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Therefore, van der Waals' interactions between acetylcholinesterase and these drugs are stronger than those between butyrylcholinesterase probably due to a small active site gorge and a significant peripheral anionic site for acetylcholinesterase.
      
Novel 5-substituted esters and homologous ester and amido derivatives of 4,5 dihydro-3,3-diethyl-2(3H)-furanone were synthesized and evaluated for anticonvulsant activity in rodents and for affinity to a site on the GABAA receptor complex ([3H]TBOB).
      
The results showed that these compounds are capable of important interactions with the NNRT binding site, which encouraged us to submit them for biological assay.
      
From these data, it may be deduced that the administration of high concentration of 18-methyl norethindrone can displace ketoprofen from its secondary binding site.
      
This work attempts to calculate the binding-site number using fluorescence spectroscopic method with bovine serum albumin (BSA) and Indo-1 as protein and ligand models, respectively.
      
The method for calculating the binding-site number in BSA for Indo-1 was developed based on the relationships between changes in Indo-1 fluorescence intensity and the analytical concentration of BSA.
      
This paper provides a reference on calculating the binding-site number in proteins for ligands and studying their interactions by fluorescence spectroscopic methods.
      
The active site and crystal nucleus are formed due to the comprehensive effect of electricity, thermodynamics and chemistry.
      
Quantitative site classification in the key county in the conversion of farmland to forests project
      
The site conditions were classified quantitatively.
      
The results show that CFFP at this site comprises five site-type groups and 19 site types.
      
A quantitative site classification system method has been established in this paper.
      
The forests were divided into four site classes, using statistical and analytical techniques in a quantitative model, in descending order where site class I was the best.
      
On this basis, the growth of natural poplar-birch forests in the different site classes was studied.
      
The results indicate that litter decomposes in the tropical site 1.36-3.06 times more rapidly than in the subtropical site.
      
These values accounted for 28.6%, 13.8%, and 61.0% of their respective counterparts in the natural secondary forests under the same site conditions in the region.
      
This study is based on Quercus mongolica, Fraxinus mandshurica, Phellodendron amurense, Juglans mandshurica, Tilia amurensis, and Pinus koraiensis trees of the same age (12 years) and seedling origin under the same site conditions.
      
Division of afforestation site type in the watershed of Wangjiagou, West Shanxi through GIS
      
In terrestrial ecosystems, soil nutrient regimes at a plant's living site generally represent the plant's "nutrition habitat".
      
kwangtungensis; 4) variability in spatial distribution among the 105 canopy tree species could be attributed to variations to site environmental factors.
      
 

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