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What is the prognosis of emphysematous pyelonephritis associated with extended-spectrum beta-lactamases producing microorganisms?

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Asian Journal of Urology 2022年第2期9卷 146-151页

作者： JoséIván Robles-Torres Marco Alberto Ocaña-Munguía JoséGustavo Arrambide-Herrera adrián mauricio martínez-fernández Rodrigo Romero-Mata Lauro Salvador Gómez-Guerra Urology Department Hospital Universitario"Dr.Jose´Eleuterio Gonza´lez"Universidad Auto´noma de Nuevo LeonMonterreyNuevo LeonMexico

Objective:To describe the microbiological characteristics in emphysematous pyelonephritis(EPn),demonstrate the frequency of extended-spectrum beta-lactamase(ESBL)microorganisms,and determine if these microorganisms are associated with the prognosis of patients with ***:We conducted a retrospective study in patients with a diagnosis of EPn in a tertiary care hospital of the northeast region of Mexico during the period from January 2011 to January *** variables were analyzed to determine association with the presence of ESBL-producing *** significance was set with pnts were included;55(87.3%)of them were females,with a median age of 55(interquartile range:45-65)*** management was indicated in 38.1%;42.9%were treated with ureteral stent;12.7%with open or percutaneous drainage;15.8%with early nephrectomy;and 9.5%with delayed *** mortality was 13(20.6%)cases;23(36.5%)cases required admission to the intensive care *** most frequent microorganism isolated was Escherichia coli(n=34,53.9%).ESBL microorganisms were found in 31.7%of the *** significant association of ESBL was found with admission to the intensive care unit,or with increased ***:To our knowledge,this is the first study that evaluates ESBL microorganisms as a prognostic factor in *** factors associated with a poor prognosis in patients with EPn have been *** microbiological factors,specifically ESBL-producing bacteria,do not seem to influence in the prognosis of these patients.

关键词： Emphysematous pyelonephritis Extended spectrum betalactamase Mortality Intensive care unit admission

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Tropical tree community composition and diversity variation along a volcanic elevation gradient

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Journal of Mountain Science 2022年第12期19卷 3475-3486页

作者： Ruben martInez-CAMILO Manuel martInez-MELEndez nayely martInez-MIELEndez Derio Antonio JIMEnez-LOPEZ mauricio JOSE-RIOS Unidad Villa Corzo Facultad de IngenieríaUniversidad de Ciencias y Artes de Chiapas30520 Villa CorzoChiapasMexico Instituto de Ciencias Biológicas Universidad de Ciencias y Artes de Chiapas29039 Tuxtla GutiérrezChiapasMexico Eizia A.C. 29045 Tuxtla GutiérrezChiapasMexico Departamento de Conservación de la Biodiversidad El Colegio de la Frontera Sur29290 San Cristóbal de las CasasChiapasMexico Orquidiario y Jardín Botánico de Comitán Secretaría de Medio Ambiente e Historia Natural30106 Comitán de DomínguezChiapasMexico Instituto de Investigación en Gestión de Riesgos y Cambio Climático Universidad de Ciencias y Artes de Chiapas29039 Tuxtla GutiérrezChiapasMexico

Unraveling the factors that determine variation of diversity in tropical mountain systems is a topic for debate in plant *** is especially true in areas where topography is complex due to volcano elevational gradients and where forests are vulnerable to human *** this study we used a set of climatic(temperature,rainfall,and radiation solar),topographic(elevation,slope aspect,and slope orientation)and human disturbance variables to determine their effect on diversity and composition patterns of a tree community,considering three slope aspects of a tropical volcano in southeastern *** sampled trees in seventy 0.1-ha plots distributed on three slope aspects of the Tacanávolcano along an elevational gradient of 1500 to 2500 *** determined diversity patterns(general tree richness,exponential of Shannon index,and pioneer species richness)with linear regression models,and for beta diversity,we used a dissimilarity index(within and between elevational bands 100 m wide).The effect of a set of environmental and human disturbance variables on tree diversity and community composition was analyzed with general linear models and multivariate analyses,*** registered 2,949 individual trees belonging to 176 species and *** average species richness and alpha diversity per plot were 13(standard deviation±6)and 9(±5),*** tree richness and alpha diversity increased in the middle part(unimodal patterns)of the elevational gradient,but pioneer species richness decreased linearly with *** variance explained by general linear models was greater in richness(32%)than in alpha diversity(25.3%).The most important predictor variables were temperature(elevational gradient),which explained the unimodal pattern(richness and alpha diversity increase at intermediate levels of temperature),and slope orientation,which explained the increase in richness and alpha diversity toward the geographic *** temperature had a signific

