简介：Inconsiderationoftheadsorptionofsolvent,diluentandsolutemoleculesonthesurfaceofastationaryphase,anewequationforsoluteretentioninliquidchromatographyispresented.Thisequationincludesthreeparameters:thedisplacementequilibriumconstant(Ksd)betweenthesolventanddiluentmoleculesonthesurfaceofthestationaryphase,thetotalnumber(N)ofthesolventanddiluentmoleculesreleasedfromthestationaryphaseafteronesolutemoleculebeingadsorbed,andtheparameter(I)relatedtothethermodynamicequilibriumconstantforthesoluteadsorptiononthestationaryphase.Overthewholeconcentrationrangeofthesolventinthemobilephase,theexperimentalretentiondatacanbewelldescribedbythisequation,parametersKsd,NandIcanbeobtainedbytheregressionanalysisoftheexperimentalretentiondata,andconsequentlythenumberofthesolventandthediluentmoleculesdisplacedbyonesolutemoleculefromthestationaryphasecanalsobederivedatdifferentsolventconcentrationsinthemobilephase.

简介：目的：观察推拿治疗手术后尿潴留的临床疗效。方法：对37例手术后尿潴留患者施行穴位推拿治疗，穴位选用气海、关元、中极，双侧三阴交。结果：治疗1～3次后，治愈36例，1例因退出治疗而未统计疗效。结论：穴位推拿是治疗手术后尿潴留的一种有效方法。

简介：微地形学;小地貌是影响分开，运输，和流量的侵蚀过程的高地区域的一个重要表面特征。然而，很少量的信息都不关于在微地形学和沉积产出的表面之间的关系是可得到的。实验室降雨模拟研究被进行为四不同侵蚀决定易受影响的土壤在微地形学和沉积各在0.75h持续时间和60公里h^-1紧张的一系列6～8暴风雨期间产出的表面的变化。选择的土壤是Grenada的Ap材料sil(GlossicFragiudalfs)，Atwoodsil(TypicPaleudalfs)，和Forestdalesicl(TypicOchraqualfs)，以及C材料，Glauconitic沉积，Rustonsil(TypicPaleudalfs)。土壤床与一个像苗床的表面条件在斜槽被准备。在所有前并且在每暴风雨以后，表面微地形学用激光microreliefmeter被决定。微地形学;小地貌，以吝啬的本地地志的坡度，和流量数据表示了在四土壤之中显示一个很类似的模式。沉积集中的开始快速的增加，它快速到达了最大值然后逐渐地减少了到一个近的常数在暴风雨系列的结束珍视的数据表演。沉积产量仔细由于近经常的流量率跟随了沉积集中趋势。微地形学在第一暴风雨期间，但是然后很快改变了的表面减少了对为大多数在顺序的以后的暴风雨的近似经常的价值更渐渐。在沉积yield-microtopography关系中的三个不同阶段被认出：(1)preponding分阶段执行，(2)增加池溏的沉积产量分阶段执行的一根柱子，并且(3)一根柱子减少池溏的沉积收益阶段。这些阶段在粗糙驱散，小河发展，和土壤表面的土壤侵蚀过程的相对重要性反映变化矩阵稳定。

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简介：Thestudyonretentionbehaviorinsupercriticalfluidchromatography(SFC)isnecessarytounderstandthemechanismofthevariousinteractionsinSFC.TheretentionofSFCincarboxylicacidmethylester/polymethylsiloxane/CO2systemwasstudiedsystematicallyandtheretentionbehaviorofthiskindofcompoundsundervarioustypicaloperationconditionswasdescribedusingthemethodofanalternativeunifiedtheoryofchromatographicretention.Theresultsillustratedthatexpression:Ink.=a+b/T+cp+dp/T+ep2/Tcanbeusedtodescribequantitativelytheretentionbehaviorofcarboxylicacidmethylester/polymethylsiloxane/CO2systemintherangesofreduceddensityfrom0.549to1.411.Itwasalsofoundthattheentropyofsoluteinstationaryphaseisdependentonthedensityofsupercriticalfluid(SF)undertypicaloperatingconditionsofSFC.

