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简介：精索静脉曲张在约15%人是在场的，并且，尽管它是男不孕的最通常诊断的原因，有精索静脉曲张的将近三分之二个人仍然保持肥沃。使用象盖住这个领域的可得到的文章一样从在2004和2015之间的以前的元分析获得的当前的证据被决定，在修理前后处理精液分析的话题的最好使随机化的控制文章。二重要元分析象在varicocelectomy前后处理精液分析的话题的另外的文章一样被讨论。证据建议所有精液参数在精索静脉曲张修理以后改善。基于可得到的证据，在与摸得出的精索静脉曲张对待人有一个好处，是清楚的。一个人能期望所有精液参数将在修理以后在3个月以内改善。

简介：Introduction:ARationaleforPeerResponseGroupsPeerresponsegroupshavebecomeacommonsightincompositionclassroomsoverthelasttwentyyears.WhileGere(1987)hasdemonstratedthatpeerresponsegroups,inwhichstudentwritersrespondtooneanother’swriting,havealonganddistinguishedpast,thecurrentuseofsuchgroupsemergedoutofthewidespreadadoptionoftheprocessapproachofthe1960’s,whentheywereadvocatedbyanumberofcompositionpractitioners,includingBruffee(1978;

简介：Aresearchonthathowthetopicofmobility,whichiscompletelydifferentbuttightlyrelevanttospace,providesnewapproachesandmethodssoastopromotethefurtherdevelopmentofgeographicinformationservices,willaccumulatebasicexperiencefordifferenttypesofrelativeinformationsystemsinthewidefieldsoflocationbasedservices.Thispaperanalyzesthemeaningofmobilityandthechangeforgeographicinformationservicemodel,itdescribesthedifferencesandcorrelationbetweenM-GISandtraditionalGIS.Itsetsatechnicalframeworkofgeographicinformationservicesaccordingtomobilecontextandprovidesacasestudy.

简介：China’sstockmarkethasexperiencedmorethan20yearsofdevelopment.Despitetheconceptofvalueinvestmenthasalreadybeenreflectedinstockinvestment,manyinvestors,especiallysmallandmediuminvestors,stilldonotpaymuchattentiontovalueinvestment.Blindnessandspeculativethinkingstillaffectinvestment.Thispaperchoosesthebankingindustryastheanalysisobjectandusestherelativevaluationapproachtoevaluatetheprice-earningsratio(P/Eratio),price-to-bookvalueratio(P/Bratio),andprice-earningstogrowth(PEG)ofthe10listedbanks,thenjudgestheinvestmentvalueofeachbankandfocusesonthevaluationandpricingofthebankingwithrapidgrowth.Basedonthis,thechoiceofvalueinvestmentdecisionsismade,tryingtoprovideademonstrationforinvestorstomakevalueinvestmentdecisions.Finally,itisrecommendedtoinvestinChinaMerchantsBank(CMB),MinshengBank,ShanghaiPudongDevelopmentBank(SPDB),IndustrialandCommercialBankofChina(ICBC),HSBCBank,andBankofChina.ItisnotrecommendedtoinvestinPingAnBank,BankofCommunications,IndustrialBank,andChinaCITICBank.

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简介：TensionsbetweenRussiaandtheWesthavegrownincreasinglyapparentinrecentyears.ThiscanbedemonstratedinMoscow'sideologicalconfrontationswiththeWest,theintensifyingrivalryovermilitarystrategicforce,thefiercegeopoliticalconfrontation,andgravecontentionsoverenergyresourcesbetweenthetwo.Theauthorconcludesthatinshort,risingRussia-UStensionscanhardlyberemedied.Itisamatterofpoliticalsignificancethatmeritscarefulconsiderationbytheinternationalcommunity.

简介：ThispaperattackstheconservatismofgrammarteachinginChina.Ittakestheexampleofteachingnon-restrictiveclausesinEnglishanddemonstratesthatacommunicativeapproachcanandshouldbeappliedeventosuchalinguisticsubject.Aprocedureissuggestedinwhichgroupworkandproblem-solvingactivitiesattempttoraisestudents’awarenessofgrammarproblemsandencouragethemtofindtheirownsolutions.

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简介：Withthedevelopmentofwirelessnetworksandmobilecomputing,moreadvancedapplicationswithcontext-awarenessandadaptabilitytotheirchangingcontextareneeded.However,buildingcontext-awareapplicationsisdifficultduetothelackofadequateinfrastructuresupport.Inthispaper,awebmiddlewarearchitectureforthedevelopmentofcontext-awarenessapplicationsusingnearfieldcommunication(NFC)isproposed.Basedonit,theefficientsupportforacquiring,interpreting,andaccessingcontextisprovided,andtheuser’squalityofexperienceisimproved.Moreover,amobilewebmiddlewareforthetestingandfullrealizationofNFCcontext-awarenessapplicationshasbeendevelopedtogetherwithtwoapplicationexamples.

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简介：LFCisafunctionallanguagebasedonrecursivefunctionsdefinedincontext-freelanguages.Inthispaper,anewpatternmatchingalgorithmforLFCispresented,whichcanrepresentasequenceofpatternsasanintegerbyanencodingmethod.Itisarathersimplemethodandproducesefficientcase-expressionsforpatternmatchingdefinitionsofLFC.Thealgorithmcanalsobeusedforotherfunctionallanguages,butfornestedpatternsitmaybecomecomplicatedandfurtherstudiesareneeded.