Objective: To explore the effect of evidence-based quality control circle (QCC) in improving the implementation rate of airway management measures in adult critically ill patients. Methods: Based on the Joanna Briggs ...Objective: To explore the effect of evidence-based quality control circle (QCC) in improving the implementation rate of airway management measures in adult critically ill patients. Methods: Based on the Joanna Briggs Institute (JBI) evidence-based health care model, the best evidence of airway management in adult critically ill patients was obtained and applied to the clinic. Results: The total implementation rate of airway management measures in adult critically ill patients increased from 23.62% before the implementation of quality control circle to 88.82%, and the pulmonary infection rate in critically ill patients decreased from 42.31% to 21.74%, with statistical significance between the two groups (P 0.05). Conclusion: Evidence-based quality control circle activities can standardize the practice standards of airway management in critically ill patients, reduce the occurrence of patients’ airway related complications, and improve clinical outcomes.展开更多
Polyesters consisting of substituted aromatic type Schiff base mesogenic unit andpolymethylene spacers were synthesized and their thermal transitions and liquid crystallineproperties were studied. The liquid crystalli...Polyesters consisting of substituted aromatic type Schiff base mesogenic unit andpolymethylene spacers were synthesized and their thermal transitions and liquid crystallineproperties were studied. The liquid crystalline behaviour has been characterized by differentialscanning calorimetry (DSC) and optical polarizing microscopy. Structural broadening bysubstitution of methoxy group in 2, 2' positions of the mesogenic core produce polymers withlower transition temperatures. Polymers synthesized from ortho and meta substituted phenylenediamine did not form a liquid crystal phase.展开更多
A novel fluorene-based conjugated copolymer containing cyclobutenedione unit was synthesized by Suzuki reaction. Its structure and properties were characterized by FTIR, 1HNMR, elemental analysis, PL spectroscopy, DSC...A novel fluorene-based conjugated copolymer containing cyclobutenedione unit was synthesized by Suzuki reaction. Its structure and properties were characterized by FTIR, 1HNMR, elemental analysis, PL spectroscopy, DSC, TGA and cyclic voltammetry. The resulting polymer shows strong yellow PL emission (561 nm) and good solubility in polar aprotic solvents, i.e. THF, DMF, DMAC, DMSO, etc. DSC and TGA studies reveal that the novel polymer possesses excellent thermal stability with high glass transition temperature of 127℃ and onset decomposition temperature of 411℃. Cyclic voltammetry measurement demonstrated that the polymer has both hole and electron-transporting property.展开更多
Objective:To classify 21 new isolates of Trypanosoma cruai(T.cruzi) according to the Discrete Typing Unit(DTU) which they belong to,as well as tune up a new pair of primers designed to detect the parasite in biologica...Objective:To classify 21 new isolates of Trypanosoma cruai(T.cruzi) according to the Discrete Typing Unit(DTU) which they belong to,as well as tune up a new pair of primers designed to detect the parasite in biological samples.Methods:Strains were isolated,DNA extracted,and classified by using three Polymerase Chain Reactions(PCR).Subsequently this DNA was used along with other isolates of various biological samples,for a new PCR using primers designed.Finally,the amplified fragments were sequenced.Results:It was observed the predominance of DTU i in Colombia,as well as the specificity of our primers for detection of T.cruzi,while no band was obtained when other species were used.Conclusions:This work reveals the genetic variability of 21 new isolates of T.cruzi in Colombia.Our primers confirmed their specificity for detecting the presence of T.cruzi.展开更多
Unit commitment (UC) is to determine the optimal unit status and generation level during each time interval of the scheduled period. The purpose of UC is to minimize the total generation cost while satisfying system d...Unit commitment (UC) is to determine the optimal unit status and generation level during each time interval of the scheduled period. The purpose of UC is to minimize the total generation cost while satisfying system demand, reserve requirements, and unit constraints. Among the UC constraints, an adequate provision of reserve is important to ensure the security of power system and the fast-response reserve is essential to bring system frequency back to acceptable level following the loss of an online unit within a few seconds. In this paper, the authors present and solve a UC problem including the frequency-based reserve constraints to determine the optimal FRR requirements and unit MW schedules. The UC problem is solved by using Lagrangian Relaxation-based approach and compared with the actual system schedules. It is observed that favorable reserve and unit MW schedules are obtained by the proposed method while the system security is maintained.展开更多
