This paper examines risk transmission and migration among six US measures of credit and market risk during the full period 2004-2011 period and the 2009-2011 recovery subperiod, with a focus on four sectors related to the highly volatile oil price. There are more long-run equilibrium risk...

The two-site Holstein model with different site energies, the simplest model to mimic disorder, is analytically studied by a diagonalization method of coherent states. The solutions obtained in our work are exact, and agree well with those derived by a modified Lang-Firsov (MLF) method in the...

The metal ion doped silica gel adsorbents based on ceramic fiber were prepared by impregnation coprecipitation method. The effects of the concentration and the acidity of impregnation salt (cobalt, aluminum or titanium sulfate) solution on the adsorption capacity of the modified silica gels were...

The mining ecotype (ME) and non-mining ecotype (NME) of Polygonum hydropiper (P. hydropiper) were used as materials to study their potential removal capabilities for nitrogen (N) and phosphorus (P) with two (high and low) concentrations from livestock wastewater. The plants were harvested at 15,...