A análise de performance e o seu impacto no desempenho de uma equipa de futebol profissional

Atualmente, a preparação e desenvolvimento de uma equipa de futebol deve considerar não só aspetos relacionados com a metodologia do treino, como também da análise de performance, quer da própria equipa quer de equipas adversárias. O estágio desenvolveu-se integrado nas equipas técnicas que orientaram o plantel profissional do Estoril Praia SAD, durante a época 2014/2015. Na área 1, foi exposto o objetivo principal do trabalho apresentado neste relatório, que se prendeu com a necessidade de compreender de que forma é importante a análise da própria equipa e da equipa adversária, e ainda como essas análises são enquadradas e utilizadas no treino e na competição. Após a recolha de informação na literatura, relativa à análise de performance, e relacionada essa informação com a prática do dia-a-dia e ainda com as opiniões recolhidas através de entrevistas realizadas a dois elementos de uma das equipas técnicas, foi possível perceber a importância da análise na preparação e operacionalização das ideias de jogo da equipa técnica, não só durante os momentos competitivos, como em situações de treino. Na área 2 (Projeto de investigação/inovação) foi realizado um estudo que teve como finalidade perceber o impacto que tem a alteração de um treinador no decorrer da época desportiva, tentando relacionar essas decisões com diferentes contextos, percebendo se a alteração tem uma influência positiva ou negativa no rendimento das equipas contempladas no estudo. Posteriormente à sua realização, o estudo foi apresentado nas Jornadas Portuguesas de Psicologia do Desporto. Relativamente à área 3 (Relação com a comunidade), foi realizado um torneio que teve como principal foco, alertar os pais dos atletas para os valores positivos que podem ser promovidos e desenvolvidos através do desporto.

Construction of effective disposable biosensors for point of care testing of nitrite

© 2015. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/

Enriquecimento semântico de modelos ecológicos baseados em raciocínio qualitativo : um estudo de caso sobre a dinâmica de comunidades de vegetação lenhosa no cerrado brasileiro

Tese (doutorado)—Universidade de Brasília, Instituto de Ciências Biológicas, Programa de Pós-Graduação em Ecologia, 2015.

Controle aplicado a poços com método de elevação e bombeio centrífugo submerso

The Electrical Submersible Pumping is an artificial lift method for oil wells employed in onshore and offshore areas. The economic revenue of the petroleum production in a well depends on the oil flow and the availability of lifting equipment. The fewer the failures, the lower the revenue shortfall and costs to repair it. The frequency with which failures occur depends on the operating conditions to which the pumps are submitted. In high-productivity offshore wells monitoring is done by operators with engineering support 24h/day, which is not economically viable for the land areas. In this context, the automation of onshore wells has clear economic advantages. This work proposes a system capable of automatically control the operation of electrical submersible pumps, installed in oil wells, by an adjustment at the electric motor rotation based on signals provided by sensors installed on the surface and subsurface, keeping the pump operating within the recommended range, closest to the well s potential. Techniques are developed to estimate unmeasured variables, enabling the automation of wells that do not have all the required sensors. The automatic adjustment, according to an algorithm that runs on a programmable logic controller maintains the flow and submergence within acceptable parameters avoiding undesirable operating conditions, as the gas interference and high engine temperature, without need to resort to stopping the engine, which would reduce the its useful life. The control strategy described, based on modeling of physical phenomena and operational experience reported in literature, is materialized in terms of a fuzzy controller based on rules, and all generated information can be accompanied by a supervisory system

Microstructured polymer optical fibre sensors for opto-acoustic endoscopy

Opto-acoustic imaging is a growing field of research in recent years, providing functional imaging of physiological biomarkers, such as the oxygenation of haemoglobin. Piezo electric transducers are the industry standard detector for ultrasonics, but their limited bandwidth, susceptibility to electromagnetic interference and their inversely proportional sensitivity to size all affect the detector performance. Sensors based on polymer optical fibres (POF) are immune to electromagnetic interference, have lower acoustic impedance and a reduced Young's Modulus compared to silica fibres. Furthermore, POF enables the possibility of a wideband sensor and a size appropriate to endoscopy. Micro-structured POF (mPOF) used in an interferometric detector has been shown to be an order of magnitude more sensitive than silica fibre at 1 MHz and 3 times more sensitive at 10 MHz. We present the first opto-acoustic measurements obtained using a 4.7mm PMMA mPOF Bragg grating with a fibre diameter of 130 μm and present the lateral directivity pattern of a PMMA mPOF FBG ultrasound sensor over a frequency range of 1-50 MHz. We discuss the impact of the pattern with respect to the targeted application and draw conclusions on how to mitigate the problems encountered.

