188 research outputs found

    Training the design skills based on the Agire educativo paradigm. The laboratories at the Sciences of Education Degree courses (L19)

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    The design is assumed as the ability to adapt the models learned to the context and the situations in an intelligent way and a complex competence within the Agire educativo (Perla & Riva, 2016) since it implies global-analytical approach, clinical intuition and know-how. The article deals with how to train this complex competence in view of the explanatory models – Terzo educativo (Perla, 2016a) and Finalità-Variabili-Percorso (F-V-P) (Rossi & Toppano, 2009) in the specific abductive component of them, and describes the organizational structure as well as the operating devices of the laboratories (EduLabo and Interventions on developmental disabilities) held at the Science of Education Degree courses, at the University of Bari and Giustino Fortunato Open University. In this way, some clarifications regarding the complex nature of the design ability, exemplifications of the didactically educational method as well as arguments on the didactic coordination of the Science of Education Degree courses are offered.Formare l’abilità progettuale alla luce del paradigma dell’agire educativo. I laboratori nei CdL-19 Il lavoro assume la progettazione come capacità di adattare in maniera intelligente modelli appresi in ragione del contesto e delle situazioni e la rilancia come competenza complessa dell’Agire educativo (Perla & Riva, 2016) che implica approccio globale e analitico, intuizione clinica e tecnicalità. L’articolo pone la questione su come formare tale competenza complessa attraverso la ripresa dei modelli esplicativi del Terzo educativo (Perla, 2016) e della Finalità-Variabili-Percorso (F-V-P) (Rossi & Toppano, 2009), nella specifica componente abduttiva, e descrive l’impianto organizzativo nonché i dispositivi operativi dei laboratori (EduLabo e Interventi nelle disabilità dello sviluppo) adottati nei CCdSS Scienze dell’educazione e della formazione dell’Università degli Studi di Bari e Scienze dell’Educazione dell’Università Telematica Giustino Fortunato. Vengono, così, offerti alcuni possibili chiarimenti circa il carattere complesso dell’abilità progettuale, un’esemplificazione di metodo didatticamente educativo nonché argomenti sulla necessità di una regia didattica dei CdL-19

    Agire educativo e trasposizione didattica dei saperi della relazione educativa. Una ricerca co-costruita con gli studenti della L-19 dell’Università degli Studi di Bari Aldo Moro

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    There is a theoretical vacuum within the study of mediation and mediators that develop the educator’s manage skills regards educational and training relations and situational dynamics. However, these are learning outcomes rooted in the theoretical constructs founding pedagogical theory and in the core contents of the L-19 Course. The contri-bution is therefore divided into two parts. In the first part, the Authors reconstruct the reasons for the shortage of empirical research of didactic matrix concerning the transpo-sition of the knowledge of the relationship and educational communication. The second part discusses various aspects of the practice of teaching transposition within the uni-versity training of the socio-pedagogical educator refers to a chosen cultural object and in light of a collaborative research-training carried out in 2019-2020 at the Department of Education Science, Psychology, and Communication of the University Aldo Moro of Bari. The research, here shown in its methodological structure and outcomes, has been carried out with the second year students of L-19 Course, and it allowed to formalize some didactic mediation practices concerning Early Childhood 0-6 professional area. The paper intends to provide a contribution to the ongoing scientific debate on the construction of standards and profiles of competences referred the Law n. 205/2017.Esiste un vuoto teorico nello studio della mediazione e dei mediatori che formano l’edu-catore alle competenze di governo delle dinamiche relazionali e situazionali educative e formative: eppure, si tratta di learning outcomes radicati in costrutti teorici fondativi della teoresi pedagogica e in core contents fondamentali dell’ordinamento della L-19. Alla luce di queste premesse, il contributo è diviso in due parti. Nella prima, le Au-trici ricostruiscono le ragioni della penuria di ricerche empiriche di matrice didattica aventi a oggetto la trasposizione dei saperi della relazione e comunicazione educativa. Nella seconda parte vengono discussi diversi aspetti inerenti alla prassi della trasposizio-ne didattica “interna” nell’ambito universitario della formazione dell’educatore socio-pedagogico in relazione all’oggetto culturale scelto e alla luce di una ricerca-formazione collaborativa realizzata nell’a.a. 2019-2020 presso il Dipartimento di Scienze della for-mazione, Psicologia, Comunicazione dell’Università di Bari Aldo Moro. La ricerca, di cui vengono presentati impianto metodologico e risultati, è stata svolta con gli studenti e le studentesse del secondo anno del Corso L-19 e ha permesso di formalizzare alcune pratiche di mediazione didattica inerenti all’area professionale relativa all’infanzia 0-6. L’articolo intende fornire un contributo al dibattito scientifico in atto sulla costruzione di standard e profili di competenze discendenti dalla L. 205/2017

