简介：

简介：在网络的社区察觉在最后十年广泛地被学习了。许多标准，表示分区的质量获得，以及一些准确算法和很多启发规则被建议了。吝啬标准在最小化增加或从给定的网络搬迁了以便把它转变成一套disjoint派系的边的数字在于。最近，张，丘和张建议了一个重量系数在被介绍平衡插入并且删除的边的数字的一个加权的吝啬模型。这些作者建议规则选择系数的好值，使用模仿了退火发现最佳或在最佳附近的解决方案并且解决一系列真实、人工的例子。在现在的纸，一个算法为确切为参数的所有价值解决加权的吝啬问题被建议。这个算法反复地基于用一个排产生算法为参数的一套给定的价值解决这个问题。这个过程与一个搜索过程被相结合发现值曲线的所有最低断点即，插入并且删除的边的加权的和。从文学的一系列人工、真实的世界网络上的计算结果被报导。看来，为一样的几个分区联网可能增进知识并且解决方案的集合通常包含至少一个直觉地呼吁的分区。

简介：Inthemiddle1970s,people’sawarenesstoforestryandtheimportantroleofforestryinruraldevelopmenthadgeneratedtremendouschanges,andthe8thWorldForestryCongress,convenedin1978,hasbecomeaturningpointforrevisingtheirforestrydevelopingstrategiesandforestrydevelopingpr

简介：BackgroundShort-termhospitalreadmissionsafterpercutaneouscoronaryintervention(PCI)accountforhighermedicalcostsandpoorprognosisofpatientswithcoronaryarterydisease(CAD).However,patientsathighriskforreadmissionarenotyetidentified.MethodsAtotalof1416patientssuccessfullytreatedwithPCIwereincluded.Dataofage,sex,presentationtypeofCAD,cardiacfunction,coexistentdiseases,contrastdose,numbersoflesionsandstentsimplanted,procedurecomplication,out-of-hospitalmedicationwerecollected.Coxregressionmodelwasemployedtoanalyzethemultiplefactorsinfluencingreadmission.Results75.8%ofallreadmissionswereduetoCADandtheaveragereadmissiontimewas422days.UnivariateanalysisandmultivariateCoxregressionmodeleventuallyshowedthatpatientswithanyprocedurecomplicationsand/ormorelesionsinnumberwereathigherriskforreadmissionwhileolderage,smoke,urgentPCIandmorestentsimplantedpreventedthemfromreadmitting.ConclusionThemajorcauseofreadmissionafterPCIisstillCADitself.DuringtheindexhospitalizationofPCI,patientswithmulti-vesseldiseaseneedcarefultreatmentandprocedurecomplicationsshouldbepreventedinordertoextendtheintervalofreadmission.

简介：<正>Purpose:Thepurposeofthepresentstudywastoexaminetheeffectsofa24-weekTaiChiexerciseinterventiononbalanceandotherphysicalchangessuchasflexibilityandreactiontime(RT)amonghealthyoldermales.Methods:Thirty-eightmalesubjectsaged55—65yearswithoutpriorTaiChiexperiencewererecruitedfromalocalcommunityinShanghai,China.A60-minTaiChiexercisesessionwasperformedthreetimesaweekfor24weeks.ChangesinRT,sit-and-reachflexibilityandbalance(staticbalancewitheyesopenandclosedrespectively)weremeasuredbeforeandaftertheTaiChiintervention.Results:Afterthe24-weekTaiChiintervention,thechoiceRT(p<0.05)decreased,andsit-and-reachflexibilityimproved(p<0.01)overthepre-test(7.8±6.2vs.7.1±3.0cm).Swaylength,area,X-axisdeviationamplitudeandK-axisdeviationamplitudeperformancedecreasedsignificantlyaftertheinterventionwithadouble-footstancewitheyesopen(p<0.05).Swaylength,areaandaverageswayspeedshowedastatisticallysignificantdecreaseaftertheinterventionwiththedouble-footstancewitheyesclosed.Inthesingle-footstancewitheyesopencondition,swaylengthandaverageswayspeedshowedastatisticallysignificantdecrease(p<0.05).Conclusion:The24-weekTaiChiexerciseinterventionhadapositiveinfluenceonbalancecontrolinoldermales.

