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Reporter Genes: A Practical Guide (Meth.ds in Molecular Biology) 1

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Biliary endoscopy in th. management of primary sclerosing ch.langitis and its complications

丛书名： Meth.ds in Molecular Biology 411

2007年

作者： Siobh.n Lough.a and Deborah.h.nderson Ph.lip A. Seymour and Maike Sander Maria Limberis Peter Bell and james M. Wilson Wolfgang J. Weninger and Timoth. J. Moh.n George h. Patterson Karin Edoff james S. Dods and Andrea h. Brand Ch.rles G. Bailey and

ISBN: (纸本)9781588297396

Reporter genes h.ve played, and continue to play, a vital role in many areas of biological research.by providing a ready means for qualitative and quantitative assessment of th. activity of genes and location of gene products in different environments. Th.s book describes practical protocols for experimentation with.th. most useful reporter genes for mammalian systems th.t are available

关键词： Genes Reporter

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Liver Research 2019年第2期3卷 106-117页

作者： Brian M.Fung james h.Tabibian University of California Los Angeles-Olive View Internal Medicine Residency Program SylmarCAUSA Division of Gastroenterology Department of MedicineOlive View-University of California Los Angeles Medical CenterSylmarCAUSA

Primary sclerosing ch.langitis(PSC)is a ch.onic,idiopath.c,ch.lestatic liver disease ch.racterized by inflammation and fibrosis of th. intrah.patic and/or extrah.patic bile *** can affect individuals of all age groups and gender,h.s no establish.d ph.rmacoth.rapy,and is associated with.a variety of neoplastic(***)and non-neoplastic(*** strictures)h.patobiliary *** th.se considerations,endoscopy plays a major role in th. care of patients with.*** th.s review,we discuss and provide updates regarding endoscopic considerations in th. management of h.patobiliary manifestations and complications of *** evidence is limited,we suggest pragmatic approach.s based on currently available data and expert opinion.

关键词： Primary sclerosing ch.langitis(PSC) Biliary tract disease Balloon dilation Ch.langioscopy Dominant stricture Ch.langiocarcinoma(CCA) Endoscopic retrograde ch.langiopancreatograph.(ERCP)

Multiple radial ph.sph.rus segregations in GaAsP core-sh.ll nanowires

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Nano Research 2021年第1期14卷 157-164页

作者： h.Aruni Fonseka Yunyan Zh.ng james A.Gott Rich.rd Beanland h.iyun Liu Ana M.Sanch.z Department of Ph.sics University of WarwickCoventry CV47ALUK Department of Electronic and Electrical Engineering University College LondonLondon WC1E 7JEUK

h.gh.y faceted geometries such.as nanowires are prone toform self-formed features,especially th.se th.t are driven by *** th.se features is important in preventing th.ir formation,understanding th.ir effects on nanowire properties,or engineering th.m for *** elemental segregation lines th.t run along th. radii of th. h.xagonal cross-section h.ve been a common observation in alloy semiconductor ***,in GaAsP nanowires,two additional P rich.bands are formed on eith.r side of th. primary band,resulting in a total of th.ee segregation bands in th. vicinity of th.ee of th. alternating *** bands are less intense th.n th. primary band and th.ir formation can be attributed to th. inclined nanofacets th.t form in th. vicinity of th. *** formation of th. secondary bands requires a h.gh.r composition of P in th. sh.ll,and to be grown under conditions th.t increase th. diffusivity difference between As and ***,it is observed th.t th. primary band can split into two narrow and parallel *** can take place in all six radii,making th. cross sections to h.ve up to a maximum of 18 radial segregation *** controlled growth.th.se features could be exploited to assemble multiple different quantum structures in a new dimension(circumferential direction)with.n nanowires.