    SK-ER3 neuroblastoma cells as a model for the study of estrogen influence on neural cells

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    The neuroblastoma SK-ER3 cell line obtained by stable transfection of the human SK-N-BE cell line is proposed as a model for the study of estrogen receptor activity in cells of neural origin, In the SK-ER3 cell line the estrogen receptor, once activated, initiates a differentiation program leading to growth arrest, morphological changes, and acquisition of the dopaminergic phenotype, In the absence of estrogens, this program can be triggered by IGF-I, which can activate the unliganded estrogen receptor via the ras-pathway, It is proposed that this model system might recapitulate the events occurring in vivo during the differentiation of the nervous system and that IGF-I may play an important role in the activation of estrogen receptor at the very early stage of brain development affecting the differentiation of a number of hypothalamic and extrahypothalamic brain regions. (C) 1997 Elsevier Science Inc

    Oligonucleotide squelching reveals the mechanism of estrogen receptor autologous down-regulation

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    Antisense oligos complementary to the 5'-end, but not to the 3'-end, of the estrogen receptor (ER) messenger RNA caused a paradox accumulation of ER protein in MCF-7 cells, The same effect was observed after treatment of the cells with the corresponding sense oligos, The oligos interfering with ER down-regulation were demonstrated to specifically bind the ER with affinities in the nanomolar range. It is, therefore, proposed that the ER up-regulation induced by the oligos might be due to squelching of the ER (or ER-inducible proteins) from their binding site located in the 5'-end of the ER gene. We also report that transcriptionally inactive ER mutants can undergo down-regulation, and that in denaturing gels, the migration profile of ER-oligo and ER-estrogen-responsive element complexes are dissimilar. We, therefore, propose that ER can interact with DNA in different ways and at different binding sites, These observations might have important pharmacological consequences, since specific drugs could be devised to induce the ER conformation necessary to perform only selected tasks of the ER transcriptional repertoire

    COVID-19: viral-host interactome analyzed by network based-approach model to study pathogenesis of SARS-CoV-2 infection

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    Background: Epidemiological, virological and pathogenetic characteristics of SARS-CoV-2 infection are under evaluation. A better understanding of the pathophysiology associated with COVID-19 is crucial to improve treatment modalities and to develop effective prevention strategies. Transcriptomic and proteomic data on the host response against SARS-CoV-2 still have anecdotic character; currently available data from other coronavirus infections are therefore a key source of information. Methods: We investigated selected molecular aspects of three human coronavirus (HCoV) infections, namely SARS-CoV, MERS-CoV and HCoV-229E, through a network based-approach. A functional analysis of HCoV-host interactome was carried out in order to provide a theoretic host-pathogen interaction model for HCoV infections and in order to translate the results in prediction for SARS-CoV-2 pathogenesis. The 3D model of S-glycoprotein of SARS-CoV-2 was compared to the structure of the corresponding SARS-CoV, HCoV-229E and MERS-CoV S-glycoprotein. SARS-CoV, MERS-CoV, HCoV-229E and the host interactome were inferred through published protein-protein interactions (PPI) as well as gene co-expression, triggered by HCoV S-glycoprotein in host cells. Results: Although the amino acid sequences of the S-glycoprotein were found to be different between the various HCoV, the structures showed high similarity, but the best 3D structural overlap shared by SARS-CoV and SARS-CoV-2, consistent with the shared ACE2 predicted receptor. The host interactome, linked to the S-glycoprotein of SARS-CoV and MERS-CoV, mainly highlighted innate immunity pathway components, such as Toll Like receptors, cytokines and chemokines. Conclusions: In this paper, we developed a network-based model with the aim to define molecular aspects of pathogenic phenotypes in HCoV infections. The resulting pattern may facilitate the process of structure-guided pharmaceutical and diagnostic research with the prospect to identify potential new biological targets

