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乳腺导管原位癌术前MRI对手术结果的影响

国际医学放射学杂志 2020年第4期 482-483页

作者： g.Y.Yoon W.J.Choi H.H.Kim J.H.cha H.J.Shin E.Y.chae 樊奇 Department of Radiology and Research Institute of Radiology Asan Medical Center University of Ulsan College of Medicine

术前MRI对乳腺导管原位癌(DCIS)病人手术结果的预测作用尚不明确。目的探讨超声引导下经皮穿刺活检(CNB)证实的DCIS术前MRI与手术结果之间的关系,评

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Recovery of lead and silver from zinc acid-leaching residue via a sulfation roasting and oxygen-rich chlorination leaching method

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Journal of Central South University 2020年第12期27卷 3567-3580页

作者： WANg Rui-xiang YANg Yu-dong LIU cha-xiang ZHOU Jie FANg Zhuang YAN Kang TIAN Lei XU Zhi-feng School of Metallurgical and Chemical Engineering Jiangxi University of Science and TechnologyGanzhou 341000China

A large amount of acid-leaching residue is produced during the conventional Zn hydrometallurgy process,and this residue has a large concentration of a variety of valuable *** purpose of this study was to evaluate the ability of a procedure that entails the use of sulfation roasting,water leaching,and chlorination leaching(blowing oxygen technique)to recover Pb and Ag,followed by cooling crystallization and the replacement of Ag with lead sheet,to realize the full recovery of all valuable metals from zinc acid-leaching residue;consequently,good results were *** best results were obtained under the following conditions:a sulfuric acid at 70%of the raw material quality,roasting temperature of 300°C and roasting time of 2 h,followed by the process of leaching the roasted residue for 1 h by applying a water-to-solid ratio of 5꞉1 at room *** recovery rates of Zn and Fe were 98.69%and 92.36%,*** main parameters of the chlorine salt leaching system were as follows:Cl−concentration of 300 g/L,Fe3+concentration of 25 g/L,acid concentration of 2 mol/L,liquid-to-solid ratio of 9 mL:1 g,temperature of 90℃,and leaching time of 0.5 h;this leaching process was followed by filtration *** conditions resulted in high extents of leaching for Pb and Ag(i.e.,98.87%and 96.74%,respectively).Finally,the kinetics of the process of Ag leaching using Cl−ions in an oxygen-rich medium was *** was found that the leaching process was controlled by the diffusion of the product layers,and the activation energy was 19.82 kJ/mol.

关键词： acid-leaching residue sulfation roasting chlorine salt Pb,Ag kinetics

Analysis of the Relationship between Oral Diseases and glycemic Control of Diabetes in the West African Context: Survey at the Centre Anti-Diabetique d’Abidjan (CADA),cote d’Ivoire

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Open Journal of Epidemiology 2018年第4期8卷 213-225页

作者： Jean-Claude guinan guanga David Meless Abou Dramane Sangaré Datté Atta Sébastien Mamadou Samba Viviane Da-Danho Ramata Bakayoko-ly Département de Santé Publique UFROS UFHB Abidjan cote d’Ivoire Laboratoire de Santé Publique Cariologie et Plantes Médicinales Abidjancote d’Ivoire

The relationship between diabetes and periodontitis is established and described as a bidirectional influence, whereas that with dental caries is still controversial. The objective of this study was to analyze the relationship between blood glucose control and oral diseases in a population of diabetics followed at the “Centre Anti Diabétique d’Abidjan” (CADA). The dental condition of the diabetics included in this cross-sectional study was assessed by the DMF index, periodontal condition by the CPITN and oral hygiene by the OHIS index. Diabetes data were extracted from CADA patient medical records. Blood glucose control has been defined by an average of the blood glucose values of the last 3 months less than or equal to 1.26 g/l. Regression models were constructed to estimate the risk of diabetes imbalance adjusted for all characteristics collected. The sample of 356 diabetics consisted of 53.7% women with an average age of 55.6 years (range: 12 - 85 years). The average DMF index was 7.9 (Std: 6.6) with an estimated prevalence of caries of 77.0%, that of periodontitis of 53.1%. The proportion of subjects with good glycemic control was estimated at 41.3%. The characteristics associated with glycemic control were: dry mouth (p = 0.005), type of diabetes treatment (p glycemic control of diabetes described in the literature but didn’t find significant association between dental caries and diabetes.

