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Fiber laser with simultaneous multi-wavelength Er/Yb passively Q-switched and single-wavelength Tm gain-switched operations

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Photonics Research 2019年第6期7卷 608-614页

作者： J.ALANIZ-BAYLON M.DURAN-SANCHEZ R.I.ALVAREZ-TAMAYO B.POSADA-RAMIREZ M.BELLO-JIMENEZ B.IBARRA-ESCAMILLA a.a.castillo-guzman E.A.KUZIN Instituto Nacional de Astrofísica óptica y Electrónica (INAOE)L. E. Erro 1 Sta. Ma. Tonantzintla Pue. 72824 Mexico CONACyT-Instituto Nacional de Astrofísica óptica y ElectrónicaA. P. 51 y 216 Pue. 72000 Mexico CONACyT-Universidad Autónoma de Nuevo León Av.Universidad S/NSan Nicolas de los Garza N. L. 66451 Mexico Instituto de Investigación en Comunicación óptica Universidad Autónoma de San Luis Potosí Av. Karakorum 1470 S. L. P. 78210 Mexico Universidad Autónoma de Nuevo León Av.Universidad S/NSan Nicolas de los Garza N. L. 66451 Mexico

We report the experimental investigation of an all-fiber multi-wavelength passively Q-switched Er/Yb laser with simultaneous gain-switched pulsed operation by using a thulium-doped fiber as a saturable *** emission is obtained in three wavelength regions with central peaks at around 1546 nm, 1561 nm, and1862 nm. Multi-wavelength emission with separation of approximately 1 nm is obtained around the wavelength regions of 1546 nm and 1561 nm. Stable laser pulses are generated in the pump power range from 3.6 W to7.3 W.

关键词： Fiber laser multi-wavelength

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Expressions of＂Conviviality＂ in Everyday Life From a Communal Praxis

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Psychology Research 2013年第2期3卷 95-103页

作者： Maria del Rocio guzman Benavente, Maria de la Luz Ortiz Vazquez, Laura Emestina Barrag/m Ledesma Maria Teresita castillo Leon Universidad Juarez del Estado de Durango Durango M6xico Universidad Aut6noma de Yucatan Yucatan Mexico

The paper presents a preview of the results of the project "Community Violence Prevention" conducted in an awareness phase in three urban neighborhoods of the city of Durango, Durango, and Mexico from August to December 2011, involving children, adolescents, and women. The aim was to promote cordial neighborly relations through the coexistence of these population groups, taking as a meeting point the different workshops within the project implemented to counter expressions of violence in everyday life practices of these people. This exercise is part of an institutional project intervention named Social Praxis and Sociocultural Identity Processes, carried out by the Faculty of Psychology and Therapy of Human Communication of the UJED (Universidad Juarez del Estado de Durango) in different contexts of the state capital city since 2007, working along with federal, state, and municipal government agencies. The proposed project intervention works generating environments that promotes a healthy and wellbeing in the quality of life of the population (Rozas, 1998), promoting the growth of participants for its reconstruction as people and social subjects through processes of self-reflection, formation, and/or redefinition of psychosocial support networks among the settlers themselves who participate in the workshops.

关键词：生活质量社区城市街区社会实践心理治疗生成环境项目实施文化认同

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Post-Mortem Study of Refractory Concretes Exposed to Corrosive Effect of Synthetic Slag of Petroleum Coke

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材料科学与工程（中英文版） 2010年第10期4卷 24-33页

作者： Rodrigo Puente Ornelas Ana Maria guzman Hernandez Tushar Kanty Das Roy Guadalupe Alan castillo Rodriguez Carlos Javier Lizcano Zulaica Patricia del Carmen Zambrano Robledo Doctoral Program of Materials Engineering Faculty of Mechanical and Electrical Engineering Autonoma University of Nuevo Leon Av. Universidad S/N Cd. Universitaria San Nicolas de los Garza C.P. 66450 Nuevo Le6n Mexico

