The Polytechnic Institute of Viana do Castelo is a state-run polytechnic institute of higher education in Portugal. Its five schools are located in several cities of the Viana do Castelo district in Portugal. It was established in 16 August 1980. Wikipedia.
Alves M.R.,Polytechnic Institute of Viana do Castelo
AIP Conference Proceedings | Year: 2016
Function AutoBiplot.CCA was built in R language. Given two multivariate data sets, this function carries out a conventional canonical correlation analysis, followed by the automatic production of predictive biplots based on the accuracy of readings as assessed by a mean standard predictive error and a user defined tolerance value. As the user's intervention is mainly restricted to the choice of the magnitude of the t.axis value, common misinterpretations, overestimations and adjustments between outputs and personal beliefs are avoided. © 2016 Author(s).
Agency: European Commission | Branch: FP7 | Program: CSA-SA | Phase: KBBE-2008-2-3-03 | Award Amount: 1.18M | Year: 2009
The food and drink industry is the single largest manufacturing sector in the EU and is mainly comprised by SMEs and microenterprises (99.1% of European food and drink businesses). The European food industry is in the lower part of the innovation performance ranking, and is losing relative importance in the global food market. This situation was a primary reason for the initiation of the ETP Food4 Life, which seeks to stimulate and underpin innovation in the agro-food chain. TRACK_FAST is drawn from all geographic points of Europe, and its main objective is the identification of the training and career requirements of future European food scientists and technologists (FST), and implementation of a European strategy to recruit the next generation FST leaders. TRACK_FAST will achieve this goal through: Identification and definition of personal skills requirements in food job market; Developments for the regulation of food science and technology professions in Europe; Establishment of a framework for continual professional training and career development for the FST professional; and Motivation of young people to enter and pursue of a career in food science and technology in Europe. The project will therefore coordinate a programme of information and experience gathering, discussions with employers and employees, and with those responsible for providing academic and other training deliver awareness and experience in career development activities. Moreover, young students will be motivated to pursue a career in food area, thus promoting a new generation of skilled, flexible and enthusiastic food scientists and technologists. TRACK_FST will provide main stakeholders with a forum within which their main needs will be considered. Moreover, TRACK_FAST focus on the key factors to identify needs and guide future works, as well as the development of specific and effective measures to prompt changes. The consortium and work plan are framed in a strong engagement between stakeholders, thus TRACK_FAST will contribute to a more innovative and competitive food and drink sector, which is a key area for job creation, global competition and societal benefit in Europe.
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: SFS-07a-2014 | Award Amount: 3.40M | Year: 2015
Research and development activities are proposed for the benefit of sustainable pork chains based on European local pig breeds and their production systems. Workprogramme is planned to respond to consumer demands for quality and healthiness of pork products with regional identity and societal demands for environment preservation and development of local agro-economy. Description and evaluation of local pig breeds, with an emphasis on untapped ones will be performed using novel genomic tools. Performance of local pig breeds will be evaluated in contrasted agro-geo-climatic conditions and production systems (indoor, outdoor, organic). Focus will be on pig feeding and management strategies and on the use of locally available feeding resources. Intrinsic quality of traditional and new regional high quality pork products and attitudes of consumers from various market areas will be assessed; in particular the motives for the choice and willingness to pay such products. Marketing strategies will be adressed in particular short chain distribution channels. All activities will be driven from the perspective of sustainability (environmental impact, animal welfare, product quality, consumer acceptability and market potential). The activities will engage innovative approaches to answer socio-economic demands of regional pork chains involving partners from different sectors. The ambition is to enhance existing and create new networks between academia and non-academia partners, within and between regions and to tackle the value chain for regional high quality pork products, focusing on diverse and so far untapped pig breeds, their production systems and pork products. Cross-fertilising interactions between research, local agriculture, businesses and end-users will be achieved with partners from these complementary sectors in all research and development activities.
