简介：Wienerfilteringisusedtoestimatereceiverfunctioninatime-domain.Withtheverticalcomponentof3-componentteleseismicPwaveformastheinputofaWienerfilter,receiverfunctionasthefilterresponse,andradialandtangentialcomponentsastheexpectedoutput,receiverfunctionisestimatedbyminimizingtheerrorbetweenexpectedandactualoutputs.ReceiverfunctioncanbeobtainedbysolvingtheToeplitzequationusingtheLevinsonalgorithm.Thenon-singularityoftheToeplitzequationensuresthestabilityofWienerDeconvolution.BothsyntheticandobservationalseismogramcheeksshowthatWienerDeconvolutionisaneffectivetime-domainmethodtoestimatereceiverfunctionfromteleseismicPwaveform.

简介：这份报纸论述一个算法评估估计并且为在计算环境的云的一个计算机网络的准确系统可靠性。从服务(QOS)的质量观点，当掉到一个特定的状态时，计算机网络应该被维持以便它不能负担得起足够的能力满足需求。而且，传播时间应该也被担心。因此，数据能通过几被送拆散最小的路径同时弄短传播时间。在维护预算B和时间限制T下面，我们评估数据的d单位能通过多重路径从云被送给顾客的系统可靠性。二个过程集成于建议算法--为估计的系统可靠性的一个评价过程和利用branch-and-bound的一个调整过程为准确系统可靠性来临。随后，有更低的界限的估计的系统可靠性和上面的界限，和准确系统可靠性被使用递归的和计算拆散产品(RSDP)算法。

简介：Objective:ThisstudyestimatesthenumbersofnewcancercasesandcancerdeathsinHebeiprovinceusingincidenceandmortalitydatafrom9population-basedcancerregistriesin2012.Methods:Thedataofnewdiagnosedcancercasesandcancerdeathsin2012werecollectedfrom9population-basedcancerregistriesofHebeiprovincein2015.AllthedatamettheNationalCentralCancerRegistryofChina(NCCR)criteriaofdataquality.Thepooleddataanalysiswasstratifiedbyareas(urban/rural),gender,agegroup(0,1-4,5-9,10-14,…,85+)andcancertype.NewcancercasesanddeathsinHebeiprovincewereestimatedusingage-specificratesandcorrespondingprovincialpopulationin2012.The10mostcommoncancersindifferentgroupsandthecumulativerateswerecalculated.Chinesepopulationcensusin2000andSegi'spopulationwereusedforage-standardizedincidence/mortalityrates.Results:Allcancerregistriescovered4,986,847populations,6.84%ofHebeiprovincialpopulation(2,098,547inurbanand2,888,300inruralareas).Thepercentageofcasesmorphologicallyverified(MV%)anddeathcertificate-onlycases(DCO%)were76.40%and4.72%,respectively.Themortalitytoincidencerateratio(M/I)was0.64.In2012,itisestimatedthattherewereabout187,900newdiagnosedcancercasesand119,800cancerdeathsinHebeiprovince.Theincidencerateofcancerwas258.12/100,000(275.75/100,000inmales,239.78/100,000infemales),andtheage-standardizedincidenceratesbyChinesestandardpopulation(ASIRC)andbyworldstandardpopulation(ASIRW)were210.65/100,000and208.50/100,000,withthecumulativeincidencerates(0-74yearsold)of24.46%.ThecancerincidenceandASIRCwere256.99/100,000and211.32/100,000inurbanareasand258.94/100,000and209.99/100,000inruralareas,respectively.Thecancermortalityratewas164.63/100,000(201.85/100,000inmales,125.92/100,000infemales).AgestandardizedmortalityratesbyChinesestandardpopulation(ASMRC)andbyworldstandardpopulation(ASMRW)w

简介：Middleearsurgerytechniqueshaveenabledtoimprovehearingdestroyedbyadisease.Despitehugeimprovementininstrumentationandtechniquestheresultsofhearingimprovementsurgeryarestilldifficulttopredict.ThispaperpresentstheresultsofvibrationsmeasurementsinahumanmiddleearobtainedattheMedicalUniversityofLublin.Vibrationsofthestapesinthecaseoftheintactossicularchain,aftercementincusrebuildingandincusinterpositionsarecomparedeachother.Inthisaimanewapproachofossiclesvibrationsobservationisintroducedinordertocompleteinformationobtainedfromclassicalapproachwhichbasesonthetransferfunction.Measurementsofossicularchainvibrationsareperformedonfreshhumantemporalbonespecimenusingthelaserdopplervibrometer.Next,afterclassicalresearch,theextendedanalysiswiththerecurrenceplotstechniqueisperformed.

