Phases Dynamic Balancer

Most of the current domestic installations are single phase, with contracted power equal to or less than 15 kW and with a potential difference of 230 V. When consumption is expected to be higher you choose to use three different alternating currents with a difference voltage of 400 V between them, which are called phases. This enables the subdivision of the installation in different single-phase circuits, fed independently with the neutral installation. These couples have, in turn, a difference in voltage of 230 V. The neutral is common for all three phases so that, if the system is balanced, no current flows through it. The problem with these installations is that they are designed to work in an offset manner, using phase loads, and simultaneously an equal amount of energy consumed by the three phases of the network. Connection to each of the phases makes independent single-phase loads or disturbance of the operation of the original phase circuit and, consequently, the corresponding increases in consumption, heating of engines, etc.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Gestación no controlada como factor de riesgo para sespis neonatal precoz en Hospital Nivel II, El Porvenir

Objetivo: Determinar si la gestación no controlada es un factor de riesgo para sepsis neonatal precoz en hospital nivel II del Distrito del Porvenir en el año 2016. Material y Método: se realizó un estudio retrospectivo, de corte longitudinal, observacional, analítico de casos y controles. La población de estudio estuvo constituida de 136 recién nacidos atendidos en el servicio de Gineco – Obstetricia y Neonatología del Hospital Distrital Santa Isabel, el Porvenir, Trujillo durante el periodo 2016; los cuales según los criterios de selección establecidos, fueron distribuidos en dos grupos: 34 recién nacidos con Sepsis Neonatal Precoz y 102 sin patología. Para el análisis estadístico se utilizó la prueba de Chi Cuadrado y se consideró asociación estadística a un valor p < 0.05 y el Odds Ratio como estadígrafo, utilizando el paquete estadístico SPPS 23.0 Resultados: La proporción de la Gestación no Controlada fue mayor en el grupo de recién nacidos con Sepsis Neonatal precoz con 64.7 % en comparación con el grupo de recién nacidos sin patología con 27.5 %, con una diferencia estadísticamente significativa de p = 0.001 hallándose un OR = 4.269. Demostrando que los Recién Nacidos de Gestantes no Controladas mostraron un Riesgo de sufrir sepsis neonatal precoz de 4,27 veces más frente a los Recién Nacidos de Gestantes Controladas, con un IC 95% 1.886 – 9.664. Conclusiones: La Gestación no Controlada es factor de Riesgo para Sepsis Neonatal Precoz en Hospital Distrital Santa Isabel, el porvenir.Objective: To determine whether uncontrolled gestation is a risk factor for early neonatal sepsis in the Hospital District of the Porvenir District in 2016. Material and Method: A retrospective, longitudinal, observational, analytical case and control study was performed. The study population consisted of 136 newborns attended in the Gineco - Obstetrics and Neonatology service of the Santa Isabel District Hospital, Porvenir, Trujillo during the period 2016; Which according to the established selection criteria, were divided into two groups: 34 neonates with Neonatal Precocious Sepsis and 102 with no pathology. For the statistical analysis, the Chi square test was used and a statistical association was considered at p <0.05 and the Odds Ratio as statistician using the SPPS 23.0 statistical package Results: The proportion of uncontrolled gestation was higher in the group of infants with early neonatal sepsis with 64.7% compared with the group of infants with no pathology with 27.5%, with a statistically significant difference of p = 0.001 with an OR = 4.269. Demonstrating that the Newborns of Uncontrolled Pregnant Women showed a risk of suffering from early neonatal sepsis of 4.27 times more than Newborns of Controlled Pregnant Women, with a 95% CI 1,886 - 9,664. Conclusions: Uncontrolled pregnancy is a risk factor for early neonatal sepsis in Santa Isabel District Hospital of Porvenir.Tesi

An economic evaluation of salt reduction policies to reduce coronary heart disease in England: a policy modeling study

