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2. Social Representation of Disability and Teachers

Author

Rizzo, Sara, Frolli, Alessandro, Cavallaro, Antonella, Sinigaglia, Giuseppina, and Scire, Sebastiano

Abstract

With the International Classification of Functioning, Disability and Health (ICF), the term disability is consolidated in its dynamic meaning as a condition that is defined by the interaction between personal factors and the environment in which one lives (WHO, 2001). The characteristics of the reference context that can be an obstacle or facilitation are evaluated with greater emphasis, including the perception of disability by teachers as a factor that will mediate the implementation of different behaviors and methodologies stemming from it. The purpose of the present survey, which includes 422 teachers attending a specialization course for support activities and was conducted through the administration of a questionnaire, was precisely to evaluate this perception. In particular, it evaluated the following: the differences in starting and finishing the specialization course for the achievement of the teaching qualification in support, the impact of previous experience with the disability, and the motivation to teach. Outcomes display a progressive normalization in the characteristics of a person with disabilities. The teaching strategies undergo a change between the beginning and the end of the course, with a focus from the general to the particular, becoming more targeted and detailed. In terms of opinions, emotions, and concerns, familiarity with disability seems to produce a less prejudicial and stereotyped representation, as does the teaching experience with a disabled pupil. The importance of active previous experience is confirmed in order to develop a better representation with a consequent reduction in prejudice. Further data emerge in terms of increased ability, at the end of the course, to verbally discriminate the concepts of inclusion and integration, with probable differences in approaches. The motivation for teaching is confirmed to be connected to job placement and therefore should be further investigated with scales that control the social desirability of the response. The present study shows the importance of both the perception of familiarity with disability and specialized education in supporting disabled students. We hope that future research might further investigate this area in order to improve the quality of life of disabled people through better relations with teachers and better academic outcomes.

Published
2021

4. Biased Opinion Dynamics: When the Devil Is in the Details

Author

Anagnostopoulos, Aris, Becchetti, Luca, Cruciani, Emilio, Pasquale, Francesco, and Rizzo, Sara

Subjects
Computer Science - Multiagent Systems, Computer Science - Social and Information Networks
Abstract

We investigate opinion dynamics in multi-agent networks when a bias toward one of two possible opinions exists; for example, reflecting a status quo vs a superior alternative. Starting with all agents sharing an initial opinion representing the status quo, the system evolves in steps. In each step, one agent selected uniformly at random adopts the superior opinion with some probability $\alpha$, and with probability $1 - \alpha$ it follows an underlying update rule to revise its opinion on the basis of those held by its neighbors. We analyze convergence of the resulting process under two well-known update rules, namely majority and voter. The framework we propose exhibits a rich structure, with a non-obvious interplay between topology and underlying update rule. For example, for the voter rule we show that the speed of convergence bears no significant dependence on the underlying topology, whereas the picture changes completely under the majority rule, where network density negatively affects convergence. We believe that the model we propose is at the same time simple, rich, and modular, affording mathematical characterization of the interplay between bias, underlying opinion dynamics, and social structure in a unified setting., Comment: The paper has appeared in the Proceedings of the Twenty-Ninth International Joint Conference on Artificial Intelligence. The SOLE copyright holder is IJCAI (International Joint Conferences on Artificial Intelligence), all rights reserved. Link to the proceedings: https://www.ijcai.org/Proceedings/2020/8

Published
2020
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5. Phase Transition of the k-Majority Dynamics in Biased Communication Models

Author

Cruciani, Emilio, Mimun, Hlafo Alfie, Quattropani, Matteo, and Rizzo, Sara

Subjects
Computer Science - Distributed, Parallel, and Cluster Computing, Computer Science - Data Structures and Algorithms, Mathematics - Probability
Abstract

Consider a graph where each of the $n$ nodes is either in state $\mathcal{R}$ or $\mathcal{B}$. Herein, we analyze the \emph{synchronous $k$-Majority dynamics}, where in each discrete-time round nodes simultaneously sample $k$ neighbors uniformly at random with replacement and adopt the majority state among those of the nodes in the sample (breaking ties uniformly at random). Differently from previous work, we study the robustness of the $k$-Majority in \emph{maintaining a $\mathcal{R}$ majority}, when the dynamics is subject to two forms of \emph{bias} toward state $\mathcal{B}$. The bias models an external agent that attempts to subvert the initial majority by altering the communication between nodes, with a probability of success $p$ in each round: in the first form of bias, the agent tries to alter the communication links by transmitting state $\mathcal{B}$; in the second form of bias, the agent tries to corrupt nodes directly by making them update to $\mathcal{B}$. Our main result shows a \emph{sharp phase transition} in both forms of bias. By considering initial configurations in which every node has probability $q \in (\frac{1}{2},1]$ of being in state $\mathcal{R}$, we prove that for every $k\geq3$ there exists a critical value $p_{k,q}^*$ such that, with high probability, the external agent is able to subvert the initial majority either in $n^{\omega(1)}$ rounds, if $pp_{k,q}^*$. When $k<3$, instead, no phase transition phenomenon is observed and the disruption happens in $O(1)$ rounds for $p>0$., Comment: Preliminary versions published in DISC 2020 (Brief Announcement) and ICDCN 2021. Full version published in Distributed Computing

Published
2020

7. Step-by-Step Community Detection in Volume-Regular Graphs

Author

Becchetti, Luca, Cruciani, Emilio, Pasquale, Francesco, and Rizzo, Sara

Subjects
Computer Science - Distributed, Parallel, and Cluster Computing, Computer Science - Discrete Mathematics, Computer Science - Data Structures and Algorithms
Abstract

