474 research outputs found
Caffeine: Mobile kiosk for coffee and coffee derivatives
Coffee culture is ingrained in the roots of people, culture and history of Portugal. Considered one of the most traded and consumed products on every continent, coffee is embedded in the routine of Portuguese being considered as a social act, typically carried out outside home.
But the landscape of coffee retail in Portugal is changing. The new ways of life, the modernization of the Portuguese society and the increase in tourism mark a new social dynamic. With this, also HORECA evolves, creating stores with new formats which respond to different needs and desires.
Furthermore, the handcrafted process of serving coffee and the experience associated with it has been growing as a trend, what provides a great challenge for brands.
The project below studies the proposal of launching a mobile kiosk in particularly busy areas within the city of Lisbon that will offer consumers coffee and coffee derivatives in a "take-away" style.
Overall, this paper presents an analysis to the coffee landscape in the country that sets the basis for the development of a new concept, brand and business that focus on simplifying consumer’s lives by offering a good product and service, in a potentially growing green economy.
This project is part of the Masters in Marketing and conveys the creation of a Business Plan. This plan should serve as a guide to the implementation of this venture.A cultura do café está enraizada nas pessoas, na cultura e na história de Portugal. Considerado um dos produtos mais comercializados e consumidos em todos os continentes, o café está inserido na rotina dos portugueses, sendo considerado como um ato/evento/atividade/ritual social, tipicamente realizado fora de casa.
Mas o panorama do mercado de retalho de café em Portugal está a mudar. As novas formas de vida, a modernização da sociedade portuguesa e o aumento do turismo marcam uma nova dinâmica social. Com isto, também o HORECA evolui, criando lojas com novos formatos que respondem a diferentes necessidades e expectativas desejos dos consumidores. Além disso, o processo artesanal de servir café e a experiência que lhe está associada tem vindo a crescer enquanto tendência, o que representa um desafio para as marcas.
O projeto abaixo estuda a proposta de lançamento de um quiosque móvel em zonas particularmente movimentadas da cidade de Lisboa que irá oferecer aos consumidores café e respetivos derivados em estilo "take-away".
Assim, este plano apresenta uma análise ao panorama do mercado do café que estabelece as bases para o desenvolvimento de um novo conceito, marca e negócio que visa simplificar a vida do consumidor, oferecendo um produto e serviço de elevada qualidade, aliada ao desenvolvimento de uma economia verde, em crescente.
Este projeto faz parte do Mestrado em Marketing e configura a criação de um Plano de Negócios, que deverá servir como base para a implementação deste projeto
Data for the modelling of the future power system with a high share of variable renewable energy
Energy and power system models have become necessary tools that provide challenges and technical and economic solutions for integrating high shares of Variable Renewable Energy. Models are focused on analysing strategies of power systems to achieve their decarbonisation targets. The data presented in this paper includes the model algorithm, inputs, equations, modelling assumptions, supplementary materials, and results of the simulations supporting the research article titled “Facing the high share of variable renewable energy in the power system: flexibility and stability requirements”. The analysis is based on data from the system operator of one of the European Union member states (Spain). The developed model allows making projections and calculations to obtain the power generation of each technology, the international interconnections, inertia, emissions, system costs and flexibility requirements of new technologies. These data can be used for energy policy development or decision making on power capacity and the balancing needs of the future power system.Ministerio de Ciencia e Innovación PID2020-114725RA-I00Universidad de Sevilla VI PPIT-USPlan nacional I+D+I CTM2016-78089-RJunta de Andalucía P18-RT-451
Efficient methodology for 3D statistical reconstruction of high resolution coplanar PET/CT scanner
Proceeding of: 2008 IEEE Nuclear Science Symposium Conference Record (NSS '08), Dresden, Germany, 19-25 Oct. 2008A fully 3D statistical image reconstruction
