Avancerad sökning

Hittade 4 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Chromosome-wide gene regulatory mechanisms in Drosophila melanogaster

    Författare :Anna-Mia Johansson; Jan Larsson; Kristen M. Johansen; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chromatin structure; Drosophila; POF; disage compensation; gene expression; MSL; heterochromatin; Genetics; Genetik; genetik; Genetics;

    Sammanfattning : In Drosophila there are two different chromosome-wide targeting systems, the dosage compensation system that equalizes the transcriptional output from X-linked genes between males and females, and the regulation of the 4th chromosome mediated by the POF protein.   The best studied of these two mechanisms is the dosage compensation system. LÄS MER

  3. 2. Non-invasive techniques for assessment of peripheral blood flow at different vascular depths

    Författare :Jimmie Hagblad; Maria Lindén; Mia Folke; Marcus Larsson; Mälardalens högskola; []
    Nyckelord :elektronik; Electronics;

    Sammanfattning : Missing or reduced blood flow can lead to pressure ulcers. Monitoring blood flow in areas prone to pressure ulcer development would be a valuable tool for prevention of pressure ulcers. PPG and LDF are both established non invasive optical techniques that can be used to estimate the changes in blood flow in different tissue volumes. LÄS MER

  4. 3. Essays on Realized Volatility and Jumps

    Författare :Marcus Larsson; Nationalekonomiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Jumps; Bi-power variation; High frequency data; Realized volatility;

    Sammanfattning : Financial markets sometimes generate significant discontinuities, so called jumps, triggered by large informational shocks and extreme events. In the last decade, there is an increasing interest in financial economics towards modeling these jumps which may have significant consequences for risk management, and portfolio allocation. LÄS MER

  5. 4. Las construcciones adverbiales del tipo “delante mío” y sus condicionantes : Patrones probabilísticos, reflejos de gramaticalización y encadenamiento analógico en variedades diacrónicas y diatópicas del español

    Författare :Matti Marttinen Larsson; Laura Álvarez López; Miriam Bouzouita; José Luis Blas Arroyo; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; corpus linguistics; grammaticalization; probabilistic grammar; quantitative linguistics; usage-based linguistics; variationist linguistics; possession; analogy; romanska språk med inriktning mot spanska; Romance Languages; Specialisation in Spanish;

    Sammanfattning : The present thesis combines Labovian variationism, probabilistic grammar, and grammaticalization theory, and sets out to identify i) variable patterns underlying phenomena of morphosyntactic variation, ii) the probabilistic knowledge of grammar that speakers of Spanish possess and regulate, and iii) the conditioning factors, mechanisms and motivations that constrain morphosyntactic variation and change in Spanish diachronically and synchronically. The object of study consists in the morphosyntactic variation and change in Spanish locative adverbial constructions found at a) the level of the complement (e. LÄS MER