Sökning: "differential detection"

Visar resultat 16 - 20 av 119 avhandlingar innehållade orden differential detection.

  1. 16. Detection of Differentially Expressed Genes in Alzheimer's Disease : Regulator of G-protein Signalling 4: A Novel Mediator of APP Processing

    Författare :Lina Emilsson; Elena Jazin; Karoly Mirnics; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Alzheimer s disease; RGS4; ITPKB; RAB3A; APP processinig; Biology; Biologi;

    Sammanfattning : Alzheimer’s disease is a neurodegenerative disease characterised by progressive memory deterioration and cognitive impairment. Pathological hallmarks are extracellular senile plaques, neurofibrillary tangles and neuron loss. Senile plaques are produced through altered processing of the membrane-bound protein APP. LÄS MER

  3. 17. New Bioanalytical Approaches, Magneto Immunoassays and SIRE Technology Based Biosensors

    Författare :Kirstin Kriz; Tillämpad biokemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biochemical technology; Biokemisk teknik; antigens; superparamagnetic nanoparticles; magnetic inductance transducer; competitive magneto immunoassay; enzymes; metabolites; differential measurements; SIRE; biosensor;

    Sammanfattning : This thesis presents two new technologies, SIRE technology based biosensors and magneto immunoassays, which can be used for bioanalytical applications. One of the main problems associated with biosensor technology is the instability of the recognition element since it is of biological origin and thus, has a limited lifetime. LÄS MER

  4. 18. Anxiety among Adolescents : Measurement, Clinical Characteristics, and Influences of Parenting and Genetics

    Författare :Susanne Olofsdotter; K.W. Nilsson; Tomas Furmark; Mats Humble; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Adolescent; anxiety; assessment; prevalence; comorbidity; parenting; oxytocin; gene–environment interaction; differential susceptibility; Child and Youth Psychiatry; Barn- och ungdomspsykiatri;

    Sammanfattning : Anxiety is the most commonly reported mental health problem among adolescents. Still, many adolescents in need of treatment are not detected and the clinical characteristics and etiological pathways of adolescent anxiety are under-researched topics. LÄS MER

  5. 19. DSP based Chromatic Dispersion Equalization and Carrier Phase Estimation in High Speed Coherent Optical Transmission Systems

    Författare :Tianhua Xu; Sergei Popov; Gunnar Jacobsen; Jie Li; Seb Savory; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; coherent detection; chromatic dispersion; carrier phase estimation; quadrature phase shift keying; SRA - ICT; SRA - Informations- och kommunikationsteknik;

    Sammanfattning : Coherent detection employing multilevel modulation formats has become one of the most promising technologies for next generation high speed transmission systems due to the high power and spectral efficiencies. Using the powerful digital signal processing (DSP), coherent optical receivers allow the significant equalization of chromatic dispersion (CD), polarization mode dispersion (PMD), phase noise (PN) and nonlinear effects in the electrical domain. LÄS MER

  7. 20. Multipactor in low pressure gas and in nonuniform rf field structures

    Författare :Richard Udiljak; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; detection methods; iris; low pressure gas; coax; nonuniform fields; Multipactor; microwave discharge; breakdown; discharge;

    Sammanfattning : Resonant electron multiplication in vacuum, multipactor, is analysed for several geometries where the RF electric field is nonuniform. In particular, it is shown that the multipactor behaviour in a coaxial line is both qualitatively and quantitatively different from that observed with the conventionally used simple parallel-plate model. LÄS MER