A Castro - organização, inventariação e análise de um painel de azulejos do Conservatório Nacional : apoio ao desenvolvimento de protótipo de aplicação interativa para suporte ao restauro de azulejaria

O presente relatório de estágio descreve o trabalho desenvolvido durante o estágio curricular no Museu Nacional do Azulejo (MNAz). O projeto compreende o plano proposto pela entidade de acolhimento – MNAz – e pela participação e apoio num projeto de mestrado de um discente do ISCTE - Instituto Universitário de Lisboa (ISCTE-IUL). O plano de estágio com o Museu Nacional do Azulejo consistiu na organização, identificação, inventariação e análise de um painel de azulejos intitulado A Castro, pertencente a um conjunto azulejar do século XX, originalmente instalado no corredor dos Passos Perdidos do Conservatório Nacional, em Lisboa. Em parceria com um aluno de Mestrado em Engenharia Informática (MEI) do ISCTE-IUL, será fornecido o apoio ao desenvolvimento de um protótipo de aplicação interativa para auxílio ao restauro de azulejaria. O relatório de estágio está dividido em quatro capítulos distintos, cada um destes organizado em subcapítulos. O primeiro capítulo corresponde a uma breve introdução à instituição de acolhimento Museu Nacional do Azulejo, abordando o seu percurso e enquadramento histórico, desde a fundação do Convento da Madre de Deus até à integração do atual museu. No capítulo seguinte são apresentadas todas as atividades práticas desenvolvidas em contexto de estágio na instituição de acolhimento, reportando as metodologias utilizadas, a análise do objeto de estudo e identificando as suas particularidades. No terceiro capítulo proceder-se-á à análise e investigação de A Castro, foco do nosso estudo, onde serão fundamentados aspetos como a identificação da sua temática e características técnicas e estilísticas, estado de conservação, autoria, encomenda e contextualização histórica. Reporta-se, no quarto e último capítulo, o apoio atribuído ao projeto de produção de um protótipo de aplicação interativa digital para o auxílio na inventariação e no restauro de azulejos. Seguem, por fim, as considerações finais.This internship report describes the work developed during curricular internship at the Museu Nacional do Azulejo (MNAz). The project comprises the plan proposed by the host entity – MNAz – and the participation and support in a master's degree project of a ISCTE - Instituto Universitário de Lisboa (ISCTE-IUL) student. The internship plan concerted by agreement with the Museu Nacional do Azulejo aims the organization, identification, inventory and analysis of a tile panel entitled A Castro belonging to a set of panels from the 20th century originally installed in the hall of Passos Perdidos at the Conservatório Nacional in Lisbon. In partnership with a master student in Computer Engineering (MEI) of ISCTE-IUL, support will be provided for the development of an interactive prototype application for the assistance in tiles restoration. The internship report will be divided in four distinct chapters, each one of these organized through sub-chapters. The first chapter corresponds to a brief introduction of the host institution, the Museu Nacional do Azulejo, alluding to its path and historical context since the foundation of Convento da Madre de Deus to the integration of the current museum, mission and activities developed by the institution. In the following chapter are described all the practical activities during the internship, like the applied methodologies, examination and identification of particularities found in the object of study. The analysis and investigation of A Castro can be found in the third chapter, where subjects such as thematic identification and technical and formal characteristics, state of preservation, authorship, order and historical contextualization are substantiated. In the fourth and final chapter it is described the support given to the interactive prototype application project developed for the assistance in tile’s restoration. Lastly, the final considerations

Kajian potensi ekstrak bilberi sebagai penunjuk pH untuk memantau kesegaran makanan secara kromametri

Penunjuk pH sebagai suatu pendekatan untuk memantau kualiti atau kesegaran makanan semasa telah mendapat perhatian industri pembungkusan makanan. Penggunaan sumber semula jadi pigmen tumbuhan terutamanya daripada buah-buahan dan sayur-sayuran menjadi pilihan para pengguna untuk menggantikan pewarna sintetik dalam memastikan keselamatan makanan yang diambil setiap hari. Dalam kajian ini, ekstrak daripada bilberi telah digunakan sebagai pewarna sensitif pH. Perubahan warna sampel dikaji secara terperinci melalui kaedah kromametri dan juga kaedah spektrofotometri ultra-lembayung nampak. Warna merah terang terhasil dalam pH berasid, merah pudar pada neutral dan magenta ke kuning dalam pH beralkali. Keputusan kajian kromametri menunjukkan bahawa ekstrak bilberi berupaya mempamerkan perubahan warna yang jelas terhadap perubahan pH, iaitu terdapat perubahan nilai warna a* yang menyumbang kepada perubahan yang bererti dalam perbezaan warna keseluruhan (ΔE*). Nilai ΔE* juga ditentukan wujud hubungan linear dan kuantitatif terhadap julat pH tertentu. Oleh yang demikian, ekstrak bilberi didapati berpotensi sebagai bahan sensor untuk pH dalam membangunkan satu sensor pH bagi memantau kesegaran makanan terutamanya hasilan laut berbungkus memandangkan tahap kerosakan produk tersebut berkait rapat dengan perubahan pH ke arah alkali

Need for harmonized long-term multi-lake monitoring of African Great Lakes

To ensure the long-term sustainable use of African Great Lakes (AGL), and to better understand the functioning of these ecosystems, authorities, managers and scientists need regularly collected scientific data and information of key environmental indicators over multi-years to make informed decisions. Monitoring is regularly conducted at some sites across AGL; while at others sites, it is rare or conducted irregularly in response to sporadic funding or short-term projects/studies. Managers and scientists working on the AGL thus often lack critical long-term data to evaluate and gauge ongoing changes. Hence, we propose a multi-lake approach to harmonize data collection modalities for better understanding of regional and global environmental impacts on AGL. Climate variability has had strong impacts on all AGL in the recent past. Although these lakes have specific characteristics, their limnological cycles show many similarities. Because different anthropogenic pressures take place at the different AGL, harmonized multi-lake monitoring will provide comparable data to address the main drivers of concern (climate versus regional anthropogenic impact). To realize harmonized long-term multi-lake monitoring, the approach will need: (1) support of a wide community of researchers and managers; (2) political goodwill towards a common goal for such monitoring; and (3) sufficient capacity (e.g., institutional, financial, human and logistic resources) for its implementation. This paper presents an assessment of the state of monitoring the AGL and possible approaches to realize a long-term, multi-lake harmonized monitoring strategy. Key parameters are proposed. The support of national and regional authorities is necessary as each AGL crosses international boundaries