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Chinese Chemical Letters 1996年第8期7卷 753-755页

作者： Gao, h Wang, GC Liang, LJ he, BL Du, DM Wang, YM Meng, JB NANKAI UNIV STATE KEY LAB POLYMER MAT ADSORPT & SEPARATTIANJIN 300071PEOPLES R CHINA NANKAI UNIV INST POLYMER CHEMTIANJIN 300071PEOPLES R CHINA NANKAI UNIV DEPT CHEMTIANJIN 300071PEOPLES R CHINA

The intramolecular photochedcal interaction of a series of bis-coumarinyl compounds with various alkyl chain lengths (An) has been studied in/without the presence of β-cyclodextrin (β-CD) by fluorescence spectroscopy. The results show that both photedimerization andexcimer formation can occur in the respective favourable microenvironments.

关键词： BIS COUMARINYL OF INTERACTION ChAINS ALKYL

Relationship between antioxidant capacity and oxidative stress in children with acute hepatitis A

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World Journal of Gastroenterology 2006年第38期12卷 6212-6215页

作者： Mustafa Cemek Semiha Dede Fahri Bayiro■lu hseyin aksen Fatma Cemek Nihat Mert Department of Chemistry (Biochemistry Division) Faculty of Science Afyon Kocatepe University Afyon Turkey Department of Biochemistry Faculty of Veterinary Medicine Yznc Y1l University Van Turkey Department of Physiology Faculty of Veterinary Medicine Yznc Y1l University Van Turkey Department of Pediatrics Faculty of Medicine Yznc Y1l University Van Turkey

AIM： To investigate in children with acute hepatitis A. According to our knowledge, there are no data about the blood levels of malondialdehyde （MDA, an indicator of oxidative stress） and nonenzymic antioxidants in children with acute hepatitis A. METhODS： Whole blood MDA and reduced glutathione （GSh）, serum β-carotene, retinol, vitamin E and vitamin C levels were studied in 19 （10 females, 9 males） children with acute hepatitis A and in 29 （β females, 16 males） healthy control subjects. RESULTS： There was a statistically significant difference between patients and controls for all parameters （P 〈 0.05）. Lipid peroxidation marker MDA was significantly elevated （P 〈 0.001）, while antioxidants β-carotene, retinol and GSh were significantly decreased （all P 〈 0.001） in patients compared to healthy subjects. In addition, o-tocopherol and ascorbic acid levels were significantly lower in patients when compared to age and sex matched controls （P 〈 0.05, P 〈 0.01, respectively）. CONCLUSION： Our study shows that hepatitis A virus induces oxidative stress in childern with hepatitis A. This finding could be taken into consideration to improve the therapeutic approach in acute hepatitis A.

关键词： Antioxidant Oxidative stress hepatitis A Child

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聚合物熔体复杂流动时形变的研究

高分子材料科学与工程 1997年第6期13卷 21-26页

作者：李萍 G.W.M.Peters h.E.h.Meijer 江苏石油化工学院

为了研究聚合物流体在圆形通道中的流动，设定不同的速度、温度以及圆柱体在流道中的不同位置，分别进行实验，并对其数值模拟。实验和数值模拟的结果表明，我们可以得到熔体流动形变的轨迹，并用Ｃａｒｒｅａｕ－Ｙａｓｕｄａ和Ｍａｘ... 详细信息

为了研究聚合物流体在圆形通道中的流动，设定不同的速度、温度以及圆柱体在流道中的不同位置，分别进行实验，并对其数值模拟。实验和数值模拟的结果表明，我们可以得到熔体流动形变的轨迹，并用Ｃａｒｒｅａｕ－Ｙａｓｕｄａ和Ｍａｘｗｅｌ以及ＰＴＴ模型描述和比较聚合物熔体在流动中的形变。

关键词：复杂流动数值模拟粘弹性形变高聚物熔体

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环丙沙星处理对绿脓杆菌释放DNA的影响

环丙沙星处理对绿脓杆菌释放DNA的影响

Schistosomiasis is more prevalent than previously thought:what does it mean for public health goals,policies,strategies,guidelines and intervention programs?