关键词： compound semiconductor alloys radial segregations th.ee-fold symmetry surface ch.mical potential

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薄层状介质AVO测量的误差

石油物探译丛 1991年第5期 1-14页

作者： h. W. swan 原余

引言自从当代Ostrander的经典文章发表以来(1984),人们一直把大量注意力放在作为碳氢化合物直接指示的泊松比使用上。一个反射面上泊松比值的变化直接影响到它的P波反射系数,而P波反射系数在叠前资料上是偏移距的函数,它可以展开成关于... 详细信息

引言自从当代Ostrander的经典文章发表以来(1984),人们一直把大量注意力放在作为碳氢化合物直接指示的泊松比使用上。一个反射面上泊松比值的变化直接影响到它的P波反射系数,而P波反射系数在叠前资料上是偏移距的函数,它可以展开成关于入射角的幂级数。相对于包含有更多项的全Zoeppritz响应,这样的幂级数可以达到任意高的精度。在小于临界角时,通常只需二、三项就足够了。第一项系数称为零偏移距反射系数。

关键词：薄层状介质 AVO 测量

Sulph.ric Acid Bake-Leach.Process for th. Treatment of Mixed Copper-Cobalt Oxide Ores

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Journal of Minerals and Materials Ch.racterization and Engineering 2022年第2期10卷 174-184页

作者： Precious Mwamba Jewette h. Masinja james Manch.si Leonard Kabondo Department of Metallurgy and Mineral Processing University of Zambia Lusaka Zambia Metallurgy Department Copperbelt University Kitwe Zambia

A sulph.ric acid bake–leach.meth.d for th. treatment of mixed copper-cobalt oxide minerals was investigated as an alternative to th. reductive leach.ng meth.d. Sulph.ric acid bake-leach.process of th. mixed copper-cobalt oxide ore was carried out by mixing th. sample with.sulph.ric acid followed by baking of th. mixture in a muffle furnace. Baking tests were conducted at different conditions such.as temperature, time, and varying amounts of acid. Th. reacted samples were th.n subjected to water leach.ng at room temperature to determine th. leach.bility of copper and cobalt from th. baked material. Th. dissolutions of copper and cobalt were dependent on acid concentration with.cobalt sh.wing more sensitivity to th. amount of acid. Both.copper and cobalt were extracted from th. baked material with.n sh.rt leach.ng times and with.ut th. addition of reducing agents. Th. outcome of th.s work h.s sh.wn th.t th. sulph.ric acid bake-leach.process is a possible alternative to th. reductive leach.ng meth.d for copper-cobalt oxide ores.

关键词： Democratic Republic of Congo (DRC) Mixed Copper-Cobalt Oxide Sulph.ric Acid Baking Sulph.te Reducing Agent Metal Dissolution

On th. electrical conductivity of alginate h.drogels

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Regenerative Biomaterials 2018年第5期5卷 293-301页

作者： Georgia Kaklamani Diana Kazaryan james Bowen Fabrice Iacovella Spiros h.Anastasiadis George Deligeorgis Institute of Electronic Structure&Laser Foundation for Research&Technology HellasP.O.Box 138571110 HeraklionCreteGreece Sch.ol of Engineering and Innovation The Open UniversityMilton Keynes MK76AAUK Department of Ch.mistry University of CreteP.O.Box 220871003 HeraklionCreteGreece

h.drogels h.ve been extensively used in th. field of biomedical applications,offering customizable natural,synth.tic or h.brid materials,particularly relevant in th. field of tissue *** th. bioelectronics discipline,h.drogels are promising mainly as sensing platforms with.or with.ut encapsulated cells,sh.wing great potential in h.alth.are and ***,to date th.re is little data in th. literature wh.ch.ch.racterizes th. electrical properties of tissue engineering materials wh.ch.are relevant to *** th.s work,we present electrical ch.racterization of alginate h.drogels,a natural polysacch.ride,using a four-probe meth.d similar to electrical impedance *** acquired conductance data sh.w distinct frequency-dependent features th.t ch.nge as a function of alginate and crosslinker concentration reflecting ion kinetics inside th. measured ***,th. presence of NIh.3T3 fibroblasts encapsulated in th. h.drogels matrix was found to alter th. artificial tissue’s electrical *** meth.d used provides valuable insigh. to th. frequency-dependent electrical response of th. resulting *** is h.ped th.t th. outcome of th.s research.will be of use in th. development of cell/electronic interfaces,possibly toward diagnostic biosensors and th.rapeutic bioelectronics.

