[Objective] The satisfaction degree of agricultural water demand was analyzed to provide climate basis for the agricultural structure adjustment and good harvest.[Method] By using integral humidity index and climatic ...[Objective] The satisfaction degree of agricultural water demand was analyzed to provide climate basis for the agricultural structure adjustment and good harvest.[Method] By using integral humidity index and climatic tendency rate,the satisfaction degree of water demand of crops and its trend variation were studied.[Result] The precipitation in the growing season of crops showed decrease trend in western Liaoning,and the climatic tendency rate was-8.660--18.560 mm/10 a,with the precipitation decrease of 43-93 mm in recent 50 years.The satisfaction degree of agricultural water demand was up to 72%-88% in average,and over 80% satisfaction degree accounted for 30%-60%,while water shortage probability reached 68%-90%.The satisfaction degree of Chaoyang,Lingyuan and Beipiao was the lowest,while that of Jianchang and Jiangping was relative higher.The satisfaction degree of gross agriculture water demand went down with the time,and climate tendency rate was up to-2.490%--3.863%/10 a,with the decrease of 12%-19% in recent 50 years.[Conclusion] With the reduction of precipitation,the satisfaction degree of water demand of crops went down,and the climate in western Liaoning became more and more dry.展开更多
Through the field investigation in Xionger Mountain,it was found that the scenic area is rich in tourism resources.However,the development of tourism is lagging behind.By the method of random sampling,a survey for vis...Through the field investigation in Xionger Mountain,it was found that the scenic area is rich in tourism resources.However,the development of tourism is lagging behind.By the method of random sampling,a survey for visitors was conducted.A total of 100 questionnaires were issued,100 of which were valid.With the help of TSI evaluating model,tourists' satisfaction degree was calculated accurately.The results showed that ratio of tourism performance to price in Xionger Mountain wasn't high,of which tourists generally expressed dissatisfaction;that the overall environment was quite good,of which tourists showed higher satisfaction degree;that some tourists' expectations to this scenic area were not high;that revisit willing was comparatively high;that there was a certain gap compared with other scenic spot.Tourists' satisfaction degree on Xionger Mountain is 55.89% through calculating TSI index.Finally,aiming at the existent problems,some countermeasures for improving the tourists' satisfaction degree on Xionger Mountain were put forward from the aspects of tour value,environmental perception,marketing philosophy and modes.展开更多
Starting from the utilization and protection of local knowledge, with the performance prism as the framework, the evaluation index system of tourist satisfaction degree was established. The weight was determined by us...Starting from the utilization and protection of local knowledge, with the performance prism as the framework, the evaluation index system of tourist satisfaction degree was established. The weight was determined by using AHP method. Finally, the investigating result was judged with fuzzy comprehensive evaluation method, the evaluation model of tourist satisfaction degree in western tourist area was built, and the case study was carried out. With Lijiang in Yunnan Province as example, according to AHP method, five dimensions weight of the performance prism, various KPI weight and consistency were obtained, fuzzy evaluation on tourist satisfaction degree was conducted. The results showed that the overall was satisfactory, but there were still some problems. Aiming at the utilization and protection of local knowledge, some corresponding countermeasures were put forward which will benefit for further development of tourism in Lijiang of Yunnan Province.展开更多
