89,376 research outputs found
From beliefs to practices: the video-analysis methodologies to observe the formative assessment in classroom
No full textObservation is a fundamental tool to help in-training teachers to ‘start from practice’ (Danielson, 2007). Observation draws attention to empirical data made of ‘actions and behaviour’ in an actual framework. In this way teachers are able to compare the beliefs they have with empirical data and use them to formulate and reformulate new beliefs.
Obviously, knowing the observations’ objects and criteria is a fundamental condition to get teachers to be actively involved in a virtuous training cycle. We speak for a training cycle in which the teachers themselves can analyse their own practices and the practices of others teachers, changing their point of view and modifying their ‘routinely practices’.
The use of video-analysis for teacher training (Ferretti & Vannini, 2017) goes hand in hand with in classroom systematic observation and with the observation of teacher behaviour especially.
Video analysis urges teachers to "see" what is happening in the classroom, and in particular to focus on teacher assessment behaviours that have a positive impact on learning outcomes. Specifically, three types of core teacher behaviour related to formative assessment and teaching individualization are highlighted: how it involves students, using questions that create opportunities for students to intervene and respond (Kern & Clemens, 2007); how to use the modelling behaviour; how it communicates formative feedback.
In this sense, video analysis follows a very similar method to that the one used in the research experience FAMT&L: the aim is to draw the in training teachers’ attention to the details of those behaviours that are more related to educational effectiveness
FAMT&L: a Teacher Professional Development Research
No full textThe term "Ricerca-Formazione (R-F)" is used in the Italian educational debate, although it has not acquired a shared definition among the various scientific currents. At international level, there is no real literal translation. The conceptual translation in English language could be “Teacher Professional Development Research”.
The term R-F refers to a not well defined concept within the scientific debate in education; it can be traced back to different research traditions. First of all, the R-F refers its origin to the participating research (Mantovani, 1998) and to the more structured model of the Action-Research (Lewin, 1946), where the key elements are the sharing of researchers and actors and their commitment to change and social action. In the second instance, the concept of R-F was used in the current called Formative Educational Evaluation (Becchi, Bondioli, 1994; Bondioli, Ferrari, 2004) that considers the evaluation (of the contexts, curricula, programs) as an opportunity for self-assessment of actors actively involved in the processes and for their professional growth. Furthermore, in several cases, R-F is also considered as a process of individual professional growth (eg through autobiographical analysis tools).
Within the CRESPI Center (Center of educational research on teacher professionalism http://crespi.edu.unibo.it/) of the University of Bologna, a theoretical idea of R-F has been discussed and defined starting from empirical research experiences carried out by CRESPI researchers in the field of teacher professionalism. The path of the FAMT&L Project can be related to this idea of R-F
Ilyograpsus vannini Sawada, Hosogi & Sakai 2005
No full textIlyograpsus vannini Sawada, Hosogi & Sakai, 2005 Ilyograpsus paludicola — Vannini & Valmori, 1981: 77, Fig. 10C. Not Ilyograpsus paludicola (Rathbun, 1909) Ilyograpsus vannini Sawada et al., 2005: 853 (in part), Figs. 1A–C, 3A, 5B, D, F. Name bearing type. – Holotype: female (4.0 × 4.4 mm) (Museuo Zoologico, University of Florence 664), Abo, Somalia, coll. M. L. Azzaroli. Not available for study (see Remarks). Material examined. – None. Remarks. – As discussed above, the paratypes of Ilyograpsus vannini from Melita Bay, Gulf of Zula, Ethiopia (RMNH D 26501), are here identified with I. rhizophorae. Unfortunately, the holotype and one paratype, both ovigerous females, from Abo, Somalia, were not available to us. We recognize the present taxon as a valid species for the time being, because of the differences seen in the shape of the carapace and the development of the anterolateral teeth on the carapace (see “ Remarks ” of I. rhizophorae). Sawada et al. (2005) cited Karachi, Pakistan, in the distribution of I. vannini, although they did not give any evidence.Published as part of Komai, Tomoyuki & Wada, Keiji, 2008, A Revision Of The Estuarine Crab Genus Ilyograpsus Barnard, 1955 (Crustacea: Decapoda: Brachyura: Macrophthalmidae), With Descriptions Of A New Genus And One New Species, pp. 357-384 in Raffles Bulletin of Zoology 56 (2) on page 365, DOI: 10.5281/zenodo.534071
Why formative assessment in Mathematics?
No full textThis chapter analyses the concept of FA in math, starting from the debate on international literature until the definition of the FA construct used in the FAMT&L Group. In particular, the authors analyse the aspects of the effectivness of the FA in the student learning
La ricerca-formazione per l’innovazione della didattica universitaria
No full textQuesto contributo presenta, in sintesi, il progetto di sistema per l’innovazione della didattica universitaria che l’Università di Bologna sta realizzando. Si tratta di un progetto ampio, orientato dall’idea che la formazione universitaria debba prioritariamente promuovere, per tutti gli studenti e le studentesse, competenze intese come entità complesse, che integrano le conoscenze, le abilità, gli elementi metacognitivi, le competenze trasversali strategiche per l’apprendimento e per la vita.
