目的探讨生物反馈治疗慢传输型便秘的前景及机制。方法使用Medtronic Synectics公司的SYS Orin PC-12和U-Control TMEMG Home Trainer生物反馈训练系统为患者进行治疗,使患者学会识别自身正常和异常的电信号,教会患者进行正确的排便,并...目的探讨生物反馈治疗慢传输型便秘的前景及机制。方法使用Medtronic Synectics公司的SYS Orin PC-12和U-Control TMEMG Home Trainer生物反馈训练系统为患者进行治疗,使患者学会识别自身正常和异常的电信号,教会患者进行正确的排便,并对治疗前后患者的症状变化及肛管静息压、最大收缩压、直肠容量感觉阈值、直肠肛门抑制性反射等进行自身对照研究。结果慢传输型便秘生物反馈治疗后可使肛管平均静息压增大,最大收缩压减少,直肠容量感觉阈值减少,直肠肛门抑制性反射减少,肛管向量容积舒张期减少,收缩期增加。结论生物反馈疗法可以明显改善便秘患者的排便困难、粪便太硬、便意减少等症状,并使患者学会正确的排便动作,为生物反馈治疗便秘的临床应用提供了依据。展开更多
This paper is mainly concerned with entire solutions of the following two-species Lotka-Volterra competition system with nonlocal(convolution)dispersals:{u_(t)=k*u-u+u(1-u-av),x∈R,t∈R,vt=d(k*v-v)+rv(1-v-bu),c∈R,t∈...This paper is mainly concerned with entire solutions of the following two-species Lotka-Volterra competition system with nonlocal(convolution)dispersals:{u_(t)=k*u-u+u(1-u-av),x∈R,t∈R,vt=d(k*v-v)+rv(1-v-bu),c∈R,t∈R.(0.1)Here a≠1,b≠1,d,and r are positive constants.By studying the eigenvalue problem of(0.1)linearized at(ϕc(ξ),0),we construct a pair of super-and sub-solutions for(0.1),and then establish the existence of entire solutions originating from(ϕc(ξ),0)as t→−∞,whereϕc denotes the traveling wave solution of the nonlocal Fisher-KPP equation ut=k*u−u+u(1−u).Moreover,we give a detailed description on the long-time behavior of such entire solutions as t→∞.Compared to the known works on the Lotka-Volterra competition system with classical diffusions,this paper overcomes many difficulties due to the appearance of nonlocal dispersal operators.展开更多
文摘目的探讨生物反馈治疗慢传输型便秘的前景及机制。方法使用Medtronic Synectics公司的SYS Orin PC-12和U-Control TMEMG Home Trainer生物反馈训练系统为患者进行治疗,使患者学会识别自身正常和异常的电信号,教会患者进行正确的排便,并对治疗前后患者的症状变化及肛管静息压、最大收缩压、直肠容量感觉阈值、直肠肛门抑制性反射等进行自身对照研究。结果慢传输型便秘生物反馈治疗后可使肛管平均静息压增大,最大收缩压减少,直肠容量感觉阈值减少,直肠肛门抑制性反射减少,肛管向量容积舒张期减少,收缩期增加。结论生物反馈疗法可以明显改善便秘患者的排便困难、粪便太硬、便意减少等症状,并使患者学会正确的排便动作,为生物反馈治疗便秘的临床应用提供了依据。
基金supported by the NSF of China (12271226)the NSF of Gansu Province of China (21JR7RA537)+4 种基金the Fundamental Research Funds for the Central Universities (lzujbky-2022-sp07)supported by the Basic and Applied Basic Research Foundation of Guangdong Province (2023A1515011757)the National Natural Science Foundation of China (12271494)the Fundamental Research Funds for the Central Universities,China University of Geosciences (Wuhan) (G1323523061)supported by the NSF of China (12201434).
文摘This paper is mainly concerned with entire solutions of the following two-species Lotka-Volterra competition system with nonlocal(convolution)dispersals:{u_(t)=k*u-u+u(1-u-av),x∈R,t∈R,vt=d(k*v-v)+rv(1-v-bu),c∈R,t∈R.(0.1)Here a≠1,b≠1,d,and r are positive constants.By studying the eigenvalue problem of(0.1)linearized at(ϕc(ξ),0),we construct a pair of super-and sub-solutions for(0.1),and then establish the existence of entire solutions originating from(ϕc(ξ),0)as t→−∞,whereϕc denotes the traveling wave solution of the nonlocal Fisher-KPP equation ut=k*u−u+u(1−u).Moreover,we give a detailed description on the long-time behavior of such entire solutions as t→∞.Compared to the known works on the Lotka-Volterra competition system with classical diffusions,this paper overcomes many difficulties due to the appearance of nonlocal dispersal operators.
