757 research outputs found
Meglio soli che male accompagnati: lo strano caso della comprensione di un testo scientifico
No full textIl contributo propone uno studio empirico che pone a confronto apprendimento individuale (condizione IL) e apprendimento di gruppo (condizione GBL) all’interno dell’ambiente digitale “Moodle”. Il contesto è la Facoltà di Psicologia dell’ALMA MATER STUDIORUM (Università di Bologna) e i partecipanti sono 263 studenti universitari del primo anno iscritti all’attività formativa pratica (AFP) “Introduzione alla letteratura e al linguaggio scientifico”. L’AFP è suddivisa in due corsi, corso A (max 150 iscritti con 3 lezioni in presenza al lunedì) e corso B (max 150 iscritti con 3 lezioni in presenza al martedì) ed è proposta in formato blended-learning (tre lezioni in presenza e tre attività on-line).
Sulla base dei dati raccolti ed elaborati, lo studio empirico proposto all’interno di questo contributo persegue due obiettivi principali:
- Proporre un metodo per costruire un profilo delle abilità relazionali degli studenti sulla base degli indici relazionali della SNA;
- Verificare il miglioramento nella comprensione di testi scientifici da parte degli studenti sulla base di differenti tipologie di apprendimento e di differenti profili per quanto concerne le abilità relazionali
Una proposta per formare formatori e-learning: Alternare e combinare varie modalità di lavoro.
No full textIl modello di costruzione di conoscenza applicato al contenuto universitario: implicazioni e modalità di valutazione
No full textProgettare il Role Taking per sostenere la partecipazione online e l'apprendimento di competenze
No full textFirms, Industries, Markets. Micro, Meso, and Macro Relationships in the Economics of Complexity
No full textThis book offers a rigorous discussion on how we can understand economic systems through a complexity lens. In particular, the author investigates the relationships between the firms, the industries, and markets (micro, meso, macro relationships), in order to help us better understand the main challenges of a representation of the economy using the “complex systems’ theory”. The author argues that the logic of governance in the paradigm of complex systemic rationality renounces anthropocentric vision of the organization and the possibility of total direction and control over systemic and intersystemic relations and accept a constructivist vision of these relations and their mutual interdependencies. Offering a novel perspective, this book contributes to improve our understanding of economic complex systems and how organizations at different levels interact
Early nutrition patterns and diseases of adulthood : a plausible link?
No full textIn the last decades several studies tested the hypothesis that at early development stages certain foods or nutrients, in specific amounts, fed during limited sensitive periods, may determine an endocrine metabolic asset leading to clinical alterations that take place decades later (early nutritional programming of long term health). Evidence is mounting for programming effects of infant feeding. Observational studies indicate that breast feeding, relative to formula feeding, reduces the risk for obesity at school age by about 20% even after adjustment for biological and sociodemographic confounders. Moreover, breastfeeding is constantly associated with increased neurodevelopmental scores up to early adulthood, while its outcome in terms of delayed decay of brain function is still unknown. Besides the environment surrounding breastfeeding, specific nutrients within human milk may play a direct role. With the introduction of solids the major changes in diet are represented by the sudden decrease of fat intake from 50 to 30% of total energy. A protein excess, commonly found throughout all European Countries, has been associated to a higher risk of adiposity in early childhood, as confirmed by first reports from a large European trial. The amount of fat does not seem to be associated with later adiposity, while its quality may affect blood lipoproteins, blood pressure and neurodevelopmental performance. Early intake of dietary fibers might also have beneficial effects. Epidemiologic data show that episodes of rapid growth (growth acceleration hypothesis), whichever the dietary habits, are associated with later unfavorable health conditions and should be prevente
Review: Cristina Mazzoni: She-Wolf. The Story of a Roman Icon. Cambridge University Press, New York 2010
No full textProfessor Cristina Mazzoni of the University of Vermont has written the first comprehensive study of the Roman she-wolf. This is a wide-ranging book in which this author illustrates various roles of the she-wolf by analyzing paintings, statues, maps, poetry, fiction, and historical narrative from antiquity to contemporary times. "She-Wolf. The Story of a Roman Icon" is a vividly written book, which skillfully combines diverse sources and standpoints into a coherent and readable study. The black-and-white photographs, some of which were taken by the author herself, support the text and illustrate the diversity of the visual representations of the she-wolf across the centuries.nonPeerReviewe
Premio AUTeC per la migliore Tesi di Dottorato in Cartografia e Topografia
No full textThis is the result of three years of work and research around GNSS permanent stations and
Networks, GNSS data processing and GNSS surveys technics and methodologies for several
applications.