By using principal component analysis,this paper had modified and put forward a theoretical model of evaluation on tourist satisfaction degree with tourist perception quality and tourist satisfaction degree as structu...By using principal component analysis,this paper had modified and put forward a theoretical model of evaluation on tourist satisfaction degree with tourist perception quality and tourist satisfaction degree as structure variables and with thirty indexes like image of tourist area,tourists' expectation,infrastructure in tourist area,landscape features and ticket price as observed variables,based on random questionnaire survey of tourists of Zhenyuan ancient city in Guizhou Province and the existing evaluation models of tourist satisfaction degree at home and abroad.The survey result showed that tourist satisfaction degree was not high,that tourists were dissatisfied with observing facilities,transportation,accommodation and landscape features,and that the attraction power of tourist area was weak.The comprehensive tourist satisfaction degree of Zhenyuan ancient city was 77.653.Therefore,the government should enhance reconstruction of infrastructure and construction of landscape features,and improve tourist service quality level,so as to realize sustainable development of tourist economy in Zhenyuan ancient city.展开更多
Tourist's satisfaction degree is one of the important indexes to evaluate the service quality of scenic spot.Taking Xi'an Dongda Hot Spring Resort Area for an example,with the expectation difference theory and...Tourist's satisfaction degree is one of the important indexes to evaluate the service quality of scenic spot.Taking Xi'an Dongda Hot Spring Resort Area for an example,with the expectation difference theory and customers' satisfaction evaluation model as the theoretical basis of the research,the overall satisfaction degree of tourists to hot spring resort area,and the actual sensation accomplishments and the expectation difference of each service index were analyzed by using regression analysis and paired sample t test method.The results showed:① The overall satisfaction degree of tourists to the resort area was higher.There were remarkable correlation among three variables:the sensation value,the overall satisfaction degree,and the tourist's loyalty degree;② Generally,the sensation actual accomplishments of 15 service appraisal factors were higher than the expectation value.According to the characteristics,these 15 service appraisal factors were divided into 5 groups.Some unsatisfactory aspects were found out,and the corrective measures were put forward.展开更多
In view of the present situation of measuring a green residence just by energy saving and environmental protection,we propose that we should build the rural residence more from the farmer's view and set up an eval...In view of the present situation of measuring a green residence just by energy saving and environmental protection,we propose that we should build the rural residence more from the farmer's view and set up an evaluation system based on farmers satisfaction.A total of 16 factors affecting the farmers' satisfaction degree of green energy saving rebuilding of rural residence are selected.Questionnaire survey on 110 peasant households is carried out under different situations in Guanzhong region in Shaanxi Province,so as to obtain the importance score of evaluation index.During constructing the evaluation system for farmers' satisfaction degree,Factor Analysis Method is used to classify the related influencing factors.Subjective analysis of Analytic Hierarchy Process and the objective analysis of Factor Analysis Method are combined together to determine the weights of factors at different grades.Then,the final evaluation model is obtained,which provides guidance for the further green energy saving rebuilding of rural residence in China.展开更多
A cognitive radio(CR) network with energy harvesting(EH) is considered to improve both spectrum efficiency and energy efficiency. A hidden Markov model(HMM) is used to characterize the imperfect spectrum sensing...A cognitive radio(CR) network with energy harvesting(EH) is considered to improve both spectrum efficiency and energy efficiency. A hidden Markov model(HMM) is used to characterize the imperfect spectrum sensing process. In order to maximize the whole satisfaction degree(WSD) of the cognitive radio network, a tradeoff between the average throughput of the secondary user(SU) and the interference to the primary user(PU) is analyzed. We formulate the satisfaction degree optimization problem as a mixed integer nonlinear programming(MINLP) problem. The satisfaction degree optimization problem is solved by using differential evolution(DE) algorithm. The proposed optimization problem allows the network to adaptively achieve the optimal solution based on its required quality of service(Qos). Numerical results are given to verify our analysis.展开更多
