Sökning: "methods of measurement n"

Visar resultat 1 - 5 av 137 avhandlingar innehållade orden methods of measurement n.

  1. 1. On Radio Frequency Behavioral Modeling : Measurement Techniques, Devices and Validation Aspects

    Författare :Per N. Landin; Peter Händel; Magnus Isaksson; Wendy Van Moer; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics; Elektronik;

    Sammanfattning : Effektförstärkare för radiofrekvensapplikationer utgör fortfarande ett av de största problemen i trådlösa kommunikationssystem. Detta beror på att dessa förstärkare är ickelinjära, har låg energieffektivitet och ger mycket distortioner. Bättre verktyg för att förstå och korrigera dessa beteenden är nödvändiga. LÄS MER

  3. 2. Wages, unemployment and regional differences : empirical studies of the Palestinian labor market

    Författare :Ted N. Aranki; Lars Hultkrantz; Aysit Tansel; Örebro universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Palestinian labor force; closure policy; foreign workers; wage; employment; returns to schooling; omitted variable bias; measurement error; unemployment duration; Economics; Nationalekonomi; Economics; Nationalekonomi;

    Sammanfattning : This thesis consists of four essays analyzing wages, unemployment and regional differences in the Palestinian labor market. Paper [I] investigates the effects of the Israeli closure policy on Palestinian wage earnings. Closure has a significant impact on the Palestinian labor force in the West Bank and Gaza Strip. LÄS MER

  4. 3. Measurement of outcome in lumbar spine surgery : Validity and interpretability of frequently used outcome measures in the Swespine register

    Författare :Catharina Parai; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; spine register; disc herniation; spinal stenosis; degenerative disc disorder; patient-reported outcome measure; Global Assessment; minimal important change; smallest detectable change; retest reliability; non-response to follow-up; attrition; measurement of change;

    Sammanfattning : BACKGROUND. The purpose of elective lumbar spine surgery is mainly to reduce pain and to improve physical function and quality of life. The quality and results of the interventions are monitored in the Swedish spine register, Swespine. LÄS MER

  5. 4. Measuring peer victimization and school leadership : A study of definitions, measurement methods and associations with psychosomatic health

    Författare :Lisa Hellström; Curt Hagquist; Robert Thornberg; Karlstads universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Bullying; measurement methods; pedagogical leadership; psychosomatic health; Rasch analysis; Mobbning; mätmetoder; pedagogiskt ledarskap; psykosomatisk hälsa; Rasch analys; Public Health Science; Folkhälsovetenskap;

    Sammanfattning : The aim of this thesis is to explore methods for assessing peer victimization and pedagogical leadership in school.The thesis includes four studies. Study I and II are based on web-based questionnaires among 2, 568 students in grades 7, 8 and 9. LÄS MER

  7. 5. Amino acids with relevance to health, climate and the environment : Development of mass spectrometric methods

    Författare :Javier Zurita; Leopold Ilag; Ulrika Nilsson; Margareta Törnqvist; Natalia Tretyakova; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; amino acids; LC MS; fixed-charge derivatization; BMAA; chiral separation; pheromones; arctic aerosols; serum albumin adducts; benzo[a]pyrene diol epoxides; high-resolution MS; Analytical Chemistry; analytisk kemi;

    Sammanfattning : Amino acids play vital roles in health, either in their native form or chemically modified. Some studies have linked certain non-proteinogenic amino acids to neurodegenerative diseases, such as in the case of β-methylaminoalanine (BMAA). LÄS MER