Biochar application to soil is commonly recognized to improve soil fertility and consequently biomass and food production sustainably.We re-examined the robustness of the underlying data and found that,of the 12000+ p...Biochar application to soil is commonly recognized to improve soil fertility and consequently biomass and food production sustainably.We re-examined the robustness of the underlying data and found that,of the 12000+ publications on“biochar and agriculture”used in meta-studies,only 109 Institute for Scientific Information(ISI)papers(or 0.9%)provide experimental data on the impacts on crop yield and/or biomass production.展开更多
Objective To compare sequential fascial dilation(SFD)versus one-shot dilation(OSD)in the pediatric patients undergoing percutaneous nephrolithotomy.Methods The present study is an observational study.The study subject...Objective To compare sequential fascial dilation(SFD)versus one-shot dilation(OSD)in the pediatric patients undergoing percutaneous nephrolithotomy.Methods The present study is an observational study.The study subjects were divided into two groups.In group 1,renal dilation was done using the SFD and in group 2,renal dilation was done using the OSD.The amount of time exposed to radiation during access to pelvicalyceal system was estimated.Complications,stone free rates,ancillary procedures for residual stones and hospital stay were compared.Modified Clavien-Dindo classification was used for grading the complications.Results Radiation exposure and operative time were less in OSD group(95%confidence interval(CI)3.068 to 14.072,and 2.565 to 12.435,p<0.005).The mean drop of hematocrit was statistically less significant in OSD group(p=0.032).In both groups,complications,stone free rate and hospital stay were statistically insignificant.Conclusions OSD is feasible in the children with reduced radiation exposure and shorter operative time.The outcome was similar to SFD.展开更多
文摘Biochar application to soil is commonly recognized to improve soil fertility and consequently biomass and food production sustainably.We re-examined the robustness of the underlying data and found that,of the 12000+ publications on“biochar and agriculture”used in meta-studies,only 109 Institute for Scientific Information(ISI)papers(or 0.9%)provide experimental data on the impacts on crop yield and/or biomass production.
文摘Objective To compare sequential fascial dilation(SFD)versus one-shot dilation(OSD)in the pediatric patients undergoing percutaneous nephrolithotomy.Methods The present study is an observational study.The study subjects were divided into two groups.In group 1,renal dilation was done using the SFD and in group 2,renal dilation was done using the OSD.The amount of time exposed to radiation during access to pelvicalyceal system was estimated.Complications,stone free rates,ancillary procedures for residual stones and hospital stay were compared.Modified Clavien-Dindo classification was used for grading the complications.Results Radiation exposure and operative time were less in OSD group(95%confidence interval(CI)3.068 to 14.072,and 2.565 to 12.435,p<0.005).The mean drop of hematocrit was statistically less significant in OSD group(p=0.032).In both groups,complications,stone free rate and hospital stay were statistically insignificant.Conclusions OSD is feasible in the children with reduced radiation exposure and shorter operative time.The outcome was similar to SFD.