简介：混合的Diapycnal(DM)在上面太平洋的600m从全球温度咸度侧面计划(GTSPP)基于观察的巨大的数量被估计，用finescaleparameterization的紧张版本。在每个季节的DM展出类似的分发模式，这被发现，但是在细节不同。DM的增强与底部粗糙有关，表面在惯性附近的精力，和最近到赤道。不平的地形学表演在东北太平洋在Mendocino破裂地区附近在侧面引起的加强的DM，和产生风的在惯性附近的精力引起的提高的DM出现在南部的海洋的西的区域。作为与以前的估计相比，在这个工作的DM估计有更好空间的范围和更好的分辨率，并且更重要地，它包含季节的可变性。而且，产生DM数据集是gridded，为为应用程序建模使它变为合适。

简介：Foralongtime,aquantitativecalculationofenergyradiatedbyseismicwaveshasbeenanimportantprobleminthebasicstudyofseismology.Uptonowthewell-knownrelationshipoflgE=l.5MS+11.8createdbyGutenbergandRichter(1956)hasstillbeenabetterexperientialstatisticalrelationforestimatingtheenergyofseismicwaves.Sincethecreationofseismicdislocationmodelinthe1960s,seismologistshavestudiedaquantitativecalculationofenergyradiatedbyseismicwaves.Forexample,Haskell(1964),VassilionandKanamori(1982),CHENandDuda(1993b)haveacquiredmanycreativeresults.Especiallysincethe1980s,digitalseismometerswithlargedynamicrange,widebandandhighprecisionusedinseismicmonitoringandusageofprocessingtechnologyofdigitalcomputerhavegreatlyexploitedthestudyfieldofmoderndigitalseismology.OnthebasisofseismicdislocationmodeldevelopedbyBrune(1970),anewseismicwaveradiatedenergyrelationdependedonseismicmoment,ambientstress(0andpeakgroundmovementhasbeenestablished.DataobservedbymobiledigitalseismometerintheYao(anM=6.5earthquakeonJanuary15,2000anditsaftershocksequenceareusedtoestimateseismicradiatedenergy.Furthermore,wealsodiscusstheambientstress(0andcharacteristicsofenergyattenuationfortheaftershocksequence.

简介：EstimatedGreen'sfunction(EGF)betweenstationshasbeenextractedfromambientseismicnoise,directsurfacewaveandcodawaves.Itisalsoconfirmedbylaboratoryexperimentsonultrasonicsandtheoreticalderivationsassumingdiffusivewavefield,equi-partitionofmodesorrandomsourcesonanenclosedsurface.Thismethodprovidesanewapproachtostudythecrustandmantlestructureatregionalscale,continentalscaleandglobalscale.Followingtheachievementswithseismometerrecords,therecordsofinfrasonicstation,hydrophoneandmicrophonewerealsousedtoobtaintheEGFsofdifferentwavefields.Sincesuperconductinggravimeterisabetterlongperiodinstrumentthanregularseismometer,EGFatlongerperiodisexpectedtobeobtainedwiththecrosscorrelationofgravitydata.Inthispaper,wewillshowtheEGFsextractedbycross-correlationsbetweenthesuperconductinggravimetersandtheseismometers.Boththetraveltimesanddispersioncurvesobtainedfromdifferentdatatypesareconsistent.Theresultshowsthatitispossibletoretrievethedeepstructurebythecrosscorrelationofgravitydata.

