12 research outputs found
On the orbital and internal evolution of cluster galaxies
Galaxies inhabiting a cluster environment experience significant evolution in
their orbital motions throughout time; this is accompanied by changes in the
anisotropy parameter, measuring the relative importance of radial and
tangential motions for a given class of objects. Along with orbital changes,
galaxies in clusters are well known to undergo severe alteration in their
hot/cold gas content and star formation properties. Understanding the link
between the changes in the internal properties of galaxies and their orbital
motion is of crucial importance in the study of galaxy evolution, as it could
unveil the primary mechanism responsible for its environmental dependence. Do
the changes in the internal properties happen in parallel with those in the
orbital motion? Or are the orbital features at the time of infall what
determines the fate of the member galaxies? Alternatively: are the properties
of galaxies at a given time related to the coeval orbital anisotropy or are
they better related to the anisotropy at infall? In order to answer these
questions, we studied the orbital evolution of different galaxy populations in
the semi-analytic models of Guo et al. (2011) applied on to the Millennium
Simulation. For each class of objects, characterised by different internal
properties (such as age, star formation rate and colour), we studied the
anisotropy profile at redshift zero and its evolution by tracing the
progenitors back in time. We conclude that the orbital properties at infall
strongly influence the subsequent evolution of the internal features of
galaxies and that the overall anisotropy of the galaxy population tends to
increase with time.Comment: 11 pages, 9 figures. Accepted for publication in MNRA
Teacher / Student Partnerships in Online Video Corpus Construction and Annotation. Encouraging Higher Education Students’ Digital Literacy
Online video corpora constructed by Higher Education students play various roles in specialised digital learning. When supported by analytics, this can be a productive way of engaging with the multisemiotic processes associated with digital literacy. However, when reappraised, corpora thus produced often play significant roles in contexts other than those for which they were originally envisaged. The final section of the paper reflects on video corpora’s role in consolidating digital literacy in Higher Education as part of inter-university and cross-degree teacher-student partnerships
What If? Healthcare Simulations, Online Searchable Video Corpora and Formulating Hypotheses
The chapter describes how a searchable corpus of 100 healthcare simulation videos was constructed by students in one university and then used by undergraduates in another. As part of research into bespoke corpora that can be used in cross-university exercises in ELT writing, the chapter describes the results of this interuniversity project which explored the capacity of students in one university to challenge other groups of students to see whether they could describe the hypotheses presented in the corpus materials. The chapter describes the results of this investigation and draws conclusions about future research into ELT use of video corpora
Multimodal Ecological Literacy: Animal and Human Interactions in the Animal Rescue Genre
The MWSWeb Project: Accessing medical discourse in video hosting websites
Video corpora are one form of specialised corpora that can be used to promote the use of video-hosting sites, such as YouTube and Dailymotion, in domain specific university language learning courses. The article reports the experiences of a group of researchers, working in a variety of roles and from different perspectives, to promote the use of videos hosted on such sites in English for Medical Purposes (EMP) courses. The article describes how the MWSWEB platform modifies access to such sites in ways compatible with corpus-based exploration of domain-specific videos thereby encouraging university students to build their own video corpora under the guidance of their teachers
Voglia d'Italia. Il collezionismo internazionale nella Roma del Vittoriano
Si tratta di una esposizione, allestita presso Palazzo Venezia e il Complesso del Vittoriano, aperta dal 7.12.17 al 4.3.18, dedicata al collezionismo internazionale fra '800 e '900, promossa dal Polo Museale del Lazio. Curatore: Emanuele Pellegrini. Comitato scientifico: Francesca Baldry, Roberto Balzani, Flavio Fergonzi, Anna Maria Giusti, Donata Levi, Carl Brandon Strehlk
Voglia d'Italia. Il collezionismo internazionale nella Roma del Vittoriano
Si tratta di una esposizione, allestita presso Palazzo Venezia e il Complesso del Vittoriano, aperta dal 7.12.17 al 4.3.18, dedicata al collezionismo internazionale fra '800 e '900, promossa dal Polo Museale del Lazio. Curatore: Emanuele Pellegrini. Comitato scientifico: Francesca Baldry, Roberto Balzani, Flavio Fergonzi, Anna Maria Giusti, Donata Levi, Carl Brandon Strehlk
Il pubblico di Palazzo Davanzati nei libri dei visitatori. 1910-1924
A pochi mesi dall\u2019apertura di Palazzo Davanzati, Elia Volpi ebbe l\u2019idea di mettere a disposizione dei visitatori del suo museo privato un libro, dalle pagine bianche, sul quale ognuno avrebbe potuto lasciare la propria firma e un commento, seguendo forse l\u2019esempio di altri musei privati come quello di Frederick Stibbert o il milanese Bagatti Valsecchi. I due libri con le firme dei visitatori dal 1910 al 1924 furono poi donati, per volont\ue0 della moglie Marina Volpi, da Mario Vannini Parenti, genero dell\u2019antiquario e sono oggi conservati nel museo. Lo spoglio sistematico dei dati contenuti in questi straordinari documenti ha fatto emergere aspetti molto significativi riguardanti il numero e la provenienza dei visitatori di Palazzo Davanzati, cos\uec come i riflessi della societ\ue0 del tempo e del contesto storico, rappresentando un interessante caso di studio sul pubblico dei musei in un\u2019epoca precedente all\u2019affermazione del turismo di massa. \uc8 il museo visto dalla parte dei suoi visitatori, studenti, educande, persone comuni o aristocratici d\u2019alto lignaggio, turisti stranieri e non con la passione per Firenze e la sua storia, molti dei quali lasciano un commento, una battuta, anche una poesia, o semplicemente la traccia della loro visita. Davvero numerosi, poi, sono i nomi dei personaggi celebri: storici dell\u2019arte (Adolfo e Lionello Venturi, Roberto Longhi), artisti, letterati e intellettuali (Giovanni Boldini, Sibilla Aleramo, Benedetto Croce), mercanti e collezionisti (Salvatore Romano, Georges Wildenstein, Peggy Guggenheim) o personaggi dello spettacolo (Ettore Petrolini, Rodolfo Valentino). La loro presenza, cos\uec come quella di moltissimi architetti e decoratori stranieri e dei tanti visitatori meno noti, restituiscono un feedback importante a tutte quelle iniziative di promozione del museo che Elia Volpi aveva intrapreso sin dal giorno della sua inaugurazione, attraverso campagne fotografiche, pubblicazioni, cartoline illustrate ed eventi a tema