Search for dissertations about: "Precursor"

Showing result 1 - 5 of 390 swedish dissertations containing the word Precursor.

  1. 1. EMBRYONIC GLIA AND FOREBRAIN NEUROGENESIS; in vitro generation and differentiation of telencephalic neurons

    University dissertation from Anita Frank, BMC A11, 221 84 Lund, SWEDEN

    Author : Charlotta Skogh; Lunds universitet.; Lund University.; [2003]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; GFAP; beta tubulin III; RC2; Neurology; neuropsychology; neurofysiologi; DARPP-32; retinoic acid; serum; EGF; co-culture; cell culture; striatum; LGE; progenitor; precursor; radial glia; region specific; development; CNS; mouse; human; neurophysiology; Neurologi; neuropsykologi;

    Abstract : The current thesis is aimed to increase our understanding of the generation and differentiation of telencephalic neurons, with emphasis on the role of glial cells in these processes. Using in vitro methods we have studied the role of glial cells in neurogenesis, inheritance of genetic regional specification, and influence on differentiation of neurons. READ MORE

  2. 2. Polybrominated dibenzo-p-dioxins Natural formation mechanisms and biota retention, maternal transfer, and effects

    University dissertation from Umeå : Umeå Universitet

    Author : Kristina Arnoldsson; Umeå universitet.; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; polybrominated dibenzo-p-dioxins; PBDDs; Baltic Sea; uptake; retention; maternal transfer; metabolism; bioavailability; natural formation; precursor; bromoperoxidase; bromophenol; photochemical transformation; oxidative coupling; hydroxylated polybrominated diphenyl ethers; MEDICINE Chemistry; MEDICIN Kemi; Analytical Chemistry; analytisk kemi;

    Abstract : Polybrominated dibenzo-p-dioxins (PBDD) and dibenzofurans (PBDF) are a group of compounds of emerging interest as potential environmental stressors. Their structures as well as toxic responses are similar to the highly characterized toxicants polychlorinated dibenzo-p-dioxins. READ MORE

  3. 3. Transient electromagnetic pulse propagation in temporally dispersive materials

    University dissertation from Department of Electromagnetic Theory, Lund Institute of Technology

    Author : Igor Egorov; Lunds universitet.; Lund University.; [1998]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; direct scattering; Green functions; time domain; wave propagation; bi-gyrotropic; chiral; bi-isotropic; Forerunner; precursor; Green dyadics; Electronics and Electrical technology; Elektronik och elektroteknik;

    Abstract : This thesis treats the problem of transient electromagnetic pulse propagation in temporally dispersive media. The analysis is performed using time-domain techniques. In particular, the dispersive wave splitting which decouples the Maxwell equations both in vacuum and inside the medium is utilized. READ MORE

  4. 4. Synthesis and structural characterization of complexes between [pi]-acid ligands and copper (I) chloride

    University dissertation from Chalmers University of Technology

    Author : Mikael Håkansson; Chalmers tekniska högskola.; Chalmers University of Technology.; [1990]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; olefin complex; conjugated diene; cyclopentadiene; carbon monoxide; synthesis; crystal structure; infrared; precursor;

    Abstract : .... READ MORE

  5. 5. Improved analytical methods for perfluoroalkyl acids (PFAAs) and their precursors – a focus on human dietary exposure

    University dissertation from Stockholm : Department of Applied Environmental Science (ITM), Stockholm University

    Author : Shahid Ullah; Stockholms universitet.; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Environmental Science; PFASs; PFAAs; PFOA; PFOS; Precursor; FOSA; PAPs; Method development; LC-MS; SPE; Dietary sample; Drinking water; Human exposure; Applied Environmental Science; tillämpad miljövetenskap;

    Abstract : Per- and polyfluoroalkyl substances are a large group of global environmental contaminants. They can be divided into two sub-groups, 1) perfluoroalkyl acids (PFAAs) and 2) so called precursors, i.e. compounds that can potentially be transformed to form PFAAs. READ MORE