An Incremental and Model Driven Approach for the Dynamic Reconfiguration of Cloud Application Architectures

In incremental development approaches, the integration of new services into the actual cloud application may trigger the dynamic reconfiguration of the cloud application architecture, thus changing its structure and behavior at runtime. This paper presents a model driven approach that uses the specification of how the integration of new services will change the current cloud application architecture to obtain: i) the orchestration of services, ii) skeletons of interface implementations, and iii) the operationalization of reconfiguration actions to be applied at runtime. This approach follows the DIARy-process, which defines the activities needed to reconfigure dynamically the architecture of cloud services. The feasibility of the approach is illustrated by means of a case study that uses Microsoft Azure© as a service deployment platform. WCF Workflow services are generated and deployed for orchestration, whereas XML transformation files are generated to update services’ binding configurations at runtim

Inversor multinivel con reducción de pérdidas por conmutación

Actualmente en la industria son utilizados dos tipos de inversores, unos con conmutación en baja frecuencia y otros con conmutación en alta frecuencia por medio de PWM. Aquellos que manejan conmutación en baja frecuencia se caracterizan por que eliminan los armónicos más bajos por suma, así mismo eliminan contenido de frecuencia baja por medio de un filtro en la salida que se caracteriza por ser de impedancia alta. Debido a la baja frecuencia que manejan estos inversores en la conmutación, las perdidas asociadas a esta son bajas. Mientras que aquellos inversores que manejan alta frecuencia, eliminan contenido armónico por conmutación, permitiendo que el filtro a la salida sea de menor impedancia, pero generando mayores pérdidas en el inversor, reduciendo su eficiencia se propuso diseñar e implementar una nueva topología de un inversor el cual eliminara cierta cantidad de armónicos por conmutación en baja frecuencia utilizando dos puentes H, y utilizar un tercer puente H el cual al ser conmutado en alta frecuencia eliminaría los armónicos restantes obteniendo a la salida de los tres puentes una señal seno modulada, de la cual obtendríamos el promedio movil tras ser pasada por un filtro pasa bajos, resultando de este modo la señal sinusoidal deseada.Currently in the industry are used two types of investors, low frequency switching and others with high switching frequency using PWM. Those handling low frequency switching are characterized by eliminating the lowest harmonics by summation, also eliminates low frequency content by a filter on the output that is characterized by high impedance . Due to the low frequency handling these investors in the switching losses associated with this are low. While investors who handle high frequency harmonic content removed switched , allowing the filter to the output impedance is smaller , but larger losses in the inverter , reducing its efficiency is proposed to design and implement a new topology of an investor 's which eliminate certain amount of harmonics by switching at low frequencies using two H bridges, and H use a third bridge which to be switched in high frequency harmonics would eliminate remaining obtaining at the outlet of the three bridges sine modulated signal , which would obtain the moving average after being passed through a low pass filter , thus resulting the desired sinusoidal signal.Ingeniero (a) ElectrónicoPregrad

Incremental Integration of Microservices in Cloud Applications

Microservices have recently appeared as a new architectural style that is native to the cloud. The high availability and agility of the cloud demands organizations to migrate or design microservices, promoting the building of applications as a suite of small and cohesive services (microservices) that are independently developed, deployed and scaled. Current cloud development approaches do not support the incremental integration needed for microservice platforms, and the agility of getting new functionalities out to customers is consequently affected by the lack of support for the integration design and automation of the development and deployment tasks. This paper presents an approach for the incremental integration of microservices that will allow developers to specify and design microservice integration, and provide mechanisms with which to automatically obtain the implementation code for business logic and interoperation among microservices along with deployment and architectural reconfiguration scripts specific to the cloud environment in which the microservice will be deployed

Plan de negocios para una empresa de elaboración y comercialización de quesos saborizados, Arequipa, 2016

La presente investigación tiene por objetivo determinar la viabilidad del Plan de negocio para la elaboración y comercialización de quesos saborizados en la ciudad de Arequipa 2016, en el que destaca el crecimiento sostenido del mercado de la leche y sus derivados, y resultan notorios: (a) la predominancia de buscar productos de calidad y novedosos ya que en el mercado actual se encuentra muchos productos derivados de la leche y que al tener como público objetivo un sector de la población debidamente segmentada es que la preferencia es bastante marcada; b)el requerimiento por un nuevo producto implica tener una visión a futuro de iniciar este proyecto en función a la demanda es decir a pedido y buscar nuevos nichos de comercialización con miras a la exportación, toda vez que los controles de calidad deben supervisarse en forma permanente. Se pudo ver claramente que la brecha de la demanda parte desde el informe de los niveles de consumo per-cápita de queso a nivel de la región Arequipa que se encuentra por debajo del promedio nacional, debe tomarse en cuenta a mejorar estos estándares de consumo con productos diversificados y mejorados como son los quesos saborizados de Orégano y Rocoto. Con la finalidad de lograr el propósito del estudio se identificó a grupos segmentados de Yanahuara y Cayma,(A, B y C) en la que no diferenciaban los precios de estos productos sino la frescura, el sabor y otros factores que trascienden a satisfacer los gustos y preferencias por productos mejorados, permitiendo con ello desarrollar el Plan de Negocios sobre la elaboración y comercialización de quesos saborizados, cuyo contenido explica la capacidad del proceso productivo, los costos de producción, los canales de comercialización y el plan financiero que nos permite tomar una decisión de continuar o no con el proyecto, obteniendo resultados positivos a nivel de indicadores económicos y financieros que permiten tener la viabilidad del proyecto.Tesi

