the surface parameter of nanoparticles such as hydrophobicity and a hydrophilicity on protein structure and function is very important. in this study, conformational changes of glucose oxidase (gox) in the mercaptopurine: gnps and 11-mercaptoundecanoic acid: gnps as a hydrophobic and a hydrophilic gnps surface was investigated by various spectroscopic techniques, including: uv-vis absorption, f...

Based on a recently introduced metric for measuring distances between configurations, we introduce distance-energy (DE) plots to characterize the potential energy surface of clusters. Producing such plots is computationally feasible on the density functional level since it requires only a few hundred stable low energy configurations including the global minimum. By using standard criteria based...

Land applications of manure from confined animal systems and direct deposit by grazing animals are both major sources of nutrients in streams. The objectives of this study were to determine the effects of P-based manure applications on total suspended solids (TSS) and nutrient losses from dairy manures and poultry litter surface applied to pasturelands and to compare the nutrient losses transpo...

A 2-year ®eld study was conducted in eastern Ontario to evaluate the effect of water table management (WTM) on the yields of strip-cropped corn (Zea mays L.) and soybean (Glycine max Merr.). The WTM treatments consisted of two subirrigation treatments with water table controls set at 0.50 m (CWT0.5) or 0.75 m (CWT0.75) from the soil surface, and a free drainage (FD) treatment (water table 1.00 ...

Tillage may in ̄uence nitrate losses from agricultural soils. Losses of nitrate were measured in drain ̄ow at 60 cm depth and in combined surface runoff and inter ̄ow in the A horizon (ˆsurface layer ̄ow) on hydrologically sealed plots with a two-year comparison (1988±1990) of shallow-tine cultivation vs. mouldboard ploughing. Ploughing increased concentrations and loadings of nitrate in drain ̄ow ...

The role of litter in nutrient cycling in a Typha angustifolia dominated brackish tidal marsh was studied with a field experiment. In replicated plots, litter was either removed, replaced with plastic strips (pseudolitter), increased threefold, or left unaltered. One set of plots received fortnightly surface applications of ammonium phosphate solution at an annual rate of 65 g/m2 of N and 72 g/...

Rainfall patterns and land cover are two important factors that affect the runoff generation process. To determine the surface and subsurface flows associated with different rainfall patterns on sloping Ferralsols under different land cover types, observational data related to surface and subsurface flows from 5 m × 15 m plots were collected from 2010 to 2012. The experiment was conducted to as...