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In this paper, we analyze the performance of a CDMA reverse link with an up/down power control algorithm in the presence of fading. We derive a stochastic nonlinear feedback control system model for the power controlled reverse link and study the power control performance based on the nonlinear model using the technique of statistical linearization. We(More)
In this letter, we propose a low complexity linear precoding scheme for downlink multiuser MIMO precoding systems where there is no limit on the number of multiple antennas employed at both the base station and the users. In the proposed algorithm, we can achieve the precoder in two steps. In the first step, we balance the multiuser interference (MUI) and(More)
Gama-aminobutyric acid (GABA) is a natural functional amino acid. In the current study, Lactobacillus brevis TCCC13007, a high GABA-producing strain, was isolated from naturally pickled Chinese vegetables. A two-step cellular bioconversion process was established using L. brevis TCCC13007 for the production of GABA. First, L. brevis cells were grown(More)
In this paper, we study SIR and rate control for CDMA data users on the forward link under average or peak power constraints. The QoS for data users is specified by delay and error rate constraints as well as a family of utility functions representing the throughput and fairness among the data users. It is found that the optimal SIR and rate control(More)
Different defense mechanisms of three spring wheat (Triticum aestivum L.) varieties were studied by withholding watering in well-watered pots to gradually increase water deficit of plants grown in containers. The strategies of plant adaptation were divided into three phases according to the severity of drought: first, a positive defense phase that started(More)
Autologous venous grafts, used to circumvent occluded coronary arteries during coronary artery bypass, often develop thrombosis and neointimal hyperplasia. During neointimal hyperplasia, vascular smooth muscle cells (VSMCs), exposed to substantially higher pressure and hemodynamic forces, proliferate and extracellular matrix accumulate causing narrowing of(More)
BACKGROUND AND PURPOSE ANRIL encodes a long antisense noncoding RNA in the INK4 locus. Although ANRIL has been proven to be associated with coronary heart disease, its roles in stroke are inconsistent, and sparse data are available regarding hemorrhagic stroke. METHODS A Chinese case-control study was conducted, comprising 1657 cases (724(More)
BACKGROUND In a swine model of acute myocardial infarction (AMI), Statins can enhance the therapeutic efficacy of mesenchymal stem cell (MSCs) transplantation. However, the mechanisms remain unclear. This study aims at assessing whether atorvastatin (Ator) facilitates the effects of MSCs through activation of nitric oxide synthase (NOS), especially(More)
Genome-wide association studies (GWAS) have been widely applied to identify informative SNPs associated with common and complex diseases. Besides single-SNP analysis, the interaction between SNPs is believed to play an important role in disease risk due to the complex networking of genetic regulations. While many approaches have been proposed for detecting(More)
Hypertrophic cardiomyopathy (HCM), the most common inherited cardiac disorder, is characterized by increased ventricular wall thickness that cannot be explained by underlying conditions, cadiomyocyte hypertrophy and disarray, and increased myocardial fibrosis. In as many as 50% of HCM cases, the genetic cause remains unknown, suggesting that more genes may(More)