Spectral techniques have proved amongst the most effective approaches to graph clustering. However, in general they require explicit computation of the main eigenvectors of a suitable matrix (usually the Laplacian matrix of the graph). Recent work (e.g., Becchetti et al., SODA 2017) suggests that observing the temporal evolution of the power method applied to an initial random vector may, at least in some cases, provide enough information on the space spanned by the first two eigenvectors, so as to allow recovery of a hidden partition without explicit eigenvector computations. While the results of Becchetti et al. apply to perfectly balanced partitions and/or graphs that exhibit very strong forms of regularity, we extend their approach to graphs containing a hidden $k$ partition and characterized by a milder form of volume-regularity. We show that the class of $k$-volume-regular graphs is the largest class of undirected (possibly weighted) graphs whose transition matrix admits $k$ "stepwise" eigenvectors (i.e., vectors that are constant over each set of the hidden partition). To obtain this result, we highlight a connection between volume regularity and lumpability of Markov chains. Moreover, we prove that if the stepwise eigenvectors are those associated to the first $k$ eigenvalues and the gap between the $k$-th and the ($k$+1)-th eigenvalues is sufficiently large, the averaging dynamics of Becchetti et al. recovers the underlying community structure of the graph in logarithmic time, with high probability., Comment: Preliminary version appeared in Proceedings of ISAAC 2019

Published
2019

10. Supporting Caregivers Remotely During a Pandemic: Comparison of WHO Caregiver Skills Training Delivered Online Versus in Person in Public Health Settings in Italy.

Author

Ferrante, Camilla, Sorgato, Paola, Fioravanti, Mariachiara, Pacione, Laura, Arduino, Giuseppe Maurizio, Ghersi, Sabrina, Scattoni, Maria Luisa, Chiesa, Camilla, Elia, Donatella, Gonella, Elisabetta, Rizzo, Sara, Salandin, Arianna, Brown, Felicity L., Shire, Stephanie, Servili, Chiara, and Salomone, Erica

Subjects
TREATMENT of autism, SERVICES for caregivers, ONLINE education, PILOT projects, CAREGIVERS, PUBLIC health, FAMILIES, ABILITY, TRAINING, QUALITATIVE research, HUMAN services programs, RESEARCH funding, DESCRIPTIVE statistics, EMOTIONS, COVID-19 pandemic
Abstract

Feasibility, acceptability and effectiveness data of a virtual adaptation of the WHO Caregiver Skills Training (CST; n = 25) were compared with those of a pilot RCT of CST delivered in person (n = 43) against treatment as usual (TAU; n = 43). Virtual CST was delivered with high levels of integrity, but received lower ratings in some caregiver- and facilitator-rated acceptability and feasibility dimensions. Qualitative analysis identified both benefits (flexibility, convenience, clinical usefulness) and challenges, (technological issues, distraction from family members, emotional distance). Virtual and in-person CST improved significantly more on caregiver competence than TAU; there were no other significant effects. Potential for use of virtual CST as a clinical response in contexts where in-person delivery is not possible is discussed. [ABSTRACT FROM AUTHOR]

Published
2024
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14. Information Sciences / Biased opinion dynamics : when the devil is in the details

Author

Anagnostōpulos, Arēs, Becchetti, Luca, Cruciani, Emilio, Pasquale, Francesco, and Rizzo, Sara

Subjects
Consensus, Markov chains, Majority dynamics, Voter model, Opinion dynamics, Social networks
Abstract

We study opinion dynamics in multi-agent networks when a bias toward one of two possible opinions exists, for example reflecting a status quo versus a superior alternative. Our aim is to investigate the combined effect of bias, network structure, and opinion dynamics on the convergence of the system of agents as a whole. Models of such evolving processes can easily become analytically intractable. In this paper, we consider a simple yet mathematically rich setting, in which all agents initially share an initial opinion representing the status quo. The system evolves in steps. In each step, one agent selected uniformly at random follows an underlying update rule to revise its opinion on the basis of those held by its neighbors, but with a probabilistic bias towards the superior alternative. We analyze convergence of the resulting process under well-known update rules. The framework we propose is simple and modular, but at the same time complex enough to highlight a nonobvious interplay between topology and underlying update rule.

Published
2022

20. Brief Announcement: Phase Transitions of the $k$-Majority Dynamics in a Biased Communication Model

Author

Cruciani, Emilio, Mimun, Hlafo Alfie, Quattropani, Matteo, Rizzo, Sara, Combinatorics, Optimization and Algorithms for Telecommunications (COATI), Inria Sophia Antipolis - Méditerranée (CRISAM), Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-COMmunications, Réseaux, systèmes Embarqués et Distribués (Laboratoire I3S - COMRED), Laboratoire d'Informatique, Signaux, et Systèmes de Sophia Antipolis (I3S), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA)-Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA)-Laboratoire d'Informatique, Signaux, et Systèmes de Sophia Antipolis (I3S), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA), Libera Università Internazionale degli Studi Sociali Guido Carli [Roma] (LUISS), Gran Sasso Science Institute (GSSI), Istituto Nazionale di Fisica Nucleare (INFN), COMmunications, Réseaux, systèmes Embarqués et Distribués (Laboratoire I3S - COMRED), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA)-Inria Sophia Antipolis - Méditerranée (CRISAM), and Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)

Subjects
Consensus, Biased Communication, Mathematics of computing → Probabilistic algorithms, 0102 computer and information sciences, 01 natural sciences, Markov Chains, 03 medical and health sciences, Metastability, 0302 clinical medicine, 010201 computation theory & mathematics, 030220 oncology & carcinogenesis, Theory of computation → Random walks and Markov chains, Majority Dynamics, Theory of computation → Distributed algorithms, [INFO.INFO-DC]Computer Science [cs]/Distributed, Parallel, and Cluster Computing [cs.DC], Mathematics of computing → Markov processes
Abstract