简介：Effectsoforganicfertilizersandeffectivemicrobesonlefwaterretentionofsweetcorn(ZeamaysL.cv.Honey-Bantam)werestudied.Sweetcornsweregrownwithorganicorchemicalfertilzerswithorwithouteffectivemicrobes(EM).Awaterretentionurvewasobtainedbydryingtheexcisedleavesunderalightof500μmol(m^2.s)^-1,Thecureshowstwodistinctphases.Theinitialsteepslopeindicatesthewaterlossspeedbystomataltranspiration(Est)andthegentleslopeofthesecondphaseindicateswaterlossspeedbycuticulartranspiration(Ecu).BothEstandEcuwerelowerforleavesofplantsgrownwithorganicmaterialsthanfrothoewithchemicalfertilizers.AdditionofEMtobothorganicandchemicalfertilizersdecreasedEstbutshowednoeffectonEcu.Thewaterretentionabilityoftheexcisedleaveswasproportionaltopho-tosyntheticmaintenanceabilityundersoilwaterdeficitconditionsaswellasthesolteconcentrationinleaves,TheresultssuggestedthatorganicfertilizationandEMappicationincreasedwaterstressresistancebothunderinsituconditionsandinexcisedleavesofsweetcornplants.

简介：目的：观察电针治疗宫颈癌术后尿潴留的疗效。方法：治疗组按辨证分型采用电针治疗，对照组采用常规方法治疗，5d为1个疗程。结果：治疗组有效率为96．7％，治愈率为76．7％；对照组有效率为70．0％，治愈率为36．7％。两组间有效率、痊愈率比较，差异均有显著性意义（P〈0．01）。结论：电针疗法是治疗宫颈癌术后尿潴留的较佳方法。

简介：一篇小说和荧光保留逆蛋白石从organosilane-polymerized碳点(SiCDs)被完成了，它经由渗入SiCD答案进photonic水晶(PC)的空隙被准备模板，低温度处理，加热聚合并且移开胶体的模板。同样准备的SiCD反的蛋白石表明靠近房间的结构，它与常规开房间的结构完全不同。当SiCD答案的荧光能被CuCl暂停通过一个有效电子转移过程熄灭时，然后，同样准备的样品的荧光信号在CuCl暂停保持几乎未改变。这现象能被PC结构在毛孔结构，稳定的crosslinking网络和荧光改进归因于高静水力学的压力的联合效果。SiCD反的蛋白石有给重要卓见进新奇、先进的光设备的设计和制造的唯一的靠近房间的结构，容易的准备和好重覆性的优点。

简介：Acupmoxitherapy,retention-enemaandoraladministrationofherbalmedicinewerecombinedtotreat86patientswithchroniculcerativecolonitis.Acomparisonbetweenpretreatmentandposttreatmentwasmadebyfibercolonoscopy.Theresultsshowedthattheshort-termcureoccurredin36cases,effectivenessin46casesandineffectivenessin4cases,thetotaleffectiveratebeing95.3%.

简介：AbstractBackground:The burden of human immunodeficiency virus (HIV) infection in people who use drugs (PWUD) is significant. We aimed to screen HIV infection among PWUD and describe their retention in HIV care. Besides, we also screen for hepatitis C virus (HCV) infection among HIV-seropositive PWUD and describe their linkage to care.Methods:We conducted a prospective study in 529 PWUD who visited the "Cañada Real Galiana" (Madrid, Spain). The study period was from June 1, 2017, to May 31, 2018. HIV diagnosis was performed with a rapid antibody screening test at the point-of-care (POC) and HCV diagnosis with immunoassay and PCR tests on dried blood spot (DBS) in a central laboratory. Positive PWUD were referred to the hospital. We used the Chi-square or Fisher’s exact tests, as appropriate, to compare rates between groups.Results:Thirty-five (6.6%) participants were positive HIV antibodies, but 34 reported previous HIV diagnoses, and 27 (76%) had prior antiretroviral therapy. Among patients with a positive HIV antibody test, we also found a higher prevalence of homeless (P < 0.001) and injection drug use (PWID) (P < 0.001), and more decades of drug use (P= 0.002). All participants received HIV test results at the POC. Of the 35 HIV positives, 28 (80%) were retained in HIV medical care at the end of the HIV screening study (2018), and only 22 (62.9%) at the end of 2020. Moreover, 12/35 (34.3%) were positive for the HCV RNA test. Of the latter, 10/12 (83.3%) were contacted to deliver the HCV results test (delivery time of 19 days), 5/12 (41.7%) had an appointment and were attended at the hospital and started HCV therapy, and only 4/12 (33.3%) cleared HCV.Conclusions:We found almost no new HIV-infected PWUD, but their cascade of HIV care was low and remains a challenge in this population at risk. The high frequency of active hepatitis C in HIV-infected PWUD reflects the need for HCV screening and reinforcing the link to care.

简介：Objective:Variousnanoparticleshavebeendesignedandtestedinordertoselectoptimalcarriersfortheinhalationdeliveryofanticancerdrugstothelungs.Methods:Thefollowingnanocarrierswerestudied:micelles,liposomes,mesoporoussilicananoparticles(MSNs),polypropyleneimine(PPI)dendrimer-siRNAcomplexesnanoparticles,quantumdots(QDs),andpoly(ethyleneglycol)polymers.Allparticleswerecharacterizedusingthefollowingmethods:dynamiclightscattering,zetapotential,atomicforcemicroscopy,invitrocyto-andgenotoxicity.Invivoorgandistributionofallnanoparticles,retentioninthelungs,andanticancereffectsofliposomesloadedwithdoxorubicinwereexaminedinnudemiceafterthepulmonaryorintravenousdelivery.Results:Significantdifferencesinlunguptakewerefoundaftertheinhalationdeliveryoflipid-basedandnon-lipid-basednanoparticles.Theaccumulationofliposomesandmicellesinlungsremainedrelativelyhigheven24hafterinhalationwhencomparedwithMSNs,QDs,andPPIdendrimers.Therewerenotabledifferencesbetweennanoparticleaccumulationinthelungsandotherorgans1and3hafterinhalationorintravenousadministrations,but24hafterintravenousinjectionallnanoparticlesweremainlyaccumulatedintheliver,kidneys,andspleen.Inhalationdeliveryofdoxorubicinbyliposomessignificantlyenhanceditsanticancereffectandpreventedsevereadversesideeffectsofthetreatmentinmicebearingtheorthotopicmodeloflungcancer.Conclusion:Theresultsofthestudydemonstratethatlipid-basednanocarriershadconsiderablyhigheraccumulationandlongerretentiontimeinthelungswhencomparedwithnon-lipid-basedcarriersaftertheinhalationdelivery.Theseparticlesaremostsuitableforeffectiveinhalationtreatmentoflungcancer.

简介：土壤水保留曲线(SWRC)提供在弄干与吸以浸透，水内容或空比率的度的变化弄湿过程的/期间描述不饱和的土壤的反应的一个重要工具。在产生这些曲线的关键考虑是怎么测量吸。经常，过滤器纸技术被采用，特别当高吸被开发时，例如与塑料泥土。当每大小与这种技术花至少一个星期，在弄干并且弄湿产生完整的SWRC能花月或年。在实验室张力计的开发现在允许矩阵吸直到要测量的大约1.5MPa。与如此的一台设备，由连续测量在小时或天为象淤泥和泥土那样的小粒的土壤开发SWRC是可能的。这份报纸描述被开发在三小粒的土壤弄干期间在体积，水内容和矩阵吸测量变化的试验性的安装。仪器的限制和曲线的实用性被讨论。

