Agriculture is the foundation of the national economic development and is the basic production and living of human society.In recent years,the development of Internet technology provides information sharing platform f...Agriculture is the foundation of the national economic development and is the basic production and living of human society.In recent years,the development of Internet technology provides information sharing platform for people,and more and more people begin to pay close attention to the dynamic of agricultural production and related industries,especially the quality and safety of agricultural products,much attention has been paid to safety issues.In view of its importance and closeness to the daily life of the public,it is necessary to pay great attention to the mass public opinions on the quality and safety of agricultural products,find out the crux of the problem through scientific research and judgment,and respond to the public questions in a timely manner.In this way,the value of relevant public opinion information can be utilized to provide an important basis for relevant departments to make correct decisions.展开更多
BACKGROUND The incidence of colorectal cancer(CRC)has increased in recent decades,and ranks fourth among males and third among females in China.Surgical resection remains the most important treatment modality for cura...BACKGROUND The incidence of colorectal cancer(CRC)has increased in recent decades,and ranks fourth among males and third among females in China.Surgical resection remains the most important treatment modality for curative intent in CRC.Several studies found that surgeon volumes and specialization appeared to be associated with improved overall survival(OS).Moreover,numerous reports have suggested that specialization and minimally invasive surgery have gained increased popularity in CRC surgery.However,few studies have specifically examined the role and long-term survival of all stage CRC in a real-world study.AIM To evaluate the effect of surgeon specialization on survival changes and minimally invasive surgery utilization in a real world study.METHODS A retrospective analysis on the association between surgeon specialization and OS between 2008 and 2013 in Zhongshan Hospital CRC database was performed.Standard demographic,clinicopathologic,surgical and follow-up data were obtained from the CRC database.Surgeon specialty was categorized as colorectal surgeon(CS)and general surgeon(GS).CRC patients who underwent primary surgical resection were enrolled.RESULTS A total of 5141 CRC patients who underwent primary surgical resection between 2008 and 2013 were evaluated,1748(34.0%)of these by CS.The percentage of minimally invasive procedures in the CS group showed an increasing trend.There was no benefit associated with surgeon specialization for stage I,II and IV patients.Surgeon specialization exhibited a significant association with OS solely among stage III patients,with 5-year OS rates of 76%and 67%for the CS and GSgroups,respectively(P<0.01).Further analyses found that surgeon specialization was significantly associated with survival only in stage III rectal patients,and the 5-year OS rate in the CS group and GS group was 80%and 67%,respectively(P<0.01).CONCLUSION Surgeon specialization is associated with improved OS after primary surgery in stage III rectal patients.An appropriate surgical technique,perioperative program and adjuvant therapy may contribute to survival benefit in these patients.展开更多
Electrochemical water splitting is regarded as the most auspicious technology for renewable sources,transport,and storage of hydrogen energy.Currently,noble Pt metal and noble-metal oxides(IrO_(2)and RuO_(2))are recog...Electrochemical water splitting is regarded as the most auspicious technology for renewable sources,transport,and storage of hydrogen energy.Currently,noble Pt metal and noble-metal oxides(IrO_(2)and RuO_(2))are recognized as state-of-the-art electrocatalysts for both the hydrogen evolution reaction(HER)and oxygen evolution reaction(OER),respectively.Searching for earth-abundant electrocatalysts for the HER and OER with remarkable performance and high stability to replace precious metals plays a significant role in the commercial application of electrochemical water splitting.In this review,recent advancements in nanostructured transition metal electrocatalysts are assessed through the selected examples of nitrides,carbides,phosphides,sulfides,borides,layered double hydroxides,and oxides.Recent breakthroughs in nanostructured transition metal electrocatalysts are discussed in terms of their mechanisms,controllable production,structural design,and innovative strategies for boosting their performance.For instance,most nanostructured transition metal electrocatalysts for overall water splitting(OWS)only function well in neutral and alkaline solutions.Finally,current research challenges and future perspectives for increasing the performance of nanostructured transition metals for OWS are proposed.展开更多
文摘Agriculture is the foundation of the national economic development and is the basic production and living of human society.In recent years,the development of Internet technology provides information sharing platform for people,and more and more people begin to pay close attention to the dynamic of agricultural production and related industries,especially the quality and safety of agricultural products,much attention has been paid to safety issues.In view of its importance and closeness to the daily life of the public,it is necessary to pay great attention to the mass public opinions on the quality and safety of agricultural products,find out the crux of the problem through scientific research and judgment,and respond to the public questions in a timely manner.In this way,the value of relevant public opinion information can be utilized to provide an important basis for relevant departments to make correct decisions.
文摘BACKGROUND The incidence of colorectal cancer(CRC)has increased in recent decades,and ranks fourth among males and third among females in China.Surgical resection remains the most important treatment modality for curative intent in CRC.Several studies found that surgeon volumes and specialization appeared to be associated with improved overall survival(OS).Moreover,numerous reports have suggested that specialization and minimally invasive surgery have gained increased popularity in CRC surgery.However,few studies have specifically examined the role and long-term survival of all stage CRC in a real-world study.AIM To evaluate the effect of surgeon specialization on survival changes and minimally invasive surgery utilization in a real world study.METHODS A retrospective analysis on the association between surgeon specialization and OS between 2008 and 2013 in Zhongshan Hospital CRC database was performed.Standard demographic,clinicopathologic,surgical and follow-up data were obtained from the CRC database.Surgeon specialty was categorized as colorectal surgeon(CS)and general surgeon(GS).CRC patients who underwent primary surgical resection were enrolled.RESULTS A total of 5141 CRC patients who underwent primary surgical resection between 2008 and 2013 were evaluated,1748(34.0%)of these by CS.The percentage of minimally invasive procedures in the CS group showed an increasing trend.There was no benefit associated with surgeon specialization for stage I,II and IV patients.Surgeon specialization exhibited a significant association with OS solely among stage III patients,with 5-year OS rates of 76%and 67%for the CS and GSgroups,respectively(P<0.01).Further analyses found that surgeon specialization was significantly associated with survival only in stage III rectal patients,and the 5-year OS rate in the CS group and GS group was 80%and 67%,respectively(P<0.01).CONCLUSION Surgeon specialization is associated with improved OS after primary surgery in stage III rectal patients.An appropriate surgical technique,perioperative program and adjuvant therapy may contribute to survival benefit in these patients.
基金the Guangxi Science and Technology Project(AA17204083,AB16380030)the link project of the National Natural Science Foundation of China and Fujian Province(U1705252)the Natural Science Foundation of Guangdong Province(2015A030312007).
文摘Electrochemical water splitting is regarded as the most auspicious technology for renewable sources,transport,and storage of hydrogen energy.Currently,noble Pt metal and noble-metal oxides(IrO_(2)and RuO_(2))are recognized as state-of-the-art electrocatalysts for both the hydrogen evolution reaction(HER)and oxygen evolution reaction(OER),respectively.Searching for earth-abundant electrocatalysts for the HER and OER with remarkable performance and high stability to replace precious metals plays a significant role in the commercial application of electrochemical water splitting.In this review,recent advancements in nanostructured transition metal electrocatalysts are assessed through the selected examples of nitrides,carbides,phosphides,sulfides,borides,layered double hydroxides,and oxides.Recent breakthroughs in nanostructured transition metal electrocatalysts are discussed in terms of their mechanisms,controllable production,structural design,and innovative strategies for boosting their performance.For instance,most nanostructured transition metal electrocatalysts for overall water splitting(OWS)only function well in neutral and alkaline solutions.Finally,current research challenges and future perspectives for increasing the performance of nanostructured transition metals for OWS are proposed.