We analyze the binary-state (either ℛ or ℬ) k-majority dynamics in a biased communication model where nodes have some fixed probability p, independent of the dynamics, of being seen in state ℬ by their neighbors. In this setting we study how p, as well as the initial unbalance between the two states, impact on the speed of convergence of the process, identifying sharp phase transitions., LIPIcs, Vol. 179, 34th International Symposium on Distributed Computing (DISC 2020), pages 42:1-42:3

Published
2020

21. Brief Announcement: Phase Transitions of the k-Majority Dynamics in a Biased Communication Model

Author

Cruciani, Emilio, Mimun, Hlafo Alfie, Quattropani, Matteo, Rizzo, Sara, Cruciani, Emilio, Mimun, Hlafo Alfie, Quattropani, Matteo, and Rizzo, Sara

Abstract

We analyze the binary-state (either ? or ?) k-majority dynamics in a biased communication model where nodes have some fixed probability p, independent of the dynamics, of being seen in state ? by their neighbors. In this setting we study how p, as well as the initial unbalance between the two states, impact on the speed of convergence of the process, identifying sharp phase transitions.

Published
2020
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22. Brief Announcement: Phase Transitions of the k-Majority Dynamics in a Biased Communication Model

Author

Emilio Cruciani and Hlafo Alfie Mimun and Matteo Quattropani and Sara Rizzo, Cruciani, Emilio, Mimun, Hlafo Alfie, Quattropani, Matteo, Rizzo, Sara, Emilio Cruciani and Hlafo Alfie Mimun and Matteo Quattropani and Sara Rizzo, Cruciani, Emilio, Mimun, Hlafo Alfie, Quattropani, Matteo, and Rizzo, Sara

Abstract

We analyze the binary-state (either ℛ or ℬ) k-majority dynamics in a biased communication model where nodes have some fixed probability p, independent of the dynamics, of being seen in state ℬ by their neighbors. In this setting we study how p, as well as the initial unbalance between the two states, impact on the speed of convergence of the process, identifying sharp phase transitions.

Published
2020
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27. Step-By-Step Community Detection in Volume-Regular Graphs

Author

Luca Becchetti and Emilio Cruciani and Francesco Pasquale and Sara Rizzo, Becchetti, Luca, Cruciani, Emilio, Pasquale, Francesco, Rizzo, Sara, Luca Becchetti and Emilio Cruciani and Francesco Pasquale and Sara Rizzo, Becchetti, Luca, Cruciani, Emilio, Pasquale, Francesco, and Rizzo, Sara

Abstract

Spectral techniques have proved amongst the most effective approaches to graph clustering. However, in general they require explicit computation of the main eigenvectors of a suitable matrix (usually the Laplacian matrix of the graph). Recent work (e.g., Becchetti et al., SODA 2017) suggests that observing the temporal evolution of the power method applied to an initial random vector may, at least in some cases, provide enough information on the space spanned by the first two eigenvectors, so as to allow recovery of a hidden partition without explicit eigenvector computations. While the results of Becchetti et al. apply to perfectly balanced partitions and/or graphs that exhibit very strong forms of regularity, we extend their approach to graphs containing a hidden k partition and characterized by a milder form of volume-regularity. We show that the class of k-volume regular graphs is the largest class of undirected (possibly weighted) graphs whose transition matrix admits k "stepwise" eigenvectors (i.e., vectors that are constant over each set of the hidden partition). To obtain this result, we highlight a connection between volume regularity and lumpability of Markov chains. Moreover, we prove that if the stepwise eigenvectors are those associated to the first k eigenvalues and the gap between the k-th and the (k+1)-th eigenvalues is sufficiently large, the Averaging dynamics of Becchetti et al. recovers the underlying community structure of the graph in logarithmic time, with high probability.

Published
2019
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31. Flipped classroom, LCA y materiales de construcción: una experiencia didáctica para una actividad de aprendizaje cooperativa y activa

Author

Garcia Escudero, Daniel, Bardí Milà, Berta, Rizzo, Sara, Cappellaro, Francesca, Ruiz-Checa, José Ramon, Cristini, Valentina, Garcia Escudero, Daniel, Bardí Milà, Berta, Rizzo, Sara, Cappellaro, Francesca, Ruiz-Checa, José Ramon, and Cristini, Valentina

Abstract

El texto presenta una experiencia didáctica interdisciplinar que se está llevando a cabo en el Campus Terracini de la Università di Bologna (por miembros académicos de la Universidad de Bolonia investigadores del centro ENEA y de la Universitat Politècnica de València). La actividad se centra en la realización de un pequeño pabellón, sede del Trasition Team, un grupo experimental, involucrados en temáticas ambientales y sostenibles, internas y externas a la dinámica académica del Campus. Para ello, se ha estructurado una experiencia didáctica constructiva, centrada en este caso, en el empleo de materiales locales, que cumplen con requisitos determinados, prestaciones energéticas e impacto sostenible. Gracias a esta experiencia participativa de autoconstrucción, basada en la aplicación, análisis y definición del LCA de algunos materiales constructivos se está experimentando una propuesta didáctica alternativa, basada en el concepto de clase inversa o flipped classroom, crucial para futuros profesionales vinculados directa e indirectamente al mundo de la construcción., The paper outlines a didactic project undertaken at Campus Terracini (University of Bolonia Italy) thanks to local staff members and with the support of researchers from ENEA agency, Italy and professors of Polytechnic University of Valencia, Spain. The activity tries to To make sustainability transitions happen, considering that it is crucial not only to have a strategic planning processes committed by the top management, but also to encourage community engagement, approaching and promoting a bottom-up process. For this reason the project is concerning the layout of a small pavilion, head quarter of Transition Team (a multifunction group involved in sustainability plan of Unibo). To meet environmental performances, the space is planned with the use of appropriate building technologies, employing low impact and local materials. In addition, the space is realized in auto-construction, in order to strengthen the involvement of final users, the students. This paper will show an evaluation of appropriate building technologies with an LCA approach, combined with flipped classroom didactic methodology.

