简介：AbstractParotidectomy is the mainstay treatment for tumors of the parotid gland. In an effort to improve clinical outcomes, several modern surgical techniques and perioperative interventions have been evaluated and refined. This review discusses current and actively debated perioperative interventions aimed at improving patient safety and the quality of parotidectomy. Relevant high-impact literature pertaining to preoperative diagnostic modalities, intraoperative surgical techniques, and postoperative care will be described.

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简介：Smartgrowthpoliciesadvocateforeconomicallyviable,environmentallyconscientious,andsociallyequitablesolutionsforurbandevelopment.Thesepoliciesweredevelopedlargelyinresponsetoissuesrootedintheautomobile-orientedculture:airpollution,highgreenhousegasemissions,trafficcongestion,andsedentarylifestyles.Inurbansettings,agoodtransportationalternativeiscycling,sinceitisabletoservethetravelneedsofnearlyhalfofcitydwellers’dailytrips.ManyEuropeanandCanadiancitieshavesuccessfullyincreasedcyclingratesbycreatingsaferbicycleenvironmentsandrestrictingordiscouragingautomobileuse.ToevaluatethepotentialeffectsoftheabovemeasuresonAmericanurbanareas,thispaperexaminescasestudiesofcycletracksandbicycleboulevardsimplementedinAmericancities,andhowthesefacilityimprovementshavechangedhowsafecyclistsfeelontheroadandoverallbicycleusage.Resultsshowthetwomethodsareindeedeffectiveinincreasingbicycleusagerates.Ultimately,increasingcyclingratesneedspoliciestodiscouragepeoplefromdriving,thegreatestmodeshareinnearlyallurbanareas.Parkingpolicyhasmajorimpactsonpeople’sdecisiontousetheautomobile.Currently,parkingisoversuppliedandunderpricedinmanycities,makingitirresistibleforpeopletodrive.Decreasingthenumberofparkingspacesavailableandincreasingtheirpricewillincreasepressureondriverstodriveless,especiallyforshorttrips,andtobikeinstead.Itisimportantforplannersandpolicymakerstorealizethatsolutionsfrombothdirections,makingbikingmoreenjoyableandmakingparking,andhencedriving,lessaffordable,shouldbeusedintandem.Thecomplementarynatureofthetwoapproachesmakesitsotheeffectofthecombinationisgreaterthanthesumofthetwo.

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简介：ThispaperpointsouttheproblemsexistingintheIntensiveReadingCourseclassroomsconductedundertheteacher-centredpedagogyandproposesthatvariedwarm-upactivitiesbeappliedatthebeginningofeveryclass.Thepurposeistomotivatethestudentstobeactiveparticipantsinclass,provokecommunicationatdifferentlevels,andfosterthetop-downreadingschema,allofwhichservetoenablethestudentstobecomeeffectivereaders.Thetheoreticalandapplicativeconsiderationsofthewarm-upactivitiesarediscussedindetailinthepaper.

简介：在这份报纸，三存在来源光谱为地面运动的随机的有限差错的建模的模型被考察。这三个模型被用来从一个垂直差错和平均数在一个地点计算远地的收到的精力光谱在Northridge地震的15个车站上的比率，然后比较。从比较，一项必要措施被观察维持subfault尺寸的远地的收到的精力独立人士并且避免overestimation长时期光谱水平。二改进被做到三个模型之一(即，模型基于动态角落频率)如下：(i)计算subfault角落频率的一个新方法被建议，在subfault角落频率基于从取决于的全部差错和增长的全部的地震时刻计算的基本价值是坚定的的地方，地震时刻分到subfault；并且(ii)从每subfault的放射精力的差别被考虑进可伸缩的因素。改进模型也与通过远地的收到的精力和平均数的未耕过的模型相比光谱比率。比较证明改进模型允许收到的精力比未耕过的模型更独立于subfault尺寸，并且减少overestimation度长时期光谱振幅。

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简介：服务(QoS)的A~*梅脯质量路由算法被建议计算K短路径令人满意的多重QoS限制。因为它的灵活性，A~*梅脯在处理许多实际限制被认为是为聪明的光网络的实际路由算法之一。这篇文章通过广泛的模拟实验给算法的详细表演研究。我们发现那运行时间和算法的存储器空间要求大，特别当网络尺寸增加时。Inthis文章，我们也建议一条途径到改进A~*梅脯算法的表演。改进应该在聪明的光网络为实际使用使A~*梅脯算法更吸引人。

简介：Asetofnewgasdynamicfunctionswithvaryingspecificheatarederiveoforthefirsttime.Anoriginalanalyticalsolutionofnormalshockwavesisowrkedouttherewith.Thissolutionisthereafterfurtherimprovedbynotinvolvingtotaltemperature,Illustrativeexamplesofcomparisonaregiven,includingalsosomeapproximatesolutionstoshowtheordersoftheirerrors.