AbstractObjectivesDietary salt intake has been causally linked to high blood pressure and increased risk of cardiovascular events. Cardiovascular disease causes approximately 35% of total UK deaths, at an estimated annual cost of £30 billion. The World Health Organization and the National Institute for Health and Care Excellence have recommended a reduction in the intake of salt in people's diets. This study evaluated the cost-effectiveness of four population health policies to reduce dietary salt intake on an English population to prevent coronary heart disease (CHD).MethodsThe validated IMPACT CHD model was used to quantify and compare four policies: 1) Change4Life health promotion campaign, 2) front-of-pack traffic light labeling to display salt content, 3) Food Standards Agency working with the food industry to reduce salt (voluntary), and 4) mandatory reformulation to reduce salt in processed foods. The effectiveness of these policies in reducing salt intake, and hence blood pressure, was determined by systematic literature review. The model calculated the reduction in mortality associated with each policy, quantified as life-years gained over 10 years. Policy costs were calculated using evidence from published sources. Health care costs for specific CHD patient groups were estimated. Costs were compared against a “do nothing” baseline.ResultsAll policies resulted in a life-year gain over the baseline. Change4life and labeling each gained approximately 1960 life-years, voluntary reformulation 14,560 life-years, and mandatory reformulation 19,320 life-years. Each policy appeared cost saving, with mandatory reformulation offering the largest cost saving, more than £660 million.ConclusionsAll policies to reduce dietary salt intake could gain life-years and reduce health care expenditure on coronary heart disease

Community-based tourism in Cape Verde - a case study

Community-based tourism is taking its place in the world as an alternative to traditional tourist destinations, especially in developing countries. This form of tourism allows for greater contact with the local community and for the tourist to experience new sensations while enabling the economic and social development of the geographic area. In this paper, the results of fieldwork carried out in the island of Fogo (Cape Verde) are presented, assessing the opinion and perception tourists visiting this island have of both the quality of the services offered by community-based tourism enterprises, as well as the potential of the tourism resources in the area. The main results of the investigation endorse the quality of services offered to tourists by local businesses and highlight the hospitality of the local community, a key element for the development of this kind of tourism, particularly in different african countries. Similarly, it highlights the passenger satisfaction with services received and the need to strengthen the training to tourism staff through aid, for example, international cooperation, NGOs and universities. The originality of this research comes from analysis of the demand made on a concrete island of Cape Verde, a country which is producing a huge economic development through the tourism sector

Projections of future burden of pharmacologically treated type 2 diabetes and associated life expectancies by income in Finland: a multi-state modeling study

The burden of type 2 diabetes (T2D) differs between socioeconomic groups. The present study combines ongoing and plausible trends in T2D incidence and survival by income to forecast future trends in cases of T2D and life expectancy with and without T2D up to year 2040. Using Finnish total population data for those aged 30 years on T2D medication and mortality in 1995–2018, we developed and validated a multi-state life table model using age-, gender-, income- and calendar year-specific transition probabilities. We present scenarios based on constant and declining T2D incidence and on the effect of increasing and decreasing obesity on T2D incidence and mortality states up to 2040. With constant T2D incidence at 2019-level, the number of people living with T2D would increase by about 26% between 2020 and 2040. The lowest income group could expect more rapid increases in the number with T2D compared to the highest income group (30% vs. 23% respectively). If the incidence of T2D continues the recent declining trend, we predict about 14% fewer cases. However, if obesity increases two-fold, we predict 15% additional T2D cases. Unless, we reduce the obesity-related excess risk, the number of years lived without T2D could decrease up to 6 years for men in the lowest income group. Under all plausible scenarios, the burden of T2D is set to increase and it will be unequally distributed among socioeconomic groups. An increasing proportion of life expectancy will be spent with T2D

Comparing Strategies to Prevent Stroke and Ischemic Heart Disease in the Tunisian Population: Markov Modeling Approach Using a Comprehensive Sensitivity Analysis Algorithm.

