نتایج جستجو برای: 2d vs 3d
تعداد نتایج: 476059 فیلتر نتایج به سال:
Background: Bone Marrow Transplantations (BMT) are limited by low CD34+ cell counts in umbilical cord blood (UCB) and these cells need to be expanded for success in such procedures. To achieve this goal, ex vivo expansion of hematopoietic stem cells (HSCs) by enhancing their self-renewal activity on demineralized bone matrix (DBM) scaffold coated with mesenchymal progenitor cells (MPCs) and unr...
The object of this research is the investigation of carbon nanotube (CNT) distribution effect on electrical conductivity of polymer-CNT composite as dosimetry response of this system. Thus, electrical conductivity of this composite was simulated for aligned, homogenous, and agglomerated distributions in 2D, and 3D situations. The results of simulation were compared and validated by experimental...
در این تحقیق، خواص نوری و الکترونی فولرن -پلیمرهای ناهمسان به عنوان مدلی برای سلول های خورشیدی آلی در فاز گازی و حلال مورد بررسی قرار گرفت. پلیمرهای(2d( (1d)و (3d) به عنوان دهنده و c60، c70، pc60bm و pc60be به عنوان پذیرنده استفاده گردیدند. در این مطالعه سطوح انرژی، شکاف homo-lumo و انرژی بازآرایی توسط نظریه تابعیت چگالی (dft) بدست آمدند. نظریه dft وابسته به زمان (tddft) برای محاسبه خواص نوری آ...
We have recently shown that a combination of microRNAs, miR combo, can directly reprogram cardiac fibroblasts into functional cardiomyocytes in vitro and in vivo. Reprogramming of cardiac fibroblasts by miR combo in vivo is associated with improved cardiac function following myocardial infarction. However, the efficiency of direct reprogramming in vitro is relatively modest and new strategies b...
Objective: to investigate the accuracy of 2D and 3D ultrasound in measurement of Cesarean section (CS) scar thickness. Study design: A prospective observational study conducted on 75 pregnant women with previous 1 or 2 CS candidates for elective CS. Evaluation of LUS using 2D and 3D transabdominal and transvaginal ultrasound is then correlated to scar integrity assessed intraoperatively. Result...
Objectives 7T MRI has demonstrated new aspects of the pathological features of multiple sclerosis (MS) using T2*-weighted sequences. However a clinical multicontrast MRI protocol at 7 T has not yet been investigated. We evaluated the clinical value of 7T-MRI by investigating sensitivity of lesion detection compared with 3 T. Methods 38 MS patients and 8 healthy controls underwent multicontrast ...
New technology in surgery is more and more present and allows to study cognitive processes in complex and natural environment. Comparing to classical minimal access surgery, a new robotic system allows to recover a 3D view and all degrees of freedom for instruments movement. The purpose of this study was to evaluate the perceptual (2D vs 3D view) and instrumental (classical versus robotic) impa...
INTRODUCTION The goal of the study described here, was to investigate the potential of umbilical cord derived mesenchymal stem cell (UC-MSCs) into hepatocyte like cells in a sequential 2D and 3D differentiation protocols as alternative therapy. METHODS Mesenchymal stem cells (MSCs) were isolated from the umbilical cord (UC) and CD markers were analyzed by flow cytometry. For hepatic different...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید