32 documents found, page 1 of 4
Effect of Foliar Application of Nitrogen-Fixing Microorganisms and Algae Extrac...
Arrobas, Margarida; Roque, João; Martins, Sandra; Brito, Cátia; Correia, Carlos Manuel; Rodrigues, ManuelThis study presents the results of two on-farm trials evaluating the efficacy of a nitrogen (N)-fixing inoculant (Methylobacterium symbioticum) applied as a foliar spray to provide N to hazelnut (Corylus avellana L.) and walnut (Juglans regia L.) trees. In the hazelnut trial, a factorial design was employed with soil N application at three levels [0 (N0), 40 (N40), and 80 (N80) kg ha−1] and foliar application o...
A Spray Foliar Containing Methylobacterium symbioticum Did Not Increase Nitroge...
Rodrigues, Manuel Ângelo; Lopes, João Ilídio; Martins, Sandra; Brito, Cátia; Correia, Carlos Manuel; Arrobas, Margarida; Rodrigues, ManuelBiological nitrogen (N) fixation has been advocated in agricultural fields due to being considered a more sustainable way to introduce N into agrosystems than industrial N fertilizers. In this study, a foliar spray inoculant containing the microorganism Methylobacterium symbioticum was applied. This microorganism is known for fixing N in the phyllosphere, regardless of the cultivated species. This study was con...
Sewage sludge showed high agronomic value, releasing nitrogen faster than farmy...
Dimande, Paulo; Arrobas, Margarida; Correia, Carlos Manuel; Rodrigues, ManuelThe use of fertilizers in agriculture, particularly organic fertilizers such as sewage sludge, is a key research priority due to its impacts on crop productivity, production costs, environmental risks and the push for a more circular economy. This study, conducted in Bragan & ccedil;a, northeastern Portugal, focused on forage maize during the 2022 and 2023 growing seasons. Eight fertilization treatments were es...
Lexicon annotation with LLM: a proof of concept with ChatGPT
Marcondes, Francisco Supino; Gala, Adelino de C.O.S.; Rodrigues, Manuel; Almeida, J. J.; Novais, PauloLexicon annotation is a critical yet time-consuming task that can hold back the progress of language-intensive projects. This paper explores the potential of Large Language Models (LLMs) to automate lexicon annotation, traditionally performed by humans. We present a proof of concept by evaluating ChatGPT's performance on annotating VADER's sentiment lexicon. Our findings demonstrate that ChatGPT achieves fair p...
Highly-selective optical filter for NADH fluorescence detection in multiphoton ...
Freitas, Ruben; Rodrigues, Manuel; Pimenta, Sara Filomena Ribeiro; Belsley, M.; Correia, J. H.; Maciel, Marino Jesus CorreiaColorectal cancer (CRC) is a pressing global health concern, emphasizing the need for early detection tools. In this study an optical filter for precise detection of nicotinamide adenine dinucleotide (NADH) fluorescence via two-photon excitation fluorescence (TPEF) was developed. Fabricated with silicon dioxide and titanium dioxide thin films in a Fabry-Perot structure, the filter achieved a peak transmittance ...
Fertilização do castanheiro
Arrobas, Margarida; Rodrigues, ManuelA falência do setor dos cereais de inverno em todo o interior norte e centro de Portugal, fez do castanheiro (Castanea sativa Mill.) uma das únicas fontes de receita dos agricultores nas zonas de maior altitude onde o cultivo da vinha e do olival não são viáveis. O preço favorável da castanha dos últimos anos tem focado a atividade agrícola nesta espécie e levado a alguma intensificação cultural. Apesar dos pro...
Fresno test to measure evidence-based practice knowledge and skills for Portugu...
Cardoso, Daniela; Couto, Filipa; Cardoso, Ana Filipa; Louçano, Cristina; Rodrigues, Manuel; Pereira, Rui Pedro Gomes; Parola, Vítor; Coelho, AdrianaBackground: The Fresno Test was originally identified as an instrument to assess evidence-based practice knowledge and skills through cognitive testing and performance assessment in medical students. Further studies have been recommended to establish the measurement properties of the Fresno Test in different learner populations. Objectives: To perform a cross-cultural adaptation of the Fresno Test for Portugues...
HORUS: An emotion recognition tool
Teixeira, André; Rodrigues, Manuel; Carneiro, Davide Rua; Novais, PauloEmotion is an essential part of what means to be human, but it is still disregarded by most technical fields as something not to be considered in scientific or engineering projects. However, the understanding of emotion as an aspect of decision-making processes and of modelling of human behavior is essential to create a better connection between humans and their tools and machines. With this work we focus on th...
Tradução, adaptação cultural e validação do Meaning in Suffering Test para port...
Kraus, Teresa; Capela, Susana; Rodrigues, Manuel; Dixe, Maria dos AnjosAs diferenças paradoxais identificadas entre a forma como as pessoas experienciam a dor, independente da sua intensidade, e o sofrimento a ela associado, relacionam-se com os sistemas de crenças e valores.
Translation and cross-cultural adaptation of evidence-based practice instrument...
Cardoso, Daniela; Coelho, Adriana; Louçano, Cristina; Parola, Vítor; Rodrigues, Manuel; Fineout-Overholt, Ellen; Apóstolo, JoãoBackground: The implementation of evidence-based practice (EBP) in clinical contexts is recommended due to its positive impact on health, but it remains under the desirable. The training of undergraduate nursing students in the use of EBP is crucial, and, for that, there must be valid and reliable measures of EBP learning. Objective: To translate and to cross-cultural adapt into European Portuguese of the EBP B...