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简介：为ectotherms的发展的内在的最佳温度不仅为他们的生理的过程而且为生态、进化的过程是最重要的因素之一。SharpeSchoolfieldIkemoto(SSI)模型成功了定义能热力学地满足在特别温度，到达它的最大的活动的活跃的酶的概率被认识到的条件的温度。以前，一个算法被Ikemoto开发(热带疟疾不意味着热环境。医药昆虫学的杂志，45，963969)到估计模型，参数，而是那编程序计算地很耗时。现在，因为一个完整的自动计算机程序被史等设计，调查者能更容易使用SSI模型。（为估计SSI模型的参数的一个修改程序。环境昆虫学，40，462469)。然而，为每ectotherm的内在的最佳温度的点估计的统计意义还没是坚定的。这里，我们为由修改计算估计的内在的最佳温度的信心间隔提供了一个新方法近似自举信心间隔方法。为这个目的，在SSI模型为参数的一个更快的评价开发一个新节目是必要的，我们也做了它。

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简介：Duringthehydrodynamiccharacteristictestingofaorticvalveallograft(AVA),thetestingconditionwasadjustedtoobtainthebesthydraulicperformanceofAVA.Thetestingcondition,thecharacterofthecirculationduplicator,isregardedastobeconsistentwiththehumancirculationinvivo.Thenthecomparisonamongthere-sultsofAVAorificearea(AVA)estimatedbyGorlinformula,thecontinuityequa-tionandtheirmodifiedtypes,respectively,wasperformed.

简介：AbstractBackground:Early body composition changes, associated with physical inactivity and disease advancement are devastating for patient-related outcomes in predialysis chronic kidney disease (CKD), thus warranting a detailed analysis of body composition beyond conventional measures.Methods:The study included 40 subjects diagnosed with CKD; recruited between January to May 2021. Body composition was measured using the multifrequency analyzer, InBody 770. International Physical Activity Questionnaire-Short Form was used to assess physical activity. Suitable statistical analyses were performed using SPSS 21.0.Results:The mean age of the subjects was 58.68 ± 12.24 years. Sarcopenic obesity was prevalent in 62.5% of the subjects. Body mass index under identified obesity by 15% compared to percent body fat, especially in subjects with low muscle mass. The decline in a unit of estimated glomerular filtration rate (eGFR) significantly correlated with a decrease in weight (p = 0.02), body fat mass (p = 0.05), visceral fat area (p = 0.05), and phase angle (p = 0.01) with marginal changes in waist–hip ratio and extracellular water/total body water. The effect of physical activity on skeletal muscle mass was homogeneous between low and moderate levels, but significantly different from high activity level.Conclusion:Changes in fat and fluid compartment were associated with eGFR decline, whereas higher physical activity positively affected body composition.

简介：获得更高精确的位置估计，随机的模型被估计由用观察的剩余，，因此随机的模型更写实地在大小描述噪音和偏爱。由使用GPS数据和广播位置推算历，在亚米水平显示精确位置估计的数字结果是可获得的。

简介：AbstractBackground:Soil-transmitted helminthiases (STH) are part of the group of neglected tropical diseases traditionally treated with preventive chemotherapy interventions. In recent years, drug donations have been essential to expanding preventive chemotherapy and achieving progressive control of morbidity from STH. This study aims to evaluate the need for anthelminthic medicines during 2020–2030.Methods:To estimate the need for anthelminthic medicines, we considered three different scenarios: (1) the control programmes continues to expand coverage and maintains the frequency of drug administration established at baseline; (2) the programmes continues to expand coverage but adapts the frequency of drug administration when the STH prevalence is reduced and (3) the STH programme becomes self-sustainable in some endemic countries.Results:We estimate that the number of anthelmintic medicines needed to treat school-aged children will increase by 40% by 2025 and by 52% by 2030 if countries do not change the frequency of preventive chemotherapy (scenario 1); that the number of tablets needed will reduce by 32.4% by 2025 and by 49.1% in 2030 if endemic countries reduce the frequency of preventive chemotherapy (scenario 2); and drug donations could be reduced by 54.4% by 2025 and 74.4% by 2030 if some endemic countries could become independent in drug procurement (scenario 3).Conclusions:The number of anthelmintic medicines needed to achieve elimination of morbidity due to STH in school-aged children will decline during 2020–2030. The decline will be substantial if a number of "upper-middle income" countries in which STH are endemic procure, as expected, anthelminthic medicines independently.

