نتایج جستجو برای: artificial vessel
تعداد نتایج: 371267 فیلتر نتایج به سال:
INTRODUCTION Large osseous defect remains a serious clinical problem due to the lack of sufficient blood supply and it has been proposed that this situation can be relieved by accelerating the formation of new vessels in the process of bone defect repair. The aim of this study was to develop a new type of artificial bone by transferring the VEGF gene into marrow stromal cells (MSCs) and seeding...
results in all groups ischemic changes were apparently observed in hippocampus ca1 neurons. in two-vessel occlusion model, after 3 and 24 hours of reperfusions, ischemic cells accounted for 14.9% and 23.2%, respectively. in four-vessel occlusion model, after 3 and 24 hours of reperfusions, ischemic cells accounted for 7.6% and 44.9% (p < 0.0001), respectively. background an appropriate animal m...
Actuation delay poses a challenge for robotic arms and cranes. This is especially the case in dynamic environments where robot arm or objects it trying to manipulate are moved by exogenous forces. In this paper, we consider task of using compensate relative motion between two vessels at sea. We construct hybrid controller that combines an Inverse Kinematic (IK) solver with Reinforcement Learnin...
Fluorescent nanoparticles (FNPs) which were injected into a tumor tissue flowed out through the blood and lymph vessels. The FNPs in blood vessels remained only in the order for few minutes while those in lymph vessels remained for a long time disappearing completely in 25 hours. We found a primo vessel inside a lymph vessel near a blood vessel, and FNPs remained in the primo vessel for longer ...
background: role of atherosclerosis in the pathogenesis of ischemic and hemorrhagic infarctions is still matter of debate. intima-media thickness (imt) of the common carotid artery (cca) and internal carotid artery (ica) are markers of atherosclerosis. the aim of this study was to compare cca imt and ica imt of patients with ischemic and hemorrhagic infarction. methods: two equal group...
behcet´s disease (bd) is accepted as a systemic vasculitis. vasculitis is observed predominantly on the venous system. vessel involvement is frequently seen in males. this study was planned retrospectively evaluate demographic features, clinical features, vessel involvements in bd. furthermore, we aimed to prospectively compare consecutively chosen patients with and without thrombosis and heal...
a double left anterior descending (lad) coronary artery emerging from the left and right coronary arteries is classified among rare coronary anomalies. we herein report a 73-year-old man presenting with acute coronary syndrome (posterolateral myocardial infarction). he was admitted with typical chest pain, and due to his progressive ischemic changes on electrocardiography (ecg) and elevated car...
in this paper, an experimental and numerical investigation into the effect of the hoop welding in metallic pressure vessel is presented. in the experimental manufacturing, hoop welding was used to attach the cylindrical body of the vessel, and the effect of welding into stress and strain distribution is carried out. experimental strains are obtained by using the strain gauges attached to predet...
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