简介:IntroductionThisarticleisbasedontheexperienceofteachingextensivereadingclassesforsciencestudentsinourschool.Itdescribesacommonmodelforreadingclasses.Thismodelshowsthedisadvantagethatreaderstendtounderstandwhattheyreadmainlybywayoflisteningtotheteacher’sexplanation,butnotbyreadingforthemselves.Ithasgivenrisetotheparticularproblemofwhetherstudentsneedafullexplanationbeforeachievinggoodcomprehension.Thearticlesuggeststhatreadershavetoworkthemselvestoimprovetheirreadingabilityandskills.Sometechniquesforteachingareadingclassaresuggested.
简介:Whatistheinternationalorder?ProfessorZhaoXiaochundefineditasthe'standardsandspecificationsestablishedbythemembersoftheinternationalsysteminordertomaintainitsstabilityandnormaloperationaswellcoordinatingandaddressinginternationalaffairs,andactingasaguaranteemechanism,adecision-makingprocessandprovidingrulesofagenda'.ProfessorCaiTuodefinesitasthe'specificnorms,institution,
简介:AIM:Toinvestigatewhetherliversteatosisreductionduetoasix-monthdietaryinterventionresultsinsignificantchangesintheconcentrationsoffattyacids.METHODS:Agroupof35Caucasianindividualsdiagnosedwithdifferentlevelsofsteatosiswereprospectivelyenrolledinthepresentstudy.Analysisofthefattyacidprofileswasperformedaccordingtochangesinliversteatosis(liversteatosisreductionbyoneortwodegrees)afterasix-monthdietaryintervention.Thediethelpedreducebodymassinobeseandoverweightpatients,andstabilizebothglycemiaanddyslipidemia.FattyacidswereextractedaccordingtotheFolchmethodandanalyzedbygaschromatography.RESULTS:Thisstudyshowedsignificantchangesinfattyacidprofilesinpatientswhohadreducedliversteatosisbyoneaswellastwodegrees.Areductioninliversteatosisbyonedegreecausedasignificantincreaseinthelevelofthen-3family:eicosapentaenoicacid(P<0.055),docosapentaenoicacid-C22:5(P<0.05)anddocosahexaenoicacid(P<0.05).Areductioninliversteatosisbytwodegreescausedasignificantdecreaseinserumpalmitoleicacid-C16:1(P<0.05).CONCLUSION:Liversteatosisreductionisassociatedwithchangesinfattyacidprofiles,andthesechangesmayreflectanalterationinfattyacidsynthesisandmetabolism.Thesefindingsmayhelpbetterunderstandregressionofnonalcoholicfattyliverdisease.
简介:AlthoughanassociationbetweenthegroupAbetahemolyticstreptococcusandrheumaticfeverhasbeenrecognizedformorethanhalfacentury,manyimportantissuesaboutthisrelationshipremainincompletelydefined.Theinitiatingpharyngealthroatinfectionand
简介:在这研究,与起始的不安(CNOP-I)有关的有条件的非线性的最佳的不安的途径被采用为三主要木质的植物在植物数量调查最大的变化(适度的broadleaved常绿树,适度的broadleavedsummergreen,和北方的needleleaved常绿树)在中国。调查用一个最先进的Lund-Potsdam-Jena动态全球植被模型(LPJDGVM)在陆地使用紧张的某个范围以内被进行。CNOP-I表示采伐森林和罐头的一个班关于起始的不安被认为陆地使用的一种类型。当CNOP-I表示的采伐森林为所有三植物有一样的紧张时,在在北中国常绿树的北方的needleleaved的植物数量的变化在南部的中国比在常绿树的适度的broadleaved和适度的broadleavedsummergreen的植物数量的变化大。作为采伐森林紧张增加,在功能的类型碳改变的三木质的植物的植物数量变化,以一种非线性的方式。陆地使用在上的影响种功能的类型因为在气候状况和陆地使用之间的相互作用没在LPJ模型被考虑,是次要的。最后,网上的采伐森林的不同影响三植物的主要生产功能的类型被为粗野主要生产和自造营养物质的呼吸建模分析。我们的结果建议CNOP-I途径是为探索陆上的生态系统的非线性、不同的回答打使用的一个有用工具。
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