Superior color rendering with a phosphor-converted blue-cyan monolithic light-emitting diode

The future generation of modern illumination should not only be cheap and highly efficient, but also demonstrate high quality of light, light which allows better color differentiation and fidelity. Here we are presenting a novel approach to create a white solid-state light source providing ultimate color rendition necessary for a number of applications. The proposed semi-hybrid device combines a monolithic blue-cyan light emitting diode (MBC LED) with a green-red phosphor mixture. It has shown a superior color rendering index (CRI), 98.6, at correlated color temperature of around 3400 K. The MBC LED epi-structure did not suffer from the efficiency reduction typical for monolithic multi-color emitters and was implemented in the two most popular chip designs: “epi-up” and “flip-chip”. Redistribution of the blue and cyan band amplitudes in the white-light emission spectrum, using the operating current, is found to be an effective tool for fine tuning the color characteristics. (Figure presented.).

Höjdbestämningsmetoder vid upprättande av nybyggnadskartor : Jämförelse mellan nätverks-RTK och trigonometrisk höjdmätning

Levelling and trigonometric height measurements are the methods that are mostly used today for height determination, as the standard error with these methods is in the magnitude of millimeters, as long as the view length is less than 50 m. When creating a new construction map the requirement on standard error differ from 1 (Fredriksson, 2011) to 10 cm (www.arvidsjaur.se) depending on which municipality it concerns. When using network RTK for measuring, the accuracy in height can fall below 3 cm when the conditions are optimal. The purpose of this paper is to investigate if network RTK can be used as an alternative to determinate height when accuracy under 10 cm is requested. Five points at locations with different conditions for accuracy got their height determined with the three methods mentioned above. Positional accuracy was formed for each point and method. The result from levelling was used as reference for the calculations. To compare the result with the requirements extended standard uncertainty, 2covering 95 %, was used. The result from trigonometric height measurement shows a position accuracy of 4 mm. From the network RTK, the points that were positioned without interference got a positional accuracy of 3.3 to 5.5 cm, while the points that were influenced by their environment, multipath interference and obstructions, got a positional accuracy of 123.3 cm and 234.4 cm. Positional accuracy of this method became 127.4 cm. The result from the height determination with network RTK shows big difference in accuracy for the different points. The conclusion is that network RTK measurement would not be a sufficiently accurate height determination method for preparation of a new construction map in an area similar to the one used for this test. Conversely, a construction map drawn up in an open area free from interference obstacles the results show that the network RTK is an approved method for determining height, depending on the requirements of the municipality.

