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Exploring the toxicity effects of 3-chloromethcathinone (3-CMC) on the morphoph...

António, João; Langa, Ivan; Carvalho, Ana; Vidal, Renata; Tiritan, Maria; Ribeiro, Cláudia

Background: The constant discharge of several potentially harmful compounds to the environment raises significant concerns about the risk of toxicity to non-target organisms and human health [1,2]. The 3-chloromethcathinone (3-CMC) is a chiral synthetic cathinone belonging to the group of new psychoactive substances (NPS) [3]. After consumption, this substance and/or its metabolites are excreted in urine, reach...

Data: 2025   |   Origem: Scientific Letters

Ecotoxicity effects of 3-chloromethcathinone (3-CMC) on the swimming behaviour ...

António, João; Langa, Ivan; Carvalho, Ana; Vidal, Renata; Tiritan, Maria; Ribeiro, Cláudia

Background: The continuous release of various compounds can have potentially harmful effects on non-target organisms, raising concerns about the ecosystem and human health ​(1,2)​. 3-chloromethcathinone (3-CMC) is a chiral synthetic cathinone, classified as a new psychoactive substance (NPS) with similar effects to amphetamines and posing potential toxicological risks ​(3)​. After consumption, 3-CMC and its met...

Data: 2025   |   Origem: Scientific Letters


Influenza and COVID-19 vaccination intention in Portuguese adults from at-risk ...

Godinho, Cristina A.; Francisco, Rita; Gaspar, Rui; Henriques, Joana; Costa, Andreia; António, João; Costa, Diana; Fernandes, Teresa; Arriaga, Miguel

Background Seasonal influenza and COVID-19 vaccines are critical for protecting at-risk populations, yet uptake remains suboptimal in some priority groups. This study aimed to identify psychosocial and structural factors associated with vaccination intention and hesitancy among Portuguese adults from high-risk groups, including older adults, individuals with chronic conditions, healthcare professionals, and pre...


A Scalable Framework to Predict Bitcoin Price Using Support Vector Machine

Monteiro, Stéphane; Oliveira, Diogo; António, João; Henriques, João; Martins, Pedro; Wanzeller, Cristina; Caldeira, Filipe

Stock analysts have been predicting other stocks prices in financial markets by understanding their patterns. Bitcoin is an example of cryptocurrency that has grow enormously since 2020 despite being in the market since 2009. However, cryptocurrencies are volatile and sensitive to thousands of factors and consequently is complex for humans to make predictions even more when those predictions should occur in a d...


2º relatório - vacinação para a COVID-19: intenção e seus preditores. Estudo na...

Godinho, Cristina Albuquerque; Francisco, Rita; Gaspar, Rui; Arriaga, Miguel Telo de; Costa, Andreia Silva da; Costa, Diana; António, João


1º relatório - vacinação para a COVID-19: intenção e seus preditores. Estudo na...

Godinho, Cristina Albuquerque; Francisco, Rita; Gaspar, Rui; Arriaga, Miguel Telo de; Costa, Andreia Silva da; Costa, Diana; António, João


Cysteine Functionalization in the Synthesis of Complex and Well-Defined Bioconj...

António, João

Cancer is one of the leading causes of death worldwide and is a major economic burden for governments and health systems. To address this critical health problem and explore a major economic market, ample research has been performed in the development of novel therapies. Antibody-drug conjugates (ADCs) present themselves as clear front-runners in the battle against cancer. By merging the exceptional targeting a...


Relatório de Estágio Curricular - Olano Portugal Transportes, SA (Guarda)

António, João

O principal objetivo do estágio curricular é colocar em prática os conteúdos apreendidos nas diferentes unidades curriculares da licenciatura e vivenciar o contexto do meio empresarial. O presente relatório apresenta o trabalho desenvolvido no estágio curricular, que teve a duração de 400 horas, previsto no plano de estudos da Licenciatura de Gestão da Escola Superior de Tecnologia e Gestão (ESTG), do Instituto...


O micro-crédito como ferramenta para o relançamento da cultura do café na regiã...

António, João

The cultivation of coffee in Angola was severely disrupted by the war during the last 30 years. The consequences included political instability, abandon of commercial agriculture, exodus of rural populations, replacement of coffee by subsistence crops, and a continuous diminishment of production in all coffee growing areas in the country. In the current after-war period, the recovery of production may play an i...


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