نتایج جستجو برای: mgf
تعداد نتایج: 556 فیلتر نتایج به سال:
Mutations of the receptor tyrosine kinase, Kit, or its ligand, mast growth factor (Mgf), affect three unrelated cell populations: melanocytes, germ cells, and mast cells. Kit signaling is required initially to prevent cell death in these lineages both in vitro and in vivo. Mgf appears to play a role in the survival of some hematopoietic cells in vitro by modulating the activity of p53. Signalin...
Multiple input multiple output (MIMO) approach in fiber optical communication has emerged as an effective proposition to address the ever increasing demand for information exchange. In ergodic case, channels, associated with modes or cores both fiber, is modeled by Jacobi ensemble of random matrices. A key quantity assessing performance MIMO systems mutual (MI). We focus here on case arbitrary ...
The generation and conduction of neuronal action potentials (APs) were the subjects of a cell physiology exercise for first-year medical students. In this activity, students demonstrated the all-or-none nature of AP generation, measured conduction velocity, and examined the dependence of the threshold stimulus amplitude on stimulus duration. For this purpose, they used the median giant nerve fi...
Effects of dietary polyunsaturated fatty acids (PUFA) on immune responses in poultry have been reported. However, effects on the underlying mechanisms, such as the role of cytokines, have not been documented because the necessary tools were lacking. Recently, primer sets for chicken interleukin (IL)-1beta, IL-2, interferon-gamma (IFN-gamma), myelomonocytic growth factor (MGF), and transforming ...
In this paper, we proposed a novel efficient method of analyzing the ergodic channel capacity of the cooperative amplify-and-forward (CAF) relay system. This is accomplished by employing a very tight approximate moment generating function (MGF) of end-to-end signal-to-noise ratio of 2-hop multi-relay system, which is In this paper, we proposed a novel efficient method of analyzing the ergodic c...
BACKGROUND Differing perfusion of the left and right ventricular coronary territory may influence flow-profiles of saphenous vein grafts (SVGs). We compared flow parameters, measured by transit-time flowmetry (TTFM), in left- and right-sided SVGs during coronary artery by-pass grafting (CABG). METHODS Routine TTFM measurements were obtained in 167 SVGs to the left territory (55%) and 134 SVGs...
A Ti seed film is investigated towards improving the far UV reflectance of Al/MgF 2 mirrors. Samples were initially coated with a in half area and they later full an Al protected MgF . All materials deposited by evaporation. prepared layer either at room temperature (RT) or 225°C. 3-nm thick was seen to significantly increase mirrors well-known dip centered ∼160 nm; this attributed reduction sh...
This paper outlines a unified approach to performance evaluation of a broad class of coherent, differentially coherent and noncoherent digital communication systems with dual-branch switched diversity (SWC) reception over generalized fading channels. The moment generating function (MGF) of the signal power at the output of the SWC combiner and the first-order derivative of the MGF with respect ...
This article investigates the efficacy of a novel moment generating function (MGF) based analytical framework for calculating the ergodic channel capacities of cooperative dual-hop amplify-and-forward (CAF) relay networks under three distinct source-adaptive transmission policies in Rice and Nakagamim fading environments. The proposed analytical approach relies on a new exponential-type integra...
Dear Editor, Coronary artery bypass grafting (CABG) is an established revascularisation treatment for patients with coronary artery disease (CAD). However, the graft patency rate varies significantly among different bypass graft conduits. Ten years after CABG, more than 90% of the left internal mammary artery (LIMA) grafts are patent1 but the patency rate of saphenous vein grafts (SVGs) ranges ...
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