第八届全国烧伤外科学年会

作者：彭代智 charles h Guymon Albert T McManus 肖光夏第三军医大学西南医院全军烧伤研究所创伤、烧伤与复合伤国家重点实验室

目的观察不同浓度的环丙沙星在体外诱导绿脓杆菌释放 DNA 的现象。方法选择体外对绿脓杆菌1244株（ATCC27317）敏感的环丙沙星为实验所用的抗生素,检测其 MIC 和 MBC;将不同稀释度的环丙沙星与该株绿脓杆菌37℃培养4和24 h,取其上清液经...

目的观察不同浓度的环丙沙星在体外诱导绿脓杆菌释放 DNA 的现象。方法选择体外对绿脓杆菌1244株（ATCC27317）敏感的环丙沙星为实验所用的抗生素,检测其 MIC 和 MBC;将不同稀释度的环丙沙星与该株绿脓杆菌37℃培养4和24 h,取其上清液经 DNA 电泳法检测其细菌 DNA 释放的情况。结果无论有无抗生素,DNA 电泳法均未见到体外培养4 h 的样本存在细菌 DNA 释放。体外培养24 h,绿脓杆菌可自发释放一定量的 DNA 分子,有两个明显的区带,其分子量分别在＞2000 bp 和＜100 bp 的两个区域;低于 MIC 的环丙沙星可诱导绿脓杆菌释放更多的 DNA,有三个明显的区带,其中两个区带的分子量＞2000 bp,另一个区带的分子量＜100 bp:大于或等于 MIC 的环丙沙星对绿脓杆菌无诱导 DNA 释放的作用。结论自然生长情况下绿脓杆菌就可释放一定量的 DNA 分子:低于 MIC 的环丙沙星存在使这一现象更加明显,而且绿脓杆菌 DNA 分子的释放多少和分子量大小均有明显的差别。

关键词：

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作者： h. Walter Lack.

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Infectious Diseases of Poverty 2017年第1期6卷 540-547页

作者： Daniel G.Colley Tamara S.Andros Carl h.Campbell Jr Schistosomiasis Consortium for Operational Research and Evaluation(SCORE) Center for Tropical and Emerging Global Diseases(CTEGD)University of Georgia500 DW Brooks DriveRoom 330B Coverdell CenterAthensGeorgia 30602USA Department of Microbiology University of GeorgiaAthensGeorgia 30602USA

Mapping and diagnosis of infections by the three major schistosome species(Schistosoma haematobium,*** and ***)has been done with assays that are known to be specific but increasingly insensitive as prevalence declines or in areas with already low prevalence of *** becomes a true challenge to achieving the goal of elimination of schistosomiasis because the multiplicative portion of the life-cycle of schistosomes,in the snail vector,favors continued transmission as long as even a few people maintain low numbers of worms that pass eggs in their *** mapping tools based on detection of worm antigens(circulating cathodic antigen-CCA;circulating anodic antigen-CAA)in urine of those infected are highly sensitive and the CAA assay is reported to be highly *** these tools in areas of low prevalence of all three of these species of schistosomes has demonstrated that more people harbor adult worms than are regularly excreting eggs at a level detectable by the usual stool assay(Kato-Katz)or by urine *** very low prevalence areas this is sometimes 6-to10-fold *** with what appears to be a sizable population of“egg-negative/worm-positive schistosomiasis”especially in areas of very low prevalence,national NTD programs are confounded about what guidelines and strategies they should enact if they are to proceed toward a goal of *** is a critical need for continued evaluation of the assays involved and to understand the contribution of this“egg-negative/worm-positive schistosomiasis”condition to both individual morbidity and community *** is also a critical need for new guidelines based on the use of these more sensitive assays for those national NTD programs that wish to move forward to strategies designed for elimination.