algorithm has been developed for a high-resolution coplanar PETtCT scanner based on rotating planar PET detectors. The
system matrix has been modeled with custom Monte Carlo techniques optimized for the specific scanner architecture. The system model includes positron range, non-colinearity of gamma rays and crystal interaction modelling with attenuation and
Compton scattering effects. Only 0.21 % of the system matrix columns are modeled in detail, obtaining the rest of the values
with axial and transaxial voxel-driven symmetries. The iterative algorithm is a fully 3D approach, regularized with the anatomical registered image using a novel version of the minimum cross entropy (MXE) scheme, and accelerated employing ordered
subsets. The proposed method has been shown to produce images with superior quality than 3D hybrid (FORE+2D-OSEM) algorithms applied on synthetic GATE data, as well as on real
small animal acquisitionsThis work has been partly funded by the CDTEAM project and CENIT programme (Spanish Ministry of Industry), EMIL (ED Network of Excellence), CIBER CB07/09/0031 and
RETIC-RECAVA (Spanish Ministry of Health) and TEC2007-64731/TCM(Spanish Ministry of Education and Science
Digital timing in positron emission tomography
Proceeding of: 2006 IEEE Nuclear Science Symposium Conference Record, San Diego, CA, Oct. 29 - Nov. 1, 2006Positron emission tomography (PET) requires
accurate timing of events in order to properly discriminate between coincident and non-coincident events. The traditional
solution to timing is based on custom ASIC designs, whose cost may not be justified in the design of an experimental small animal PET scanner. The new generation of PET scanners introduces the idea of continuous sampling of the detected scintillation pulse, in substitution of the event triggered acquisition systems. This approach enables new options to timing based on digital processing of the sampled pulse signal. This work proposes a time stamping algorithm based on the optically matched filter and compares the potential performance benefits of this approach versus other FIR filter designs, some of which have been already implemented by different authors. Results show that time
resolution of the timestamp may be as 1 ns without the need of expensive high-speed converters when the proper processing is applied.This work has been partially funded by the Spanish Ministry of Culture and Science through the FPU grant program as well as projects TEC2004-07052-C02-02 and PI052204.
Modeling the acquisition front-end in high resolution gamma-ray imaging
Proceeding of: 2004 IEEE Nuclear Science Symposium Conference Record, Rome, Italy, 16-22 October 2004The availability of synthetic realistic data enables design optimization, algorithm evaluation and verification of any digital system where a significant amount of digital signal processing is performed. The evolution of positron emission tomography cameras towards continuous sampling of individual position-sensitive photomultiplier anodes with processing algorithms implemented on digital programmable logic devices creates a new framework where new approaches to the γ-event detection are possible. We have developed a system model of the acquisition chain, including multi-layer phoswich, photomultiplier, front-end analog electronics, data acquisition and data processing. This processing includes estimation algorithms for the most relevant event parameters: energy, layerof- interaction, time picking-off and event location. The selected simulation platform couples gently to digital hardware simulation tools, in such a way that implemented models may generate reallike stimuli for the digital system under development. The modeling of the whole front-end electronics enables deeper understanding and tuning of different system trade-offs and provides a rapid and soft transition between specification and hardware development
Ántrax cutáneo en Lima, Perú: análisis retrospectivo de 71 casos, incluyendo cuatro con complicación meningoencefálica
