3122035 documents found, page 311877 of 312204
Crenças, saberes e práticas de professores: investigar para transformar
Martins, Cristina; Sanches, Angelina; Mesquita, Cristina; Santos, Graça; Freire-Ribeiro, Ilda; Sousa, João Sérgio Carvalho; Ribeiro, Maria do CéuO projeto Estudo sobre as Crenças, Saberes e Práticas dos Professores, terminado em abril de 2021, foi realizado no âmbito do Plano Integrado e Inovador de Combate ao Insucesso Escolar da Comunidade Intermunicipal das Terras de Trás-os-Montes (CIM-TTM). Teve como principal objetivo compreender as crenças, saberes e práticas dos professores e das lideranças escolares dos onze agrupamentos de escolas da CIM-TTM, ...
Performance of three mechanical harvesting systems for olives in Portugal
Almeida, Arlindo; Peça, José; Pinheiro, Anacleto; Dias, António; Santos, Luís S.S.; Reynolds, Domingos; Lopes, JoãoThree mechanical harvesting systems for olives have been tested in field trials in the two main Portuguese regions of olive production: Trás-os-Montes and Alentejo. These tests took place in traditional olive orchards with 100 to 150 trees per hectare. In the three systems, olives were harvested with the same trunk shaker and were collected manually (system I); with a tractor mounted rolling canvas (system II);...
Numerical validation of the experimental cyclic response of RC frames
Braz-César, Manuel; Oliveira, Daniel V.; Barros, RuiIn this paper is estimated the numerical cyclic response of RC frames with and without masonry infill’s through a simplified nonlinear analysis using a commercial finite element method (FEM) package. The numerical model is based on the experiments carried out in the National Laboratory of Civil Engineering (LNEC) and the numerical and experimental results are compared to assess the accuracy of the simplified an...
Targeting excessive free radicals with peels and juices of citrus fruits: grape...
Guimarães, Rafaela; Barros, Lillian; Barreira, João C.M.; Sousa, Maria João; Carvalho, Ana Maria; Ferreira, Isabel C.F.R.A comparative study between the antioxidant properties of peel (flavedo and albedo) and juice of some commercially grown citrus fruit (Rutaceae), grapefruit (Citrus paradisi), lemon (Citrus limon), lime (Citrus aurantiifolia) and sweet orange (Citrus sinensis) was performed. Different in vitro assays were applied to the volatile and polar fractions of peels and to crude and polar fraction of juices: 2,2-dipheny...
Real-time visual feedback technology in support of a didactic voice tuning system
Teixeira, João Paulo; Leão, Izabela RibeiroPitch training is an important exercise for classical singers. This paper presents a Visual Feedback Technology (VFT) time system to improve pitch tuning. The objective is to present the developed helpful tool that allows in a didactic way to tune the voice and show the user the error due to the comparison between the voice produced and the target frequency of the notes along the melody. The voice signal acquis...
Isolation and analysis of lip2 gene from Trichoderma harzianum
Vaz, Madalena; Belo, Hélio; Jorge, Lurdes; Gonzalez, Francisco J.; Monte, Enrique; Choupina, AltinoTrichodorma spp. covers a group of fungi extremely common in soils of all climatic areas. These fungi arc efficient enzyme producers, with industrial applications, or in nature, involved in the degradation of the coli wall of the phytopathogens as well as in the degradation of other fungi, organic matter and nutrients secreted by roots.
Biologia da reprodução das plantas com flor
Aguiar, Carlos; Aguiar, CarlosA sexualidade das plantas foi reconhecida e documentada, pela primeira vez e de forma clara, pelo médico e botânico alemão Rudolf Camerarius (1665-1721), num ensaio publicado em 1694, intitulado De Sexu Plantarum Epistola. Nesta obra pioneira, Camerarius demonstrou experimentalmente que os estames (órgãos masculinos) e os pistilos (órgãos femininos) das flores são intervenientes essenciais e indispensáveis na r...
RFID-Based Smart Climate Control in Student Residences: A Personalized and Ener...
Fábio Paulo; Oliveira, Pedro Filipe; Matos, PauloThe integration of smart technologies into residential spaces has opened new possibilities for enhancing user comfort and energy efficiency. This paper presents the development of a smart climate control system for student residences, leveraging RFID (Radio Frequency Identification) technology and a mobile application to personalize environmental settings based on individual user preferences and presence. In th...
Managing soils for mitigation and adaptation of rainfed olive trees to climate ...
Correia, Carlos M.; Martins, Sandra; Silva, Ermelinda; Brito, Cátia; Pinto, Luís; Moutinho-Pereira, José; Arrobas, Margarida; Rodrigues, M.A.The olive sector has an important economic, social, cultural and ecological relevance in the Mediterranean region, where tillage still is a generalized practice, although the recommendations of UE policy for a more sustainable agriculture. In fact, tillage has negative side-effects, including increased soil erosion and high labor and fuel requirements, and relevant changes on soil quality indicators, as bulk de...
A génese do plano oficial de contabilidade para os serviços de saúde (POCSS/80)...
Leite, Joaquim; Rodrigues, Lúcia LimaO novo institucionalismo foi o enquadramento teórico da presente investigação cujo objetivo foi compreender aprofundadamente a génese do Plano Oficial de Contabilidade para os Serviços de Saúde (POCSS/80) português, no período histórico 1954-1979, através de uma metodologia de investigação histórica. Quanto aos principais resultados obtidos, no período 1954-1974, as regras criadas pelo poder político para contr...