    Oltre l’era Covid-19: dall’emergenza alle prospettive di sviluppo professionale

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    The University was rapidly pushed into the era of distance teaching and learning (Dad) to cope with the imperative to ensure training for young people even in the lockdown period due to the Covid-19 pandemic. This necessity forced academics to a fast reconversion of traditional teaching into online learning environments for many still unknown and unusual. This has led to significant changes in the approaches and practices in use, favoring choices and solutions often not considered before. This research investigates the experience of distance teaching and learning (Dad), defining the concept, to investigate changes occurred in teaching practice, paying specific attention to the teaching mediation and to assessment, two areas considered foundational and emblematic in teaching-learning processes. 721 academics responded to an online questionnaire designed for this research; from the answers relevant changes in teaching and assessment methods emerged. Together with an increase of interest in the use of online practices, critical elements also emerged, such as the permanence of traditional models and innovation. Overall, the results seem to outline, although to different extents, the need to consider as central the professionalism of academics as a key factor to successfully reconvert the experience of Dad beyond the contingent moment.L’Università è entrata prepotentemente nell’era della didattica a distanza (DaD) per far fronte all’imperativo di garantire la formazione ai giovani anche nel periodo di lockdown imposto a seguito della pandemia del Covid-19. L’esperienza ha costretto la docenza ad una veloce riconversione della didattica tradizionale all’interno di modelli di azione on line per molti di loro sconosciuti e inusuali. Ciò ha determinato modificazioni significative negli approcci e nelle pratiche in uso, favorendo scelte e soluzioni spesso non considerate in precedenza. La ricerca indaga nello specifico l’esperienza della DaD, definendone il costrutto, per far emergere le modificazioni intervenute nella pratica didattica, ponendo un’attenzione particolare alla mediazione didattica e alla valutazione, due aree considerate fondative ed emblematiche nell’azione di insegnamento-apprendimento. Attraverso la somministrazione di un questionario on line a cui hanno risposto 721 docenti, si evidenziano le metamorfosi intervenute nell’azione di mediazione e di valutazione. Insieme ad un aumento di interesse verso l’utilizzo di pratiche on line compaiono elementi di criticità, connessi soprattutto al permanere di modelli tradizionali, e di innovazione, indotti dall’esigenza di offrire agli studenti un livello adeguato di qualità didattica per l’apprendimento. Nell’insieme gli esiti emersi sembrano profilare, sia pure con diverso grado di intensità, l’esigenza di considerare come centrale la professionalità del docente indicata quale fattore chiave per riconvertire positivamente l’esperienza della DaD oltre il portato contingente

    Reducing mortality and morbidity in patients with severe COVID-19 disease by advancing ongoing trials of Mesenchymal Stromal (stem) Cell (MSC) therapy - Achieving global consensus and visibility for cellular host-directed therapies

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    As of May 17th 2020, the novel coronavirus disease 2019 (COVID-19) pandemic has caused 307,395 deaths worldwide, out of 3,917,366 cases reported to the World Health Organization. No specific treatments for reducing mortality or morbidity are yet available. Deaths from COVID-19 will continue to rise globally until effective and appropriate treatments and/or vaccines are found. In search of effective treatments, the global medical, scientific, pharma and funding communities have rapidly initiated over 500 COVID-19 clinical trials on a range of antiviral drug regimens and repurposed drugs in various combinations. A paradigm shift is underway from the current focus of drug development targeting the pathogen, to advancing cellular Host-Directed Therapies (HDTs) for tackling the aberrant host immune and inflammatory responses which underlie the pathogenesis of SARS-CoV-2 and high COVID-19 mortality rates. We focus this editorial specifically on the background to, and the rationale for, the use and evaluation of mesenchymal stromal (Stem) cells (MSCs) in treatment trials of patients with severe COVID-19 disease. Currently, the ClinicalTrials.gov and the WHO Clinical Trials Registry Platform (WHO ICTRP) report a combined 28 trials exploring the potential of MSCs or their products for treatment of COVID-19. MSCs should also be trialed for treatment of other circulating WHO priority Blueprint pathogens such as MERS-CoV which causes upto 34% mortality rates. It's about time funding agencies invested more into development MSCs per se, and also for a range of other HDTs, in combination with other therapeutic interventions. MSC therapy could turn out to be an important contribution to bringing an end to the high COVID-19 death rates and preventing long-term functional disability in those who survive disease

