Based on the phenomenon that ratio of gold to oil soared 200, this paper selects CSI 300 index and S&P 500 as representatives Chinese American capital markets, respectively. Specifically, VAR model is used for empirical analysis. Through unit root test, confirmation lag order, impulse response analysis Granger causality it concluded there exists a correlation between gold-oil price markets....

PURPOSE The purpose of the study was to report the outcomes for cases of proliferative vitreoretinopathy (PVR) that received retinotomy and removal of subretinal proliferative tissue under direct visualization using retinal turnover. METHODS Nineteen eyes with posterior and/or anterior grade C1-12 PVR that had undergone retinotomy and retinal turnover were reviewed. Main outcomes included the...

Throughout history, investors have attempted to determine the future states and prices of instruments that they consider to invest in. Thus, various econometric models have been developed in order to determine the variables influencing the prices of investment instruments, as well as the relationships between such variables. The main aim of the present study was to examine the variables that ma...

The chemical composition of the essential oils of five natural populations of P. ovalifolia from central and southwest China and their interpopulation variability were first analyzed by using GC-MS. Twenty-two essential oil compounds were obtained, in which eighteen ones were identified and characterized representing 95%-96% of the oil composition. Three main chemotypes, i.e., the methyl-acetyl...

Extant birds have an extensive spectral range of colour vision among vertebrates, but evidence of colour vision among extinct birds has hitherto been lacking. An exceptionally well-preserved extinct enantiornithine fossil bird from the Early Cretaceous Jiufotang Formation (120 Ma) of Liaoning, China, provides the first report of mineralised soft tissue of a bird eye. Cone cells are identified, ...

We propose using the latest wide bore fast field cycling NMR relaxometers for measuring the nuclear magnetic relaxation dispersion (NMRD) profiles of the logarithmic average proton-water <1/T1> in carbonate rock cores samples of 1 inch diameter and in different crude oil/brine mixings. The observed bilogarithmic frequency behaviours of the NMRD have been interpreted with a proposed theoretical ...