Published
2015

32. Resources-saving in building. Non conventional technologies and environmental assessment with LCA approach

Author

Rizzo, Sara

Subjects
ING-IND/29 Ingegneria delle materie prime
Abstract

Nel corso del mio lavoro di ricerca mi sono occupata di identificare strategie che permettano il risparmio delle risorse a livello edilizio e di approfondire un metodo per la valutazione ambientale di tali strategie. La convinzione di fondo è che bisogna uscire da una visione antropocentrica in cui tutto ciò che ci circonda è merce e materiale a disposizione dell’uomo, per entrare in una nuova era di equilibrio tra le risorse della terra e le attività che l’uomo esercita sul pianeta. Ho quindi affrontato il tema dell’edilizia responsabile approfondendo l’ambito delle costruzioni in balle di paglia e terra. Sono convinta che l’edilizia industriale abbia un futuro molto breve davanti a sé e lascerà inevitabilmente spazio a tecniche non convenzionali che coinvolgono materiali di semplice reperimento e posa in opera. Sono altresì convinta che il solo utilizzo di materiali naturali non sia garanzia di danni ridotti sull’ecosistema. Allo stesso tempo ritengo che una mera certificazione energetica non sia sinonimo di sostenibilità. Per questo motivo ho valutato le tecnologie non convenzionali con approccio LCA (Life Cycle Assessment), approfondendo gli impatti legati alla produzione, ai trasporti degli stessi, alla tipologia di messa in opera, e ai loro possibili scenari di fine vita. Inoltre ho approfondito il metodo di calcolo dei danni IMPACT, identificando una carenza nel sistema, che non prevede una categoria di danno legata alle modifiche delle condizioni idrogeologiche del terreno. La ricerca si è svolta attraverso attività pratiche e sperimentali in cantieri di edilizia non convenzionale e attività di ricerca e studio sull’LCA presso l’Enea di Bologna (Ing. Paolo Neri)., During my research period I worked to find strategies that assure saving resources in building field. I also worked to examine in depth a method for environmental evaluation of those strategies. I believe that human being has to leave the actual anthropocentric vision, in which all around us there is merchandise at our disposal. We have to entry into a new age of equilibrium between natural resources and human activities. I analyzed straw and clay as raw materials for sustainable buildings. In my opinion, industrialized construction building has to go flat and leave enough space for non conventional techniques and materials. I believe that we have to do more than only use natural materials in buildings. I believe also that energetic certification is not synonymous with reliability towards an eco-friendly product. For those reasons, I evaluated non conventional techniques with an LCA approach, analyzing impact in production phase, transporting, construction phase, end of life scenarios. Furthermore I studied IMPACT methodology for damage assessment and I find that there is a lack: the method doesn’t consider a damage category linked to human modification to natural hydrogeological conditions. I carried out the research through practical and experimental activities in construction sites, and LCA studies at Enea_Bologna (Ing. Paolo Neri).

Published
2013

33. Il risparmio delle risorse alla scala abitativa e di insediamento. Tecnologie non convenzionali e valutazione ambientale attraverso metodologia LCA

Author

Rizzo, Sara <1980>

Subjects
ING-IND/29 Ingegneria delle materie prime
Abstract

Nel corso del mio lavoro di ricerca mi sono occupata di identificare strategie che permettano il risparmio delle risorse a livello edilizio e di approfondire un metodo per la valutazione ambientale di tali strategie. La convinzione di fondo è che bisogna uscire da una visione antropocentrica in cui tutto ciò che ci circonda è merce e materiale a disposizione dell’uomo, per entrare in una nuova era di equilibrio tra le risorse della terra e le attività che l’uomo esercita sul pianeta. Ho quindi affrontato il tema dell’edilizia responsabile approfondendo l’ambito delle costruzioni in balle di paglia e terra. Sono convinta che l’edilizia industriale abbia un futuro molto breve davanti a sé e lascerà inevitabilmente spazio a tecniche non convenzionali che coinvolgono materiali di semplice reperimento e posa in opera. Sono altresì convinta che il solo utilizzo di materiali naturali non sia garanzia di danni ridotti sull’ecosistema. Allo stesso tempo ritengo che una mera certificazione energetica non sia sinonimo di sostenibilità. Per questo motivo ho valutato le tecnologie non convenzionali con approccio LCA (Life Cycle Assessment), approfondendo gli impatti legati alla produzione, ai trasporti degli stessi, alla tipologia di messa in opera, e ai loro possibili scenari di fine vita. Inoltre ho approfondito il metodo di calcolo dei danni IMPACT, identificando una carenza nel sistema, che non prevede una categoria di danno legata alle modifiche delle condizioni idrogeologiche del terreno. La ricerca si è svolta attraverso attività pratiche e sperimentali in cantieri di edilizia non convenzionale e attività di ricerca e studio sull’LCA presso l’Enea di Bologna (Ing. Paolo Neri)., During my research period I worked to find strategies that assure saving resources in building field. I also worked to examine in depth a method for environmental evaluation of those strategies. I believe that human being has to leave the actual anthropocentric vision, in which all around us there is merchandise at our disposal. We have to entry into a new age of equilibrium between natural resources and human activities. I analyzed straw and clay as raw materials for sustainable buildings. In my opinion, industrialized construction building has to go flat and leave enough space for non conventional techniques and materials. I believe that we have to do more than only use natural materials in buildings. I believe also that energetic certification is not synonymous with reliability towards an eco-friendly product. For those reasons, I evaluated non conventional techniques with an LCA approach, analyzing impact in production phase, transporting, construction phase, end of life scenarios. Furthermore I studied IMPACT methodology for damage assessment and I find that there is a lack: the method doesn’t consider a damage category linked to human modification to natural hydrogeological conditions. I carried out the research through practical and experimental activities in construction sites, and LCA studies at Enea_Bologna (Ing. Paolo Neri).

