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Det senaste decennierna har byggbranschen uppvisat en stor skara skadefall och problem i hus som på ett eller annat sätt är fuktrelaterade. Många skade- och problemtyper har funnits under hela perioden och återkommer mer eller mindre ständigt. Andra skadetyper har uppkommit "plötsligt" och blivit en ny typ av skador. Så småningom har man lärt sig hur man skall undvika och åtgärda dessa, men snart
Molecular hydrogen exists in two spin-rotation coupled states: parahydrogen and orthohydrogen. Due to the variation of energy with rotational level, the occupation of ortho- and parahydrogen states is temperature dependent, with parahydrogen being the dominant species at low temperatures. The equilibrium at 20 K (99.8% parahydrogen) can be reached by natural conversion only after a lengthy process
This paper highlights three important problems characterizing much of current leadership studies: the hegemonic ambiguity problem, the idyllic problem, and the methodological problem(s). I suggest three broad routes forward – taking the concept, the ideological aspects, and the epistemic challenges more seriously - which in various ways address, and in best case mitigate, the three problems. Recog
Ten new species of Peltigera are reported from Greenland. Peltigera kristinssonii and P. membranacea are reported as new to South East Greenland, P. neckeri as new to North West Greenland, and P. occidentalis and P. ponojensis as new to Central West and South East Greenland.
Three species, Orientophila fauriei, O. jungakimae and O. yokjidoensis, from South Korea are described as new, illustrated and compared with closely related taxa.
