We have described a 0.4-Hz rhythm in renal sympathetic nerve activity (SNA) that is tightly coupled to 0.4-Hz oscillations in blood pressure in the unanesthetized rat. In previous work, the relationship between SNA and fluctuations in mean arterial blood pressure (MAP) was described by a set of two first-order differential equations. We have now modified… (More)
The goal of this analysis was to quantify the relationship between renal sympathetic nerve activity (SNA) and mean arterial blood pressure (MAP). We previously recorded renal SNA and MAP in conscious rats during a stressful behavioral stimulus and during a nonstressful stimulus. We then formulated a set of two linear, first-order differential equations that… (More)
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BACKGROUND Hepatitis B virus-associated hepatocellular carcinoma (HBV-HCC) and hepatitis C virus (HCV)-HCC are the main indications for liver transplantation. We compared differences in survival outcomes between these two conditions. METHODS AND FINDINGS The China Liver Transplant Registry (CLTR) contains data collated from all transplants performed in 86… (More)
In this paper, a new hybrid conjugate gradient method is proposed for solving unconstrained optimization problems. The parameter β k is computed as a convex combination of β F R k and β * k algorithms, i.e. β N k = (1 − θ k)β F R k + θ k β * k. The parameter θ k is computed in such a way so that the direction corresponding to the conjugate gradient… (More)
This paper presents characterizations of M-fuzzifying matroids by means of two kinds of fuzzy operators, called M-fuzzifying derived operators and M-fuzzifying difference derived operators.