简介:Afewyearsago,therewasarivernearmyvillageandthewaterofitwasclear.Thepeoplefrommyvillageoftendrankthewater.What'smore,therewereallkindsoffishesinit.Butafterseveralyears,achemicalfactorywasbuiltneartheriver.Asaresult,thewaterwasseriouslypollutedbythewastefromthefactory.ltwasdisappointingtoseethewaterturnblackandthefisheskilled.
简介: 城中的每一张面孔好像似曾相识,这些都太接近于梦中的景象与境域. 骨肉皮痒是一枚喜好过着四处玩乐游手好闲日子的白羊女,而事实上,她一直都不太愿意承认自己是一个白羊座的人.……
简介:Wecanmakemistakesatanyage.Somemistakeswemakeareaboutmoney.Butmostmistakesareaboutpeople."WhenIgotthatjob,didJimreallyfeelgoodaboutitasafriend?Orisheenvious(嫉妒)ofmyluck?""AndPaul-Whydidn'tIfindthathewas
简介:摘要目的探讨静脉-动脉体外膜肺氧合后生存(survival after veno-arterial ECMO, SAVE)评分联合上机24 h乳酸对体外心肺复苏(extracorporeal cardiopulmonary resuscitation, ECPR)患者预后的预测价值。方法回顾分析2017年4月至2021年6月间于南京医科大学第一附属医院急诊科行ECPR治疗的患者共59例。根据28 d生存情况将患者分为死亡组(n=36)和存活组(n=23)。分析基线资料差异,并通过多因素Logistic回归分析确定ECPR患者28 d死亡的相关危险因素。利用受试者工作特征(ROC)曲线评估SAVE评分、上机24 h乳酸及两者联合检测对ECPR患者28 d死亡风险的预测价值。结果ECPR患者28 d生存率为39%(23/59)。死亡组SAVE评分明显低于存活组[(-11.67±4.60) vs. (-2.43±4.77),P<0.001],上机24 h乳酸明显高于存活组[5.94(3.37, 12.40)mmol/L vs. 1.65(1.07, 3.15)mmol/L,P<0.001]。多因素Logistic回归分析显示,SAVE评分(OR=0.703,95%CI:0.566~0.873,P=0.001)和上机24 h乳酸(OR=1.608,95%CI:1.025~2.523,P=0.039)为ECPR患者28 d病死率的独立影响因素。ROC曲线分析结果显示:SAVE评分最佳截断值为-6分,诊断敏感度为78.30%,特异度为91.70%;上机24 h乳酸最佳截断值为4.7 mmol/L,诊断敏感度为63.90%,特异度为100.00%;两者联合检测的诊断敏感度为82.60%,特异度为100.00%。SAVE评分与上机24 h乳酸联合检测预测ECPR患者28 d死亡风险的曲线下面积高于两个指标单独预测(0.952 vs. 0.917;0.952 vs. 0.847)。结论SAVE评分降低、上机24 h血乳酸升高是ECPR患者28 d死亡的危险因素,两者联合检测对ECPR患者的预后具有良好的预测价值。
简介:Basedontheperiodicstructureofcodeworksoflinearblockcodes,anewideaoflength-varyingcodingdigitalcommunicationssystemisproposedtosavethechannel.Itisshown,byexample,thatupto1/3ofchannelcapacitycanbesavedbythenewsysteminsomespecialsituations.Inordertofindwhichblockcodeissuitabletouseinlength-varyingcodingsystem,theperioddistributionofthecodehastobecal-culated.Newrwsultsabouttheperioddistributionarepresentedwhilemanyopenproblemsremain.
简介:WhenIwasinthethirdgrade,Iwaschosentobetheprincessintheschoolplay.Forweeksmymotherhadhelpedmepracticemylines.Butonceonthestage,everyword1frommyhead.Thenmyteacheraskedmetochangemyroletobeanarrator(解说者)fortheplay.2Ididn’ttellmymotherwhathadhappenedthatday,shenoticedmy3andaskedifIwantedtotakeawalkinthegarden.Itwasalovelyspringday.Wecouldseedandelions(蒲公英)popping4thegrassinbunches(束).Iwatchedmymotherbenddownbyoneofthebunches.“IthinkI’lldigupalltheseweeds,”shesaid.“Fromnowon,we’ll5haverosesinthisgarden.”“ButIlikedandelions,”Iprotested(抗议).“Allflowersare6-evendandelions!”Mymotherlookedatmeseriously.“Yes,everyflowergivespleasureinitsownway,doesn’tit?”sheaskedthoughtfully.Inodded.“Andthatis7ofpeople,too,”sheadded.
简介:Recently,weinterviewedCewangJigmei,PresidentoftheTibetAcademyofSocialSciences,ontheeffortsTibethasmadetosaveKingGesar.QUESTION:The31stUNESCOSessionheldinParisinOctober2001decidedunanimouslytoincludeactivitiestocelebratethemillenniumanniversaryofKingGesarinthelistofprojectsundertakenwithUNESCOinvolvementin2002-2003.Couldyoupleasetellmeyourviewsonthis?ANSWER:Thisshowstheinternationalrecognitionof,andappreciationfor,theprogress