We study age-structured branching models with reproduction law depending on the remaining lifetime of the parent. The lifespan of an individual is determined at its birth and its remaining lifetime decreases at the un...We study age-structured branching models with reproduction law depending on the remaining lifetime of the parent. The lifespan of an individual is determined at its birth and its remaining lifetime decreases at the unit speed. The models, without or with immigration, are constructed as measure-valued processes by pathwise unique solutions of stochastic equations driven by time-space Poisson random measures. In the subcritical branching case, we give a sufficient condition for the ergodicity of the process with immigration. Two large number laws and a central limit theorem of the occupation times are proved.展开更多
目的:探讨代谢综合征(MS)对泌尿系结石术后留置双J管患者附管结石发生风险的影响。方法:选取2022年10月至2023年10月本院行泌尿系结石术后留置双J管的79例患者作为研究对象,根据代谢指标检查结果将患者分为MS组(58例)与非MS组(21例),收...目的:探讨代谢综合征(MS)对泌尿系结石术后留置双J管患者附管结石发生风险的影响。方法:选取2022年10月至2023年10月本院行泌尿系结石术后留置双J管的79例患者作为研究对象,根据代谢指标检查结果将患者分为MS组(58例)与非MS组(21例),收集患者一般资料、实验室指标,返院拔除双J管时确认患者术后附管结石发生情况,采用单因素、多因素Logistic回归分析附管结石发生危险因素。结果:MS组高血压、糖尿病、高脂血症、吸烟史的患者占比体重指数及拔管时的SBP、FBG、UA、TC、TG、LDL-C、hs-CRP水平均高于非MS组,HDL-C低于非MS组(P P P P P Objective: To investigate the effect of metabolic syndrome (MS) on the risk of tubular stones in patients with postoperative urinary calculi after indentation of double J tubes. Methods: From October 2022 to October 2023, 79 patients who underwent urinary calculi surgery with double J tubes were selected as the study objects. According to the results of metabolic indexes, the patients were divided into MS group (58 cases) and non-MS group (21 cases). General data and laboratory indexes of the patients were collected. After the double-J tube was removed, the occurrence of tubular stones was confirmed, and the risk factors of tubular stones were analyzed by univariate and multivariate Logistic regression. Results: The proportion of patients with hypertension, diabetes, hyperlipidemia and smoking history in MS group and the levels of SBP, FBG, UA, TC, TG, LDL-C and hs-CRP at extubation were higher than those in non-MS group, and HDL-C was lower than those in non-MS group (P P P P P < 0.05). Conclusion: MS is closely related to the formation of tubular stones after double-J tube surgery, and can be used as an independent predictor of the occurrence of postoperative stones. In addition, long catheter indwelling time, presence of urinary protein and high level of FBG, UA and hs-CRP during extubation are risk factors for tubular stones. Early life style intervention in high-risk people with MS can help reduce the risk of morbidity.展开更多
基金supported by the National Key R&D Program of China(2020YFA0712901).
文摘We study age-structured branching models with reproduction law depending on the remaining lifetime of the parent. The lifespan of an individual is determined at its birth and its remaining lifetime decreases at the unit speed. The models, without or with immigration, are constructed as measure-valued processes by pathwise unique solutions of stochastic equations driven by time-space Poisson random measures. In the subcritical branching case, we give a sufficient condition for the ergodicity of the process with immigration. Two large number laws and a central limit theorem of the occupation times are proved.
文摘目的:探讨代谢综合征(MS)对泌尿系结石术后留置双J管患者附管结石发生风险的影响。方法:选取2022年10月至2023年10月本院行泌尿系结石术后留置双J管的79例患者作为研究对象,根据代谢指标检查结果将患者分为MS组(58例)与非MS组(21例),收集患者一般资料、实验室指标,返院拔除双J管时确认患者术后附管结石发生情况,采用单因素、多因素Logistic回归分析附管结石发生危险因素。结果:MS组高血压、糖尿病、高脂血症、吸烟史的患者占比体重指数及拔管时的SBP、FBG、UA、TC、TG、LDL-C、hs-CRP水平均高于非MS组,HDL-C低于非MS组(P P P P P Objective: To investigate the effect of metabolic syndrome (MS) on the risk of tubular stones in patients with postoperative urinary calculi after indentation of double J tubes. Methods: From October 2022 to October 2023, 79 patients who underwent urinary calculi surgery with double J tubes were selected as the study objects. According to the results of metabolic indexes, the patients were divided into MS group (58 cases) and non-MS group (21 cases). General data and laboratory indexes of the patients were collected. After the double-J tube was removed, the occurrence of tubular stones was confirmed, and the risk factors of tubular stones were analyzed by univariate and multivariate Logistic regression. Results: The proportion of patients with hypertension, diabetes, hyperlipidemia and smoking history in MS group and the levels of SBP, FBG, UA, TC, TG, LDL-C and hs-CRP at extubation were higher than those in non-MS group, and HDL-C was lower than those in non-MS group (P P P P P < 0.05). Conclusion: MS is closely related to the formation of tubular stones after double-J tube surgery, and can be used as an independent predictor of the occurrence of postoperative stones. In addition, long catheter indwelling time, presence of urinary protein and high level of FBG, UA and hs-CRP during extubation are risk factors for tubular stones. Early life style intervention in high-risk people with MS can help reduce the risk of morbidity.