Silva L.T.,University of Minho |
Oliveira M.,University of Minho |
Silva J.F.,Polytechnic Institute of Viana do Castelo
Applied Acoustics | Year: 2014
The present paper aims to address the problems of the urban environment as an area of interaction between urban forms and urban noise. This interaction is intended to be monitored using urban indicators, by comparing the effects of noise propagation using models of urban forms. The model of noise prediction allowed developing noise studies in facades, resulting in noise levels in a calculation grid located in the building facades. The study will allow the creation of different scenarios and anticipate as early as in the preliminary building design phase, which facades would be exposed to higher noise levels. The effects of noise in facades can then be minimized in advance, by adjusting the layout of the urban typology. © 2013 Elsevier Ltd. All rights reserved.
Abreu C.,Polytechnic Institute of Viana do Castelo |
Ricardo M.,INESC Porto |
Mendes P.M.,University of Minho
Journal of Network and Computer Applications | Year: 2014
Available wireless sensor networks targeting the domain of healthcare enables the development of new applications and services in the context of E-Health. Such networks play an important role in several scenarios of patient monitoring, particularly those where data collection is vital for diagnosis and/or research purposes. However, despite emerging solutions, wearable sensors still depend on users' acceptance. One proposed solution to improve wearability relies on the use of smaller sensing nodes, requiring more energy-efficient networks, due to smaller room available for energy sources. In such context, smaller wireless sensor network nodes are required to work long time periods without human intervention and, at the same time, to provide appropriate levels of reliability and quality of service. Satisfaction of these two goals depends on several key factors, such as the routing protocol, the network topology, and energy efficiency. This paper offers a solution to increase the network lifetime based on a new Energy-Aware Objective Function used to design a Routing Protocol for Low-Power and Lossy Networks. The proposed Objective Function uses the Expected Transmission Count Metric and the Remaining Energy on each sensor node to compute the best paths to route data packets across the network. When compared with state of the art solutions, the proposed method increases the network lifetime by 21% and reduces the peaks of energy consumption by 12%. In this way, wireless sensor network nodes wearability can be improved, making them smaller and lighter, while maintaining the required performance. © 2013 Elsevier Ltd.
Lopes V.P.,Polytechnic Institute of Bragança |
Gabbard C.,Texas A&M University |
Rodrigues L.P.,Polytechnic Institute of Viana do Castelo
Journal of Adolescent Health | Year: 2013
Purpose: The aim of this study was to determine the influence of dyadic friendship relationships on adolescent physical activity (PA) behavior. Unique to this study was examination of the "best friend" dyad. Methods: Participants were 268 adolescents (13-18 years of age) of both sexes (boys n = 140, girls n = 128), constituting 134 best friendship dyads; 84 were reciprocal best friends and 50 were not. PA was evaluated with the short version of the International Physical Activity Questionnaire. The Actor-Partner Interdependence Model was tested using a hierarchical linear model. First, a null model was run to calculate intraclass correlation coefficient for each type of PA. Next, sex, age, and reciprocity in friendship were included in the model as PA predictors. Results: The null models revealed significant intraclass correlation coefficient values for vigorous PA (VPA) (.32) moderate PA (MPA) (.31), and sitting behavior (.21), but not for walking. Age was the only predictor for VPA, whereas for MPA the predictors were sex and age of the partner. Reciprocity in friendship (best friend) was not a significant predictor for PA. Conclusions: These results indicate a high degree of similarity between best friend dyad in PA, except for walking. The age and sex of the best friend (partner) were important predictors of MPA. The reciprocity in friendship (being reciprocal best friends) was not a relevant variable. © 2013 Society for Adolescent Health and Medicine. All rights reserved.