Published
2013
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36. Il risparmio delle risorse alla scala abitativa e di insediamento. Tecnologie non convenzionali e valutazione ambientale attraverso metodologia LCA.

Author

Bonoli, Alessandra, Rizzo, Sara <1980>, Bonoli, Alessandra, and Rizzo, Sara <1980>

Abstract

Nel corso del mio lavoro di ricerca mi sono occupata di identificare strategie che permettano il risparmio delle risorse a livello edilizio e di approfondire un metodo per la valutazione ambientale di tali strategie. La convinzione di fondo è che bisogna uscire da una visione antropocentrica in cui tutto ciò che ci circonda è merce e materiale a disposizione dell’uomo, per entrare in una nuova era di equilibrio tra le risorse della terra e le attività che l’uomo esercita sul pianeta. Ho quindi affrontato il tema dell’edilizia responsabile approfondendo l’ambito delle costruzioni in balle di paglia e terra. Sono convinta che l’edilizia industriale abbia un futuro molto breve davanti a sé e lascerà inevitabilmente spazio a tecniche non convenzionali che coinvolgono materiali di semplice reperimento e posa in opera. Sono altresì convinta che il solo utilizzo di materiali naturali non sia garanzia di danni ridotti sull’ecosistema. Allo stesso tempo ritengo che una mera certificazione energetica non sia sinonimo di sostenibilità. Per questo motivo ho valutato le tecnologie non convenzionali con approccio LCA (Life Cycle Assessment), approfondendo gli impatti legati alla produzione, ai trasporti degli stessi, alla tipologia di messa in opera, e ai loro possibili scenari di fine vita. Inoltre ho approfondito il metodo di calcolo dei danni IMPACT, identificando una carenza nel sistema, che non prevede una categoria di danno legata alle modifiche delle condizioni idrogeologiche del terreno. La ricerca si è svolta attraverso attività pratiche e sperimentali in cantieri di edilizia non convenzionale e attività di ricerca e studio sull’LCA presso l’Enea di Bologna (Ing. Paolo Neri)., During my research period I worked to find strategies that assure saving resources in building field. I also worked to examine in depth a method for environmental evaluation of those strategies. I believe that human being has to leave the actual anthropocentric vision, in which all around us there is merchandise at our disposal. We have to entry into a new age of equilibrium between natural resources and human activities. I analyzed straw and clay as raw materials for sustainable buildings. In my opinion, industrialized construction building has to go flat and leave enough space for non conventional techniques and materials. I believe that we have to do more than only use natural materials in buildings. I believe also that energetic certification is not synonymous with reliability towards an eco-friendly product. For those reasons, I evaluated non conventional techniques with an LCA approach, analyzing impact in production phase, transporting, construction phase, end of life scenarios. Furthermore I studied IMPACT methodology for damage assessment and I find that there is a lack: the method doesn’t consider a damage category linked to human modification to natural hydrogeological conditions. I carried out the research through practical and experimental activities in construction sites, and LCA studies at Enea_Bologna (Ing. Paolo Neri).

Published
2013

37. SYNDROMIC SURVEILLANCE FOR THE EARLY DETECTION OF INFLUENZA OUTBREAKS

Author

Rizzo, Sara L and Rizzo, Sara L

Abstract

Syndromic surveillance is a new mechanism utilized to detect naturally occurring and bioterroristic outbreaks. The public health significance is its potential to alert public health to outbreaks earlier and allow a timelier public health response. It involves monitoring data that can be collected in near real-time to find anomalous data. Syndromic surveillance includes school and work absenteeism, over-the-counter drug sales, and hospital admissions data to name a few. This study is an assessment of an extension of the use of syndromic surveillance as an improvement to the traditional method to detect more routine public health problems, specifically, the detection of influenza outbreaks. The assessment involves the prediction of outbreaks in four areas during the period October 15, 2003 to March 31, 2004. The four areas studied included Allegheny County, Pennsylvania, Jefferson County, Kentucky, Los Angeles County, California, and Salt Lake County, Utah. Two aspects of community activity were used as the method for syndromic surveillance, over-the-counter pharmaceutical sales and hospital chief complaints. The over-the-counter sales encompassed a panel of six items including anti-diarrheal medication, anti-fever adult medication, anti-fever pediatric medication, cough and cold products, electrolytes, and thermometers. Additionally, two of the seven hospital chief complaints used in the RODS open source paradigm were monitored. These were constitutional and respiratory chief complaints. Application of standard statistical algorithms showed that the system was able to identify unusual activity several weeks prior to the time when the local health departments were able to identify an outbreak using the standard methods. The largest improvement in detection using syndromic surveillance occurred in Los Angeles where the outbreak was detected 52 days before the Centers for Disease Control had declared widespread activity for the state. In each county over-the-counter sal

Published
2006

38. Improved Impact Properties in Poly(lactic acid) (PLA) Blends Containing Cellulose Acetate (CA) Prepared by Reactive Extrusion.

