8 documents found, page 1 of 1
Circannual prevalence of tetrodotoxins in trumpet shells: sea stars as a possib...
Pais, Maria; Carvalho, Flávia; Frade, Magda; Reis Costa, Pedro; Silva, José Paulo da; Marçalo, Ana; Canario, Adelino; Lage, SandraTetrodotoxin (TTX) is a potent neurotoxin, first identified in fish from the Tetraodontidae family but also detected in marine invertebrates. A Human poisoning episode after consumption of trumpet shell Charonia lampas, likely caught off the Portuguese mainland southern coast - Algarve, together with the increasing reports of TTX in European waters, led the European Food Safety Authority (EFSA) to recommend max...
Mental health of higher education students and the consumption of psychoactive ...
Rodrigues, Adriana; Simões, Andreia; Pais, Maria; Guerra, Magda; Coelho, Mauro; Rosa, Paulino; Ferreira, Nuno; Marinheiro, ProvidênciaThe consumption of psychoactive substances is a growing public and social health problem, leading to a negative multidimensional impact on mental health, especially among higher education students. In this study, we sought to identify scientific evidence on mental health and consumption of psychoactive substances in higher education students. To this end, an integrative review of the literature was carried out,...
A comprehensive assessment of the transcriptome of cork oak (Quercus suber) thr...
Pereira-Leal, José B; Abreu, Isabel A; Alabaça, Cláudia S; Almeida, Maria; Almeida, Paulo; Almeida, Tânia; Amorim, Maria; Araújo, SusanaCork oak (Quercus suber) is one of the rare trees with the ability to produce cork, a material widely used to make wine bottle stoppers, flooring and insulation materials, among many other uses. The molecular mechanisms of cork formation are still poorly understood, in great part due to the difficulty in studying a species with a long life-cycle and for which there is scarce molecular/genomic information. Cork ...
Acute Panmyelosis with Myelofibrosis: A Rare Cause of Pancytopenia
Falé, Cláudia; Araújo, Ana; Lourenço, Sílvia; Pais, MariaAcute Panmyelosis with myelofibrosis is a rare and aggressive acute myeloid leukemia accounting for 2% of all acute leukemias. Clinically, it is characterized by an acute onset of cytopenias associated with extensive bone marrow fibrosis in the absence of splenomegaly and related morphological changes in the red blood cells such as dacryocytes. The presence of fibrosis further complicates the correct diagnosis ...
O modelo das Finanças da Europa versus o modelo do Federalismo Financeiro
Pais, MariaIP Guarda
Induction of haploid morphogenic calluses from in vitro cultured anthers
Peixe, Augusto; Barroso, João; Potes, Amely; Pais, MariaApricot (Prunus armeniaca) ‘Harcot’ anthers were cultured in vitro for the production of haploid plants. The best androgenic response was achieved with Nitsch and Nitsch (1969) medium, supplemented with 4.52 microM 2,4-D, 4.52 micoM zeatin, 2.85 microM IAA and 40 g l−1 sucrose. Cultures were maintained in the dark for 8 days, at 28 ◦C, followed by transfer to a 16-h photoperiod, with 35 micro mm−2 s−1 light int...
Gamma-irradiated pollen induces the formation of 2n endosperm and abnormal embr...
Peixe, Augusto; Campos, Maria; Cavaleiro, Cremilde; Barroso, João; Pais, MariaThe effect of gamma radiation on pollen germination capacity and pollen tube growth was evaluated in vitro and in situ conditions. In vitro experiments, revealed that irradiation significantly affects pollen viability, mainly for levels higher than 200 Grays (Gy). Also, for levels higher than 200 Gy, in situ observations showed that no pollen tube reached the ovule. Fruit set results confirmed that for irradiat...
The core and fluctuations in the Earth's rotation
Pais, Maria; Ponsar, S.; Dehant, V.; Holme, R.; Van Hoolst, T.; Jault, D.7017-3058-80D6 | Maria Alexandra Albuquerque Faria Pais; N/A