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Synthesis, conformational analysis, and biological evaluation of peptides from E. coli P pilus proteins

Many bacteria utilize hairlike protein appendages (pili) to attach themselves to mucosal cell surfaces in the host organism. The pilus is assembled from protein subunits synthesized inside the bacteria and transported to the outer cell wall for incorporation into the growing pilus. During the transport the pilus proteins are attached to a chaperone that protects them from aggregation and proteloty

A measure of dependence between two compositions

A composition is a vector of positive components summing to a constant. We consider the problem of describing the correlation between two compo- sitions. Using a bicompositional Dirichlet distribution, we calculate a joint correlation coefficient, based on the concept of information gain, between two compositions. Numerical values of the joint correlation coefficient are calcu- lated for compositi

On enchytraeids and naidids: Life history traits and responses to environmental stress

Popular Abstract in Swedish Enchytraeider och naidider, och deras reaktioner på miljöbetingad stress. Syftet med denna avhandling var att studera naidider och enchytraeider. Tonvikten är lagd på deras fortplantningsbeteende och hur de påverkas av miljöbetingad stress. Maskarna utsattes för stress i form av varierande kvalitet på födan, torka, och giftiga ämnen. Enchytraeider och naidider är bådaMy thesis shows that enchytraeids and naidids are sensitive to various forms of environmental stress, which in combination with the wide distribution of both families make them highly suitable for use in risk assessment and soil monitoring. Enchytraeids were subject to chemical stress under both laboratory and field conditions. In laboratory experiments enchytraeids reacted to chemical stress with

Boris Lurie and NO!art

An article about and interview with Latvian-American artist Boris Lurie (1924-2008), co-founder of the NO!art movement in the beginning of the 1960s.

How long is ‘now’? The Christian eschatological concept of time within international laws of, in, and after war: a critique of law and of our Nordic societies

The epitome of this article is the reflection upon the question of “How long is now?” This question is interpreted within the context of the Iraq war, 2003 and onwards, as the enduring now specified. Drawing on parallels from the European World War II experience and the use of “Auschwitz” as a metaphor for a specifically Christian guilt articulated in relation to the Pauline eschatological hope of

Oxidation of some Late Transition Metal Surfaces: Structural Studies from UHV to Atmospheric Pressure

Popular Abstract in Swedish Så gott som alla metaller reagerar vid normala omständigheter med syret i luften och oxideras, vilket förändrar materialets egenskaper. T.ex. rostar järn efter hand, något som alla bilägare är bittert medvetna om. Oxider behöver dock inte vara negativa, utan kan även fungera som barriärer mot fortsatt korrosion, isolerande skikt i mikroelektronikkomponenter m.m. FöljaktThe oxidation of Rh, Pd and Pt is studied under conditions ranging from ultra high vacuum to ambient pressures, with emphasis on a complete understanding of the geometry of the various oxide structures found. The investigations use a combination of various experimental methods, including high resolution core level spectroscopy, low energy electron diffraction, surface x-ray diffraction and scannin