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Assessing the potential for tourism development : northern Portugal as a surf destination
No full textIncreasing awareness of the relevance of natural resources for the practice of outdoor leisure and
recreation purposes has contributed to the increasing attention upon the assessment and monitoring of the quality of sports spots. As such, evaluating the existing natural conditions and leisure-related
infrastructures is crucial, helping public and private stakeholders in decision-making processes.
This chapter aims at examining the conditions for surf tourism in the north of Portugal, enabling the
monitoring and positioning as an international flagship destination for surf practitioners. This is done through a mixed-methods approach comprising the demand and supply perspectives and supported by
an assessment tool developed to evaluate the conditions for the practice of surfing activities within a
framework of sustainable tourism development. The relevance of assessing the potential and monitoring
of the existing conditions for sport and outdoor activities, namely surf tourism, according to a defined
set of attributes, is also discussed.8014-1B5A-933A | Goretti SilvaN/
Efeito da fertilização orgânica no modo de promução biológico das espécies Calendula Officinalis L. e Centauea Cyanus L.
Get PDFDissertação de Mestrado em Enfermagem Agricultura Biológica apresentada na Escola Superior Agrária de Ponte de LimaExistem inúmeros resíduos orgânicos resultantes da atividade de produção
agrícola e o aproveitamento ou depósito destes resíduos é gerido frequentemente de
forma ineficaz pelas explorações agrícolas, podendo ser uma ameaça para o meio
ambiente e para a saúde humana. Portugal tem que desenvolver uma economiacircular
e sustentável, sendo possível as explorações agrícolas em modo de produção biológico
(MPB) contribuírem para a sustentabilidade através de um reaproveitamento dos
resíduos orgânicos gerados pela atividade, através dacompostagem, gerando o seu
próprio fertilizante orgânico para aplicação nas suas culturas.
Este estudo teve como objetivo avaliar o efeito da aplicação de diferentes
fertilizantes orgânicos nas culturas de calêndula (Calendula officinalis L.) e centáurea
(Centaurea cyanus L.), no MPB. A experiência incluiu a utilização de um substrato
comercial (7 t ha-1
) e um compostado de resíduos hortofrutícolas (nas doses de
aplicação de 10 t ha-1
e 20 t ha-1
). Avaliou-se a produtividade através do peso fresco e
do peso seco das flores e das plantas sem flores, e do diâmetro das flores, ao longo de
42 dias após o início da floração (DAF) em 6 momentos de avaliação (7,14, 21, 28,
35 e 42 DAF), e a altura das plantas em 3 momentos (após plantação, após floração e
no fim da floração).
O peso fresco das flores de calêndula aumentou significativamente com a dose
superior de compostado hortofrutícola face ao substrato comercial, na primeira metade
do tempo de floração, no entanto, o mesmo aumento de produção do peso fresco das
flores com a dose mais elevada de compostado na espécie centáurea nãofoi tão
evidente. Uma das limitações pela qual se obtiveram resultados não significativos na
espécie centáurea poderá ter-se devido ao facto de esta espécie se adaptar a solos
pobres sem grandes necessidades de fertilização e provavelmente na espécie da
calêndula existiu em consequência uma maior disponibilização de azoto e outros
nutrientes do compostado hortofrutícola em relação ao substrato comercial devido ao
seu maior teor em NPK. Recomenda-se para a produção de flores da espécie calêndula umafertilização
com 10 a 20 t ha-1
de compostado de resíduos hortofrutícolas e após uma maturação
de 6 meses. Por outro lado, na espécie centáurea a dose de 10 t ha-1
de compostado de
resíduos hortofrutícolas prevê-se suficiente para garantir uma produção de flores
elevada. Conclui-se que a utilização de o compostado realizado na exploração com
resíduos hortofrutícolas tem potencial para substituir o substrato comercial Siro
indicado para plantas aromáticas na produção de flores comestíveisThere are many organic residues resulting from agricultural production activity
and the use or deposit of these residues is often ineffectively managed by farms, which
can be a threat to the environment and human health. Portugal must develop a circular
and sustainable economy, making it possible for organic farmingto contribute to
sustainability through the reuse of organic waste generated by the activity, through
composting, generating their own organic fertilizer for applicationin their crops.
This study aimed to evaluate the effect of the application of different organic
fertilizers on marigold (Calendula officinalis L.) and cornflower (Centaurea cyanus
L.) organic crops. The experiment included the use of a commercial substrate (7 t ha1
) and a compost of fruit and vegetable residues (at application rates of 10 t ha-1
and
20 t ha-1
). Crop yield was evaluated by fresh and dry weight of the flowers, and of
plants without flowers, and by the diameter of the flowers, over a period of 42 days,
after the beginning of flowering (DAF), in six moments (7, 14, 21, 28, 35 and 42 DAF).
