Sökning: "anomalies"

Visar resultat 1 - 5 av 187 avhandlingar innehållade ordet anomalies.

  1. 1. Fetal Anomalies Surveillance and Diagnostic Accuracy of Ultrasound and Magnetic Resonance Imaging

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Hashem Amini; Uppsala universitet.; [2010]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pregnancy termination; fetal anomalies; antenatal diagnosis; ultrasound; second trimester; fetal MRI; CNS anomalies; pregnancy management; non-CNS anomalies; fetal autopsy; birth defects registry; ascertainment; spina bifida; cleft lip palate; MEDICINE Surgery Obstetrics and women s diseases; MEDICIN Kirurgi Obstetrik och kvinnosjukdomar; MEDICINE Surgery Obstetrics and women s diseases Obstetrics and gynaecology; MEDICIN Kirurgi Obstetrik och kvinnosjukdomar Obstetrik och gynekologi; Obstetrik och gynekologi; Obstetrics and Gynaecology;

    Sammanfattning : The aims were to investigate the accuracy of ultrasound in diagnosis of structural fetal anomalies with special focus on false positive findings (I), to evaluate the additional value of second trimester fetal MRI on pregnancy management (II-III) and to estimate the ascertainment in the Swedish Birth Defects Registry and incidence of spina bifida and cleft lip/palate (IV).Retrospectively, 328 fetal autopsies were identified where pregnancies were terminated due to ultrasonographically diagnosed fetal anomalies. LÄS MER

  2. 2. Solar Wind Proton Interactions with Lunar Magnetic Anomalies and Regolith

    Detta är en avhandling från Umeå : Umeå universitet

    Författare :Charles Lue; Umeå universitet.; [2015]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; the Moon; solar wind; magnetic anomalies; regolith; space physics; plasma physics; particle-surface interactions; mini-magnetospheres; energetic neutral atoms; Space Physics; rymdfysik;

    Sammanfattning : The lunar space environment is shaped by the interaction between the Moon and the solar wind. In the present thesis, we investigate two aspects of this interaction, namely the interaction between solar wind protons and lunar crustal magnetic anomalies, and the interaction between solar wind protons and lunar regolith. LÄS MER

  3. 3. Abelian Extensions, Fractional Loop Group and Quantum Fields

    Detta är en avhandling från Stockholm : KTH

    Författare :Pedram Hekmati; KTH.; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Lie group extensions; Lie conformal algebras; gerbes; twisted K-theory; renormalization; anomalies; D-brane charges; variational complex; NATURAL SCIENCES Physics Other physics Mathematical physics; NATURVETENSKAP Fysik Övrig fysik Matematisk fysik;

    Sammanfattning : This thesis deals with the theory of Lie group extensions, Lie conformal algebras and twisted K-theory, in the context of quantum physics. These structures allow for a mathematically precise description of certain aspects of interacting quantum field theories. LÄS MER

  4. 4. Ultrasound screening for fetal anomalies

    Detta är en avhandling från Department of Obstetrics and Gynecology, Lund University

    Författare :Annamari Nikkilä; Lund University.; Lunds universitet.; [2006]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; sexuality; Obstetrik; andrology; congenital malformations; ultrasound; gynekologi; andrologi; reproduktion; sexualitet; reproduction; gynaecology; Obstetrics; fetal diagnosis;

    Sammanfattning : We studied the prenatal detection rate of various malformations during a study period of 16 years in a population in southern Sweden consisting of 141 240 deliveries. The overall detection rate was 28.4% and the false positive diagnoses were very few. LÄS MER

  5. 5. Evolutionary ecology of ultraviolet-B radiation stress tolerance in amphibians

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Maarit Pahkala; Uppsala universitet.; [2001]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; amphibians; anomalies; embryonic development; geographic variation; growth; Rana arvalis; Rana temporaria; survival; UV-B radiation; Utvecklingsbiologi; NATURAL SCIENCES Biology Organism biology Developmental biology; NATURVETENSKAP Biologi Organismbiologi Utvecklingsbiologi; populationsbiologi; Population Biology;

    Sammanfattning : During the last decades many amphibian species and populations have experienced declines and extinctions in different parts of the world. Anthropogenic activities are believed to account for these declines, and one of the hypothesized causes has been the increased level of ultraviolet-B (UV-B) radiation due to depletion of the stratospheric ozone layer. LÄS MER