Sökning: "Physiological studies"

Visar resultat 31 - 35 av 1139 avhandlingar innehållade orden Physiological studies.

  1. 31. Intelligent Driver Mental State Monitoring System Using Physiological Sensor Signals

    Författare :Shaibal Barua; Peter Funk; Shahina Begum; Mobyen Uddin Ahmed; Christer Ahlström; Jose Peña; Mälardalens högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Artificial Intelligent; Intelligent systems; Physiological signal; Driver monitoring; Computer Science; datavetenskap;

    Sammanfattning : Driving a vehicle involves a series of events, which are related to and evolve with the mental state (such as sleepiness, mental load, and stress) of the driv- er. These states are also identified as causal factors of critical situations that can lead to road accidents and vehicle crashes. LÄS MER

  3. 32. Gene expression and its physiological control in disease and development : Studies on the human PDGF-B gene and tumour hypoxia

    Författare :Erik Ullerås; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; Zoologisk utvecklingsbiologi; Animal Development;

    Sammanfattning : Strict control of gene expression is essential during development and in response to physiological stimuli. This thesis describes the functional characterisation of the gene regulatory mechanisms controlling the expression of the potent human growth factor Platelet Derived Growth Factor B gene, in a cell type specific context and in response to low oxygen tension. LÄS MER

  4. 33. The Human Endometrium : Studies on Angiogenesis and Endometriosis

    Författare :Christian Moberg; Matts Olovsson; Anneli Stavreus-Evers; Lalit Kumar Parameswaran Grace; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; endometrium; angiogenesis; endothelial cell; endometriosis; receptivity; implantation; oestrogen receptor; progesterone receptor; crystallin; interleukin; vasoactive intestinal peptide; peritoneal fluid; Obstetrik och gynekologi; Obstetrics and Gynaecology;

    Sammanfattning : Angiogenesis is thought to play a pivotal role in the cycling endometrium. Coordinated by oestrogen and progesterone, endometrial blood vessel development is primarily mediated by vascular endothelial growth factor-A (VEGF-A), which promotes endothelial cell (EC) proliferation and protects ECs from induced apoptosis. LÄS MER

  5. 34. Heart and lung function - in health and disease : methodological studies in clinical physiology

    Författare :Sofia Erelund; Nina Sundström; Urban Wiklund; Sandra Arvidsson; Bengt Johansson; Carl-Johan Carlhäll; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; clinical physiology; reference materials; ECG; dynamic spirometry; HRV; rheumatoid arthritis; cardiovascular disease; ischemic heart disease; Clinical Physiology; klinisk fysiologi;

    Sammanfattning : The human heart and lungs constitute an intricate and dynamic system. Various clinical physiological examinations can be used to evaluate cardio-pulmonary function and identify abnormalities. Thus, it is important to understand how normal physiology presents, to be able to identify pathological findings. LÄS MER

  7. 35. Autonomic cardiac control in long QT syndrome : clinical studies of arrhythmogenic triggers

    Författare :Anna Lundström; Annika Rydberg; Urban Wiklund; Håkan Eliasson; Jacob Tfelt-Hansen; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Long QT syndrome; pediatrics; exercise; Holter; water immersion; arrhythmia; clinical physiology; ECG; heart rate variability; heart rate response; cardiovascular disease; hjärt- och kärlforskning; kardiologi; Cardiology; pediatrik; Pediatrics;

    Sammanfattning : Background: Long QT syndrome (LQTS) is an inherited cardiac disease characterized by prolonged cardiac repolarization and an increased risk for life-threatening arrhythmias. These arrhythmias are typically triggered by adrenergic stimuli, such as physical activity and intense emotions, implicating that the sympathetic part of the autonomic nervous system (ANS) is involved in arrhythmogenesis. LÄS MER