Search results for "SWI"

More Relevant Today Than Ever: Past, Present and Future of Media Performance Research

2020

Media performance is constitutive for functioning democracies. But what is the situation regarding media performance in the age of digitalisation? And how can media performance continue to be assured under the current difficult economic conditions for the news industry? In this essay, we give a short overview of how media performance research has developed from the introduction of private broadcasting to the spread of the Internet and social media. In the course of this development, the initial focus of media performance research on media content has broadened to include media quality from the user perspective. We show how the contributions to this thematic issue relate with existing lines …

Obywatelska inicjatywa ustawodawcza na przykładzie Szwajcarii

2018

Obywatelska inicjatywa ustawodawcza daje możliwość współdecydowania o najważniejszych kwestiach w państwie. W artykule przedstawiono pojęcie inicjatywy ludowej oraz jej podział ze względu na formę, zasięg terytorialny, przedmiot inicjatywy oraz stopień pośrednictwa. Opisano również procedurę obywatelskiej inicjatywy ustawodawczej w sprawie częściowej oraz całkowitej zmiany konstytucji w Szwajcarii. Wskazano praktykę stosowania tej formy demokracji bezpośredniej na każdym szczeblu administracji publicznej Konfederacji Szwajcarskiej.

Photoactive Yellow Protein Chromophore Photoisomerizes around a Single Bond if the Double Bond Is Locked

2020

Photoactivation in the Photoactive Yellow Protein, a bacterial blue light photoreceptor, proceeds via photo-isomerization of the double C=C bond in the covalently attached chromophore. Quantum chemistry calculations, however, have suggested that in addition to double bond photo-isomerization, the isolated chromophore and many of its analogues, can isomerize around a single C-C bond as well. Whereas double bond photo-isomerization has been observed with x-ray crystallography, experimental evidence for single bond photo-isomerization is currently lacking. Therefore, we have synthesized a chromophore analogue, in which the formal double bond is covalently locked in a cyclopentenone ring and ca…

Individual vulnerability to stress is associated with increased demand for intravenous heroin self-administration in rats

2019

AbstractOpioid use is a widespread epidemic, and traumatic stress exposure is a critical risk factor in opioid use and relapse. There is a significant gap in our understanding of how stress contributes to heroin use, and there are limited studies investigating individual differences underlying stress reactivity and subsequent stress-induced heroin self-administration. We hypothesized that greater individual vulnerability to stress would predict higher demand for heroin self-administration in a within-subjects rodent model of stress and heroin use comorbidity. Male rats were exposed to inescapable intermittent swim stress and individual biological (corticosterone) or behavioral (open field, …

Nie tylko prezydent. Szkolne i studenckie lata w biografii Gabriela Narutowicza

2020

Aim: Historians often point out that an average Pole knows Gabriel Narutowicz as the first president of the Second Republic, murdered in the assassi-nation attempt on December 16th, 1922 in Zachęta. Unfortunately, Poles have little information about his education and professional achievements. That is why his education was presented in the article.Methods: A descriptive and explanatory method.Results: The analysis of biographical materials carried out for the purposes of the article indicates that Gabriel Narutowicz was a person who obtained a very good education. In a great deal it was the crew of his mother ‒ Wiktoria, née Szczepkowski, who initially guaranteed him home schooling and then…

Une frontière internationale comme catalyseur de dynamiques ?

2019

A new epigenetic cross-talk links effete and iswi in determining chromatin structure

2011

Impact of Nonlinear Inductor on Efficiency and Power Losses in a SMPS: a Case Study

2022

This paper proposes a comparative analysis focused on losses in two Switched Mode Power Supplies, adopting a linear inductor and an inductor operated up to saturation, respectively. The use of the nonlinear inductor saves weight and cost on the magnetic material, which is of great interest for automotive applications; however, it increases the peak current and can increase losses. The analysis aims to compare, by simulations, the impact on the efficiency of the different current waveforms throughout the converter. The losses are discussed in detail and calculated for each component of the converters.

Multipactor radiation analysis within a waveguide region based on a frequency-domain representation of the dynamics of charged particles

2009

[EN] A technique for the accurate computation of the electromagnetic fields radiated by a charged particle moving within a parallel-plate waveguide is presented. Based on a transformation of the time-varying current density of the particle into a time-harmonic current density, this technique allows the evaluation of the radiated electromagnetic fields both in the frequency and time domains, as well as in the near- and far-field regions. For this purpose, several accelerated versions of the parallel-plate Green's function in the frequency domain have been considered. The theory has been successfully applied to the multipactor discharge occurring within a two metal-plates region. The proposed…

Erfahrungstransfer aus der Schweiz an das nationalsozialistische Deutschland. Ricarda Huchs Frühling in der Schweiz

2020

The article presents Ricarda Huchs attitude towards the dictatorship of natio- nal socialism in Germany, from which the writer officially disbanded herself in 1933 by resigning from the membership of the Prussian Academy of Fine Arts and concluding at the same time that the Germanness in her opinion does not mean centralization of power, brutal methods and diffusion of people who think differently. This attitude is reflected in the autobiographical text of 1938, Friihling in der Schweiz [Spring in Switzerland] which refers to the experiences and observations of the writer during her stay in Switzerland in 1887-1896. Those memoirs serve as a kind of political message which simultaneously sho…