关键词： Composition Environmental gradient Tree diversity patterns Tropical humid cloud forest Tropical volcanoes

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基于嵌入式离散裂缝建模的Eagle Ford页岩油复杂水力裂缝综合表征

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石油勘探与开发 2021年第3期48卷 613-619页

作者： FIALLOS mauricio MORALES adrián YU Wei MIAO Jijun 德克萨斯大学奥斯汀分校西德布莱德石油与地质工程系德克萨斯78712美国 SimTech有限责任公司休斯顿77494美国切萨皮克(Chesapeake)公司俄克拉荷马73154美国

使用嵌入式离散裂缝建模(EDFM)方法优化具有复杂裂缝系统的油藏的数值模拟,完善了前人的Eagle Ford页岩油综合描述技术。根据裂缝支撑类型对具有100000多个裂缝面的复杂裂缝系统进行分类后,对井底流压进行了历史拟合,对油田产量进行了预... 详细信息

使用嵌入式离散裂缝建模(EDFM)方法优化具有复杂裂缝系统的油藏的数值模拟,完善了前人的Eagle Ford页岩油综合描述技术。根据裂缝支撑类型对具有100000多个裂缝面的复杂裂缝系统进行分类后,对井底流压进行了历史拟合,对油田产量进行了预测,以更深入地了解复杂裂缝支撑效果对产量的影响。在为不同支撑类型裂缝组分配不同的压实曲线后估算的压降表明,如果采用EDFM方法而不是非结构网格方法进行裂缝建模和筛选,裂缝模型表达更精确,有效波及面积可能会小于非结构网格方法。方法优化后,能够将EDFM与第三方裂缝扩展模拟器自动耦合,同时考虑支撑剂强度沿复杂裂缝系统的变化。该方法能够从裂缝评价和多个全井眼的拟三维裂缝扩展结果中准确地模拟复杂的裂缝延伸和井间干扰,从而更准确地评价完井效果。

关键词：嵌入式离散裂缝建模复杂裂缝水力裂缝裂缝网络油藏模拟页岩油

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Effect of phacoemulsification on intraocular pressure in patients with primary open angle glaucoma and pseudoexfoliation glaucoma

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International Journal of Ophthalmology(English edition) 2017年第9期10卷 1374-1378页

作者： Jesus Jimenez-Roman Gabriel Lazcano-Gomez Karina martínez-Baez mauricio Turati Rosario Gulías-Canizo Luis F.Hernández-Zimbrón Lenin Ochoa-De la Paz Rubén Zamora Roberto Gonzalez-Salinas Glaucoma Department Asociation to Prevent Blindness inMexicoMexico City 04030Mexico Research Department Asociation to Prevent Blindness inMexicoMexico City 04030Mexico Cell Biology Department Advanced Research CenterI.P.N.(CINVESTAV)in Mexico CityMexico City 07360Mexico

AIM：To compare the effect of phacoemulsification on intraocular pressure（IOP）in patients with primary open angle glaucoma（POAG）and pseudoexfoliation glaucoma（PXG）.METHODS：A retrospective comparative case series conducted at the Glaucoma Department at the Association to Prevent Blindness in *** study enrolled consecutive patients having phacoemulsification with intraocular lens（IOL）implantation and a diagnosis of POAG or *** about IOP values and number of glaucoma medications used was collected at baseline,1,3,6 and12mo ***：The study enrolled 88 patients（88 eyes）.After phacoemulsification,there was a statistically significant reduction in IOP values and glaucoma medications use compared to baseline in both POAG and PXG patients（P〈0.001）.In the POAG group,a 20%decrease in IOP values was evidenced,and a 56.5%reduction in the number of medications used at the one-year *** PXG group showed a 20.39%,and a 34.46%decrease in IOP and number of medications used,respectively.A significant difference in the meanΔIOP（postoperative changes in IOP）was evidenced between groups（P=0.005）.The reduction of the postsurgical IOP mean values in both groups,the POAG group showed a greater reduction in IOP values compared to the PXG ***：In both types of glaucoma,phacoemulsification cataract surgery can result in a significant IOP reduction（20%）over a 12mo follow-up *** number of medications used is also significantly reduced up to 12mo after surgery,especially in the PXG group.

