Metop-A generator for single top production via FCNC interactions

We present a generator for single top-quark production via flavour-changing neutral currents. The MEtop event generator allows for Next-to-Leading-Order direct top production pp -> t and Leading-Order production of several other single top processes. A few packages with definite sets of dimension six operators are available. We discuss how to improve the bounds on the effective operators and how well new physics can be probed with each set of independent dimension six operators.

Herb-drug interactions among commonly used psychoactive substances by healthcare students

The concurrent use of herbs and/or nutritional supplements with psychoactive effect and prescription medications is common among college students. College students are a particularly vulnerable population, for they are under less social/familiar surveillance and seek greater independence, as well as under greater intellectual effort, stress, anxiety and depression, which predispose them to a higher consumption of psychoactive substances. Herbs, vitamins, and other dietary supplements may influence the effects of prescription and nonprescription drugs leading to adverse consequences, by increasing the potential for interactions. However, documented interactions between herbal medicinal products and prescribed drugs are rare. Objective: determine the prevalence of concomitant use of psychoactive substances among healthcare students in the Lisbon School of Health Technology, Portugal, in order to assess the risk of potential herb-drug interactions.

Interface multitoque para exploração de colecção de arte

Trabalho apresentado no âmbito do Mestrado em Engenharia Informática, como requisito parcial para obtenção do grau de Mestre em Engenharia Informática

A simple and inexprensive method to generate a microaerophilic atmosphere for the isolation of Campylobacter sp

Faeces of 138 chickens were inoculated on Blaser agar plates. One set of plates was incubated in jars with CampyPak envelopes. The others were incubated in "Zip-lock" plastic bags (7 x X in.) and a microaerophilic atmosphere was generated exhaling into the "Zip-lock" plastic bag, after holding the breath for 20 sec. Then, the bag was pressed to evacuate its atmosphere, inflated again, and pressed (4 times), and finally sealed. Campylobacter was isolated from 127 (96.2%) of samples incubated in jars with gas generator envelopes and from 129 (98%) of the specimens incubated into the bags. The proposed methodology offers good savings for cost-conscious laboratories.

Characterization of Pinus spp. needles by gas chromatography and mass spectrometry: Application to plant-insect interactions

Dissertação apresentada para obtenção do Grau de Doutor em Ciências do Ambiente pela Universidade Nova de Lisboa, Faculdade de Ciências e Tecn

Gold nanoparticle to antibody conjugates for diagnosis applications: molecular interactions and immunoassay development

Thesis for the Master degree in Structural and Functional Biochemistry

Swordfish: an Autonomous Surface Vehicle for Network Centric Operations

The design and development of the swordfish autonomous surface vehicle (ASV) system is discussed. Swordfish is an ocean capable 4.5 m long catamaran designed for network centric operations (with ocean and air going vehicles and human operators). In the basic configuration, Swordfish is both a survey vehicle and a communications node with gateways for broadband, Wi-Fi and GSM transports and underwater acoustic modems. In another configuration, Swordfish mounts a docking station for the autonomous underwater vehicle Isurus from Porto University. Swordfish has an advanced control architecture for multi-vehicle operations with mixed initiative interactions (human operators are allowed to interact with the control loops).

Recent advances into vanadyl, vanadate and decavanadate interactions with actin

Metallomics. 2012 Jan 3;4(1):16-22

Decavanadate interactions with actin: cysteine oxidation and vanadyl formation

Dalton Trans., 2009, 7985–7994

TURTLE: Systems and technologies for deep ocean long term presence

This paper describes the TURTLE project that aim to develop sub-systems with the capability of deep-sea long-term presence. Our motivation is to produce new robotic ascend and descend energy efficient technologies to be incorporated in robotic vehicles used by civil and military stakeholders for underwater operations. TURTLE contribute to the sustainable presence and operations in the sea bottom. Long term presence on sea bottom, increased awareness and operation capabilities in underwater sea and in particular on benthic deeps can only be achieved through the use of advanced technologies, leading to automation of operation, reducing operational costs and increasing efficiency of human activity.

New strategies to detect and understand genotype-by-environment interactions and QTL-by-environment interactions

Dissertação para obtenção do Grau de Doutor em Estatística e Gestão do Risco, especialidade em Estatística

Como responder à heterogeneidade dos alunos, de modo a proporcionar o sucesso de cada um?

O sucesso educativo dos alunos é como facilmente se compreenderá, a essência do ato educativo nas suas múltiplas dimensões e formas. O percurso para a obtenção desse sucesso é variado e representa muitas vezes um enorme investimento das organizações educativas nomeadamente na gestão dos seus recursos humanos. Por outro lado, o modelo organizativo instituído pode ser o fator preponderante para a obtenção do sucesso procurado sobretudo quando ele é promotor de um clima harmonioso e motivador para o ato educativo. O projeto apresentado neste estudo estruturou-se numa nova construção dos grupos de trabalho, em que o conceito tradicional de turma foi substituído por grupos, constituídos por alunos cujo grau de conhecimento e competências no âmbito das disciplinas de Português e Matemática, fosse o mais aproximado possível não perdendo de vista o princípio de heterogeneidade do grupo mesmo que relativa ou diminuída, tão importante para promover a diversidade. Este sistema organizativo rompeu com o conceito tradicional da turma o que implicou uma alteração não só na organização de horários escolares dos alunos e docentes mas também obrigou estruturação e implementação de um processo de mobilidades dos alunos entre grupos em função do seu grau de aprendizagens ou de dificuldades na sua obtenção. Este projeto foi ainda promotor de uma cultura de trabalho colaborativo e partilha entre docentes de cada grupo disciplinar promovendo a sistematização de interações entre pares quer na preparação das atividades letivas quer na discussão e resolução dos constrangimentos que o desenvolvimento do projeto evidenciou.