Local polynomial regression estimation with correlated errors

In this paper, we study the nonparametric estimation of the regression function and its derivatives using weighted local polynomial fitting. Consider the fixed regression model and suppose that the random observation error is coming from a strictly stationary stochastic process. Expressions for the bias and the variance array of the estimators of the regression function and its derivatives are obtained and joint asymptotic normality is established. The influence of the dependence of the data is observed in the expression of the variance. We also propose a variable bandwidth selection procedure. A simulation study and an analysis with real economic data illustrate the proposed selection method.Xunta de Galicia; XUGA10501B97Xunta de Galicia; PB98-0182-c02-0

Fundamentos jurídicos para justificar objetiva y razonablemente el trato remunerativo diferenciado

La presente Tesis, a la cual hemos intitulado: “Fundamentos Jurídicos para justificar objetiva y razonablemente el trato remunerativo diferenciado” tiene como objetivo analizar cuáles son los Fundamentos Jurídicos que deberían tener en cuenta los operadores del derecho para justificar objetiva y razonablemente un trato remunerativo diferenciado, a fin de identificar aquellos factores de diferenciación salarial que vulneran el derecho constitucional a la igualdad. Para tal efecto, se realiza una revisión de la doctrina especializada que nos permita identificar los criterios de diferenciación salarial que resultan válidos constitucionalmente, y luego se examina la casuística recaída en los fallos de tribunales peruanos. El trabajo concluye que no existe una regulación que establezca lineamientos claros y objetivos para la elaboración de escalas salariales en el empleo público, pues la legislación solo se limita a normar el piso mínimo y el tope máximo de remuneración que puede percibir un servidor público, ello ocasiona que las escalas varíen sustancialmente de una Entidad a otra, e incluso dentro de una misma organización, lo cual trasgrede el derecho a la igualdad remunerativa. Así también, se apuntala que se vulnera el derecho a la igualdad remunerativa cuando la organización estatal aprueba una escala remunerativa que establece mayores salarios solo para un régimen laboral, aun cuando coexistan, dentro de aquella, dos o más regímenes laborales.This thesis, which we have entitled: "Legal Foundations to justify objectively and reasonably differentiated remunerative treatment" aims to analyze what are the legal foundations that should take into account the operators of the right to justify objective and reasonably differentiated remuneration, in order to identify those factors of wage differentiation that violate the constitutional right to equality. For this purpose, a review of the specialized doctrine that allows us to identify the salary differentiation criteria that are valid constitutionally is made, and then the casuistry relapsed in the judgments of Peruvian courts is examined. The work concludes that there is no regulation that establishes clear and objective guidelines for the elaboration of salary scales in public employment, since the legislation is limited to regulating the minimum floor and the maximum remuneration ceiling that a public servant can perceive, causes that the scales vary substantially from one Entity to another, and even within the same organization, which transgresses the right to remunerative equality. Likewise, it is supported that the right to remunerative equality is violated when the state organization approves a remunerative scale that establishes higher wages only for a labor regime, even when two or more labor regimes coexist within it.Tesi

Biomimicry in climate adaptive building skins: relevance of applying principles and strategies

There is growing interest in scientific literature and in research projects on climate adaptive building skins -CABS-. A large development of this type of building skins is expected, because of the advantages they offer over other skins, such as th e improvement of environmental quality and energy efficiency, the adaptability to c limate and changing uses of buildi ngs, the ability to use low exergy sources, the potential for integrating architectural design principles with energy efficiency, the possibility of driving the research on new technologies a nd a greater efficiency in the use of materials. However, this development is not taking place in practice, since most projects either remain on experimental prototypes or are im plemented in high budget buildings. This paper examines the relevance of applying a bi omimetic approach to the design of CABS, given the adaptive behaviour of both systems. By studying the correlation between the functi onal requirements of adaptive building skins and adaptive strategies that can be found in natural organisms, we address the possible overcoming of some limits they face in their development – from design, technological, economic and social-. The aim is to further the implementation of biomim etic principles and adaptive strategies to enhance adaptive behaviour, take advantage of the evoluti onary knowledge that nature provides, derive applying principles to achieve best architectural solutions, serve as a driver of innovation in architecture and promote efficiency and sustainabilit y in building skins, using principles such as optimality in resource management, resilience behaviour , exchange of information and energy with the environment, complexity by organization of simple elements, or multifunctionality. Finally, biomimicry has shown to be a suitable approach, which, by putting systematic design processes into practice, yet to achieve, could promot e the widespread developm ent of climate adaptive building skins

On the uniform strong consistency of local polynomial regression under dependence conditions

This is a preprint of an article submitted for consideration in the Communications in Statistics, Theory and Methods © 2003 copyright Taylor & Francis ; Communications in Statistics, Theory and Methods is available online at: http://www.informaworld.com/[Abstract] In this paper, nonparametric estimators of the regression function, and its derivatives, obtained by means of weighted local polynomial fitting are studied. Consider the fixed regression model where the error random variables are coming from a stationary stochastic process satisfying a mixing condition. Uniform strong consistency, along with rates, are established for these estimators. Furthermore, when the errors follow an AR(1) correlation structure, strong consistency properties are also derived for a modiÞed version of the local polynomial estimators proposed by Vilar-Fernández and Francisco-Fernández in (1).Ministerio de Ciencia y Tecnología; PGIDT01PXI10505PRMinisterio de Ciencia y Tecnología; PB98-0182-C02-01Ministerio de Ciencia y Tecnología; BFM2002-0026

Propuesta de implementación de requisito 7 de la norma ISO 9001:2008 en el laboratorio clínico Dra. Ximena González

146 p.Laboratorio Dra. Ximena González es una empresa que tiene mas de 23 años en el Mercado de laboratorios clínicos, su oficina principal se encuentra ubicada en Talca, actualmente se dedican a diferentes toma de muestras dentro y fuera de la ciudad y están trabajando para certificar la norma ISO 9001:2008, con lo que obtendrán un grado de calidad mas alto.En el presente proyecto se desarrolla una propuesta para el requisito 7 de la norma ISO 9001:2008, enfocando las labores en el desarrollo de herramientas útiles para el laboratorio, de esta forma se elaboro una propuesta de perfiles de cargo, en donde se describe y analiza cada uno de ellos, por otra parte se formalizan los procesos internos del laboratorio desde que el paciente entra al laboratorio hasta que sale con su informe de exámen en mano, y por ultimo se realizan los pasos necesarios para verificar la calibración de un equipo de trabajo del laboratorio (Siemens Advia 120). Una vez terminado el desarrollo de cada punto se procede a realizar una propuesta de implementación con su costo respectivo en base a las acciones a tomar, por último se hacen recomendaciones del uso que se le pueden dar a los perfiles de cargo, la formalización de procesos y verificación de calibración