3,913 research outputs found
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Audición y equilibrio en guardavidas
No full textEl presente estudio tiene como objetivo principal determinar el estado de la audición y del equilibrio en los guardavidas que trabajaron durante la temporada de verano 2012-1013 en la ciudad de Mar del Plata, y detectar las patologías otovestibulares más frecuentes.
Se realizaron otoscopias, pruebas vestibulares y audiometrías. Como resultado, el 66% de la muestra tiene audición normal y el 95% no presentó indicios de patologías vestibulares. Las patologías más frecuentes son las Hipoacusias Neurosensoriales y los osteomas.
En conclusión el estado de la audición de los guardavidas es predominantemente normal, así como el estado del equilibrio. En cuanto a las patologías más frecuentes encontradas son las hipoacusias Neurosensoriales, cuyas causas no estarían relacionadas con el medio ambiente laboral. No así sucedió con la segunda patología encontrada, los osteomas. Etiológicamente se presentan como consecuencia de exposición a aguas y temperaturas frías.Fil: Paoletti, Daniela. Universidad FASTA. Universidad FASTA. Facultad de Ciencias Médicas; Argentina.Fil: Colacilli, Noemí. Universidad FASTA. Universidad FASTA. Facultad de Ciencias Médicas; Argentina
I giovani e il lavoro: prospettive e ricerca di senso. Illustrazione dei risultati della ricerca
No full textISFOL, Fondazione Patrizio Paoletti, Di Giuseppe T., Paoletti P., Pavoncello D., Serantoni G., I giovani e il lavoro: prospettive e ricerca di senso. Illustrazione dei risultati della ricerca, Roma, Università La Sapienza, 6 ottobre 2016. Isfol OA: Presentation. Qual è la rappresentazione del lavoro nei giovani? A quale senso o non senso è collegato l’idea del lavoro? Dove pongono lo sguardo i nostri giovani?
Quali punti di forza esprimono? Quali le competenze e le abilità che possono aiutare i giovani a ridisegnare il proprio panorama professionale? Queste, le domande della ricerca presentata nel presente documento. 06/10/2016presentation. qual è la rappresentazione del lavoro nei giovani? a quale senso o non senso è collegato l’idea del lavoro? dove pongono lo sguardo i nostri giovani?
quali punti di forza esprimono? quali le competenze e le abilità che possono aiutare i giovani a ridisegnare il proprio panorama professionale? queste, le domande della ricerca presentata nel presente documento. 06/10/2016 i giovani e il lavoro: prospettive e ricerca di senso. illustrazione dei risultati della ricerca tania di giuseppe patrizio paoletti daniela pavoncello grazie seranton
L'uso delle tecnologie didattiche digitali a scuola. Due esplorazioni nella formazione e nella didattica
No full textLa mia tesi di dottorato è suddivisa in due parti, che separano l’impianto teorico da quello pratico. Nella prima parte della tesi ho illustrato il quadro teorico sul tema delle tecnologie didattiche digitali, i framework sulle competenze digitali degli insegnanti e sulla formazione all’uso delle tecnologie. Il primo capitolo mi è servito per descrivere il quadro teorico relativo alla formazione delle competenze digitali degli insegnanti, all’uso delle tecnologie didattiche nella scuola italiana (con cenni ai contesti internazionali) e al loro impatto educativo, alle azioni di innovazione intraprese dal Miur con il Piano nazionale Scuola Digitale (Pnsd). Nel secondo capitolo ho presentato la situazione delle scuole italiane durante la prima fase della pandemia, descrivendo le principali ricerche realizzate, per comprendere l’impatto della situazione emergenziale sulla Didattica, che ha avuto come prima conseguenza la trasformazione in Didattica a distanza mediata dalle tecnologie digitali.
La seconda parte della tesi è stata dedicata alla metodologia della ricerca e ai risultati. Ho presentato subito la struttura delle due esplorazioni realizzate: una sulla formazione dei docenti e l’uso delle tecnologie didattiche digitali nel contesto trentino e l’altra estesa a tutto il territorio nazionale, con un approfondimento della ricerca verso la didattica con le tecnologie, durante la prima fase della pandemia di Covid-19. Nel terzo capitolo ho descritto la metodologia della ricerca trentina: gli obiettivi e le domande di ricerca, le peculiarità dell’esperienza di formazione proposta ai docenti incontrati e gli strumenti adottati per l’esplorazione sul campo. Nel quarto capitolo ho illustrato i risultati della ricerca nel contesto trentino, distinguendo tra le azioni proposte ai docenti e quelle proposte agli Animatori digitali e nel quinto capitolo ho presentato il questionario esplorativo sulla Didattica a distanza, pensato in relazione anche alle pratiche pedagogiche dei docenti e alle loro percezioni di efficacia, e condiviso i risultati e le analisi dei dati raccolti con il questionario sulla Dad. Infine, ho stilato le conclusioni del mio lavoro e le prospettive future di ricerca
Small Scale CMB Anisotropies with Planck: Constraints on Primordial Magnetic Fields and the Impact of Foreground/Secondary Anisotropy Residuals
No full textThe main subject of the thesis is the study of small sale Cosmic Microwave Background (CMB) radiation anisotropies. In particular two topics are investigated. The first concerns the study of the impact of a stochastic background of primordial magnetic felds (PMF) on CMB anisotropies intemperature and polarization and the derivation of the constraints on PMF with CMB data; the second topic concerns the study of the impact of small scale foreground and secondary anisotropy residuals on cosmological parameters extracted with CMB data in the contest of the Planck mission.