A case report of fatal feline babesiosis caused by Babesia canis in north western Spain

In Europe, Babesia infections in cats are sporadic and only partial knowledge is currently available since the number of described cases including both the clinical presentation and the molecular identification of the Babesia species involved is limited. In the present case report, the clinical signs, the epidemiological data and the molecular results suggest that this is the first reported fatal case of feline babesiosis caused by Babesia canisThis research was funded by the Program for consolidating and structuring competitive research groups (ED431C 2019/04, Xunta de Galicia, Spain). The funder had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscriptS

Estructura cristalina de la succinodiamidoxima (c4h10n4o2)

Se ha determinado la estructura cristalina de la succinodiamidoxima. Pertenece al sistema monoclínico; P21/n; a=4.883(1), b=5.197(2), c=13.283(2) A, β=100.75(2)º; V=331.2(2 ) A3; Z=2; M=146.149; Dcal.=1.465 Mg.m-3; λ=1.5405 A; μ=9.625 cm-1;F(000) =156; valor final de R=0.040, para 2207 reflexiones observadas, medidas a temperatura ambiente; Rw=0.036.Monoclinic P21/n; a=4.883(1), b=5.197(2), c=13.283(2) A, β=100.75(2)º; V=331.2(2 ) A3; Z=2; M=146.149; Dcal.=1.465 Mg.m-3; λ=1.5405 A; μ=9.625 cm-1;F(000) =156; R=0.040, four 2207 observed reflexions, room temperature; Rw=0.036

Estructura cristalina de la succinodiamidoxima (c4h10n4o2)

Se ha determinado la estructura cristalina de la succinodiamidoxima. Pertenece al sistema monoclínico; P21/n; a=4.883(1), b=5.197(2), c=13.283(2) A, β=100.75(2)º; V=331.2(2 ) A3; Z=2; M=146.149; Dcal.=1.465 Mg.m-3; λ=1.5405 A; μ=9.625 cm-1;F(000) =156; valor final de R=0.040, para 2207 reflexiones observadas, medidas a temperatura ambiente; Rw=0.036.Monoclinic P21/n; a=4.883(1), b=5.197(2), c=13.283(2) A, β=100.75(2)º; V=331.2(2 ) A3; Z=2; M=146.149; Dcal.=1.465 Mg.m-3; λ=1.5405 A; μ=9.625 cm-1;F(000) =156; R=0.040, four 2207 observed reflexions, room temperature; Rw=0.036

A Novel Adaptive Synchronous Rectification System for Low Output Voltage Isolated Converters

The design of efficient isolated low output voltage converters is a major concern due to their widespread use. One of the preferred methods used to maximize their efficiency is synchronous rectification (SR), i.e., the replacement of the secondary side diodes with MOSFETs to decrease conduction losses. However, depending on the topology being used, SR might not provide the required efficiency improvement or even be easily implemented. This paper presents a novel SR system that can be applied to converters with symmetrically driven transformers and to converters from the flyback family; in both cases, the proposed system adaptively generates a control signal that controls a synchronous rectifier MOSFET placed in parallel with each diode, turning it on during the conduction intervals of the diodes. The proposed system uses only information from the secondary side, thus avoiding breaking the isolation barrier; it can be built using a few low-cost analog components, is reliable and simple, and could be easily implemented in an integrated circuit. Up to a 3% improvement is demonstrated in a 3.3-5-V 120-W push-pull converter, and up to a 2.5% improvement is obtained in a 5-V 50-W flyback converter, with both of them designed for telecom application

Plan de mejoramiento para el clima organizacional de la Institución Educativa La Planada en Balboa Cauca para el año 2023

