45 research outputs found

    Dell and HP Coperation Financial Analysis and Enterprise Valuation

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    自一开始IBM将标准开放给微软及英特尔后,行业利润被Wintel联盟所获取,PC行业成为了一个低利润的行业。随着2010年Apple发布iPad,平板电脑对传统PC产生严重威胁,导致PC行业的销量下滑。 惠普公司和戴尔公司是两家典型的美国PC制造商,其业务的覆盖地区与业务类型非常相近。随着PC行业持续下滑,两家公司的前景如何,企业价值与市场价值是否有较大差距,哪家公司可能有更高的企业价值。本文试图通过对两家公司财务数据的分析比较,财务预测,以及不同的价值评估方法来进行相关的研究。写本文的意义一是提供了IT行业的价值评估文献,二是为为相关投资人士了解两家公司的前景并做出投资决策提供参考。 具...Since IBM published the PC standard to Microsoft and Intel, PC industry became an industry with low margin. When Apple released iPad in 2010, tablet PC caused significant impact on traditional PC business, the volume of PC shipment decreased. HP and Dell Inc are two typical US-based PC providers, and they have similar global coverage and business offering. Under the circumstance of PC industry ...学位:工程管理硕士院系专业:管理学院_工商管理硕士(MBA)学号:1792009115080

    Kiinteän oikomiskojeen rakentaminen ja purkaminen sekä oikomiskojeen puhdistaminen : opetusvideo simulaatio-opetukseen

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    Suuhygienistin ortodontiaan liittyvät työtehtävät ovat lisääntyneet. Ortodontialla tarkoitetaan hammaslääketieteellistä alaa, jossa on kyse hampaan suoristamisesta ja siirtämisestä sekä leukojen kasvun ja purennan kehityksen kokonaisvaltaisesta ohjaamisesta. Suuhygienistin ortodontisiin työtehtäviin kuuluvat kiinteän kojeistuksen rakentaminen, puhdistaminen sekä purkaminen. Opinnäytetyön tarkoituksena oli tuottaa opetusvideo kiinteän oikomiskojeen rakentamisesta, puhdistuksesta sekä purkamisesta. Tavoitteena oli luoda suuhygienistiopiskelijoiden ortodontista osaamista kehittävä opetusmateriaali simulaatiotilanteessa tapahtuvaa opetusta varten. Tavoitteena oli myös samalla kehittää ortodontiaan liittyvää simulaatio-opetustilannetta videomateriaalin avulla. Opinnäytetyö toteutettiin toiminnallisena opinnäytetyönä, joka koostuu teoreettisesta viitekehyksestä ja tuotoksesta eli opetusvideosta. Opinnäytetyön teoreettinen viitekehys koostuu kiinteän kojeistuksen rakentamisen, purkamisen sekä puhdistuksen ajankohtaisesta tietoperustasta. Teoreettisessa viitekehyksessä on käsitelty myös toiminnallisen opinnäytetyön toteuttamista sekä hyvän opetusvideon kriteerejä ja tekoprosessia. Opetusvideo sisältää kiinteän kojeistuksen rakentamiseen ja purkamiseen liittyvät työvaiheet demonstroituna sekä ääneen opastettuna. Lisäksi videolla demonstroidaan kiinteän kojeistuksen puhdistus sähkö- ja manuaalihammasharjalla, siltaneulalla ja hammaslangalla sekä hammasväliharjalla. Opinnäytetyön tuotoksena kehitettiin suuhygienistiopiskelijoiden ortodontista käytännön osaamista tukeva videomateriaali. Videomateriaali kuvattiin Turun ammattikorkeakoulun tiloja ja simulaatio-opetuskalloa sekä -välineitä käyttäen. Video luovutetaan Turun ammattikorkeakoulun suuhygienistikoulutuksen opetuskäyttöön USB-muistitikulle ladattuna ja tallennetaan Turun ammattikorkeakoulun sähköiseen oppimisympäristöön Optimaan.Dental hygienists’ orthodontics-related tasks have increased. Orthodontics refers to a field of dentistry that deals with straightening and moving teeth as well as the overall control of the growth of the jaws and the development of occlusion. The orthodontic tasks that are carried out by a dental hygienist include the construction, cleaning and removing of a fixed appliance. The purpose of this thesis was to produce an educational video on the construction, cleaning and removing of a fixed orthodontic appliance. The aim was to create teaching material for Turku University of Applied Sciences that would support the learning of dental hygienist students on the topic of orthodontics in simulation-based training. The functional consists of the theoretical framework and an educational video as a result. The theoretical framework consists of up-to-date information of the construction, removing and cleaning of a fixed appliance. In the theoretical framework there has been described the research method and the criteria and the process of making an educational video are also discussed. The video contains demonstrated stages of constructing, removing and cleaning of a fixed orthodontic appliance. It also contains demonstrations of cleaning a fixed orthodontic appliance with electrical and manual toothbrush and interdental equipment. Video material was created to support dental hygienist students’ learning of orthodontics. The video has been downloaded on an USB memory Stick and it will be transferred to use of dental hygienist programme of Turku University of Applied Sciences. The video is also saved in the electronic learning platform Optima

