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We study the effects of local vertex corrections to the self energy of the electron gas. We find that a vertex derived from time-dependent density-functional theory can give accurate self energies without including the explicit time dependence of the exchange-correlation potential provided, however, that a proper decay at large momentum transfer (large q) is built into the vertex function. (The lo
The paper examines the metaphysical ideas employed to embed Hellenistic astrology in an Indian religious and cultural context, relating them to questions of causality, determinism and moral freedom. These ideas are contrasted against the largely Thesophical adaptation of the same concepts, which in the 19th and 20th centuries formed the emerging modern astrology in Europe, and which led it to aban
Popular Abstract in Swedish Inom växtriket finns det ca 3000 arter som är parasitiska och dessa växer i nästan alla större ekosystem på land. Parasitiska växter kan delas in på olika sätt, helparasiter respektive halvparasiter. Denna indelning baserar sig på om de saknar klorofyll och tar all sin näring från sin värdväxt (helparasiter) eller har klorofyll och kan själva framställa kolhydrater men Parasitic plants are found in nearly every major terrestrial ecosystem and can be divided into two groups, holoparasites (lacking chlorophyll) and hemiparasites (chlorophyllous). The host-parasite connection is either situated above (stem parasites) or below ground (root parasites). In this thesis I examine the host-parasite interactions, host range and selection, and population dynamics of four r
In the chapter, “Trade Unions and Collective Agreements in a Changing World”, Anders Kjellberg explains why Swedish union density still is very high from an international perspective and why it fell dramatically in the years 2007 and 2008, particularly among Young and foreign-born employees, both containing a high share of precarious workers. Also, a number of long-term factors pressing union dens
Många idéer cirkulerar kontinuerligt inom och mellan olika fält i samhället. En del av dessa idéer blir på modet och betraktas som legitima lösningar på olika slags problem. Bland dessa kan organisationer – såväl offentliga som privata - lätt hitta färdiga paketlösningar till hur de exempelvis skall styra, leda eller budgetera sin verksamhet. Kvalitetssäkring blev en sådan idé på modet inom hälso-
This work presents an extension of a design procedure for dynamic output feedback design for systems with nonlinearities satisfying quadratic constraints. In this work we used an axial gas compressor model described by the 3-state Moore-Greitzer compressor model (MG) that has some challenges for output feedback control design (Planovsky and Nikolaev 1990), (Rubanova 2013). The more general constra
The article dicusses the etymology of three preliterary Common Nordic prepositions: till 'to', hos 'at', från 'from'. Phonological, morphological, syntactic and semantic aspects are taken into account to explain the grammaticalization processes.
