1,721,044 research outputs found

    Prospective Primary Teachers Education on DC Electrical Circuits

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    Prospective Primary Teachers (PPT) education requires different kinds of integrated activities to produce competence in building learning environments and, in particular, to produce conceptual change from the common ideas to the scientific one. Implicit conceptual knots of pupils are often present in PPT ideas on phenomena. Test in/out and research-based proposals as formative tools for Pedagogical Content Knowledge (PCK) seem useful to identify the learning knots of specific topics and support professional development of PPT. An in–out-test on DC electrical circuits was developed, also using the documentation of research with 7–12 year old students and administrated before and after a formative module based on research-based paths. The test-in stimulated reflection on the conceptual knots highlighted in the literature and the learning gain of the formative module emerged in test-out data analysis offering guidelines for PPT pre-service education

    Le figure del comporre

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    Testo critico-teorico sul lavoro dell'architetto Gianni Braghieri. Espone alcune peculiarità del suo modo di intendere il progetto e la sua collocazione nel panorama dell'architettura italiana. Sono messe in evidenza la ricerca di Braghieri e i prioncipi compositivi che sottendono il suo modo di intendere l'architettura e la città. Una sintesi efficace del comporre di Braghieri è esemplificata dalla serie di "architetture di invenzione" una sorta di catalogo-archivio di architetture che esempificano il suo ambito di ricerca e culturale e il suo fare ptrogettuale

    The Apaguen los Mecheros campaign: Supporting climate justice in the Amazonian cities of Ecuador by estimating the health risks of gas flaring

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    On 26 January 2021, the Court of Nueva Loja banned oil-related gas flaring (GF) activities in the Ecuadorian Amazon Region (EAR), establishing a term of 18 months for GF sites ‘near populated centres’ and until 2030 for those remaining. However, it is still unclear how the ruling will be applied. The present study investigates the impact of GF sites on Amazonian settlements to support the application of the ban. This research is part of the Extreme Citizen Science process carried out by the Apaguen los Mecheros campaign—one of the main claimants in the trial. To estimate the impacts on populated centres and four Amazonian cities, literature data on GF impacts were used to create three risk scenarios: very high-risk scenarios (VHR) within 0.65 km, high-risk scenarios (HR) within 2.25 km and moderate-risk scenarios (MR) within 5 km. The results highlighted that 294 of 295 GF sites affect at least one populated centre in the MR and should thus be shut off. Additionally, 92 populated centres are affected in the VHR, 318 populated centres are affected in the HR and 711 populated centres are affected in the MR, while 180 populated centres are affected simultaneously by 6–18 GF sites in the MR. The results also show that 99,918 people in Amazonian cities may be currently affected by the MR, and more than 12,000 are affected in VHR areas. By applying different metrics found in literature, the research provides the first assessment of the risk posed to the health of local communities for GF in the EAR. The results are being used from members of campaign in the trial, showing how participatory processes can support the grassroots and indigenous movements taking action to shape just futures

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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