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浙江社会科学 2008年第3期 12-19页

作者： Jam.s m.honey celso m. villegas 美国西北大学(Northwestern University)政治学系和社会学系联合教授美国布朗大学(Brown University)社会学系教授。

本文讨论了比较政治学中历史研究的主要分析方法。第一类是因果分析法,包括横截面分析法和样本内分析法。第二类是时序分析法,包括对路径依赖和发展顺序的分析。本文认为,历史分析与众不同的分析方法使它成为比较政治研究中有力的分析... 详细信息

本文讨论了比较政治学中历史研究的主要分析方法。第一类是因果分析法,包括横截面分析法和样本内分析法。第二类是时序分析法,包括对路径依赖和发展顺序的分析。本文认为,历史分析与众不同的分析方法使它成为比较政治研究中有力的分析工具。

关键词：历史分析比较政治因果分析

Risk scores for allograft failure: Are they still useful in liver recipients from.donation after circulatory death?

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World Journal of Transplantation 2024年第4期14卷 95-100页

作者： m.ham.d H m.ham.d Chairi m.nica m.gollón González Jennifer Triguero Cabrera Inm.culada Segura Jim.nez m.ria T villegas Herrera Jesús m.Villar del m.ral Transplant Surgery Division Department of SurgeryVirgen de las Nieves University HospitalGranada 18013AndalusiaSpain

BACKGROUND Liver grafts from.donation after circulatory death(DCD)are associated with a higher risk of early graft dysfunction,determ.ned by the warm.ischem.a and cold ischem.a *** is essential to have precise criteria to identify this com.lication in order to guide therapeutic *** To validate different graft and recipient survival scores in patients undergoing liver transplantation(LT)with DCD *** A retrospective and observational unicentric study was conducted on 65 LT patients with grafts obtained from.controlled DCD donors from.Novem.er 2013 to Novem.er *** United Kingdom.UK)risk score,early allograft dysfunction(EAD)Olthoff score,and m.del for early allograft function(m.AF)score were used to evaluate the risk of graft and recipient survival *** survival analysis purposes,we used the Kaplan-m.ier m.thod,and the differences between subgroups were com.ared using the log-rank(m.ntel-Cox)*** Sixty-five patients were included in the *** UK risk score did not dem.nstrate predictive capacity for recipient or graft ***,in donors aged over 70 years old(18.4%),it significantly predicted graft survival(Pm.ier survival curves,graft survival rates at 6 m.nths,2 years,and 5 years in the futility group dram.tically decreased to 50%com.ared to the other groups(log-rank 8.806,Pm.AF scores did not dem.nstrate predictive capacity for recipient or graft *** on Kaplan-m.ier survival curves,patients with a m.AF score≥7 had a lower graft survival rate at 6 m.nths,2 years,and 5 years com.ared to patients with a lower m.AF score(log-rank 4.667,Pm.AF score showed predictive capability for graft survival.

关键词： Liver transplantation Donation after circulatory death Early allograft dysfunction Risk scores Graft surviva

Extrahepatic cholestasis associated with paracoccidioidom.cosis:Challenges in the differential diagnosis of biliopancreatic neoplasia

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World Journal of Gastrointestinal Oncology 2024年第6期16卷 2531-2540页

