A Beale-Kato-Majda Blow-up criterion for the 3-D compressible Navier-Stokes equations

We prove a blow-up criterion in terms of the upper bound of the density for the strong solution to the 3-D compressible Navier-Stokes equations. The initial vacuum is allowed. The main ingredient of the proof is \textit{a priori} estimate for an important quantity under the assumption that the density is upper bounded, whose divergence can be viewed as the effective viscous flux.Comment: 17 page

The sustainable infrastructure finance of China development bank: composition, experience and policy implications

This repository item contains a working paper from the Boston University Global Economic Governance Initiative. The Global Economic Governance Initiative (GEGI) is a research program of the Center for Finance, Law & Policy, the Frederick S. Pardee Center for the Study of the Longer-Range Future, and the Frederick S. Pardee School of Global Studies. It was founded in 2008 to advance policy-relevant knowledge about governance for financial stability, human development, and the environment

Impaired plasma lipid profiles in acute hepatitis

The present study examined plasma lipid profiles in thirty patients suffered from acute viral hepatitis. Patients' blood samples were collected at both the debut and recovery of diseases. Thirty sex and age matched normal subjects were included as controls. Plasma total triglycerides (TG), total cholesterol, high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), apolipoprotein AI (ApoAI), apolipoprotein B (ApoB), lipoprotein (a) (Lp(a)), blood coagulation status including prothrombin complex activity and activated partial tromboplastin time (APTT), and hepatic functions were determined by the automatic biochemical analytical instrument. It demonstrated that plasma levels of total cholesterol, HDL-C and apoAI were significantly lower in the patients at the acute phase of hepatitis than those in normal subjects, whereas plasma levels of TG and LDL-C were obviously higher in the patients than in normal subjects (P < 0.05). Moreover, we demonstrated that patients' plasma levels of total cholesterol, LDL-C, HDL-C and apoAI were lower at the active phase of the diseases than at the recovering phase, which indicating that acute liver damage could significant influence lipid metabolism in vivo. No pathological changes of blood coagulation status occurred in these patients during the study as all selected patients had moderate hepatitis. It may conclude that examinations of plasma lipid profile could be considered as a clinical index to reflect liver damage in the active phase of hepatitis

The International Financial Crisis and China's Foreign Exchange Reserve Management

The US financial crisis and subsequent European sovereign debt crisis not only constitute serious threats to the security of China’s foreign exchange reserves, but also provide an advantageous opportunity for China to change its ideas on foreign exchange reserve management. First, according to rules of thumb, the authors assess the optimal size of China’s foreign exchange reserves in terms of short-term external debt, imports and domestic liquid assets. Second, the paper estimates the asset structure of China’s foreign reserves based on the statistics on China’s holding of US and Japanese securities. Third, the authors calculate the People’s Bank of China sterilization costs from the perspective of issuing central bank notes and raising required reserve ratios. Fourth, the paper measures the total and net investment yield of China’s foreign reserves in terms of nominal dollars, real dollars (dollar index) and nominal renminbi. Finally, the authors put forward suggestions on how to accelerate the diversification of China’s international reserves

The International Financial Crisis and China's Foreign Exchange Reserve Management

The US financial crisis and subsequent European sovereign debt crisis not only constitute serious threats to the security of China’s foreign exchange reserves, but also provide an advantageous opportunity for China to change its ideas on foreign exchange reserve management. First, according to rules of thumb, the authors assess the optimal size of China’s foreign exchange reserves in terms of short-term external debt, imports and domestic liquid assets. Second, the paper estimates the asset structure of China’s foreign reserves based on the statistics on China’s holding of US and Japanese securities. Third, the authors calculate the People’s Bank of China sterilization costs from the perspective of issuing central bank notes and raising required reserve ratios. Fourth, the paper measures the total and net investment yield of China’s foreign reserves in terms of nominal dollars, real dollars (dollar index) and nominal renminbi. Finally, the authors put forward suggestions on how to accelerate the diversification of China’s international reserves