Probabilistic linguistic term sets(PLTSs)are an effective tool for expressing subjective human cognition that offer advantages in the field ofmulti-attribute decision-making(MADM).However,studies have found that PLTSs...Probabilistic linguistic term sets(PLTSs)are an effective tool for expressing subjective human cognition that offer advantages in the field ofmulti-attribute decision-making(MADM).However,studies have found that PLTSs have lost their ability to accurately capture the views of decision-makers(DMs)in certain circumstances,such as when the DM hesitates between multiple linguistic terms or the decision information is incomplete,thus affecting their role in the decision-making process.Belief function theory is a leading streamof thought in uncertainty processing that is suitable for dealing with the limitations of PLTS.Therefore,the purpose of this study is to extend PLTS to incorporate belief function theory.First,we provide the basic concepts of the extended PLTS(i.e.,belief-based PLTS)through case analyses.Second,the aggregation operator of belief-based PLTS is defined with the ordered weighted average(OWA)-based soft likelihood function,which is improved by considering the reliability of the information source.Third,to measure the magnitude of different belief-based PLTSs,the belief interval of singleton is calculated,and the comparison method of belief-based PLTS is constructed based on probabilities.On the basis of the preceding discussion,we further develop an emergency decision framework that includes several novel techniques,such as attribute weight determination and decision information aggregation.Finally,the usefulness of the framework is demonstrated through a case study,and its effectiveness is illustrated through a series of comparisons.展开更多
AIM: To determine the prognostic risk factors of gastrointestinal bleeding in emergency department cases.METHODS: The trial was a retrospective single-center study involving 600 patients over 18-years-old and carried ...AIM: To determine the prognostic risk factors of gastrointestinal bleeding in emergency department cases.METHODS: The trial was a retrospective single-center study involving 600 patients over 18-years-old and carried out with approval by the Institutional Ethics Committee. Patient data included demographic characteristics, symptoms at admission, past medical history, vital signs, laboratory results, endoscopy and colonoscopy results, length of hospital stay, need of intensive care unit(ICU) admission, and mortality. Mortality rate was the principal endpoint of the study, while duration of hospital stay, required interventional treatment, and admission to the ICU were secondary endpoints.RESULTS: The mean age of patients was 61.92-yearsold. Among the 600 total patients, 363(60.5%) underwent upper gastrointestinal endoscopy and the most frequent diagnoses were duodenal ulcer(19.2%) and gastric ulcer(12.8%). One-hundred-and-fifteen(19.2%) patients required endoscopic treatment, 20(3.3%) required surgical treatment, and 5(0.8%) required angiographic embolization. The mean length of hospital stay was 5.21 ± 5.85 d. The mortality rate was 6.3%. The ICU admission rate was 5.3%. Patients with syncope, higher blood glucose levels, and coronary artery disease had significantly higher ICU admission rates(P = 0.029, P = 0.043, and P = 0.002, respectively). Patients with low thrombocyte levels, high creatinine, high international normalized ratio, and high serum transaminase levels had significantly longer hospital stay(P = 0.02, P = 0.001, P = 0.019, and P = 0.005, respectively). Patients who died had significantly higher serum blood urea nitrogen and creatinine levels(P = 0.016 and P = 0.038), and significantly lower mean blood pressure and oxygen saturation(P = 0.004 and P = 0.049). Malignancy and low Glasgow coma scale(GCS) were independent predictive factors of mortality.CONCLUSION: Prognostic factors for gastrointestinal bleeding in emergency room cases are malignancy, hypotension on admission, low GCS, and impaired kidney function.展开更多
