Sökning: "pressure and volume"

Visar resultat 21 - 25 av 532 avhandlingar innehållade orden pressure and volume.

1. 21. Blood pressure, renal functional and structural changes, in normal and preeclamptic pregnancy

   Författare :Helena Strevens; Lund Obstetrik och gynekologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Obstetrics; renal biopsy; renal function; pregnancy; preeclampsia; physiology; parity; endotheliosis; cystatin C; Blood pressure; BMI; gynaecology; andrology; reproduction; sexuality; Obstetrik; gynekologi; andrologi; reproduktion; sexualitet;

   Sammanfattning : The kidneys play a pivotal role in the adaptive physiology of the pregnant woman, presenting some changes at term similar to the changes found in preeclampsia – a state of increased risk of fetal and maternal morbidity and mortality. The aim of these investigations was to explore possible similarities in blood pressure regulation, renal function and structure in normal term and preeclamptic pregnancy, to ascertain whether both conditions in fact are different degrees of an adaptive process in reaction to pregnancy. LÄS MER

3. 22. New modes of improving ventilation and oxygenation in pulmonary hypertension and acute respiratory failure in newborns and children

   Författare :Sylvia Göthberg; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Inhaled nitric oxide; high frequency oscillatory ventilation; partial liquid ventilation; respiratory inductive plethysmography; follow-up study; pulmonary hypertension; congenital heart disease; acute respiratory failure; respiratory distress syndrome; persistent pulmonary hypertension of the newborn.;

   Sammanfattning : Pulmonary hypertension leading to hypoxemia is a potentially life-threatening condition in pediatric intensive care. Hypoxemia may also result from conditions not primarily related to pulmonary hypertension. LÄS MER

4. 23. Insights into left atrial response to pressure and volume overload

   Författare :Matteo Lisi; Michael Henein; Sergio Mondillo; Lars-Åke Lars; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Keywords Mitral regurgitation; aortic stenosis; speckle tracking echocardiography; heart transplantation; left atrial strain; left ventricualr function; right ventricular function; myocardial fibrosis;

   Sammanfattning : The general purpose of this thesis is to establish the ability of Speckle Tracking Echocardiography (STE) in assessing left atrial (LA) response to pressure and volume overload respectively in aortic stenosis (AS) and mitral regurgitation (MR), and to evaluate its accuracy in predicting LA and right ventricular (RV) fibrosis in patients with end-stage heart failure (HF) undergoing heart transplantation (HTx).I demonstrated that assessment of left ventricular (LV) long axis systolic velocity and amplitude of excursion is more sensitive than simple determination of ejection fraction (EF) for revealing the beneficial impact of MR surgery on overall LV systolic performance. LÄS MER

5. 24. Aspects of Induced Hypothermia following Cardiopulmonary Resuscitation : Cerebral and Cardiovascular Effects

   Författare :Johanna Nordmark; Sten Rubertsson; Per Enblad; Jacob Johansson; Patrick Kochanek; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Anaesthetics and intensive care; Anestesiologi och intensivvård;

   Sammanfattning : Hypothermia treatment with cooling to a body temperature of 32-34°C has been shown to be an effective way of improving neurological outcome and survival in unconscious patients successfully resuscitated after cardiac arrest (CA). The method is used clinically but there are still many questions on the biological mechanisms and on how the treatment is best performed. LÄS MER

7. 25. Manufacturing and characterization of nanomaterials for low-temperature sintering and electronics thermal management applications

   Författare :Abdelhafid Zehri; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; multi-elements alloyed nanoparticles; sintering aid; PCM; phase change materials; graphene coating; heat spreader; graphene foam; nanofluids;

   Sammanfattning : Nanotechnology is expected to have a significant impact on the long-term development within and across many disciplines. While offering potential improvements in energy efficiency and reduced energy and materials consumption, nanomaterials are at the centre of the cutting-edge technologies and sustainable manufacturing processes era with near half of the products in the next period of 10 years expected to embed nanoscale solutions. LÄS MER