Objective To evaluate the safety and effectiveness of direct gastroscopy for detecting gastric cancer.Methods Clinical screening by direct gastroscopy was per
Quantifying trends in soil microbial biomass carbon (SMBC) under contrasting management conditions is important in understanding the dynamics of soil organic ma
With the rapid development of the Internet, multi documents summarization is becoming a very hot research topic. In order to generate a summarization that can e
Based on the investigation and analysis of characteristics of precipitation, natural environment, socio-economic factors and soil erosion, this paper indicates
To study the structure of microbial communities in the biological hydrogen production reactor and determine the ecological function of hydrogen producing bacter