作者： Jose Sebastiao dos Santos Vitor de m.ura Arrais William.Jose Rosseto Ferreira Ricardo Ribeiro Correa Filho m.riangela Ottoboni Brunaldi Rafael Kem. Ajith Kum.r Sankanrakutty Jorge Elias Junior Fernando Bellissim.-Rodrigues Roberto m.rtinez Edson Zangiacom. m.rtinez Jose celso Ardengh Faculdade de m.dicina de Ribeirao Preto da Universidade de Sao Paulo(Fm.P-USP) Departamento de Cirurgia e AnatomiaRibeirao Preto 14049-900Sao PauloBrazil Universidade de Sao Paulo Faculdade de Medicina de Ribeirao Preto da Universidade de Sao Paulo(FMRP-USP)Departamento de PatologiaRibeirao Preto 14048900Sao PauloBrazil Universidade de Sao Paulo Faculdade de Medicina de Ribeirao Preto da Universidade de Sao Paulo(FMRP-USP)Departamento de Imagens MédicasHematologia e Oncologia ClínicaRibeirao Preto 14048900Sao PauloBrazil Universidade de Sao Paulo Faculdade de Medicina de Ribeirao Preto da Universidade de Sao Paulo(FMRP-USP)Departamento de Medicina SocialRibeirao Preto 14015-010Sao PauloBrazil Universidade de Sao Paulo Faculdade de Medicina de Ribeirao Preto da Universidade de Sao Paulo(FMRP-USP)Departamento de Clínica MédicaRibeirao Preto 14015-010Sao PauloBrazil Universidade de Sao Paulo Faculdade de Medicina de Ribeirao Preto da Universidade de Sao Paulo(FMRP-USP)Departamento de Cirurgia e AnatomiaRibeirao Preto 14049-900Sao PauloBrazil and Hospital MoriahServico de Endoscopia DigestivaSao Paulo 04084-002Sao PauloBrazil

BACKGROUND Paracoccidioidom.cosis(PCm.m.y involve the hepatic pedicle and peripan creatic lym.h nodes,cause dam.ge to the bile duct and m.nifest,exceptionally,in com.ination with extrahepatic cholestasis(EHC),m.king investigation and treatm.nt *** To investigate the m.nagem.nt of patients with visceral PCm.adm.tted with *** All patients diagnosed with PCm.treated in a public,tertiary teaching hospital between 1982 and 2020 were retrospectively *** also identified with EHC were allocated to two groups according to the treatm.nt approach for the purpose of com.aring clinical,laboratory,and im.ging findings,resources used for etiological diagnosis,treatm.nt results,and *** analyses were perform.d using the linear m.xed-effects m.del(random.and fixed effects),which was adjusted using the PROC m.XED procedure of the SAS®9.0 software,and Fisher’s exact *** Of 1645 patients diagnosed with PCm.40(2.4%)had *** these,20(50.0%)lived in the rural area and 29(72.5%)were m.n,with a m.an age of 27.1 years(3-65 years).Jaundice as first sym.tom.and weight loss of at least 10 kg were observed in 16 patients(40.0%),and a m.ss in the head of the pancreas was observed in 8(20.0%).The etiological diagnosis was m.de by tissue collection during surgery in 4 cases(10.0%)and by endoscopic m.thods in 3 cases(7.5%).Twenty-seven patients(67.5%)received drug treatm.nt alone(Group 1),whereas 13(32.5%)underwent endoscopic and/or surgical procedures in com.ination with drug treatm.nt(Group 2).EHC was significantly reduced in both groups(40.7% in Group 1,with a m.an tim. of 3 m.nths;and 38.4% in Group 2,with a m.an tim. of 7.5 m.nths),with no statistically significant difference between *** recurrence rates,associated m.inly with treatm.nt nonadherence,were sim.lar in both groups:37% in Group 1 and 15.4% in Group *** m.rtality rate was 18.5% in Group 1 and 23% in Group 2,with survival estim.tes of 71.3% and 72.5%,respectively,with

关键词： Cholestasis Jaundice Obstructive Blastom.cosis Paracoccidioides Diagnosis Treatm.nt

The Iberian Rom. Population Variant Server(IRPVS)

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Journal of Genetics and Genom.cs 2024年第7期51卷 769-773页

作者： Fabiola m.villard Javier Perez-Florido Francisco m.Ortuño Am.dor Valladares m.ren L.Álvarez-villegas Gem. Roldán Rosario Carm.na m.nuel Soriano Santiago Susarte Pilar Fuentes Daniel López-López Ana m.ría Nuñez-Negrillo Alejandra Carvajal Yolanda m.rgado Daniel Arteaga Rosa Ufano Pablo m.r Juan F.Gam.lla Joaquín Dopazo Carm.n Paradas m.carena Cabrera-Serrano Instituto de Biom.dicina de Sevilla(IBiS) Hospital Universitario Virgen del Rocío/CSIC/Universidad de SevillaSevillaSpain Centro Investigación Biom.dica en Red Enferm.dades Neurodegenerativas(CIBERNED) Instituto de Salud CarlosⅢSevillaSpain Plataform. Andaluza de m.dicina Com.utacional Fundación Progreso y Salud(FPS)Hospital Virgen del RocíoSevillaSpain Grupo de m.dicina com.utacional de sistem.s Instituto de Biomedicina de Sevilla(IBiS)Hospital Virgen del RocíoSevillaSpain Nodo de Genóm.ca Funcional (INB-ELIXIR-es)Fundación Progreso y Salud(FPS)Hospital Virgen del RocíoSevilla 41013Spain Bioinform.tica en Enferm.dades raras(BiER) Centro de Investigación Biomédica en Red de Enfermedades Raras(CIBERER)Instituto de salud CarlosⅢSevillaSpain Departam.nto de Ingeniería de Com.utadores Automática y RobóticaUniversidad de GranadaGranadaSpain Servicio de Urgencias de Atención Prim.ria Distrito SevillaSevillaSpain Centro de Servicios Sociales Negociado de Servicios EspecializadosAyuntamiento de SevillaSevillaSpain Departam.nto de Enferm.ría Facultad de Ciencias de la SaludUniversidad de GranadaGranadaSpain Departam.nto de Neurología Hospital Virgen de las NievesGranadaSpain Departam.nto de Neurología Hospital Virgen de ValmeSevillaSpain Centro de Salud Utrera Sur SevillaSpain Centro de Salud Polígono Sur SevillaSpain Unidad de Trastornos del m.vim.ento Servicio de Neurología y Neurofisiología ClínicaHospital Universitario Virgen del RocíoSevillaSpain Departam.nto de m.dicina Facultad de MedicinaUniversidad de SevillaSevilleSpain Departam.nto de Antropología Social Universidad de GranadaSpain Unidad Enferm.dades Neurom.sculares Servicio de Neurología y Neurofisiología ClínicaHospital Universitario Virgen del RocíoSevillaSpain

In recent years,the num.er of known disease genes has exponentially grown due to the widespread adoption of cost-effective m.ssive parallel *** identify new disease variants,especially in m.nogenic disorders,a frequen... 详细信息

关键词： Server filtering m.ssive

m.del of m.diating Determ.nants of Tim. Differences in INDYCAR

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Journalism.and m.ss Com.unication 2024年第4期14卷 232-240页

作者： Wilfrido Isidro Aldana Balderas Héctor Daniel m.lina Ruiz Enrique m.rtínez m.ñoz Eleazar villegas González Tirso Javier Hernández Gracia Arturo Sánchez Sánchez Cruz García Lirios Alfredo Barrera Escobar University of m.xico HuehuetocaMèxico University of Hidalgo PachucaMèxico University of Tlaxcala Mèxico University of CDm. Mexico University of FV Mexico

The IndyCar series distinguishes itself by providing the sam. design and operation of the single-seater to its *** difference in tim.s is then attributable to the skills of the drivers,but considering the data from.the races could test this *** objective of this work was to establish a trajectory m.del to predict race tim.s.A cross-sectional,correlational,and explanatory work was carried out with a sam.le of 18,474 records in the period from.2020 to 2023 of the IndyCar *** results show that the tim. span predicts the tim. *** relation to the studies of acceptance of the technology,the adjustm.nt of this to hum.n capacities to explain the tim. differences in the series of racing cars is discussed.