Lopes V.P.,Polytechnic Institute of Bragança |
Stodden D.F.,Texas Tech University |
Bianchi M.M.,University of Porto |
Maia J.A.R.,University of Porto |
Rodrigues L.P.,Polytechnic Institute of Viana do Castelo
Journal of Science and Medicine in Sport | Year: 2012
Objectives: To analyze the association between motor coordination (MC) and body mass index (BMI) across childhood and early adolescence. Design: This study is cross-sectional. Methods: Data were collected in 7175 children (boys n=3616, girls n=3559), ages 6-14 years. BMI was calculated from measured height and weight [body mass (kg)/height (m 2)]. Motor coordination was evaluated using Kiphard-Schilling's body coordination test (KTK). Spearman's rank correlation was used to study the association between BMI and MC. A Kruskal-Wallis test was used to analyze the differences in MC between children of normal weight, overweight and obese children. Results: Correlations between MC and BMI were negative and varied between 0.05 and 0.49. The highest negative correlations for both boys and girls was at 11 years of age. There was a general pattern of increasing negative correlations in both genders from 6 to 11 years of age and then a decrease in correlation strengths through 14 years of age. In both boys (χ 2 (2)=324.01; p<0.001) and girls (χ 2 (2)=291.20; p<0.001) there were significant differences in MC between the three groups' weight status. Normal weight children of both sexes demonstrated significantly higher MC scores than overweight. Obese children in both sexes had the lowest MC scores among all three groups. Conclusion: Motor coordination demonstrated an inverse relationship with BMI across childhood and into early adolescence. The strength of the inverse relation increased during childhood, but decreased through early adolescence. Overweight and obese children of both sexes demonstrated significantly lower MC than normal weight children. © 2011 Sports Medicine Australia.
da Cruz A.M.R.,Polytechnic Institute of Viana do Castelo
Communications in Computer and Information Science | Year: 2015
Use case driven software development starts, in general, with abstract problem domain descriptions of how the users see themselves using the system being developed, and involves a series of iterative refinement steps that incrementally add detail to the use case model, bringing those descriptions to the solution domain. Use cases involve interactions between human actors and the system state. These interactions are held within interaction spaces, which are modeled through a user interface model. Business applications are in general data-driven, comprising a set of typical functions that the users can make on the system. When a use case driven approach is used to develop data-oriented applications those typical functions pop-up as use case patterns, and their interactions occur within a set of user interface patterns. This paper presents a set of use case patterns and the corresponding user interface patterns typically found in data-oriented business applications. For that, a user interface metamodel and corresponding concrete user interface modeling language are also proposed. © Springer International Publishing Switzerland 2015.
Barreto L.,Polytechnic Institute of Viana do Castelo
Journal of Computer Networks and Communications | Year: 2015
Congestion control in wireless networks is strongly dependent on the dynamics and instability of wireless links. Therefore, it is very difficult to accurately evaluate the characteristics of the wireless links. It is known that TCP experiences serious performance degradation problems in wireless networks. Moreover, congestion control mechanisms that rely on network interaction and network parameters, such as XCP and RCP, do not evaluate accurately the capacity and available link bandwidth in wireless networks. In this paper we propose new explicit flow control protocols for wireless mesh networks, based on XCP and RCP. We name these protocols XCP-Winf and RCP-Winf. They rely on the MAC layer information gathered by a new method to accurately estimate the available bandwidth and the path capacity over a wireless network path. The estimation is performed in real time and without the need to intrusively inject packets in the network. These new congestion control mechanisms are evaluated in different scenarios in wireless mesh and ad hoc networks and compared against several new approaches for wireless congestion control. It is shown that both XCP-Winf and RCP-Winf outperform the evaluated approaches, showing its stable behavior and better channel utilization. © 2015 Luís Barreto.
Rego P.,Polytechnic Institute of Viana do Castelo |
Moreira P.M.,Polytechnic Institute of Viana do Castelo |
Reis L.P.,University of Porto
Proceedings of the 5th Iberian Conference on Information Systems and Technologies, CISTI 2010 | Year: 2010
Serious Games are growing into a significant area spurred by the growth in the use of video games and of new methods for their development. They have important applications in several distinct areas such as: military, health, government, and education. The design of computer games can offer valuable contributions to develop effective games in the rehabilitation area. This paper presents fundamental concepts relating to Serious Games followed by a survey of relevant work and applications on Serious Games for Rehabilitation. We propose a classification designed to properly distinguish and compare Serious Games for Rehabilitation systems in what concerns their fundamental characteristics. We also describe a particular Serious Game for Rehabilitation, RehaCom, as a case study. Finally, the paper presents some challenges and research opportunities in this area.