Sökning: "T Zhang"

Visar resultat 21 - 25 av 34 avhandlingar innehållade orden T Zhang.

  1. 21. Human herpesvirus 6 infection after allogeneic stem cell transplantation

    Författare :Fu-Zhang Wang; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Human herpesvirus 6 (HHV-6) is a lymphotropic virus mainly infecting T lymphocytes but also other types of cells. Seroepidemiological studies have shown that more than 90% of individuals older than 2 years are seropositive for HHV-6. LÄS MER

  3. 22. The role of virus neutralization in primate lentivirus pathogenesis

    Författare :Yi jun Zhang; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The antiviral neutralizing activity of sera from primate lentivirus-infected human and monkey hosts was studied. In addition, factors affecting the neutralization reaction were investigated. In simian immunodeficiency virus (SIVsm)-infected macaque monkeys, SIVsm variants able to escape neutralization emerged regularly. LÄS MER

  4. 23. Development of novel molecular and microfluidics tools for identification and characterization of latent HIV-1 reservoir

    Författare :Wang Zhang; Aman Russom; Ujjwal Neogi; Afshin Ahmadian; Utkan Demirci; KTH; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; HIV-1; Latent HIV-1 reservoir; HIV-1 characterization; Microfludics; Molecular detection; Medical Technology; Medicinsk teknologi;

    Sammanfattning : The existence of latent HIV-1 reservoir (LR) in all HIV-1 infected patients serves as a major obstacle to completely cure HIV-1 infection. However, up to now there is still no available assay that provides an accurate measurement of the reservoir size. LÄS MER

  5. 24. Silicon Nanopore Arrays : Fabrication and Applications for DNA Sensing

    Författare :Miao Zhang; Jan Linnros; Meni Wanunu; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nanopore; array; electrochemical etching; DNA; optics; thermophoresis;

    Sammanfattning : Nanopore biomolecule sensing and sequencing has emerged as a simple but powerful tool for single molecule studies over the past two decades. By elec- trophoretically driving single molecules through a nanometer-sized pore, often sitting in an insulating membrane that separates two buffer solutions, ionic current blockades can be detected to reveal rich information of the molecules, such as DNA length, protein size and conformation, even nucleic acid se- quence. LÄS MER

  7. 25. Investigating and Enhancing Performance of Multiple Antenna Systems in Compact MIMO/Diversity Terminals

    Författare :Shuai Zhang; Sailing He; Raj Mittra; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Multiple antennas; planar inverted-F antenna; mutual coupling; slot antenna; compact antenna; mobile antenna; Q factors; antenna array; ultra-wideband UWB antenna; pattern diversity; polarization diversity; user effects; adaptive arrays; chassis mode;

    Sammanfattning : Today, owners of small communicating device are interested in transmitting or receiving various multimedia data. By increasing the number of antennas at the transmitter and/or the receiver side of the wireless link, the diversity/Multiple-Input Multiple-Output (MIMO) techniques can increase wireless channel capacity without the need for additional power or spectrum in rich scattering environments. LÄS MER