关键词： cataract surgery pseudoexfoliation glaucoma secondary glaucoma primary open angle glaucoma intraocularpressure

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Host-derived biomarkers in gingival crevicular fluid for complementary diagnosis of apical periodontitis

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World Journal of Stomatology 2014年第2期3卷 19-24页

作者： mauricio Garrido Andrea Dezerega Alfredo Castro-martínez Marcela Hernández Laboratorio de Biología Periodontal Facultad de Odontología Universidad de Chile Santiago 8380492 Chile Departamento de Odontología Conservadora Facultad de Odontología Universidad de Chile Santiago 8380492 Chile Departamento de Patología y Medicina Oral Facultad de Odontología Universidad de Chile Santiago 8380492 Chile

Apical periodontitis(AP) develops as a result of the host's immune inflammatory response to pulpal infection of the dental root canals that leads to the generation of an apical lesion of endodontic origin(ALEO) and potentially to systemic metabolic alterations. Misdiagnosed ALEO is not infrequent due to the lack of diagnostic tools to differentiate apical lesions of different natures. Despite the conservative endodontic treatment shows a high success rate, there are refractory cases that can not be identified early enough during follow up. This evidences the need to develop complementary diagnostic tools, such as oral fluid biomarker analysis. Gingival crevicular fluid(GCF) is a serum transudate that becomes an exudate under inflammatory conditions, carrying molecules from local periodontal tissuesand general circulation than can be harvested noninvasively. We aimed to review the available literature analyzing GCF composition in AP patients to evaluate whether GCF has any potential for complementary diagnosis. To the date, only few studies addressing changes of GCF components in AP are available. Most studies support GCF modifications in specific components in APaffected teeth, suggesting that it might reflect periapical inflammation. GCF has potential for diagnostic tool, treatment follow-up and eventually to assess systemic comprise.

关键词： Gingival crevicular fluid Periapical periodontitis Biomarkers Diagnosis Prognosis

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Cooperating CoScheduling:A Coscheduling Proposal Aimed at non-Dedicated Heterogeneous nOWs

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Journal of Computer Science & Technology 2007年第5期22卷 695-710页

作者： Francesc Giné Francesc Solsona mauricio Hanzich Porfidio Hernández Emilio Luque Department of Computer Science Universitat de Lleida Spain Department of Computer Architecture & Operating Systems Universitat Autònoma de Barcelona Spain

Implicit coscheduling techniques applied to non-dedicated homogeneous networks Of Workstations （nOWs） have shown they can perform well when many local users compete with a single parallel job. Implicit coscheduling deals with minimizing the communication waiting time of parallel processes by identifying the processes in need of coscheduling through gathering and analyzing implicit runtime information, basically communication events. Unfortunately, implicit coscheduling techniques do not guarantee the performance of local and parallel jobs, when the number of parallel jobs competing against each other is increased. Thus, a low efficiency use of the idle computational resources is achieved. In order to solve these problems, a new technique, named Cooperating CoScheduling （CCS）, is presented in this work. Unlike traditional implicit coscheduling techniques, under CCS, each node takes its scheduling decisions from the occurrence of local events, basically communication, memory, Input/Output and CPU, together with foreign events received from cooperating nodes. This allows CCS to provide a social contract based on reserving a percentage of CPU and memory resources to ensure the progress of parallel jobs without disturbing the local users, while coscheduling of communicating tasks is ensured. Besides, the CCS algorithm uses status information from the cooperating nodes to balance the resources across the cluster when necessary. Experimental results in a non-dedicated heterogeneous nOW reveal that CCS allows the idle resources to be exploited efficiently, thus obtaining a satisfactory speedup and provoking an overhead that is imperceptible to the local user.