This paper presents a novel evaluation model of the customer satisfaction degree (CSD) in logistics based on support vector machine (SVM). Firstly, the relation between the suppliers and the customers is analyzed....This paper presents a novel evaluation model of the customer satisfaction degree (CSD) in logistics based on support vector machine (SVM). Firstly, the relation between the suppliers and the customers is analyzed. Seondly, the evaluation index system and fuzzy quantitative methods are provided. Thirdly, the CSD evaluation system including eight indexes and three ranks based on one-against-one mode of SVM is built, last simulation experint is presented to illustrate the theoretical results.展开更多
Greenway construction is one of the important measures for Chengdu to build a “beautiful and livable park city”, and is also a framework system for building a park city. According to the construction demand of the p...Greenway construction is one of the important measures for Chengdu to build a “beautiful and livable park city”, and is also a framework system for building a park city. According to the construction demand of the park city, a Tianfu greenway system with the theme of “one axis, two mountains, three rings and seven belts” will be formed throughout Chengdu. Jinjiang 198 Greenway is the first large-scale greenway in the main urban area of Chengdu. In view of the use of Jinjiang 198 Greenway in Chengdu, its use characteristics and user satisfaction degree are studied. The general situation of people's use of greenway is obtained from the characteristics of users themselves and its use conditions. According to the statistics of user satisfaction degree through field survey and questionnaire survey, it is known that the overall satisfaction degree of users on the greenway is good. Through factor analysis, the main factors affecting user satisfaction degree are obtained, which are in turn supporting facilities, service facilities, activity sites,green environment and accessibility. Finally, based on the above analysis and summary, suggestions and opinions are put forward for the future construction and development of Tianfu greenway system.展开更多
This paper compares the satisfaction of users of residential buildings produced by two construction processes considered as industrialized:“prefabricated masonry panels”and“reinforced concrete walls molded on site...This paper compares the satisfaction of users of residential buildings produced by two construction processes considered as industrialized:“prefabricated masonry panels”and“reinforced concrete walls molded on site”and compared with“conventional process”(structural masonry of concrete blocks).The premise of the study was to diagnose the level of acceptance of the buildings considered industrialized by the Brazilian population,aiming to assess whether the preference for the systems considered“conventional”and the rejection of the“industrialized”is decreasing in Brazil.This article concerns the results obtained in the second phase of the research,which was carried out after five years of the first phase.So,if the buildings were considered new in the first phase,this second research was carried out after the depreciation due to the action of time.To quantify the“degree of satisfaction”the same checklist of the first survey was applied,in the same neighborhood and the sum attributed to each answer made by residents was applied and,as a result,it was possible to ascertain the oscillations in it and to confirm the satisfactory acceptance of industrialized construction systems and a tendency to reduce rejection by the population in relation to the innovative construction systems.展开更多
Background:To study the application of management tools such as Plan-Do-Check-Action(PDCA)cycle and fishbone diagram in optimizing surgical procedures to improve the satisfaction of doctor-nurse-patient.Methods:The fu...Background:To study the application of management tools such as Plan-Do-Check-Action(PDCA)cycle and fishbone diagram in optimizing surgical procedures to improve the satisfaction of doctor-nurse-patient.Methods:The fundus surgery nursing team of our hospital began to implement the PDCA cycle management mode to optimize the surgical procedure from July 2017,set up a project activity improvement team,unified the surgical labeling processing plan,and made the fundus surgery procedure,and established the preoperative health education for surgical patients,and standardized the training content of post-rotating doctors and interns.Results:The satisfaction degree to surgical procedure after implementation of doctors and nurses was higher than that before implementation.Conclusions:Using PDCA cycle and fishbone diagram analysis tools to manage the surgical procedure optimization can better integrate doctor-nurse medical care,improve the efficiency and accuracy of the surgical procedure delivery and operation,and optimize the satisfaction of the three parties of doctor-nurse-patient.展开更多
