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A note on the Gumbel convergence for the Lee and Mykland jump tests

Nunes, J.; Ruas, J.

The Lee and Mykland (2008, 2012) nonparametric jump tests have been widely used in the literature but its critical region is stated with reference to the asymptotic distribution of the maximum of a set of standard normal variates. However, such reference would imply a typo (of a non-negligible order) for the norming constants adopted. By using the asymptotic distribution of the maximum of a set of folded normal...

Date: 2024   |   Origin: Repositório ISCTE

Alpha-tocopherol content on the semimembranosus muscle of Alentejano pigs reare...

Neves, J.; Freitas, A.; Martins, J.; Nunes, J.

This trial was undertaken to determine the effect of the rearing system (intensive vs. extensive) over the content of antioxidants (alpha-tocopherol) in the meat of Alentejano pigs. Sixteen Alentejano pigs with an average body weight (BW) of 60 kg were divided in two groups: Group I (n=10) was allocated in open-air individual pens, while Group II (n=6) was maintained in a 3 ha natural pasture. Both groups were ...


Notas de leitura do processo "Centro Cultural em Beja [1969-1971]"

Nunes, J.; Fernandes, R.

Notas de leitura do processo “Centro Cultural em Beja [1969-1971]” existente no Arquivo do Serviço de Projetos e Obras da Fundação Calouste Gulbenkian, em Lisboa. Registo efetuado em novembro de 2023 no âmbito do projeto de investigação ArchNeed – The Architecture of Need: Community Facilities in Portugal (1945-1985) (Fundação para a Ciência e a Tecnologia – PTDC/ART-DAQ/6510/2020) e publicado online em https:/...

Date: 2023   |   Origin: Repositório ISCTE

Energy transition process and community engagement on geographic islands: the c...

Pacheco, André; Monteiro, Jânio; Santos, Joni; Sequeira, Claudia; Nunes, J.

Islands have the potential to be precursors in the transition to clean energy, by adopting new technologies and applying innovative solutions that can serve as showcases at an international level. This paper is a contribution towards understating the importance of community engagement on energy transition processes. It covers multiple aspects of a green transition process, including technical, environmental, so...


Antibacterial and antioxidant potential of aqueous extracts of bio-residues fro...

Sousa, A. S.; Marçal, S.; Costa, C.; Ferreira, I.; Barros, J.; Nunes, J.; Freitas, A. C.; Morais, A. M. M. B.; Pintado, M.

The production of fresh mushrooms results in a large quantity of bio-residues, which may account for more than 20% of a crop volume and contributes to production costs and environmental impact, if not used. These products consist mainly of stalks, mushrooms of irregular dimensions and shape and basal material. Thus, the main objective of MicoBioExtract project is the valorisation of these bio-residues and the d...


Cartilage restoration of patellofemoral lesions: a systematic review

Andrade, R.; Nunes, J.; Hinckel, B. B.; Gruskay, J.; Vasta, S.; Bastos, R.; Oliveira, Joaquim M.; Reis, R. L.; Gomoll, A. H.; Espregueira-Mendes, João

Purpose This study aimed to systematically analyze the postoperative clinical, functional, and imaging outcomes, complications, reoperations, and failures following patellofemoral cartilage restoration surgery. Methods This review was conducted according to the guidelines of Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). PubMed, EMBASE, and Cochrane Library databases were searched ...


Education and innovation - vet students into technology companies

Gómez-Estrada, Laura; Pietra, L.; Zoli, C.; Soriano Martínez, A.; Karampelas, P.; Almeida, A. M.; Nunes, J.; Martínez Ardil, J. M.

VET education is an effective and accessible way for students, to improve their employability and inclusion possibilities. It allows them to train technically in a short time to do a job and try to access the labor market. However, not even obtaining a qualification aimed at vocational training ensures access to the labor market or real possibilities of emancipation. The success of VET graduates in their first ...


Pricing longevity derivatives via Fourier transforms

Bravo, J. M.; Nunes, J.

Longevity-linked derivatives are one of the most important longevity risk management solutions for pension schemes and life annuity portfolios. In this paper, we decompose several longevity derivatives—such as geared longevity bonds and longevity-spread bonds—into portfolios involving longevity options. For instance, we show that the fair value of an index-based longevity swap can be broken down into a portfoli...

Date: 2021   |   Origin: Repositório ISCTE

Smart cooperation forest: o uso dos meios tecnológicos na manutenção de parcela...

Nascimento, E.; Legrenzi, Elisa; Silva, G.; Assis, J.; Nunes, J.; Silveira, R.; Pereira, Fernando A.; Rodrigues, Pedro M.; Geraldes, Altino

Incêndios florestais são comuns em Portugal, atualmente o país apresenta maior área incendiada da Europa [1]. Apesar da diminuição das áreas incendiadas no ano de 2019 os incêndios florestais ainda são preocupantes para as autoridades portuguesas e estas reconhecem que as estratégias avançadas de supressão do fogo são importantes, mas a prevenção é o fator mais importante e economicamente mais viável dentre as ...

Date: 2020   |   Origin: Biblioteca Digital do IPB


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