    ONE NEW SPECIES AND ONE NEW RECORD SPECIES of EIRENIDAE FROM THE TAIW AN STRAIT,CHINA

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    记述了采自台湾海峡软水母亚纲lEPTOMEduSAE HAECkEl,1866、和平水母科EIrEnIdAE HAECkEl,1879 1新种,无疣杯水母PHIAlOPSIS AVErruCIfOrMIS SP.nOV.和我国海域1新纪录种,母芽侧丝水母HElgICIrrHA MEduSIfErA(bIgElOW,1909),对其形态特征进行描述。模式标本保存于国家海洋局第三海洋研究所。The samples of Eirenidae were collected from the Taiw an Strait,China( 20.85°- 27.06° N,114.92°- 121.24°E) during July 2006 and Jan.2007.One new species of Phialopsis averruciformis sp.nov.and one new record species of Helgicirrha medusifera( Bigelow,1909) are described in the present paper based on the type specimens from the T aiw an Strait,China.The specific diagnosis of the new species is as follows.我国近海海洋综合调查与评价(908专项)(908-ZC-Ⅱ-02;908-01-BC07;908-02-0102;908专项海洋生物样品库); 国家海洋局“全球变化与海气相互作用专项”资助~

    DESCRIPTIONS of ONE NEW GENUS AND TWO NEW SPECIES of HYDROIDOMEDUSAE FROM TAIWAN STRAIT

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    记述台湾海峡生物综合调查区水螅水母纲1新属2新种,即花水母亚纲面具水母科台湾似内胞水母PArAEuPHySIllA TAIWAnEnSIS Xu,HuAng ET guO,gEn.nOV.ET SP.nOV.与软水母亚纲多管水母科平枝多管水母zygOCAnnA PlAnATuS Xu,HuAng ET WAng,SP.nOV.。此外,还报道了1种黑圆口水母STOMOTOCA ATrA l.AgASSIz,1862在我国海域首次记录。模式标本保存在国家海洋局第三海洋研究所。The Hydroidomedusae were collected from Taiwan Strait (20°51′-27°03′N, 114°55′-121°14′E) during July 2006 and Jan.2007.Two new taxa Paraeuphysilla taiwanensis gen.nov.et sp.nov.and Zygocanna planatus sp.nov.are described.Stomotoca atra L.Agassiz, 1862 is a new record for Chinese waters.supportedbytheChineseOffshoreInvestigationandAssessmentundercontract(908-ZC-Ⅱ-02);theNationalBasicResearchProgramofScienceandTechnologyofChinaundercontract(2006FY220700);PublicScienceandTechnologyResearchFundsProjectsofOceanundercontract(201005015

    Quantification of Methylation at CMV Promoter of pEGFP-C3 Vector by Gradient Touch-Down PCR Sequencing

