19 research outputs found
L’uso delle immagini nella ricerca teologica: Una questione di metodo
No full textThis article intends to explore the appropriateness and the way in which images in theological research are employed and to this end to set out some adequate guidelines. Having defined the gnoseological nature and value of images, the author proposes the reappropriation of some fundamental in-struments proper to the phenomenological method considered particularly suitable to the use of images in theology. Subsequently, the paper will exam-ine the advantages and limitations inherent in the approach to reality and to the contents of faith capable of enhancing the contribution of imagina-tion, which consist in particular in the opportunity of developing a reflection which is unaffected by an excess of abstraction but open to a reconciliation between thought and action, between theology and spirituality. Finally the author offers some useful indications in order to set out the attention to im-ages according to a biblical hermeneutic; a necessity which corresponds to the effort of post-conciliar theology to make the listening to the Word of God the heart of theological reflection.L’articolo intende esplorare opportunità e modalità dell’utilizzo di immagini nella ricerca teologica e sviluppare alcune linee guida adatte allo scopo. Dopo aver definito la natura e il valore gnoseologico dell’immagine, si propone di re-cuperare alcuni strumenti propri del metodo fenomenologico particolarmente adatti alla valorizzazione delle immagini in teologia. In seguito vengono presi in considerazione i vantaggi e i limiti che ineriscono ad un approccio alla realtà e ai contenuti della fede capace di valorizzare il contributo dell’imma-ginazione e che consistono, in particolare, nell’opportunità di sviluppare una riflessione non affetta da eccesso di astrazione, ma aperta alla riconciliazione tra pensiero e azione, tra teologia e spiritualità. Infine, vengono offerte alcune indicazioni utili a declinare l’attenzione per le immagini in una ermeneutica biblica, esigenza che corrisponde allo sforzo della teologia postconciliare di fare dell’ascolto della Parola di Dio il cuore della riflessione teologica
Measurement, Simulation, and Compact Modeling of Complex Electron Dynamics
No full textSystems containing large numbers of electrons can exhibit surprisingly complex and rich dynamics. In this dissertation, we ask: What is the minimum necessary detail in measurement or data-driven modeling and simulation to capture complex dynamics manifesting from these systems? To answer this, we integrate experiment, simulation, and theory to understand their complex dynamics. In this dissertation, we examine two such systems: (i) a superparamagnetic tunnel junction (SMTJ) and (ii) charged-particle beam dynamics.
We first consider the deterministic-stochastic behavior of a constant-current driven SMTJ, where we create a measurement-driven overdamped Langevin model capturing statistical properties of the device. We show both how this model captures device statistics across time scales and how it can be refined to capture higher-order behavior.
We next examine the centroid motion of a charged-particle beam and propose a method for understanding and predicting it using an interpretable, data-driven approach whose output is directly identifiable to terms in underlying low-dimensional evolution equations. We derive the evolution equations solely on the basis of data—with no recourse to an underlying first principles model. We compare and contrast our methodology with both a machine learning technique and a first principles model, and we show that we can learn interpretable equations for nonlinear beam dynamics at lower computational cost while achieving comparable accuracy.
Lastly, we investigate the phase space evolution of a charged-particle beam. Accurate knowledge of the phase space at beam creation is crucial for understanding and predicting beam dynamics. We measure a velocity space modulation to initialize the phase space of first principle simulations and capture beam statistics and internal beam structure—resembling a cruciform—with high fidelity. This contrasts with both employed first principles models—which do not account for beam structure as they assume a uniform beam cross section—and simulations using ideal phase space distributions. Finally, we demonstrate sensitivity to beam and lattice parameters varied within experimental measurement error
Does immigration lead to a reduction of native wages and employment? : a review of the regional labour market outcomes of migration in Germany and the UK
No full textIn this thesis the regional effects of immigration onto native wages and employment in the United Kingdom and in Germany were examined. Using the regional survey data of the British QLFS from 1993-2009, the estimation results confirmed that foreign workers and British are imperfect substitutes. Natives and immigrants with middle education are found to have the highest elasticity of substitution. Unsurprisingly, the largest percentage of foreign population has been found to be in England. In the analysed time of 1993 until 2009, only middle educated British experienced negative earnings and employment effects caused by immigration. Taking the wage and employment impacts for natives of all three skill groups in the four British countries and the UK itself into account, it can be seen that the positive wage effects were numerically larger than the negative employment changes. Applying