Author

Mallegni, Norma, Rizzo, Sara, Coltelli, Maria-Beatrice, Cinelli, Patrizia, and Lazzeri, Andrea

Subjects
*REACTIVE extrusion, *CELLULOSE acetate, *POLYLACTIC acid, *CARBON dioxide, *POLYMERS
Abstract

Poly(lactic acid)/triacetine plasticized cellulose acetate (PLA/pCA) blends were prepared by extrusion at two different temperatures and tetrabutylammonium tetraphenyl borate (TBATPB) was added as a transesterification catalyst to reactively promote the formation of PLA-CA copolymer during the reactive extrusion. The occurrence of chain scission in the PLA phase and branching/crosslinking in the CA phase in the presence of TBATPB, resulting also in a darkening of the material, were demonstrated by studying torque measurements and by performing proper thermogravimetric tests on CA with the different additives. Tensile and impact tests onto the blends prepared at the lower temperature showed better properties than the ones obtained at a higher temperature. Then, the mechanical properties of PLA/plasticized cellulose acetate (pCA) blends prepared at the lower temperature were investigated as a function of the content of plasticized CA in the blend. A range of compositions was observed where blends exhibited improved impact properties with respect to pure PLA without a significant decrease in their elastic modulus. The study of the phase morphology of the blends revealed that the occurrence of reactive compatibilization did not significantly affect the phase distribution. In general, fibrillar CA particles were formed in the PLA matrix during extrusion, thus allowing the preparation of CA fibre reinforced composites. The trend of morphology as a function of the composition and processing conditions was then discussed by considering the evolution of phase morphology in immiscible polymer blends. [ABSTRACT FROM AUTHOR]

Published
2019
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40. Consensus statement of the Italian society of pediatric allergy and immunology for the pragmatic management of children and adolescents with allergic or immunological diseases during the COVID-19 pandemic