Encuesta, entrevistaEl trabajo se centra principalmente en la realización de un diagnóstico del clima organizacional, para determinar la forma como se administra el talento humano en la Institución Educativa La Planada, en Balboa- Cauca, para el año 2023, fomentando la importancia del clima organizacional, para los docentes, administrativos y rector de la institución, esta iniciativa surge teniendo en cuenta que dentro de la Institución Educativa La Planada no hay un adecuado clima organizacional, todo esto afecta principalmente a los estudiantes con respecto al bajo nivel educativo impartido por los docentes ,lo cual conlleva a que haya un bajo rendimiento académico en la institución, teniendo en cuenta lo anterior surge la necesidad de realizar este trabajo investigativo. Es de resaltar que el problema para que permanezcan los conflictos en las instituciones inicialmente se debe a dos situaciones; por un lado, la ausencia de un mediador que permita conciliar las partes; por otro, las actitudes de los contendores, la aceptación del problema como algo irresoluble, no hay duda de que la posición que se tiene o se le da al conflicto puede hacer que se solucione o se profundice, Por esto es relevante generar estrategias y espacios con el propósito de buscar una convivencia sana y armónica dentro de la institución. Teniendo en cuenta lo mencionado anterior mente y para poder que la investigación sea exitosa se realizará una investigación de tipo mixta y el estudio será enfocado a los docentes, directivos y personal administrativo, de la Institución Educativa La Planada y los métodos a emplear serán de manera teórico prácticas, mediante la implementación de encuestas online, entrevistas y análisis de los datos. Con la realización de la entrevista y encuesta realizada a los docentes de la Institución Educativa La Planada podemos identificar que se obtuvieron resultados positivos en los cuales se identifica y se puede concluir que se debe de tener mayor comunicación asertiva entre docentes y rector de la institución, al igual que se debe de propiciar encuentros pedagógicos que estimulen los docentes del plantel y reciban un incentivo por su adecuado desempeño en la institución lo cual fomentara más el trabajo del personal.The work is mainly focused on carrying out a diagnosis of the organizational climate, to determine the way in which human talent is managed in the La Planada Educational Institution, in Balboa-Cauca, by the year 2023, promoting the importance of the organizational climate, for the teachers, administrators and rector of the institution, this initiative arises taking into account that within the La Planada Educational Institution there is not an adequate organizational climate, all this mainly affects the students with respect to the low educational level taught by the teachers, which which leads to low academic performance in the institution, taking into account the above, the need to carry out this investigative work arises. It is noteworthy that the problem for conflicts to remain in the institutions is initially due to two situations; on the one hand, the absence of a mediator that allows the parties to reconcile; on the other, the attitudes of the contenders, the acceptance of the problem as something unsolvable, there is no doubt that the position that one has or gives to the conflict can cause it to be solved or deepened. For this reason, it is relevant to generate strategies and spaces with the purpose of seeking a healthy and harmonious coexistence within the institution. Taking into account the aforementioned and in order for the investigation to be successful, a mixed type investigation will be carried out and the study will be focused on teachers, managers and administrative personnel of the La Planada Educational Institution and the methods to be used will be theoretical practices, through the implementation of online surveys. interviews and data analysis. With the realization of the interview and survey carried out to the teachers of the Educational Institution La Planada we can identify that positive results were obtained in which it is identified and it can be concluded that there should be more assertive communication between teachers and the rector of the institution, Likewise, pedagogical meetings should be promoted that stimulate the teachers of the campus and receive an incentive for their adequate performance in the institution, which will further encourage the work of the staff

Walking in pregnancy and prevention of insomnia in third trimester using pedometers: study protocol of Walking_Preg project (WPP). A randomized controlled trial

Background: Previous studies in pregnancy have not focused in evaluating the effect of walking during pregnancy and prevention of insomnia. Our general objective is to determine the effect of a walking program in preventing the appearance of insomnia in the third trimester of pregnancy, increasing sleep quality and improving quality of life throughout pregnancy. Methods: Randomized Controlled trial in parallel in healthy sedentary pregnant women (n = 265), Walking_Preg Project (WPP), from university hospital in Granada, Spain. At 12th gestational week (GW), they will be invited to participate and randomly assigned to one of the three arms of study: the intervention group I1 (pedometer, goal of 11,000 steps/day), intervention group I2 (pedometer, no goal) and control (no pedometer). Duration of intervention: 13–32 GW. At 12th, 19th and 31st GW the average steps/day will be measured in groups I1 and I2. At 13th, 20th and 32nd GW, Athens Insomnia Scale (AIS), Pittsburgh Sleep Quality Index (PSQI), Adherence to Mediterranean Diet (AMD), physical activity (short IPAQ), quality of life (PSI), and consumption of toxic substances (caffeine, illegal drugs, alcohol and tobacco) will be collected. Student t test or Mann-Whitney U will be used to compare 19th and 31st GW mean of daily steps between I1 and I2 groups. To compare differences between groups in terms of frequency of insomnia/quality of life for each trimester of pregnancy, Pearson’s Chi-square test or Fisher’s exact test will be used. To determine differences in hours of sleep and quality of sleep throughout each trimester of pregnancy, analysis of variance or Friedman test will be used. McNemar-Bowker test will be used to assess differences in life quality in pre-post analyses in the 3 arms. We will use Stata 15 statistical software.Fundacion Publica Andaluza para la Investigacion Biosanitaria (FIBAO - IBS) PI-0350-201