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  • Minerais
    Publication . Pereira, Pedro
    O presente texto aborda conceitos introdutórios de Mineralogia no que respeita a definição de mineral e a génese, classificação e propriedades dos minerais.
  • Amianto em Portugal: a difícil aplicação da Lei 2/2011
    Publication . Janela, José; Pereira, Pedro
    Para fazer face a problemas de saúde ambiental provocados pelo amianto, o Parlamento Português aprovou a Lei 2/2011, visando a remoção de materiais com amianto existentes em edifícios públicos. Após consulta de documentos oficiais e entrevistas a responsáveis de entidades públicas e outros atores chave, demonstra-se que a lei só muito parcialmente foi cumprida. A maior parte da Administração Pública não estava preparada cientificamente nem tinha recursos humanos e financeiros suficientes para aplicar a legislação. O resultado foi um levantamento muito incompleto de edifícios com amianto. Só dois anos após o prazo previsto, e após grande pressão pública, com ampla e determinante cobertura mediática, se publicou uma primeira lista dos edifícios públicos com amianto em Portugal continental, não existindo ainda previsão do prazo de remoção total desse material.
  • Integrating sustainable approaches in distance learning universities: the experience of Universidade Aberta
    Publication . Mapar, Mahsa; Nicolau, Paula Bacelar; Ferreira, Célia; Martins, Rute; Martinho, Ana Paula; Pereira, Pedro; Simão, João; Teixeira, Teresa; Trindade, Jorge; Fernandes, Paula Vaz; Caeiro, Sandra
    One of the key components in practicing sustainability and developing a sustainable Higher Education Institution (HEI) is the role played by the institution community including students and its staff, both administrative and academics according to a whole-campus approach. However, there is still a lack of how to integrate sustainability-related approaches into the HEIs, by involving the whole community of the HEI, in particular in distance-learning institutions. Recognizing this lack, Universidade Aberta (UAb), the Portuguese Distance Learning University, has recently integrated sustainability approaches into the University actions by establishing the “UAb Sustainable Campus Group” in 2021. In line with Agenda 2030, the Group promotes the sustainability approaches at UAb in 5 core elements of sustainability actions at HEIs: i) planning and administration, ii) operation and innovation, iii) academia and research, iv) assessment and reporting, and v) involvement with the community. This paper aims to reveal the recent sustainability initiatives (2021-2023) carried out by the Group and enlighten how a distance-learning University's actions, programs, and approaches have been integrated into the core elements of sustainability actions at HEIs. Several steps were implemented to address sustainability initiatives at UAb based on the proposed framework, considering: 1) “planning and administration”, by the formal commitment to sustainability that arose in the UAb Strategic Plan (2019-2023) to enforce sustainability initiatives centered on people and social commitment; 2) “operation”, by UAb contribution to the resource efficiency programs; 3) “academia and research”, by designing a micro-credential module entitled “Sustainable Development Goals (SDGs)”, that were piloted in the academic year 2022-2023 and were evaluated the students’ knowledge improvement on SDGs and sustainability and their perceptions on the effectiveness of the training through pre- and postquestionnaires; 4) “assessment and reporting”, through self-assessment and reporting tools, among them, Time Higher Education Impact Ranking, which ranked the UAb sustainability initiatives towards SDGs 4, 5, 6, 8, 10, and 17. Also, with the collaboration of the administrative staff, the UAb Ecological Footprint (EF) was self-assessed through the University Ecological Footprint Calculator, which allows HEIs to calculate their consumption of natural resources and ecosystem services within the direct and indirect responsibilities of the administration, by bearing in mind the specific feature of distance learning. The results for “planning and administration” showed the UAb commitment to sustainable campus by the signatory of several associations, e.g., RCS-Portugal, AASHE - Association for the Advancement of Sustainability in Higher Education, and Lisbon Green Commitment to implement a set of measures to reduce the environmental impacts by 2030. In the “operation” element, the results revealed the UAb contribution to the Resource Efficiency Program in Public Administration - ECO.AP 2030 to reduce the consumption of resources and respective Greenhouse Gas emissions facilities, as well as the Energy Saving Plan (2022-2023). The results of the “academia and research” element based on the SDGs course showed the students’ knowledge improvement of both Sustainability and SDGs and a high level of satisfaction with the training, mainly appreciating the “diversified learning resources”. The results of the “assessment and reporting” based on THE displayed the UAb improvement on SDGs 4 and 5. The results of the EF calculator disclosed that “staff labour” was the main driver of the UAb Footprint in direct responsibility, whereas “energy consumption at home” was the main indirect contributor to the UAb Footprint, which showed the effect of distance learning on the results. Future work of the Group includes offering the SDGs micro-credential, targeting also public and private organizations, and later as a formal curricular unit in various degrees, thus enhancing the “involving the community” element. Also, based on the results of the assessment tools, the major drivers of unsustainability at UAb will be identified to assist the necessary improvement to reduce the environmental impact of UAb, thus reinforcing its commitment to building a more sustainable community. The framework for the implementation of sustainability in UAb can be adapted and tested in other HEI to produce robust knowledge and action in this context.