In order to construct objective relatively mapping relationship model between customer requirements and product technical characteristics, a novel approach based on customer satisfactions information digging from case...In order to construct objective relatively mapping relationship model between customer requirements and product technical characteristics, a novel approach based on customer satisfactions information digging from case products and satisfaction information of expert technical characteristics was put forward in this paper. Technical characteristics evaluation values were expressed by rough number, and technical characteristics target sequence was determined on the basis of efficiency, cost type and middle type in this method. Use each calculated satisfactions of customers and technical characteristics as input and output elements to construct BP network model. And we use MATLAB software to simulate this BP network model based on the case of electric bicycles.展开更多
From the perspective of information resource sharing, the authors investigated the ratio and degree of users' satisfaction with resource sharing among college libraries, public libraries and research libraries in ...From the perspective of information resource sharing, the authors investigated the ratio and degree of users' satisfaction with resource sharing among college libraries, public libraries and research libraries in Nanjing city. Based on the analysis and discussion about the findings, the authors summarized the library resource sharing system in satisfying users' information requirements, including its pros and cons. At last, further considerations have been provided on how to improve library resource sharing system in the region.展开更多
目的:探讨超声引导下髂筋膜间隙阻滞联合腰硬联合麻醉对老年髋关节手术患者的影响。方法:选取2021年1月—2023年4月于南京市浦口区中医院接受髋关节手术的102例老年患者作为研究对象,患者接受髋关节置换或复位内固定术治疗,根据随机数...目的:探讨超声引导下髂筋膜间隙阻滞联合腰硬联合麻醉对老年髋关节手术患者的影响。方法:选取2021年1月—2023年4月于南京市浦口区中医院接受髋关节手术的102例老年患者作为研究对象,患者接受髋关节置换或复位内固定术治疗,根据随机数表法将患者分为对照组和观察组,各51例。对照组行腰硬联合麻醉,观察组在腰硬联合麻醉基础上行超声引导下髂筋膜间隙阻滞麻醉。对比两组平均动脉压、心率、术后镇痛用药情况[术后舒芬太尼用量、经静脉患者自控镇痛(PCIA)开始按压时间及按压次数]、应激反应指标[超氧化物歧化酶(SOD)、晚期氧化蛋白产物(AOPP)、谷胱甘肽过氧化物酶(GSH-Px)、丙二醛(MDA)]、视觉模拟评分法(VAS)评分、简易智力状态检查量表(MMSE)、中枢神经特异蛋白(S100-β)、β-淀粉样蛋白1~40(Aβ_(1~40))水平、不良反应及满意度。结果:两组麻醉前、手术开始时及手术结束时平均动脉压和心率比较,差异无统计学意义(P>0.05);观察组蛛网膜下腔阻滞体位摆放时平均动脉压和心率低于对照组,差异有统计学意义(P<0.05)。观察组术后舒芬太尼用量少于对照组,PCIA开始按压时间晚于对照组,PCIA按压次数少于对照组,差异有统计学意义(P<0.05)。观察组术后5 d SOD、GSH-Px水平高于对照组,AOPP、MDA水平低于对照组,差异有统计学意义(P<0.05)。观察组术后12 h、1 d、3 d VAS评分低于对照组,差异有统计学意义(P<0.05)。观察组术后6 h、1 d、2 d MMSE评分高于对照组,差异有统计学意义(P<0.05)。观察组术后6 h、1 d S100-β、Aβ_(1~40)水平均低于对照组,差异有统计学意义(P<0.05)。观察组不良反应发生率低于对照组,总满意度高于对照组,差异有统计学意义(P<0.05)。结论:老年髋关节手术患者接受超声引导下髂筋膜间隙阻滞联合腰硬联合麻醉方法,可改善麻醉操作期间平均动脉压和心率指标水平,减少术后镇痛药物使用剂量,减轻机体应激反应,降低术后疼痛感,改善术后认知功能,降低并发症发生率,提高满意率。展开更多
文摘[Objective] The satisfaction degree of agricultural water demand was analyzed to provide climate basis for the agricultural structure adjustment and good harvest.[Method] By using integral humidity index and climatic tendency rate,the satisfaction degree of water demand of crops and its trend variation were studied.[Result] The precipitation in the growing season of crops showed decrease trend in western Liaoning,and the climatic tendency rate was-8.660--18.560 mm/10 a,with the precipitation decrease of 43-93 mm in recent 50 years.The satisfaction degree of agricultural water demand was up to 72%-88% in average,and over 80% satisfaction degree accounted for 30%-60%,while water shortage probability reached 68%-90%.The satisfaction degree of Chaoyang,Lingyuan and Beipiao was the lowest,while that of Jianchang and Jiangping was relative higher.The satisfaction degree of gross agriculture water demand went down with the time,and climate tendency rate was up to-2.490%--3.863%/10 a,with the decrease of 12%-19% in recent 50 years.[Conclusion] With the reduction of precipitation,the satisfaction degree of water demand of crops went down,and the climate in western Liaoning became more and more dry.
