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This is a taxonomic revision of the corticolous and lignicolous taxa of the genera Bacidia and Bacidina (Lecanoraceae, Lecanorales, lichenized Ascomycotina) in the continental United States and Canada. Twenty-seven species of Bacidia (one of which is divided into two subspecies) and twelve species of Bacidina are recognized. The morphology, secondary chemistry, ecology, and phytogeography of these

We have discovered four extremely surprising emission lines of strontiumin ejecta near eta Carinae. Hubble Space Telescope (HST) SpaceTelescope Imaging Spectrograph (STIS) observations made in 1999 show twonarrow features whose wavelengths correspond to the forbiddentransitions of Sr II, and we have found no other plausibleidentification for these lines. The identifications are confirmed by newHST

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Background: Development of complex, software intensive systems generates large amounts of information. Several researchers have developed tools implementing information retrieval (IR) approaches to suggest traceability links among artifacts. Aim: We explore the consequences of the fact that a majority of the evaluations of such tools have been focused on benchmarking of mere tool output. Method: T

The construction and demonstration of a conductometric chemical sensor based on a molecularly imprinted polymer (MIP) is reported. Benzyltriphenylphosphonium ions, chosen as a model, were used as the analyte. The MIP based sensors gave, when exposed to the analyte, a significantly higher conductivity reading than the reference sensors. Furthermore, the use of molecularly imprinted polymers as arti

Popular Abstract in Swedish Polymerer och tensider är två mycket vanliga molekylslag som vi ofta stöter på i vårt vardagliga liv. Polymerer är extremt långa kedjor sammansatta av tusentals repeterande enheter. De förekommer både som hårda material (t ex plast) och i lösning (t ex målarfärg). Det finns syntetiska polymerer, såsom nylon och polyeten, och det finns biologiska polymerer, t ex cellulosA new approach to the study of aqueous mixtures of oppositely charged polymers and surfactants has been introduced. Pure polyion-surfactant ion complex salts have been synthesized and used as the point of departure. The elimination of the simple ions reduces the number of components in the mixtures, thus greatly simplifying the system. By mixing the complex salt with either the polyelectrolyte or

This paper focuses on future scenarios of demand and supply of grain in China. Economic development has been growing at a steady pace for decades and there are no signs of a decline in the near future. Projections of population trends show that the population will continue to expand until 2050, when a levelling- off is predicted. The growth of both population and economy drives industrialisation a

Popular Abstract in Swedish Under en termin vid universitetet i Lausanne skrev jag det som kom att bli en forskarförberedande uppsats i religionsfilosofi om John Hick (f. 1922) och hans religiösa pluralism. Hicks religiösa pluralism handlar om att kristendomen inte kan eller bör betrakta sig som "den enda sanna religionen". Det blev allt klarare för mig under arbetets gång att frågor om religiös pHow to judge religions other than one's own when the means are lacking due to linguistic mobility? In the present thesis this question is mainly analysed in a Christian setting through a reading of the theologians Paul Knitter and Harold Netland. It is, however, claimed that the same question could be asked in other religious settings, also with regard to one's own tradition, and could be treated

Computerization of control room functions changes the work for the operators to a great extent. Their mental picture of the process, their possibilities to control the process for productivity and quality, the work content, the physical and the social working environment are examples of conditions which are changed one way or another. In order to be able to control the computerization process in a

Experimental studies have revealed that both downstream and upstream pointing V-shaped ribs result in better heat transfer enhancement than transverse straight ribs of the same geometry. Secondary flows induced by the angled ribs are believed to be responsible for this higher heat transfer enhancement. Further investigations are needed to understand this. In the present study, the heat and fluid f