The first part of the thesis is devoted to the investigation of all the types of perturbations induced by PMF: scalar, vector and tensor. We present the cosmological perturbation evolution equations with PMF contributions and the original results we obtained for magnetized initial conditions and for the analytical Fourier spectra of the PMF energy momentum tensor relevant components. In order to investigate the impact of magnetized perturbations on CMB anisotropies, it has been developed an extension of the public Einstein-Boltzmann code CAMB, which computes the angular power spectrum for CMB anisotropies, where all the PMF contributions have been included. The results show that the dominant PMF contribution is given by vector perturbations on small angular scales where primary CMB is suppressed by the Silk damping. In order to derive the constraints on PMF with CMB data we have developed an extension of the Markov Chain Monte Carlo public code CosmoMC, this extension is connected with the modified version of CAMB and includes PMF parameters together with the standard ones. We show the constraints we obtained with current CMB data and the forecasts we made for Planck and the satellite COrE proposal. The results show that with current data of WMAP7, ACBAR, QUaD and BICEP the PMF amplitude is constrained to less than few nGauss, with Planck the constraints are improved by a factor two and with a mission like COrE it would be possible to constrain PMF amplitude to less than nGauss.
In the thesis it is investigated also the non-Gaussian contribution of PMF to CMB anisotropies. In particular, a stochastic background of PMF has a fully non-Gaussian contribution to CMB anisotropies and induce a non-zero bispectrum. We have derived the CMB magnetized bispectrum generated by scalar magnetized perturbations on large angular scales and we have derived the constraints on PMF with current non-Gaussianity data, we show that these constraints are comparable to the ones derived with CMB angular power spectrum data.
The second part of the thesis is devoted to the investigation of the im¬pact of foreground and secondary anisotropy residuals on small scales on the cosmological parameters with Planck data. In particular the contributions which are relevant for Planck frequencies and capabilities are: the residual point source contributions and the residual Sunyaev Zeldovcih effect. For what concerns the point source contribution we have considered both the Poissonian term for all unresolved sources and the clustering term for the infrared galaxies. In order to marginalize over the residual contributions in cosmological parameters extraction, we have developed hybrid theoretical/empirical parametrizations for each residual considered. Together with the spectral shape of the sig¬nals it is parametrized also their frequency dependence, this allowed the reductio n of the number of parameters necessary to describe the residuals to the minimum of three, one for each contribution. We have developed an extension of the CAMB+CosmoMC code which includes the marginalization over the considered residual contributions with the approach we have presented. The code is used to investigate the impact of the foreground and secondary anisotropy residuals on the cosmological parameters and in particular, the results show the importance of the marginalization in order to not introduce biases. In the thesis it is addressed also the topic of the frequency channel combination. In particular, we have developed an original empirical method to combine the frequency channels. We show the comparison between the results obtained with this technique and the ones obtained with the standard inverse noise variance weighting method
Kidney transplantation from deceased donors with vaccine‐induced thrombosis and thrombocytopenia (VITT): Definitely feasible and safe?
No full textThe impact of a stochastic background of primordial magnetic fields on scalar contribution to cosmic microwave background anisotropies
No full textImpact of stochastic primordial magnetic fields on the scalar contribution to cosmic microwave background anisotropies
No full textWe study the impact of a stochastic background of primordial magnetic fields on the scalar contribution
of cosmic microwave background (CMB) anisotropies and on the matter power spectrum. We give the
correct initial conditions for cosmological perturbations and the exact expressions for the energy density
and Lorentz force associated to the stochastic background of primordial magnetic fields, given a powerlaw
for their spectra cut at a damping scale. The dependence of the CMB temperature and polarization
spectra on the relevant parameters of the primordial magnetic fields is illustrated
Accurate evaluation of edges and dip of faults and contacts through the Volume Upward Continuation (VUC) of gravity data
No full textIn this paper we demonstrate the efficiency of a new approach to upward continue potential field data, the Volume Upward Continuation (VUC), coupled with traditional horizontal derivative techniques. By using VUC it is immediate showing that upward continuation of the signal to higher altitudes yield information about progressively deeper sectors of the discontinuity. In particular, looking at the position of the maxima of the horizontal derivative of the continued field, we can observe that they will be laterally shifted toward the dipping direction of the discontinuity, in a way proportional to the continuation height.
We applied VUC followed by horizontal derivative to a gravity profile extracted from a gravity survey on the Venelin-Aksakov fault in Bulgaria, in order to get further information on the dipping direction of this structure
Imparare le lingue per abbracciare il mondo
No full textL’autrice che si colloca, come Daniela Zorzi, tra i fautori di una linguistica “impegnata”, propone in ricordo della studiosa amica, una riflessione sul ruolo cruciale del multilinguismo e delle lingue- culture, per il successo professionale e il benessere sociale, nella società contemporanea. Il multilinguismo appare come un’urgenza educativa che interpella studiosi e formatori a tutti i livelli al fine di promuovere nei giovani un apprendimento consapevole efficace ed autonomo.Multilingualism constitutes an urgent objective for education, which needs to involve teachers and researchers at all levels if we are to promote effective and autonomous learning in the young. Like Daniela Zorzi, the author considers herself a socially engaged linguist, and in memory of her friend’s work, offers a reflection on the key roles of languages and cultures and of multilingualism for professional success and social welfare today
- …