Anthrax is a zoonosis produced by Bacillus anthracis, and as an human infection is endemic in several areas in the world, including Peru. More than 95% of the reported naturally acquired infections are cutaneous, and approximately 5% of them can progress to meningoencephalitis. In this study we review the clinical and epidemiological characteristics of the patients with diagnosis of cutaneous anthrax evaluated between 1969 and 2002 at the Hospital Nacional Cayetano Heredia (HNCH) and the Instituto de Medicina Tropical Alexander von Humboldt in Lima, Peru. Seventy one patients were included [49/71 (69%) of them men], with a mean age of 37 years. The diagnoses were classified as definitive (44%) or probable (56%). The most common occupation of the patients was agriculture (39%). The source of infection was found in 63 (88.7%) patients. All the patients had ulcerative lesions, with a central necrosis. Most of the patients (65%) had several lesions, mainly located in the upper limbs (80%). Four patients (5.6%) developed meningoencephalitis, and three of them eventually died. In conclusion, considering its clinical and epidemiological characteristics, cutaneous anthrax must be included in the differential diagnosis of skin ulcers. A patient with clinical suspicion of the disease should receive effective treatment soon, in order to avoid neurological complications which carry a high fatality rate.El ántrax es una zoonosis producida por el Bacillus anthracis y la infección humana es endémica en diversas partes del mundo, incluyendo el Perú. Más del 95% de las infecciones adquiridas naturalmente son cutáneas y aproximadamente 5% de ellas pueden evolucionar para meningoencefalitis. En este estudio revisamos las características clínicas y epidemiológicas de los pacientes con diagnóstico de ántrax cutáneo evaluados entre 1969 y 2002 en el Hospital Nacional Cayetano Heredia (HNCH) y en el Instituto de Medicina Tropical Alexander von Humboldt, en Lima, Perú. Se incluyeron 71 pacientes [49/71 (69%) del sexo masculino], con edad media de 37 años. Los diagnósticos fueron clasificados como definitivos (44%) o probables (56%). La ocupación más frecuente fue la agricultura (39%). La fuente de infección fue identificada en 63 (88.7%) pacientes. Todos presentaron lesiones ulcerativas con necrosis central. La mayoría de ellos (65%) tuvieron lesiones múltiples, principalmente localizadas en miembros superiores (80%). Cuatro pacientes (5.6%) desarrollaron meningoencefalitis y tres de ellos fallecieron. En conclusión, considerando sus particulares características clínicas y epidemiológicas, el ántrax cutáneo debe ser siempre incluido en el diagnóstico diferencial de las lesiones cutáneas ulcerativas. Los pacientes con sospecha clínica de la enfermedad deben recibir tratamiento precoz con el objetivo de evitar complicaciones neurológicas, las cuales presentan elevados índices de fatalidad
The Canary Deep Poleward Undercurrent
Poleward undercurrents are well known features in Eastern Boundary systems. In the California Current Eastern Boundary upwelling system (CalCEBS) the California poleward undercurrent has been widely reported, and it has been demonstrated that it transports nutrients from the equator waters to the northern limit of the subtropical gyre. However, in the Canary Current Eastern Boundary upwelling system (CanCEBS), the Canary deep poleward undercurrent (CdPU) has not been properly characterized. In this study, we use trajectories of Argo floats and model simulations to properly characterize the CdPU, including its seasonal variability, and the driving mechanism. The Argo observations show that the CdPU flows from 20oN, near cape Blanc, to, approximately, 45oN, near cape Finisterre in the northwest Spanish’s coast. The CdPU flows deeper than the CalUC, and its mean depth varies with latitude, from the surface at 20oN to 900 m at 44oN. The CdPU shows a marked seasonal variability, with it maximum strength in fall, and the minimum in spring
Multipurpose Monte Carlo simulator for photon transport in turbid media
Proceeding of: 2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC), Orlando, Florida, 25-31 October 2009Monte Carlo methods provide a flexible and rigorous solution to the problem of light transport in turbid media, which enable approaching complex geometries for a closed analytical solution is not feasible. The simulator implements local rules of
propagation in the form of probability density functions that depend on the local optical properties of the tissue.
This work presents a flexible simulator that can be applied in multiple applications related to optical tomography. In particular,
unlike previous codes, the simulator explicitly supports fluorescent-tissues and variance reduction and code parallelization techniques are implemented in order to speed up the execution with fluorochrome-labelled agents.
