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Acetylenic bonds are present in more than 600 naturally occurring compounds. Plant enzymes that catalyze the formation of the Delta12 acetylenic bond in 9-octadecen-12-ynoic acid and the Delta12 epoxy group in 12,13-epoxy-9-octadecenoic acid were characterized, and two genes, similar in sequence, were cloned. When these complementary DNAs were expressed in Arabidopsis thaliana, the content of acet
Blogs, social media, and search engines have democratized information seekers and providers. However, the same affordances of the Internet have also contributed to resurgence and transformation of far-right and racist communities. Despite a growing number of studies of far-right communities, little attention has so far been paid to the mechanisms through which far-right and racist ideologies are p
Om du tar dina två händer, så ser du att de är spegelbilder. Däremot är din vänsterhand inte identisk med din högerhand. De går inte att placera på varandra, utan måste läggas handflata mot handflata för att passa ihop. Detta kallas kiralitet. Kroppen är enda ner på molekylnivå kiral, det vill säga även de minsta byggstenarna i cellerna är kirala. När ett läkemedel designas vill man att det ska pa
Platser som har bevittnat några av historiens mest fruktansvärda händelser har blivit stora turistattraktioner, besökta av miljontals människor. Detta fenomen har populariserats under termen "Dark Tourism". Men hur behandlas egentligen det mörka arvet på dessa platser? Hur väljer de olika aktörerna att bruka, eller icke-bruka, sin tragiska historia för att sälja biljetter? Denna studie u
Hur kommer det sig att det finns kalkmålningar av labyrinter i medeltida skandinaviska kyrkor? För att försöka hitta ett svar har jag undersökt kalkmålningar av labyrinter i tre medeltida kyrkor, Östra Karup (Halland), Båstad (Skåne) och Gevninge (Själland). Vilka föreställningar om labyrinter som kan ligga till grund för valet av motiv i kyrkorna har undersökts genom jämförelse med labyrinter i aHow come there are church frescoes depicting labyrinths in medieval Scandinavian churches? Which concepts and associations gave rise to the choice of motif? In order to try to find an answer I have investigated church frescoes in three medieval churches: Östra Karup (in the province of Halland), Båstad (Scania), and Gevninge (Zealand). I have also compared these with the large number of stone laby
Sikhs in Europe are neglected in the study of religions and migrant groups: previous studies have focused on the history, culture and religious practices of Sikhs in North America and the UK, but few have focused on Sikhs in continental Europe. This book fills this gap, presenting new data and analyses of Sikhs in eleven European countries; examining the broader European presence of Sikhs in new a
We present the case of a 19-year-old male athlete with protein C deficiency who developed proximal deep venous thrombosis and pulmonary embolism while abusing anabolic-androgenic steroids. Anabolic-androgenic steroids have been reported to have anticoagulatory and profibrinolytic effects in patients with protein C deficiency. Despite these antithrombotic effects, the patient developed repeated ven
Strained nanowires with varying InAs/InP core/shell thicknesses were grown using Chemical Beam Epitaxy. Microphotoluminescence spectroscopy, performed at low temperature, was then used to study the optical properties of single wires. Emission from the InAs core was observed and its dependence on the shell thickness/core diameter ratio was investigated. We found that it is possible to tune the emis
We have characterised the interchain emitting states of two substituted polyfluorenes with steady-state and time-resolved photoluminescence (PL). Site selective excitation of the interchain state shows that physical dimers are formed in the film. These dimers have low concentration in the films but exciton diffusion to the dimers is reducing the intrachain exciton lifetime. With asymmetrical subst
The first lifetime measurements have been performed for six levels of doubly ionized thorium, an important cosmochronometer in astrophysics for estimating the age of the Galaxy. The levels, belonging to the 5f(2), 5f7p, 7s7p, and 6d7p configurations of Th III, have been measured by the time-resolved laser-induced fluorescence method and compared with relativistic Hartree-Fock calculations includin
Triglycerides and phospholipids in human liver material obtained by fine-needle aspiration biopsy have been determined according to an improved version of a previously developed method. The molar ratios of these lipids have been compared with the same ratios determined on material representing whole liver. The average value of the ratios in the fine-needle specimens was 101% (83-113%) of the corre