  • Comparação entre modelos pedagógicos de dois cursos de licenciatura na modalidade a distância em ciências aplicadas em Portugal e no Brasil
    Publication . Ishida, Márcia; Martinho, Ana Paula; Amante, Lúcia; Pereira, Pedro; Caeiro, Sandra
    A Universidade Aberta de Portugal, fundada em 1988, é a única instituição pública de ensino superior a distância no país, oferecendo cursos para qualquer parte do mundo. Tornou-se referência no domínio avançado do e-learning e da aprendizagem online através do desenvolvimento do seu Modelo Pedagógico Virtual. No Brasil, a partir da implantação do Sistema Universidade Aberta, a educação a distância vem sendo implementada sistematicamente nas Instituições de Ensino Superior Públicas, como uma das políticas governamentais de inclusão social e acesso ao ensino superior público de qualidade. O presente trabalho tem por objetivo comparar dois modelos pedagógicos de cursos de licenciatura oferecidos na modalidade a distância na área das ciências aplicadas: Ciências do Ambiente da Universidade Aberta de Portugal e Ciências Biológicas da Universidade Federal de Santa Catarina, integrante do Sistema Universidade Aberta do Brasil. As diferenças são realçadas e é efetuada uma análise SWOT a cada curso (Forças, Fraquezas, Oportunidades e Condicionantes), tendo em conta que são cursos na área das ciências e normalmente associados a componentes presenciais práticas. Concluiu-se que a troca de experiências entre universidades que adotam o sistema de aprendizagem e-learning e a parceria com instituição de prestígio como a Universidade Aberta de Portugal que possui tradição nessa modalidade de ensino possibilitam o aperfeiçoamento do Projeto Político Pedagógico dos cursos superiores no Brasil e contribuem para a democratização do acesso ao ensino superior de qualidade no Brasil e em Portugal.
  • Desafios, modelos e práticas de gestão hoteleira sustentável
    Publication . Gomes, Luciana; Pereira, Pedro; Javier Pardo Abad, Carlos; Dantas, Andréa
  • Estratégias e iniciativas da Universidade Aberta para a promoção da originalidade nos trabalhos académicos
    Publication . Novo, Ana; Nobre, Ana; Simão, João; Pereira, Pedro
    O plágio tem assumido crescente relevância no ensino superior, sendo responsabilidade de todos contribuir para a integridade e originalidade dos trabalhos académicos. O presente capítulo pretende ilustrar as atividades desenvolvidas junto dos docentes e estudantes e as boas práticas implementadas pelo Grupo de Trabalho para a Promoção da Originalidade nos Trabalhos Académicos na Universidade Aberta (2017-2020), com o objetivo de prevenir e sensibilizar a comunidade académica para a adoção de comportamentos éticos relativamente à utilização de informação.