关键词： job scheduling non-dedicated and heterogeneous nOW computing resource allocation

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Auditory function in symptomatic patients recovered from SARS-CoV-2 and unexposed patients:An analytical cross-sectional study

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Journal of Otology 2023年第3期18卷 118-124页

作者： Katherin Andrea Borda Pedraza Sergio mauricio Moreno Lopez Javier Amaya-nieto Liliana Akli Serpa Ginna Paola Saavedra martínez mauricio Ernesto Quinche Pardo Alberto Pena Valenzuela Otorhinolaryngology Department Universidad Nacional ColombiaColombia Epidemiology Department Universidad de Los AndesColombia Health Systems and Services Research Group Universidad Nacional de ColombiaBogotaColombia Audiology Department Universidad Nacional de ColombiaColombia Health and Social Protection Ministry Colombia Universidad nacional Colombia Colombia Otorhinolaryngology Department Universidad Nacional de ColombiaColombia

Objective:To describe audiological symptoms,audiometric profile,and distortion product otoacoustic emission in symptomatic patients recovering from SARS-CoV-2 infection(positive RT-PCR test)and asymptomatic patients(negative RT-PCR test).Methods:An analytical cross-sectional study was conducted using data obtained from clinical charts,physical examination,audiometry,and distortion product otoacoustic emission on 40 patients[case patients(CP)]recovering from SARS-CoV-2 infection diagnosed by a positive RT-PCR test and 22asymptomatic participants with a negative RT-PCR test[non-case(nC)].Results:Sixty-two patients(mean age:31.1 and 28.2 years in the CP and nC groups,respectively)were *** participants were young without significant comorbidities,risk factors for hearing loss or otological ***(5%),tinnitus(17.5%)and aural fullness/hearing loss(35%)were found in the CP group.A statistically significant difference was found in specific frequencies(1000,4000,and 8000 Hz)and pure tone average(low and high conversational frequencies with increased threshold in the PC group compared with the nC group),which was not found in distortion product otoacoustic ***:Audiovestibular symptoms are frequent in symptomatic patients recovering from SARS-CoV-2 ***-CoV-2 infection was consistently associated with an increased audiometric hearing threshold at specific frequencies and low tone average.

关键词： SARS-CoV-2 Cochlear diseases Pure tone audiometry Otoacoustic emissions Hearing loss Otological symptoms

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A MIXED VIRTUAL ELEMEnT METHOD FOR THE BOUSSInESQ PROBLEM On POLYGOnAL MESHES

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Journal of Computational Mathematics 2021年第3期39卷 392-427页

作者： Gabriel n.Gatica mauricio Munar Filander A.Sequeira CI^2 MA and Departamento de Ingenieria Matemitica Universidad de ConcepcionCasilla 160-CConcepcionChile Escuela de Matemaitica Universidad NacionalCampus Omar DengoHerediaCosta Rica

In this work we introduce and analyze a mixed virtual element method(mixed-VEM)for the two-dimensional stationary Boussinesq *** continuous formulation is based on the introduction of a pseudostress tensor depending nonlinearly on the velocity,which allows to obtain an equivalent model in which the main unknowns are given by the aforementioned pseudostress tensor,the velocity and the temperature,whereas the pressure is computed via a postprocessing *** addition,an augmented approach together with a fixed point strategy is used to analyze the well-posedness of the resulting continuous *** the discrete problem,we follow the approach employed in a previous work dealing with the navier-Stokes equations,and couple it with a VEM for the convection-diffusion equation modelling the *** precisely,we use a mixed-VEM for the scheme associated with the fluid equations in such a way that the pseudostress and the velocity are approximated on virtual element subspaces of H(div)and H^(1),respectively,whereas a VEM is proposed to approximate the temperature on a virtual element subspace of H^(1).In this way,we make use of the L^(2)-orthogonal projectors onto suitable polynomial spaces,which allows the explicit integration of the terms that appear in the bilinear and trilinear forms involved in the scheme for the fluid *** the other hand,in order to manipulate the bilinear form associated to the heat equations,we define a suitable projector onto a space of polynomials to deal with the fact that the diffusion tensor,which represents the thermal conductivity,is ***,the corresponding solvability analysis is performed using again appropriate fixed-point ***,Strang-type estimates are applied to derive the a priori error estimates for the components of the virtual element solution as well as for the fully computable projections of them and the postprocessed *** corresponding rates of convergence are als

关键词： Boussinesq problem Pseudostress-based formulation Augmented formulation Mixed virtual element method.High-order approximations

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In Vitro-Propagation of Agave tequilana Weber *** in a Temporary Immersion System

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Phyton-International Journal of Experimental Botany 2022年第1期91卷 83-96页

