El efecto de redundancia en el aprendizaje predictivo humano: Evidencia en contra de una interpretación proposicional.

The redundancy effect is the finding of greater learning when an X stimulus is trained in an A+ AX+ blocking procedure, than when a Y stimulus is trained in a BY+ CY- discrimination procedure. These findings are new and theoretically challenging for all conditioning theories that calculate learning based on a common error. For this reason, we alternatively examined the possibility that the phenomenon is the result of a propositional reasoning. In an experiment, we replicated the basic effect and we found out that the addition of instructions on the occurrence of the consequences at a submaximal level does not have a significant impact on the redundancy effect. These findings are discussed with regard to a propositional and associative approach based on the assumption that the experimental stimuli share a common feature.El efecto de redundancia es el hallazgo de un mayor aprendizaje a un estímulo X entrenado en un procedimiento de bloqueo A+ AX+, que a un estímulo Y entrenado en un procedimiento de discriminación BY+ CY-. Estos hallazgos son nuevos y teóricamente desafiantes para todas las teorías del condicionamiento que calculan el aprendizaje en base a un error común. Es por ello que examinamos alternativamente la posibilidad que el fenómeno sea el resultado de un razonamiento proposicional. En un experimento, replicamos el efecto básico y encontramos que la adición de instrucciones sobre la ocurrencia de las consecuencias a un nivel sub-máximo no tiene un efecto significativo sobre el efecto de redundancia. Estos hallazgos son discutidos en relación con una aproximación proposicional y asociativa basada en el supuesto que los estímulos experimentales comparten un elemento común

The influence of the Ratio Bias phenomenon on the elicitation of Standard Gamble utilities

This paper tests whether logically equivalent risk formats can lead to different health state utilities elicited by means of the standard gamble (SG) method. We compare SG utilities elicited when probabilities are framed in terms of frequencies with respect to 100 people in the population (i.e., X out of 100) with SG utilities elicited for frequencies with respect to 1,000 people in the population (i.e., Y out of 1,000). We found that utilities were significant higher when success and failure probabilities were framed as frequencies type “Y out of 1,000” rather than as frequencies type “X out of 100”. This framing effect, known as Ratio Bias, may have important consequences in resource allocation decisions.Framing effect, risk format, standard gamble, health state, dual-process theories.

Exploring the whole value of corporate volunteering

Volunteering through the workplace is growing, with companies investing millions of dollars into it but possessing little knowledge of its value. This paper explores the value that a corporate volunteering programme (EDP Group) generated. The analysis was based on a new model, the “whole value model”, which resulted from the adaptation of a model that Andrew Haldane advocated in 2014. It showed that a corporate volunteering programme could generate an estimated average of at least €3.55 for every €1 invested and the potential return on a volunteer hour was guaranteed to be 5.75 times higher than its costs. This case study showed that the economic value was a small part of the whole value generated (estimated to be at least 22 times larger than just the economic value). The study facilitated the setting and testing of a new model for the value analysis of corporate volunteering.info:eu-repo/semantics/publishedVersio

Infection By The Human Papillomavirus In Teenagers Sexually Active: Clinic And Subclinic Manifestations.

This research studies the association of the cervical condyloma with the intraepithelial neoplasia, during sex activity, pregnancy, diagnose methods, cytology and colposcopy in teenagers. The objective of this research is to study the propaedeutics for the uterine coli condyloma diagnose in a group of teenagers. For this purpose, we have studied 131 teenagers sexually active with ages between 14 and 19 years and presenting histologically confirmed uterine coli condyloma. Association with intraepithelial neoplasia, sexual activity duration, method of diagnose, pregnancy analysis, cytology and colposcopy results and association with vulva and vagina injuries were evaluated. The high association rate with condyloma and intraepithelial neoplasia after a short time of sexual activity and the none presence of macroscopic warts in the genital organs in 80% of cases presenting cervical condyloma, demonstrate that: a more careful investigation with colposcopy and biopsy of the inferior genitals of the women-teenagers sexually active is needed, when presenting modified cervical cytology.113494895

Who can assess HR performance in IT/IS projects: a review

Acting in markets characterized by a growing demand, organizations need to manage their human resources effectively and nowadays recognize that human resources (HR) are key elements to obtain success. In fact, organizations, by looking for operation optimization, have interest in enhancing the performance of human resources through systematic appraisals, by collecting and using information from individual and team performance. In the context of information technology/information systems (IT/IS) projects, the research that focuses on HR performance appraisal is scarce. To help fill this gap this paper presents a review of sources on performance information, which are applicable to these kind of projects.This work has been supported by COMPETE: POCI-01-0145-FEDER-007043 and FCT - Fundação para a Ciência e Tecnologia within the Project Scope: UID/CEC/00319/2013.info:eu-repo/semantics/publishedVersio

