Search results for "TACL"
showing 10 items of 204 documents
Preferencias adaptativas: un obstáculo pendiente para la renta básica
2019
Resumen La renta básica proporciona a la ciudadanía una autonomía económica que se traduce en una libertad real para conducir sus vidas. Sin embargo, en este artículo defiendo que la renta básica no sería efectiva en situaciones de pobreza donde se generan preferencias adaptativas en las personas. Para mostrarlo analizaré las bases psicológicas del comportamiento de personas con preferencias adaptativas. A continuación, abordaré qué estrategias son las indicadas para revertir la situación de preferencias adaptativas. Implementar estas políticas permitirá que la renta básica pueda empoderar también a los más pobres.
COMPARATIVE ASSESSMENT OF SEVERAL MULTI-CRITERIA DECISION ANALYSIS TOOLS FOR MANAGEMENT OF CONTAMINATED SEDIMENTS
2007
Over the past several decades, environmental decision-making strategies have evolved into increasingly more sophisticated, information-intensive, and complexapproaches including expert judgment, cost-benefit analysis, toxicological risk assessment, comparative risk assessment, and a number of methods forincorporating public and stakeholder values. This evolution has led to an improved array of decision-making aids, including the development of Multi-CriteriaDecision Analysis (MCDA) tools that offer a scientifically sound decision analytical framework. The existence of different MCDA methods and the availability of corresponding software contribute to the possibility of practical implementat…
Zilo gaismu bloķējošo lēcu ietekme uz kontrastjutību
2018
Bakalaura darbs ir 21 lappaspusi garš, satur 9. attēlus, 1. tabulu un 39. literatūras atsauces. Darba mērķis ir novērtēt zilo gaismu bloķējošo lēcu ietekmi uz kontrastjutību. Mērījumi tika veikti, izmantojot Pelli-Robsona testu, kurš tika rādīts iPad telefonā. Mērījumā piedalījās 55 dalībnieki. Mērījumi tika veikti ar briļļu lēcām, kurām bija zilo gaismu bloķējošais klājums, kā arī ar lēcām, kurām bija tradicionālais pretatspīdumu klājums. Kontrastjutība bija labāka ar zilo gaismu bloķējošām lēcām nekā ar lēcām, kurām bija tradicionālais pretatspīdumu klājums (p<0.001). Dalībniekiem ar sūdzībām par žilbšanu kontrastjutības uzlabojums ar zilo gaismu bloķējošām lēcām bija lielāks nekā dalībni…
Bibliographie de l'histoire des politiques culturelles. France, XIXe-XXe siècles
1999
National audience; L’histoire des politiques et des institutions culturelles est aujourd’hui une composante clairement identifiée de l’école historique française. Présente au sein des mises au point disciplinaires1, cette histoire n’est plus ignorée des manuels d’histoire générale. L’histoire culturelle lui accorde une attention conforme à sa place dans l’évolution de la vie culturelle nationale. Bien plus, elle bénéficie désormais de manuels spécifiques, traduction éditoriale des avancées de la recherche4. Cette bibliographie qui compte 1891 numéros
Triterpenoid Saponins From the Stem Bark of Pentaclethra eetveldeana
2019
Two previously undescribed triterpenoid saponins together with 4 known ones were isolated from the stem bark of Pentaclethra eetveldeana De Wild. & Th. Dur. Their structures were elucidated by spectroscopic methods including 1D and 2D NMR experiments in combination with mass spectrometry as 3- O-β-D-glucopyranosyl-(1→2)-[β-D-glucopyranosyl-(1→3)]-β-D-glucopyranosyl-(1→4)-β-D-glucopyranosyl-(1→3)-α-L-rhamnopyranosyl-(1→2)-[β-D-glucopyranosyl-(1→4)]-α-L-arabinopyranosyloleanolic acid and 3- O-β-D-glucopyranosyl-(1→2)-[β-D-glucopyranosyl-(1→3)]-β-D-glucopyranosyl-(1→4)-β-D-glucopyranosyl-(1→3)-α-L-rhamnopyranosyl-(1→2)-[β-D-glucopyranosyl-(1→4)]-α-L-arabinopyranosylhederagenin.
