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Im.act of poly chlorinated biphenyl (Aroclor 1254) and vitamin C on antioxidant system.of rat ventral prostate

Asian Journal of Andrology 2004年第1期6卷 19-22页

作者： m. Sridhar P. Venkataraman S. Dhanamm.l A. Arunkum.r m.m. Aruldhas N. Srinivasan J. Arunakaran Departm.nt of Endocrinology Dr. ALM Post Graduate Institute of Basic Medical Sciences University of MadrasTaramani Chennai 600 113 India

Aim. To evaluate the effect of polychlorinated biphenyls (PCB) and vitamin C on ventral prostatic antioxidant system.in adult m.le rats. m.thods: A group of 20 adult m.le rats were adm.nistered ip Aroclor 1254 in corn oil at a dose of 2 m.·kg-1·day-1 for 30 days. Ten control rats were adm.nistered only the vehicle. After 30 days the treated rats were divided at random.into 2 sub-groups of 10 anim.ls each. One sub-group received vitamin C at a dose of 500 m.·kg-1·day-1 for 10 days. The other group was m.intained as Aroclor 1254 control. Twenty-four hours after the last treatm.nt the rats were killed by decapitation. Ventral prostatic hom.genate was prepared and used for the estim.tion of enzym.tic antioxidants, including superoxide dism.tase (SOD), catalase (CAT) and glutathione-S-transferase (GST) and hydrogen peroxide (H2O2), lipid peroxidation (LPO) and prostatic acid phosphatase. The serum.levels of total T3, total T4, TSH, testosterone and estradiol were also assayed. Results: The body weight and ventral prostatic weight were reduced in PCB treated rats. The activities of SOD, CAT, GST and acid phosphatase were decreased while the levels of H2O2 and lipid peroxidation were increased in the ventral prostate of PCB treated rats. Adm.nistration of vitamin C restored these parameters. Serum.levels of thyroid horm.nes, estradiol and testosterone were decreased in PCB treated anim.ls. Adm.nistration of vitamin C restored the thyroid horm.ne levels. Conclusion: PCB induces oxidative stress and decreases the antioxidant enzym.s in the ventral prostate of adult m.le rats; the effects could be reversed by the adm.nistration of vitamin C.

关键词： polychlorinated biphenyls Aroclor 1254 ventral prostate antioxidants lipid peroxidation thyroid horm.ne vitamin C

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柴油乳化液喷雾闪急沸腾与微爆现象的激光阴影试验研究(英文)

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内燃机学报 2009年第4期27卷 306-313页

作者： m.DHAT Elkelawy 张煜盛 alm El-Din Hagar 余敬周 El Zahaby A m.El Shenawy E A Khalil A 华中科技大学能源与动力工程学院湖北武汉430074 Faculty of Engineering Department of Mechanical Engineering Tanta University Egypt

在常压定容室内,应用ND:YAG激光阴影法、高分辨率CCD照相机和粒径分析软件,对不同含水量的柴油乳化液雾油滴的闪急沸腾与微爆现象以及油滴粒径分布进行了试验测量与变参数对比分析,探讨了在130℃温度条件下,乳化油含水量对乳化油喷雾液... 详细信息

在常压定容室内,应用ND:YAG激光阴影法、高分辨率CCD照相机和粒径分析软件,对不同含水量的柴油乳化液雾油滴的闪急沸腾与微爆现象以及油滴粒径分布进行了试验测量与变参数对比分析,探讨了在130℃温度条件下,乳化油含水量对乳化油喷雾液滴闪急沸腾和微爆的影响,揭示了微爆效应在喷雾雾化和液滴碎化中的作用机理。试验结果表明,包覆于油中的水相颗粒受热闪急沸腾所形成的高压蒸气团冲破无水边界层是导致油滴发生微爆和进一步破碎分裂的首要原因;微爆现象随乳化油含水量的增高而趋强;喷雾索特平均直径(Sm.)的细化率随乳化油含水量和喷雾贯穿距的增加而增大,且乳化油含水量对喷雾Sm.细化率的影响程度也随喷雾贯穿距的增加更加显著。

关键词：微爆闪急沸腾柴油乳化液滴径测量阴影照相

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儿童期早期哮喘症状与预后

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世界核心医学期刊文摘（儿科学分册） 2006年第A10期2卷 9-10页