简介：Soilmicrobialbiomassandcommunitystructuresarecommonlyusedasindicatorsforsoilqualityandfertility.Ainvestigationwasperformedtostudytheeffectsoflong-termnaturalrestoration,cropping,andbarefallowmanagementsonthesoilmicrobialbiomassandbacterialcommunitystructuresindepthsof0–10,20–30,and40–50cminablacksoil(Mollisol).Microbialbiomasswasestimatedfromchloroformfumigation-extraction,andbacterialcommunitystructuresweredeterminedbyanalysisof16SrDNAusingpolymerasechainreaction-denaturinggradientgelelectrophoresis(PCR-DGGE).Experimentalresultsshowedthatmicrobialbiomasssignificantlydeclinedwithsoildepthinthemanagementsofrestorationandcropping,butnotinthebarefallow.DGGEprofilesindicatedthatthebandnumberintop0–10cmsoilswaslessthanthatindepthof20–30or40–50cm.Thesesuggestedthatthemicrobialpopulationwashighbutthebacterialcommunitystructurewassimpleinthetopsoil.ClusterandprinciplecomponentanalysisbasedonDGGEbandingpatternsshowedthatthebacterialcommunitystructurewasa?ectedbysoildepthmoreprimarilythanbymanagements,andthesuccessionofbacterialcommunityasincreaseofsoildepthhasasimilartendencyinthethreemanagements.FourteenpredominatingDGGEbandswereexcisedandsequenced,inwhich6bandswereidentifiedasthetaxaofVerrucomicrobia,2bandsasActinobacteria,2bandsasα-Proteobacteria,andtheother4bandsasδ-Proteobacteria,Acidobacteria,Nitrospira,andunclassifiedbacteria.Inaddition,thesequencesof11DGGEbandswerecloselyrelatedtounculturedbacteria.Thus,thebacterialcommunitystructureinblacksoilwasstable,andthepredominatingbacterialgroupswereuncultured.

简介：AbstractBackground:Coronavirus disease 2019 (Covid-19) remains a serious health threat worldwide. We aimed to investigate whether low molecular weight heparin (LMWH) can promote organ function recovery in moderate Covid-19 pneumonia patients.Methods:We initiated an LMWH protocol in Covid-19 patients with increased D-dimer, body mass index >30 kg/m2 or a history of diabetes from January 18, 2020 at Shanghai Public Health Clinical Center. In this retrospective study, we assigned moderate Covid-19 pneumonia patients admitted between January 18th and April 18, 2020 receiving the LMWH protocol to the LMWH group. Moderate patients who met the inclusion criteria but did not receive LMWH protocol were included in the control group by 1:2 propensity score matching. General clinical information, indicators for renal function, arterial blood gas analyses, arterial blood lactic acid content (mmol/L), and coagulation indexes at 0 day, 3 days, 7 days, and 11 days after admission were recorded and compared between the two groups.Results:There were 41 patients in the LMWH group and 82 patients in the control group. General information in both groups were similar. Compared to the control group, the arterial blood lactic acid content (mmol/L) at day 11 (1.3 [1.1, 1.7] vs. 1.2 [0.9, 1.3], P = 0.016) was reduced in the LMWH group. The estimated glomerular filtration rate (eGFR) in the LMWH group was higher than that in the control group at day 7 (108.54 [89.11, 128.17] vs. 116.85 [103.39, 133.47], P= 0.039) and day 11 (113.74 [94.49, 126.34] vs. 128.31 [112.75, 144.12], P = 0.003). The serum creatinine levels (Scr) in the LMWH group were lower than that in the control group at day 7 (62.13 [51.47, 77.64] vs. 55.49 [49.50, 65.75], P= 0.038) and day 11 (63.35 [50.17, 75.73] vs. 51.62 [44.62, 61.24], P = 0.005).Conclusions:LMWH treatment can reduce arterial blood lactic acid levels and improve eGFR in moderate Covid-19 pneumonia patients. Randomized controlled trials are warranted to further investigate this issue.Trial registration:ChiCTR.org.cn, ChiCTR2000034796.