A Generalization of a Gaussian Semiparametric Estimator on Multivariate Long-Range Dependent Processes

In this paper we propose and study a general class of Gaussian Semiparametric Estimators (GSE) of the fractional differencing parameter in the context of long-range dependent multivariate time series. We establish large sample properties of the estimator without assuming Gaussianity. The class of models considered here satisfies simple conditions on the spectral density function, restricted to a small neighborhood of the zero frequency and includes important class of VARFIMA processes. We also present a simulation study to assess the finite sample properties of the proposed estimator based on a smoothed version of the GSE which supports its competitiveness

The Portuguese National Health Service and the patient health information workgroup

Workgroup) was established under the CAIC - Comissão de Acompanhamento da Informatização Clínica (Monitoring Committee of the Clinical Information Technology) of the SPMS - Serviços Partilhados do Ministério da Saúde (Shared Services for Health Ministry) in order to meet the challenges of new models of management and governance centered on citizens. This workgroup is grounded on the national information campaign named as “Health Information. More Transparency, Better Decision”, a project of the Associação Fazedores da Mudança (The Change Makers Association) with financial support of Fundação Calouste Gulbenkian (Calouste Gulbenkian Foundation). Objectives: To promote discussion topics and present concrete proposals, centered on patients, primarily related with: access to certified, reliable and useful health information; communication strategies; services to be made available on the Patient’s Portal/website. Methodology: A multidisciplinary and inter-institutional group has been constituted with physicians, nurses, sociologists, social workers, health librarians, human resource managers, lawyers and IT experts. The mission is to design and implement an action plan until December 2016. To the design of the action plan, five main axes were identified: To Know, To Listen, To Improve, To Inform and To Evaluate. Based on a worksheet created for this purpose, the multidisciplinary group identified some actions/tasks to be undertaken. As a result of all the contributions made, a possible and feasible Action Plan was created, supported by some validation criteria: to be aggregator of the presented ideas, to be mobilizers, to enhance multiplier effects, to be impactful, to be structural for future work, to enhancing participation, making awareness and calling for change. Results: Attempting on this action plan that integrates 5 major initiatives underway at a national level, we intend to achieve the following results based on multiple participatory processes, such as: i) the presentation of the resulting recommendations to the Parliament in order to change the legal framework that regulates access to health information; ii) the identification of useful information for patients; iii) the development of a program consistent of concrete action proposals centered on the patient, for more information, more transparency and better access. This paper aims to present the project and the results already achieved with its implementation.info:eu-repo/semantics/publishedVersio

MCMC Bayesian Estimation in FIEGARCH Models

Bayesian inference for fractionally integrated exponential generalized autoregressive conditional heteroskedastic (FIEGARCH) models using Markov Chain Monte Carlo (MCMC) methods is described. A simulation study is presented to access the performance of the procedure, under the presence of long-memory in the volatility. Samples from FIEGARCH processes are obtained upon considering the generalized error distribution (GED) for the innovation process. Different values for the tail-thickness parameter \nu are considered covering both scenarios, innovation processes with lighter (\nu2) tails than the Gaussian distribution (\nu=2). A sensitivity analysis is performed by considering different prior density functions and by integrating (or not) the knowledge on the true parameter values to select the hyperparameter values

Development of a Digital Repository Prototype applied to Faculty of Pharmacy, University of Lisbon

University libraries have played a key role in scientific research as well as in the support of education-related activities. Their main goal is to provide their users with immediate access to relevant information through updated information sources. Science evolves rapidly and so the daily information needs on health matters are large and require rapid access to the sources. One of the problems that currently exist in university libraries is the access and processing of information in digital format. Digital objects are technologically diverse and there is not enough technical information regarding its proper handling. In this paper we present the tools and methodologies that should be used to provide, in an organized and validated way, the wide range of existing information in a digital format. This work was done in the context of a Master of Science thesis in Information Studies and Digital Libraries. The aim was to find practical solutions for the processing and offering of information in digital format in the context of pharmaceutical sciences. Finally, the paper presents reliable benchmarking of best practices to implement and evaluate a prototype applied to the Pharmaceutical Sciences, in order to satisfy the user’s needs

The Lista APDIS Online: a new vision for an existent service

The Lista APDIS Online (LAO) is a platform for scientific journals in Portuguese health science libraries launched in 2002, allowing efficiency in Inter-library loan services, journals searching, copy requests and their management among institutions. The evolution to a new version was essential. To develop and implement this new platform, the workflow of technical development was defined and the processes of upgrade and migration from the previous to the new database planned. Besides all functionalities of the previous version, the new version has a new database structure, a renewed layout, the ability forf libraries to update their contents and the existence of a user workstation allowing catalog search and requests. Success is predictable by over 1600 orders in only 5 months