简介：Theecotourismisacombinationofpopularizingecological,scientificknowledgeandincreasingthenation'sawarenessofprotectionofnature.Therefore,itisabetterformfornationalforestparksandnaturereservestofullypublicizethenecessityofenvironmentalprotection.Thecombinationofecologywithtourismisthecurrentworld-developingtendency.

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简介：IntroductionErrorsareunavoidableinlanguagelearning,however,toagreatextent,teachersinmostmiddleschoolsinChinaregarderrorsasundesirable,asignoffailureinlanguagelearning.Mostmiddleschoolsarestillusingthegrammar-translationmethodwhichaimsatencouragingstudentstoreadscientificworksandenjoyliteraryworks.Theothergoalsofthismethodaretogainagreaterunderstandingofthefirstlanguageandtoimprovethestudents’abilitytocopewithdifficultsubjectsandmaterials,i.e.todevelopthestudents’minds.Thepracticalpurposeofusingthismethodistohelplearnerspasstheannualentranceexamination."Toachievethesegoals,thestudentsmustfirstlearngrammarandvocabulary,...Grammaristaughtdeductivelybymeansoflongandelaborateexplanations...studentslearntherulesofthelanguageratherthanitsuse."(TangLixing,1983:11-12)

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简介：Asenormoustransformationistakingplaceinthewholeworldbecauseoftheinfluenceofeconomyglo-balization,businessandtradeareinevitablybecomingafractionoftheglobalizationwhichresultsintheinternationali-zationoftrademarks.Hence,translationofthetrademarksisalsoturningouttobeofimportanceintheexchangeofbotheconomyandculture.Thispaperaddressestheprinciplesofthetranslationoftrademarks.Italsopointedoutthatsuccessmodeloftranslatingliesincateringforthetargetmarketaestheticinterest,reflectingitstraditionalcul-turevalue,takinginitscultureessenceandfollowingitsculturefashion.Thisresearchaimsatachievingabetterun-derstandingofbrandnametranslationprocessandcanhelptoovercometheculturalbarrierstosuccessfultranslationsofbrand.

简介：被S.Wolfram首先提出的细胞的自动机的限制语言复杂性成为了细胞的自动机的一个新分支。在这篇论文，我们获得在规则的基本细胞的自动机之间的二种有趣的关系126，146(182)并且18，并且如果统治18的限制语言不是常规的，证明那，也不是规则的限制语言126和146(182)。

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简介：'Left-behindchildren'arechildrenwhohaveoneparentorbothparentsworkinginanothercitywhilethechildrenstayinthevillage.Thesechildrenusuallylivewitheitheroneoftheirparents,relativesorfamilyfriends.Researchshowsthatthereareover58millionleft-behindchildreninChina;57.2percentofthemhaveoneparentworkinginanothercity,42.8percentofthechildrenhavebothparentsworkinginanothercity,79.7percentareraisedbytheirgrandparents,13percentoftheleft-behindchildrenareraisedbyrelativesorfriends,7.3percentofthesechildrenareraisedwithoutaguardianorinformationaboutthemisuncertain.AstheChineseeconomyprospers,working-ageadultsfromvillagesincreasinglychoosetoworkincitieswithleft-behindchildrenaspecialpopulationthatrequiresspecialattentioninChinesevillageeducation.Socialresearcherswarnthatleft-behindchildrenarenotonlyaproblemforfamiliesbutasocialproblem.TheeducationprograminLinziElementarySchool,RugaoCity,JiangsuProvincehasraisedawarenessofleft-behindchildren'seducation.Theschool's'Left-behindChildren'33433'LinziModel'isnowpopularinthecountryandfollowedbymanyelementaryschools.ThisschoolisnowamajorexperimentalelementaryschoolundertheUnitedNationsInternationalChildren'sEmergencyFund(UNICEF)caringforleft-behindchildren.

简介：Inthestudyathand,theimageofanelementaryschoolteacherinpublicshallbeanalyzedindetail：his/herreputation,characteristics,andtrustinhim/her.Especiallytheimageofelementaryschoolteachersshallbeconsidered.Thisinvestigationdealswiththequestion＂Whymenmainlyteachatsecondaryschools＂.Areasonforthiscouldthebadimageandtheappreciationtowardselementaryschoolteachersinsociety.Tocounterthesetendencies,measureshavebeentaken,likeBoy＇sDays,tomaketheelementaryschoolmoreattractiveformen,tooWiththehelpofpolarityprofilesanddistancescales,theimagesofmaleandfemaleelementaryschoolteachersarecompared.Theresultsshowthattheimageofelementaryschoolteachersisoverallpositivelyrated,butmenworkingatelementaryschoolsareimputedtoshowalternativebehaviorandfemalecharacteristics.Furtherresearchandimplicationforactingarenecessarytofindoutwhatrelationshipsexistbetweentheimageandthechoiceofprofessionofelementaryschoolteacherstotakeeffectivemainstreammeasures.

简介：Characterizationsforelementaryoperatorsoflength2tobeinvertibility-preserving,apectrum-preservingorspectrurn-compressingareobtained.

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简介：Theglobalmeantemperaturesoftheatmosphereandthesurfaceofvariousplanetsofthesolarsystemaredeter-minedbytakingthesystemasinradiativeequilibrium,withtheatmospheretakenastransparenttosolarradiationbutwithanalbedoα,andcomposedofNlayerseachofwhichabsorbsallinfraredradiationthatfallsonit,andatoplayerofpartialabsorptivitya,whilethesurfaceistakenasblack.Itisfoundthat,fortheearth’satmospherewithα=0.33,N=0,a=0.83,itgivesthecurrentobservedmeansurfacetemperatureT_s=15℃andtheeffectivemeanradiativetemper-atureoftheatmosphereT_a=242.6K.Ontheotherhand;theatmosphereofVenusischaracterizedbyα=0.70andN=70,whichyieldsasurfacetemperatureofabout700K.Itisalsofoundthatsurfaceevaporationandabsorptionofsolarradiationbytheatmospheretendtolowerthesur-facetemperature.

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简介：TotesttheantigenicactivityofMprotein(Mcprotein)intheinnermembraneofSARS-CoV,SARS-CoVMcprotein'sbaseslocatinginsidethemembranewerecloned,theHis-fusionproteinwasexpressedinE.coliandanalyzedforitsantigenicactivity.Amongthose7clinicallydiagnosedpatients'sera,therewere5positiveand2negativeinreactionwithHis-fusionprotein.Allofthe20healthypersons'seraandrabbitanti-OC43and229EwereofnegativereactionwithHis-fusionprotein.TheanimalsimmunizedwithHis-fusionproteinhaveproducedmulti-clonalantibody.TheHis-fusionproteincouldspeciallyreactwithclinicallydiagnosedSARSpatients'seraandtheanimalsimmunizedwithHis-fusionproteincouldproducespecificallymulti-clonalantibody,butitcouldnotreactwiththeseraofhealthypersonsandtherabbitanti-OC43and229E.

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