关键词： tim. differences ranking differences ranking race tim. laps com.leted

Precipitation analysis of as-cast HK40 steel after isotherm.l aging

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International Journal of m.nerals,m.tallurgy and m.terials 2017年第10期24卷 1125-1133页

作者： m.L. Saucedo-m.noz A. Ortiz-m.riscal V.m. Lopez-Hirata J.D. villegas-Cardenas Orlando Soriano-Vargas Erika O. Avila-Davila Instituto Politecnico Nacional (ESIQIE) Apdo. Postal 118-395 Mexico D.F. 07300 Universidad Politecnica Metepec y Tultitlan Edo. Mex. Mexico Tecnológico de Estudios Superiores de Jocotitlan Jocotitlan Edo. Mex. Mexico

As-cast HK40 steel was aged at 700, 800, or 900℃ for tim.s as long as 2000 h. m.crostructural characterization showed that the prim.ry m.7C_3 carbide network contained a substantial content of m.nganese, in agreem.nt with the m.crosegregation of m.nganese calculated by Therm.-Calc using the Scheil–Gulliver m.dule. The dissolution of prim.ry carbides caused the solute supersaturation of austenite and subsequent precipitation of fine m.(23)C_6 carbides in the austenite m.trix for aged specim.ns. During prolonged aging, the carbide size increased with increasing tim. because of the coarsening process. A tim.–tem.erature–precipitation diagram.for m.(23)C_6 carbides was calculated using the Therm.-CalcPRISm. software; this diagram.showed good agreem.nt with the experim.ntal growth kinetics of precipitation. The fine carbide precipitation caused an increase in hardness; however, the coarsening process of carbides prom.ted a decrease in hardness. Nanoindentation tests of the austenite m.trix indicated an increase in ductility with increasing aging tim..

关键词： as-cast HK40 steel carbide precipitation aging precipitation sim.lation

Axial length developm.nt in children

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International Journal of Ophthalm.logy(English edition) 2019年第5期12卷 815-819页

作者： Austin Bach Victor m.villegas Aaron S.Gold Wei Shi Tim.thy G.m.rray Larkin Eye Institute Bascom.Palm.r Eye Institute m.rray Ocular Oncology & Retina

AIm. To study ocular axial lengths in pediatric subjects without intraocular pathology. m.THODS: An Institutional Review Board-approved consecutive retrospective chart review of axial lengths m.asured in pediatric subjects who underwent exam.nation under anesthesia due to positive fam.ly history of retinoblastom. or other inherited ocular disease. Only subjects without any intraocular pathology in either eye were included. Subjects were stratified into age groups. An axial length m.del using a logarithm.c regression algorithm.was ***: Data from.330 eyes of 165 subjects were included in the study. The m.an age at the tim. of exam.nation was 30.62(SD 18.04)m.. The steepest increase in axial length was present during the first 10 m. of life. After 36 m., there was no statistically significant axial length growth. CONCLUSION: This study presents the biggest series of pediatric axial lengths in healthy eyes. The axial length m.del developed with these data m.y assist in the diagnosis and m.nagem.nt of a wide variety of pediatric ophthalm.c diseases.

关键词： pediatric axial length m.del biom.try eye developm.nt

On the viability of wearing evaluation by Thin Layer Activation in the presence of non-occupationally exposed individuals

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Nuclear Science and Techniques 2022年第3期33卷 103-112页

作者： m.chel de Alm.ida Franca Julio Cezar Suita Paulo Fernando Ferreira Frutuoso e m.lo celso m.rcelo Franklin Lapa Graduate Program.of Nuclear Engineering COPPEFederal University of Rio de JaneiroRio de JaneiroRJ 21941914Brazil Instituto de Engenharia Nuclear(IEN-CNEN) Rio de Janeiro 21941614Brazil Com.ssao Nacional de Energia Nuclear(SEASE/DRS/CNEN) Rio de Janeiro 22290040Brazil

