Search results for "Temporal"
showing 10 items of 1095 documents
Dwelling in Political Landscapes: Contemporary Anthropological Perspectives
2019
Time and Technology:
2021
By focusing the temporalities of care, the chapter analyzes a special relation between time and technology that underlies the making and persisting of media and infrastructures. I propose to differentiate between four types of care practices with corresponding different temporal patterns that are highly relevant for the functioning of technological systems in the past and present. First, the retrospective response to unforeseen interruptions (repair); second, the prospective routine procedure to prevent all forms of disorder (maintenance); third, a neglect of care that leads to devaluating infrastructure (abandonment) as well as—fourth—forms of revaluation in changing contexts (repurposing)…
L’istante necessario: tracce per un ethos del tempo
2002
Temporaneità
2022
Il saggio riflette sul tema della Temporaneità considerata, ormai, prassi strettamente connessa a quello dell’urban shrinkage, condizione centrale nel dibattito scientifico quanto nell’agenda politica di diverse città europee. Dagli anni ’90 a livello globale, nelle città e nei territori abbondano i luoghi dell’abbandono e dell’inutilizzato che ci restituiscono uno scenario di progressiva contrazione non solo demografica ma anche economica e sociale. In questo controverso quadro di mutazione strutturale delle città e dei territori si stanno sperimentando strategie, strumenti e schemi di governance efficaci per governare la decrescita e l’abbandono il cui comun denominatore è il ricorso …
Minimum configuration of thermal infrared bands for land surface temperature and emissivity estimation in the context of potential future missions
2014
Abstract A number of applications rely on the availability of high resolution TIR data, both in terms of spatial and temporal resolution, as well as in terms of spectral configuration. A consensus exists among the thermal community regarding the lack of such a kind of data, since only one operational sensor is currently providing multispectral TIR data at high spatial resolution (the case of ASTER, at 90 m spatial resolution and a 16-day revisit time). In this paper we propose a minimum multispectral configuration to allow the retrieval of both land surface temperature (LST) and emissivity ( e ) from thermal infra-red (TIR) data. For this purpose, we propose a minimum configuration based on…
Thermalization and condensation in an incoherently pumped passive optical cavity
2011
International audience; We study theoretically and numerically the condensation and the thermalization of classical optical waves in an incoherently pumped passive Kerr cavity. We show that the dynamics of the cavity exhibits a turbulent behavior that can be described by the wave turbulence theory. A mean-field kinetic equation is derived, which reveals that, in its high finesse regime, the cavity behaves essentially as a conservative Hamiltonian system. In particular, the intracavity turbulent field is shown to relax adiabatically toward a thermodynamic equilibrium state of energy equipartition. As a consequence of this effect of wave thermalization, the incoherent optical field undergoes …
Tiesību normu laika aspekti tiesiskā un demokrātiskā valstī
2015
Promocijas darbā „Tiesību normu laika aspekti tiesiskā un demokrātiskā valstī” ir izpētīts, kuros gadījumos likumdevējs ir tiesīgs pieņemt tiesību normas ar iedarbību uz pagātnē izveidotām tiesiskajām attiecībām. Izveidotu tiesisko attiecību ietekmēšana ir izvērtējama, balstoties uz tiesiskās paļāvības principu. Lai noskaidrotu, vai tiesiskās paļāvības princips ir aizskarts, ir jākonstatē, vai tiesību normām ir atpakaļejošs spēks laikā. Atšķirībā no sodu tiesībām, kur atpakaļejošs spēka identificēšana per se padara tiesību normas par prettiesiskām, citās tiesību nozarēs pēc atpakaļejoša spēka konstatēšanas vēl būtu jāizvērtē, vai sabiedrības interešu aizsardzība nav iespējama ar mazāku ieja…
Influence of respiratory rate and end-expiratory pressure variation on cyclic alveolar recruitment in an experimental lung injury model
2012
Introduction Cyclic alveolar recruitment/derecruitment (R/D) is an important mechanism of ventilator-associated lung injury. In experimental models this process can be measured with high temporal resolution by detection of respiratory-dependent oscillations of the paO2 (ΔpaO2). A previous study showed that end-expiratory collapse can be prevented by an increased respiratory rate in saline-lavaged rabbits. The current study compares the effects of increased positive end-expiratory pressure (PEEP) versus an individually titrated respiratory rate (RRind) on intra-tidal amplitude of Δ paO2 and on average paO2 in saline-lavaged pigs. Methods Acute lung injury was induced by bronchoalveolar lavag…
Time-Gated Raman Spectroscopy for Quantitative Determination of Solid-State Forms of Fluorescent Pharmaceuticals
2018
Raman spectroscopy is widely used for quantitative pharmaceutical analysis, but a common obstacle to its use is sample fluorescence masking the Raman signal. Time-gating provides an instrument-based method for rejecting fluorescence through temporal resolution of the spectral signal and allows Raman spectra of fluorescent materials to be obtained. An additional practical advantage is that analysis is possible in ambient lighting. This study assesses the efficacy of time-gated Raman spectroscopy for the quantitative measurement of fluorescent pharmaceuticals. Time-gated Raman spectroscopy with a 128 X (2) X 4 CMOS SPAD detector was applied for quantitative analysis of ternary mixtures of sol…
Prospettiva temporale e processi di apprendimento nella didattica universitaria. Uno studio trasversale
2022
Nell’ambito del progetto di ricerca dipartimentale Tempo e tempi dell’educazione (PIACERI 2020), il contributo presenta gli esiti di un’indagine volta ad analizzare la possibile correlazione tra prospettiva temporale e stili di apprendimento negli scenari della didattica universitaria a distanza e della didattica digitale integrata. In particolare, scopo della ricerca è indagare la possibile correlazione tra le mutate condizioni della didattica universitaria, a seguito della pandemia da Sars-CoV2, e la capacità di studentesse e studenti di progettare il loro futuro L’indagine è stata condotta presso il Dipartimento di Scienze della Formazione dell’Università degli Studi di Catania su un cam…