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    目的改进亚硫酸氢钠测序法,并在CMV基因启动子甲基化检测中进行验证。方法提取PEgfP-C3质粒重组人肝癌细胞株HEPg2 dnA,亚硫酸氢钠化学修饰,针对修饰后质粒基因CMV启动子序列设计特异引物并结合梯度降落PCr扩增,T-A载体克隆、测序,目标区域甲基化定量。结果 PEgfP-C3质粒基因约600bP的CMV启动子区甲基化水平可以精确定量,检测结果与标准品一致,重复测量结果稳定。结论改进后亚硫酸氢钠测序法能明显减少非特异性扩增,提高PCr效率,更适于基因甲基化状态的检测。Objective To improve the sodium bisulfite sequencing method and validate it in quantification of methylation in CMV promoter.Methods DNA was extracted from recombinant HepG2 hepatoma cell line with plasmid pEGFP-C3,and chemically modified with sodium bisulfite,the gene-specific primers were designed according to the modified CMV promoter sequence and conducted PCR amplification with gradient touch-down PCR,then the DNA methylation level in the target areas was quantitated after T-A cloning and sequencing.Results The DNA methylation level of the 600 bp CMV promoter within pEGFPC3 plasmid could be quantified accurately,and be consistent with that of the methylated DNA standards,repeated measurements indicated stable quantification result with this method.Conclusion The improved sodium bisulfite sequencing method can reduce non-specific amplification significantly and improve PCR efficiency,therefore has more potential for quantitative detection of gene methylation status.国家自然科学基金资助项目(20907047);中央级公益性科研院所基本科研业务专项(2008KYYW05

    ONE NEW GENUS,TWO NEW SPECIES AND ONE NEW RECORD of CORYMORPHIDAE FROM THE SOUTH CHINA SEA(ANTHOMEDUSAE,CAPITATA)

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    记述了采自南海的棒状水母科COryMOrPHIdAE AllMAn,18721新属,肋突水母属COSTA HuAng,Xu ET lIn,gEn.nOV.,2新种,即南海肋突水母COSTA nAnHAIEnSIS HuAng,Xu ET lIn,SP.nOV.,间腺梅尔水母MAyErI InTErgOnA HuAng,Xu ET guO,SP.nOV.和1新纪录种,幼芽真囊水母EuPHySOrA gEMMIfErA bOuIllOn,1978。详细描述其形态特征,并绘图与本属其它种进行比较,模式标本保存于国家海洋局第三海洋研究所。Samples of Corymorphidae were collected from the South China Sea(4°-18° 30' N,109° 119°E),during Aug.2011.Based on the taxonomic system of Bouillon et al.(2006),at present time 12 valid genera of Corymorphidae are known,Euphysora M aas,1905 and Vannuccia Brinckmann-Voss,1967 are valid genera.In view of the used of the genus name of Vannuccia M arcus,1948,we wish to make the proposal of which the genus name of Vannuccia BrinckmannVoss,1967 is change to that of Mayeri Xu,Huang et Guo,gen.nov.,remembering the first author for the species of the genus.One new genus,Costa Huang,Xu et Lin,gen.nov.,two new species,i.e.Costa nanhaiensis Huang,Xu et Lin,sp.nov.,Mayeri intergona Huang,Xu et Guo,sp.nov.and one new record,Euphysora gemmifera Bouillon,1978 are described.All type specimens are deposited in the T hird Institute of Oceanography,SOA.T he specific diagnoses of one new genus and two new species are as follows.Costa Huang,Xu et Lin,gen.nov.Umberlla dome-shaped,exumbrella with 4 longitudinal ridges and ribs;manubrium large,the length no extending umbrella margin;mouth simple,circular;one well-developed solid tentacle terminating in large cnidocyst knob,3 marginal bulbs without tentacles;4 radial canals,1 circular canal;with mesenteries.T ype species:Costa nanhaiensis Huang,Xu et Lin,sp.nov.Etymology.T he genus name from Latin Costa,means rib and ridge,the new genus exumbrella with 4 longitudinal ridges and ribs.Costa nanhaiensis Huang,Xu et Lin,sp.nov.(Figs 1-2) Umbrella dome-shaped,exumbrella with 4 longitudinal ridges and ribs;manubrium large,extending no beyond umbrella margin,vacuolated endodermal cells in the upper part,gonads in the lower part;one well-developed solid tentacle terminating in two large cnidocyst knobs;3 marginal bulbs without tentacles;4 radial canal,1 circular canal;with mesenteries.Etymology.Form Latin,Nanhaiensis,means Nanhai,the species name refers to the first collected from Nanhai(the South China Sea).Mayeri intergona Huang,Xu et Guo,sp.nov.(Figs 3-4) Umbrella dome-shaped,without apical process,bell margin slightly asymmetrical;manubrium short,length about 1 /3 of the umbrella cavity,with a apical chamber;gonads global shaped,in interradial position of manubrium;one swollen marginal tentacle,hollow for half its length and ending in long,large,clubshaped swelling armed with cnidocysts.我国近海海洋综合调查与评价(908专项);“中国海洋生物种类名录和图谱”(908-ZC-Ⅱ-02);“908专项海洋生物样品库”和“全球变化与海气相互作用专项”资助---