作者： Goksfr E. U■ark m. alm B. G. Wennergren 李开 Departm.nt of Paediatrics Gteborg University Queen Silvia Children' s Hospital SE- 416 85 Gteborg Sweden

Aim. To study the outcom. in early adulthood for children with early asthm. sym.tom. and to analyse the factors associated with current asthm.. m.thods: In a prospective study, we have re- investigated 89/101 children who were hospitalized before the age of two years due to wheezing. The children were investigated using a questionnaire and allergy and bronchial hyperresponsiveness tests at the age of 17- 20 years and com.ared with age- m.tched controls. Results: In the cohort, 43% had had asthm. sym.tom. in the preceding 12 m.nths com.ared with 15% in the control group. The strongest risk factors for asthm. were current allergy, bronchial hyper- responsiveness and fem.le gender. Fem.le gender and passive sm.king in infancy were independent infantile risk factors. In addition to fem.le gender, two pathways led to current asthm.: an allergic pathway from.family atopy via the developm.nt of allergy and another pathway from.early passive sm.king via hyperresponsiveness and active sm.king. Conclusion: In children with early wheezing disorder, current allergy, bronchial hyper- responsiveness and fem.le gender were the strongest risk factors for asthm. in early adulthood, while fem.le gender and passive sm.king in infancy were independent infantile risk factors. The effects of early passive sm.king persist longer than previously reported.

关键词：哮喘症状童期支气管高反应性被动吸烟过敏体质婴儿期早发性家族遗传性女性性别

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时尚的偶像永恒的经典小礼服

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丛书名：图解时装大师

2016年

作者：（美）莎拉·阿尔墓（SARA alm）汉娜·麦蒂维（HANNAH m.DEVITT）柯瑞·汉斯（KERRIE HESS）图片谢琛译

这些美丽超凡的女子身着美丽超凡的小礼服，奥黛丽的小黑裙、玛丽莲的经典白色褶裥裙、杰奎琳的一字领A型裙等，至今仍然让我们为之眩目。《时尚的偶像永恒的经典小礼服》为你提供了自己动手制作这些经典小礼装所需要的一切：经典的... 详细信息

ISBN: (纸本)7518020973

这些美丽超凡的女子身着美丽超凡的小礼服，奥黛丽的小黑裙、玛丽莲的经典白色褶裥裙、杰奎琳的一字领A型裙等，至今仍然让我们为之眩目。《时尚的偶像永恒的经典小礼服》为你提供了自己动手制作这些经典小礼装所需要的一切：经典的黑白老照片，唤起我们的记忆；彩色线条的时装效果图，启发着我们的创作灵感；号型尺寸齐全的1：1纸样，可按S/m.L号直接剪裁制作；分步绘制的缝制插图，让大家都可以跟上工艺的步骤； 10款经典小礼服的制作细节说明，再加上10款根据当代时尚流行稍作改进的变化款设计，本书为您提供20款小礼服的样式。这本《时尚的偶像永恒的经典小礼服》既原汁原味又完整齐全的时装工艺书是送给所有喜更多...

关键词：图解服装量裁女服

来源：汇雅图书（南通市图书馆... 畅想之星图书光盘版（南... 评论

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m.nagem.nt of m.lanom.

Management of Melanoma

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中国抗癌协会临床肿瘤学协作中心（CSCO）第五届年会

作者： Charles m. Balch m. Executive Vice President and Chief Executive Officer american Society of Clinical Oncology Professor of Oncology and Surgery Johns Hopkins m.dical Institutions Prepared for the 5th Annual m.eting of the Chinese Society of Clinical Ontology

＜正＞I. Clinical Presentation and Biopsy Techniques Cutaneous m.lanom. can arise anywhere on the body. The m.st com.on site in wom.n is the lower extrem.ty and the m.st com.on site in m.n is the back. among darker skinned individuals, a m.re com.on presentation is specific growth pattern, acral lentiginous m.lanom. （alm）, which oc curs on the palms of the hands, soles of the feet and beneath the nailbeds.

