River flow regulations have great impact on the downstream aquatic ecosystem. It is important to investigate the response of target species to the changes in hydrological regimes so that we can explore possible remediation measures. Ecohydraulics models that integrate hydrodynamics processes and ecological processes have been shown to be efficient in achieving these objectives. This study devel...

The new method of quercetin extraction from Polygonum hydropiper L. by subcritical water was developed. High performance liquid chromatography was used for identification and quantification of flavonoids in the extract. The new method is environmentally friendly and more effective (7.6-times) than traditional flavonoids extraction methods using expensive and toxic organic solvents.

The genus Rhinoncomimus Wagner, 1940 includes seven species from Eastern Asia. One new species, Rh. continuus sp. nov. from Yunnan, China, is described. Habitus photos, illustrations and descriptions of all species except Rh. rubripes Korotyaev, 2006 (a possible junior synonym of R. niger Chûjô and Morimoto, 1959) are provided in detail, as well as key to species and distribution maps. In addit...

Introduction. Scanning electron microscopy acts as a promising method of analysis, allowing to describe in detail the identification features closely related plant species, well conduct micro-roentgenstructural analysis sample selected area with high accuracy. The is used study morphology surface and express determination composition elements various fields (physics, materials science, medicine...