    TWO NEW SPECIES of THE GENUS NUBIELLA FROM THE SOUTH CHINA SEA(FILIFERA,BOUGAINVILLIDAE)

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    记述了采自南海花水母亚纲AnTHOMEduSAE HAECkEl,1879、丝螅水母目fIlIfErA küHn,1913、高手水母科bOugAIn VIllIdAE lüTkEn,1850、单肢水母属nubIEllA bOuIllOn,19802新种,即球形单肢水母n. glObOSA lIn,Xu ET HuAng,SP.nOV.和球腺单肢水母n. glObOgOnA WAng,guO ET XuE,SP.nOV.,对新种特征进行了绘图和描述。模式标本保存于国家海洋局第三海洋研究所。Samples of Nubiella were collected from the South China Sea(4°-18° 30' N,109°-119° E) during Aug.2011.T wo new species of Nubiella i.e.N.globosa Lin,Xu et Huang,sp.nov.and N.globogona W ang,Guo et Xue,sp.nov.are described.All type specimens are deposited in the T hird Institute of Oceanography,SOA.T he specific diagnoses of two new species are as follow.Nubiella globosa Lin,Xu et Huang,sp.nov.(Figs 1-2) Umbrella global-shaped,without apical projection,exumbrella without scattered cnidocysts;without gastric peduncle and oral tube;gonads on interradial region of manubrium;with 4 unbranched oral tentacles;4 radial canals thin;4 tentacular bulbs global-shaped,without dense masses;4 marginal tentacles rather short with ring cnidocysts.Nubiella globogona Wang,Guo et Xue,sp.nov.(Figs 3-4) Umbrella bell-shaped,without apical projection,exumbrella with scattered cnidocysts;manubrium cylindrical-shaped,with apical chamber;mouth simple,circular;with 12 unbranched oral tentacles;gonads globular-shaped on media interradial region of manubrium;4 marginal tentacles,tentacular bulbs with black pigments.我国近海海洋综合调查与评价(908专项);“中国海洋生物种类名录和图谱”(908-ZC-Ⅱ-02);“908专项海洋生物样品库”和“全球变化与海气相互作用专项”资助---

    TWO NEW SPECIES of ANTHOMEDUSAE FROM THE BITUNG STRAIT,INDONESIA (CNIDARIA)

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    材料于2012年6月在印度尼西亚比通海峡水域采集,调查区共设19站,经对38份样品分析,鉴定出48种水母,其中有2个花水母新种:幼芽伪帽水母PSEudOTIArA gEMMIfErA lIn,XuETHuAng,SP.nOV.和比通真囊水母EuPHySOrA bITungEnSIS Xu,HuAngET guO,SP.nOV.,对新种形态特征进行了绘图和描述,并讨论其与同属其它种主要特征的比较。模式标本保存于国家海洋局第三海洋研究所。Samples of Hydroidomedusa were collected from the Bitung Strait,Indonesia Sea (1.35°-1.50°N,125.10°-125.26°E),during June 2012.Through the analysis of 38 samples,two new species of Anthomedusae are found,i.e.Pseudotiara gemmifera Lin,Xu et Huang,sp.nov.and Euphysora bitungensis Xu,Huang et Guo,sp.nov.All type speciemens are deposited in the Third Institute of Oceanography,SOA.The specific diagnoses of four new species are as follows.Pseudotiara gemmifera Lin,Xu et Huang,sp.nov.(Figs 2-3,5-7) At present time,two species are known in genus Pseudotiara Bouillon,1980.This new species is closed to P.tropica (Bigelow,1912),but differs from them by:1) mouth cruciform,with 4 small lips;2) manubrium short,one-quarter of the bell cavity,conical,cruciform in section,with 4 perradial lobes along the course of the radial canals;3) 4 longitudinal medusa-buds on perradial position of manubrium,extending from the upper 2/3 of the manubrium toward perradial lobes.Etymology.From the Latin gemmifera,meaning gemmifer.The species name refers to the medusa-buds on the perradial positions of the manubrium and lobes.Euphysora bitungensis Xu,Huang et Guo,sp.nov.(Figs 4,8) The new species has 3 rudimentary tentacles and 1 long principal tentacle that differ from others not only in size,but also in structures.These features place this medusa in the family Corymorphidae Allman,1872,genus Euphysora Maas,1905 (Bouillon et al.,2006).Only 24 valid species of Euphysora are known (Huang,1999;Bouillon & Boero,2000;Xu & Huang,2003,2006;Bouillon et al.,2006;Du et al.,2012).This new species can be distinguished from the other species of Euphysora by moniliform tentacles has only ring cnidocysts,which is similar to Euphysora solidonema Huang,1999 and E.annulata Kramp,1928,but differs from them by:1) umbrella with apical projection and apical canal;2) all marginal bulbs without extending to both lateral sides;3) moniliform principal tentacles with a large terminal nematocyst knob;4) manubrium cylindrical about two-thirds as long as the bell cavity;5) three other perradial bulbs without a short filiform tentacles.Etymology.From the Latin bitungensis,referring to the first collected type specimen from the Bitung Strait.中-印尼海洋生态站建设及热带典型海洋生态系统生物多样性研究~