It is possible to associate the main field of the research to the two main goals of GNSS
Networks: Realize a Reference system and distribute it to the users community.
Earth surface is continuously changing due to several phenomena, which may be
distinguished in periodic and irreversible phenomena.
With respect to periodic phenomena a mean position of a point on Earth surface can be
defined. With respect to irreversible phenomena each point occupies a specific position just
for an infinitesimal instant: estimated coordinates of a point (spatial referencing) must be also
time referenced.
A Reference System (RS) is, at first, defined by mathematical/physical laws rules. Then, a
realization (Reference Frame, RF) follows, by physical and geometrical measurements.
Terrestrial reference systems are needed to georeference the positions of points located on the
Earth. They can be distinguished in:
· Global Reference Systems
They are defined on the whole planet and realized by global networks of fundamental
points. Fundamental points coordinates are estimated by spatial geodesy techniques.
· Local Reference Systems
They are defined at the local scale (continental or regional) and realized by
subnetworks of fundamental points. Fundamental points coordinates are estimated by
terrestrial geodesy techniques. In this category is possible to mention the ED1950 (for
Europe) and ROMA1940 (for Italy).
Local reference systems, since they born before spatial geodesy, are nowadays decreasing of
importance in terms of points georeferencing, but they still have historical significance and
are used in cartographic applications.
After the birth of spacial geodesy, like GNSS (Global Navigation Satellite System), it was
possible to define and realize global reference systems. The nodal point of this innovation is
the realization of the global reference system by GNSS permanent stations networks.
During the Ph.D. activities a deep analysis of global reference systems research was carried
out. In particular, GNSS data processing techniques and skills were acquired. This aspect of
the research achieved the goal with the author involvement, as Geodesy and Geomatics
Group member, into the realization by the Italian Military Geographic Institute (IGM) of the
European Reference System in Italy. The switch form the old static realization (IGM95) to a
GNSS permanent station based realization was made official and published by IGM in
February 2009 with the National Dynamic Network (RDN) presentation: 100 GNSS
permanent stations homogenously distributed in the Italian Country.
Also the official permanent station of the La Sapienza Rome University, M0SE, of which
maintenance and inclusion in the European Permanent networ
The cryptic interplay between systemic lupus erythematosus and infections
No full textThe underlying trigger for systemic lupus erythematosus (SLE) has remained elusive, and multiple interacting environmental and genetic factors likely contribute to the onset and perpetuation of the disease. Among environmental influences, infectious agents have been suggested to play a pivotal role in driving autoimmunity pathogenesis via structural or functional molecular mimicry, the expression of proteins that induce cross-reactive responses against self-antigens, and the aberrant activation or apoptosis of different immune system cells in the context of a peculiar genetic background. The increased viral load and changing subsets of lytic or latent viral proteins observed in selected populations with SLE have indicated that common viruses, such as Epstein-Barr virus, parvovirus B19, cytomegalovirus, retroviruses and transfusion-transmitted viruses, might be triggers for this disease. Alternatively, some infectious agents might exert a protective effect from autoimmunity. Existing achievements have not been fully investigated and clarified. Thus, the aim of this review is to analyze the medical literature within the last 15years regarding the role of infectious agents in the pathogenesis of SLE
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