Sökning: "Veins"

Visar resultat 1 - 5 av 117 avhandlingar innehållade ordet Veins.

  1. 1. Varicose Veins : Aspects on Diagnosis and Surgical Treatment

    Författare :Lena Blomgren; David Bergqvist; Gunnar Johansson; Lars Norgren; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Surgery; Varicose veins; Venous insufficiency; Surgery; Duplex; Quality of life; Cost analysis; Kirurgi; Surgery; Kirurgi;

    Sammanfattning : Treatment for varicose veins (VV) is insufficiently evidence based and recurrence rates are high. The aim of this thesis was to study the long-term results after VV surgery, risk factors for recurrences and the effect of preoperative duplex scanning on recurrence rate, quality of life (QoL) and costs. LÄS MER

  3. 2. Conctraction-mediating receptors in human peripheral vessels with special reference to veins and lymphatics

    Författare :Trygve Sjöberg; Thoraxkirurgi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Human; arteries; veins; lymphatis; contraction; in vitro; in vivo; adrenergic receptors; noradrenaline; cirazoline; phenylephrine; clonidine; calcium antagonists; nifedipine; diltiazem; prostaglandins; thromboxane A2; U-46619; BM-13.505; indomethacin;

    Sammanfattning : By means of a myograph, postjunctional alpha-adrenoceptors were characterized in human superficial epigastric arteries and veins obtained from health subjects. The rank order of potency of subtype selective agonists could not be used for receptor characterization in these vessels, whereas antagonists gave distinct results. LÄS MER

  4. 3. Sciagraphica venarum corporis humani descriptio et quidem cavæ inferioris venarum cordis pulmonum atque venæ umbilicalis, quam venia experientiss. Ord. Medic. Upsal. præside Petro Afzelio ... pro gradu medico p. p. Ericus Steno Bogman ... Sudermannus, in audit. Gust. majori die IV Junii MDCCCIII

    Författare :Pehr von Afzelius; Eric Sten Bogman; Pehr von Afzelius; Uppsala universitet; []
    Nyckelord :Blood - circulation; Veins; Veins; Blodomloppet; Vener;

    Sammanfattning : .... LÄS MER

  5. 4. On Transient Communication Outages among Collaborating Connected and Automated Vehicles

    Författare :Shahriar Hasan; Elisabeth Uhlemann; Svetlana Girs; Javier Manuel Gozalvez Sempere; Mälardalens universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ACC; CACC; Communication Systems; Systems-of-systems; Fault tolerance; fail-operational; fail-safe; transient communication outages; platooning; connected and automated vehicles; V2V; V2X; emergency braking; collision avoidance; string stability; machine learning; artificial intelligence; ML AI; X-AI; communication delays; discrete-even simulations; SUMO; PLEXE; Veins; OMNeT ; PlatoonSAFE; Computer Science; datavetenskap;

    Sammanfattning : Recent advances in wireless technology facilitating Vehicle-to-Vehicle (V2V) communication have paved the way towards connected and more cooperative Intelligent Transportation Systems (ITSs), enhancing road safety and sustainability. Connected and Automated Vehicles (CAVs) can exchange information with one another and their surrounding infrastructure, thereby enabling cooperative automated maneuvering such as vehicle platooning. LÄS MER

  7. 5. Distensibility in Arteries, Arterioles and Veins in Humans : Adaptation to Intermittent or Prolonged Change in Regional Intravascular Pressure

    Författare :Roger Kölegård; Ola Eiken; Toste Länne; KTH; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; arterial stiffness; venous distensibility; venous flow characteristics; bedrest; pressure training; Physiology; Fysiologi;

    Sammanfattning : The present series of in vivo experiments in healthy subjects, were performed to investigate wall stiffness in peripheral vessels and how this modality adapts to iterative increments or sustained reductions in local intravascular pressures. Vascular stiffness was measured as changes in arterial and venous diameters, and in arterial flow, during graded increments in distending pressures in the vasculature of an arm or a lower leg. LÄS MER