    TW O NEW SPECIES of LEPTOMEDUSAE FROM THE BITUNG STRAIT,INDONESIA (CNIDARIA)

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    材料系于2012年6月在印度尼西亚比通海峡水域采集,调查区共设19站,经对38份样品分析,鉴定出48种水母,其中有软水母2新种:五辐和平水母EIrEnE PEnTAnEMAlIS lIn,Xu ET HuAng,SP.nOV.和多石触丝水母lOVEnEllA POlyCOnCrETuS X u,HuAng ET g uO,SP.nOV.,对新种形态特征进行了绘图和描述,并讨论其与同属其它种主要特征的比较。模式标本保存于国家海洋局第三海洋研究所。Samples of Hydroidomedusa w ere collected from the Bitung Strait, Indonesia Sea( 1.35°-1.50°N,125.10°- 125.26° E),during June 2012.Through the analysis of 38 samples,tw o new species of Leptomedusae are described,i.e.Eirene pentanemalis Lin,X u et Huang,sp.nov.and Lovenella polyconcretus X u,Huang et Guo,sp.nov.All type specimens are deposited in the Third Institute of O ceanography,SO A.The specific diagnoses of two new species are as follows.中-印尼海洋生态站建设及热带典型海洋生态系统生物多样性研究~

    Zooplanktonic diversity in the western Pacific

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    西太平洋区是全球海洋生物种源中心,许多类群的最高物种多样性都出现于该区域,因此,在该区开展种类多样性的研究不仅重要和必要,而且具有在跨国尺度上进行综合管理和相互合作的迫切性。本文在西太平洋的浮游动物样品鉴定分类、编目、文献资料整理和分析的基础上,记录和编入西太平洋10个浮游动物类群2,658种(含亚种),隶属于206科675属,其中水螅水母类99科251属697种,栉水母类12科22属59种,浮游软体动物14科35属86种,介形类8科89属416种,桡足类51科156属908种,糠虾类4科58属202种,磷虾类2科8属56种,十足类8科22属105种,毛颚类5科8属48种,被囊类5科26属81种。The western Pacific region has been operating as a centre for the origin of marine biodiversity: the richest diversity of many marine taxa was found in these waters.Therefore,biodiversity research and con-servation efforts in this area are necessary in order to promote the integrative and international management of this resource.The present work is a compilation of numbers of all the families,genera and species of ma-jor taxa of zooplankton known in the western Pacific Ocean(106°–150°E,0°–44°N).In all,2,658 zooplank-tonic species(including subspecies) belonging to 206 families and 675 genera have been recorded from taxonomic identifications and literature,99 families,251 genera and 697 species belong to the Medusozoa,12 families,22 genera and 59 species to the Ctenophora,14 families,35 genera and 86 species to the pelagic Molluscs(Pteropoda and Heteropoda),8 families,89 genera and 416 species to the Ostracoda,51 families,156 genera and 908 species to the Copepoda,4 families,58 genera and 202 species to the Mysidcea,2 fami-lies,8 genera and 56 species to the Euphausiacea,8 families,22 genera and 105 species to the Decapoda,5 families,8 genera and 48 species to the Chaetognatha,5 families,26 genera and 81 species to the Tunicata.908专项“中国海洋生物种类名录和图谱”(908-ZC-II-02)和908专项海洋生物样品库;科技部基础工作专项“我国和邻近西北太平洋海洋生物物种编目和分布图集编制”(2006FY220700
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