Sökning: "false positive results"

Visar resultat 6 - 10 av 106 avhandlingar innehållade orden false positive results.

  1. 6. Ovarian cancer : Treatment results, prognostic factors, and tumor marker surveillance

    Författare :Thomas Högberg; Claes Tropé; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : The total population-based material of 426 ovarian malignancies in the Southeast Health Care Region of Sweden during 1984-1987 was surveyed. It seems that with a program of cytoreductive surgery followed by a cisplatinum chemotherapy combination in the metastasizing cases the overall survival figures have improved. LÄS MER

  3. 7. Some new results concerning general weighted regular Sturm-Liouville problems

    Författare :Mervis Kikonko; Lars-Erik Persson; Peter Wall; Angelo B. Mingarelli; Alexey Karapetyants; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Partial differential equations; Sturm-Liouville problem; Right-definite; left-definite; non-definite; indefinite; Dirichlet problem; spectrum; eigenvalues; non-real eigenvalues; Richardson number; Richardson index; turning point; Mathematics; Matematik;

    Sammanfattning : In this PhD thesis we study some weighted regular Sturm-Liouville problems in which the weight function takes on both positive and negative signs in an appropriate interval [a,b]. With such  problems there is the possible existence of non-real eigenvalues, unlike in the definite case (i.e. LÄS MER

  4. 8. Tuberculosis case finding in HIV-positive adults receiving care at health centres in Ethiopia

    Författare :Taye Balcha; Enheten för infektionssjukdomar; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; HIV; Case detection; Treatment outcome; Health centres; Ethiopia.;

    Sammanfattning : Rapid, accurate diagnosis and management of TB in HIV-positive individuals is critical for the success of antiretroviral treatment programmes in primary health care in Sub-Saharan Africa. These studies aim to develop and evaluate methods for TB case finding in adults receiving care at Ethiopian health centres. LÄS MER

  5. 9. Ultrasound measurement of cervical length in the second trimester of pregnancy for prediction of preterm delivery

    Författare :Pihla Kuusela; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; preterm delivery; transvaginal ultrasound; cervical length measurement; second trimester; prospective study; observational study; mass screening; reproducibility of results; inter-observer variation; intra-observer variation; data accuracy; quality control;

    Sammanfattning : Abstract Background: Short cervical length is a risk factor for preterm delivery (PTD) and screening of cervical length using transvaginal ultrasound in the second trimester is a proposed method to find women at risk Aims: To examine the potential value of routine measurement of cervical length in a Swedish population of women with singleton pregnancies in the prediction of PTD. To estimate inter- and intra-observer agreement and reliability of cervical length measurements. LÄS MER

  7. 10. Prevention of transfusion transmitted infections : donor screening and characteristics of recipient populations

    Författare :Elsa Tynell; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :HTLV-I and II; blood donor screening; transfusion recipients; case-mix; survival rates; false-reactive test results; cost effectiveness;

    Sammanfattning : Minimising the risk for transfusion transmitted infections (TTIs) relies on selection of safe donors, including microbiological screening, and avoidance of unnecessary transfusions. Blood donor screening for HTLV-I and II, was introduced in Sweden in 1994. LÄS MER