文摘Through the field investigation in Xionger Mountain,it was found that the scenic area is rich in tourism resources.However,the development of tourism is lagging behind.By the method of random sampling,a survey for visitors was conducted.A total of 100 questionnaires were issued,100 of which were valid.With the help of TSI evaluating model,tourists' satisfaction degree was calculated accurately.The results showed that ratio of tourism performance to price in Xionger Mountain wasn't high,of which tourists generally expressed dissatisfaction;that the overall environment was quite good,of which tourists showed higher satisfaction degree;that some tourists' expectations to this scenic area were not high;that revisit willing was comparatively high;that there was a certain gap compared with other scenic spot.Tourists' satisfaction degree on Xionger Mountain is 55.89% through calculating TSI index.Finally,aiming at the existent problems,some countermeasures for improving the tourists' satisfaction degree on Xionger Mountain were put forward from the aspects of tour value,environmental perception,marketing philosophy and modes.
基金Supported by 2008 National Social Science Fund (08BMZ042)~~
文摘Starting from the utilization and protection of local knowledge, with the performance prism as the framework, the evaluation index system of tourist satisfaction degree was established. The weight was determined by using AHP method. Finally, the investigating result was judged with fuzzy comprehensive evaluation method, the evaluation model of tourist satisfaction degree in western tourist area was built, and the case study was carried out. With Lijiang in Yunnan Province as example, according to AHP method, five dimensions weight of the performance prism, various KPI weight and consistency were obtained, fuzzy evaluation on tourist satisfaction degree was conducted. The results showed that the overall was satisfactory, but there were still some problems. Aiming at the utilization and protection of local knowledge, some corresponding countermeasures were put forward which will benefit for further development of tourism in Lijiang of Yunnan Province.
基金Supported by Planning Project of Kaili Institute(Z1009)and Youth Foundation of Special Scientific Research Project of Key Discipline of Tourist Management of Kaili Institute(lgz200904)~~
文摘By using principal component analysis,this paper had modified and put forward a theoretical model of evaluation on tourist satisfaction degree with tourist perception quality and tourist satisfaction degree as structure variables and with thirty indexes like image of tourist area,tourists' expectation,infrastructure in tourist area,landscape features and ticket price as observed variables,based on random questionnaire survey of tourists of Zhenyuan ancient city in Guizhou Province and the existing evaluation models of tourist satisfaction degree at home and abroad.The survey result showed that tourist satisfaction degree was not high,that tourists were dissatisfied with observing facilities,transportation,accommodation and landscape features,and that the attraction power of tourist area was weak.The comprehensive tourist satisfaction degree of Zhenyuan ancient city was 77.653.Therefore,the government should enhance reconstruction of infrastructure and construction of landscape features,and improve tourist service quality level,so as to realize sustainable development of tourist economy in Zhenyuan ancient city.
文摘Tourist's satisfaction degree is one of the important indexes to evaluate the service quality of scenic spot.Taking Xi'an Dongda Hot Spring Resort Area for an example,with the expectation difference theory and customers' satisfaction evaluation model as the theoretical basis of the research,the overall satisfaction degree of tourists to hot spring resort area,and the actual sensation accomplishments and the expectation difference of each service index were analyzed by using regression analysis and paired sample t test method.The results showed:① The overall satisfaction degree of tourists to the resort area was higher.There were remarkable correlation among three variables:the sensation value,the overall satisfaction degree,and the tourist's loyalty degree;② Generally,the sensation actual accomplishments of 15 service appraisal factors were higher than the expectation value.According to the characteristics,these 15 service appraisal factors were divided into 5 groups.Some unsatisfactory aspects were found out,and the corrective measures were put forward.
基金Supported by the Key Scientific and Technological Innovation Special Project of Shaanxi"13115"(2009ZDKG-66)the Shaanxi Provincial Project of Special Foundation of Key Disciplines
文摘In view of the present situation of measuring a green residence just by energy saving and environmental protection,we propose that we should build the rural residence more from the farmer's view and set up an evaluation system based on farmers satisfaction.A total of 16 factors affecting the farmers' satisfaction degree of green energy saving rebuilding of rural residence are selected.Questionnaire survey on 110 peasant households is carried out under different situations in Guanzhong region in Shaanxi Province,so as to obtain the importance score of evaluation index.During constructing the evaluation system for farmers' satisfaction degree,Factor Analysis Method is used to classify the related influencing factors.Subjective analysis of Analytic Hierarchy Process and the objective analysis of Factor Analysis Method are combined together to determine the weights of factors at different grades.Then,the final evaluation model is obtained,which provides guidance for the further green energy saving rebuilding of rural residence in China.
