1,664 research outputs found
LEARNING FOR THE GENERATION OF SHARED VALUE: CHALLENGE OF THE MANAGEMENT PROGRAM OF A PUBLIC UNIVERSITY
Companies as organizations focused on the fulfillment of particular objectives direct and maximizing limited resources in the function of satisfying needs in society, however, motivated by profit and rarely conceived of their investors as sufficient, causing neglect and distancing from the commitment to ethical and responsible management of resources, oriented by market orders, under policies more concerned with their profits than with operational practices that, in addition to improving their competitiveness, help to improve social conditions in a reactivation process after the pandemic experienced, contribute to the quality of life in general in the communities involved in their production processes, in other words, the generation of shared value (SV). The results of a study that sought to identify, through the perception delivered by students and graduates of an administration program of a public university, the level of perception of learning that allows contributing to the culture in the generation of shared value in organizations. It is a population that, due to its formation, challenges them with the transfer of knowledge that contributes to the economic reactivation, as well as to the generation of SV in the organizations. The study is based on Porter's and Kramer's ideas on preconceiving a) products and markets, b) redefining productivity in the value chain, and c) building support clusters. The methodology implemented for the analysis was mixed, using the survey as a data collection instrument. The results show that the students and graduates of the program observed show that there is a medium-low environment in the three concepts evaluated, with a medium level of 40%, a low level of 35% and a high level of only 24%
Learning For The Generation Of Shared Value: Challenge Of The Management Program Of A Public University
Companies as organizations focused on the fulfillment of particular objectives direct and maximizing limited resources in the function of satisfying needs in society, however, motivated by profit and rarely conceived of their investors as sufficient, causing neglect and distancing from the commitment to ethical and responsible management of resources, oriented by market orders, under policies more concerned with their profits than with operational practices that, in addition to improving their competitiveness, help to improve social conditions in a reactivation process after the pandemic experienced, contribute to the quality of life in general in the communities involved in their production processes, in other words, the generation of shared value (SV). The results of a study that sought to identify, through the perception delivered by students and graduates of an administration program of a public university, the level of perception of learning that allows contributing to the culture in the generation of shared value in organizations. It is a population that, due to its formation, challenges them with the transfer of knowledge that contributes to the economic reactivation, as well as to the generation of SV in the organizations. The study is based on Porter's and Kramer's ideas on preconceiving a) products and markets, b) redefining productivity in the value chain, and c) building support clusters. The methodology implemented for the analysis was mixed, using the survey as a data collection instrument. The results show that the students and graduates of the program observed show that there is a medium-low environment in the three concepts evaluated, with a medium level of 40%, a low level of 35% and a high level of only 24%
Paecilomyces fumosoroseus blastospore production using liquid culture in a bioreactor
There are many advantages to using liquid cultures for the production of blastospores. These include mainly the processes of scale up which are relatively easy, as well as the control of parameters such astemperature, aeration and pH. In this work, we evaluated the production of Paecilomyces fumosoroseus blastospores using a low-cost liquid culture medium in a fermenter in comparison to a mediumcommonly used for this purpose, with regard to yield and viability of blastospores. The two media contained the same concentration of glucose but differed in N source (M1 containing casamino acidsand M2 provided with collagen peptone and yeast extract). Starting with an inoculum of 1x106 blastospores/ml, M2 medium produced 2x1010 blastospores/ml after incubation for 72 h at 520 rev/minagitation and 1 v/v/m (volume air/volume liquid.min) aeration, while only 2.4 x 108/ml were produced with M1. In addition, the microorganisms in medium M1 grew more slowly during log phase and reached an earlier plateau at 36 h fermentation. The medium containing collagen peptone and yeast extract is an excellent alternative for the production of P. fumosoroseus blastospores, providing lower cost, higher yield and shorter propagation time, but formulation does need to be improved
Evidence of suppression of onchocerciasis transmission in the Venezuelan Amazonian focus.
BACKGROUND: The World Health Organization (WHO) has set goals for onchocerciasis elimination in Latin America by 2015. Most of the six previously endemic countries are attaining this goal by implementing twice a year (and in some foci, quarterly) mass ivermectin (Mectizan®) distribution. Elimination of transmission has been verified in Colombia, Ecuador and Mexico. Challenges remain in the Amazonian focus straddling Venezuela and Brazil, where the disease affects the hard-to-reach Yanomami indigenous population. We provide evidence of suppression of Onchocerca volvulus transmission by Simulium guianense s.l. in 16 previously hyperendemic Yanomami communities in southern Venezuela after 15 years of 6-monthly and 5 years of 3-monthly mass ivermectin treatment. METHODS: Baseline and monitoring and evaluation parasitological, ophthalmological, entomological and serological surveys were conducted in selected sentinel and extra-sentinel communities of the focus throughout the implementation of the programme. RESULTS: From 2010 to 2012–2015, clinico-parasitological surveys indicate a substantial decrease in skin microfilarial prevalence and intensity of infection; accompanied by no evidence (or very low prevalence and intensity) of ocular microfilariae in the examined population. Of a total of 51,341 S. guianense flies tested by PCR none had L3 infection (heads only). Prevalence of infective flies and seasonal transmission potentials in 2012–2013 were, respectively, under 1 % and 20 L3/person/transmission season. Serology in children aged 1–10 years demonstrated that although 26 out of 396 (7 %) individuals still had Ov-16 antibodies, only 4/218 (2 %) seropositives were aged 1–5 years. CONCLUSIONS: We report evidence of recent transmission and morbidity suppression in some communities of the focus representing 75 % of the Yanomami population and 70 % of all known communities. We conclude that onchocerciasis transmission could be feasibly interrupted in the Venezuelan Amazonian focus. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s13071-016-1313-z) contains supplementary material, which is available to authorized users
