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简介：LetKbeanalgebraicnumberfieldoffinitedegreeovertherationalfieldQ,andaK（n）thenumberofintegralidealsinKwithnormn.WhenKisaGaloisextensionoverQ,manyauthorscontributetotheintegralpowersumsofaK（n）,Σn≤xaK（n）l,l=1,2,3,···.Thispaperisinterestedinthedistributionofintegralidealsconcerningdifferentnumberfields.TheauthorisabletoestablishasymptoticformulaefortheconvolutionsumΣn≤xaK1（nj）laK2（nj）l,j=1,2,l=2,3,···,whereK1andK2aretwodifferentquadraticfields.

简介：ThecircularcliquenumberofagraphGisthemaximumfractionalk/dsuchthatG^kdadmitsahomomorphismtoG.Inthispaper,wegivesomesufficientconditionsforgraphswhosecircularcliquenumberequalthecliquenumber,wealsocharacterizetheK1,3-freegraphsandplanargraphswiththedesiredproperty.

简介：AbstractThe source of human oocytes is directly associated with the success of infertility treatment and fertility preservation. The number of oocytes obtained is possibly correlated with the success rate in terms of live birth rates. However, oocyte quality must be refined such that the number of oocytes is not positively correlated with the quality of oocytes. Different ovarian stimulation protocols can be used to obtain numerous oocytes. However, oocyte quality should be considered the most important factor affecting infertility treatment and fertility preservation. Infertile women are generally willing to take health-related risks to achieve a live birth, and ovarian stimulation using high-dose hormonal treatments may be harmful for both women and infants. Therefore, successful infertility treatment and fertility preservation should be defined as the birth of a healthy baby at term without compromising the health and safety of the mother and infant. Therefore, the source of high-quality oocytes must be carefully considered prior to infertility treatment and fertility preservation.

简介：AbstractGamete production is essential for mammalian reproduction. In the ovaries, the primordial follicle, which is the basic reproductive unit, is formed either perinatally or during the second pregnancy stage in humans. However, some oocytes die before the establishment of the primordial follicle pool. Consequently, it is essential to uncover how the size of the primordial follicle pool is determined and how the programmed cell death of oocytes is performed under potential surveillance. According to recent studies, the fate of oocytes in the fetal ovary seems to be determined by different protective strategies through the timely control of apoptosis or autophagy. In this review, we discuss at least three oocyte-derived protective biomarkers, glycogen synthase kinase 3 beta, X-linked inhibitor of apoptosis, and Lysine-specific demethylase 1 (also known as KDM1A), responsible for surveilling the developmental quality of fetal oocytes to coordinate primordial follicle formation in the fetal ovary. This review contributes to a better understanding of the secrets of the female reproductive reserve under physiological conditions.

简介：Windshearreflectsthatthewindfieldisnotuniform,whichisoneoftheprimaryfactorswhichmaketheretrievalofthewindfielddifficult.Basedonvolumevelocityprocess(VVP)windfieldretrievaltechnique,theintensityofwindshearisidentifiedinthispaper.Afteranalyzingthetraditionaltechniquesthatrelyonthedifferenceofradialvelocitytoidentifywindshear,afixeddifferenceamongradialvelocitiesthatmaycausefalseidentificationinauniformwindfieldwasfound.Becauseofthenon-uniformityinwindshearareas,thedifferenceofretrievedresultsbetweensurroundinganalysisvolumescanbeusedasameasurementtoshowhowstrongthewindshearis.AccordingtotheanalysisofasevereconvectiveweatherprocessthatoccurredinGuangzhou,itcanbefoundthattheareasofwindshearappearedwiththestrengthsignificantlylargerthaninotherregionsandthemagnitudegenerallylargerthan4.5m/(s·km).Besides,bycomparingthevariationofwindshearstrengthduringtheconvection,itcanbefoundthatnewcellswillbemorelikelytogeneratewhenthestrengthisabove3.0m/(s·km).Therefore,theanalysisofstrongwindshear'smovementanddevelopmentishelpfultoforecastingsevereconvections.

