试验旨在建立应用ISO 19036-2019标准对鱼粉中细菌总数的测量不确定度进行评定的方法。通过菌落计数法测定10组鱼粉样品中的细菌总数,分析测定过程中的3种不确定度分量(技术不确定度、基质不确定度和分布不确定度),并计算合成标准不确...试验旨在建立应用ISO 19036-2019标准对鱼粉中细菌总数的测量不确定度进行评定的方法。通过菌落计数法测定10组鱼粉样品中的细菌总数,分析测定过程中的3种不确定度分量(技术不确定度、基质不确定度和分布不确定度),并计算合成标准不确定度和扩展不确定度。结果显示,10组鱼粉样品的20个测试部分的细菌总数为3.3~5.3 lg CFU/g,扩展不确定度为0.31~0.34 lg CFU/g,技术不确定度和基质不确定度对结果不确定度具有较大的影响,分布不确定度的影响较小,实验室应特别关注把控试验过程的关键技术因素,并重视样品均匀性,以提高结果准确性。综上所述,采用ISO 19036-2019评估鱼粉中细菌总数测量不确定度,操作方法简便,分析结果可靠,可使测定结果表述更为准确和直观,适用于实验室内部质量控制。展开更多
Objective:This review aimed to identify the barriers and facilitators to equitable coronavirus disease 2019(COVID-19)vaccine distribution in Nigeria using the consolidated framework for implementation research(CFIR).M...Objective:This review aimed to identify the barriers and facilitators to equitable coronavirus disease 2019(COVID-19)vaccine distribution in Nigeria using the consolidated framework for implementation research(CFIR).Methods:A comprehensive search strategy was applied across five databases—Web of Science,MEDLINE,EMBASE,CAB Direct,and CINAHL.The search,conducted as part of a scoping review,yielded 2,751 citations.Seven studies met the inclusion criteria after screening.Data were extracted and analyzed using CFIR constructs to identify key barriers and facilitators to equitable vaccine distribution.Results:Six barriers were identified:limited physical and socioeconomic access,bribery,nepotism,and insufficient availability of translated information.Facilitators included community involvement as local monitoring agents,unannounced staff inspections,healthcare worker training tailored to community needs,and localized outreach strategies such as jingles and call-in programs.CFIR constructs,including Local Conditions,Tailoring Strategies,Available Resources,and Physical Infrastructure,provided a framework for analyzing the findings.Conclusion:This review highlights significant barriers and promising facilitators to equitable vaccine distribution in Nigeria.Targeted interventions,such as community engagement,anti-corruption measures,and culturally tailored strategies,are critical to addressing these challenges and improving access.These findings underscore the need for localized,equity-focused approaches to enhance vaccine distribution systems in Nigeria and other low-resource settings.展开更多
文摘试验旨在建立应用ISO 19036-2019标准对鱼粉中细菌总数的测量不确定度进行评定的方法。通过菌落计数法测定10组鱼粉样品中的细菌总数,分析测定过程中的3种不确定度分量(技术不确定度、基质不确定度和分布不确定度),并计算合成标准不确定度和扩展不确定度。结果显示,10组鱼粉样品的20个测试部分的细菌总数为3.3~5.3 lg CFU/g,扩展不确定度为0.31~0.34 lg CFU/g,技术不确定度和基质不确定度对结果不确定度具有较大的影响,分布不确定度的影响较小,实验室应特别关注把控试验过程的关键技术因素,并重视样品均匀性,以提高结果准确性。综上所述,采用ISO 19036-2019评估鱼粉中细菌总数测量不确定度,操作方法简便,分析结果可靠,可使测定结果表述更为准确和直观,适用于实验室内部质量控制。
文摘Objective:This review aimed to identify the barriers and facilitators to equitable coronavirus disease 2019(COVID-19)vaccine distribution in Nigeria using the consolidated framework for implementation research(CFIR).Methods:A comprehensive search strategy was applied across five databases—Web of Science,MEDLINE,EMBASE,CAB Direct,and CINAHL.The search,conducted as part of a scoping review,yielded 2,751 citations.Seven studies met the inclusion criteria after screening.Data were extracted and analyzed using CFIR constructs to identify key barriers and facilitators to equitable vaccine distribution.Results:Six barriers were identified:limited physical and socioeconomic access,bribery,nepotism,and insufficient availability of translated information.Facilitators included community involvement as local monitoring agents,unannounced staff inspections,healthcare worker training tailored to community needs,and localized outreach strategies such as jingles and call-in programs.CFIR constructs,including Local Conditions,Tailoring Strategies,Available Resources,and Physical Infrastructure,provided a framework for analyzing the findings.Conclusion:This review highlights significant barriers and promising facilitators to equitable vaccine distribution in Nigeria.Targeted interventions,such as community engagement,anti-corruption measures,and culturally tailored strategies,are critical to addressing these challenges and improving access.These findings underscore the need for localized,equity-focused approaches to enhance vaccine distribution systems in Nigeria and other low-resource settings.