The multi-agent theory is introduced and applied in the way to strike the control amount of emergency control according to stability margin, based on which an emergency control strategy of the power system is presente...The multi-agent theory is introduced and applied in the way to strike the control amount of emergency control according to stability margin, based on which an emergency control strategy of the power system is presented. The multi-agent control structure which is put forward in this article has three layers: system agent, areal agent and local agents. System agent sends controlling execution signal to the load-local agent according to the position and the amount of load shedding upload from areal agent;The areal agent judges whether the power system is stable by monitoring and analyzing the maximum relative power angle. In the condition of instability, determines the position of load-shedding, and the optimal amount of load-shedding according to the stability margin based on the corrected transient energy function, upload control amount to system agent;local-generator agent is mainly used for real-time monitoring the power angle of generator sets and uploading it to the areal agency, local-loads agent control load by receiving the control signal from system agent. Simulations on IEEE39 system show that the proposed control strategy improves the system stability.展开更多
Introduction: Penile emergencies are multiple and varied, and they can jeopardize the sexual functional prognosis of the patient. The objective of our study was to evaluate the sexual functional prognosis of patients ...Introduction: Penile emergencies are multiple and varied, and they can jeopardize the sexual functional prognosis of the patient. The objective of our study was to evaluate the sexual functional prognosis of patients admitted for penile emergencies. Patients and Methods: We conducted a cross-sectional study from January 1 to 31, 2021, in the urology department of the University Hospital. Variables included sociodemographic, diagnostic, and evolutionary data of sexually active patients admitted for a penile emergency. Results: During this period, 68 patients were admitted for penile emergencies. We included 45 sexually active patients, with a mean age ranging from 34.5 ± 14.1 years with extremes of 16 and 90 years. The most frequent penile emergencies were priapism (62.2%) and penile fracture (22.2%), with a mean time for treatment of 21.4 ± 52.5 hours. The sexual functional prognosis was very satisfactory (normal erection) in 71.1% (n = 32) of patients. Loss of erectile function was observed in 4.4% (n = 2) of cases. Conclusion: Penile emergencies are relatively frequent, dominated by priapism and penile fracture in our context. The sexual functional prognosis is good.展开更多
目的:探讨危机理论指导下的创伤急救护理对颅脑外伤患者急救时间、神经功能和生命体征的影响。方法:选择2020年9月—2023年9月在连云港市中医院接受颅脑外伤急救治疗的102例患者作为研究对象,根据随机数表法将患者分为对照组和观察组,...目的:探讨危机理论指导下的创伤急救护理对颅脑外伤患者急救时间、神经功能和生命体征的影响。方法:选择2020年9月—2023年9月在连云港市中医院接受颅脑外伤急救治疗的102例患者作为研究对象,根据随机数表法将患者分为对照组和观察组,各51例。对照组接受常规急救护理,观察组在对照组基础上接受危机理论指导下的创伤急救护理。比较两组急救时间(有效抢救时间、确诊时间和急诊至手术时间)、神经功能[美国国立卫生研究院脑卒中量表(National Institutes of Health stroke scale,NIHSS)评分和格拉斯哥昏迷指数(Glasgow coma scale,GCS)]、生命体征(呼吸频率、心率、收缩压和舒张压)及并发症(缺血性痉挛、电解质紊乱和肢体功能障碍)发生情况。结果:观察组有效抢救时间、确诊时间、急诊至手术时间短于对照组,差异有统计学意义(P<0.05);观察组护理后NIHSS评分低于对照组,GCS评分高于对照组,差异有统计学意义(P<0.05);观察组护理后呼吸频率、心率、收缩压、舒张压低于对照组,差异有统计学意义(P<0.05);观察组并发症发生率低于对照组,差异有统计学意义(P<0.05)。结论:危机理论指导下的创伤急救护理可有效缩短颅脑外伤患者急救时间,改善神经功能和生命体征,降低并发症发生率。展开更多
基金supported by National Social Science Foundation of China (Grant No.17ZDA030).
文摘Probabilistic linguistic term sets(PLTSs)are an effective tool for expressing subjective human cognition that offer advantages in the field ofmulti-attribute decision-making(MADM).However,studies have found that PLTSs have lost their ability to accurately capture the views of decision-makers(DMs)in certain circumstances,such as when the DM hesitates between multiple linguistic terms or the decision information is incomplete,thus affecting their role in the decision-making process.Belief function theory is a leading streamof thought in uncertainty processing that is suitable for dealing with the limitations of PLTS.Therefore,the purpose of this study is to extend PLTS to incorporate belief function theory.First,we provide the basic concepts of the extended PLTS(i.e.,belief-based PLTS)through case analyses.Second,the aggregation operator of belief-based PLTS is defined with the ordered weighted average(OWA)-based soft likelihood function,which is improved by considering the reliability of the information source.Third,to measure the magnitude of different belief-based PLTSs,the belief interval of singleton is calculated,and the comparison method of belief-based PLTS is constructed based on probabilities.On the basis of the preceding discussion,we further develop an emergency decision framework that includes several novel techniques,such as attribute weight determination and decision information aggregation.Finally,the usefulness of the framework is demonstrated through a case study,and its effectiveness is illustrated through a series of comparisons.