In this paper, 2201 and 2212 phases as the corresponding precursor of forming 2212 and 2223 phases are discussed,and the constructive process of unit cell of 2201 phase is ascertained by XRD and chemical kinetics me...In this paper, 2201 and 2212 phases as the corresponding precursor of forming 2212 and 2223 phases are discussed,and the constructive process of unit cell of 2201 phase is ascertained by XRD and chemical kinetics method. Subsequently, the process of 221展开更多
The distribution of American industries has been unbalanced and most of the early industrial regions were centered in northeastern America.The northeastern traditional industrial base once was called"manufacturin...The distribution of American industries has been unbalanced and most of the early industrial regions were centered in northeastern America.The northeastern traditional industrial base once was called"manufacturing belt".Since the 1950s,old industrial bases in the United States have been under recession.The northeastern region was then even called"rust belt".Some issues and measures of policy were set up by the government to adjust and restructure the old industrial bases,and some are useful experience and inspirations for our country,such as setting up special branches and organizations,establishing and implementing strategic planning for the adjustment and restructure of old industrial bases,adjusting the industrial branch and system,emphasizing on environment control and preservation and so on was achieved.Learning the successful experience from America,effective countermeasures and steps must be taken to accelerate the revival of the old industrial base in Northeastern China.展开更多
目的探讨基于循证证据的标准化管理对重症加强护理病房(intensive care units,ICU)心电监护患者误警报率及护士警报疲劳的影响。方法随机选取2021年7月—2023年6月月福建医科大学附属泉州市第一医院中临床100台ICU心电监护仪器。2021年...目的探讨基于循证证据的标准化管理对重症加强护理病房(intensive care units,ICU)心电监护患者误警报率及护士警报疲劳的影响。方法随机选取2021年7月—2023年6月月福建医科大学附属泉州市第一医院中临床100台ICU心电监护仪器。2021年7月—2022年12月实施常规管理期间的临床50台ICU心电监护仪器纳为常规管理组,将2023年1—6月实施基于循证证据的标准化管理期间的临床50台ICU心电监护仪器纳为循证管理组。比较2组心电监护患者误警报率、报警能力处理评分和护士警报疲劳。结果循证管理组的心电监护仪器误警报率为16.13%,常规管理组为26.15%,差异有统计学意义(P<0.05)。循证管理组中护士报警能力处理评分较常规管理组高,差异有统计学意义(P<0.05)。循证管理组患者的ICU护士报警疲劳量表评分为(15.32±3.28)分,常规管理组为(21.56±4.64)分,差异有统计学意义(P<0.05)。结论基于循证证据的标准化管理可以降低ICU心电监护患者误警报率,提升护士处理能力,降低护士报警疲劳度。展开更多
目的全面检索并汇总ICU成人气管插管患者围拔管期管理的最佳证据总结,为临床医护人员提供参考。方法系统检索UpToDate、BMJ Best Practice、英国国家卫生与临床优化研究所网站、苏格兰院际指南网、国际指南协作网、美国国立指南库、加...目的全面检索并汇总ICU成人气管插管患者围拔管期管理的最佳证据总结,为临床医护人员提供参考。方法系统检索UpToDate、BMJ Best Practice、英国国家卫生与临床优化研究所网站、苏格兰院际指南网、国际指南协作网、美国国立指南库、加拿大安大略注册护士协会网站、美国重症医学会网站、欧洲重症医学会网站、医脉通指南网、Cochrane Library、PubMed、Embase、CINAHL、中国生物医学文献数据库、中国知网、维普网、万方数据库中有关ICU成人气管插管患者围拔管期的临床决策、指南、证据总结、系统评价及专家共识等,检索时限为建库至2023年3月,由4名研究者对符合纳入标准的文献进行质量评价及证据提取。结果最终纳入16篇文献,其中临床决策5篇、指南10篇、系统评价1篇。包括拔管前(拔管前评估、制订计划、准备度测试)、拔管中、拔管后(密切监测、特殊人群、重新进食)3个主题、6个副主题、28条最佳证据。结论该研究汇总的最佳证据可为医护人员高效管理拔管失败高危人群及规范围拔管期护理提供参考,临床实践中需结合具体情况,针对性地选择应用证据,以改善患者预后,提升护理质量。展开更多
文摘Objective: To explore the effect of evidence-based quality control circle (QCC) in improving the implementation rate of airway management measures in adult critically ill patients. Methods: Based on the Joanna Briggs Institute (JBI) evidence-based health care model, the best evidence of airway management in adult critically ill patients was obtained and applied to the clinic. Results: The total implementation rate of airway management measures in adult critically ill patients increased from 23.62% before the implementation of quality control circle to 88.82%, and the pulmonary infection rate in critically ill patients decreased from 42.31% to 21.74%, with statistical significance between the two groups (P 0.05). Conclusion: Evidence-based quality control circle activities can standardize the practice standards of airway management in critically ill patients, reduce the occurrence of patients’ airway related complications, and improve clinical outcomes.
文摘Polyesters consisting of substituted aromatic type Schiff base mesogenic unit andpolymethylene spacers were synthesized and their thermal transitions and liquid crystallineproperties were studied. The liquid crystalline behaviour has been characterized by differentialscanning calorimetry (DSC) and optical polarizing microscopy. Structural broadening bysubstitution of methoxy group in 2, 2' positions of the mesogenic core produce polymers withlower transition temperatures. Polymers synthesized from ortho and meta substituted phenylenediamine did not form a liquid crystal phase.
文摘A novel fluorene-based conjugated copolymer containing cyclobutenedione unit was synthesized by Suzuki reaction. Its structure and properties were characterized by FTIR, 1HNMR, elemental analysis, PL spectroscopy, DSC, TGA and cyclic voltammetry. The resulting polymer shows strong yellow PL emission (561 nm) and good solubility in polar aprotic solvents, i.e. THF, DMF, DMAC, DMSO, etc. DSC and TGA studies reveal that the novel polymer possesses excellent thermal stability with high glass transition temperature of 127℃ and onset decomposition temperature of 411℃. Cyclic voltammetry measurement demonstrated that the polymer has both hole and electron-transporting property.