    Safety of third dose of COVID-19 vaccination in frail patients: Results from the prospective Italian VAX4FRAIL study

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    Importance: Despite people with impaired immune competence due to an underlying disease or ongoing therapy, hereinafter frail patients, are (likely to be) the first to be vaccinated, they were usually excluded from clinical trials. Objective: To report adverse reactions of frail patients after receipt of the third dose (booster) administered after completion of a two-dose mRNA vaccination and to compare with those reported after the receipt of the first two doses. Design: A multicenter, observational, prospective study aimed at evaluating both the safety profile and the immune response of Pfizer-BioNTech or Moderna vaccines in frail patients. Setting: National Project on Vaccines, COVID-19 and Frail Patients (VAX4FRAIL) Participants: People consenting and included in the VAX4FRAIL trial. Exposure: A series of three doses of COVID-19 mRNA vaccination from the same manufacturer. Main outcome(s) and measure(s): Evaluation of a self-assessment questionnaire addressing a predefined list of eight symptoms on a five-item Likert scale. Symptoms were classified as severe if the patient rated them as severe or overwhelming. Results: Among 320 VAX4FRAIL participants diagnosed/treated for hematological malignancies (N=105; 32.8%), solid tumors (N=48; 15.0%), immune-rheumatological diseases (N=60; 18.8%), neurological diseases (N=107; 33.4%), and receiving the booster dose, 70.3% reported at least one loco-regional or systemic reactions. Adverse events were mostly mild or moderate, none being life-threatening. Only six of the 320 (1.9%) patients had their treatment postponed due to the vaccine. The safety profile of the booster compared to previously administered two doses showed a stable prevalence of patients with one or more adverse events (73.5%, 79.7% and 73.9% respectively), and a slightly increment of patients with one or more severe adverse events (13.4%, 13.9% and 19.2% respectively). Conclusions and relevance: The booster of the mRNA COVID-19 vaccine was safely administered in the largest prospective cohort of frail patients reported so far. VAX4FRAIL will continue to monitor the safety of additional vaccine doses, especially systemic adverse events that can be easily prevented to avoid interruption of continuity of care. Clinical trial registration: https://clinicaltrials.gov/ct2/show/NCT04848493, identifier NCT04848493

    Interferon-α Improves Phosphoantigen-Induced Vγ9Vδ2 T-Cells Interferon-γ Production during Chronic HCV Infection

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    In chronic HCV infection, treatment failure and defective host immune response highly demand improved therapy strategies. Vγ9Vδ2 T-cells may inhibit HCV replication in vitro through IFN-γ release after Phosphoantigen (PhAg) stimulation. The aim of our work was to analyze Vγ9Vδ2 T-cell functionality during chronic HCV infection, studying the role of IFN-α on their function capability. IFN-γ production by Vγ9Vδ2 T-cells was analyzed in vitro in 24 HCV-infected patients and 35 healthy donors (HD) after PhAg stimulation with or without IFN-α. The effect of in vivo PhAg/IFN-α administration on plasma IFN-γ levels was analyzed in M. fascicularis monkeys. A quantitative analysis of IFN-γ mRNA level and stability in Vγ9Vδ2 T-cells was also evaluated. During chronic HCV infection, Vγ9Vδ2 T-cells showed an effector/activated phenotype and were significantly impaired in IFN-γ production. Interestingly, IFN-α was able to improve their IFN-γ response to PhAg both in vitro in HD and HCV-infected patients, and in vivo in Macaca fascicularis primates. Finally, IFN-α increased IFN-γ-mRNA transcription and stability in PhAg-activated Vγ9Vδ2 T-cells. Altogether our results show a functional impairment of Vγ9Vδ2 T-cells during chronic HCV infection that can be partially restored by using IFN-α. A study aimed to evaluate the antiviral impact of PhAg/IFN-α combination may provide new insight in designing possible combined strategies to improve HCV infection treatment outcome
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