The xylose-fermenting capacity of recombinant Saccharomyces cerevisiae carrying XYL1 and XYL2 from Pichia stipitis, which encode xylose reductase (XR) and xylitol dehydrogenase (XDH), respectively, is poor due to high xylitol formation. Whereas, P. stipitis exhibits high ethanol yield on xylose, the tolerance towards inhibitors in the lignocellulosic hydrolysate is low. A recombinant strain posses

Geometric hashing is a fast, but noise sensitive, method for doing matching of points in images with points in a model database. Here the noise is taken into account, and improvements to the method is proposed

In TSP with neighborhoods (TSPN) we are given a collec-tion X of k polygonal regions, called neighborhoods, with totally n ver-tices, and we seek the shortest tour that visits each neighborhood. TheEuclidean TSP is a special case of the TSPN problem, so TSPN is alsoNP-hard. In this paper we present a simple and fast algorithm that, givena start point, computes a TSPN tour of length O(log k) times

This paper seeks to discuss the nature of complex relationships among participants in organizational life, including ways in which paradox and ambiguity in their interactions impact upon organizational performance. Any relationship emerges and subsists through interaction between people. The nature of a relationship is the result of double description (Bateson, 2002). Each of the parties involved

Abstract in Italian Translation into Italian of "Christ Jesus and the Jewish People Today: New Explorations of Theological Interrelationships"

Popular Abstract in Swedish Trastsångarnas MHC gener i klarspråk Inuti kroppen ser vi väldigt lika ut allihop; men om mina njurar skulle sluta att fungera är det inte alls säkert att just du kan donera en njure till mig. Detta beror på att våra transplantations-gener eller s.k. MHC- (Major Histocompatibility Complex) gener är olika, och vid en transplantation måste många av donatorns och mottagarIn vertebrates the Major Histocompatibility Complex (MHC) plays a central role in the specific immune defence against various pathogens. Compared with other coding genes the MHC genes exhibit an extremely high level of polymorphism that is maintained by balancing selection. The importance in the immune defence and the polymorphism make these genes interesting to study from an ecological and evolut

Popular Abstract in Swedish Övergödning av hav, sjöar och vattendrag beror på att näringsämnen som bl.a. kväve och fosfor tillförs i sådana mängder att ekosystemen kommer i obalans. Tillförseln gynnar en riklig tillväxt av cyanobakterier, tång och sjögräs som sedan vid sin död bryts ner av mikroorganismer som konsumerar syret som finns i vattnet. När syrefria förhållanden har uppstått gynnas andraSome of the main factors affecting the biological removal of nutrients in wastewater treatment plants have been investigated. The influence of low concentrations of dissolved oxygen and the redox potential on the denitrification, activity of activated sludge was studied in batchwise experiments. Oxygen was found to have a negative effect on denitrification even when present at concentrations lower