Author

Fabio Cardinale, Giorgio Ciprandi, Salvatore Barberi, Roberto Bernardini, Carlo Caffarelli, Mauro Calvani, Giovanni Cavagni, Elena Galli, Domenico Minasi, Michele Miraglia Del Giudice, Viviana Moschese, Elio Novembre, Francesco Paravati, Diego G Peroni, Maria Angela Tosca, Giovanni Traina, Salvatore Tripodi, Gian Luigi Marseglia, Doriana Amato, Caterina Anania, Elisa Anastasio, Rachele Antignani, Stefania Arasi, Martire Baldassarre, Ermanno Baldo, Andrea Barbalace, Simona Barni, Federica Betti, Annamaria Bianchi, Ezio Bolzacchini, Maira Bonini, Paolo Bottau, Sara Bozzetto, Maria Antonia Brighetti, Davide Caimmi, Silvia Caimmi, Luigi Calzone, Caterina Cancrini, Lucia Caminiti, Giulia Capata, Lucetta Capra, Carlo Capristo, Elena Carboni, Francesco Carella, Riccardo Castagnoli, Elena Chiappini, Fernanda Chiera, Iolanda Chinellato, Loredana Chini, Francesca Cipriani, Flavio Civitelli, Pasquale Comberiati, Daniele Contini, Stefania Corrente, Claudio Cravidi, Giuseppe Crisafulli, Barbara Cuomo, Enza D'Auria, Sofia D'Elios, Fabio Decimo, Auro Della Giustina, Rosa Maria Delle Piane, Maria De Filippo, Valentina De Vittori, Lucia Diaferio, Maria Elisa Di Cicco, Dora Di Mauro, Marzia Duse, Silvia Federici, Giuseppe Felice, Maria Grazia Fenu, Giuliana Ferrante, Tiziana Foti, Fabrizio Franceschini, Daniele Ghiglioni, Giuliana Giardino, Mattia Giovannini, Giovanni Cosimo Indirli, Cristiana Indolfi, Massimo Landi, Francesco La Torre, Lucia Maddalena Leone, Amelia Licari, Lucia Liotti, Vassilios Lougaris, Nunzia Maiello, Paride Mantecca, Sara Manti, Marco Maria Mariani, Alberto Martelli, Carla Mastrorilli, Violetta Mastrorilli, Davide Montin, Francesca Mori, Roberta Olcese, Giorgio Ottaviano, Claudia Paglialunga, Giovanni Pajno, Giuseppe Parisi, Stefano Pattini, Luca Pecoraro, Umberto Pelosi, Claudio Pignata, Giampaolo Ricci, Silvia Ricci, Stefano Rizzi, Caterina Rizzo, Sara Rosati, Paolo Rosso, Maria Sangerardi, Angelica Santoro, Francesca Saretta, Lucrezia Sarti, Marco Sartorio, Majla Sgruletti, Annarosa Soresina, Ifigenia Sfika, Mayla Sgrulletti, Nuccia Tesse, Valentina Tranchino, Alessandro Travaglini, Malizia Velia, Elvira Verduci, Mario Vernich, Elisabetta Veronelli, Stefano Volpi, Martina Votto, Anna Maria Zicari, Cardinale, F., Ciprandi, G., Barberi, S., Bernardini, R., Caffarelli, C., Calvani, M., Cavagni, G., Galli, E., Minasi, D., Del Giudice, M. M., Moschese, V., Novembre, E., Paravati, F., Peroni, D. G., Tosca, M. A., Traina, G., Tripodi, S., Marseglia, G. L., Amato, D., Anania, C., Anastasio, E., Antignani, R., Arasi, S., Baldassarre, M., Baldo, E., Barbalace, A., Barni, S., Betti, F., Bianchi, A., Bolzacchini, E., Bonini, M., Bottau, P., Bozzetto, S., Brighetti, M. A., Caimmi, D., Caimmi, S., Calzone, L., Cancrini, C., Caminiti, L., Capata, G., Capra, L., Capristo, C., Carboni, E., Carella, F., Castagnoli, R., Chiappini, E., Chiera, F., Chinellato, I., Chini, L., Cipriani, F., Civitelli, F., Comberiati, P., Contini, D., Corrente, S., Cravidi, C., Crisafulli, G., Cuomo, B., D'Auria, E., D'Elios, S., Decimo, F., Giustina, A. D., Piane, R. M. D., De Filippo, M., De Vittori, V., Diaferio, L., Di Mauro, M. E., Duse, M., Federici, S., Felice, G., Fenu, G., Ferrante, G., Foti, T., Franceschini, F., Ghiglioni, D., Giardino, G., Giovannini, M., Indirli, G. C., Indolfi, C., Landi, M., La Torre, F., Leone, L. M., Licari, A., Liotti, L., Lougaris, V., Maiello, N., Mantecca, P., Manti, S., Mariani, M. M., Martelli, A., Mastrorilli, C., Mastrorilli, V., Montin, D., Mori, F., Olcese, R., Ottaviano, G., Paglialunga, C., Pajno, G., Parisi, G., Pattini, S., Pecoraro, L., Pelosi, U., Pignata, C., Ricci, G., Ricci, S., Rizzi, S., Rizzo, C., Rosati, S., Rosso, P., Sangerardi, M., Santoro, A., Saretta, F., Sarti, L., Sartorio, M., Sgruletti, M., Soresina, A., Sfika, I., Sgrulletti, M., Tesse, N., Tranchino, V., Travaglini, A., Velia, M., Verduci, E., Vernich, M., Veronelli, E., Volpi, S., Votto, M., Zicari, A. M., Cardinale, Fabio, Ciprandi, Giorgio, Barberi, Salvatore, Bernardini, Roberto, Caffarelli, Carlo, Calvani, Mauro, Cavagni, Giovanni, Galli, Elena, Minasi, Domenico, Del Giudice, Michele Miraglia, Moschese, Viviana, Novembre, Elio, Paravati, Francesco, Peroni, Diego G, Tosca, Maria Angela, Traina, Giovanni, Tripodi, Salvatore, Marseglia, Gian Luigi, SIAIP task force Pignata, Claudio, Cardinale, F, Ciprandi, G, Barberi, S, Bernardini, R, Caffarelli, C, Calvani, M, Cavagni, G, Galli, E, Minasi, D, Del Giudice, M, Moschese, V, Novembre, E, Paravati, F, Peroni, D, Tosca, M, Traina, G, Tripodi, S, Marseglia, G, Amato, D, Anania, C, Anastasio, E, Antignani, R, Arasi, S, Baldassarre, M, Baldo, E, Barbalace, A, Barni, S, Betti, F, Bianchi, A, Bolzacchini, E, Bonini, M, Bottau, P, Bozzetto, S, Brighetti, M, Caimmi, D, Caimmi, S, Calzone, L, Cancrini, C, Caminiti, L, Capata, G, Capra, L, Capristo, C, Carboni, E, Carella, F, Castagnoli, R, Chiappini, E, Chiera, F, Chinellato, I, Chini, L, Cipriani, F, Civitelli, F, Comberiati, P, Contini, D, Corrente, S, Cravidi, C, Crisafulli, G, Cuomo, B, D'Auria, E, D'Elios, S, Decimo, F, Giustina, A, Piane, R, De Filippo, M, De Vittori, V, Diaferio, L, Di Mauro, M, Duse, M, Federici, S, Felice, G, Fenu, G, Ferrante, G, Foti, T, Franceschini, F, Ghiglioni, D, Giardino, G, Giovannini, M, Indirli, G, Indolfi, C, Landi, M, La Torre, F, Leone, L, Licari, A, Liotti, L, Lougaris, V, Maiello, N, Mantecca, P, Manti, S, Mariani, M, Martelli, A, Mastrorilli, C, Mastrorilli, V, Montin, D, Mori, F, Olcese, R, Ottaviano, G, Paglialunga, C, Pajno, G, Parisi, G, Pattini, S, Pecoraro, L, Pelosi, U, Pignata, C, Ricci, G, Ricci, S, Rizzi, S, Rizzo, C, Rosati, S, Rosso, P, Sangerardi, M, Santoro, A, Saretta, F, Sarti, L, Sartorio, M, Sgruletti, M, Soresina, A, Sfika, I, Sgrulletti, M, Tesse, N, Tranchino, V, Travaglini, A, Velia, M, Verduci, E, Vernich, M, Veronelli, E, Volpi, S, Votto, M, Zicari, A, and Fabio Cardinale, Giorgio Ciprandi, Salvatore Barberi, Roberto Bernardini, Carlo Caffarelli, Mauro Calvani, Giovanni Cavagni, Elena Galli, Domenico Minasi, Michele Miraglia Del Giudice, Viviana Moschese, Elio Novembre, Francesco Paravati, Diego G Peroni, Maria Angela Tosca, Giovanni Traina, Salvatore Tripodi, Gian Luigi Marseglia, Doriana Amato, Caterina Anania, Elisa Anastasio, Rachele Antignani, Stefania Arasi, Martire Baldassarre, Ermanno Baldo, Andrea Barbalace, Simona Barni, Federica Betti, Annamaria Bianchi, Ezio Bolzacchini, Maira Bonini, Paolo Bottau, Sara Bozzetto, Maria Antonia Brighetti, Davide Caimmi, Silvia Caimmi, Luigi Calzone, Caterina Cancrini, Lucia Caminiti, Giulia Capata, Lucetta Capra, Carlo Capristo, Elena Carboni, Francesco Carella, Riccardo Castagnoli, Elena Chiappini, Fernanda Chiera, Iolanda Chinellato, Loredana Chini, Francesca Cipriani, Flavio Civitelli, Pasquale Comberiati, Daniele Contini, Stefania Corrente, Claudio Cravidi, Giuseppe Crisafulli, Barbara Cuomo, Enza D'Auria, Sofia D'Elios, Fabio Decimo, Auro Della Giustina, Rosa Maria Delle Piane, Maria De Filippo, Valentina De Vittori, Lucia Diaferio, Maria Elisa Di Cicco, Dora Di Mauro, Marzia Duse, Silvia Federici, Giuseppe Felice, Maria Grazia Fenu, Giuliana Ferrante, Tiziana Foti, Fabrizio Franceschini, Daniele Ghiglioni, Giuliana Giardino, Mattia Giovannini, Giovanni Cosimo Indirli, Cristiana Indolfi, Massimo Landi, Francesco La Torre, Lucia Maddalena Leone, Amelia Licari, Lucia Liotti, Vassilios Lougaris, Nunzia Maiello, Paride Mantecca, Sara Manti, Marco Maria Mariani, Alberto Martelli, Carla Mastrorilli, Violetta Mastrorilli, Davide Montin, Francesca Mori, Roberta Olcese, Giorgio Ottaviano, Claudia Paglialunga, Giovanni Pajno, Giuseppe Parisi, Stefano Pattini, Luca Pecoraro, Umberto Pelosi, Claudio Pignata, Giampaolo Ricci, Silvia Ricci, Stefano Rizzi, Caterina Rizzo, Sara Rosati, Paolo Rosso, Maria Sangerardi, Angelica Santoro, Francesca Saretta, Lucrezia Sarti, Marco Sartorio, Majla Sgruletti, Annarosa Soresina, Ifigenia Sfika, Mayla Sgrulletti, Nuccia Tesse, Valentina Tranchino, Alessandro Travaglini, Malizia Velia, Elvira Verduci, Mario Vernich, Elisabetta Veronelli, Stefano Volpi, Martina Votto, Anna Maria Zicari

