Breast cancer is the primary cause of mortality among women worldwide (1). Discernible patterns can be found within the disease, presenting an opportunity for the application of machine learning (ML), garnering effective results in screening and diagnosis. Different ML algorithms were tested - Decision Tree, Deep Learning (DL), k-Nearest Neighbors (k-NN) and Naïve Bayes - to construct a predictive model allowin...
The concern and desire to follow sustainable practices is increasing, which makes tourists take this into account when choosing a tourism destination. The general objective of this paper is to analyze the difference between tourists' sustainable behavior in their daily lives and in the context of tourism. To answer the objectives of this study, we opted for a quantitative methodological approach since this rese...
The concern and desire to follow sustainable practices is increasing, which makes tourists take this into account when choosing a tourism destination. The general objective of this paper is to analyze the difference between tourists' sustainable behavior in their daily lives and in the context of tourism. To answer the objectives of this study, we opted for a quantitative methodological approach since this rese...
The concern and desire to follow sustainable practices is increasing, which makes tourists take this into account when choosing a tourism destination. The general objective of this paper is to analyze the di erence between tourists' sustainable behavior in their daily lives and in the context of tourism. To answer the objectives of this study, we opted for a quantitative methodological approach since this resea...
O ácaro Varroa destructor, assim como os vírus que transmite, constituem a maior ameaça da história do sector apícola mundial. Este parasita beneficia de condições favoráveis do ambiente da colónia para o seu próprio desenvolvimento e reprodução, debilitando a abelha e a colmeia, tornando-a mais suscetível a outras doenças [1]. A Varroa tem vindo a desenvolver mecanismos de resistência a alguns dos tratamentos ...
A dinâmica da atividade apícola em Portugal tem-se revelado forte e progressiva nos últimos anos, surgindo novos apicultores e um crescente número de apiários. Atualmente este setor está consolidado, em particular na produção de mel. No entanto, esta quase exclusividade na produção pode provocar uma dependência perigosa da oscilação dos mercados internacionais, antecipando-se a curto prazo, dificuldades na sust...
Pinewood nematode (PWN), Bursaphelenchus xylophilus, is the causal agent of pine wilt disease, a serious threat to global forest populations of conifers, especially Pinus spp. A time-course study of the essential oils (EOs) of 2-year-old Pinus halepensis, Pinus pinaster, Pinus pinea and Pinus sylvestris following inoculation with the PWN was performed. The constitutive and nematode inoculation induced EOs compo...
Porquê? – identificação do problema - a actividade apícola nacional comporta-se como uma “monocultura” - rendimentos sujeitos à flutuabilidade dos mercados e do clima. Foco: - Diversificar a produtividade - Aumentar a rentabilidade - Garantir a sustentabilidade
A Varroa destructor é um ácaro ectoparasita da abelha melífera e agente causal da varroose, doença que pode levar à morte das abelhas. Sendo parasitas, estes ácaros requerem larvas imaturas de abelhas para garantir a procriação e abelhas adultas para a sua sobrevivência. Durante uma fase especifica do seu desenvolvimento, as larvas de abelhas produzem semioquímicos voláteis que estimulam as abelhas obreiras a f...
The antioxidant and antiproliferative activities of the essential oils from Thymbra capitata and Thymus species grown in Portugal were evaluated. Thymbra and Thymus essential oils were grouped into two clusters: Cluster I in which carvacrol, thymol, p-cymene, α-terpineol, and γ-terpinene dominated and Cluster II in which thymol and carvacrol were absent and the main constituent was linalool. The ability for sca...