简介：Maleandfemalesexhormonesareessentialforprenatalandpostnatalsexualdevelopment,andformanyaspectsofadultreproductivehealth.However,evidencefromexperimentalanimalstudiesandclinicalepidemiologicaldataindicatesthatprolongedexposuretoendogenoussexsteroidspromotesneoplastictransformationintheglandularepitheliaofsecondarysexualorgans(e.g.breast,uterus,prostate).Sexsteroidsrecruitmitoticallyquiescent(Go)cellstoentertheproliferativecellcycle(G1andSphases)byincreasingtheexpressionofregulator).proteins,evclinsandcyclin-dependentkinases.Sexsteroidsalsorepressgenesthatactivateapoptoticprogvammedcelldeath.Thesemitogenicandantiapoptotieactionscanincreasethelikelihoodofrandomgeneticerrorsandpromotethedevelopmentandprogressionofcancers.Forclinicians,themostimportantaspectofthisrelationshipisthemodestincreasedriskofbreastandprostaticmalignancies,overbackgroundrates,attributabletotheuseofexogenoussexsteroidsforcontraceptionandhonnonereplacementtherapy(HRT).Tiffscontributionfocnsesonthisaspect.

简介：ＳｅｘＨｅａｌｔｈＥｄｕｃａｔｉｏｎｉｎＵｎｉｖｅｒｓｉｔｙＮｅａｒｌｙ１００ｓｔｕｄｅｎｔｓｆｒｏｍｔｈｅＣａｐｉｔａｌＮｏｒｍａｌＵｎｉｖｅｒｓｉｔｙｂｅｇａｎａｃｏｕｒｓｅｏｎｓｅｘｈｅａｌｔｈｉｎｆｏｒｍａｔｉｏｎｓｉｘｍｏｎｔｈｓａｇｏ．...

简介：Thedemographicstructureofpopulations,particularlyageandsex,hasprofoundconsequencesforharmoniousandsustainablesocialandeconomicdevelopment.Furthermore,analyzingsexratiosofpopulationsisimportantinanalyzingthedevelopmentofthestatusOfwomenandgirls.

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简介：我今天给大家说个电影,《天下无贼》。但是与厚版本有所不同,演员我都换掉了!作为导演,我真是有魄力呀!演员表:神偷扁铲——范伟饰神偷女朋友小鹅——宋丹丹饰扁铲和小鹅开着拖拉机出场小鹅:哎呀妈呀,这车可真是够劲啊,这一票可没白干!扁铲:那……那……那是!要么不……不出手……出……出手就弄他个大的!宝……宝马车!高级货!

简介：Sincethe1980s,especiallythemid-1980s,theimbalanceinthesexratioatbirthinChinahasbeenincreasingcontinuouslyandthesituationhasworsenedinrecentyears,accordingtothefourthandfifthcensusesin1990and2000.Thisissuehasdrawnwidespreadattentionfromthegovernmentaswellasacademia.Thefundamentalreasonfortheimbalance

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简介：客厅里的光影流转，书房里的模拟人生，卧室里的衣香鬓影，浴室里的水性“扬”花，厨房里的活色生香，阳台上的风花雪月

简介：<正>别为自己的身材自卑受访者:丹妮35岁公务员丹妮曾有一副魔鬼般的身材,可自从生了儿子后,她愈来愈丰满,服过各种减肥药,毫不见效,为此她万分沮丧。晚上和丈夫在一起时,她总是担心丈夫不喜欢自己的身体,弄得身心紧绷绷的,对丈夫的爱抚没半点兴趣,渐渐地,做爱变得兴味索然。当有一天丈夫对她

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简介：<正>DIY是英文"DoItYouself"缩写,意为"自己动手做"。DIY没有地域、性别、年龄的区别,每个人都可以自己动手做,利用DIY做了来的物品自有一份自在与舒适。在两性世界里,在爱海情波中,当欲望的潮水将你淹没,你却由于

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简介：Objective:Todescribethedifferentcharacteristicsbetweenfull-timesexworkers(FTSW)andpart-timesexworkers(PTSW)inGuangzhou,China,andtode-terminetheriskfactorswhichleadtothesignificantlyhigherprevalenceofgonorrheaandtrichomoniasisamongFTSW.Methods:FromMarch1998toOctober1999femalesexworkerswererecruitedthroughvariousoutreachmethods,andwereinterviewedandtestedforthepres-enceofsexuallytransmitteddiseases(STDs).IntermsofadditionalregularsalaryfemalesexworkersweredividedintoFTSWwhodidn'thaveadditionalregularsalaryandPTSWwhohadadditionalregularsalary.Univariateandmultivariatelogisticregressionanaly-seswereusedtoidentifyriskfactorsforgonorrhea/trichomoniasisandtodeterminetheconfoundersintherelationshipbetweennoregularsalaryandgonor-rhea/trichomoniasis.Results:Atotalof442FTSWand524PTSWen-teredthisstudy.Prevalenceofgonorrheaandtri-chomoniasiswassignificantlyhigherinFTSWcomparedtoPTSW.FTSWweremorelikelytohavealowereducationlevel,haveahistoryofinject-ingdrugsusesince1990,torecruitclientsinamas-sage/sauna,havebusinessmenastheirclientsandnothaveasteadypartnercomparedtoPTSW.Inbivariateanalysesmodels,ageleavingeducation,maintypesofclientsandrecruitmentlocationsappearedtobethestrongestlinksbetweennoregularsalariedpositionandgonorrhea.Ahistoryofinjectingdrugsandhay-ingnosteadypartner(past12months)appearedtobethestrongestlinksintherelationshipbetweennoregu-larsalariedpositionandtrichomoniasis.Conclusion:Differenteducationlevels,clients,andrecruitmentlocationsbetweenFTSWandPTSWmayaccountforthedifferentgonorrheaprevalenceamongsexworkers.Thehigherprevalenceoftrichomonia-sisamongFTSWmayberelatedtothelargerpropor-tionofwomenhavingnosteadypartnerorahistoryofinjectingdrugs.TheresultssuggeststrategiestopreventHIV/STDsamongfemalesexworkersshoul

简介：1.IntroductionCoalislistedinChina’senergypolicyasthepredominantfueltobeusedforthermalpowergeneration.ItincludesnearlythewholespectrumofcoalsthatChinahas,rangingfromanthracitetobrowncoal.ThisposesasituationtoChina’sutilityboilermanufacturersthattheirproductshavetocopewithallkindsofcoalavailable.Chinaisnowproducingafullrangeofutilityboilerswithca-pacitiesfrom35t/hthrough2000t/h.Theyhavesuccessfullyburnedanthracitieswithvolatilemattergreaterthan7%andlowgradecoalswithhighmoistureandhighashcontents.Theyburnbituminouscoalsandligniteswithsatisfactoryefficacy.

简介：“要么旅行，要么读书，身体和灵魂必须有一个在路上”、”我选择旅行，选择在郁金香的国度迷醉，只为找寻灵魂深处久违的碰撞与共鸣。

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简介：AbstractMonochorionic dizygotic twin gestation is clinically very uncommon but poses significant antenatal and postnatal complications. Here we review the diagnosis, mechanism, perinatal management, and pregnant outcomes of monochroic dizygotic twin gestation.

简介：TofurtherimplementthespiritoftheThirdPlenarySessionoftheEighteenthPartyCentralCommittee,conscientiouslysumupcomprehensivemanagementofsexratioatbirthin2013andfullyarrangethetasksin2014,onDecember20,2013,NationalMeetingonComprehensiveManagementofSexRatioatBirthwasheldinFuzhou