Karl Scheidemantel als Wolfram von Eschenbach, Rollenbild, in: Richard Wagner: Tannhäuser und der Sängerkrieg auf Wartburg

Signatur des Originals: S 36/F06223

Karl Heinrich Ernst Wolfram, Brustbild

Signatur des Originals: S 36/F07349

Baptist Hoffmann als Wolfram von Eschenbach, Rollenbild, Kniestück, in: Richard Wagner: Tannhäuser und der Sängerkrieg auf Wartburg

Signatur des Originals: S 36/F08837

Karl Heinrich Ernst Wolfram, Kniestück

Signatur des Originals: S 36/F10296

Karl Heinrich Ernst Wolfram, Brustbild

Signatur des Originals: S 36/F10297

Wolfram von Eschenbach; ein festspiel ...

Mode of access: Internet.

Wolfram von Eschenbach /

Lieder.--Parzival.--Titurel.--Willehalm.

Wolfram von Eschenbach,

A projected 6th part, which was to contain a critical study on Wolfram von Eschenbach, has not appeared (June, 1914)

Parcival; rittergedicht von Wolfram von Eschenbach;

Mode of access: Internet.

Tackling ‘Wicked’ problems holistically with institutionalist policymaking

One of our most pressing needs in creating a more sustainable world is the explicit development of holistic policy. This is becoming increasingly apparent as we are faced with more and more ‘wicked problems', the most difficult class of problems that we can conceptualize. Such problems consist of ‘clusters’ of problems, and include socio-political and moral-spiritual issues. This paper articulates a methodology that can be applied to the analysis and design of underlying organizational structures and processes that will consistently and effectively address wicked problems while being consistent with the advocated 'learning by doing' approach to change management and policy making. This transdisciplinary methodology—known as the institutionalist policymaking framework—has been developed from the perspective of institutional economics synthesized with perspectives from ecological economics and system dynamics. In particular it draws on the work first presented in Hayden’s 1993 paper ‘Institutionalist Policymaking’—and further developed in his 2006 book, at the heart of which lies the SFM—and the applicability of this approach in tackling complex and wicked problems.

Ultrafine particles in cities

Ultrafine particles (UFP; diameter less than 100 nm) are ubiquitous in urban air, and an acknowledged risk to human health. Globally, the major source for urban outdoor UFP concentrations is motor traffic. Ongoing trends towards urbanisation and expansion of road traffic are anticipated to further increase population exposure to UFPs. Numerous experimental studies have characterised UFPs in individual cities, but an integrated evaluation of emissions and population exposure is still lacking. Our analysis suggest that average exposure to outdoor UFPs in Asian cities is about four-times larger than those in European cities but impacts on human health are largely unknown. This article reviews some fundamental drivers of UFP emissions and dispersion, and highlights unresolved challenges, as well as recommendations to ensure sustainable urban development whilst minimising any possible adverse health impacts.

The dynamics of cellular automata on 2-manifolds is affected by topology

In this paper, we demonstrate that the distribution of Wolfram classes within a cellular automata rule space in the triangular tessellation is not consistent across different topological general. Using a statistical mechanics approach, cellular automata dynamical classes were approximated for cellular automata defined on genus-0, genus-1 and genus-2 2-manifolds. A distribution-free equality test for empirical distributions was applied to identify cases in which Wolfram classes were distributed differently across topologies. This result implies that global structure and local dynamics contribute to the long term evolution of cellular automata.