关键词： Schistosomiasis mansoni Circulating cathodic antigen Kato-Katz Mapping Diagnosis

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投资学

RECRYSTALLIZATION BEhAVIOR AND PRIOR AUSTENITE GRAIN BOUNDARY CORROSION IN ThE PLANE STRAIN COMPRESSION CONDITION FOR A LOW CARBON X70 PIPELINE STEEL

作者： h. B.·梅奥

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Acta Metallurgica Sinica(English Letters) 2004年第6期17卷 830-834页

作者： Y.h.Li J.Wang Y.S.Li Y.KShan Dep.ofMaterialScienceandEngineering ShenyangLigongUmversityShenyang110168China InstituteofIndustry NingboPolytechnicNingbo315800China SchoolofMaterial＆ChemicalEngineering SouthernInstituteofMetallurgy＇Ganzhou341000China InstituteofMetalResearch TheChineseAcademyofSdencesShenyang110016China

Recrystallization behavior of a low carbon X70 pipeline steel was studied in the plane strain compression condition. It was found that the dynamic recovery but no dynamic recrystal- lization occurred in the current ex... 详细信息

关键词： pipeline steel, plane strain compression, recrystallization, austenite grain boundary

STUDY ON ThE TANTALIZING ON ThE SURFACE OF TITANIUM ALLOY BY NET-ShAPE CAThODE GLOW DISChARGING

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Acta Metallurgica Sinica(English Letters) 2005年第3期18卷 375-379页

作者： F.Chen h.Zhou Y.F.Zhang J.D.Pan DepartmentofMechanicalEngineering BeijingInsistuteofPetro-ChemicalTechnologyBeijing102617China DepartmentofMechanicalEngineering BcijingInstituteofGraphicCommunicationBcijing102600China DepartmentofPressandPacking ResearchInstituteofSurfaceEngineeringTaiyuanUniversityofTechnologyTaiyuan030024China

A new net-shape cathode sputtering target which has a simple structure and a hig h sputtering was put forward. The multiple-structure made of alloying and coatin g layers of tantalum was achieved on the surface of TC4 (Ti6Al4V) using this met hod in double glow surface alloying process. The tantalized samples were investi gated by SEM, XRD and electrochemical corrosion method .Results show the complic ated tissue of pure tantalizing layer and diffusion layer was successfully forme d on the surface of TC4 with the method of net-shape cathode glow discharge, whi ch further improved the corrosion-resistance of TC4 and formed good corrosion-re sistant alloys.

关键词： TC4 (Ti6Al4V) cathode sputtering tantalizing

hepatocellular carcinoma in central Sydney :a 10yearreview of patients seen in a medical oncology department

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World Journal of Gastroenterology 1999年第6期5卷 483-487页

作者： Desmond Yip 1, Michael Findlay 2, Michael Boyer 1 and Martin h. Tattersall 3 Royal Prince Alfred hospital 澳大利亚 Wellington Cancer Centre 新西兰 University of Sydney 澳大利亚

AIM To report a single Australian oncology unit′s experience with the management of patients with hepatocellular carcinoma (hCC), in the context of a literature review of the current management issues. METhODS Retrospective case record review of 76 patients with diagnosis of hCC referred to the unit between 1984 and 1995. RESULTS Sixty three patients had adequate records for analysis. Thirty six (56%) were migrants with half from Southeast Asia. Twenty four patients had a documented viral aetiology. Nine (14%) of 51 patients with pathological confirmation of hCC had normal alpha fetoprotein levels. Median survival of the 20 patients managed palliatively was 5 weeks compared to 16 weeks for the cohort overall. Surgery in 16 patients rendered all initially disease free with a median survival of 88 weeks. Chemoembolisation induced tumor responses in 5 of the 11 patients so treated. Systemic chemotherapy and tamoxifen treatment caused tumor response in two of 12 and one of 25 respectively. CONCLUSION Prolonged survival of patients with hCC depends on early detection of small tumors suitable for surgical resection. Other active treatments are palliative in intent and have limited success. In addition to tumor response and survival duration, the toxicities of therapies and the overall quality of life of patients need to be considered as important outcomes. Viral hepatitis prevention and screening of individuals at risk are strategies that are important for hCC management in communities where the disease is endemic.

关键词： carcinoma, hepatocellular liver neoplasms survival/rate Australia