文摘AIM: To determine the prognostic risk factors of gastrointestinal bleeding in emergency department cases.METHODS: The trial was a retrospective single-center study involving 600 patients over 18-years-old and carried out with approval by the Institutional Ethics Committee. Patient data included demographic characteristics, symptoms at admission, past medical history, vital signs, laboratory results, endoscopy and colonoscopy results, length of hospital stay, need of intensive care unit(ICU) admission, and mortality. Mortality rate was the principal endpoint of the study, while duration of hospital stay, required interventional treatment, and admission to the ICU were secondary endpoints.RESULTS: The mean age of patients was 61.92-yearsold. Among the 600 total patients, 363(60.5%) underwent upper gastrointestinal endoscopy and the most frequent diagnoses were duodenal ulcer(19.2%) and gastric ulcer(12.8%). One-hundred-and-fifteen(19.2%) patients required endoscopic treatment, 20(3.3%) required surgical treatment, and 5(0.8%) required angiographic embolization. The mean length of hospital stay was 5.21 ± 5.85 d. The mortality rate was 6.3%. The ICU admission rate was 5.3%. Patients with syncope, higher blood glucose levels, and coronary artery disease had significantly higher ICU admission rates(P = 0.029, P = 0.043, and P = 0.002, respectively). Patients with low thrombocyte levels, high creatinine, high international normalized ratio, and high serum transaminase levels had significantly longer hospital stay(P = 0.02, P = 0.001, P = 0.019, and P = 0.005, respectively). Patients who died had significantly higher serum blood urea nitrogen and creatinine levels(P = 0.016 and P = 0.038), and significantly lower mean blood pressure and oxygen saturation(P = 0.004 and P = 0.049). Malignancy and low Glasgow coma scale(GCS) were independent predictive factors of mortality.CONCLUSION: Prognostic factors for gastrointestinal bleeding in emergency room cases are malignancy, hypotension on admission, low GCS, and impaired kidney function.
文摘The multi-agent theory is introduced and applied in the way to strike the control amount of emergency control according to stability margin, based on which an emergency control strategy of the power system is presented. The multi-agent control structure which is put forward in this article has three layers: system agent, areal agent and local agents. System agent sends controlling execution signal to the load-local agent according to the position and the amount of load shedding upload from areal agent;The areal agent judges whether the power system is stable by monitoring and analyzing the maximum relative power angle. In the condition of instability, determines the position of load-shedding, and the optimal amount of load-shedding according to the stability margin based on the corrected transient energy function, upload control amount to system agent;local-generator agent is mainly used for real-time monitoring the power angle of generator sets and uploading it to the areal agency, local-loads agent control load by receiving the control signal from system agent. Simulations on IEEE39 system show that the proposed control strategy improves the system stability.
文摘Introduction: Penile emergencies are multiple and varied, and they can jeopardize the sexual functional prognosis of the patient. The objective of our study was to evaluate the sexual functional prognosis of patients admitted for penile emergencies. Patients and Methods: We conducted a cross-sectional study from January 1 to 31, 2021, in the urology department of the University Hospital. Variables included sociodemographic, diagnostic, and evolutionary data of sexually active patients admitted for a penile emergency. Results: During this period, 68 patients were admitted for penile emergencies. We included 45 sexually active patients, with a mean age ranging from 34.5 ± 14.1 years with extremes of 16 and 90 years. The most frequent penile emergencies were priapism (62.2%) and penile fracture (22.2%), with a mean time for treatment of 21.4 ± 52.5 hours. The sexual functional prognosis was very satisfactory (normal erection) in 71.1% (n = 32) of patients. Loss of erectile function was observed in 4.4% (n = 2) of cases. Conclusion: Penile emergencies are relatively frequent, dominated by priapism and penile fracture in our context. The sexual functional prognosis is good.
文摘目的:探讨危机理论指导下的创伤急救护理对颅脑外伤患者急救时间、神经功能和生命体征的影响。方法:选择2020年9月—2023年9月在连云港市中医院接受颅脑外伤急救治疗的102例患者作为研究对象,根据随机数表法将患者分为对照组和观察组,各51例。对照组接受常规急救护理,观察组在对照组基础上接受危机理论指导下的创伤急救护理。比较两组急救时间(有效抢救时间、确诊时间和急诊至手术时间)、神经功能[美国国立卫生研究院脑卒中量表(National Institutes of Health stroke scale,NIHSS)评分和格拉斯哥昏迷指数(Glasgow coma scale,GCS)]、生命体征(呼吸频率、心率、收缩压和舒张压)及并发症(缺血性痉挛、电解质紊乱和肢体功能障碍)发生情况。结果:观察组有效抢救时间、确诊时间、急诊至手术时间短于对照组,差异有统计学意义(P<0.05);观察组护理后NIHSS评分低于对照组,GCS评分高于对照组,差异有统计学意义(P<0.05);观察组护理后呼吸频率、心率、收缩压、舒张压低于对照组,差异有统计学意义(P<0.05);观察组并发症发生率低于对照组,差异有统计学意义(P<0.05)。结论:危机理论指导下的创伤急救护理可有效缩短颅脑外伤患者急救时间,改善神经功能和生命体征,降低并发症发生率。