关键词： alginate bioelectronics conductivity h.drogel polysacch.ride resistance fibroblasts

Tree Population Dynamics of Th.ee Altitudinal Vegetation Communities on Mount Cameroon(1989-2004)

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Journal of Mountain Science 2011年第4期8卷 495-504页

作者： Ph.lip F.FORBOSEh.Terry C.h.SUNDERLAND james A.COMISKEY Mich.el BALINGA Plan Cameroon P O Box 25236 MessaYaoundéCameroon Centre for International Forestry Research.CIFOR) Inventory and Monitoring Program National Park Service120 Chatham Lane Smith.onian Institution S.Dillon Ripley Center1100 JeffersonDrive SW Washington DC 20560USA Center for International Forestry Research.CIFOR)

Ch.nges in permanent sample plots in th. lowland,submontane and montane forests on Mount Cameroon(4,095 m above sea level),an active volcano,are described for 15 years from 1989 to *** th. study period,th. stocking level of trees with.a diameter at breast h.igh.(DBh. ≥ 10 cm in th. th.ee forests were lower th.n in pan-tropical stands suggesting a significant impact of volcanic and h.man-related activities on th. vegetation communities on th. *** mortality rates in th. submontane and montane forests were consistent with.th.se reported for comparable altitudinal ranges in th. Blue Mountains of *** annual mortality rate was h.gh.r in th. lowland forest th.n oth.r lowland sites *** between recruitment and mortality rates was large suggesting th.t th. th.ee vegetation communities h.ve not reach.d th.ir *** seven-year difference in h.lf-life of large trees(with.a DBh.≥ 50 cm) in th. submontane and montane forests suggests an altitudinal effect on turnover of larger trees th.t in turn contributes to th. frequent small stature of h.gh.altitude *** was little evidence of an altitudinal effect on species turnover and growth.*** finding supports generalizations about th. zero effect of growth.on th. stature of h.gh.altitude *** forest dynamics is crucially important in th. management of tropical montane environmentsand in th.s instance particularly so given th. recent creation of th. Mount Cameroon National Park.

关键词： Growth.rates Recruitment Mortality Altitude h.lf-life Mount Cameroon

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DSP first

h.gh.y efficient GaAs solar cells by limiting ligh. emission angle

1998年

作者： McClellan james h.

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Ligh.(Science & Applications) 2013年第1期2卷 236-241页

作者： Emily D Kosten Jackson h.Atwater james Parsons Albert Polman h.rry A Atwater Th.mas J.Watson Laboratories of Applied Ph.sics California Institute of TechnologyPasadenaCA 91125 USA Center for Nanoph.tonics FOM-Institute AMOLFScience Park 1041098XG AmsterdamThe Netherlands

In a conventional flat plate solar cell under direct sunligh.,ligh. is received from th. solar disk,but is re-emitted *** isotropic emission corresponds to a significant entropy increase in th. solar cell,with.a corresponding drop in ***,using a detailed balance model,we sh.w th.t limiting th. emission angle of a h.gh.quality GaAs solar cell is a feasible route to ach.eving power conversion efficiencies above 38%with.a single *** h.gh.st efficiencies are predicted for a th.n,ligh. trapping cell with.an ideal back reflector,th.ugh.th. sch.me is robust to a non-ideal back *** with.a conventional planar cell geometry illustrates th.t limiting emission angle in a ligh. trapping geometry not only allows for much.th.nner cells,but also for significantly h.gh.r overall efficiencies with.an excellent rear ***,we present ray-tracing and detailed balance analysis of two angular coupler designs,sh.w th.t significant efficiency improvements are possible with.th.se couplers,and demonstrate initial fabrication of one coupler design.

关键词： detailed balance GaAs solar cell ligh. trapping ph.tovoltaics two ph.ton lith.graph.