作者： Otilio Vázquez-martínez Héctor Gordon núñez-Palenius Eugenio M.Pérez-Molphe Balch mauricio Valencia-Posadas Luis Pérez-Moreno Graciela M.L.Ruiz-Aguilar M.Gómez-Lim División de Ciencias de la Vida Universidad de GuanajuatoIrapuato36500México Departamento de Química Centro de Ciencias BásicasUniversidad Autónoma de AguascalientesAguascalientes20131México Departamento de Ingeniería Genética CINVESTAV Unidad IrapuatoIrapuato36500México

In Mexico,there is a need to produce large quantities of plantlets for the establishment and replanting of blue(***)agave production *** of these plots are within the origin denomination area(DOT,Spanish acronym)of the distilled product of this plant,known as *** objective of this study was to develop an in vitropropagation protocol for Agave tequilana Weber *** using segmented stems in both:solid and liquid media.A disinfection and in vitro technique were developed to obtain shoots,through plantlets collected in commercial plots,which attained 100%surface-disinfection and budding *** the multiplication stage,the effects of 6-Benzylaminopurine(BA)(0.0,4.4 and 13.2μM)and kinetin(0.0,9.4,18.8 and 37.6μM)were evaluated on lateralshoot production of segmented sagittal *** were cultivated on Murashige&Skoog(MS)medium,with the addition of 3.0%sucrose and 8 g L−1 *** was observed that BA and kinetin increased the number of shoots per explant,obtaining up to 18 and 26,***,it was found that just the sagittal segmentation of explants increased axillary *** the other hand,segmented-stem bases were grown in MS liquid medium with 3.0%sucrose,inside a RITAsystem,programmed by a 5 min immersion step with a frequency of every 4 *** effect of Indole−3-Acetic acid(IAA)(0.57,2.9,5.7μM)was evaluated,while maintaining a concentration of BA(13.2μM).It was observed that the greatest concentration of IAA led to the formation of more than 20 buds per *** results offer a new methodology to increase the efficiency of *** Weber ***-in vitro multiplication by sagittal segmentation of stems and the addition of BA and/or IAA.

关键词： Plant tissue culture stem-disk culture tequila in vitro culture

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Seed bank dynamics of an invasive alien species, Helianthus annuus L.

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Journal of Plant Ecology 2020年第3期13卷 313-322页

作者： Alejandro Presotto fernando Hernández mauricio Casquero Roman Vercellino Claudio Pandolfo Mónica Poverene Miguel Cantamutto Dpto.Agronomía Universidad Nacional del Sur(UNS)San Andrés 8008000 Bahía BlancaArgentina CERZOS Universidad Nacional del Sur(UNS)-CONICETCamino La Carrindanga Km 78000 Bahía BlancaArgentina Corteva Agriscience.Integrated field Sciences RN N178 Km 112700 PergaminoArgentina Estación Experimental Agropecuaria Hilario Ascasubi Instituto Nacional de Tecnología Agropecuaria(INTA)RN N3 Km 7948142 Hilario AscasubiArgentina

Aims The ability to form persistent seed banks is one of the best predictors of species’potential to establish in new *** sunflower is native to north America where the formation of persistent seed banks is promoted by disturbance and it plays a key role on the establishment and persistence of native ***,the role of the seed banks on the establishment and persistence of invasive populations has not been ***,we evaluated the role of seed bank and disturbance on the establishment and fitness,and seed persistence in the soil in several sunflower biotypes collected in ruderal(wild Helianthus annuus)and agrestal(natural crop–wild hybrid)habitats of Argentina as well as volunteer populations(progeny of commercial cultivars).Methods In a seed-bank experiment,we evaluated emergence,survival to reproduction,survival of emerged seedlings,inflorescences per plant and per plot under disturbed and undisturbed conditions over 2 years;in a seed-burial experiment,we evaluated seed persistence in the soil over four springs(6,18,30 and 42 months).Important Findings Overall,seedling emergence was early in the growing season(during winter),and it was promoted by disturbance,especially in the first *** this,the number of inflorescences per plot was similar under both conditions,especially in *** the second year,emergence from the seed bank was much lower,but the survival rate was *** the seed-burial experiment,genetic differences were observed but seeds of ruderals and agrestals persisted up to 42 months while seeds of the volunteer did not persist longer than 6 *** agrestal biotype showed an intermediate behavior between ruderals and volunteers in both *** findings showed that wild and crop–wild sunflower can form persistent seed banks outside its native range and that disturbance may facilitate its establishment in new areas.

关键词： seed bank seed persistence wild sunflower invasive alien species ruderal agrestal

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