Enabling parametric design space exploration by non-designers

In mass customization, software configurators enable novice end-users to design customized products and services according to their needs and preferences. However, traditional configurators hardly provide an engaging experience while avoiding the burden of choice. We propose a Design Participation Model to facilitate navigating the design space, based on two modules. Modeler enables designers to create customizable designs as parametric models, and Navigator subsequently permits novice end-users to explore these designs. While most parametric designs support direct manipulation of low-level features, we propose interpolation features to give customers more flexibility. In this paper, we focus on the implementation of such interpolation features into Navigator and its user interface. To assess our approach, we designed and performed user experiments to test and compare Modeler and Navigator, thus providing insights for further developments of our approach. Our results suggest that barycentric interpolation between qualitative parameters provides a more easily understandable interface that empowers novice customers to explore the design space expeditiously

Aplicação da metodologia Lean no serviço de manutenção de uma empresa alimentar

Dissertação para obtenção do Grau de Mestre em Engenharia MecânicaA manutenção industrial tem ganho cada vez maior importância nas empresas. As exigências atuais obrigam os responsáveis pela manutenção a procurarem novas formas novas formas de organização, utilizando técnicas e metodologias que normalmente são utilizadas na gestão de outras áreas funcionais de empresas No âmbito da realização de dissertação de mestrado, estabeleceu como objetivo o estudo de melhoria do serviço de manutenção de uma empresa do ramo alimentar. Foi efetuado o levantamento e a análise pormenorizada de informações relativas a uma linha de produção, que serviu de elemento principal de estudo, e de organização atual do serviço de manutenção na empresa. A análise das atividades de manutenção foi realizada com a utilização de algumas técnicas da metodologia Lean. Foram identificados alguns desperdícios tanto na produção da fábrica como também no serviço de manutenção, sob o ponto de vista do pensamento Lean. Foram propostas soluções que visam reduzir ou eliminar os desperdícios identificados. As soluções apresentadas surgiram através da aplicação de várias ferramentas analíticas da metodologia Lean: 5 S; Kaizen; PDCA (plan-do-check-act); TPM (manutenção autónoma) e mapeamento do fluxo de valor. Algumas soluções apresentadas são de aplicação: curto-prazo, outras são a médio-prazo e outras são a longo-prazo. A implementação das soluções Lean, teria um impacto muito positivo, com resultados na melhoria do serviço de manutenção e na moral dos colaboradores

Influência do pericarpo na germinação de sementes de Nó-de-cachorro em meio de cultura.

O objetivo do trabalho foi avaliar a influência do pericarpo na germinação de sementes e vigor de plântulas em meio de cultura.bitstream/CPAP-2009-09/56794/1/BP80.pd

A case study on model checking and deductive verification techniques of safety-critical software

Due to the growing importance of the role that software plays in critical systems, software verification process is required to be rigorous and reliable. It is well-known that test activities cannot detect all the defects in safety-critical real time software systems. One way of complementing the test activities is through formal verification. Two useful formal verification techniques are deductive verification and model checking, which allow programs to be statically checked for defects. This paper explores both techniques, by employing the CBMC and Jessie/Frama-C tools in the context of a safety-critical real time software system.This work is funded by ERDF - European Regional Development Fund through the COMPETE Programme (operational programme for competitiveness) and by National Funds through the FCT - Fundação para a Ciência e a Tecnologia (Portuguese Foundation for Science and Technology) within project FCOMP-01-0124-FEDER-020486

Não te posso ver nem pintado: práticas pictóricas no século XXI

Mestrado em Criação Artística ContemporâneaO presente trabalho pretende abordar a forma como a pintura reagiu ao desafio das tecnologias, da fotografia, do vídeo, do filme, da instalação e do digital, expor algumas das abordagens pictóricas contemporâneas mais relevantes e analisar o trabalho de alguns dos seus artistas mais representativos. Questiona-se o caminho tomado pela pintura contemporânea e discutem-se abordagens pictóricas que se relacionam com a fotografia, vídeo, filme, espaço, instalação e digital. Este espaço de discussão e enquadramento teórico é complementado por uma parte prática, em que se apresentam quatro projetos originais de pintura.This study addresses how the paint reacted to the challenge of technology, photography, video, film, installation and digital, expose some of the most important contemporary pictorial approaches and analyze the work of some of its most representative artists. Objections to the path taken by contemporary painting and discusses approaches that relate to pictorial photography, video, film, space, installation and digital. This space for discussion and theoretical framework is complemented by a practical part, which presents four unique designs painting