Sökning: "volumes of activation"

Visar resultat 16 - 20 av 22 avhandlingar innehållade orden volumes of activation.

  1. 16. Cerebellar development and very preterm birth interactions with neonatal events

    Författare :Kristbjorg Sveinsdottir; Lund Pediatrik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : AbstractThe cerebellum is an important part of the brain and in very preterm infants the cerebellum is smaller at term equivalent age compared to that of infants born at term.Hypothesis and aims: The general hypothesis is that preterm birth per se causes cerebellar underdevelopment and that certain events following preterm birth, either complications or treatments, can aggravate the underdevelopment. LÄS MER

  3. 17. Very preterm birth and fetal growth restriction in adolescence - Cardiovascular and renal aspects

    Författare :Jonas Liefke; Lund Klinisk fysiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Preterm and low birth weight; Fetal growth restriction; Magnetic resonance imaging MRI ; Cardiac function; Preterm birth; Adolescence; Kidney function; Kidney anatomy histology; Cardiovascular biomarkers; Arterial stiffness; Ambulatory blood pressure measurement; Biochemical makers;

    Sammanfattning : This thesis applied magnetic resonance imaging (MRI) to investigate to what extent very preterm birth due to early onset fetal growth restriction (FGR) impacts the cardiovascular system and kidneys in adolescence. The thesis further investigated whether FGR exacerbates the organ-specific effects of very preterm birth. LÄS MER

  4. 18. Mesostructured particulate silica materials with tunable pore size : Synthesis, characterization and applications

    Författare :Malin Helena Sörensen; Per Claesson; Viveka Alfredsson; KTH; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Mesoporous materials; aersol-based process; emulsion-based process; biocatalysis; sustained release; 3D hexagonal; 2D hexagonal; powder; spherical particles; liquid crystalline phases; AFM-porosimetry; Pluronic; Chemistry; Kemi;

    Sammanfattning : Colloidal assemblies of surfactants and polymers in aqueous solutions have been used by human mankind for hundreds of years and they are of great importance in many of our technological processes, such as fabrication of soap and papermaking. Less than two decades ago the idea of using colloidal assemblies as templates of inorganic materials was borne. LÄS MER

  5. 19. Respiratory control in the newborn : central chemosensitivity, neuropeptides and nicotinic effects

    Författare :Ronny Wickström; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Breathing is regulated by a complex network of neurons located mainly in the brainstem. For the newborn, it is critical for survival that a continuous respiration is established after birth. However, the regulation of respiration also undergoes maturation in the postnatal period. LÄS MER

  7. 20. Studies on ventilatory function in chronic neuromuscular disorders

    Författare :Jan Weinberg; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :ventilatory dysfunction; neuromuscular disorders; diaphragm; electromyogram; power spectrum; blood gas; ventilatory mechanics; sleep; polysomnography;

    Sammanfattning : Ventilatory dysfunction is common in neuromuscular disorders (NMD). The present studies aimed at evaluating and developing methods for diagnosis of ventilatory function in NMD. Methods included were diaphragmatic EMG (EMGdi), blood gas monitoring assessed at rest and during exercise and nocturnal respiratory and sleep parameters. LÄS MER