Distance Learning during the COVID-19 Pandemic: Resources, Obstacles, and Emotional Implications for Italian Students in Higher Education
2022
The study examined how 807 undergraduate Italian students coped with synchronous, asynchronous, and blended learning environments during the COVID-19 pandemic. Strengths and weaknesses of online learning were collected via an electronic platform (SurveyMonkey) and then categorized by grounded theory analysis using ATLAS.ti 8.0 software. The results showed technical, practical, relational, organizational, and transformative features of online learning emerged, differentiated in synchronous, asynchronous, and blended modes. Emotional aspects also affected the evaluation of distance learning because depression and fear were more frequent among the students who found distance learning to be an …
A 60-night campaign on dwarf novae. - I. Photometric variability of SU UMa and YZ Cnc
1994
A 60-night campaign on SU UMa, YZ Cnc and some secondary targets was carried out during 1988 December and 1989 January at the Observatorio del Roque de Los Muchachos (the 1988 International Time Project). The aim was to study the behaviour of these dwarf novae through their outburst cycle. Here we present the overall light curves of the main targets, SU UMa and YZ Cnc, which show that the optical fluxes continue to decrease after the end of the outburst. For YZ Cnc we find that, during quiescence, orbital variability is present, which may be interpreted as modulation caused by the bright-spot region. Near the end of an outburst, a weak, sinusoidal variation is observed; we discuss the possi…
A three-dimensional smoothed particle hydrodynamics simulation of the active phase of SS Cyg-type discs and its implications for the mass transfer bu…
1993
We perform a smoothed particle hydrodynamics (SPH) three-dimensional simulation of the outburst phase of the accretion disc of a typical SS Cyg-like dwarf nova in the framework of the mass transfer burst model (MTBM), where we assume that the active phase is triggered by a sudden increase in the accretion rate due to some instability in the secondary's atmosphere. The evolution of the accretion disc is followed for a single orbital period, starting from the initial quiescent disc configuration obtained by us in a previous paper. This is a suitable integration time for determining the geometrical and physical properties of the disc in the impulsive phase and is comparable with observed outbu…
Nonlocal random motions: The trapping problem
2014
L\'evy stable (jump-type) processes are examples of intrinsically nonlocal random motions. This property becomes a serious obstacle if one attempts to model conditions under which a particular L\'evy process may be subject to physically implementable manipulations, whose ultimate goal is to confine the random motion in a spatially finite, possibly mesoscopic trap. We analyze thisissue for an exemplary case of the Cauchy process in a finiteinterval. Qualitatively, our observations extend to general jump-type processes that are driven by non-gaussian noises, classified by the integral part of the L\'evy-Khintchine formula.For clarity of arguments we discuss, as a reference model, the classic …
X-RAY SPECTROSCOPIC DIAGNOSIS OF A WIND-COLLIMATED BLAST WAVE AND METAL-RICH EJECTA FROM THE 2006 EXPLOSION OF RS OPHIUCHI
2009
Chandra HETG observations of RS Ophiuchi at day 13.9 of the 2006 outburst reveal a rich spectrum of emission lines from abundant ions formed over a wide temperature range (∼ 3 × 10 6 to 60 × 10 6 K) indicative of shock heating of the circumstellar medium by the expanding blast wave. Lines are asymmetric and strongly broadened (v ∼ 2400 km s −1 at zero intensity). Using simple analytical model profiles, we show how the lines are shaped by differential absorption in the red giant wind and explosion ejecta, and that shock heating to multimillion degree temperatures appears to have occurred preferentially in the direction perpendicular to the line of sight. We conclude that the asymmetric natur…