基金Project supported by the National Natural Science Foundation of China(Grant No.61301179)the Doctorial Programs Foundation of the Ministry of Education of China(Grant No.20110203110011)the 111 Project(Grant No.B08038)
文摘A cognitive radio(CR) network with energy harvesting(EH) is considered to improve both spectrum efficiency and energy efficiency. A hidden Markov model(HMM) is used to characterize the imperfect spectrum sensing process. In order to maximize the whole satisfaction degree(WSD) of the cognitive radio network, a tradeoff between the average throughput of the secondary user(SU) and the interference to the primary user(PU) is analyzed. We formulate the satisfaction degree optimization problem as a mixed integer nonlinear programming(MINLP) problem. The satisfaction degree optimization problem is solved by using differential evolution(DE) algorithm. The proposed optimization problem allows the network to adaptively achieve the optimal solution based on its required quality of service(Qos). Numerical results are given to verify our analysis.
文摘This paper presents a novel evaluation model of the customer satisfaction degree (CSD) in logistics based on support vector machine (SVM). Firstly, the relation between the suppliers and the customers is analyzed. Seondly, the evaluation index system and fuzzy quantitative methods are provided. Thirdly, the CSD evaluation system including eight indexes and three ranks based on one-against-one mode of SVM is built, last simulation experint is presented to illustrate the theoretical results.
文摘Greenway construction is one of the important measures for Chengdu to build a “beautiful and livable park city”, and is also a framework system for building a park city. According to the construction demand of the park city, a Tianfu greenway system with the theme of “one axis, two mountains, three rings and seven belts” will be formed throughout Chengdu. Jinjiang 198 Greenway is the first large-scale greenway in the main urban area of Chengdu. In view of the use of Jinjiang 198 Greenway in Chengdu, its use characteristics and user satisfaction degree are studied. The general situation of people's use of greenway is obtained from the characteristics of users themselves and its use conditions. According to the statistics of user satisfaction degree through field survey and questionnaire survey, it is known that the overall satisfaction degree of users on the greenway is good. Through factor analysis, the main factors affecting user satisfaction degree are obtained, which are in turn supporting facilities, service facilities, activity sites,green environment and accessibility. Finally, based on the above analysis and summary, suggestions and opinions are put forward for the future construction and development of Tianfu greenway system.
文摘This paper compares the satisfaction of users of residential buildings produced by two construction processes considered as industrialized:“prefabricated masonry panels”and“reinforced concrete walls molded on site”and compared with“conventional process”(structural masonry of concrete blocks).The premise of the study was to diagnose the level of acceptance of the buildings considered industrialized by the Brazilian population,aiming to assess whether the preference for the systems considered“conventional”and the rejection of the“industrialized”is decreasing in Brazil.This article concerns the results obtained in the second phase of the research,which was carried out after five years of the first phase.So,if the buildings were considered new in the first phase,this second research was carried out after the depreciation due to the action of time.To quantify the“degree of satisfaction”the same checklist of the first survey was applied,in the same neighborhood and the sum attributed to each answer made by residents was applied and,as a result,it was possible to ascertain the oscillations in it and to confirm the satisfactory acceptance of industrialized construction systems and a tendency to reduce rejection by the population in relation to the innovative construction systems.