简介：Japan’svaguenessinadmittingitshistoryofinvasion,hasseverelyhurtthefeelingsofthepeopleinthosevictimizedcountries.Theinternationalcommunity’sinsufficientknowledgeaboutJapan’sinvasionhistoryanditsconnivanceatJapan’sirresponsiblebehavior,haveonlyencouragedJapantodenyandwhitewashitsinvasionhistory.TheinternationalcommunityshouldstepupeffortstopromotehistoricaljusticeandmaintainthepeacefulinternationalorderestablishedafterWorldWarⅡ.

简介：Forestryisanimportantindicatorofacountryandregion’scivilization,alsoanimportantcomponentofthecountry’snationaleconomy;theparticipationofbroadmassestoforestryproductiondirectlyinfluencethemtomakethemostoftheirforestryproductioninitiativesandintegratedbenefitsoflocalforestry.Withtheincreasingdevelopme

简介：TheauthorswanttochangetheCoverCaptionofCellResearch,Volume17,Issue1.ThecorrectedCoverCaptionshouldbe'Germlinestemcells(greendots)atthetipoftheDrosophilaovariolegeneratethegermlinecellsoftheegg

简介：<正>Communityforestryisaforestrydevelopmentandmanagementmodewithagriculturalcommunityasbasis,itisaforestmanagementorforestryproductionactivitydirectlyservingthelocalfarmersormainlyservingthem,andorganizedbylocalfarmersorpositivelyparticipatedbythem.Asacomprehensiveconceptionandmethodologysystem,communityforestryhasbeenimplementedsofarinanumberofdevelopingcountries.InChina’sofficialdocumentssuchasChinaAgenda21,thedevelopmentofcommunityforestryhasbeenofficiallyputforeword.

简介：仅仅在成年纸巾(干细胞)的房间的一个小数字在每细胞分裂拥有能力到自我更新，当生产区分子细胞为一个有机体维持织物动态平衡时“s一生。果蝇卵巢怀有位于作为germarium知道的简单解剖结构的干细胞人口(细菌线干细胞(GSC)，体的干细胞(SSC)和护卫干细胞(转换字符))的三种不同类型，显示它为为操作基因由于可靠干细胞鉴定和可得到的复杂基因工具学习干细胞生物学的最好的模型系统之一工作。特别地，为GSC的壁龛在GSC上在首先并且最好学习的，和研究之中，它的壁龛使许多成为了唯一的贡献到在干细胞和他们的壁龛之间的关系的更好的理解。到目前为止，GSC和SSC被显示了被从他们的壁龛发源的外来的因素和在内工作的内在的因素调整。多重发信号小径为控制GSC和SSC自强和区别被要求，它提供唯一的机会调查从壁龛的多重信号怎么在干细胞被解释。因为果蝇卵巢包含干细胞的三种类型，学习在给定的纸巾的多重干细胞怎么联合地工作贡献织物功能和维护也提供突出的机会。这评论在学习果蝇卵巢的干细胞加亮最近的主要进展并且也讨论未来方向和挑战。

简介：TheprojectofSichuanCommunityForestry,fundedbytheFordFoundationandassistedandguidedbyRECOFTC,isaseriesofactivitiesofresearch,practiceandpromotionofthebestmanagementandoperationalmodesimplementedintheareaoftheprojectofYangtzeriverprotectiveforest.Since1992,Sichuancommunityforestryhascarriedoutsomepilo

简介：Dataontheprevalenceofdepressioninadultcongenitalheartdisease(ACHD)patientsdifferwidely.Weaimtosummarizethebestavailableinformationontheprevalenceofdepression,itsprognosticimpact,andpsychiatricinterventionsfordepressedACHDpatients.WereviewedreferencesinrelevantpublicationsuptoOctober17,2017.Forhomogeneityofdata,studiesinwhichdepressionwasindependentlyassessedinpatientsaged18yearsorolderorwithamean/medianageolderthan18yearswereincluded.Retrospectiveandpostoperativeevaluationstudieswereexcluded.Twentypublicationsmetthesecriteria.StudysamplesincludedACHDpatientsfollowedupatACHD-specializedhospitalsin13countries.Theprevalenceofdepressiondifferedwidely,rangingfrom6to69%.Depressionhasbeenshowntobeanindependentpredictorofadverseclinicaloutcomes.Itisalsofrequentlyassociatedwithotherprognosticvariables(i.e.,poorfunctionalclass,unfavorableperceivedhealthstatus,andlowqualityoflife).Currently,norandomizedclinicaltrialsonpsychiatricinterventionsinACHDareavailable.Insummary,depressionishighlyprevalentinACHDpatients,yetitisoftenunrecognizedanduntreated.Theadverseprognosticimpactofdepressioncallsforspecializedpsychiatricinterventions,forwhichmoreresearchisneededintheACHDpatientpopulation.

