A simple harmonic model as a caricature for mismatch and relaxation effects for ion hopping dynamics in solid electrolytes

We formulate a simple harmonic mean-field model with N+1 particles and analyse the relaxation processes following a jump of one of these particles. Either the particle can jump back (single-particle route) or the other N particles adjust themselves (multi-particle route). The dynamics of this model is solved analytically in the linear response regime. Furthermore we relate these results to a phenomenological approach by Funke and coworkers (concept of mismatch and relaxation: CMR) which has been successfully used to model conductivity spectra in the field of ion dynamics in solid electrolytes. Since the mean-field model contains the relevant ingredients of the CMR-approach, a comparison of the resulting rate equations with the CMR-equations becomes possible. Generalizations beyond the mean-field case are discussed.Comment: 28 pages, 9 figures, to be published in JC

Characterization of the complex ion dynamics in lithium silicate glasses via computer simulations

We present results of molecular dynamics simulations on lithium metasilicate over a broad range of temperatures for which the silicate network is frozen in but the lithium ions can still be equilibrated. The lithium dynamics is studied via the analysis of different correlation functions. The activation energy for the lithium mobility agrees very well with experimental data. The correlation of the dynamics of adjacent ions is weak. At low temperatures the dynamics can be separated into local vibrational dynamics and hopping events between adjacent lithium sites. The derivative of the mean square displacement displays several characteristic time regimes. They can be directly mapped onto respective frequency regimes for the conductivity. In particular it is possible to identify time regimes dominated by localized dynamics and long-range dynamics, respectively. The question of time-temperature superposition is discussed for the mean square displacement and the incoherent scattering function.Comment: to be published in Phys. Chem. Chem. Phy

USING THE SIMULATED PATIENT METHODOLOGY TO ASSESS THE QUALITY OF COUNSELLING IN GERMAN COMMUNITY PHARMACIES: A SYSTEMATIC REVIEW FROM 2005 TO 2018

The simulated patient methodology (SPM) is a form of participatory observation and can be used to assess the quality of counselling. The aim is to review those papers reporting the use of the SPM in German community pharmacies (CPs) from the beginning of 2005 to the end of 2018. The reporting items in the study were derived from the PRISMA Statement. We conducted a systematic search in the GVK-Plus, Embase, Web of Science, PubMed and Google Scholar databases. Additional sources included the personal literature collection of 1 of the reviewers and the reference lists from international systematic reviews and potentially relevant papers. The quality of the papers included was evaluated using the AXIS tool. A total of 5 papers were included. The SPM that was used varied greatly in the papers. The quality of counselling was assessed in the papers as being rather poor. The quality of the papers differed for specific assessment criteria. Only an extremely small number of papers could be included, in contrast to other countries. The papers for Germany demonstrate that there is a considerable need for improvement in the quality of counselling in CPs. Also, the deficits identified here for the application of the SPM should be avoided in future papers. It must also be recommended that the SPM be reported in future papers using uniform reporting standards, which are yet to be developed, to ensure better comparability

Wertkörper: Zur Ökonomisierung des menschlichen Körpers im Zeichen von Globalisierung und Neoliberalismus

Recent advances in the fields of genomics and biotechnology have greatly expanded the discretionary autonomy of human beings over their bodies. Biology has so become a new and alluring terrain for the enlightenment project of self-realization and selffulfilment. These developments have been co-evolving with the global expansion of neoliberal capitalism. This article states that there is a common logic at work in both areas, leading not only to the emergence of a global market in biological materials but also to a re-calibration of the biology of human life into lively capital. For this reason, the new „freedom“ of constructing the body according to one’s own preferences and desires in a dialectical inversion entails new obligations and constraints. In the end, only the technologically enhanced human body is fit for the neoliberal world of social cut-backs and can avoid being consigned to a new, this time biologically defined underclass

PAFERM: The Ulisses Particles and Fields Environment Reference Mission

The paper discusses a small satellite mission that was proposed to the European Space Agency (ESA) and to the German Space Agency (DARA). The idea is to support the Ulysses mission by conducting reference measurements in the ecliptic plane, particularly during the time periods of Ulysses\u27 polar passages. The scientific objectives, the instrumentation and the impact on the Ulysses mission are discussed. The mission scenario is described, the mission constraints are given, and a preliminary spacecraft concept is shown

Probleme praxisorientierter Forschung in der Psychiatrie

Die Frage, was die Soziologie als Wissenschaft zur Praxis der Psychiatrie beitragen kann, wird auf vier Ebenen beantwortet: (1) Erklärung des Wandels der Psychiatrie im Kontext gesamtgesellschaftlicher Prozesse; (2) Auffinden gesellschaftlicher Mit-Ursachen psychischer Krankheit; (3) Aufzeigen der Wirkungen struktureller Gegebenheiten der psychiatrischen Versorgung auf das Behandlungsergebnis; (4) Erkennen der sozialen Folgen psychischer Krankheit und Aufzeigen von Möglichkeiten ihrer Beeinflussung. Diese vier Ebenen des Zusammenhangs zwischen Soziologie und Psychiatrie werden durch Verweise auf die entsprechenden Theoriebereiche der Soziologie belegt: (1) Erklärung des Wandels der Psychiatrie ist ein Problem makrosoziologischer Forschung. (2) Das Auffinden gesellschaftlicher Bedingungen für Prozesse in Teilbereichen ist typischer Gegenstand der Bindestrich-Soziologien, hier der Medizin-Soziologie. (3) Mit den Wirkungen von Organisationsstrukturen auf die Mitglieder dieser Organisationen befaßt sich speziell die Organisations-Soziologie. (4) Unter anwendungsorientierter Perspektive am wichtigsten ist der mikrosoziologischer Forschung zuzugeordnende Aussagenbereich, das Erkennen der sozialen Folgen. (RW

Геолого-структурные критерии локализации золотого и волластонитового оруденения Синюхинского рудного поля (Горный Алтай)

На основе анализа геологических данных и структурных построений предложен механизм формирования рудовмещающей толщи и структуры Синюхинского рудного поля (Горный Алтай). Выделены и охарактеризованы основные типы золоторудных тел. Предложены геолого-структурные критерии прогнозирования золотого оруденения и волластонитового сырья

Erforschung der Dynamik fester Ionenleiter mittels Computersimulationen am Beispiel von Lithiumsilikatgläsern

Im Rahmen der Dissertation wurden Molekulardynamiksimulationen ionenleitender Glaeser der Zusammensetzung x Li2O (1-x) SiO2 (x=0,5; 0,1) bei verschiedenen Temperaturen zwischen 640 K und 1240 K durchgefuehrt. Mittels geeigneter Zweizeitenkorrelationsfunktionen wurde die komplexe Ionendynamik charakterisiert. Eine wichtige Rolle kommt hierbei der Funktion w(t) = (d/dt) zu, die ueber die Theorie der linearen Antwort mit der frequenzabhaengigen Leitfaehigkeit sigma(nue) verbunden ist. Die Hin- und Rueckdynamik sowie dynamische Heterogenitaeten der Lithiumionen wurden mithilfe geeigneter Dreizeitenkorrelationsfunktionen untersucht. Die Arbeit beinhaltet zudem ein detailliertes Studium der Zusammenhaenge zwischen Netzwerk- und Lithiumdynamik. Beispielhaft hierfuer wird der "Schiebetuer"-Mechanismus vorgestellt. Schliesslich wurde die Ionendynamik unter dem Einfluss starker elektrischer Felder studiert