Search for dissertations about: "PAPs"

Showing result 1 - 5 of 13 swedish dissertations containing the word PAPs.

  1. 1. Contribution of polyfluoroalkyl phosphate esters (PAPs) and other precursor compounds to perfluoroalkyl carboxylates (PFCAs) in humans and the environment

    University dissertation from Örebro : Örebro university

    Author : Ulrika Eriksson; Örebro universitet.; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; PAPs; precursors; PFCA; exposure; indoor dust; human serum; WWTP; bird eggs; Kemi; Chemistry;

    Abstract : Per-and polyfluoroalkyl substances (PFAS) are anthropogenic compounds that have been spread all over the world. The use of fluorotelomer compounds, short-chained homologues, and other PFASs with perfluorinated moieties has emerged recent years. READ MORE

  2. 2. 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

  3. 3. Cellular design of heparan sulfate The NDST enzymes and their regulation

    University dissertation from Uppsala : Universitetsbiblioteket

    Author : Pernilla Carlsson; Uppsala universitet.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; heparan sulfate; heparin; proteoglycan; NDST; PAPS; Golgi; NATURAL SCIENCES Biology Cell and molecular biology; NATURVETENSKAP Biologi Cell- och molekylärbiologi;

    Abstract : Heparan sulfate proteoglycans are proteins with long, unbranched heparan sulfate (HS) polysaccharide chains attached to them. They are found on cell surfaces and in basement membranes where they exert their action by interacting with a wide range of enzymes and signaling molecules and are thereby involved in a range of various processes both during embryonic development and in adult physiology. READ MORE

  4. 4. Functional Significance of Multiple Poly(A) Polymerases (PAPs)

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Helena Nordvarg; Uppsala universitet.; [2002]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Genetics; poly A polymerase; PAP; phosphorylation; isoforms; alternative splicing; kinetic parameters; hyperphosphorylation; regulation; Genetik; Poly A polymeras; PAP; fosforylering; isoformer; alternativ splitsning; kinetiska parametrar; reglering; MEDICINE Dermatology and venerology; clinical genetics; internal medicine Clinical genetics; MEDICIN Dermatologi och venerologi; klinisk genetik; invärtesmedicin Klinisk genetik; molekylär cellbiologi; Molecular Cellbiology;

    Abstract : 3’ end cleavage and polyadenylation are important steps in the maturation of eukaryotic mRNAs. Poly(A) polymerase (PAP), the enzyme catalysing the addition of adenosine residues, exists in multiple isoforms. In this study the functional significance of multiple poly(A) polymerases have been investigated. READ MORE

  5. 5. Cellular regulation of heparan sulfate structure and function

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Fariba Safaiyan; Uppsala universitet.; [1999]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biochemistry; Heparan sulfate; structure; biosynthesis; sulfation; Biokemi; MEDICINE Chemistry Biochemistry; MEDICIN Kemi Biokemi; Medical and Physiological Chemistry; medicinsk och fysiologisk kemi;

    Abstract : Heparan sulfate (HS) is a sulfated glycosaminoglycan found on cell surfaces and in the extracellular matrix as HS proteoglycans. HS is synthesized as a polymer of alternating glucuronic acid and N-acetylglucosamine units. READ MORE