  • ARK multi-user
    Publication . Pereira, Pedro; Matos, Nuno; Grave, Luís; Marcos, Adérito
    This paper presents a monitor-based prototype for the visualisation and interaction of an Augmented Reality (AR) system, which recently developed at CCG and demonstrated during the SIACG2002 conference held in Guimarães, Portugal. ARK – Augmented Reality Kiosk - is a set-up based on the prototypes developed in the European Virtual Showcases project to which direct interaction has been added. A normal monitor and a half-silvered mirror constitute the usual set-up for the kiosk. By integrating a half-silvered mirror and a black virtual hand, the CCG solution solves the occlusion problem that normally occurs when a user interacts with a virtual environment displayed by a monitor or other projection system. Conceived with limited monetary resources this portable solution can be deployed in different application contexts as, for instance, culture heritage. This paper presents an extension of the solution to a multi-user platform for a Portuguese museum.
  • Motivos geológicos nos azulejos do Palácio Ceia
    Publication . Câmara, Maria Alexandra Gago da; SIlva, Carlos Marques da; Pereira, Pedro
    Recurso educativo sobre os motivos geológicos nos azulejos do Palácio Ceia, com depoimentos dos Professores Doutores Alexandra Gago da Câmara e Carlos Marques da Silva.
  • Sedimentação, rochas sedimentares e tempo geológico
    Publication . Pereira, Pedro
    O presente documento é um texto de cariz didático, elaborado com base em bibliografia atualizada, sobre sedimentação, rochas sedimentares, fósseis, tipos de fossilização e tempo geológico, sendo parte integrante dos materiais de estudo da Unidade Curricular de Geologia Geral I (21056), da Licenciatura em Ciências do Ambiente da Universidade Aberta.
  • Running crabs, walking crinoids, grazing gastropods: behavioral diversity and evolutionary implications in the Cabeço da Ladeira lagerstätte (Middle Jurassic, Portugal)
    Publication . Carvalho, Carlos Neto de; Pereira, Bruno Claro; Klompmaker, Adiel; Baucon, Andrea; Moita, José António; Pereira, Pedro; Machado, Susana; Belo, João; Carvalho, Jorge M. F.; Mergulhão, Lia
    Ichnology is a powerful tool for understanding the evolutionary paths of animal clades, through the paleobiology of behavior preserved in Lagerstätten such as the Cabeço da Ladeira (Portugal) site. Here, the peritidal carbonates of the Chão das Pias Formation (Middle Jurassic, upper Bajocian) record the development of microbial mats in a tidal flat. Episodically, the flat was expanded during periods of equinoctial spring tides that may have been responsible for the in situ killing of several members of echinoderm clades, and the fine preservation of their endoskeleton, in addition to the behavior of an arthropod-dominated endo- and epifauna. Mat-preserved shallow tiers with a moderate ichnodiversity attributed to the Cruziana ichnofacies include trackways of crabs (Laterigradus lusitanica igen. nov., isp. nov.) and shrimps ( Diplopodichnus isp.); trails of fishes (?Undichna), gastropods (Archaeonassa fossulata), isocrinid crinoids (Krinodromos bentou igen. nov., isp. nov.) and insects (Haplotichnus indianensis); and burrows of shrimps or lobsters (Thalassinoides suevicus) and other arthropods (Asterosoma ludwigae, Gyrochorte comosa), or polychaetes (Rhizocorallium commune ). This is implied already above (igen. nov., etc.) and seems not needed. The crab trackways and gastropod bulldozing trails, extending up to 12.3 m, are among the longest invertebrate cursorial traces ever found in the fossil record. The mortichnial crawling trail of a crinoid is the first evidence of locomotion for this group in the fossil record, and a rare unambiguous example of this ethology. Extensive continuous trackways attributed to amphibious crabs record, with great detail, typical gaits of underwater punting and walking sideways on dry land. The earliest evidences of sidewalking behavior may also be evidence for the development of the crab form during their rise in the Jurassic.