Développement d’outils moléculaires pour la tomographie d’émission par positrons

Résumé : L’imagerie TEP est une modalité puissante qui permet de suivre d’infimes concentrations de traceurs marqués pour la détection de cancers et d’autres pathologies. Il y a actuellement un intérêt croissant pour le développement de peptides comme outils diagnostiques et de traitement en oncologie. Cet intérêt se justifie entre autres par le fait que les peptides sont tolérants à la présence de chélateurs bifonctionnels ou de groupements prosthétiques pour le marquage avec divers radiométaux (64Cu, T1/2 = 12,7 h, 68Ga, T1/2 = 68 min, etc.) ou le 18F (T1/2 = 109,8 min) sans perte de leur activité biologique. L’objectif des travaux rapportés dans ce document était de développer des outils moléculaires innovateurs et efficaces qui facilitent le marquage de peptides pour l’imagerie TEP. Il s’agit spécifiquement d’un chélateur bifonctionnel et d’une méthode de conjugaison rapide et sélective de groupe prosthétique. Sur un volet, un chélateur bifonctionnel analogue de la lysine avec des ligands méthylhydroxamates a été synthétisé en solution par double bisalkylation. Les résultats préliminaires indiquent une faible chélation avec le Cu(II), mais sont à poursuivre avec les 68Ga et 89Zr. Pour le second volet de radiomarquage au 18F, les procédures synthétiques ont été optimisées en deux étapes, soient le marquage du groupe prothétique et sa conjugaison au peptide. Tout d’abord, des conditions de marquage par une réaction de SNAr en présence de 18F- ont été développées pour donner le groupe prosthétique 18F-thioester nécessaire à la conjugaison. Par la suite, sa conjugaison au peptide par la réaction de ligation chémosélective, ce qui implique trois étapes 1) une transthioestérification favorisée entre les groupements thioester et thiol des segments de peptides; 2) un réarrangement irréversible de l’intermédiaire thioester en N-(oxyalkyl)amide, suivi; 3) du clivage de l’auxiliaire. Par les présents travaux, il a été prouvé que la nouvelle méthodologie en un seul pot réactionnel accélère la réaction et permet le marquage au 18F de peptides non protégés, limitant ainsi les réactions secondaires et le nombre d’étapes après le marquage des peptides. La conjugaison du groupe prothétique à un composé et un peptide modèle se produit en 26-55 min comparativement aux 48 h des conditions originales rapportées. La méthode proposée permet également le marquage de peptides non protégés. Dans le futur, le chélateur bifonctionnel et le groupe prothétique seront conjugués à différents dérivés peptidiques ciblant des récepteurs impliqués dans le cancer et des tests de compétition, de saturation, de biodistribution et d’imagerie µTEP seront effectués.

El efecto de la definición regulatoria de banda ancha sobre la difusión y la competencia del mercado de servicios de Internet fijo en Colombia

A partir de la dinámica evolutiva de la economía de las Tecnologías de la Información y las Comunicaciones y el establecimiento de estándares mínimos de velocidad en distintos contextos regulatorios a nivel mundial, en particular en Colombia, en el presente artículo se presentan diversas aproximaciones empíricas para evaluar los efectos reales que conlleva el establecimiento de definiciones de servicios de banda ancha en el mercado de Internet fijo. Con base en los datos disponibles para Colombia sobre los planes de servicios de Internet fijo ofrecidos durante el periodo 2006-2012, se estima para los segmentos residencial y corporativo el proceso de difusión logístico modificado y el modelo de interacción estratégica para identificar los impactos generados sobre la masificación del servicio a nivel municipal y sobre las decisiones estratégicas que adoptan los operadores, respectivamente. Respecto a los resultados, se encuentra, por una parte, que las dos medidas regulatorias establecidas en Colombia en 2008 y 2010 presentan efectos significativos y positivos sobre el desplazamiento y el crecimiento de los procesos de difusión a nivel municipal. Por otra parte, se observa sustituibilidad estratégica en las decisiones de oferta de velocidad de descarga por parte de los operadores corporativos mientras que, a partir del análisis de distanciamiento de la velocidad ofrecida respecto al estándar mínimo de banda ancha, se demuestra que los proveedores de servicios residenciales tienden a agrupar sus decisiones de velocidad alrededor de los niveles establecidos por regulación.

