Sökning: "First"

Visar resultat 6 - 10 av 24029 avhandlingar innehållade ordet First.

  1. 6. Epitaxy of group III-nitride materials using different nucleation schemes

    Författare :Rosalia Delgado Carrascon; Vanya Darakchieva; Daniela Gogova; Alice Hospodková; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Group III-nitride materials, gallium nitride (GaN), aluminum nitride (AlN) and indium nitride (InN) have direct band gaps with band gap energies ranging from the infrared (InN) to the ultraviolet (GaN) and to the deep ultraviolet (AlN) wave-lengths, covering the entire spectral range from 0.7 eV to 6.2 eV upon alloying. LÄS MER

  3. 7. At first blush : the impact of shyness on early adolescents' social worlds

    Författare :Nejra Besic; Margaret Kerr; Håkan Stattin; Ray Crozier; Örebro universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; shyness; adolescence; social relationships; friends; peers; parents; social identity; socialization; problem behaviors; Psychology; Psykologi; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Social sciences; Socialvetenskap; Psykologi; Psychology;

    Sammanfattning : Shyness as a behavioral characteristic has been in focus of research in psychology for a number of decades. Adolescent shyness has, however, been relatively overlooked compared with studies conducted on children and adults. LÄS MER

  4. 8. The first injustice : Socio-economic inequalities in birth outcome

    Författare :Marit Gisselmann; Denny Vågerö; Magnus Nermo; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Sweden; socio-economic inequalities; birth outcome; infant mortality; low birthweight paradox; working conditions; Sociology; Sociologi; Sociology; sociologi;

    Sammanfattning : Adverse birth outcomes like preterm birth and infant mortality are unevenly distributed across socio-economic groups. Risks are usually lowest in groups with high socio-economic status and increase with decreasing status. LÄS MER

  5. 9. Describing interstitials in close-packed lattices : first-principles study

    Författare :Noura Al-Zoubi; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Condensed matter physics; Kondenserade materiens fysik;

    Sammanfattning : .... LÄS MER

  7. 10. Polar molecules in crystalline and surface environments : From first principles

    Författare :Maria Alfredsson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry; Kemi; Chemistry; Kemi; Inorganic Chemistry; oorganisk kemi;

    Sammanfattning : With the knowledge of the composition and structure of a chemical system, be it a molecule, a two-dimensional surface or a three-dimensional crystal, it is now possible to predict the specific properties of the compound under consideration via computational studies. Molecular and periodic Hartree-Fock and DFT calculations have been used as a tool to study polar molecules and how their properties respond to the molecular environment in a crystal or on an ionic surface. LÄS MER