- Butthiswaslargelyareflectionofpopulationsize.Ifyouarereferringtopopulationsize,however,thatisthesizeofasmallcity.Forreasonsofmathematicalpurity,theyallassumedaninfinitepopulationsize.Effectivepopulationsizeandbreedersselectionmannersaffecttheeffectof...
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- ObjectiveTodeterminetheinfectionstatusandimmunitylevelofepidemiccerebrospinalmeningitisinsusceptiblepopulationinHefeibasedonimmunoserologicalsurveillance.Inagivenarea,theworstwillusuallybeoverinfourtosixweeksasthevirusrushesthroughasusceptiblepopulat...
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- Taxpenaltiesforthosewhohavefamilieswithmorethanadesignatednumberofchildrentodiscourageexcesspopulationgrowth.Agricultureprovidedamoredependablesourceoffood,causingpopulationstoincrease;eventuallyexcesspopulationmigratedtonewlands....
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- 问题详情:图*是“PPE怪圈”,是指贫困(Poverty)、人口(Population)和环境(Environment)之间形成的互为因果的关系。图乙为不同国家人口增长示意图,阅读材料,回答下列各题。52.图乙的①、②、③、④四个国家中,最有可能产生“PPE怪圈”的是()A.① B.② ...
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- NutritionstatusanditsinfluentialfactorsamongruralelderlypopulationThehealth,burdenandhomecareofChinaelderlypopulation;Nevadahasthefastest-growingelderlypopulationofanystate.Epidemiologyofcervicalosteoarthritisinmiddle-agedandelderlypopulationinsixcit...
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- 问题详情:下图是“PPE怪圈”,是指贫困(Poverty)、人口(Population)和环境(Environment)之间形成的一种互为因果的关系。阅读“PPE怪圈”材料,图中的a、b、c、d四点所代表人口增长状况中,最有可能产生“PPE怪圈”的是A.a B...
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- 问题详情: “PPE怪圈”是指贫穷(Poverty)、人口(Population)和环境(Environment)之间形成一种互为因果的关系,如下图所示,读图完成29-30题。29.上图中,a、b、c、d四点代表的人口增长状况中最有可能形成“PPE怪圈”的是A.a B.b C.c ...
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- Thenumberofyellowfevercaseshasincreasedoverthepasttwodecadesduetodecliningpopulationimmunitytoinfection,deforestation,urbanization,populationmovementsandclimatechange.AsJapancopeswithadecliningpopulation,universitiesaretryingtoattractanincreasinglyin...
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- occupationalcompositionofemployedpopulationdepartmentalcompositionofemployedpopulationItisperhapssurprisingtoarguethatanemployedpopulationcouldbeenticedtomove,butanexplanationliesinthelaborconditionsthenprevalentintheSouth.Itconcludedthattheeffectisp...
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- Intheensuingchaoticdecades,theindigenouspopulationebbedandtheislandfadedintoobscurity,untilitwasannexedbyChilein1888.Reformbeganin1953,whenthehighlandindigenouspopulationwonreleasefromforcedlaboronlargeestatesandweregrantedthelandtheyhadformerlyworke...
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- Howcanweexplaintherecentpopulationexplosion?Valueladenandincendiarywordssuchasthe"populationbomb"or"populationexplosion"aretossedaroundatwill.Ifeveryonedecidedtobecloned,therewouldbeapopulationexplosion.Stilllater,China'spopulationexplosion,thep...
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- EpidemiologicalstudyofdepressioninagedpopulationinShanghaiarea.PrevalenceofpterygiuminruralBeijingagedpopulationComparativestudyonconstitutionoftheagedpopulationofChinaandJapan;Theaspectofpaymentoftheold-agedinsurancefund,ourcountryfacestheproblemofa...
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- Poorpeasantsaccountedforthemajorityoftheruralpopulation.ModeldesigningofhealthseekingbehaviorinruralpopulationPensionschemeforruralpopulationinthenewera;Excessofrurallaborsandruralpopulationcausedbythelagofpopulationurbanizationistherootoftheproblems...
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- WhattodoabouttheagingofpopulationinHunanProvinceWhenformulatesthelatersocialpolicy,mustconsiderthefutureXiaoganagingofpopulationthefact.OntheconditionofagingofpopulationandshortageoftheIntellectualResourcesinGansu,fullydevelopingtheIntellectualResour...
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- 人有自信,才能有魄力,人有胆识,才能有本钱,人有规矩,才能有学问,人有别人没有的,减去别人有的,才能成长,改变自我,从减法开始。Althoughresearchershaveyettolearnmuchaboutthestellarpopulationswithinthesegalaxies,onethingtheydoknowisthat"thegalaxiesareextremelyblue,"say...
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- Theresultofliteratepopulationisnotonlypeoplecanread,toutilizetoolseffectively,togothroughtheirenvironment.Tohaveaknowledge-basedeconomyandascientificallyliteratepopulation,developingcountriesmustinvest,tosomedegree,infundamentalscienceandblueskiesres...
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- Effectoftemperatureondevelopment,survival,reproduction,populationparameterandpopulationtrendindexofSpodopteralitura(Fabricius)werestudied.Theseinterpretivedifficultiesarisewhenyoutrytodrawconclusionsaboutapopulationparameterfromasamplestatistic.Forak...
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- ThenomadicpopulationofAfghanistanlivesintents.Despitestiffresistancebythenomadicpopulation,peopleweremovedtocollectivefarmsandhigh-yieldingcattlebreedswereintroduced....
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- Myhometownisalargecitywithadensepopulation.acompactshoppingcenter;adensepopulation;thickcrowds.Therearenumeroushighbuildings,congestedtraffic,anddensepopulationinmoderncities.Therearenumeroushighbuildings,heavytraffic,anddensepopulationinmoderncities...
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- Butpopulationgrowthisraisingdemand.Weareenteringaperiodofrapidpopulationgrowth.Thispaperdeducesatheoreticalpopulationmodelinaurbansystemunderahypotheticalconditionofzeropopulationgrowth(ZPG),andanalysesthepopulationdynamicsforthemodel.Perhaps,relief:...
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- Byusingthismethod,thespeedofcaculationisobviouslyfasterthanthatofusingtherandomcaculationdirectlytoe-volvetheinitialpopulation.DEGAsearchesalloverthesolutionspaceasfaraspossiblebyloweringtheaffinitiesamongtheindividualsoftheinitialpopulation.Togetthe...
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- EffectofcontraceptionserviceinterventiononmigrantpopulationAmigrantpopulationusuallyconsistsofpartsofmigrantandresident,dependingontheenvironmentalconditionsthatthepopulationunderwent.AnalysisonmeaslesandrubellaantibodylevelsinmigrantpopulationinFuzh...
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- BasedontheagingofthepopulationscientificcontentdefinedclearlyChina'sagingpopulationcauses.Suchautomatedrobotscouldhelpincaringforarapidlyagingpopulation.Undertheagingpopulationsituationtodevelopourcountrysoldageindustry;Thoseeconomiesmustalsocontend...
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- Pharmacogenomicsisthestudyofthestratificationofthepharmacologicalresponsetoadrugbyapopulationbasedonthegeneticvariationofthatpopulation.ThePapermakesaresearchinScienceLiteracyofregionalpopulationbasedontheScienceLiteracyofregionalpopulationsurveyofSi...
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- Returnstheconfidenceintervalforapopulationmean.SeeHelpfortheequationusedThecalculationformulasofsamplesizebasedontheerrorlimitationaregivenforestimationofpopulationmean.Themoststringentsomewheremostpowerfulonesidedtestoftheasymptoticmultivariatenorma...
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