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简介：Leta,b,cberelativelyprimepositiveintegerssuchthata2+b2=c2.Je′smanowicz’conjectureonPythagoreannumbersstatesthatforanypositiveintegerN,theDiophantineequation(aN)x+(bN)y=(cN)zhasnopositivesolution(x,y,z)otherthanx=y=z=2.Inthispaper,weprovethisconjectureforthecasethataorbisapowerof2.

简介：AbstractIntroduction:Lichen planus pigmentosus inversus (LPPI) is a rare a rare variant of lichen planus characterized by hyperpigmented patches with predominating localization in intertriginous areas. Due to its rarity, only a few LPPI cases are reported. We herein describe two rare cases of LPPI.Case presentation:The two patients were all with a brownish macular lesion on the intertriginous area. A diagnosis of LPPI was made based on their clinical manifestations, dermoscopic features, and histopathologic features, which revealed an interface change, lichenoid infiltration, and pigmentary incontinence.Discussion:LPPI is pruritic or asymptomatic, hyperpigmented macules and patches on the flexural folds. The axillae and flanks were the most commonly affected areas, followed by the groin and genitalia. About half of the female patients had inframammary fold lesions. LPPI shows higher female predominance than Lichen planus pigmentosus. There were fewer cases that lasted more than 3 years compared to LPP.Conclusion:LPPI is a rare variant of lichen planus, with a locational characteristic and female predominance. Therefore, in the case of a pigmented disease occurring in the flexural folds, it should be placed in the differential diagnosis.

简介：InChina,therearemanyhumanrightsorganizations,becauseoftheirfocusesandprioritiesrelatedtohumanrights.ChinaSocietyforHumanRightsStudies(CSHRS)isthelargestofthem,whichfocusesonhumanrightsresearch,popularizingandinternationalexchanges.ThispapertakesCSHRSasanexampletoshowtheroleofthehumanrightsorganizationsplayinChina.FromthepracticeofCSHRS,wecanseethehumanrightsorganizationsinChinaplayakindofconstructiverolethroughinvolvinginverybroadfieldsandengaginginthevariousactivitiesofhumanrightsprotection.TheirworksincludeparticipatingindraftingtheNationalHumanRightsActionPlans,givingconstructivesuggestions,workinginhumanrightseducation,engagingininternationalexchangesandcooperation,takingpartintheworkofUPR,raisingfundandimplementingprojects,andsoon.TheyaretryinghardtocontributetoimprovehumanrightssituationinChina.

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简介：在这研究，通过了台湾海峡的三热带气旋(TC)被分析；我们的结果与TC的紧张有关直接证明降水不是。从水预算的观点，潮湿流动集中主导、贡献为在在陆地上的海洋和几乎所有上的TC降水的70%潮湿，特别在TC发行量内。他们的空间分布也是类似的。蒸发在海洋上为降水贡献了30%潮湿，但是与时间改变了很少。潮湿流动集中能被划分成二部分：弯屈集中和潮湿移流。潮湿流动集中主要由于风集中，它在TC的西南的象限是主导的。潮湿移流位于北区域，并且当TC接近了陆地时，变得相对重要。潮湿流动集中和它的二部分在TC运动期间变化了，与乍见陆地加强和近在场的潮湿集中的收缩。三个TC盒子的垂直结构都显示潮湿集中主要在800hPa下面被限制到更低的空气，一个弱分叉区域在在550hPa附近的中间的对流层是在场的。

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简介：Thefoundationofanyteachingprogramshouldbetheneedsofthestudents.Asyllabuscanbesuccessfulonlyifitmeetstheneedsoftheparticulargroupofstudentsforwhomitisintended.However,closeneedsanalysishasbeenabsentinsomeEnglishclasses.ThepresentstudyaimedtosolvetheproblemofthepossiblemismatchbetweenEnglishlearnersandteachersespeciallyintheintensiveEnglishtrainingclass.ToidentifytheEnglishstudents’needsinanintensiveEnglishtrainingclass,thequestionnairesdesignedbytheresearcherwereadministeredtothestudents.ItwasfoundthattheEnglishteachingwouldbebasedonrealcommunication.Finally,thetentativesyllabuswasdesignedforEnglishteachingbasedontheresultoftheneedanalysis.

简介：TourismSatelliteAccount(TSA)isthenewestmethodformeasuringtheimpactoftourismoneconomyintheworld.TherehasbeengloballyabigtrendofdevelopmentofTSAsafteritwasapprovedasainternationalstandardbyUnitedNationsStatisticalCommission(UNSC)inMarchof2000.ThisresearchisafirstpilotexerciseofTSAmethodinChina.Theresultoftheresearchhasdrawnmuchattentionfromthetourismadministrationsandstatisticsofficesatnationallevelandthelocallevels.