Detalgraf S.A.: Plan Estratégico Empresarial

DETALGRAF S.A., es una empresa colombiana con Capital Nacional, fundada en febrero de 1993. A través del tiempo la empresa se ha venido transformando y sus líneas comerciales se han ampliado significativamente, pasando de ofrecer a sus clientes insumos para la industria gráfica a productos de aseo, papelería, químicos, cafetería, medicamentos y seguridad industrial. Actualmente, se posiciona como una de las mejores empresas comercializadoras en el sector institucional. Este proyecto busca desarrollar un plan estratégico para la empresa Detalgraf S.A., para los próximos cinco años, basándose en la elaboración de estrategias claves, producto de un análisis previo de los problemas que afectan la empresa y su desarrollo; esperando como resultado la solución a diferentes falencias en los departamentos de logística, comercial y finanzas. Teniendo en cuenta lo anteriormente mencionado, se presenta este proyecto como una alternativa de mejora fundamentada en una pregunta investigativa principal la cuales es ¿Cómo garantizar el crecimiento y la sostenibilidad de la empresa Detalgraf S.A., por medio de un plan estratégico que ayude a lograr la perdurabilidad de la compañía? Con el fin de dar respuesta a ésta, se desprenden otros interrogantes igual de importantes como: ¿Es posible por medio de un plan estratégico mejorar el proceso de cobro y seguimiento de cartera?, con base a estas mejoras, ¿Se logrará tener la capacidad de identificar los principales problemas internos y externos que afectan a la empresa y a su entorno? Y finalmente, ¿Se pueden incrementar las ventas penetrando nuevos mercados? El desarrollo de estas preguntas permitirá buscar una mejora en la comunicación interna dentro de la empresa, con el fin de obtener una mayor coordinación en el uso de los recursos y el funcionamiento de la organización para garantizar la creación de valor, un factor clave para la empresa.

Engagement e interferência trabalho-família em cônjuges trabalhadores e não trabalhadores na mesma organização

Baseada na literatura sobre a interferência trabalho-família e o engagement, esta investigação estudou diferenças nestas variáveis em indivíduos com cônjuge trabalhador na mesma organização vs. cônjuge não trabalhador na mesma organização. Foram aplicados dois questionários a uma amostra de 91 participantes, que permitiram concluir que o primeiro grupo apresenta níveis superiores em todas as dimensões de ambas as variáveis, sobretudo na dedicação. Foram ainda estudadas diferenças em variáveis sócio-demográficas, assim como foi demonstrado a correlação significativa entre as dimensões do engagement, e entre o vigor e a interferência trabalho­família negativa. São discutidas implicações teóricas e práticas, assim como limitações do estudo e direcções futuras. /ABSTRACT: Based on the literature about work-home interference and engagement, this investigation studied differences on those variables in individuals with their spouses working on the same organization vs. spouses don't working on the same organization. Two questionnaires were applied to a 91 sample, that allowed us to conclude that the first group presents higher levels in every dimension of both variables, especially on dedication. Differences in socio-demographics variables were also studied, and it was demonstrated significant correlation between engagement dimensions, and between vigour and negative work-home interference. Theoretical and practical implications are discussed, as well study limitations and future directions.

Trans-national cooperation: an asset in the Portuguese overseas trade. Foreigners operating in the Portuguese overseas trade, 1580-1590

This paper aims to discuss the role of foreign merchants, operating from Portugal, in the Portuguese overseas trade, during the first ten years of Iberian Union. The focus is not in products or routes, but in the mechanisms of association of such merchants. Iberian Union created a legal framework which prohibited the interference and trade of Portuguese agents in the Spanish Empire and vice-versa. Due to the imperialist wars of the Habsburgs, the Portuguese Empire also suffered from Dutch and English rivalry both in the Indic and in the Atlantic and also from the embargos of Dutch and English products and ships in Iberian ports. In such conjuncture, how did merchants related with each other? What was the impact of the political union of the Portuguese and Spanish crowns in trading associations? The used data sources are the notarial contracts of Lisbon for the same period. The paper highlights the role of Castilian merchants in the Portuguese trade, but it also stresses that Iberian partnerships have prevailed before 1580. The role of other merchants, such as Flemish/Dutch, Germans, Italians and French, is also considered. The paper discusses how and why did these merchants join in trans-national partnerships and what was their role in the Portuguese trade network at the time.

Sinthesys of heteroleptic zinc complexes for imaging in living cells

This thesis arose from an interest in luminescence heteroleptic bis(dipyrrinato) Zn (II) complexes and their application in cell imaging, due to their attractive and fascinating characteristics. Among imaging technologies, near-infrared fluorescence imaging has been dedicated immense attention owing to its low absorption and autofluorescence from surrounding organism and tissues in this specific spectral region, which minimize background interference and improve tissue depth penetration. An ideal near-infrared probe should be equipped with excellence chemical and photophysical properties. The target of this work is the synthesis of new heteroleptic bis(dipyrrinato) Zn (II) complexes having two main features: the emission in the near-infrared region and water-solubility. In order to purse these intentions, the low-energy emission was achieved by expansion of π-conjugation of simple dipyrrins using Knoevenagel condensation106 and tri(ethylene)glycol chain was introduced to increase the water solubility of the final complex. Photophysical and luminescent properties of the new complexes were investigated. Finally, with a view to a potential biological use of these new complexes in biological environments, their biocompatibility was tested using a cell viability assay: (3-(4,5-dimethylthiazol-2-yl)-2’-5’-diphenyltetrazolium bromide (MTT) assay.

