201 research outputs found
Atividades pedagógicas atendendo à multiculturalidade para enriquecer o processo de ensino aprendizagem de uma turma de 11º ano de Economia A
Relatório da Prática de Ensino Supervisionada, Mestrado em Ensino da Economia e Contabilidade, 2022, Universidade de Lisboa, Instituto de EducaçãoEste trabalho académico é um Relatório elaborado no contexto da Prática de
Ensino Supervisionada (RPES) do Mestrado em Ensino de Economia e de
Contabilidade, através do qual se pretende analisar as Atividades pedagógicas
realizadas, que atenderam à multiculturalidade para enriquecer o processo de ensino
aprendizagem de uma turma de 11º ano de Economia A, usando como modelo
pedagógico a teoria vygotskiana para as práticas de ensino-aprendizagem.
A prática de ensino supervisionada (PES) na disciplina de Economia A
incidiu sobre as unidades didáticas 10 e 11 realizadas entre novembro e maio do ano
letivo 2021-2022.
A recolha de dados foi realizada por observação direta participante (método
próprio da antropologia, mas muito utilizado em ciências da educação) através do
diário de campo, de uma grelha de observação de comportamentos e atitudes dos
alunos em espaço de aula e complementado por um inquérito realizado pelos alunos
e pela professora cooperante para avaliação das metodologias utilizadas.
De acordo com os resultados obtidos a partir da observação participante das
práticas pedagógicas, utilizando uma abordagem multicultural baseada na psicologia
histórico-cultural de Vygotsky, podemos concluir que este modelo apresenta eficácia
na prática pedagógica relativamente à integração cultural e psico-social dos alunos
em turma durante o processo de ensino-aprendizagem.This academic paper is a report prepared in the context of the Supervised
Teaching Practice (SEP) of the Master's in Teaching of Economics and Accounting,
through which we intend to analyse the pedagogical activities carried out, which took
into account multiculturalism to enrich the teaching-learning process of a class of
11th grade of Economics A, using the Vygotskian theory for teaching-learning
practices as a pedagogical model.
The supervised teaching practice (PES) in the subject of Economics A
focused on didactic units 10 and 11 carried out between November and May of the
2021-2022 school year.
Data collection was carried out by direct participant observation
(anthropology's own method, but widely used in educational sciences) through the
field diary, a grid for observation of students' behaviour and attitudes in class space
and complemented by a survey conducted by the students and the cooperating
teacher to evaluate the methodologies used.
According to the results obtained from the participant observation of the
pedagogic practices, using a multicultural approach based on the historical-cultural
psychology of Vygotsky, we can conclude that, this model seems to be effective in
the pedagogic practice in what students’ cultural and psycho social integration in
class during the teaching-learning process is concerned
From Popular to Contemporary: a Review on Portuguese Vernacular Architecture
This research is based on the main principle that history repeats itself. Therefore, it can create interest in subjects that, at first sight, may look anachronistic. The authors recall the growing position towards architectural solutions, that take reference from the past, and retrace the studies perceived by the architects of the “Inquérito à Arquitectura Regional Portuguesa” (Survey on Regional Portuguese Architecture) of 1955/57. Since they were looking for a middle way between government impositions and the radicalism of the International Style, the results influenced not only their individual designs but also acquired a pioneer status, thus raising many new questions.info:eu-repo/semantics/publishedVersio
Environmental remediation promoted by silver nanoparticles biosynthesized by eucalyptus leaves extract
A simple and low-cost green synthesis method was optimized to prepare stable silver nanoparticles (AgNP) using aqueous Eucalyptus globulus leaves extract. This green method allows to obtain AgNP with spherical morphology and variable size around 25 nm, and it is dependent of the reaction temperature and concentration of the plant extract. AgNP stability was followed during 3 months by zeta potential measurements and a negative zeta range from 30.7 to 33.6 was determined. Biogenic-stabilized AgNP exhibited dual-functional properties as effective in environmental remediation with bacterial growth inhibition and dye photodegradation. Staphylococcus aureus and Escherichia coli were tested for antibacterial activity, and considerable inhibitory activity was found. High photocatalytic degradation of indigo carmine (IC) dye was performed in the presence of the AgNP as catalysts under sunlight irradiation. The degradation efficiency after 2 h of reaction was 37 %, 83 % and 98 % in the presence of UV light, visible light and sunlight irradiation, respectively. The germination of corn kernels test was used to determine the toxicity of the treated IC solutions and the results showed low toxicity after the photodegradation process.V.R. thanks to Fundação para Ciência e Tecnologia, FCT (Portugal) for her Ph.D. grant (SFRH/BD/141073/2018). P⋅F-S. would like to express their gratitude to the Spanish Ministry of Economy and Competitiveness for their postdoctoral grant (Reference FJC2021-046978-I). This research work has been funded by FCT/MCTES (PIDDAC) over the projects: CQ-UM (UID/QUI/0686/2020), CEB (UIDB/04469/2020) and LABBELS (LA/P/0029/2020), and project BioTecNorte (operation NORTE-01-0145-FEDER-000004), supported by the Northern Portugal Regional Operational Program (NORTE 2020), under the Portugal 2020
Partnership Agreement, through the European Regional Development Fund (ERDF).info:eu-repo/semantics/publishedVersio
Translation and validation of Convergence Insufficiency Symptom Survey (CISS) to Portuguese - psychometric results
Purpose: Translate and adapt the Convergence Insuficiency Symptom Survey (CISS) questionnaire to the Portuguese language and culture and assess the psychometric properties of the translated questionnaire (CISSvp). Methods: The CISS questionnaire was adapted according to the methodology recommended by some authors. The process involved two translations and back-translations performed by independent evaluators, evaluation of these versions, preparation of a synthesis version and its pre-test. The final version (CISSvp) was applied in 70 patients (21.79 ± 2.42 years) students in higher education, and at two different times, by two observers, to assess its reliability. Results: The results showed good internal consistency of the CISSvp (Cronbach's alpha - α=0.893). The test re-test revealed an average of the differences between the first and second evaluation of 0.75 points (SD ± 3.53), which indicates a minimum bias between the two administrations. The interrater reliability assessed by intraclass correlation coefficient ranged from 0.880 to 0.952, revealing that the CISSvp represents an appropriate tool for measuring the visual discomfort associated with near vision tasks with a high level of reproducibility. Conclusions: The CISS Portuguese version, showed good psychometric properties and has been sown to be applicable to the Portuguese population, to quantify the visual discomfort associated with near vision, in higher education students
Tracking the Origin of a Rabbit Haemorrhagic Virus 2 Outbreak in a Wild Rabbit Breeding Centre in Portugal; Epidemiological and Genetic Investigation
As key prey, the wild rabbit downsize constitutes a major drawback on the endangered Iberian lynx (Lynx
pardinus) re-introduction in the Iberia. Several captive breeding units mostly located in Alentejo, endeavour the wild
rabbit repopulation of depleted areas assigned for the lynx re-introduction.
