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Showing result 1 - 5 of 43 swedish dissertations matching the above criteria.
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1. The significance of sexuality and cyst formation in the life-cycles of four marine dinoflagellate species
Abstract : Sexuality and cyst formation were studied in the marine dinoflagellate species Gymnodinium catenatum Graham, Gymnodinium nolleri Ellegaard ? Moestrup, Alexandrium catenella (Whedon et Kofoid) Balech, and Lingulodinium polyedrum (Stein) Dodge. The study included the morphological characterization of sexual stages and processes, the time and description of meiosis, the study of the length and regulation of the mandatory dormancy period of resting cysts, and the relationships among parental strains and cyst progeny at phenotypic and molecular levels. READ MORE
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2. Microfossils of eukaryotic cysts through time : A study of Precambrian-Ordovician organic-walled microbiota
Abstract : .... READ MORE
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3. Cerebrospinal Fluid Shunts in Children : Technical Considerations and Treatment of Certain Complications
Abstract : Ventriculo-peritoneal shunting is the most commonly used method for the treatment of paediatric hydrocephalus. Despite improved shunts and surgical techniques there are still complications. This retrospective study focuses on diagnoses and treatment of shunt malfunction and infections. Cost/benefit of using an adjustable shunt was assessed. READ MORE
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4. Intracranial Arachnoid Cysts. Epidemiology, Morphology and Surgical Outcome
Abstract : Background: Intracranial arachnoid cysts (AC) are malformations of the arachnoid membrane. They may cause symptoms, either by obstruction of the CSF flow or by compression of adjacent neural tissues. READ MORE
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5. Clinical evaluation of an adjustable cerebrospinal fluid shunt valve
Abstract : Introduction: Shunting systems are implanted for draining cerebrospinal fluid to treat hydrocephalus, intracranial cysts, and idiopathic intracranial hypertension. Most shunt systems include a valve which regulates drainage. A differential pressure valve opens when intracranial pressure exceeds the valve’s opening pressure. READ MORE