简介：Cardiaccatheterizationandpercutaneouscoronaryinterventionplayanimportantroleinthemanagementofcoronaryarterydisease.Althoughthetransfemoralapproachhasbeenthetraditionallydominantmethod,therehasbeenanincreasedutilizationofthetransradialapproach.Multipleobservationalstudiesandrandomizedclinicaltrialshaveshownfewerbleedingcomplications,reducedmorbidityandmortality,improvedqualityoflife,andbettereconomicoutcomeswhenthetransradialapproachisutilizedwhencomparedtothetransfemoralapproach.Despiteitsmanybenefits,utilizationofthisapproachincertaincountriesincludingtheUnitedStateshasbeenlessthanoptimalduetoaloweradoptionratesmostlydrivenbylackoftrainingopportunitiesanddecreasedawarenessofclinicalbenefitsofthetransradialapproach.Inthisreview,thehistory,observationaltrends,efficacy,andtechnicalaspectsoftransradialcardiaccatheterizationandpercutaneouscoronaryinterventionarediscussed.

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简介：AbstractTraumatic peripheral vascular injury is a significant cause of disability and death either in civilian environments or on the battlefield. Penetrating trauma and blunt trauma are the most common forms of vascular injuries. Besides, iatrogenic arterial injury (IAI) is another pattern of vascular trauma. The management of peripheral vascular injuries has been improved in different environments and wars. There are different types of vascular injuries, such as vasospasm, contusion, intimal flaps, intimal disruption or hematoma, external compression, laceration, transection and focal wall defects, etc. The main clinical manifestations of vascular injuries are shock following massive hemorrhage and limb necrosis due to tissue and organ ischemia. Ultrasound, computed tomography angiography (CTA) and magnetic resonance angiography (MRA) are most valuable for assessment of peripheral vascular injuries. Angiography remains the gold standard for diagnosing vascular trauma. Immediate hemorrhage control and rapid restoration of blood flow are the primary goals of vascular trauma treatment. There are many operative treatment methods for vascular injuries, such as vascular suture or ligation, vascular wall repair and vascular reconstruction with blood vessel prostheses or vascular grafts. Embolization, balloon dilation and covered stent implantation are the main endovascular techniques. Surgical operation is still the primary treatment for vascular injuries. Endovascular treatment is a promising alternative, proved to be safe and effective, and preferred selection for patients. In summary, rapid diagnosis and timely surgical intervention remain the mainstays of the treatment. However, many issues need to be resolved by further studies.

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简介：Commonpracticedictatestheperformanceofpercutaneouscoronaryinterventionunderconventionalangiographicguidance.Withstudiessuggestingthehighincidenceofintraobservervariability,especiallyinangiographicborderlinelesions,newmodalitiessuchasintravascularultrasound(IVUS)guidanceduringpercutaneouscoronaryinterventionhavesurfaced.MultiplestudieshaveshownimprovedoutcomeswithIVUSguidance,mainlydrivenbyadecreaseinischemia-driventargetlesionrevascularization.Inthepasttwodecades,amultitudeofstudieshaveinvestigatedtheusesandclinicaloutcomesassociatedwiththistechnology.Inthisreview,wehighlighttheutility,advantages,economicimplications,andclinicaloutcomesofIVUSguidanceoverstandardangiographicguidance,withemphasisondataastheypertaintoIVUS-guidedstentimplantation.