In addition, the height of the plants was evaluated at three moments (after planting,
after flowering and at the end of flowering).
The fresh weight of marigold flowers increased significantly with the higher
rate of fruit and vegetable compost compared to the commercial substrate, in the first
half of the flowering time. However, the same increase in production of fresh weight
of flowers with the highest rate of compost in the cornflower species was not so
evident. One of the limitations for which non-significant differences were obtained in
the cornflower species may have been because this species adapts to poor soils without
great need for fertilization. In contrast, the marigold species responded to a greater
availability of nitrogen and other nutrients of the fruit and vegetable compost in
relation to the commercial substrate due to its higher NPK content.
It is recommended to produce flowers of the marigold species a fertilization
with at least 10 to 20 t ha-1
of fruit and vegetable residue compost, and after a
maturation period of 6 months. On the other hand, for the cornflower species, the rate
of 10 t ha-1
of compost from fruit and vegetable residues is expected to be sufficient to guarantee a high production of flowers. It is concluded that the use of a compost of
fruit and vegetable residues set up in the farm has potential to replace the commercial
substrate Siro indicated for aromatic plants in the production of edible flower
Adventure sports and nature-based tourism : assessment of canyoning spots in the north region of Portugal
No full textThe growing demand for natural areas and outdoor activities in the last decade, even more noticeable in the COVID19 worldwide pandemic situation, has led to the intensification and diversification of nature-based tourism supply in many regions, including the provision of adventure recreation activities, such as canyoning. However, and despite the increasing interest of companies, destinations, and academia in this specific type of activity, there is limited information on resources, practice conditions, and assessments based on specific, objective criteria. This information is critical for a more competitive
development and positioning of regions for this activity, and to meet tourists’ increasingly demanding expectations. Therefore, this paper aims at building upon the identified research gap, by characterizing and evaluating the existing conditions for canyoning activity in the North Region of Portugal, This evaluation of twenty-seven canyoning spots. was done based on an assessment matrix, comprised of specific criteria, grounded on the literature review and semi-structured interviews with companies’ owners/managers and experts. The study concludes that the activity is evolving in the region and
there is still potential for development, due to morphological, favourable conditions. Moreover, the region offers different spots, often inserted in protected areas, with unique landscapes and natural diversity, which is attractive for tourism. The presentation of an assessment matrix (that allows the characterization and evaluation of canyoning spots on a systematic approach in different geographic contexts) makes this study a contribution to the literature on nature-based, adventure tourism and recreation activities.8014-1B5A-933A | Goretti SilvaN/
GNSS-free outdoor localization techniques for resource-constrained IoT architectures : a literature review
Get PDFLarge-scale deployments of the Internet of Things (IoT) are adopted for performance
improvement and cost reduction in several application domains. The four main IoT application
domains covered throughout this article are smart cities, smart transportation, smart healthcare, and
smart manufacturing. To increase IoT applicability, data generated by the IoT devices need to be
time-stamped and spatially contextualized. LPWANs have become an attractive solution for outdoor
localization and received significant attention from the research community due to low-power,
low-cost, and long-range communication. In addition, its signals can be used for communication
and localization simultaneously. There are different proposed localization methods to obtain the
IoT relative location. Each category of these proposed methods has pros and cons that make them
useful for specific IoT systems. Nevertheless, there are some limitations in proposed localization
methods that need to be eliminated to meet the IoT ecosystem needs completely. This has motivated
this work and provided the following contributions: (1) definition of the main requirements and
limitations of outdoor localization techniques for the IoT ecosystem, (2) description of the most
relevant GNSS-free outdoor localization methods with a focus on LPWAN technologies, (3) survey
the most relevant methods used within the IoT ecosystem for improving GNSS-free localization
accuracy, and (4) discussion covering the open challenges and future directions within the field.
Some of the important open issues that have different requirements in different IoT systems include
energy consumption, security and privacy, accuracy, and scalability. This paper provides an overview
of research works that have been published between 2018 to July 2021 and made available through
the Google Scholar database.5311-8814-F0ED | Sara Maria da Cruz Maia de Oliveira PaivaN/
Pré-requisitos e plano de HACCP numa empresa de consultoria alimentar
Get PDFMestrado em Engenharia Alimentar na Escola Superior de Tecnologia e Gestão do Instituto Politécnico de Viana do CasteloEste estudo foi desenvolvido na empresa NORTEMED SHST, tendo como objetivo a avaliação das condições de higiene e segurança alimentar, através do cumprimento dos pré-requisitos dos clientes da empresa com setor de atividades na área alimentar. De forma a efetuar uma comparação, foi também verificado o cumprimento dos pré-requisitos em três dos setores: cafés, cantinas de apoio escolar e a idosos e restaurantes. Previamente foi realizada uma revisão documental na NORTEMED, assim como a atualização dos documentos necessários à realização de auditorias de campo.