The simulator is validated with simple geometries for which an analytical solution exists, as well as with an experimental
polyester resin based optical phantom.This work was supported in part by the Ministry of Science and Innovation under projects TEC2008-06715 and TEC2007-64731/TCM and by the EU’s 7th Frame Programme under
contract HEALTH-F5-2008-20179
Recent Trends in SST, Chl-a, Productivity and Wind Stress in Upwelling and Open Ocean Areas in the Upper Eastern North Atlantic Subtropical Gyre
The global upper ocean has been warming during the last decades accompanied with a chlorophyll-a (Chl-a) and productivity decrease. Whereas subtropical gyres show similar trends, Eastern Boundary Upwelling Systems are thought to increase in productivity due to increased trade winds. This study analyzes recent trends in sea surface temperature (SST), Chl-a, net primary production (NPP) and meridional wind stress in the Eastern North Atlantic subtropical gyre (NASE) in order to examine if the global trends can be detected in open ocean and upwelling areas and how the ocean biota responds. Satellite data of such variables of the last 15–40 years were analyzed to calculate mean trends in upwelling areas in the Canary upwelling system and open ocean areas around the Azores, Madeira and the Canary Islands. Our results show significant warming in the area with a maximum of 2.7°C per century for the Azores. Moreover, a general decreasing trend for Chl-a and NPP seems to be more evident in the permanent upwelling areas, which will be responsible for a loss of 0.13% of the global NPP per century. Our results also highlight a significant expansion of the oceanic desert area of 10% with an increase in unproductive days of up to 84 days in the last 20 years. The competitive relationship of stratification and wind stress in the Canary upwelling system might be a more plausible explanation for the decrease in Chl-a and NPP in upwelling areas linked to the increase in upwelling favorable wind stress and the surface warming.En prens
Estudo de Bambuí sobre saúde e envelhecimento: metodologia e resultados preliminares de coorte de estudo de idosos no Brasil
OBJECTIVE: A cohort study has been designed to identify predictors of adverse health events in the elderly. The methodology of the study and preliminary descriptive results are presented. METHODS: The study population comprises all residents of Bambuí (Minas Gerais, Brazil), aged 60 or more years (n=1.742). From these, 92.2% were interviewed and 85.9% underwent clinical examination, consisting of haematological and biochemical tests, serology for Trypanosoma cruzi, anthropometric and blood pressure measures and electrocardiogram. Aliquots of serum, plasma and DNA were stored for future investigations. The baseline interview included sociodemographic characteristics, self-referred health condition and history of selected diseases, medication use, health service use, source of medical care, physical activities, smoking, drinking and eating habits, reproductive history, physical functioning, life events, social support and mental health. Individuals are being followed up annually. RESULTS: The following characteristics predominated among participants: women (60,0%), married (48.9%) or widowed (35.4%), people living in households with up to 2 residents (73.8%), heads of family (76.7%), people with monthly income between 1.00 and 2.99 Brazilian minimum wages (62.0%) and people with up to 4 years of schooling (89.1%). The median age was 68 years. Among the cohort members, only 1.7% were lost in the first follow-up. CONCLUSIONS: In general, the characteristics of the study population were very similar to those from other epidemiological studies of the elderly based on large Brazilian cities. The small number of losses to follow-up indicates that the choice of Bambuí was adequate, assuring the feasibility of a long term cohort study.OBJETIVO: Um estudo de coorte está sendo desenvolvido para identificar fatores preditores de eventos adversos à saúde em idosos. São apresentados a metodologia do estudo e os resultados descritivos preliminares. MÉTODOS: A população estudada é constituída por todos os residentes na cidade de Bambuí, Minas Gerais, com 60 ou mais anos de idade (n=1.742). Destes, 92,2% foram entrevistados e 85,9% foram submetidos a exames hematológicos e bioquímicos, sorologia para Trypanosoma cruzi , medidas antropométricas e de pressão arterial e eletrocardiograma. Alíquotas de soro, plasma e DNA foram estocadas para futuras investigações. A entrevista da linha de base do estudo incluiu: características sociodemográficas, percepção da saúde e morbidade auto-referida, uso de medicamentos, acesso a serviços de saúde e a planos de saúde, atividades físicas, uso de fumo e de álcool, hábitos alimentares, história reprodutiva, função física, eventos da vida, recursos sociais e saúde mental. Os participantes estão sendo acompanhados anualmente. RESULTADOS: As seguintes características predominaram entre os participantes: mulheres (60%), casados (48,9%) ou viúvos (35,4%), residentes em domicílios com até 2 pessoas (73,8%), chefes de família (76,7%), pessoas com renda mensal entre 1 e 2,99 salários-mínimos (62%) e pessoas com 4 ou menos anos de escolaridade (89,1%). A mediana da idade foi igual a 68 anos. Somente 1,7% dos membros da coorte foram perdidos no primeiro acompanhamento. CONCLUSÕES: Em geral, as características da população estudada foram muito semelhantes às de participantes de outros estudos epidemiológicos sobre envelhecimento, desenvolvidos em grandes cidades brasileiras. A pequena perda para acompanhamento mostra que a escolha de Bambuí foi adequada, garantindo a viabilidade de um estudo prospectivo de longa duração
- …