Here we report an RHDV2 outbreak that occurred in early 2016 in a wild rabbit captive breeding unit located
in Barrancos municipality. The estimated mortality rate between March and April 2016 was approximately 8.67%.
Anatomopathologic examination was carried out for 13 victimized rabbits. Molecular characterization was based on
the complete vp60 capsid gene.
The 13 rabbit carcasses investigated showed typical macroscopic RHD lesions testing positive to RHDV2-
RNA. Comparison of the vp60 nucleotide sequences obtained from two specimens with others publically available
disclosed similarities below 98.22% with RHDV2 strains originated in the Iberia and Azores and revealed that the two
identical strains from Barrancos-2016 contain six unique single synonymous nucleotide polymorphisms.
In the phylogenetic analysis performed, the Barrancos-2016 strains clustered apart from other known strains,
meaning they may represent new evolutionary RHDV2 lineages. No clear epidemiological link could be traced for
this outbreak where the mortalities were lower compared with previous years. Yet, network analysis suggested a
possible connection between the missing intermediates from which the strains from Barrancos 2013, 2014 and 2016
have derived. It is therefore possible that RHDV2 has circulated endemically in the region since 2012, with periodic
epizootic occurrences.
Still, six years after its emergence in wild rabbits, RHDV2 continues to pose difficulties to the establishment of
natural wild rabbit populations that are crucial for the self-sustainability of the local ecosystems
Search for the standard model Higgs boson produced in association with top quarks and decaying into a pair in collisions at = 13 TeV with the ATLAS detector
A search for the standard model Higgs boson produced in association with a top-quark pair, tt¯H, is presented. The analysis uses 36.1 fb-1 of pp collision data at s=13 TeV collected with the ATLAS detector at the Large Hadron Collider in 2015 and 2016. The search targets the H→bb¯ decay mode. The selected events contain either one or two electrons or muons from the top-quark decays, and are then categorized according to the number of jets and how likely these are to contain b-hadrons. Multivariate techniques are used to discriminate between signal and background events, the latter being dominated by tt¯+jets production. For a Higgs boson mass of 125 GeV, the ratio of the measured tt¯H signal cross-section to the standard model expectation is found to be μ=0.84-0.61+0.64. A value of μ greater than 2.0 is excluded at 95% confidence level (C.L.) while the expected upper limit is μ<1.2 in the absence of a tt¯H signal.Peer Reviewe
Performance of the ATLAS Track Reconstruction Algorithms in Dense Environments in LHC Run 2
With the increase in energy of the Large Hadron Collider to a centre-of-mass energy of 13 for Run 2, events with dense environments, such as in the cores of high-energy jets, became a focus for new physics searches as well as measurements of the Standard Model. These environments are characterized by charged-particle separations of the order of the tracking detectors sensor granularity. Basic track quantities are compared between 3.2 fb of data collected by the ATLAS experiment and simulation of proton–proton collisions producing high-transverse-momentum jets at a centre-of-mass energy of 13 . The impact of charged-particle separations and multiplicities on the track reconstruction performance is discussed. The track reconstruction efficiency in the cores of jets with transverse momenta between 200 and 1600 is quantified using a novel, data-driven, method. The method uses the energy loss, , to identify pixel clusters originating from two charged particles. Of the charged particles creating these clusters, the measured fraction that fail to be reconstructed is and for jet transverse momenta of 200–400 and 1400–1600 , respectively.Peer Reviewe
Measurements of differential cross-sections of highly boosted top quarks decaying to all-hadronic final states in collisions at TeV using the ATLAS detector
Measurements are made of differential cross-sections of highly boosted pair-produced top quarks as a function of top-quark and tt¯ system kinematic observables using proton-proton collisions at a center-of-mass energy of s=13 TeV. The data set corresponds to an integrated luminosity of 36.1 fb-1, recorded in 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider. Events with two large-radius jets in the final state, one with transverse momentum pT>500 GeV and a second with pT>350 GeV, are used for the measurement. The top-quark candidates are separated from the multijet background using jet substructure information and association with a b-tagged jet. The measured spectra are corrected for detector effects to a particle-level fiducial phase space and a parton-level limited phase space, and are compared to several Monte Carlo simulations by means of calculated χ2 values. The cross-section for tt¯ production in the fiducial phase-space region is 292±7(stat)±71(syst) fb, to be compared to the theoretical prediction of 384±36 fb.Peer Reviewe
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