Subjects
Allergy, Review, 030207 dermatology & venereal diseases, Settore MED/38 - Pediatria Generale E Specialistica, 0302 clinical medicine, COVID-19, Child, Pandemic, Immunologic disease, Asthma, Adolescent, Viral, 030212 general & internal medicine, Disease management (health), Societies, Medical, pandemic, child, adolescent, allergy, asthma, immunologic disease, Incidence (epidemiology), lcsh:RJ1-570, Disease Management, General Medicine, Atopic dermatitis, Settore MED/38, Coronavirus Infections, Decision Making, Humans, Italy, Pneumonia, Viral, Pragmatic Clinical Trials as Topic, SARS-CoV-2, Allergy and Immunology, Betacoronavirus, Consensus, Pandemics, Latex allergy, Human, Telemedicine, Consensu, 03 medical and health sciences, Medical, medicine, Risk factor, Betacoronaviru, business.industry, Coronavirus Infection, lcsh:Pediatrics, Pneumonia, medicine.disease, Immunology, Societies, business, Rare disease
Abstract

The COVID-19 pandemic has surprised the entire population. The world has had to face an unprecedented pandemic. Only, Spanish flu had similar disastrous consequences. As a result, drastic measures (lockdown) have been adopted worldwide. Healthcare service has been overwhelmed by the extraordinary influx of patients, often requiring high intensity of care. Mortality has been associated with severe comorbidities, including chronic diseases. Patients with frailty were, therefore, the victim of the SARS-COV-2 infection. Allergy and asthma are the most prevalent chronic disorders in children and adolescents, so they need careful attention and, if necessary, an adaptation of their regular treatment plans. Fortunately, at present, young people are less suffering from COVID-19, both as incidence and severity. However, any age, including infancy, could be affected by the pandemic.Based on this background, the Italian Society of Pediatric Allergy and Immunology has felt it necessary to provide a Consensus Statement. This expert panel consensus document offers a rationale to help guide decision-making in the management of children and adolescents with allergic or immunologic diseases.

Published
2020

41. Co-design for a circular approach in green technologies: Adaptation of reused building material as growing substrate for soilless cultivation of lettuce (lactuca sativa var. capitata)

Author

Mattia Accorsi, Alessandra Bonoli, Francesco Orsini, Giorgio Gianquinto, Sara Rizzo, Francesca Cappellaro, Rizzo, Sara, Cappellaro, Francesca, Accorsi, Mattia, Orsini, Francesco, Giorgio, Gianquinto, and Bonoli, Alessandra

Subjects
Engineering, Environmental Engineering, business.industry, Circular economy, Waste framework directive, Context (language use), Building material, Agricultural engineering, 010501 environmental sciences, Management, Monitoring, Policy and Law, engineering.material, 01 natural sciences, Pollution, 03 medical and health sciences, 0302 clinical medicine, circular approach, green technologies, lettuce, soilless growing, waste and water management, Sustainability, 030212 general & internal medicine, business, Urban resilience, Adaptation (computer science), 0105 earth and related environmental sciences, Waste disposal
Abstract

Improving the awareness of the responsibility of our actions is the basis of achieving the ambitious aim of waste management and prevention established by the European Waste Framework Directive 2008/98/CE and the most recent Circular Economy Package. Circular Economy is connected both to improve manufacturing technologies and also educate people towards responsible consumption and waste reduction. Due to its educational and institutional role, universities provide a context to rethink not only at our technological system through the adoption of eco-innovation, but also to reconsider the entire system of our values through the education of the society in many aspects of sustainability. Most sustainability education courses co-generate knowledge in an explorative way through inter- and trans-disciplinary methodologies. A Living-lab of sustainability called Terracini in Transizione is ongoing at the School of Engineering and Architecture of University of Bologna. This Living-lab offers new opportunities and useful feedback to research and teaching, as well as contributing to the engagement of engineering students. As a result of the Living-lab, various experimental green technologies for Urban Resilience have been co-designed by students, researchers and professors. In order to strengthen the sustainability of the proposed solutions, some of them are being constructed using recycled materials. The aim is to close the cycle of utilized materials, and the hereby presented experiment focuses on testing the water and rooting capacity of innovative recycled materials as substrates for edible plants cultivation in innovative green technologies (e.g. soilless cultivation). Tested substrates include a control (mix of perlitevermiculite) and recycled substrates, either made of crushed plasterboard panels, synthetic wadding or panels of rockwool. The present study addresses the definition of the hydraulic properties of the substrates and their effect on the yield of hydroponically grown lettuce (Lactuca sativa).

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