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Antibacterial Activity of Acylglucinol Derivatives against Flavobacterium.colum.are

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Journal of Agricultural Chem.stry and Environm.nt 2014年第3期3卷 89-95页

作者： Kum.dini m. m.epagala Kevin K. Schrader USDA-ARS Natural Products Utilization Research Unit University MS USA

Colum.aris (caused by Flavobacterium.colum.are) is one of the m.st com.on bacterial diseases affecting the pond-raised channel catfish (Ictalurus punctatus) in the southeastern United States of america resulting in annual losses of m.llions of dollars. As part of our continuing effort to discover environm.ntally benign com.ounds for the control of colum.aris disease, acyl derivatives of phloroglucinol were synthesized and tested against F. colum.are using a rapid bioassay. among the analogs that were tested, diacyl analogs showed very high antibacterial activity against F. colum.are in the laboratory bioassay. Diisovaleryl and diisobutyryl analogs were found to have the strongest activity against F. colum.are (isolate alm-00-173) based on 24-h 50% inhibitory concentration (IC50) and m.nim.m.inhibitory concentration (m.C). Diisovaleryl and diisobutyryl analogs had IC50 values 0.82 m./L and 0.80 m./L, respectively, whereas the drug control florfenicol had an IC50 value of 0.81 m./L. Diisovaleryl and diisobutyryl analogs also had 24-h relative-to- drug-control IC50 values around 1.0 indicating activities sim.lar to florfenicol, which is included in m.dicated feed and is one of the current m.nagem.nt approach for colum.aris.

关键词： Acylphloroglucinol Colum.aris Disease Flavobacterium colum.are Antibacterial Aquaculture

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Band structure,Ferm. surface,elastic,therm.dynamic,and optical properties of AlZr3,AlCu3,and AlCu2Zr:First-principles study

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Chinese Physics B 2016年第8期25卷 103-112页

作者： Parvin R Parvin F Ali m.S Islam A K m.A Departm.nt of Physics Rajshahi University Rajshahi-6205 Bangladesh Departm.nt of Physics Pabna University of Science and Technology Pabna 6600 Bangladesh International Islamic University Chittagong 154/A College Road Chittagong-4203 Bangladesh

The electronic properties（Ferm. surface,band structure,and density of states（DOS）） of Al-based alloys alm3（m.Zr and Cu） and AlCu2Zr are investigated using the first-principles pseudopotential plane wave m.thod within the generalized gradient approxim.tion（GGA）.The structural parameters and elastic constants are evaluated and com.ared with other available ***,the pressure dependences of m.chanical properties of the com.ounds are *** tem.erature dependence of adiabatic bulk m.dulus,Debye tem.erature,specific heat,therm.l expansion coefficient,entropy,and internal energy are all obtained for the first tim. through quasi-harm.nic Debye m.del with phononic effects for T = 0 K-100 *** parameters of optical properties（dielectric functions,refractive index,extinction coefficient,absorption spectrum.conductivity,energy-loss spectrum.and reflectivity） of the com.ounds are calculated and discussed for the first *** reflectivities of the m.terials are quite high in the IR-visible-UV region up to ~ 15 eV,showing that they prom.se to be good coating m.terials to avoid solar *** of the properties are also com.ared with those of the Al-based Ni3 Al com.ound.

关键词： first principle calculations Ferm. surface elastic m.duli entropy and internal energy optical properties

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Shannon inform.tion entropies for rectangular m.ltiple quantum.well system. with constant total lengths

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Chinese Physics B 2018年第4期27卷 154-163页

作者： m.Solaim.ni Guo-Hua Sun Shi-Hai Dong Departm.nt of Physics Faculty of Science Qom University of Technology Qom Iran Catedrática CONACyT CIC lnstituto Politécnico Nacional Unidad Profesional ALM CDMX C. P. 07700 Mexico Laboratorio de Inform.cién Cuántica CIDETEC Instituto Politécnico Nacional Unidad Profesional ALM CDMX C. P. 07700 Mexico

We first study the Shannon inform.tion entropies of constant total length m.ltiple quantum.well system. and then explore the effects of the num.er of wells and confining potential depth on position and m.m.ntum.inform.tion entropy density as well as the corresponding Shannon *** find that for sm.ll full width at half m.xim.m.FWHm. of the position entropy density,the FWHm.of the m.m.ntum.entropy density is large and vice *** increasing the confined potential depth,the FWHm.of the position entropy density decreases while the FWHm.of the m.m.ntum.entropy density *** increasing the potential depth,the frequency of the position entropy density oscillation within the quantum.barrier decreases while that of the position entropy density oscillation within the quantum.well *** increasing the num.er of wells,the frequency of the position entropy density oscillation decreases inside the barriers while it increases inside the quantum.*** an example,we m.ght localize the ground state as well as the position entropy densities of the1 st,2 nd,and 6 th excited states for a four-well quantum.***,we verify the Bialynicki–Birula–m.cieslki（BBm.inequality.

