Repositório Científico do Instituto Politécnico de Santarém

About the Repository

The Scientific Repository of the Santarém Polytechnic University - RCIPS, aims to preserve, disseminate and provide access to scientific publications produced by the Institute's academic community.
The Repository is part of IPSantarém Open Science ecosystem, and is also part of Portugal Open Access Scientific Repository - RCAAP.

Guides and Tutorials

Sherpa ROMEO, Consulte as Políticas de copyright e de auto-arquivo de editores.

Institutional Documents

Política Institucional de Acesso Aberto do Instituto Politécnico de Santarém ( Despacho 146/2018). Consulte AQUI.

News

O Instituto Politécnico de Santarém assinou a Declaração de Berlim, tendo ficado registado no dia 21.10.2010, com o nº 292.

Email repositorio@ipsantarem.pt

Recent Submissions

Impacto económico da implementação do patient blood management em pacientes submetidos a cirurgia colorretal

Publication . Salvador, Dora Cristina Ferreira; Rosa, Sérgio

O Patient Blood Management é uma estratégia crucial nos cuidados de saúde, especialmente em pacientes submetidos a cirurgia colorretal. Esta abordagem inovadora visa reduzir transfusões desnecessárias, otimizar a gestão dos componentes sanguíneos e melhorar os desfechos clínicos. O presente estudo analisa o impacto económico da implementação do Patient Blood Management, destacando a redução dos custos hospitalares diretos e indiretos, principalmente através da diminuição do consumo de Concentrado Eritrocitário e do tempo médio de internamento. Os resultados demonstram que o Patient Blood Management contribui significativamente para a sustentabilidade dos serviços hospitalares e para a segurança transfusional, minimizando complicações pós-operatórias. Além das poupanças geradas, esta abordagem enfatiza a necessidade de integrar o Patient Blood Management nos protocolos hospitalares, garantindo uma utilização criteriosa dos recursos sanguíneos. A implementação do Patient Blood Management não só oferece benefícios económicos substanciais, mas também promove uma gestão responsável dos recursos hospitalares, alinhada com as melhores práticas clínicas internacionais.

2025-06-18Master thesis

Open access

Diálogos sobre EaD - reflexões sobre o presente e perspetivas para o futuro

Publication . Barbas, Maria Potes

A Direção de Educação a Distância do Instituto Federal de Brasília (DEaD/IFB) e o Grupo de Pesquisa “Potenciais da EaD para articular teoria e prática nas atividades de ensino e aprendizagem do IFB” estão organizaram o IX Fórum de Educação a Distância que ocorreu nos dias 23, 24 e 25 de novembro de 202 on-line. Este ano o evento teve como objetivo discutir o seguinte tema: "Diálogos sobre a EaD: reflexões sobre o presente e suas lições para o futuro".

2021-11-23Lecture

Open access

Molecular and hydraulic responses of grapevine to water status and phenology under long-term differential irrigation treatments

Publication . Damásio, M.; Pinto, C.; Salguero, J.; Alarcón, M. V.; Deus, J.; David, T. S.; Silvestre, J.; Carvalho, L. C.; Zarrouk, Olfa

Understanding seasonal interactions among hydraulic, chemical and molecular signalling under water deficit is crucial for improving vineyard irrigation strategies under climate change and increasing water scarcity. We aimed to test how irrigation strategies and phenology affect the hydraulic adjustment mechanisms of eight fieldgrown grapevine varieties under different long-term irrigation regimes: Full-irrigated (100 % ETc), deficitirrigation (50 % Full-irrigated), and non-irrigated. Leaf pre-dawn water potential, leaf hydraulic conductivity (Kleaf), stomatal conductance, aquaporin gene expression and hormone content, were assessed at four key phenological stages, from pea-size to post-harvest. Stomatal closure was the earliest water-stress response across genotypes, while hormonal balance differentiated responsive from non-responsive genotypes regarding chemical signalling. Kleaf was primarily driven by phenology, peaking at early stages and declining thereafter. Aquaporin gene expression was both genotype- and phenology-dependent, with high activity during early stages followed by progressive down-regulation, aligned with changes in stomatal conductance and Kleaf and reflecting each variety iso-/anisohydric behaviour. This pattern confirms the role of aquaporins in grapevine hydraulic adjustments and stomatal regulation under decreasing water potentials. Aquaporins and Kleaf showed positive responses to water availability at post-harvest, indicating differential watering benefits among genotypes. Our results emphasize the need for field-phenotyping studies to fine-tune water management strategies in viticulture.

2025-09Research article

Open access

Current context of Cannabis sativa cultivation and parameters influencing its development

Publication . Saragoça, Andreia; Silva, Ana; Varanda, Carla; Materatski, Patrick; Ortega, Alfonso; Cordeiro, Ana; Gama, José

Cannabis sativa L. is a versatile plant with significant medicinal, industrial, and recreational applications. Its therapeutic potential is attributed to cannabinoids like THC and CBD, whose production is influenced by environmental factors, such as radiation, temperature, and humidity. Radiation, for instance, is essential for photosynthetic processes, acting as both a primary energy source and a regulator of plant growth and development. This review covers key factors affecting C. sativa cultivation, including photoperiod, light spectrum, cultivation methods, environmental controls, and plant growth regulators. It highlights how these elements influence flowering, biomass, and cannabinoid production across different growing systems, offering insights for optimizing both medicinal and industrial cannabis cultivation. Studies indicate that photoperiod sensitivity varies among cultivars, with some achieving optimal flowering and cannabinoid production under extended light periods rather than the traditional 12/12 h cycle. Light spectrum adjustments, especially red, far-red, and blue wavelengths, significantly impact photosynthesis, plant morphology, and secondary metabolite accumulation. Advances in LED technology allow precise spectral control, enhancing energy efficiency and cannabinoid profiles compared to conventional lighting. The photoperiod plays a vital role in the cultivation of C. sativa spp., directly impacting the plant’s developmental cycle, biomass production, and the concentration of cannabinoids and terpenes. The response to photoperiod varies among different cannabis cultivars, as demonstrated in studies comparing cultivars of diverse genetic origins. On the other hand, indoor or in vitro cultivation may serve as an excellent alternative for plant breeding programs in C. sativa, given the substantial inter-cultivar variability that hinders the fixation of desirable traits.

2025-07-29Review article

Open access

Plant diseases and sustainable agriculture

Publication . Materatski, Patrick; Vicente, Cláudia; Varanda, Carla; Espada, Margarida

2025-04-10Journal editorial

Open access