关键词： Diabetes glycemic Control Oral Health Periodontitis Dental Caries West Africa cote d’Ivoire

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英语定冠转换词研究

攀枝花学院学报 2018年第3期35卷 57-65页

作者：张叉四川师范大学外国语学院四川成都610101

在英语词汇学中,某些形容词、副词、现在分词、过去分词、基数词和序数词之前加定冠词可转换成名词,这些名词可名之为"定冠转换词"。本文在大量占据《圣经》、希腊罗马神话、英语谚语与《毛泽东选集》英文版等语料的基础上,对英语定冠... 详细信息

在英语词汇学中,某些形容词、副词、现在分词、过去分词、基数词和序数词之前加定冠词可转换成名词,这些名词可名之为"定冠转换词"。本文在大量占据《圣经》、希腊罗马神话、英语谚语与《毛泽东选集》英文版等语料的基础上,对英语定冠转换词的构成方式、特征与词意转变等作了较为系统的研究。

关键词：英语定冠转换词研究

基于LI-RADS的细胞外对比增强MRI结合扩散加权成像与钆酸MRI诊断HCC的前瞻性对照研究

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国际医学放射学杂志 2020年第5期 620-621页

作者： D.I.cha g.S.Choi Y.K.Kim J.M.Kim T.W.Kang K.D.Song 范萍萍 Department of Radiology and Center for Imaging Science Samsung Medical Center Sungkyunkwan University School of Medicine

摘要目的本研究目的是应用肝脏成像报告和数据系统(LI-RADS) v2018,比较评估引入扩散加权成像(DWI)为主要特征之一的细胞外制剂(ECA) MRI与钆酸(肝胆制剂,

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1-丁基-3-甲基咪唑六氟磷酸盐离子液体对PEg20M固相微萃取涂层萃取性能的影响

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中南民族大学学报（自然科学版） 2015年第2期34卷 10-13页

作者：察冬梅哈朴中南民族大学化学与材料科学学院分析化学国家民委重点实验室武汉430074

利用1-丁基-3-甲基咪唑六氟磷酸盐离子液体和PEg20M为涂层材料,制备了复合PEg20M固相微萃取探头,与气相色谱联用测定了水中邻氯苯酚和4-硝基甲苯,并对萃取温度、萃取时间、盐浓度、溶液p H值等萃取条件,解吸温度和解吸时间进行了优化,... 详细信息

利用1-丁基-3-甲基咪唑六氟磷酸盐离子液体和PEg20M为涂层材料,制备了复合PEg20M固相微萃取探头,与气相色谱联用测定了水中邻氯苯酚和4-硝基甲苯,并对萃取温度、萃取时间、盐浓度、溶液p H值等萃取条件,解吸温度和解吸时间进行了优化,结果表明:当水样中氯化钠浓度为0.40 g/m L,p H=5时,于30℃萃取30 min,萃取效果最好;140℃下3 min可完成解吸.与未加离子液体的PEg20M固相微萃取涂层相比,该涂层改善了检测的检出限和重现性,但因离子液体粘度较大等,涂层制备的重现性有待进一步提高.

关键词：离子液体固相微萃取气相色谱邻氯苯酚 4-硝基甲苯

Hypoglycemic and antioxidant activities of Clerodendrum inerme leaf extract on streptozotocin-induced diabetic models in mice

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Chinese Herbal Medicines 2019年第4期11卷 387-393页

作者： Hai Trieu ly Thi Thu Huong Nguyen Thi Thanh Loan Tran Bich Thao Lam Thi Thu Huong Phung Van Minh Le Research Center of ginseng and Medicinal Materials(CgMM) National Institute of Medicinal MaterialsHo Chi Minh City 700000Viet Nam University of Science Vietnam National UniversityHo Chi Minh City 700000Viet Nam University of Medicine and Pharmacy Ho Chi Minh City 700000Viet Nam NTT Hi-Tech Institute Nguyen Tat Thanh UniversityHo Chi Minh City 700000Viet Nam

