ON NEW MATERIAL OF STEGODON WITH RECOLLECTIONS OF THE CLASSIFICATION OF STEGODON IN CHINA

ReviseddiagnoaisCraniumcompressedanteroposteriorlyandhighvertical1y.Superiortuskslargeandstraight,nolowerincisors'Ridge-platesprogressiveIymulti-plyingfromsixtoelevenintheintermediateteeth,fromninetofifteenandhaIfilltheposteriormolars.Thereisamediancleftoritsvestigesintheanteriorridge-platesoftheprimitivespecies.Conesrapidlysubdividingbybinaryorternary.fissionintomultipleconelets(8-l2).Ridge-plateselevatingfrombrachyodonttosubhypsodont.Cementdevelopingintheval1eys.RemarksSarwar(l977)propose…     

MODELING METHOD OF LOOP FOR PROTEIN ENGINEERING

IntroductionAfullunderstandingofproteinfunctionrequiresaknowledgeof＊thedgethree－d［men－slonalstructures．SuchstructuralInformationIsusuallyprovldedbyhlgh－resolutlonX－rayandneutrondlffractlonstudiesorsolutionnuclearmagneticresonanceexperiments．ThestudyofproteintertiarystructureshasledtoagreaterInsightIntomanyimportantbiologicalprocesses．Unfortunately，formanyprotelnssuchexperlmentallydetermlnedstructuresareIncompleteornonexistent．Forexample，nostructuralInformationmaybeavailablefort…     

THE DISCOVERY OF THE CRIBRIFORM PLATE IN SINOCONODON YOUNCI (TRICONODONTA,MAMMALIA)

ThepresenceofacribriformplateinlivingplacentalsandthemarsupialsandabsenceinmonotremesmayimplythatmammalsarediphyleticandtheoriginofcribriformplatetookplacewithinthcMammalia.Buttheconc1usioncamefromthe1ivingmammalsonly,andhasnotbeensupportedbypalaeontologicalevidence.Itsappearanceinoneoftheoldestandthemostprimitivemammals,Sinoconodon,possiblysuggeststhatthecribriformplatemayoccurearlier,i.e.inthetimeofthetransitionfromtheadvancedmammal-likereptiles,Cynodontia,tothetruemammals,andthatthedistrib…     

从Streptomyces chromofuscus ATCC 49982中鉴定出一种新型葡萄糖醛酸转移酶CSCD

糖基化是增加化合物极性的一种有效方法。UDP-葡萄糖醛酸转移酶(UGTs)在II期药物代谢中被广泛研究。然而,微生物中的UGTs没有得到很好的研究,这阻碍了这种类型的酶在天然产品的微生物葡萄糖醛酸化中的利用。     

石蒜碱通过激活AMPK通路和下调MMP9促进雪旺细胞自噬改善神经功能

糖尿病周围神经病变(DPN)是糖尿病最常见的并发症,也是最常见的神经系统疾病。DPN患者有多种表现,包括大神经纤维损伤引起的感觉丧失和肌肉无力,小神经纤维损伤引起的感觉迟钝、疼痛、麻木和植物神经症状。严重时,DPN还会导致剧烈疼痛和皮肤溃疡,甚至威胁患者生命。然而目前尚无批准用于治疗DPN的药物。     

QUANTITATIVE ANALYSIS IN THE RESEARCH OF TEACHING

TheauthorconslstentlythlnkthatagreatdealofinfromationisIncludedintbescoreofstudent’sexamination，whichcanbeusedInthequantitativeanalysisofteachingandstudyingproblemsonmanyaspects．Soseveralstatlstlca！methodshavebeenusedInthestudyofteachingactivitybythea…