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1.
Cyanide is a highly toxic agent that has been frequently used for suicide in South Korea. It is also used in various industrial fields, such as metal plating, in which many accidental cyanide intoxications have occurred. To overcome the disadvantages of conventional cyanide analysis methods, a simple and fast method for the analysis of cyanide in whole blood using ion chromatography (IC) with amperometric detection was developed in this study. Whole blood samples were deproteinized, diluted, and analyzed using an IC–amperometric detection system. The limits of detection and quantitation were 0.1 and 0.2 mg/L, respectively. The method showed good linearity in the range of 0.2 to 50 mg/L with R2 > 0.99. The intra- and inter-assay precision and accuracy values were <10%. The established method was successfully applied to analyze whole blood samples from three cyanide intoxication cases. 相似文献
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目的:观察电针对血管性痴呆(vascular dementia,VD)模型大鼠学习记忆能力和局部服血流量(regional cerebral blood flow,rCBF )的影响。方法:用双侧颈总动脉反复缺血-再灌注结合腹腔注射硝普钠法,并配合行为学测试确定模型。术后7d电针百会、大椎、足三里(双)治疗。用跳台法评价各组大鼠不同时期的学习记忆能力,治疗后测定各组大鼠顶叶有海马rCBF。结果:VD大鼠在电针治疗后的行为学测试成绩明显提高(P<0.01),其低下的大脑顶叶及海马rCBF水平明显改善(P<0.01)。结论:电针对VD大鼠的学习记忆能力有显的改善作用;电针能促使机体低灌流的缺血服组织灌流水平恢复,可能有助于与学习记忆相关的传导环路的修复。 相似文献
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血液样品中乙醇稳定性的实验研究 总被引:1,自引:0,他引:1
目的考察在不同存放条件下含乙醇的血液样品中乙醇浓度的变化情况。方法采用顶空-气相色谱法,以异丙醇为内标,对存放条件不同的血液样品中乙醇进行检测。结果冷冻(-10℃)条件存放1至30天,血液样品中乙醇含量无显著变化;冷藏(4℃)条件存放1至30天,血液样品中乙醇含量变化不显著;室温(28℃~33℃)条件存放1至30天,血液样品中乙醇含量显著改变。结论含有乙醇的血液样品,在冷冻、冷藏条件下可较稳定的存放30天;在室温条件下存放30天血液样品中乙醇浓度发生显著变化,不可在此条件下存放。 相似文献
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目的探讨mtDNA-HVI和Cyt b片段复合扩增法鉴定人与动物混合血痕种属的应用价值。方法用chelex-100法从人、牛、猪、狗、兔、鱼、鸡和鼠血痕中提取DNA,复合扩增mtDNA-HVI片段和Cyt b片段,琼脂糖凝胶电泳检测。结果人类在mtDNA-HVI区和Cyt b区分别出现279bp和358bp各一条带,且279bp条带亮于358bp;动物均只有358bp一条带。人与7种动物血痕的检测灵敏度均为3.13ng。检测人与动物混合DNA,灵敏度仍为3.13ng,但358bp条带亮于279bp条带。结论当358bp带明显强于279bp带时,提示检材为人与动物的混合。 相似文献
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市场化和现代化不断在全球渗透、扩张,工具理性主义、世俗功利主义和极端个人主义严重挤压着幸福生活的空间。我国幸福度的提升遭遇了很多隐忧,越来越陷于物化和利益私我化泥潭的民众,享受着几何级数递增的丰硕物质财富,幸福感却没有随之增加。挖掘和坚守儒学幸福思想,有利于构建一种超越物欲、物役、“GDP崇拜”的当前幸福观,形成和谐社会的价值共识理念。引领人们实现更美好、更尊严的可持续性幸福生活。 相似文献
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Abubakari Ahmed Abdul-Rahim Abdulai Issaka Kanton Osumanu Raqib Abu Salia 《国际公共行政管理杂志》2016,39(11):821-832
Donor aid has over the years turned out to be a very decisive development component for most developing nations, but aid is often criticized for ineffectiveness. This article seeks to share perspectives on the relevance of direct project or program support and the need to refrain from homogeneity in aid research by assessing the contribution of the Government of Ghana/European Union (GoG/EU) Micro-Projects Programme in the Nadowli District of Ghana from 1997–2009. The findings acknowledge positive impacts of the program in the district. There are sector consistencies between the donor interest and local development priorities in health, education and the water and sanitation sectors. However, selectivity of project within and among sectors brings potential conflicts of interest and tradeoffs between the program and local community needs. The results imply a reexamination of decentralized development through a lens of new partnership between donors’ interest and local needs. Stepping up community awareness to ensure full participation in project design, execution, operation, and maintenance could serve as a start-up platform for new partnerships. It is imperative to align donor interest with local realities, which prompts a rethinking of adoption of new project approaches such as co-development, design, and implementation. 相似文献
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Karolina Nowak M.Sc. Paweł Szpot Ph.D. Marcin Zawadzki Ph.D. 《Journal of forensic sciences》2020,65(5):1784-1790
We present results of our study on the stability of 4-chloromethcathinone (4-CMC) in authentic postmortem peripheral blood and vitreous humor samples. The stability of 4-CMC was determined in postmortem blood samples (for a period of 90 days) and vitreous humor (30 days) at three different temperatures: −15°C, +4°C, and + 23°C. The analyses were carried out using ultra-high-performance liquid chromatography coupled with triple-quadrupole tandem mass spectrometry (UHPLC-QqQ-MS/MS). In both materials, the lowest 4-CMC stability was demonstrated at room temperature. The blood samples stored in a freezer (−15°C) showed stability for the entire study period (90 days), while in the case of the vitreous humor sample stored at the same temperature the concentration of the substance decreased by 53% after 30 days. The study carried out in authentic postmortem blood and vitreous humor samples confirms the previous reports of 4-CMC instability in biological material. Authors suggest that the biological material should be stored frozen until analyses are carried out as soon as possible after collection of the material. 相似文献
10.
Joseph Hanlon 《Third world quarterly》2017,38(3):753-770
Strenuous efforts by donors and lenders over four decades turned Mozambique from a socialist success story into a neoliberal capitalist one. The private sector dominates; a domestic elite dependent on foreign companies has been created. But a secret US$2.2 billion arms and fishing boat deal involving Swiss and Russian banks and Mozambican purchases from France, Germany, and Israel, with large profits on all sides, was a step too far down the donor’s capitalist road. The International Monetary Fund cut off its programme and western donors ended budget support. 相似文献