文摘Background:To study the application of management tools such as Plan-Do-Check-Action(PDCA)cycle and fishbone diagram in optimizing surgical procedures to improve the satisfaction of doctor-nurse-patient.Methods:The fundus surgery nursing team of our hospital began to implement the PDCA cycle management mode to optimize the surgical procedure from July 2017,set up a project activity improvement team,unified the surgical labeling processing plan,and made the fundus surgery procedure,and established the preoperative health education for surgical patients,and standardized the training content of post-rotating doctors and interns.Results:The satisfaction degree to surgical procedure after implementation of doctors and nurses was higher than that before implementation.Conclusions:Using PDCA cycle and fishbone diagram analysis tools to manage the surgical procedure optimization can better integrate doctor-nurse medical care,improve the efficiency and accuracy of the surgical procedure delivery and operation,and optimize the satisfaction of the three parties of doctor-nurse-patient.
基金Supported by Natural Science Basic Research Plan in Shaanxi Province of China (SJ08E206)
文摘In order to construct objective relatively mapping relationship model between customer requirements and product technical characteristics, a novel approach based on customer satisfactions information digging from case products and satisfaction information of expert technical characteristics was put forward in this paper. Technical characteristics evaluation values were expressed by rough number, and technical characteristics target sequence was determined on the basis of efficiency, cost type and middle type in this method. Use each calculated satisfactions of customers and technical characteristics as input and output elements to construct BP network model. And we use MATLAB software to simulate this BP network model based on the case of electric bicycles.
基金supported by the National Social Science Foundation of China(Grant No.06BTQ017)
文摘From the perspective of information resource sharing, the authors investigated the ratio and degree of users' satisfaction with resource sharing among college libraries, public libraries and research libraries in Nanjing city. Based on the analysis and discussion about the findings, the authors summarized the library resource sharing system in satisfying users' information requirements, including its pros and cons. At last, further considerations have been provided on how to improve library resource sharing system in the region.
文摘目的:探讨超声引导下髂筋膜间隙阻滞联合腰硬联合麻醉对老年髋关节手术患者的影响。方法:选取2021年1月—2023年4月于南京市浦口区中医院接受髋关节手术的102例老年患者作为研究对象,患者接受髋关节置换或复位内固定术治疗,根据随机数表法将患者分为对照组和观察组,各51例。对照组行腰硬联合麻醉,观察组在腰硬联合麻醉基础上行超声引导下髂筋膜间隙阻滞麻醉。对比两组平均动脉压、心率、术后镇痛用药情况[术后舒芬太尼用量、经静脉患者自控镇痛(PCIA)开始按压时间及按压次数]、应激反应指标[超氧化物歧化酶(SOD)、晚期氧化蛋白产物(AOPP)、谷胱甘肽过氧化物酶(GSH-Px)、丙二醛(MDA)]、视觉模拟评分法(VAS)评分、简易智力状态检查量表(MMSE)、中枢神经特异蛋白(S100-β)、β-淀粉样蛋白1~40(Aβ_(1~40))水平、不良反应及满意度。结果:两组麻醉前、手术开始时及手术结束时平均动脉压和心率比较,差异无统计学意义(P>0.05);观察组蛛网膜下腔阻滞体位摆放时平均动脉压和心率低于对照组,差异有统计学意义(P<0.05)。观察组术后舒芬太尼用量少于对照组,PCIA开始按压时间晚于对照组,PCIA按压次数少于对照组,差异有统计学意义(P<0.05)。观察组术后5 d SOD、GSH-Px水平高于对照组,AOPP、MDA水平低于对照组,差异有统计学意义(P<0.05)。观察组术后12 h、1 d、3 d VAS评分低于对照组,差异有统计学意义(P<0.05)。观察组术后6 h、1 d、2 d MMSE评分高于对照组,差异有统计学意义(P<0.05)。观察组术后6 h、1 d S100-β、Aβ_(1~40)水平均低于对照组,差异有统计学意义(P<0.05)。观察组不良反应发生率低于对照组,总满意度高于对照组,差异有统计学意义(P<0.05)。结论:老年髋关节手术患者接受超声引导下髂筋膜间隙阻滞联合腰硬联合麻醉方法,可改善麻醉操作期间平均动脉压和心率指标水平,减少术后镇痛药物使用剂量,减轻机体应激反应,降低术后疼痛感,改善术后认知功能,降低并发症发生率,提高满意率。