Concordance between 230Th/234U and 227Th/230 Th ages indicates a closed system of BZC-3. Based on the weighted mean of isotopic ratios of three 230Th/234U analyses of BZC-3, the upper age limit of Beijing Man Site should be(42±5 11)×104 years.
Developing culture industry by using the ruins is not the commercialization of protection unit, also is not the market of ruins, but is to promote positive cycle of the ruins protection and use through the development of reasonable cultural industry.
This text passes the research toward the museum exterior environment design unite with geographic environment,historical humanities environment and historical site,architecture design unite with Minimalism.
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.
Based on the analysis of burial patterns found at several archaeological sites in the Yellow River valley, this study demonstrates the existence of various forms of ritual practice directed towards ancestors during the Neolithic period.
The society was flourishing with great amount of archaeological sites.
The scarcity in natural resource led to substantial decrease in population and subsequent drop in archaeological sites.
A comparative analysis of trace element data of human skeletal material from four archaeological sites is presented.
Twelve seed specimens of varying ages and from different archaeological sites were analyzed for the presence of polymerized DNA and RNA.