Sökning: "l andersson"

Visar resultat 16 - 20 av 67 avhandlingar innehållade orden l andersson.

  1. 16. Formation, uptake and bioaccumulation of methylmercury in coastal seas : a baltic sea case study

    Författare :Aleksandra Skrobonja; Erik Björn; Agneta Andersson; Anne L. Soerensen; Marc Amyot; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mercury; methylmercury; bioaccumulation; mesososm; isotope tracers; methylation; demethylation; stability constant; kinetic model; coastal sea; ICPMS; LC-MS MS;

    Sammanfattning : Methylmercury (MeHg) is a potent neurotoxin which can bioaccumulate to harmful levels in aquatic food webs. Methylmercury formation is a predominantly biotic process which involves phylogenically diverse microorganisms (e.g. iron- or sulfate-reducing bacteria). LÄS MER

  3. 17. Improving alternatives assessment of plastic additives : exploring in silico tools to identify less hazardous flame retardants

    Författare :Ziye Zheng; Patrik L. Andersson; Hans Peter Arp; Gregory Peters; Gerrit Schüürmann; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Chemical alternatives assessment; plastic additives; flame retardants; hazard; emission; in silico; modeling; quantitative structure-activity relationship QSAR ; multi-criteria decision analysis MCDA ; environmental science; miljövetenskap; organisk kemi; Organic Chemistry; ekotoxikologi; Ecotoxicology; Toxicology; toxikologi;

    Sammanfattning : Alternatives assessment is applied for replacing hazardous chemicals with viable, safer substitutes. High quality experimental hazard data, however, are usually unavailable for this purpose, and obtaining in silico data is the only approach to fill in data gaps. LÄS MER

  4. 18. Transcriptional dysregulation in L-DOPA-induced dyskinesia

    Författare :Malin Andersson; Neurobiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Clinical genetics; neurofysiologi; Neurology; neuropsychology; neurophysiology; Neurologi; neuropsykologi; CREB; jun; fos; immediate early genes; prodynorphin; striatal plasticity; Parkinson s disease; dyskinesia; Klinisk genetik;

    Sammanfattning : This study explores the role of transcriptional regulation important in the development of L-DOPA-induced dyskinesia in a rat model of Parkinson’s disease. In patients with Parkinson’s disease, dyskinesia is one of the most difficult complications of the DA-replacement therapy by L-DOPA. LÄS MER

  5. 19. Dopamine and the regulation of movements - significance of nigral and striatal dopamine release in normal, hemiparkinsonian and dyskinetic rats

    Författare :Daniel Andersson; Göteborgs universitet; []
    Nyckelord :dopamine; substantia nigra; striatum; L-DOPA; dyskinesias; serotonin;

    Sammanfattning : Introduction: The nigrostriatal dopamine (DA) containing neurones are a pivotal component in the basal ganglia, a network that regulates movement. Degeneration of these neurones causes the cardinal symptoms of Parkinson’s disease (PD). LÄS MER

  7. 20. Något betydelsefullt : Leonid Dobyčins möten bortom orden i den sovjetiska samtiden

    Författare :Hans Andersson; Per-Arne Bodin; Irina Sandomirskaja; Ingunn Lunde; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; Leonid Dobychin; L. Dobyčin; Russian Literature; Soviet Literature; Soviet Culture; 1920s; 1930s; Prose; Short Stories; Modernism; Formalism; Realism; Encounter; Meeting; Detail; Rhythm; Epiphany; Everyday Life; Bryansk; Leningrad; Petrograd; Saint Petersburg; Leonid Dobyčin; L. Dobyčin; rysk litteratur; sovjetisk litteratur; sovjetisk kultur; 1920-talet; 1930-talet; prosa; noveller; modernism; formalism; realism; möte; detalj; rytm; epifani; vardagsliv; Brjansk; Leningrad; Petrograd; Sankt Petersburg; slaviska språk; Slavic Languages;

    Sammanfattning : This thesis studies the 1931 short story collection Portret [The Portrait] by the Russian author Leonid Ivanovich Dobychin (1894–1936?). My main argument is that the principal theme in Dobychin’s writings arises out of the complexities of human encounters. LÄS MER