简介：Alinearsolvationenergyrelationships(LSERs)modelwasusedtoexaminethefundamentalchemicalinteractionsgoverningtheretentionof9organiccompoundsonaC_(18)columnbymeansofreversed-phasehighperformanceliquidchromatography(RP-HPLC).Threeionicliquids,1-hexyl-3-methylimidazoliumtetrafluoroborate([Hmin][BF_4]),1-butyl-3-methylimidazoliumtetrafluoroborate([Bmin][BF_4])and1-octyl-3-methylimidazoliumtetrafluoroborate([OMIm][BF_4])asadditives,wereaddedtoamethanol-watermobilephase.Theeffectsofthesethreeionicliquidsadditivesontheretentionofnineorganiccompoundswereinvestigated,andacomparisonbetweenthepredictedandexperimentalretentionfactorswasmadeviatheLSERsmodel,whichindicatedthattheLSERsmodelcouldbeusedtoreproducetheexperimentalretentionfactorsofthesolutesunderdifferentmobilephaseconditions.ItisalsoausefultoolformodelingtheinteractionsofthesolutesbetweenthestationaryandmobilephasesandevaluatingtheretentioncharacteristicsofHPLC.

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简介：在妇产科的外科以后在尿保留的处理在Zhongji(CV3)和Zusanli(圣36)观察温暖的刺破的艾灸的临床的效果。

简介：在这份报纸，我们基于板理论建议一个新奇方法同时由反向阶段的高效的液体层析在坡度elutions和不同流动率下面预言保留时间和山峰形状。建议方法在18个坡度条件和四不同流动率下面与16普通硫安类药剂在实验产出优秀保留预言结果，包括0.7，1.0，1.3，和1.5?mL/min。吝啬的绝对偏差是0.70%，它显示精确预言。而且，建议方法在山峰的扩大或压缩在不同坡度条件下面引起的山峰形状预言变化很好。

简介：从Moslachinensis格言射出的不稳定的混合物被稳固阶段的microextraction(HS-SPME)和headspace液体阶段microextraction(HS-LPME)与煤气的层析团spectrometry(GCMS)相结合的headspace分析。从Moslachinensis格言的主要volatiles在这份报纸被学习。61混合物被分开并且识别，这能被看见。49不稳定的混合物被SPME方法识别，主要包括myrcene，-terpinene,p伞花烃，(E)-ocimene,瑞香草分，瑞香草分醋酸盐和(E)--farnesene。45主要不稳定的混合物被LPME方法识别，包括-thujene,-pinene,樟脑帖，butanoic酸，2-methylpropyl酉旨，myrcene，butanoic酸，丁基酉旨，-terpinene,p伞花烃，(E)-ocimene,钢瓶煤气，1,1-dibutoxy-，瑞香草分，瑞香草分醋酸盐和(E)--farnesene。在分析不稳定的混合物以后，多重线性回归(MLR)方法被用于造回归模型。然后，量的结构保留关系(QSRR)模型被预兆能力的测试验证。预言结果在对试验性的价值的好同意。结果证明headspaceSPME-GC-MS和LPME-GC-MS是对不稳定的混合物的分析合适的简单、快速、容易的样品丰富技术。这调查为甚至当标准候选人不在时预言新混合物的保留索引提供了一个有效方法。