Para o cumprimento dos pré-requisitos, pode-se afirmar que a maior percentagem de não conformidades é registada na formação dos operadores, onde 70% da amostra não cumpre com este pré-requisitos, seguindo-se situações de rastreabilidade, nomeadamente no controlo de mercadorias rececionadas e fornecedores, registando-se não conformidade e situações de melhoria em 53% e 83%, respetivamente. Para as boas práticas implementadas, foi registada maior conformidade na higienização dos produtos hortofrutícolas, 56%. Dos três setores em estudo, de modo geral, verifica-se que a maior percentagem de conformidades é referente ao setor de cantinas escolares e de apoio a idoso, mostrando a sensibilização dos operadores para as questões relacionadas e nas consequências das más práticas para o publico alvo. Verificaram--se falhas na implementação e manutenção de sistemas de segurança alimentar, associados à falta de conhecimentos e interesse dos proprietários. Neste sentido, para além do acompanhamento dos serviços pela entidade externa, é fundamental a realização de inspeções preventivas por parte das autoridades reguladoras, de forma a sensibilizar os operadores para o cumprimento das normas em vigor.
É ainda apresentado um plano de HACCP passo a passo, desenvolvido para um entreposto frigorifico de armazenamento de carnes, tendo sido obtidos seis pontos críticos. Destaco esta tarefa como a mais desafiante ao longo do trabalho desenvolvido, pela oportunidade de implementar um sistema de segurança alimentar num setor sensível dado tratar-se de produtos perecíveis. Esta experiência permitiu-me ainda o acompanhamento da vistoria periódica por parte da direção geral da alimentação e veterinária.
O trabalho desenvolvido na NORTEMED SHST correspondeu às expectativas e permitiu verificar que é imprescindível o acompanhamento dos sistemas de segurança alimentar implementados. Para além do contacto com a área alimentar, esta experiência foi bastante desafiante pela possibilidade de implementar novas metodologias de trabalho e participar nas variadas tarefas propostas, enriquecendo e consolidando os meus conhecimentos.This study was developed at NORTEMED SHST, with the objective of evaluating food safety conditions, through the fulfillment of the company's customer's prerequisites with activity in the food sector. In order to establish a comparison between sectors, it was verified the compliance of the prerequisites on three sectors: cafes, school and retirement home canteens and restaurants. Previously, a document review was carried out at NORTEMED, as well as the updating of the working documents for carrying out field audits.
In order to meet the prerequisites, it can be stated that the highest percentage of non-compliance is recorded in the training of operators, where 70% of the sample does not meet these prerequisites, following traceability situations, in particular verify on food received and suppliers, with non-compliance and improvement at 53% and 83% respectively. For the good practices implemented, greater compliance was registered in the hygiene of fruit and vegetable products, 56%. From the three sectors under study, it is generally observed that the highest percentage of conformities is related to the school canteen and elderly support sector, by showing operators' awareness of the related issues in the consequences of bad practices for the target audience. It is possible to verify failures associated with the implementation and maintenance of food safety systems, most of which are due to the lack of knowledge and interest of the owners. In this sense, in addition to the monitoring of the services by the external entity, it is essential that preventive inspections be carried out by the regulatory authorities to make operators aware of compliance with the rules in force.
A step-by-step HACCP plan is also presented, developed for a meat storage cold store, and six critical points have been obtained. I highlight this task as the most challenging throughout the work developed, for the opportunity to implement a food security system in a sector that has more vigorous control as it is perishable products. This experience has allowed me the monitoring of a periodic survey by the general direction of food and veterinary. The work developed at NORTEMED SHST corresponded to expectations and allowed to verify that it is essential to monitor the food security systems implemented. In addition to the contact with the food area, this experience was quite challenging due to the possibility of implementing new work methodologies and participating in the various tasks proposed, enriching knowledge
Descriptive Acute Respiratory Distress Syndrome (ARDS) in adults with imported severe Plasmodium falciparum malaria: A 10 year-study in a Portuguese tertiary care hospital
Get PDFAcute respiratory distress syndrome (ARDS) is a severe complication of malaria that remains largely unstudied. We aim to describe the development of ARDS associated with severe P. falciparum malaria, its management and impact on clinical outcome.B910-DDDF-6BB2 | Luís Carlos Carvalho da GraçaN/
a study in youth soccer players
Get PDFPurpose: The purpose of this study was to analyze variations of selection for competition between late and early mature players and test the relationships between anthropometry, body composition, maturation, and selection for competition.
