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I have briefly outlined different levels of scale in the discussion of centre–periphery, from a local to a more global perspective. I have tried to show that the concepts of centre and periphery cannot be applied without qualification. Different realities are concealed behind them. The common factor is nevertheless that they signal some kind of contacts, in the form of giving and taking, of power,
Vectoring is a vital component of wideband wire- line communication systems. A disorderly leaving event (DLE) disturbs the vectoring operation since the precoder, which was designed for the channel before the change, is no longer up to date. Measurements indicate that the impact of a DLE can be serious for frequencies beyond 30 MHz, which corresponds to the band used by emerging wideband communica
The St Louis aerosol was sampled during the period 16-22 August 1973 simultaneously at two locations using cascade impactors for sequential 12-hour samples. The six particle size fractions of each sampling were individually analyzed using PIXE for elements from S to Br and beyond and for heavy elements including Pb which permitted time variations of concentrations and particle size distributions t
The heat conduction in a two-dimensional square plate at nano/micro scales is investigated using numerical and semi-analytical methodologies which are energy conserving dissipative particle dynamics (DPDe) and Boltzmann transport equation (BTE) with the gray relaxation time approximation. The solution domain was considered to be a two-dimensional square plate surrounded by walls having constant te
Popular Abstract in Swedish Blodtrycket bestäms av hjärtats minutvolym och det perifera kärlmotståndet. Det perifera kärlmotståndet regleras med hjälp av substanser som verkar lokalt på kärlväggen. Dessa substanser kan frisättas från nerver vid nervaktivering. De kan också vara hormoner eller andra kärlaktiva ämnen, även sådana som tillförts exogent, till exempel anestesimedel. Endotelet, som utklRegulation of blood flow involves several endogenous substances and mechanisms, and exogenous substances may also affect the blood flow. In the present thesis, human omental blood vessels were investigated in vitro concerning (i) characteristics of 5-hydroxytryptamine (5-HT) receptors; (ii) mediators of substance P (SP)-induced relaxation; (iii) direct and indirect (via effects on sympathetic neur
Byggkostnader och boendekostnader är välkända exempel på ord som ofta ”blandas ihop”. I ” Begrepp i bygg- och fastighetssektorn” definieras och förklaras dessa och andra vanligt förekommande begrepp i bygg- och fastighetsutvecklingsprocessen. Tanken med boken är att bidra till en enklare och tydligare kommunikation i byggprocessen. Alla ord redovisas i alfabetisk ordning med förklaringar och komme