简介：Background:Coarsewoodydebris(CWD)isveryimportantforforestecosystems,particularlyforbiodiversityandcarbonstorage.Itsrelevanceasapossiblereservoirandsourceofnutrientsislessclear,especiallyincentralEurope.Methods:Basedonachronosequenceofknownagesoflogs,weanalyzedthenutrientsstoredinCWDofFagussylvatica,Piceaabies,andPinussylvestrisatdifferentsitesinGermany.Toquantifynutrientconcentrations,weassessedtheuseofNearInfraredReflectanceSpectroscopy(NIRS)todeterminethechemicalpropertiesofCWD.Results:NIRSmodelsweresuitabletopredictconcentrationsofC,N,P,ligninandextractives.Concentrationsofmostnutrientsincreasedwithmassloss,withtheexceptionofpotassium,whichdecreasedforbeechandpineandremainedrelativelyconstantforspruce.Thehighestnutrientconcentrations(N,P,S,CaandMn,exceptMgandK)weregenerallyobservedinhighlydecomposedsprucelogs.TheneteffectofdecreasingCWDmassandincreasingnutrientconcentrationswaseitheradecreasing(N,PandKinbeech;P,Mg,KandMninpine),constant(S,CaandMginbeech;N,SandCainpine)orincreasingamountofnutrients(N,P,SandCainspruce;Mninbeech)inthelogsoverthecourseofdecomposition.TheC/Nratiodecreasedforalltreespecies,mostmarkedlyforsprucefromca.1000atthebeginningofthedecompositionprocessto180at36years.TheN/Pratioconvergedtoavalueofabout30forallthreespecies.Ligninconcentrationsincreasedforspruceandbeechandremainedconstantforpine.Conclusions:OurresultsindicatethatmostnutrientsremaininCWDforlongperiods.NutrientsmaybeusedandcycledbymicroorganismswithinCWD,butwiththeexceptionofP(inbeech),Mg(inpine)andK(inbeechandpine),thereappearstobelittlenetnutrientexportuntiltwothirdsofthemassislost.Instead,N,P,SandCawereaccumulatedinsprucelogs,indicatingthatCWDbecameanetsinkratherthananetsourceofsomenutrientsforsevera

简介：From1990to2001,theauthortreated31casesofurinaryretentionofposthemorrhoidectomyorcesareansectionwithacupunctureofHegu(LI4)(reinforcingmethod)andSanyinjiao(SP6)(reducingmethod).Thetherapeuticeffectofthetreatmentwassatisfactory,thetotaleffectiveratewas96.7%.Followingisthereportofthetreatment.

简介：Interfacedebondingbetweenprosthesesandabutmentswasthemostfrequentfailuremodeofresin-bondedfixedpartialsdentures(RBFPDs)inclinic.ThepurposeofthisstudywastoinvestigatetheeffectofaccessoryretentionformsonthebondstrengthofRBFPDs.Threetypesof3Dfiniteelementmodelswereconstructed.ThemodelofposteriormetalplateRBFPDwithspoon-shapedocclusalrestseatsservedasthecontrol.Theremainingtwotypesofmodelsbasedonthecontroladdedtheretentionformdesignofthepinholeandaxialgrooverespectively.Theaxialorbuccolingualloadof150Nwasappliedontheprosthesis,firstpremolarandfirstmolarrespectively.Themaximumprincipalstressesoftheadhesivelayerindifferentmodelswerecalculated.Undertheloadofthesamemagnitude,thestressduetothebuccolingualloadwassignificantlyhigherthanthatduetotheaxialloadintheadhesivelayer.Theproximalshoulder,occlusalrestseatswallandtheproximalmarginadjacenttotheshoulderwerethehighriskregionwheretheadhesivelayerdamagedeasily.Comparedwiththecontrolmodel,thepinandgroovemodelscouldslightlydecreasethestressintheadhesivelayeraftertheaxialloading,whilethestressintheadhesivelayerdrasticallydecreasedafterhorizontalloadingandreducedby22%and31%respectively.TheseresultsindicatethatthehorizontalocclusalforcehasamoreseriousharmtothedebondingofRBFPDs.Inaddition,theaccessoryretentionforms(e.g.pinandaxialgrooveretentionforms)candecreasethestresslevelintheadhesivelayer,whichareconducivetoincreasetheload-bearingcapacityofRBFPDs.