Objective:Recently,much attention has been paid to natural product-derived compounds for antidiabetic drug *** recent studies are being focused on clarifying the bioactivity of plants and derived *** aim of the present study was to investigate the anti-oxidant and antidiabetic activities of Clerodendrum inerme leaf extract(CILE)in streptozotocin-induced diabetic ***:*** leaves were analyzed for preliminary phytochemical properties and the content of total phenolic and flavonoid were *** vitro anti-oxidant activity was measured using DPPH ***-induced diabetic model in mice was applied for in vivo study by the effect of CILE at two dose levels(343 and 686 mg/kg b.w.).Results:The results showed that *** leaves contained the major constituents of flavonoids,alkaloids,tannins,triterpenes,and *** exhibited the total polyphenol and flavonoid content with 120.458 mg gallic acid equivalent/g dry weight and 4.494 mg hispidulin equivalent/g dry weight,*** anti-oxidant activity of CILE was expressed with IC50=25.28μg/m *** at the doses of343 mg/kg and 686 mg/kg after 7 d administration exerted a decrease in plasma glucose,protected the liver,kidneys against oxidation stress via increasing glutathione content in the liver,and reduced malondialdehyde content in the liver and *** histological analysis in diabetic mice treated with CILE also showed the pancreaticβ-cells regeneration via increasing the size and number of pancreatic ***:These findings suggested that *** leaves had potent antidiabetic and anti-oxidant *** results provide reliable scientific base,which is the premise for further research and development of CILE as supplements.

关键词： antidiabetic activity anti-oxidant Clerodendrum inerme(L.)gaertn flavonoids hypoglycemic activity polyphenols

锂电池中低成本碳包覆磷酸铁锂正极材料的合成及其性能

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化学学报 2009年第20期67卷 2275-2278页

作者：徐土根王连邦李晟马淳安浙江工业大学化学工程与材料学院绿色化学合成技术国家重点实验室培育基地杭州310032 杭州师范大学材料与化学化工学院杭州310036 杭州师范大学有机硅化学及材料技术教育部重点实验室杭州310012

磷酸铁锂作为动力锂离子电池的正极材料正逐渐走向市场.以Li3PO4,FePO4,Fe粉以及乙醇为原料,采用高温热分解方法成功地制得乙醇碳包覆的LiFePO4正极材料.实验结果表明,该LiFePO4/C材料颗粒均匀,分散性好,粒径大约在200nm～1μm之间,颗... 详细信息

磷酸铁锂作为动力锂离子电池的正极材料正逐渐走向市场.以Li3PO4,FePO4,Fe粉以及乙醇为原料,采用高温热分解方法成功地制得乙醇碳包覆的LiFePO4正极材料.实验结果表明,该LiFePO4/C材料颗粒均匀,分散性好,粒径大约在200nm～1μm之间,颗粒表面被碳包覆,颗粒之间由碳纤维连接.该正极材料首次放电容量达137mAh·g-1,首次充放电库仑效率在95%以上,50次循环后,放电容量基本不衰减,显示出良好的循环稳定性和可逆性.本研究降低了锂离子电池的生产成本,显示了良好的工业化应用前景.

关键词：锂离子电池动力电池正极材料磷酸铁锂碳包覆

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早产儿脑室周围-脑室内出血研究现状

中国妇幼保健 2016年第18期31卷 3875-3878页

作者： Sanjay Kumar cha 朱晓芳长江大学医学院第二临床学院湖北荆州434020 长江大学第二临床学院荆州市中心医院新生儿科湖北荆州434020

近年来,随着围产医学及新生儿重症医学的发展,极低和超低出生体重儿的存活率都显著提高,其远期的生存质量也备受关注,而早产儿颅内出血是严重影响该人群生存质量的重要因素。脑室周围–脑室内出血（periventricular-intraventricular he... 详细信息

近年来,随着围产医学及新生儿重症医学的发展,极低和超低出生体重儿的存活率都显著提高,其远期的生存质量也备受关注,而早产儿颅内出血是严重影响该人群生存质量的重要因素。脑室周围–脑室内出血（periventricular-intraventricular hemorrhage,PIVH）是早产儿颅内出血中常见的一种类型,主要见于胎龄〈32周、体重低于1 500 g的早产儿,是引起早产儿死亡和伤残的主要原因之一。本文就国内外关于早产儿PIVH的研究现状进行综述,以提高临床医生的认识。

关键词：早产儿颅内出血危险因素预防治疗