This paper was conceived within the scope of a wider study conducted by DINAMIA’CET-IUL for EGEAC (Lisbon Municipality’s Enterprise for Management of Cultural Facilities and Cultural Animation). The authors acknowledge the contributions of all participants involved in the study, particularly to the teams of the two museums. Versions of this paper were presented at the 18th International Conference on Cultural E...
This paper discusses a linear time invariant (LTI) systems approach to signal enhancement via projective subspace techniques. It provides closed form expressions for the frequency response of data adaptive finite impulse response eigenfilters. An illustrative example using speech enhancement is also presented. ; Este artigo apresenta a aplicação da teoria de sistemas lineares invariantes no tempo...
Melatonin regulates the reproductive cycle, energy metabolism and may also act as a potential antioxidant indoleamine. The present study was undertaken to investigate whether long-term melatonin treatment can induce reproductive alterations and if it can protect ovarian tissue against lipid peroxidation during ovulation. Twenty-four adult female Wistar rats, 60 days old (± 250-260 g), were randomly divided into...
Zygomycosis is an infection caused by opportunistic fungi of the Zygomycetes class, specifically those from the Mucorales and Entomophthorales orders. It is an uncommon disease, mainly restricted to immunocompromised patients. We report a case of a 73-year-old male patient with a history of fever (39°C) lasting for 1 day, accompanied by shivering, trembling, and intense asthenia. The patient was admitted to the...
Several young ostrich, including nestlings, with lassitude and inappetence followed by death or victim of sudden death were immediately brought to diagnosis at an Animal Health Laboratory. At necropsy, animals presented hemorrhage and altered content of the vitelline sac, and necrotic foci in the small intestine; one animal showed necrotic pleuropneumonia with psammomatosus bodies in the lung parenchyma. The cu...
Tornabenea is a small Apiaceae genus that is endemic to the Cape Verde Islands. Its species differentiation is based just on a few macromorphological characters: leaf shape, number and shape of umbel bracts and mericarp ribs. These characters vary within each species and show high plasticity. Thus, in recent taxonomic data of the genus, there are different viewpoints as to the number of species. Here, in order ...
The main objective of this research is to evaluate the molluscicide activity of Physalis angulata L. Biomphalaria tenagophila specimens under laboratory conditions. Extracts and fractions were supplied by the Laboratório de Química de Produtos Naturais, Farmanguinhos-Fiocruz. Experiments were performed according to the methodology described by the World Health Organization for molluscicide tests using the conce...
O objetivo deste trabalho foi avaliar a influência do estresse alimentar sobre a digestibilidade aparente de uma dieta comercial em cães. Foram utilizados 12 animais, sem raça definida, divididos em dois grupos de seis, submetidos a: tratamento 1 (T1) - caracterizado por indução do estresse alimentar pela irregularidade do horário de alimentação e provocação por estímulos visuais, olfatórios e auditivos, e trat...
Determinou-se a composição química do sorgo pela espectroscopia de reflectância no infravermelho próximo (NIRS), comparando-a com os dados obtidos pelas análises convencionais de laboratório. Foram utilizadas 132 amostras de quatro variedades de sorgo: AG212 (porte alto), AG 2002 (porte alto), AG 2005 (duplo propósito) e AG 213 (porte alto). Com o intuito de se obter uma curva ampla, todas as amostras foram agr...
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