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简介：TheTangjiashanlandslidedamfailedonJune10,2008,whichwasthelargestoneformedduringtheWenchuanearthquakeinChina.Nohumanliveswerelostinthisdamfailure.Thispaperpresentsadescriptionofthedam,includingthedamgeometry,thehydrographandthereservoircapacity,thediversionchannelandthedrainagefromthelake.Severalempiricalmodelsareappliedtopredictthebreachparameters,thepeakoutflowsandthereservoirvolumesduringthisbreachevent.Themainobjectiveofthestudyistocomparevariouspredictionmodelsandtomakerecommendationofthebestmodelforthepredictionofthebreachwidth,thefailuretime,andthepeakoutflow.ThebreachwidthspredictedbytheFroehlichmethodswithconsiderationsofthereservoirstoragesandtheeffectoffailuremodeareconsideredtobemorereasonable.Allpredictionmethodsdiscussedinthispaperarefoundtounderestimatethebreachformationtimeduetothecomplexmaterialandthelargethicknessofthedam.Theresultsfromthesoilconservationservices(SCS)methodcomparewellwiththeobservedpeakoutflow.TheMaronemethodincombinationwiththecoefficientexpressionsproposedbyMacchionegivesexcellentresultsinthesimulationofthereservoirvolume-levelcurve.

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简介：InChina,thereisnotoneschoolthatdoesnottakeEnglishteachingseriously.Thereisnotonestu-dentwhodoesnotwanttolearnEnglishwell.How-ever,notmanylearnerswhosucceedinEnglishlearning,communicatefluentlyinbothoralorwrit-tenEnglish,andmuchfewerreachahighlevelinhighschoolyears.Therefore,whenweencounteredahighschoolEnglishloverwhoreachedaveryhighlevelofEnglish,ourinterestinknowinghernatural-lygrew.

简介：AbstractIn January 2019, the fourth rabies case caused by organ transplantation was noticed in China, with the conditions of one per year for the recent four years. Different from the previous cases, there were no definite epidemiological histories of exposure or rabies-related symptoms from this patient. This case strongly supports the call for the legislation of establishing a national-level management that will incorporate the screening programs on donors prior to the practice of organ transplantation to reduce the risks on rabies caused by organ transplantation.

简介：Infantileaphasia,frequentlyseenofterin-fantileencephalopathysuchasbraintraumaandmeningitis,belongstothecategoriesof"suddenlossofvoice"and"difficultyinspeechduetore-tractionofthetongue"inTCM.Asthereisnoeffectivespecifictherapyintreatingthisdis-easeinmodernmedicine,acupunctureissuperi-ortoothertherapiesinthetreatmentofinfantileaphasia.Inourclinicfordifficultdisease,wehavetreatedtheillnessbyacupuncturewithfili-formandmagneto-plum-blossomneedlecom-binedwithChineseherbsandtutorialmethods.Ourtherapyiseffectiveandquickinproducingtherapeuticeffectswithshorttreatmentcourse,whichisreportedindetailinthefollowing:

简介：Accurateandeffectiveassessmentofstrategicalternativesofanorganizationdirectlyaffectsthedecision-makingandexecutionofitsdevelopmentstrategy.Inevaluationofstrategicalternatives,relevantelementsfrombothinternalandexternalenvironmentsofanorganizationmustbeconsidered.Inthispaperweusestrategicassessmentmodeltoevaluatestrategicalternativesofanair-conditioningcompany.Strategicobjectivesandalternativesofthecompanyaredevelopedthroughanalysisofthecompetitiveenvironment,keycompetitorsandinternalconditions.Theenvironmentfactorsareclassifiedintointernal,task,andgeneralopportunitiesandthreats.Analyticalhierarchyprocess,subjectiveprobabilities,entropyconcept,andutilitytheoryareusedtoenhancedecision-maker＇sabilityinevaluatingstrategicalternatives.Theevaluationresultsshowthatthemosteffectivestrategicalternativeforthecompanyistoreducetypesofproducts,concentrateitseffortonproducingwindow-typeandcupboard-typeair-conditioners,enlargetheproductionscale,andpre-emptthemarket.Thecompanyhasmadegreatprogressbyimplementingthisalternative.WeconcludethatSAMisanappropriatetoolforevaluatingstrategicalternatives.