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Analysis of selected natural and synthetic hormones by LC-MS-MS using the US EPA method 1694

The US EPA Method 1694 (which is specific to the analysis of pharmaceuticals and personal care products) was evaluated for analysis of selected hormones: 17a- and 17b-estradiol, estriol, estrone, 17a-ethynylestradiol, diethylstilbestrol, equilin, equilenin, testosterone, progesterone and norgestrel in filtered sewage influent/effluent and seawater. The extraction of hormones from fortified water m

Epitaxial Growth and Design of Nanowires and Complex Nanostructures

Popular Abstract in Swedish Denna avhandling behandlar epitaxiell växt av nanotrådar i III-V halvledarmaterial, i vilken guldpartiklar använts som frö, samt design av tredimensionella mer avancerade förgrenade strukturer baserade på dessa trådar. Växten utfördes via så kallad ?MetallOrganic Vapour Phase Epitaxy? (MOVPE), i vilken prekursormolekylerna till halvledarmaterialens komponenter tillförs This thesis describes the epitaxial growth of III-V semiconductor nanowires using Au seed particles, and the design of more complex three-dimensional branched structures from these wires. Growth was performed by metallorganic vapour phase epitaxy, in which precursor molecules for the semiconductor material components are introduced in a low-pressure vapour. Nanowires grow epitaxially (with control

When Logics Collide: Learning under Organizational Hypocrisy

Most conceptualisations of organizational learning are generally underpinned by some notion of unitarism. Theories typically assume shared visions, values, conceptions or identities. The paper, however, considers the dilemmas faced in organizations where identities and visions are not shared, and where conceptions and ideologies are diverse and possibly in conflict. Such organizations, called here

Bomb-pulse 14C analysis combined with 13C and 15N measurements in blood serum from residents of Malmö, Sweden

The 14C content of 60 human blood serum samples from residents of Malmö (Sweden) in 1978, obtained from a biobank, has been measured to estimate the accuracy of 14C bomb-pulse dating. The difference between the date estimated by using the Calibomb software and sampling date varied between -3±0.4 and +0.2±0.5 years. The average age deviation of all samples was -1.5±0.7 years, with the delay between