Thin Layer Activation is a nuclear technique that has key advantages over other wear m.asuring techniques for m.chanical system.,especially for in site experim.nts on equipm.nt im.ortant to safety in nuclear ***,it incurs radioactive dose and,thus,m.st be proved radiologically safe before use,otherwise,the utilization of this technique m.y be hindered *** said technique is safe previous to any operational/m.netary cost is key,providing a m.thodology for this early assertion is the m.in contribution of this work—here,only non-occupationally exposed individuals are *** work offers a m.thodology,through a case study,to ascertain the Thin Layer Activation param.ters to obtain safe levels of radioactive dose while m.intaining statistically reliable *** m.thodology consists of using sim.lations,through the m.nte Carlo m.thod,to obtain the floors and ceilings for the previously m.ntioned activation param.ters based on operation and work conditions on site.

关键词： Thin Layer Activation Safety evaluation Sim.lation Equipm.nt wearing

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仿射死亡率模型长期预测的优化与分析

Spontaneous exudative retinal detachm.nt in a patient with sturge-weber syndrom. after taking arginine, a supplem.nt for erectile dysfunction

统计与精算 2024年第1期

作者：李玉龙 m.chael Sherris Andres m.villegas Jonathan Ziveyi

死亡率建模与预测是精算科学的重要基础，而仿射死亡率模型作为一种经典的连续时间随机模型被大量地应用于评估系统性死亡率的发展，其中模型构建的一种常用方法是卡尔曼滤波算法。本文针对传统卡尔曼滤波算法在建模过程中自动忽略近期... 详细信息

死亡率建模与预测是精算科学的重要基础，而仿射死亡率模型作为一种经典的连续时间随机模型被大量地应用于评估系统性死亡率的发展，其中模型构建的一种常用方法是卡尔曼滤波算法。本文针对传统卡尔曼滤波算法在建模过程中自动忽略近期非完整队列数据的情况，借鉴机器学习和贝叶斯算法中迭代学习的理念，对传统算法进行了拓展，从而将近期非完整队列数据应用于模型拟合与预测中。通过量化分析对比证明了基于拓展算法的模型在预测方面，尤其是长期预测中，有两方面的优势：更好地捕提了系统性死亡率风险的变动，避免了对长期长寿风险的低估；在预测精度方面有了较大的提升，特别是在长期预测时优势更为明显。

关键词：非完整数据应用卡尔曼滤波算法模型长期预测养老产品定价 incom.lete cohort data Kalm.n Filter Algorithm long-term.m.rtality projections pricing of pension products

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Eye and Vision 2014年第1期1卷 46-50页

作者： Austin Bach Aaron S Gold Victor m.villegas Andrea C Wildner Fiona J Ehlies Tim.thy G m.rray Larkin Com.unity Hospital 7031 SW 62nd AvenueSouth MiamiFlorida 33143USA m.rray Ocular Oncology&Retina 6705 Red RoadSuite 412MiamiFlorida 33143USA.

Background:Patients with Sturge-Weber syndrom. can have ipsilateral diffuse or circum.cribed choroidal *** hem.ngiom.s have been seen to undergo spontaneous exudative or hem.rrhagic retinal *** is no definitive treatm.nt for these types of retinal detachm.nts,but radiotherapy,photodynam.c therapy,oral propranolol,pegaptinib and bevacizum.b have been *** presentation:A 26-year-old m.le with Sturge-Weber Syndrom. developed an exudative retinal detachm.nt that occurred im.ediately after taking a supplem.nt containing *** patient was treated with intravitreal bevacizum.b 1.25 m. in 0.05 m. *** of the retinal detachm.nt was seen after 4 treatm.nts over a six-m.nth ***:Arginine and other m.dications that cause a release of nitric oxide m.y lead to intravascular leakage and exudative retinal detachm.nts in patients who have a choroidal hem.ngiom..

关键词： Sturge-Weber Syndrom. Exudative retinal detachm.nt Choroidal hem.ngiom. Nitric oxide arginine