypercholesterolaemia and 1136 (10·1%) had a clinical diagnosis. Genetically confirmed diagnosis data or clinical diagnosis data were missing for 613 (5·2%) of 11 848 individuals. Genetic diagnosis was more common in children and adolescents from high-income countries (9427 [92·4%] of 10 202) than in children and adolescents from non-high-income countries (199 [48·0%] of 415). 3414 (31·6%) of 10 804 children or adolescents were index cases. Familial-hypercholesterolaemia-related physical signs, cardiovascular risk factors, and cardiovascular disease were uncommon, but were more common in non-high-income countries. 7557 (72·4%) of 10 428 included children or adolescents were not taking lipid-lowering medication (LLM) and had a median LDL-C of 5·00 mmol/L (IQR 4·05-6·08). Compared with genetic diagnosis, the use of unadapted clinical criteria intended for use in adults and reliant on more extreme phenotypes could result in 50-75% of children and adolescents with familial hypercholesterolaemia not being identified. Interpretation: Clinical characteristics observed in adults with familial hypercholesterolaemia are uncommon in children and adolescents with familial hypercholesterolaemia, hence detection in this age group relies on measurement of LDL-C and genetic confirmation. Where genetic testing is unavailable, increased availability and use of LDL-C measurements in the first few years of life could help reduce the current gap between prevalence and detection, enabling increased use of combination LLM to reach recommended LDL-C targets early in life

    Analysis of shared heritability in common disorders of the brain

    Get PDF
    ience, this issue p. eaap8757 Structured Abstract INTRODUCTION Brain disorders may exhibit shared symptoms and substantial epidemiological comorbidity, inciting debate about their etiologic overlap. However, detailed study of phenotypes with different ages of onset, severity, and presentation poses a considerable challenge. Recently developed heritability methods allow us to accurately measure correlation of genome-wide common variant risk between two phenotypes from pools of different individuals and assess how connected they, or at least their genetic risks, are on the genomic level. We used genome-wide association data for 265,218 patients and 784,643 control participants, as well as 17 phenotypes from a total of 1,191,588 individuals, to quantify the degree of overlap for genetic risk factors of 25 common brain disorders. RATIONALE Over the past century, the classification of brain disorders has evolved to reflect the medical and scientific communities' assessments of the presumed root causes of clinical phenomena such as behavioral change, loss of motor function, or alterations of consciousness. Directly observable phenomena (such as the presence of emboli, protein tangles, or unusual electrical activity patterns) generally define and separate neurological disorders from psychiatric disorders. Understanding the genetic underpinnings and categorical distinctions for brain disorders and related phenotypes may inform the search for their biological mechanisms. RESULTS Common variant risk for psychiatric disorders was shown to correlate significantly, especially among attention deficit hyperactivity disorder (ADHD), bipolar disorder, major depressive disorder (MDD), and schizophrenia. By contrast, neurological disorders appear more distinct from one another and from the psychiatric disorders, except for migraine, which was significantly correlated to ADHD, MDD, and Tourette syndrome. We demonstrate that, in the general population, the personality trait neuroticism is significantly correlated with almost every psychiatric disorder and migraine. We also identify significant genetic sharing between disorders and early life cognitive measures (e.g., years of education and college attainment) in the general population, demonstrating positive correlation with several psychiatric disorders (e.g., anorexia nervosa and bipolar disorder) and negative correlation with several neurological phenotypes (e.g., Alzheimer's disease and ischemic stroke), even though the latter are considered to result from specific processes that occur later in life. Extensive simulations were also performed to inform how statistical power, diagnostic misclassification, and phenotypic heterogeneity influence genetic correlations. CONCLUSION The high degree of genetic correlation among many of the psychiatric disorders adds further evidence that their current clinical boundaries do not reflect distinct underlying pathogenic processes, at least on the genetic level. This suggests a deeply interconnected nature for psychiatric disorders, in contrast to neurological disorders, and underscores the need to refine psychiatric diagnostics. Genetically informed analyses may provide important "scaffolding" to support such restructuring of psychiatric nosology, which likely requires incorporating many levels of information. By contrast, we find limited evidence for widespread common genetic risk sharing among neurological disorders or across neurological and psychiatric disorders. We show that both psychiatric and neurological disorders have robust correlations with cognitive and personality measures. Further study is needed to evaluate whether overlapping genetic contributions to psychiatric pathology may influence treatment choices. Ultimately, such developments may pave the way toward reduced heterogeneity and improved diagnosis and treatment of psychiatric disorders
    corecore