简介：<正>Inthispaperaspecialkindoftriangulatedmapsonthespherecalledfairtriangulationsisenumeratedwiththesizeofmapsasparameter.Moreover,thenumberofseveralotherkindsoftriangulationsareenumeratedaswell.

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简介：ＴｈｅＳａｇａｏｆＮｕｍｂｅｒ１０８￥ＦＡＮＢＥＮＪＩＣｉｖｉｌａｖｉａｔｉｏｎｂｅｉｎｇｗｈａｔｉｔｉｓｉｎＣｈｉｎａ，ａｐｌｅｔｈｏｒａｏｆｉｎｔｅｒｅｓｔｉｎｇｓｔｏｒｉｅｓ，ｓｏｍｅｏｆｔｈｅｍｑｕｉｔｅｃｏｍｐｅｌｌｉｎｇ，ｗａｓｉｎｅｖｉ...

简介：Theprocessofsinteringofseveralparticlesincontactviaaviscousflowmechanismwasstudiednumericallyusingcomputationalfluiddynamics.Thevolumeoffluidtechniquewithinafinitevolumemethodwasusedtosimulatebridgeformationbetweenparticles,aswellasdensificationatdifferentconfigurationalstatesoftheparticles.Themethodwasvalidatedbycomparingresultsfortwo-particlecoalescencewiththeliterature.Theeffectofthenumberofparticlesonagglomerationkineticswasstudiedbycomparingbridgegrowthrateforsystemshavingdifferentnumbersofparticlesinachain.Althoughincreasingthenumberofparticlesledtoadecreaseinthelocalbridgegrowthrateandtoslowerequilibration,therewerenomarkeddifferences,whentheoverallvolumeofthesystemwasconsidered.Theeffectofcoordinationnumberonthedensificationratewasdirectlystudiedbychangingthenumberofparticlesincontactwithacentralparticle.Increasingthecoordinationnurnbeccausedtheoverallrateofdensificationtoincrease,butdelayedequilibration,analogoustostericeffects.Thesefindingsdescribetheconfigurationalstateofagglomerates,typicalofmesoscalecaking.Inamulti-scalestudy,theycanbeusedtocharacterizecakingatabulkscaletopartlyaddressthelackofexperimentaldatainthisfield.

简介：老鼠卵母细胞在meiotic成熟，和这极化期间经历极化为最大化母亲的部件的保留的不对称的房间部门的必需品为早开发被要求。没有常规中心体，meiotic锭子少些集中了杆并且是塑造桶的。到外皮的meiotic锭子的迁居被外皮的一个本地重组和极化伴随。LGN是涉及房间极性和锭子组织的规定的保存蛋白质。在现在的学习，我们在老鼠卵母细胞成熟期间描绘了LGN的本地化动力学并且在meiotic锭子组织上分析了LGNupregulation和downregulation的效果。在幼芽的泡阶段，LGN细胞质地并且在外皮被散布。在成熟期间，LGN本地化到meiotic锭子仪器，外皮的LGN变得更少在肌动朊帽子区域专注。过多的LGN由伸长导致meiotic锭子组织缺点集中的锭子和提高的杆，而由RNA干扰的LGN的弄空导致meiotic锭子变丑和染色体错误排列。而且，LGN的N终点有全身的LGN的能力调整锭子组织，而LGN的C终点控制外皮的本地化和极化。我们的结果表明LGN外皮地在老鼠卵母细胞被极化并且为meiotic锭子组织是批评的。

简介：Insomeforeigncountries,somepeopledonotlikethenumber13.Theydon′tthink13isaluckynumber.Forexample,theydon′tliketoliveonthethirteenthfloor.

简介：LetH=(V,E)beaК-uniformhypergraph.For1≤s≤К—1,ans-pathPn^(К,s).oflengthninHisasequenceofdistinctverticesυ1,υ2,…,υs+n(К-s)suchthat{υ1+i(К-s),…,υs+(i+1)(К-s)}isanedgeofHforeach0≤i≤n-1.Inthispaper,weprovethatR(Pn^(3s,s),P3^(3s,s))=(2n+l)s+1forn≥3.