We consider the problem of finding the spectrum of an operator taking the form of a low-rank (rank one or two) non-normal perturbation of a well-understood operator, motivated by a number of problems of applied interest which take this form. We use the fact that the system is a low-rank perturbation of a solved problem, together with a simple idea of classical differential geometry (the envelop...

In contrast to electronic document collections we find in contemporary digital libraries, systems applied in a cultural domain have to satisfy specific requirements with respect to data ingest, management, and access. Such systems should as well be able to support the collaborative work of domain experts and furthermore offer mechanisms to exploit the value-added information resulting from a co...

With an increasing focus on lone-wolf operations, al-Qaeda is becoming increasingly focussed on its internet discourses and propaganda. One of its most significant discourses is the importance of jihad and martyrdom in carrying out a terrorist attack. This study looks at Facebook pages and profiles and examines the discourses presented in relation to jihad and martyrdom. Three important concept...

We present results for the leading hadronic contribution to the muon anomalous magnetic moment due to strange quark-connected vacuum polarisation effects. Simulations were performed using RBC–UKQCD’s Nf = 2 + 1 domain wall fermion ensembles with physical light sea quark masses at two lattice spacings. We consider a large number of analysis scenarios in order to obtain solid estimates for residu...

This work investigates some discourses that emerged about the body, the 'human motor', energy and fatigue in Argentina between the late nineteenth and early twentieth centuries. Based on this inquiry an attempt is made to show how the hybrid nature of these scientifically purified formulations participated in the construction of biopolitical knowledge (organic economy) that projected the body i...

cultural world is a network of presuppositions which is intuitively present behind the consciousness of iranian thinkers like an indisputable, unanalyzable, general background. this network of constructive rules forms the modern iranian political discourses which are studied in this paper in terms of progressivist, identity-seeking, and contemporary political discourses. each of the above polit...

The interactivity of internet 2.0 and conversations arising in the virtual environment – social networks – can be considered as representative of the average opinion of citizens and tourists, and analysis thereof, therefore, constitutes a valid tool with a view to exploration. We consider the fact that the constant presence of discourses relating to the heritage of certain destinations, the isl...