Sökning: "Progress curves"

Visar resultat 1 - 5 av 15 avhandlingar innehållade orden Progress curves.

1. 1. Sensitivity, Noise and Detection of Enzyme Inhibition in Progress Curves

   Författare :Omar Gutierrez Arenas; Helena Danielson; Athel Cornish-Bowden; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; Progress curves; limit of detection; Z -factor; primary screening; enzyme inhibition; error structure; sensitivity analysis; High-throughput screning; Biokemi;

   Sammanfattning : Starting with the development of an enzymatic assay, where an enzyme in solution hydrolysed a solid-phase bound peptide, a model for the kinetics of enzyme action was introduced. This model allowed the estimation of kinetic parameters and enzyme activity for a system that has the peculiarity of not being saturable with the substrate, but with the enzyme. LÄS MER

3. 2. Lubricants influence on wear in sharp rail curves

   Författare :Patric Waara; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machine Elements; Maskinelement;

   Sammanfattning : Rail lubrication in curves was widely introduced in Sweden during the 1970’s due to the high wear rate of gauge faces in sharp curves. The first tests performed in Sweden showed that lubrication decreased wear rates by roughly 10 times. Based upon these results, the Swedish track system was equipped with wayside lubricators called Clicomatic. LÄS MER

4. 3. Income, Energy Taxation, and the Environment : An Econometric analysis

   Författare :Tarek Ghalwash; Runar Brännlund; Pere Riera; Umeå universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Household consumption; energy demand; emissions; rebound effect; energy taxation; tax elasticities Environmental services; income elasticities; Engel Curves; income distribution.; Economics; Nationalekonomi;

   Sammanfattning : This thesis consists of four papers: two of them deal with the relationship between consumption, energy taxation, and emissions on macro level, and two of them focuses on the effects of changes in consumption and income on the environmental quality on a micro level. The main objective of paper [I] is to examine how exogenous technological progress, in terms of an increase in energy efficiency, affects consumption choice by Swedish households and thereby emissions of carbon dioxide (CO2), sulphur dioxide (SO2) and nitrogen oxide (NOx). LÄS MER

5. 4. Reaction Mechanisms of Metalloenzymes and Synthetic Model Complexes Activating Dioxygen : A Computational study

   Författare :Valentin Georgiev; Per E.M. Siegbahn; Sam de Visser; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; catalysis; density functional theory; extradiol; intradiol; dioxygenases; oxygen; biomimetic complexes; heme; spin transition; adipic acid; Chemical physics; Kemisk fysik; kvantkemi; Quantum Chemistry;

   Sammanfattning : Quantum chemistry has nowadays become a powerful and efficient tool that can be successfully used for studies of biosystems. It is therefore possibleto model the enzyme active-site and the reactions undergoing into it, as well as obtaining quite accurate energetic profiles. LÄS MER

7. 5. Insights into population structure and epidemiology of Phytophthora infestans from Nicaragua

   Författare :Jorge Ulises Blandón-Díaz; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : Late blight caused by Phytophthora infestans (Mont) de Bary is a constraint to both potato and tomato crops in the northern highlands of Nicaragua. This thesis describes studies on population structure and epidemiology of P. infestans from Nicaragua. The genotypic and phenotypic variation in isolates of P. LÄS MER