Causes of Microcephaly in the Zika Era in Argentina: A Retrospective Study
There are gaps in understanding the causes and consequences of microcephaly. This paper describes the epidemiological characteristics, clinical presentations, and etiologies of children presenting microcephaly during the Zika outbreak in Argentina. This observational retrospective study conducted in the pediatric hospital of Juan P. Garrahan reviewed the medical records of 40 children presenting microcephaly between March 2017 and November 2019. The majority (60%) were males and born full-term. At first evaluation, microcephaly was defined as congenital (31/40, 77%) and associated with other features (68%) such as seizures, developmental delay, non-progressive chronic encephalopathy, and West Syndrome. It was found manifestations restricted to central nervous system (55%), ocular (8/40, 20%), and acoustic (9/40, 23%) defects, and abnormal neuroimaging findings (31/39, 79%). Non-infectious diseases were the primary cause of isolated microcephaly (21/37, 57%), largely related to genetic diseases (13/21, 62%). Only 3 were children were diagnosed with Congenital Zika infection (3/16, 7.5%)
GOBIERNO ELECTRÓNICO Y TRANSPARENCIA EN LA MUNICIPALIDAD DISTRITAL DE LA VICTORIA
El gobierno electrónico tiene un impacto positivo ante la sociedad y los servidores públicos; sin embargo, el desconocimiento de la normativa de la ley de transparencia y acceso a la información pública genera una brecha entre el ciudadano y el estado ante su rol dinámico que este debe cumplir en la sociedad. Es por ello, que la presente investigación tiene como objetivo establecer el vínculo directo entre gobierno electrónico y transparencia en la municipalidad distrital de La Victoria, 2020.La presente investigación tiene un enfoque cuantitativo, con un esquema de tipo no experimental, de corte transeccional y de diseño descriptivo correlacional; empleando la técnica de la encuesta y como instrumento el cuestionario; el cual fue aplicado a 35 colaboradores, alcanzandouna valoración de muy bueno al 69% para la variable gobierno electrónico, y una valoración de bueno y muy bueno al 63% para la variable transparencia.La correlación de ambas variables es positiva media de 0.542 y significativa al nivel 0,01. Finalmente, se determinó que existe vínculo directo entre gobierno electrónico, la ley de transparencia y acceso a la información pública y el portal institucional
PROPUESTA DE UN PROCESO DE DESARROLLO DE COMPONENTES SOFTWARE REUTILIZABLES
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
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
Accurate masses and radii of normal stars: modern results and applications
This paper presents and discusses a critical compilation of accurate,
fundamental determinations of stellar masses and radii. We have identified 95
detached binary systems containing 190 stars (94 eclipsing systems, and alpha
Centauri) that satisfy our criterion that the mass and radius of both stars be
known to 3% or better. To these we add interstellar reddening, effective
temperature, metal abundance, rotational velocity and apsidal motion
determinations when available, and we compute a number of other physical
parameters, notably luminosity and distance. We discuss the use of this
information for testing models of stellar evolution. The amount and quality of
the data also allow us to analyse the tidal evolution of the systems in
considerable depth, testing prescriptions of rotational synchronisation and
orbital circularisation in greater detail than possible before. The new data
also enable us to derive empirical calibrations of M and R for single (post-)
main-sequence stars above 0.6 M(Sun). Simple, polynomial functions of T(eff),
log g and [Fe/H] yield M and R with errors of 6% and 3%, respectively.
Excellent agreement is found with independent determinations for host stars of
transiting extrasolar planets, and good agreement with determinations of M and
R from stellar models as constrained by trigonometric parallaxes and
spectroscopic values of T(eff) and [Fe/H]. Finally, we list a set of 23
interferometric binaries with masses known to better than 3%, but without
fundamental radius determinations (except alpha Aur). We discuss the prospects
for improving these and other stellar parameters in the near future.Comment: 56 pages including figures and tables. To appear in The Astronomy and
Astrophysics Review. Ascii versions of the tables will appear in the online
version of the articl
Impacts of organic and conventional crop management on diversity and activity of free-living nitrogen fixing bacteria and total bacteria are subsidiary to temporal effects
A three year field study (2007-2009) of the diversity and numbers of the total and metabolically active free-living diazotophic bacteria and total bacterial communities in organic and conventionally managed agricultural soil was conducted at the Nafferton Factorial Systems Comparison (NFSC) study, in northeast England. The result demonstrated that there was no consistent effect of either organic or conventional soil management across the three years on the diversity or quantity of either diazotrophic or total bacterial communities. However, ordination analyses carried out on data from each individual year showed that factors associated with the different fertility management measures including availability of nitrogen species, organic carbon and pH, did exert significant effects on the structure of both diazotrophic and total bacterial communities. It appeared that the dominant drivers of qualitative and quantitative changes in both communities were annual and seasonal effects. Moreover, regression analyses showed activity of both communities was significantly affected by soil temperature and climatic conditions. The diazotrophic community showed no significant change in diversity across the three years, however, the total bacterial community significantly increased in diversity year on year. Diversity was always greatest during March for both diazotrophic and total bacterial communities. Quantitative analyses using qPCR of each community indicated that metabolically active diazotrophs were highest in year 1 but the population significantly declined in year 2 before recovering somewhat in the final year. The total bacterial population in contrast increased significantly each year. Seasonal effects were less consistent in this quantitative study
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