Search results for "Presentation"
showing 10 items of 2405 documents
The representation of reality in teaching: A 'mimetic didactic' perspective on examples in plenary talk
2016
ABSTRACTUsing an observation study in Norwegian lower-secondary school classrooms this paper explores how subject matter and students’ real-world experiences are linked within the use of examples in teaching. The theory of “mimetic didactics” claims that giving students the possibility to interpret examples as both subject matter and something that is relevant to their own lives becomes a possibility through imaginative “as-if” experiences. The study finds that “as-if” experiences in the data are created by identifying with others and through a context-dependent knowledge base. The topics in the examples actualise being human within the political, economic and existential realm and offer po…
Lie Algebras Generated by Extremal Elements
1999
We study Lie algebras generated by extremal elements (i.e., elements spanning inner ideals of L) over a field of characteristic distinct from 2. We prove that any Lie algebra generated by a finite number of extremal elements is finite dimensional. The minimal number of extremal generators for the Lie algebras of type An, Bn (n>2), Cn (n>1), Dn (n>3), En (n=6,7,8), F4 and G2 are shown to be n+1, n+1, 2n, n, 5, 5, and 4 in the respective cases. These results are related to group theoretic ones for the corresponding Chevalley groups.
Introduction to Gestural Similarity in Music. An Application of Category Theory to the Orchestra
2019
Mathematics, and more generally computational sciences, intervene in several aspects of music. Mathematics describes the acoustics of the sounds giving formal tools to physics, and the matter of music itself in terms of compositional structures and strategies. Mathematics can also be applied to the entire making of music, from the score to the performance, connecting compositional structures to acoustical reality of sounds. Moreover, the precise concept of gesture has a decisive role in understanding musical performance. In this paper, we apply some concepts of category theory to compare gestures of orchestral musicians, and to investigate the relationship between orchestra and conductor, a…
Children in advertisements : visual representation of children in Time magazine, volumes of 1994, 2004 and 2014
2017
Mainosten representaatiot vaikuttavat käsitykseemme itsestämme ja muista. Vaikka mainontaa on tutkittu laajasti, lapsia ja mainontaa on tutkittu lähinnä siitä näkökulmasta, millaisia mainoksia lapsille on suunnattu tai miten mainonta vaikuttaa lapsiin. Tämän tutkimuksen tarkoituksena on tarkastella lasten representaatiota aikuisille suunnatuissa mainoksissa. Lisäksi halutaan selvittää ovatko mainokset muuttuneet vuosien aikana. Tutkimuksen aineistona ovat Time-lehden vuosikerrat 1994, 2004 ja 2014. Aineistossa on kaiken kaikkiaan 80 erillistä mainosta, joiden pohjalta tyypillinen representaatio luotiin. Kyseisinä vuosina mainosmäärät aikajärjestyksessä olivat: 19, 37 ja 24. Teoreettinen vii…
On presentations for mapping class groups of orientable surfaces via Poincaré's Polyhedron theorem and graphs of groups
2021
The mapping class group of an orientable surface with one boundary component, S, is isomorphic to a subgroup of the automorphism group of the fundamental group of S. We call these subgroups algebraic mapping class groups. An algebraic mapping class group acts on a space called ordered Auter space. We apply Poincaré's Polyhedron theorem to this action. We describe a decomposition of ordered Auter space. From these results, we deduce that the algebraic mapping class group of S is a quotient of the fundamental group of a graph of groups with, at most, two vertices and, at most, six edges. Vertex and edge groups of our graph of groups are mapping class groups of orientable surfaces with one, tw…
P463 COVID-19 vaccination willingness and hesitancy in patients with Inflammatory Bowel Diseases (IBD): analysis of determinants in a national survey…
2021
Abstract Background Vaccine hesitancy, the delay in acceptance or refusal of vaccination despite its availability, represents a threat to the diffusion and lethality of infectious diseases. COVID-19 vaccination has been recommended by national and international organizations in patients with Inflammatory Bowel Diseases (IBD). The aim of the study was to evaluate COVID-19 vaccine willingness and hesitancy in a population of Italian patients with IBD, and their determinants. Methods In February 2021 an online questionnaire focused on COVID-19 vaccine was proposed to a representative sample of Italian IBD patients. Socio-demographic characteristics, IBD features, lifestyle, perception of COVID…
O-195 The impact of the COVID-19 outbreak on psychological distress due to the cancellation of ART. A systematic review and meta-analysis
2021
Abstract Study question Is there evidence that infertile patients have been more likely to experience distress during the COVID-19 outbreak with the consequent interruption of treatment plans? Summary answer High levels of psychological distress among infertile patients have been found during the COVID-19 pandemic, greater than that reported in the general population. What is known already Preliminary research on the negative consequences of the COVID-19 outbreak on mental health evidenced heightened levels of anxiety, depression and post-traumatic stress in some clinical populations as well as in community samples. However, little is known about the impact of COVID-19 on psychological dist…
Brauer correspondent blocks with one simple module
2019
One of the main problems in representation theory is to understand the exact relationship between Brauer corresponding blocks of finite groups. The case where the local correspondent has a unique simple module seems key. We characterize this situation for the principal p-blocks where p is odd.
"Table 33" of "Measurement of the proton and deuteron structure functions, F2(p) and F2(d), and of the ratio sigma(L)/sigma(T)."
1997
Measurement of R=(SIG(L)/SIG(T)).
Digital Technologies for the Fruition of Archaeological Heritage. The Visualisation of the Temple C Metopes Polychrome in Selinunte
2019
Through the tools of the representation this paper investigates a hypothetical virtual re-presentation of the metopes original polychromies. The reconstructive interpretative process was carried out through a critical reading of historical and iconographic sources. Starting from the reading of drawings made by Angell and Harris at the time of the archaeological finds, of Hittorff’s studies and watercolors, and of some coloured fragments still observable in the original metopes, the graphic elaborations that simulate the original polychromes have been prepared. The purpose of this study and of the analysis here described is the experimentation of an interactive visualisation application (aug…