Sökning: "respiration rate"

Visar resultat 11 - 15 av 102 avhandlingar innehållade orden respiration rate.

  1. 11. Fiber-optic sensors for blood flow and respiration rate measurements

    Författare :Erik Stenow; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Optical fibers and fiber-optic sensors have in the last century been subjects for a great interest especially in industry and communication but also in medicine. Optical fibers are used in endoscopes and as light guides for laser surgery. LÄS MER

  3. 12. On the biology of premenstrual dysphoria and panic disorder

    Författare :Hoi-Por Ho; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; serotonin; reuptake inhibitor; estrogen; progesterone; irritability; respiration; estrus cycle; polymorphism; resident intruder model;

    Sammanfattning : Premenstrual dysphoria (PMD) afflicts 7% of all women of fertile age, and is characterized by symptoms such as irritability, sadness, and mood swings, appearing regularly before menstruation, and being of such severity that they markedly reduce quality of life. The symptoms are dependent of sex steroids, and seem to be under the influence of serotonin, since they respond to treatment with serotonin reuptake inhibitors (SRIs). LÄS MER

  4. 13. Islet insulin secretory patterns in diabetes and the role of UCP2

    Författare :Jian-Man Lin; Valdemar Grill; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cell biology; type 1 diabetes; type 2 diabetes; NOD; GK; congenes; KKAy; human; islet; glucose; insulin release; oscillation; frequency; amplitude; oxidation; respiration; UCP2; western blot; Cellbiologi; Cell biology; Cellbiologi; medicinsk cellbiologi; Medical Cell Biology;

    Sammanfattning : During development of type 1 and type 2 diabetes plasma insulin patterns are altered. Since the islet insulin release pattern has been implicated in this development, insulin secretion from single islets was studied and linked to the islet protein levels of uncoupling protein-2 (UCP2). LÄS MER

  5. 14. Cardiovascular and respiratory effects of apnea in humans

    Författare :Johan Andersson; Funktionell zoologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; lung volume; breath-hold diving; Apnea; breath-holding; face immersion; cold stimulation; diving response; diving reflex; circulation; bradycardia; vasoconstriction; arterial blood pressure; cardiac output; spleen; respiration; splenic contraction; alveol; Physiology; Fysiologi; Respiratory system; Andningsorganen; Animal physiology; Djurfysiologi;

    Sammanfattning : This thesis deals with cardiovascular and respiratory effects of apneas in humans. During apnea (breath-holding), a number of interacting cardiovascular reflexes are initiated, and together these reflexes are called the “diving response”. LÄS MER

  7. 15. Proton transfer across and along biological membranes

    Författare :Johan Berg; Peter Brzezinski; Artur Osyczka; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biological membranes; cardiolipin; cytochrome bo3; cytochrome c oxidase; energy conversion; fluorescence correlation spectroscopy FCS ; localized coupling; mitochondria; proton transfer; Rcf1; respiration; single-enzyme measurement; Biochemistry; biokemi;

    Sammanfattning : Proton-transfer reactions belong to the most prevalent reactions in the biosphere and make life on Earth possible, as they are central to energy conversion. In most known organisms, protons are translocated from one side of a membrane to the other, which generates an electrochemical gradient that drives ATP synthesis. LÄS MER