Sökning: "formation constants"

Visar resultat 1 - 5 av 97 avhandlingar innehållade orden formation constants.

  1. 1. Formation of small molecules in space through the process of radiative association

    Författare :Daria Jones; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; astrochemistry; reaction rate constants; formation of molecules; physical chemistry;

    Sammanfattning : This thesis is dedicated to calculating the reaction rate constants for the formation of molecules through radiative association (RA) under interstellar conditions. The molecules that have been studied are CH, AlCl, Na+ − H2 and Al+ − H2. LÄS MER

  2. 2. Vanadate and Peroxovanadate Complexes of Biomedical Relevance : A speciation approach with focus on diabetes

    Författare :András Gorzsás; Lage Pettersson; Carlos F. G. C. Geraldes; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Inorganic chemistry; vanadium; hydrogen peroxide; lactate; citrate; phosphate; alanyl serine; picolinic acid; speciation; formation constants; equilibrium; solution structure; potentiometry; NMR 51V; 31P; 13C; 1H ; Oorganisk kemi; Inorganic chemistry; Oorganisk kemi; oorganisk kemi; Inorganic Chemistry;

    Sammanfattning : Diabetes mellitus is one of the most threatening epidemics of modern times with rapidly increasing incidence. Vanadium and peroxovanadium compounds have been shown to exert insulin–like actions and, in contrast to insulin, are orally applicable. However, problems with side–effects and toxicity remain. LÄS MER

  3. 3. Static and time-dependent mechanical behaviour of preserved archaeological wood : Case studies of the seventeenth century warship Vasa

    Författare :Alexey Vorobyev; Kristofer Gamstedt; Eiichi Obataya; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; archaeological wood; compression test; cubic samples; elastic constants; oak wood; barrelling formation; quasi-static loading; resonant ultrasound spectroscopy RUS ; Vasa ship; creep; 3D laser scanning; Time-dependent behaviour;

    Sammanfattning : Wooden objects have been widely used in the history of humanity and play an important role in our cultural heritage. The preservation of such objects is of great importance and can be a challenging task. This thesis investigates the static and time-dependent mechanical behaviour of archaeological oak wood from the Vasa warship. LÄS MER

  4. 4. Characterization of Aqueous Peroxomolybdates with Catalytic Applicability

    Författare :Fabian Taube; Lage Pettersson; Kip Powell; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry; Molybdate; peroxomolybdate; peroxomolybdophosphate; equilibrium; speciation; formation constants; potentiometry; EXAFS; dynamic NMR; Kemi; Chemistry; Kemi; analytisk kemi; Analytical Chemistry;

    Sammanfattning : Abstract This thesis is a summary of five papers, containing equilibrium and structure studies of aqueous molybdate and peroxomolybdate species. Some of the peroxomolybdate species have also been studied in terms of their dynamic and catalytic properties. LÄS MER

  5. 5. The Molecular Chaperone DNAJB6 - A Suppressor of Disease Related Amyloid Fibril Formation

    Författare :Cecilia Månsson; Biokemi och Strukturbiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; DNAJ; HSP40; molecular chaperones; amyloid fibrils; Alzheimer’s disease; Huntington’s Disease; crosslinking mass spectrometry; chemical kinetics; aggregation; fibril formation;

    Sammanfattning : Several neurodegenerative diseases are caused by peptides or proteins forming amyloid fibrils such as the Aβ peptide involved in Alzheimer’s disease and the huntingtin exon-1 with a prolonged polyglutamine (polyQ) stretch involved in Huntington’s disease. The ability to form amyloid fibrils is an intrinsic feature in all proteins. LÄS MER