Il progetto pone al centro le competenze didattiche del docente e si propone di incidere su molteplici livelli e dimensioni dei processi di insegnamento-apprendimento, in una prospettiva diacronica. In particolare, il progetto trae la sua cornice teorico-metodologica dal modello della Formative Educational Evaluation (Scriven, Stufflebeam, Stake, Lincoln, House e Howe in Kellaghan e Stufflebeam, 2003; Bondioli, Ferrari, 2004) e, in particolare, della Ricerca-Formazione intesa in senso valutativo (Betti, Vannini, 2013; Betti, Davila, Martínez, Vannini, 2015, Asquini (CRESPI) 2018). L’applicazione del modello ai contesti didattici dell’Università di Bologna ha potuto beneficiare di due esperienze pilota di ricerca valutativa realizzate all’interno dell’Ateneo con i docenti dei Corsi di laurea in “Infermieristica” e in “Economics and Finance” (CLEF); nella logica della formative educational evaluation, il modello bolognese contempla azioni valutative orientate specificamente in senso formativo (di analisi e progressiva ri-progettazione delle azioni didattiche supportata da interventi formativi ad hoc rivolti ai docenti) che promuovano nei docenti capacità di riflessione e autoanalisi delle proprie prassi didattiche, specifiche azioni di formazione alla didattica attraverso metodologie innovative e l’uso delle tecnologie
Study of U-234(n,f) Resonances Measured at the CERN n_TOF Facility
No full textWe present the analysis of the resolved resonance region for the U-234(n,f) cross section data measured at the CERN n_TOF facility. The resonance parameters in the energy range from 1 eV to 1500 eV have been obtained with the SAMMY code by using as initial parameters for the fit the resonance parameters of the JENDL-3.3 evaluation. In addition, the statistical analysis has been accomplished, partly with the SAMDIST code, in order to study the level spacing and the Mehta-Dyson correlation
Low-level laser therapy and vibration therapy for the treatment of localized adiposity and fibrous cellulite
No full textIntroduction: In recent years, there has been an upsurge in the application of low-level laser therapy in various medical diseases. Additionally, vibration therapy is a new and effective measure to prevent muscular atrophy and osteoporosis, along with some general health-related beneficial effects of exercise on skeletal muscles such as improvement of endothelial function and an increased enzyme capacity of energy metabolism. The aim of this study was to evaluate the application of a 635 nm and 0.040W exit power per multiple diode laser in combination with vibration therapy for the application of non-invasive reduction of circumference in patients with localized adiposity and cellulite. Methods: The study enrolled men and women (N = 33) aged 18-64 years with localized adiposity or fibrous cellulite. The evaluation parameters were: photographic evaluation, perimetric evaluation, blood tests, ecographic evaluation, histological evaluation, and subjective and objective tests. Results: The results produced were statistically analyzed and resulted in a significant reduction of fat thickness when compared to the measurement prior to the treatment (P<0.0001). Moreover, subjective and objective tests, as well as ecographic and histological evaluations, confirmed the reduction of fat thickness. Conclusion: In this study we have demonstrated the safety and efficacy of the combination between low-level laser therapy and vibration therapy for the resolution of localized adiposity and fibrous cellulite. © The Author(s) 2013
Overexpression of Osmyb4 enhances compatible solute accumulation and increases stress tolerance of arabidopsis thaliana
No full textIn this paper, we report the metabolic and molecular changes in response to cold and drought induced in Osmyb4 transgenic Arabidopsis thaliana compared with the wildtype (WT). The rice Osmyb4 gene codes for a transcription factor (Myb4) induced by cold treatment and, in Arabidopsis transgenic plants, improves cold and freezing tolerance [Vannini C, Locatelli F, Bracale M, Magnani E, Marsoni M, Osnato M, Mattana M, Baldoni E, Coraggio I (2004) Plant J 37: 115-127]. Here, we report the ability of Myb4 to induce also drought tolerance in Arabidopsis transgenic plants. By the use of nuclear magnetic resonance (NMR) and enzymatic assays, we showed that several compatible solutes (glucose, fructose, sucrose, proline, glycine betaine and sinapoyl malate) accumulate in higher amount in Osmyb4-overexpressing plants with respect to the WT, both under normal and stress conditions. Considering proline, we also found that in transgenic plants the levels of the mRNAs coding for Δ1- pyrroline-5-carboxylate synthase (EC not assigned) and for Δ1- pyrroline-5-carboxylate dehydrogenase (EC 1.5.1.12) were higher and lower, respectively. The constitutive activation of several stress-inducible pathways and different kinetics in the accumulation of several metabolites, in Myb4 transgenic plants, may represent an advantage to prepare plants to face the stress condition. Moreover, these results taken together suggest that Myb4 integrates the activation of multiple components of stress response
A design method for DR-stabilized MESFET oscillators
Get PDFIn this paper a method is proposed for the design of DR-stabilized MESFET oscillators where several diferent design objectives, associated both to stability and output power, can simultaneously be taken into account. First, stability and self-starting capability of an oscillator are related to suitable performance indexes which are defined in the paper. Then an efficient procedure aimed at searching for an optimal compromise between opposing design requirements is described. The validity of the whole procedure and the performance indexes introduced has been investigated by considering the design of a microstrip parallel-feed back DR oscillator using a medium power GaAs MESFET
A mathematical modelling approach for the large-signal performance prediction of microwave electron devices
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