The incidence of colorectal cancer has been increasing in the developed world including South Korea and China.Colonoscopy allows for greater diagnostic specificity and sensitivity compared with other types of examinat...The incidence of colorectal cancer has been increasing in the developed world including South Korea and China.Colonoscopy allows for greater diagnostic specificity and sensitivity compared with other types of examinations,such as the stool occult blood test,barium enema,and computed tomography colonography.Therefore,in recent years,the demand for colonoscopies has grown rapidly.New beginners including primary care physicians may help meet the increasing demand by performing colonoscopies.However,it is a challenge to learn the procedure due to the long learning-curve and the high rate of complications,such as perforation and bleeding,as compared to gastroscopy.Thus,considerable training and experience are required for optimal performance of colonoscopies.In order to perform a complete colonoscopic examination,there were a few important thingsto learn and remember,such as the position of examinee(e.g.,left and right decubitus,supine,and prone)and examiner(two-man method vs one-man standing method vs one-man sitting method),basic skills(e.g.,tip deflection,push forward and pull back,torque,air suction and insufflation),advanced skills(e.g.,jiggling and shaking,right and left turn shortening,hooking,and slide-by technique),assisting skills(e.g.,position change of examinee,abdominal compression,breathing-holding,and liquid-infusion technique),and intubation techniques along the lower gastrointestinal tract.In this article,we attempt to describe the methods of insertion and advancement of the colonoscope to the new beginners including primary care physician.We believe that this article may be helpful to the new beginners who wish to learn the procedure.展开更多
In the paper, cooperative two-stage network games are studied. At the first stage of the game, players form a network, while at the second stage players choose their behaviors according to the network realized at the ...In the paper, cooperative two-stage network games are studied. At the first stage of the game, players form a network, while at the second stage players choose their behaviors according to the network realized at the first stage. As a cooperative solution concept in the game, the core is considered.It is proved that some imputations from the core are time inconsistent, whereas one can design for them a time-consistent imputation distribution procedure. Moreover, the strong time consistency problem is also investigated.展开更多
文摘The incidence of colorectal cancer has been increasing in the developed world including South Korea and China.Colonoscopy allows for greater diagnostic specificity and sensitivity compared with other types of examinations,such as the stool occult blood test,barium enema,and computed tomography colonography.Therefore,in recent years,the demand for colonoscopies has grown rapidly.New beginners including primary care physicians may help meet the increasing demand by performing colonoscopies.However,it is a challenge to learn the procedure due to the long learning-curve and the high rate of complications,such as perforation and bleeding,as compared to gastroscopy.Thus,considerable training and experience are required for optimal performance of colonoscopies.In order to perform a complete colonoscopic examination,there were a few important thingsto learn and remember,such as the position of examinee(e.g.,left and right decubitus,supine,and prone)and examiner(two-man method vs one-man standing method vs one-man sitting method),basic skills(e.g.,tip deflection,push forward and pull back,torque,air suction and insufflation),advanced skills(e.g.,jiggling and shaking,right and left turn shortening,hooking,and slide-by technique),assisting skills(e.g.,position change of examinee,abdominal compression,breathing-holding,and liquid-infusion technique),and intubation techniques along the lower gastrointestinal tract.In this article,we attempt to describe the methods of insertion and advancement of the colonoscope to the new beginners including primary care physician.We believe that this article may be helpful to the new beginners who wish to learn the procedure.
基金supported by the Russian Foundation for Basic Research under Grant No.13-01-91160Saint Petersburg State University under Grant No.9.38.245.2014+4 种基金the National Natural Science Foundation of China under Grant Nos.71171120,71373262,and 71571108Specialized Research Fund for the Doctoral Program of Higher Education under Grant No.20133706110002Projects of International(Regional)Cooperation and Exchanges of the National Science Foundation of China under Grant Nos.71411130215 and 61661136002Natural Science Foundation of Shandong Province,China under Grant No.ZR2015GZ007Graduate Student Education Innovation Plan of Qingdao University under Grant Nos.QDY12017 and QDY13004
文摘In the paper, cooperative two-stage network games are studied. At the first stage of the game, players form a network, while at the second stage players choose their behaviors according to the network realized at the first stage. As a cooperative solution concept in the game, the core is considered.It is proved that some imputations from the core are time inconsistent, whereas one can design for them a time-consistent imputation distribution procedure. Moreover, the strong time consistency problem is also investigated.