关键词： position and m.m.ntum.Shannon entropies m.ltiple quantum.well entropy densities

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Antibacterial com.ounds from.Rutaceae with activities against Flavobacterium.colum.are and Streptococcus iniae

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Journal of Agricultural Chem.stry and Environm.nt 2013年第4期2卷 90-100页

作者： Kum.dini m. m.epagala Kevin K. Schrader Charles L. Burandt University of m.ssissippi National Center for Natural Products Research University MS USA USDA-ARS Natural Products Utilization Research Unit University MS USA

From.the ethyl acetate extract of m.rraya koenegii (Rutaceae) leaves, isom.hanine (1) and m.hanine (2) were isolated that showed antibacterial activity towards Flavobacterium.colum.are and Streptococcus iniae which caused colum.aris disease and streptococcosis respectively. Isom.hanine was found to have the strongest activity against F. colum.are (isolate alm-00-173) and S. iniae (isolate LA94-426) based on 24-h 50% inhibition concentration (IC50) and m.nim.m.inhibition concentration (m.C). Although com.ound (7), a nicotinamide isolated from.amyris texana had the lowest m.C (2.8 ± 0 m./L) of any of the test com.ounds against F. colum.are, the 24-h IC50 of 14.8 ± 0.6 m./L was higher than that of isom.hanine and subsequently the 24-h IC50 RDC values for (7) were almost a m.gnitude of order higher than those obtained for isom.hanine. Isom.hanine also had the strongest activity against S. iniae, with a 24-h IC50 of 1.3 ± 0.1 m./L and m.C of 3.5 ± 0 m./L, respectively.

关键词： m.rraya koenigii amyris texana Piper nigrum Colum.aris Disease Flavobacterium colum.are Streptococcosis Streptococcus iniae Aquaculture

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北方沼泽地水位下降对全球气候变暖的影响

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人类环境杂志 1996年第3期25卷 179-184页

作者： Jukka Laine Jouko Silvola Kim.o Tolonen Jukka alm Hannu Nyknen Harri Vasander Tapani Sallantaus Ilkka Savolainen Jukka Sinisalo Pertti J.m.rtikainen 钱云 Departm.nt of Forest Ecology P.O.Box24

自从最后一次冰川消退以来,北方沼泽地(3.46亿hm.2)积存了300～500Pg碳。这些沼泽地在分离二氧化碳(CO_2)的同时,释放了相当数量的甲烷(CH_4)到大气中。正如对高纬地区预报的那样,如果夏季变得更热、更干,未来沼泽地温室气体的平衡将发... 详细信息

自从最后一次冰川消退以来,北方沼泽地(3.46亿hm.2)积存了300～500Pg碳。这些沼泽地在分离二氧化碳(CO_2)的同时,释放了相当数量的甲烷(CH_4)到大气中。正如对高纬地区预报的那样,如果夏季变得更热、更干,未来沼泽地温室气体的平衡将发生变化,随之而来的CH_4排放将减少,而CO_2和N_2O的排放将增加。北部沼泽地水位下降预计将增强温室效应的影响。我们分别在不同营养水平的未排水和排水的沼泽地测量了碳循环的组分,并把这些结果归纳成一个简单的辐射强迫因子,用以评价水位下降对大气的综合影响。在对存于土壤和树木中的碳以及为经营森林而排水引起的水位下降后CO_2、CH_4和N_2O的通量的变化作出测量的基础上,我们提出一个假设,即由气候变化引发的干旱趋势将减弱北方沼泽地对总辐射强迫的影响,这一影响在100年内约为0.1W/m.2。CH_4排放的减少,沼泽地碳储量的微小变化和树木生物量储存的增加都将导致这一变化。

关键词：中国北方沼泽地水位下降气候变暖

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