Objective: To evaluate the serious response during tilt-table test (TTT) and its prophylactic management. Method: Seventy-six elderly patients were tested at a tilt angle of 70 degrees for a maximum of 45 min and then...Objective: To evaluate the serious response during tilt-table test (TTT) and its prophylactic management. Method: Seventy-six elderly patients were tested at a tilt angle of 70 degrees for a maximum of 45 min and then subjected to isoprotere- nol-provocative tilt testing. ECG and blood pressure were monitored during the test and patients were kept at normal saline con- dition through a peripheral intravenous duct. Results: Fifty-one of 76 patients were defined as positive including 23 having serious response; 6 of the 23 patients had arteriosclerosis involving internal carotid arteries and 7 cases had bradycardia, two of which were associated with II°-I A-V block and the others with chronic atrial fibrillation. The serious response consisted of cardiac arrest for more than 5 s (6 cases), or serious bradycardia for more than 1 min (7 cases) or serious hypotension for more than 1 min (10 cases). Those with serious response were managed by returning to supine position, thus driving up legs and intravenous atropine, CPR (2 cases with cardiac arrest) and needing oxygen supplementation (11 cases). Only 2 hypotension patients recovered gradually by 10 min after emergency management, while others recovered rapidly with no complications. Conclusion: Although non-invasive, TTT may result in serious response, especially in elderly. Therefore proper patient selection, control of isoproterenol infusion and close observation of vital signs are decisive for a safe consequence.展开更多
This paper presents a new kind of back propagation neural network (BPNN) based on rough sets,called rough back propagation neural network (RBPNN).The architecture and training method of RBPNN are presented and the sur...This paper presents a new kind of back propagation neural network (BPNN) based on rough sets,called rough back propagation neural network (RBPNN).The architecture and training method of RBPNN are presented and the survey and analysis of RBPNN for the classification of remote sensing multi_spectral image is discussed.The successful application of RBPNN to a land cover classification illustrates the simple computation and high accuracy of the new neural network and the flexibility and practicality of this new approach.展开更多
Mountains were among the most important sacred geographical spaces in early medieval China thanks to the widespread building of Buddhist temples and Taoist abbeys in the mountains. They were sanctified both in imagina...Mountains were among the most important sacred geographical spaces in early medieval China thanks to the widespread building of Buddhist temples and Taoist abbeys in the mountains. They were sanctified both in imagination and in reality in the early medieval era. Accordingly, spatial studies have been conducted along these two dimensions. The former dimension deals with the numerous abodes of sages and immortals, while the latter examines Buddhist and Taoist monks and the stone chambers and temples or abbeys in which they practiced self-cultivation. In the case of Mount Tiantai, an imagined system of immortals＇ mountain abodes had emerged as early as in the middle of the Eastern Jin dynasty. A specific immortal was Wang Ziqiao, the Perfected of Mount Tongbai, who had authority over the Jinting palace and administration. The imagining of immortals＇ abodes not only helped the Taoists determine the locations of Taoist abbeys, but also inspired monks who hoped to practice self-cultivation with the help of the powers of mountain gods and immortals. In a sense, this was a process in which knowledge of the immortals shaped the landscape of Buddhist temples and Taoist abbeys.展开更多
文摘Objective: To evaluate the serious response during tilt-table test (TTT) and its prophylactic management. Method: Seventy-six elderly patients were tested at a tilt angle of 70 degrees for a maximum of 45 min and then subjected to isoprotere- nol-provocative tilt testing. ECG and blood pressure were monitored during the test and patients were kept at normal saline con- dition through a peripheral intravenous duct. Results: Fifty-one of 76 patients were defined as positive including 23 having serious response; 6 of the 23 patients had arteriosclerosis involving internal carotid arteries and 7 cases had bradycardia, two of which were associated with II°-I A-V block and the others with chronic atrial fibrillation. The serious response consisted of cardiac arrest for more than 5 s (6 cases), or serious bradycardia for more than 1 min (7 cases) or serious hypotension for more than 1 min (10 cases). Those with serious response were managed by returning to supine position, thus driving up legs and intravenous atropine, CPR (2 cases with cardiac arrest) and needing oxygen supplementation (11 cases). Only 2 hypotension patients recovered gradually by 10 min after emergency management, while others recovered rapidly with no complications. Conclusion: Although non-invasive, TTT may result in serious response, especially in elderly. Therefore proper patient selection, control of isoproterenol infusion and close observation of vital signs are decisive for a safe consequence.
文摘This paper presents a new kind of back propagation neural network (BPNN) based on rough sets,called rough back propagation neural network (RBPNN).The architecture and training method of RBPNN are presented and the survey and analysis of RBPNN for the classification of remote sensing multi_spectral image is discussed.The successful application of RBPNN to a land cover classification illustrates the simple computation and high accuracy of the new neural network and the flexibility and practicality of this new approach.
文摘Mountains were among the most important sacred geographical spaces in early medieval China thanks to the widespread building of Buddhist temples and Taoist abbeys in the mountains. They were sanctified both in imagination and in reality in the early medieval era. Accordingly, spatial studies have been conducted along these two dimensions. The former dimension deals with the numerous abodes of sages and immortals, while the latter examines Buddhist and Taoist monks and the stone chambers and temples or abbeys in which they practiced self-cultivation. In the case of Mount Tiantai, an imagined system of immortals＇ mountain abodes had emerged as early as in the middle of the Eastern Jin dynasty. A specific immortal was Wang Ziqiao, the Perfected of Mount Tongbai, who had authority over the Jinting palace and administration. The imagining of immortals＇ abodes not only helped the Taoists determine the locations of Taoist abbeys, but also inspired monks who hoped to practice self-cultivation with the help of the powers of mountain gods and immortals. In a sense, this was a process in which knowledge of the immortals shaped the landscape of Buddhist temples and Taoist abbeys.