基金funded by a FPU a grant from the Ministry of Education of Spain
文摘Objective:To classify 21 new isolates of Trypanosoma cruai(T.cruzi) according to the Discrete Typing Unit(DTU) which they belong to,as well as tune up a new pair of primers designed to detect the parasite in biological samples.Methods:Strains were isolated,DNA extracted,and classified by using three Polymerase Chain Reactions(PCR).Subsequently this DNA was used along with other isolates of various biological samples,for a new PCR using primers designed.Finally,the amplified fragments were sequenced.Results:It was observed the predominance of DTU i in Colombia,as well as the specificity of our primers for detection of T.cruzi,while no band was obtained when other species were used.Conclusions:This work reveals the genetic variability of 21 new isolates of T.cruzi in Colombia.Our primers confirmed their specificity for detecting the presence of T.cruzi.
文摘Unit commitment (UC) is to determine the optimal unit status and generation level during each time interval of the scheduled period. The purpose of UC is to minimize the total generation cost while satisfying system demand, reserve requirements, and unit constraints. Among the UC constraints, an adequate provision of reserve is important to ensure the security of power system and the fast-response reserve is essential to bring system frequency back to acceptable level following the loss of an online unit within a few seconds. In this paper, the authors present and solve a UC problem including the frequency-based reserve constraints to determine the optimal FRR requirements and unit MW schedules. The UC problem is solved by using Lagrangian Relaxation-based approach and compared with the actual system schedules. It is observed that favorable reserve and unit MW schedules are obtained by the proposed method while the system security is maintained.
文摘In this paper, 2201 and 2212 phases as the corresponding precursor of forming 2212 and 2223 phases are discussed,and the constructive process of unit cell of 2201 phase is ascertained by XRD and chemical kinetics method. Subsequently, the process of 221
文摘The distribution of American industries has been unbalanced and most of the early industrial regions were centered in northeastern America.The northeastern traditional industrial base once was called"manufacturing belt".Since the 1950s,old industrial bases in the United States have been under recession.The northeastern region was then even called"rust belt".Some issues and measures of policy were set up by the government to adjust and restructure the old industrial bases,and some are useful experience and inspirations for our country,such as setting up special branches and organizations,establishing and implementing strategic planning for the adjustment and restructure of old industrial bases,adjusting the industrial branch and system,emphasizing on environment control and preservation and so on was achieved.Learning the successful experience from America,effective countermeasures and steps must be taken to accelerate the revival of the old industrial base in Northeastern China.
文摘目的探讨基于循证证据的标准化管理对重症加强护理病房(intensive care units,ICU)心电监护患者误警报率及护士警报疲劳的影响。方法随机选取2021年7月—2023年6月月福建医科大学附属泉州市第一医院中临床100台ICU心电监护仪器。2021年7月—2022年12月实施常规管理期间的临床50台ICU心电监护仪器纳为常规管理组,将2023年1—6月实施基于循证证据的标准化管理期间的临床50台ICU心电监护仪器纳为循证管理组。比较2组心电监护患者误警报率、报警能力处理评分和护士警报疲劳。结果循证管理组的心电监护仪器误警报率为16.13%,常规管理组为26.15%,差异有统计学意义(P<0.05)。循证管理组中护士报警能力处理评分较常规管理组高,差异有统计学意义(P<0.05)。循证管理组患者的ICU护士报警疲劳量表评分为(15.32±3.28)分,常规管理组为(21.56±4.64)分,差异有统计学意义(P<0.05)。结论基于循证证据的标准化管理可以降低ICU心电监护患者误警报率,提升护士处理能力,降低护士报警疲劳度。
文摘目的全面检索并汇总ICU成人气管插管患者围拔管期管理的最佳证据总结,为临床医护人员提供参考。方法系统检索UpToDate、BMJ Best Practice、英国国家卫生与临床优化研究所网站、苏格兰院际指南网、国际指南协作网、美国国立指南库、加拿大安大略注册护士协会网站、美国重症医学会网站、欧洲重症医学会网站、医脉通指南网、Cochrane Library、PubMed、Embase、CINAHL、中国生物医学文献数据库、中国知网、维普网、万方数据库中有关ICU成人气管插管患者围拔管期的临床决策、指南、证据总结、系统评价及专家共识等,检索时限为建库至2023年3月,由4名研究者对符合纳入标准的文献进行质量评价及证据提取。结果最终纳入16篇文献,其中临床决策5篇、指南10篇、系统评价1篇。包括拔管前(拔管前评估、制订计划、准备度测试)、拔管中、拔管后(密切监测、特殊人群、重新进食)3个主题、6个副主题、28条最佳证据。结论该研究汇总的最佳证据可为医护人员高效管理拔管失败高危人群及规范围拔管期护理提供参考,临床实践中需结合具体情况,针对性地选择应用证据,以改善患者预后,提升护理质量。