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简介：EliminationoftheCRISPR/Cas9constructsineditedplantsisaprerequisiteforassessinggeneticstability,conductingphenotypiccharacterization,andapplyingforcommercializationoftheplants.However,removaloftheCRISPR/Cas9transgenesbygeneticsegregationandbybackcrossislaboriousandtimeconsuming.WepreviouslyreportedthedevelopmentofthetransgenekillerCRISPR(TKC)technologythatusesapairofsuicidegenestotriggerself-eliminationofthetransgeneswithoutcompromisinggeneeditingefficiency.TheTKCtechnologyenablesisolationoftransgene-freeCRISPR-editedplantswithinasinglegeneration,greatlyacceleratingcropimprovements.Here,wepresentedtwonewTKCvectorsthatshowgreatefficiencyinbotheditingthetargetgeneandinundergoingself-eliminationofthetransgenes.ThenewvectorsreplacedtheCaMV35SpromoterusedinourpreviousTKCvectorwithtworicepromoterstodriveoneofthesuicidegenes,providingadvantagesoverourpreviousTKCvectorundercertainconditions.Thevectorsreportedhereofferedmoreoptionsandflexibilitytoconductgeneeditingexperimentsinrice.

简介：AbstractBackground:Postural tachycardia syndrome (POTS) is a common childhood disease that seriously affects the patient’s physical and mental health. This study aimed to investigate whether pre-treatment baseline left ventricular ejection fraction (LVEF) and left ventricular fractional shortening (LVFS) values were associated with symptom improvement after metoprolol therapy for children and adolescents with POTS.Methods:This retrospective study evaluated 51 children and adolescents with POTS who received metoprolol therapy at the Peking University First Hospital between November 2010 and July 2019. All patients had completed a standing test or basic head-up tilt test and cardiac echocardiography before treatment. Treatment response was evaluated 3 months after starting metoprolol therapy. The pre-treatment baseline LVEF and LVFS values were evaluated for correlations with decreases in the symptom score after treatment (ΔSS). Multivariable analysis was performed using factors with a P value of <0.100 in the univariate analyses and the demographic characteristics.Results:A comparison of responders and non-responders revealed no significant differences in demographic, hemodynamic characteristics, and urine specific gravity (all P > 0.050). However, responders had significantly higher baseline LVEF (71.09% ± 4.44% vs. 67.17% ± 4.88%, t = -2.789, P = 0.008) and LVFS values (40.00 [38.00, 42.00]% vs. 36.79% ± 4.11%, Z = -2.542, P = 0.010) than the non-responders. The baseline LVEF and LVFS were positively correlated with ΔSS (r = 0.378, P = 0.006; r = 0.363, P = 0.009), respectively. Logistic regression analysis revealed that LVEF was independently associated with the response to metoprolol therapy in children and adolescents with POTS (odds ratio: 1.201, 95% confidence interval: 1.039-1.387, P = 0.013).Conclusions:Pre-treatment baseline LVEF was associated with symptom improvement after metoprolol treatment for children and adolescents with POTS.

简介：瞄准：决定先天的阴茎弯曲的外科的弄直是否能改进插入舒适，阴茎特征，个人关系和心理性的可勃起的机能障碍(编辑)。方法：54个病人(意味着年龄24年，范围20-31年)谁的先天的阴茎偏差由于生理的弯曲是≥25度在一张图上测量了并且正在经历穿入不快的人，为现在的学习明确地被估计。这些，14个病人受不了评价包括了的心理性的编辑病历，客观考试，有前列腺素E110-20g的导致pharmacologically的勃起，在勃起期间拿的一张图，基础、动态的双极端声谱仪，阴茎长度测量，记录的夜的阴茎肿大，神经质的侧面和心理会见到根据Hinde的参数评估他们的个人关系的质量(内容，数字，特征，频率，察觉亲密的限制的能力，另外的人的主观感觉[s]，并且可靠性)。所有病人经历了Nesbit过程。起始的评价在外科以后在3和12个月被重复。数据分析用z测试被执行。结果：化妆阴茎特征和阴道插入舒适的主观判断在外科以后显著地改善了而个人关系和版本的质量不。结论：先天的阴茎弯曲的外科的弄直改进了插入舒适和阴茎特征，但是它没能改进人与人之间的关系或心理性的编辑。

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