Consecuencias negociales de las prácticas desleales contra los consumidores: relaciones entre el Derecho de contratos y el Derecho de la competencia desleal

En los últimos tiempos hemos asistido a diversas situaciones en las que la contratación de productos y servicios por los consumidores se encuentra fuertemente influenciada por distintas actuaciones empresariales que pueden calificarse como prácticas desleales por engañosas o agresivas. Esta realidad pone de manifiesto la intensa interrelación que existe entre contrato y mercado, y consecuentemente la necesidad de articular puentes de conexión entre el Derecho contratos y de la competencia desleal. Este trabajo aborda las conexiones entre estos sectores normativos con el fin de analizar las posibles soluciones a los problemas derivados de la contratación de consumo afectada por prácticas desleales. Tras una breve introducción donde se da debida cuenta del propósito y justificación de la investigación, el trabajo inicia con la exposición de la tradicional situación de desconexión entre las disciplinas contractual y concurrencial. Posteriormente, se analizan las conexiones intersectoriales en los planos axiológico y funcional, así como los distintos materiales normativos de los que se infieren esas aun incipientes conexiones. Sobre la base de lo anterior, se examinan las medidas correctoras individuales que el Derecho de la competencia desleal pone a disposición de los consumidores para hacer frente a las prácticas desleales, las propuestas de lege ferenda proporcionadas por la doctrina patria para remover los efectos contractuales de estas prácticas, así como las diversas soluciones ofrecidas por distintos Estados miembros de la UE. A continuación, se analizan los nuevos materiales normativos provenientes de la UE que ahondan en el proceso de permeabilización entre el Derecho de contratos y de la competencia desleal, así como las iniciativas legislativas tendentes a su incorporación a nuestro ordenamiento. El trabajo concluye con un conjunto de conclusiones reasuntivas entresacadas del estudio realizado, que se clausuran con la propuesta de algunas directrices para lo que entendemos sería una correcta incorporación de la normativa comunitaria.

Characterization of a 3D-printed low-cost flexible dielectric material for the realization of innovative WPT wearable applications

The aim of this thesis is to demonstrate that 3D-printing technologies can be considered significantly attractive in the production of microwave devices and in the antenna design, with the intention of making them lightweight, cheaper, and easily integrable for the production of wireless, battery-free, and wearable devices for vital signals monitoring. In this work, a new 3D-printable, low-cost resin material, the Flexible80A, is proposed as RF substrate in the implementation of a rectifying antenna (rectenna) operating at 2.45 GHz for wireless power transfer. A careful and accurate electromagnetic characterization of the abovementioned material, revealing it to be a very lossy substrate, has paved the way for the investigation of innovative transmission line and antenna layouts, as well as etching techniques, possible thanks to the design freedom enabled by 3D-printing technologies with the aim of improving the wave propagation performance within lossy materials. This analysis is crucial in the design process of a patch antenna, meant to be successively connected to the rectifier. In fact, many different patch antenna layouts are explored varying the antenna dimensions, the substrate etchings shape and position, the feeding line technology, and the operating frequency. Before dealing with the rectification stage of the rectenna design, the hot and long-discussed topic of the equivalent receiving antenna circuit representation is addressed, providing an overview of the interpretation of different authors about the issue, and the position that has been adopted in this thesis. Furthermore, two rectenna designs are proposed and simulated with the aim of minimizing the dielectric losses. Finally, a prototype of a rectenna with the antenna conjugate matched to the rectifier, operating at 2.45 GHz, has been fabricated with adhesive copper on a substrate sample of Flexible80A and measured, in order to validate the simulated results.