Methods: Seventy-nine youth soccer players from under-11 to under-14 participated in this study, over 6 months. Body composition and maturity offset were estimated based on anthropometric data collected. Participants were also monitored for their number of matches as starters and time of play accrued in minutes.
Results: Minutes played had large correlation coefficients with maturity offset (r = 0.58), and leg length and sitting height interaction (r = 0.56). Multiple linear regression explained 35% of the variation in minutes played (p < 0.001, R2 = 0.41, R2 adjusted = 0.35, RMSE = 334.8), but only 12% of the variation in matches as starter (p = 0.04, R 2 = 0.21, R2 adjusted = 0.12, RMSE = 5.47) between above and below the median of the maturity offset was accounted for, respectively.
Conclusions: Although maturation may play a role in the minutes of play accrued and matches as starters in young, it is not necessarily determining. A significant amount of the variation in the minutes of play accrued of players can be accounted for when considering body composition and anthropometric data.D915-7373-ED16 | Cesar LeaoN/
A methodology for the identification and assessment of the conditions for the practice of outdoor and sport tourism-related activities: the case of northern Portugal
Get PDFTourists’ demand for outdoor sport-related activities has been growing in the last decade, leading to the recognition of the outdoor tourism potential of the development of rural and urban areas where the activities could take place. While the literature has recognized this potential, its features and the existing conditions for its practice are often not fully comprehended, mainly due to the lack of measurement systems and performance indicators. This study addresses this gap by proposing a wide-ranging assessment matrix of nine outdoor-related activities, employing northern Portugal as a study area. Based on an exploratory qualitative analysis employing semi-structured interviews with key stakeholders (public, private and third sector), the main contribution of this study lies in the development of the outdoor tourism assessment matrix (OTAM) to collect data. The OTAM matrix aims to identify and assess the conditions, namely the infrastructure and resources, for the practice of outdoor and sport tourism-related activities within the sustainable development pillars. The nine matrices comprising the OTAM allow the identification of the places where the outdoor activities can be practiced, and the conditions under which they can contribute to the definition of the development strategies of outdoor tourism.B913-0565-0908 | Elvira VieiraN/
A visual approach for solving problems with fractions
Get PDFThis article discusses the importance of visual models in problem solving, in the scope of rational numbers. We seek to highlight the potential of this approach, as a structuring theme in the mathematical development of students in elementary education and the connections it allows to establish. In order for students to be mathematically competent and creative, they must be able not only to solve traditional computational problems but also to use models/visual representations when solving all types of mathematical problems, including those in which the visual component is not evident. We developed a qualitative study based on a didactical experience involving 14 future teachers who were attending a Didactics of Mathematics unit course that included a module about problem solving with emphasizes in visual approaches. The main purpose of the study was to identify the strategies used by the future teachers when solving problems with multiple solutions, before and after that module. Data was collected through observation and the written productions of the participants. It was possible to conclude that they tended to privilege analytical approaches before the intervention and, after the teaching experience, they started to value visual approaches, which generated an increase of the productions involving this type of solutions.0D1E-4824-1244 | Ana Cristina Coelho BarbosaN/
PM2.5 chemical composition and health risks by inhalation near a chemical complex
Get PDFParticulate matter (PM2.5) samples were collected in the vicinity of an industrial chemical pole and analysed for organic and elemental carbon (OC and EC), 47 trace elements and around 150 organic constituents. On average, OC and EC accounted for 25.2% and 11.4% of the PM2.5 mass, respectively. Organic compounds comprised polycyclic aromatic hydrocarbons (PAHs), alkylated PAHs, anhydrosugars, phenolics, aromatic ketones, glycerol derivatives, aliphatic alcohols, sterols, and carboxyl groups, including aromatic, carboxylic and dicarboxylic acids. Enrichment factors > 100 were obtained for Pb, Cd, Zn, Cu, Sn, B, Se, Bi, Sb and Mo, showing the contribution of industrial emissions and nearby major roads. Principal component analysis revealed that vehicle, industrial and biomass burning emissions accounted for 66%, 11% and 9%, respectively, of the total PM2.5-bound PAHs. Some of the detected organic constituents are likely associated with plasticiser ingredients and thermal stabilisers used in the manufacture of PVC and other plastics in the industrial complex. Photooxidation products of both anthropogenic (e.g., toluene) and biogenic (e.g., isoprene and pinenes) precursors were also observed. It was estimated that biomass burning accounted for 13.8% of the PM2.5 concentrations and that secondary OC represented 37.6% of the total OC. The lifetime cancer risk from inhalation exposure to PM2.5-bound PAHs was found to be negligible, but it exceeded the threshold of 10−6 for metal(loi)s, mainly due to Cr and As.3518-5DB7-75B0 | Mário ToméN/