نتایج جستجو برای: donor density
تعداد نتایج: 475000 فیلتر نتایج به سال:
This paper mainly discusses the structure-property relationship of two donor-acceptor-donor (D–?–A–?–D) type dopant-free hole transporting materials (HTMs) (TPA-TPy and TPA-Py-PTZ) comprising primarily 2,4,6-trisubstituted pyridine as acceptor core 4,4?-dimethoxytriphenylamine peripheral donor groups their use in p-i-n perovskite solar cells (PVSCs). Compared to inferior TPA-Py-PTZ, TPA-TPy has...
Purpose To determine the factors that influence the endothelial cell density (ECD) of donor grafts after Descemet stripping automated endothelial keratoplasty (DSAEK). Methods This retrospective, interventional case series comprised 77 eyes of 64 patients who underwent DSAEK. Confocal microscopy was performed at the final follow-up examination to evaluate the endothelial cell count, cell morp...
BACKGROUND Allograft tissue remains a valuable alternative for anterior cruciate ligament reconstruction. No study to date has correlated the effect of donor age to bone mineral density (BMD) in a large series of irradiated bone-patellar tendon-bone (BPTB) allograft tissue. Hypothesis/ PURPOSE The authors attempted to correlate donor age with BMD in a large group of BPTB allograft specimens t...
PURPOSE The aim of this study was to describe the aims, methods, donor and recipient cohort characteristics, and potential impact of the Cornea Preservation Time Study (CPTS). METHODS The CPTS is a randomized clinical trial conducted at 40 clinical sites (70 surgeons) designed to assess the effect of donor cornea preservation time (PT) on graft survival 3 years after Descemet stripping automa...
This article investigates the relationship between grandparents and lesbian daughters in the context of childbirth, looking specifically at the role that pregnancy plays in shaping kinship affinities. Gender, sex, and heterosexuality are fundamental to Euro-American kinship discourse and practice; lesbian couples' parenthood through donor conception represents a significant departure from preva...
liver oxidative stress after renal ischemia-reperfusion injury is leukocyte dependent in inbred mice
objective(s) there are some reports in recent years indicating that renal ischemia - reperfusion (ir) induces deleterious changes in remote organs such as liver. the aim of this study was to investigate whether leukocytes have a role on the induction of oxidative stress in liver after renal ir. materials and methods inbred mice in ir donor group were subjected to renal ir injury. in sham donor ...
Framework for community functioning: synthesis of stress gradient and resource partitioning concepts
To understand how communities function and generate abundance, I develop a framework integrating elements from the stress gradient and resource partitioning concepts. The framework suggests that guild abundance depends on environmental and spatial factors but also on inter-guild interactions (competitor or facilitator richness), which can alter the fundamental niche of constituent species in ne...
Donor-acceptor co-doped SiC is a promising light converter for novel monolithic all-semiconductor white LEDs due to its broad-band donor-acceptor pair luminescence and potentially high internal quantum efficiency. Besides sufficiently high doping concentrations in an appropriate ratio yielding short radiative lifetimes, long nonradiative lifetimes are crucial for efficient light conversion. The...
Currently little is known about the mechanisms regulating the homing and the early engraftment of prenatally transplanted hematopoietic cells due to the lack of a relevant functional assay. In this study, we have defined a reproducible kinetic profile of the homing and the early engraftment events in a murine model of prenatal stem cell transplantation. Light density mononuclear cells (LDMCs) f...
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