Results 51 to 60 of about 11,547 (179)

Development of a quantitative ELISA detection method for Coxsackievirus A group 16 strain(CA16) antigen [PDF]

open access: yes, 2012
目的:建立柯萨奇病毒A组16型(CA16)抗原的双抗体夹心ElISA定量检测方法,用于CA16灭活疫苗的研发和生产过程的抗原定量检测。方法:以CA16中和单抗T26H12为包被抗体、nA14b9为标酶抗体,构建定量检测CA16抗原的双抗体夹心ElISA方法,并对方法的特异性、灵敏度、精密度、准确性、线性和稳定性进行分析。结果:建立了双抗体夹心定量检测CA16抗原的ElISA方法。方法的线性相关系数r2=0.998,线性范围为8~128 ng/Ml,定量限度为8 ng/Ml;变异系数CV80 ...
何德磊   +8 more
core  

太湖水体磷浓度与赋存量长期变化(2005-2018年)及其对未来磷控制目标管理的启示

open access: yes, 2020
为揭示大型浅水湖泊水体磷浓度对湖泊外源负荷削减和生态系统变化的响应规律,指导富营养化湖泊水生态修复和管理实践,利用太湖湖泊生态系统研究站2005-2018年连续14年的太湖水体各形态磷浓度的月、季度调查数据,估算了太湖湖体各形态磷赋存量的季度变化,分析了太湖水体磷浓度受湖泊水位、水量、蓝藻水华态势(蓝藻总生物量及水华出现面积)等环境条件变化的影响特征.结果表明,在连续10年的全流域高投入污染治理背景下,太湖水体总磷浓度仍未发生显著下降,水体各形态磷浓度在年际、月际及空间上的变幅大 ...
朱广伟   +13 more
semanticscholar   +1 more source

Hydraulic traits are coordinated but decoupled from carbon traits in herbaceous species

open access: yesFunctional Ecology, Volume 39, Issue 5, Page 1302-1317, May 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Plant hydraulic traits primarily define the water regulation strategy, thus enabling a better understanding of vegetation structure, function and dynamics under varying hydro‐environments.
Ruike Huang   +9 more
wiley   +1 more source

临床生化检验室内质控和室间质控六年结果的评价

open access: yesZhongguo shiyan zhenduanxue, 2006
目的对室间质量评价的得分情况进行统计学分析,总结室内质控和室间质量评价的经验,以便更好地为临床服务。方法用全自动生化分析仪检测盲样19项临床生化指标。结果六年中质控检测19项指标,变异指数得分(VIS)A级占83.19%,B级占13.14%,C级占3.67%。1999年-2004年Na VIS得分A级从50%提高到60%,ClVIS得分A级从40%-88%。结论经过改进使过去结果不太准确的指标得到修正,质量控制对于临床生化检验结果的质量保证非常重要,只有做好室内质控和室间质量评价 ...
李红霞, 贾玫, 岳志红
doaj  

The Isolation, Purification, Structure Identification and Bio-activity Assay of the Effective Components in Licorice and the Study of the Fingerprinting based on Activity [PDF]

open access: yes, 2005
中药有效成分是其发挥药效作用的物质基础,对评价中药材的质量、制定中药质量控制标准控制、优化制剂工艺、揭示中药作用机制、实现中药现代化具有重要意义。甘草酸和甘草黄酮是中药甘草中主要的有效成分,目前的分离纯化方法存在着繁琐、工作量大的缺点,用做质量控制指标成分的标准品也由于制备困难无法满足市场需求,在活性研究方面也存在某些空白,本论文在甘草有效成分的分离纯化,结构鉴定,生物活性测试及指纹图谱技术方面进行了大量有益的研究探索 ...
傅博强
core  

Systematic review of the impact of restrictive wildlife trade measures on conservation of iconic species in southern Africa

open access: yesConservation Biology, Volume 39, Issue 1, February 2025.
Abstract Trade restrictions are often advocated and implemented as measures to protect wild species threatened by overexploitation. However, in some instances, their efficacy has been questioned, notably by governments in the southern African (SADC) region, which tend to favor a sustainable use approach to wildlife management. We conducted a systematic
Christina Hiller   +1 more
wiley   +1 more source

Quantifying water effluent violations and enforcement impacts using causal AI

open access: yesPolicy &Internet, Volume 16, Issue 2, Page 317-338, June 2024.
Abstract In the landscape of environmental governance, controlling water pollution through the regulation of point sources is vital as it preserves ecosystems, protects human health, ensures legal compliance, and fulfills global environmental responsibilities.
Yingjie Wang   +3 more
wiley   +1 more source

炎症性肠病的治疗与管理进展 [PDF]

open access: yes, 2019
炎症性肠病(IBD)是一类具有终生复发倾向的肠道慢性炎症性疾病,需要长期用药,且费用昂贵。本文结合最新IBD的治疗与管理研究进展,从几个关键点出发,涉及IBD的5-氨基水杨酸(5-ASA)的优化治疗方案、生物制剂与免疫调节治疗方案、心理治疗方案、肠道菌群治疗方案、以及IBD管理中的5S原则,旨在增强基层医师对IBD的认识,提高基层医师对IBD的治疗与管理水平。陕西省普通高等学校优势学科建设项目(陕教位[2014 ...
冯巩   +5 more
core  

Analysis on the surveillance data of death causes among the registered residents in Taishun County, Zhejiang Province from 2016 to 2023 [PDF]

open access: yes
ObjectiveTo investigate the mortality level and leading causes of death among the registered residents in Taishun County, Zhejiang Province from 2016 to 2023, as as to provide evidence for the formulation of relevant disease prevention and control ...
WANG Fenghui, WENG Shizhong
core   +1 more source

Improvement of Health Care Quality of A Hospital in FuZhou [PDF]

open access: yes, 2006
论文摘要在当今竞争日益激烈的医疗市场环境下,越来越多的医疗机构开始通过实施国际医疗质量管理标准,建立现代医疗质量管理体系,提高医疗护理服务水平,进而提高客户的忠诚度和满意度,减少医疗风险,促进自身发展。在这种形势下,A医院通过实施JCI医院评审标准认证来加强医疗质量管理,提高医院核心竞争力是必然的趋势。全文共分为四章:第一章对福州医疗行业情况进行分析。首先对福州医疗行业的波特竞争模型作简要说明,然后对福州医疗行业竞争现状作具体分析,着重论述了在目前医疗服务行业的发展及变化趋势 ...
刘丹
core  

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