the individual data of the German SOEP from 1984-2007 (from 1994 including data about East Germany), imperfect substitution between regional Germans and foreigners were determined. Examining several regions of West Germany (North- West and Middle-South-West) in the time frame of 1994-2007, it could be seen that natives with low and middle education gained in their wages but lost in their employment to immigrants of similar education. However, highly skilled German P a g e | 2 citizens were confronted with a wage loss but higher employment. The analysis of the effect of immigration on native wages and employment in East Germany led to interesting results. Low, middle and highly educated East German natives experienced either a minimal wage increase or no wage change. Considering the employment in East Germany, low educated natives saw a small rise in their employment. However, no change could be found in the employment of middle and highly skilled workers in East Germany.EThOS - Electronic Theses Online ServiceGBUnited Kingdo
Calcium dynamics in blood and milk in dairy cows after calving
No full textInternational audienceRoutine identification of cows suffering from subclinical hypocalcemia around calving has great significance in dairy cattle to adapt prevention programs. Milk and blood calcium contents may be correlated, as the calcium sensing receptor contributes to the regulation of calcium secretion into milk according to blood calcium level. Milk would be a more convenient sample to identify cows at risk. Thus, our objective was to describe milk calcium (MiCa) dynamics and plasma calcium (PlCa) one during the week after calving and to assess their correlation. Eight primiparous and 12 multiparous Holstein dairy cows, milked twice a day, were submitted to morning daily simultaneous blood and milk sampling from the day of calving to 7 d later. Plasma and milk samples were analyzed for total calcium content by atomic absorption spectrometry. Plasma and milk calcium dynamics were first described using PROC GLIMMIX in SAS, with a generalized linear mixed model with repeated values. Time, parity and the interaction between both were included as fixed effect and cow as random effect. Post hoc tests were then realized to identify sampling times which differ between them. Finally, a Spearman correlation matrix aimed to identify sampling days with best correlations between PlCa and MiCa. PlCa increased from the day of calving to d 7 (time effect, P = 7.10−11), and decreased with parity (P = 0.002). Primiparous and multiparous PlCa dynamics were different (interaction time × parity, P = 0.007), as multiparous had lower PlCa on the day of calving (75 ± 12 mg/L) and the day after (80 ± 12 mg/L), and primiparous had lower PlCa only the day of calving (89 ± 5 mg/L). MiCa was higher in the first 2 d after calving, sharply decreased until d 3 before stabilizing over the following days (time effect, P = 2.10−9). MiCa was not affected by parity and correlations between PlCa and MiCa greatly depended on parity. Higher correlations were observed between PlCa on d 3 and MiCa on d 4 when considering only multiparous cows (r = −0.8, P = 0.002). Our results suggest that milk calcium measurements might be effective to assess blood calcium levels after calving in multiparous dairy cows, but these results remain to be confirmed in broader experimental conditions
Morphological Means of Emotions Expression in Speech of Actor – Transformed Linguistic Personality
No full textThe article presents the comparative analysis of morphological means used by the actor in two different spheres of communication: in an interview and in a film where he plays one of the roles. The study data include the speech of the famous German actor and TV-host Oliver Pocher. The analysis method is designed basing on such notions as «real linguistic personality», «transformed linguistic personality» and «script linguistic personality». The author draws parallels between the morphological units used by the actor for emotions expression while acting as an interviewee and the morphological units employed by him in the process of creative transformation. Affixational elements and comparison degrees of adjectives and adverbs found in texts (interviews and dialogues between film characters) are analyzed. The author comes to the conclusion that the peculiarities of using morphological means of emotions expression in interviews and in acting prove the interpenetration of the actor’s real and transformed linguistic personalitiesПроводится сопоставительный анализ морфологических средств, используемых актером в двух разных сферах коммуникации: в интервью и в фильме, где он играет одну из ролей. Материалом исследования стала речь известного немецкого актера и телеведущего Оливера Пошера. Методика анализа разработана с опорой на понятия «реальная языковая личность», «перевоплощенная языковая личность», «сценарная языковая личность». Устанавливаются параллели между морфологическими единицами, которые актер использует для выражения эмоций, выступая в роли интервьюируемого, и морфологическими средствами, к которым он прибегает при творческом перевоплощении. Анализируются представленные в текстах (интервью и диалогах между героями фильмов) аффиксальные элементы, степени сравнения прилагательных и наречий. Автор приходит к выводу, что особенности использования морфологических средств выражения эмоций в интервью и при исполнении ролей подтверждают взаимопроникновение реальной и перевоплощённой языковых личностей актер