简介：AbstractBackground:The pandemic of the coronavirus disease 2019 (COVID-19) has caused substantial disruptions to health services in the low and middle-income countries with a high burden of other diseases, such as malaria in sub-Saharan Africa. The aim of this study is to assess the impact of COVID-19 pandemic on malaria transmission potential in malaria-endemic countries in Africa.Methods:We present a data-driven method to quantify the extent to which the COVID-19 pandemic, as well as various non-pharmaceutical interventions (NPIs), could lead to the change of malaria transmission potential in 2020. First, we adopt a particle Markov Chain Monte Carlo method to estimate epidemiological parameters in each country by fitting the time series of the cumulative number of reported COVID-19 cases. Then, we simulate the epidemic dynamics of COVID-19 under two groups of NPIs: (1) contact restriction and social distancing, and (2) early identification and isolation of cases. Based on the simulated epidemic curves, we quantify the impact of COVID-19 epidemic and NPIs on the distribution of insecticide-treated nets (ITNs). Finally, by treating the total number of ITNs available in each country in 2020, we evaluate the negative effects of COVID-19 pandemic on malaria transmission potential based on the notion of vectorial capacity.Results:We conduct case studies in four malaria-endemic countries, Ethiopia, Nigeria, Tanzania, and Zambia, in Africa. The epidemiological parameters (i.e., the basic reproduction number R0 and the duration of infection DI) of COVID-19 in each country are estimated as follows: Ethiopia (R0 = 1.57, DI = 5.32), Nigeria (R0 = 2.18, DI = 6.58), Tanzania (R0 = 2.47, DI = 6.01), and Zambia (R0 = 2.12, DI = 6.96). Based on the estimated epidemiological parameters, the epidemic curves simulated under various NPIs indicated that the earlier the interventions are implemented, the better the epidemic is controlled. Moreover, the effect of combined NPIs is better than contact restriction and social distancing only. By treating the total number of ITNs available in each country in 2020 as a baseline, our results show that even with stringent NPIs, malaria transmission potential will remain higher than expected in the second half of 2020.Conclusions:By quantifying the impact of various NPI response to the COVID-19 pandemic on malaria transmission potential, this study provides a way to jointly address the syndemic between COVID-19 and malaria in malariaendemic countries in Africa. The results suggest that the early intervention of COVID-19 can effectively reduce the scale of the epidemic and mitigate its impact on malaria transmission potential.

简介：BackgroundLargepercutaneouscoronaryintervention(PCI)centershaveshownstatisticallybetterprognosiswithtransradialapproach(TRA)comparedwithtransfemoralapproach(TFA).SowetriedtocomparetheoutcomesbetweenTRAandTFAinonehighvolumePCIcenterinST-segmentelevationmyocardialinfarction(STEMI)patientsundergoingprimaryPCI.MethodSixhundredandsixtytwoSTEMIpatientswhounderwentprimaryPCIwithstentsimplantationwereretrospectivelyincludedfromJune1,2006toApril30,2011inourhospitalandprospectivelyfollowedforoneyear.Theprimaryendpointwasdefinedasin-hospitalnetadverseclinicalevents(NACE)whichincludeddeath,myocardialinfarction(MI),stroke,targetvesselrevascularization(TVR)andmajorbleeding.Thesecondaryendpointwasdefinedas1yearmajoradversecardiovascularevents(MACE)whichincludeddeath,MIandTVR.ResultsTheoccurrenceratesofNACE(8.0%vs.17.0%,P=0.0018),accesssitecomplications(4.0%vs.10.7%P=0.0027)andaccesssite-relatedmajorbleeding(2.4%vs.6.3%,P=0.0254)wereallhigherintheTFAgroupthanintheTRAgroup.Theincidencerateof1yearMACEwassimilarbetweenTRAandTFA(8.5%vs.13.2%,P=0.0932).TheinverseprobabilitiesweightingmatchedmultivariableCoxregressionanalysisshowedTRAwasanindependentpredictoroflowerratesofin-hospitalNACE(HR:0.58,95%CI:0.34-0.99,P=0.0477),in-hospitaldeath(HR:0.31,95%CI:0.10-0.73,P=0.0499)andaccesssitecomplications(HR:0.37,95%CI:0.19-0.73,P=0.0040).ConclusionsTRAshowedgreatefficacyandsafetyforSTEMIpatientsundergoingprimaryPCIinhighvolumePCIcenters.Itshouldberecommendedasroutinepracticeinfuture,andespeciallyinthosepatientswithhighriskofbleeding.

简介：ＳｔｕｄｙＴｏｕｒｏｎＣｏｍｍｕｎｉｔｙＦｏｒｅｓｔｒｙａｎｄＡｇｒｏｆｏｒｅｓｔｒｙＡｐｐｒｏａｃｈｅｓｉｎＣｈｉｎａ（Ｓｅｐｔ．１６－２９，１９９６）Ｔｈｅｓｔｕｄｙｔｏｕｒｗｉｌｌｐｒｏｖｉｄｅ４ｄｉｆｆｅｒｅｎｔｍｏｄｅｌｓｏｆｓｏｃｉａｌ／...