Background. Mathematical models offer the potential to analyze and compare the effectiveness of very different interventions to prevent future cardiovascular disease. We developed a comprehensive Markov model to assess the impact of three interventions to reduce ischemic heart diseases (IHD) and stroke deaths: (i) improved medical treatments in acute phase, (ii) secondary prevention by increasing the uptake of statins, (iii) primary prevention using health promotion to reduce dietary salt consumption. Methods. We developed and validated a Markov model for the Tunisian population aged 35–94 years old over a 20-year time horizon. We compared the impact of specific treatments for stroke, lifestyle, and primary prevention on both IHD and stroke deaths. We then undertook extensive sensitivity analyses using both a probabilistic multivariate approach and simple linear regression (metamodeling). Results. The model forecast a dramatic mortality rise, with 111,134 IHD and stroke deaths (95% CI 106567 to 115048) predicted in 2025 in Tunisia. The salt reduction offered the potentially most powerful preventive intervention that might reduce IHD and stroke deaths by 27% (−30240 [−30580 to −29900]) compared with 1% for medical strategies and 3% for secondary prevention. The metamodeling highlighted that the initial development of a minor stroke substantially increased the subsequent probability of a fatal stroke or IHD death. Conclusions. The primary prevention of cardiovascular disease via a reduction in dietary salt consumption appeared much more effective than secondary or tertiary prevention approaches. Our simple but comprehensive model offers a potentially attractive methodological approach that might now be extended and replicated in other contexts and populations

Metadomotic Optimization Using Genetic Algorithms

New technologies applied in domotic allow us to extract plenty of data about the usual behavior of occupants in any installation. Discipline that works with these data for the pursuit of new knowledge is called Metadomotic. To achieve this learning and relationships between different data, we make use of the tools provided by artificial intelligence. Today the use of these techniques in solving problems is fully extended. Among the best known we will focus on the application of genetic algorithms, technical halfway between biology and mathematics, to try to resolve the issues raised in this paper. This article proposes the classification of domotic parameters to optimize an objective function. In a nutshell we will try two possible applications: 1. The minimization of energy consumption through the classification of the parameters of use and consumption coefficients, inherent to each user and device 2. The maximization of industrial production through the influence of environment parameters Once established several basic suboptimal solutions, they will be combined randomly, through the crossover, mutation and cloning, to try to find the optimal.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Relationship between family characteristics and sex offences by young males

The aim of this paper is to explore the relationship between family characteristics and young sex offenders. The analysis used draws upon data from juvenile delinquents in the England's secure Youth Treatment Service in 1999, containing 126 males between 11 and 17 years old. A binary logistic regression analysis was conducted to ascertain the relationship of family factors (i.e., family structure, domestic violence, criminality, alcohol and drugs misuse, and psychiatric illness) on the likelihood that adolescents become sex offenders. Results suggest that all variables used in the logistic regression model were associated with committing a sex offence, except foster care, which reveals that foster placements are a protective factor related to sexual offending behaviours. Additional findings and implications are discussed

Estudio de tiempos para la construcción de una embarcación (Caso: Empresa Sima-Callao)

Publicación a texto completo no autorizada por el autorRealiza el análisis y evaluación de los procesos productivos, así como el desempeño operativo del Taller X-40 (construcciones navales), perteneciente a la empresa SIMA-PERÚ (Centro Operativo Callao), ayudándose de herramientas de la ingeniería industrial que permitirán entender y mejorar las operaciones en la construcción de una embarcación; tales como el estudio de tiempos, diagramas de actividades de procesos, diagrama causa-efecto, entre otros. Se muestran los estándares de producción obtenidos y que actualmente se encuentran vigentes para su uso adecuado. Además, luego del análisis, se hace énfasis en algunas deficiencias encontradas en las actividades que se realizan, y se plantean soluciones con el objetivo de incrementar la productividad del sistema.Trabajo de suficiencia profesiona