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评价儿科急性呼吸窘迫综合征临床诊断标准

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中国小儿急救医学 2006年第4期 397-397页

作者： Martinez CE guzman MC castillo JM 哥伦比亚波哥达ElBosque大学附属SantaClara医院肺与儿童危重症科

目的研究主要目标是评价北美-欧洲联合委员会(NAECC)关于儿科急性呼吸窘迫综合征(ARDS)定义的有效性;其次为评价用于诊断ARDS患儿的PaO2/FiO2值。设计回顾性队列研究地点儿童重症监护室研究对象1996年1月1日至2002年12月31日,儿童重症... 详细信息

目的研究主要目标是评价北美-欧洲联合委员会(NAECC)关于儿科急性呼吸窘迫综合征(ARDS)定义的有效性;其次为评价用于诊断ARDS患儿的PaO2/FiO2值。设计回顾性队列研究地点儿童重症监护室研究对象1996年1月1日至2002年12月31日,儿童重症监护病房需机械通气、死亡并行尸检的34例患儿。测量与主要结果采用标准数据收集工具,通过病例复习,回顾性获得临床和胸片信息。数据包括NAECC关于ARDS的特定标准和人口学信息。计算敏感性、特异性、阳性预测值、阴性预测值和临床与病理诊断ARDS似然比。PaO2/FiO2诊断值由绘制接收器工作特性曲线和比较曲线下面积确定。NAECC定义的敏感性为80·7%(95%可信区间60-92%),特异性71·4%(95%可信区间30-95%),阳性预测值91·3%(95%可信区间70-98%),阴性预测值50·0%(95%可信区间20-78%),似然比为2·82。诊断ARDS,PaO2/FiO2200有略高的特异性(但无显著差异,71%vs.86%,p=0·15),而敏感性相仿。结论本研究表明尽管NAECC定义似乎足以区分是否罹患ARDS,但确定诊断儿童ARDS的适宜PaO2/FiO2值,尚需大样本进一步研究。本研究数据提示,采用低于NAECC所推荐PaO2/FiO2值作为定义将更完善。然而,尚需前瞻性研究来证实我们的发现。

关键词：急性呼吸窘迫综合征循证研究儿科学

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Current systematic reviews and meta-analyses of COVID-19

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World Journal of Virology 2021年第4期10卷 182-208页

作者： Mahmoud Nassar Nso Nso Mostafa Alfishawy Anastasia Novikov Salim Yaghi Luis Medina Bahtiyar Toz Sofia Lakhdar Zarwa Idrees Yungmin Kim Dawa Ongyal Gurung Raheel S Siddiqui David Zheng Mariam Agladze Vikram Sumbly Jasmine Sandhu Francisco Cuevas castillo Nadya Chowdhury Ravali Kondaveeti Sakil Bhuiyan Laura guzman Perez Riki Ranat Carlos Gonzalez Harangad Bhangoo John Williams Alaa Eldin Osman Joyce Kong Jonathan Ariyaratnam Mahmoud Mohamed Ismail Omran Mariely Lopez Akwe Nyabera Ian Landry Saba Iqbal Anoosh Zafar Gondal Sameen Hassan Ahmed Daoud Bahaaeldin Baraka Theo Trandafirescu Vincent Rizzo Department of Internal Medicine Icahn School of Medicine at Mount Sinai/NYC H&H QueensNew YorkNY 11432United States Department of Infectious Diseases Infectious Diseases Consultants and Academic Researchers of Egypt(IDCARE)Cairo 11221Outside of the USEgypt Department of Medicine Division of NephrologyUniversity of Tennessee Health Science CenterKnoxville CityTN 38103United States Department of Medical St.George's UniversityWest Indies 38901Grenada Department of Internal Medicine Faculty of MedicineCairo UniversityCairo 11221Egypt Department of Oncology Broomfiled HospitalMid and South Essex NHS Foundation TrustESSEXChelmsford 12422United Kingdom Department of Critical Care Unit Icahn School of Medicine at Mount Sinai/NYC H&H QueensNew YorkNY 11432United States

BACKGROUND Coronavirus disease 2019(COVID-19)has left a significant impact on the world's health,economic and political systems;as of November 20,2020,more than 57 million people have been infected worldwide,with over 1.3 million *** the global spotlight is currently focused on combating this pandemic through means ranging from finding a treatment among existing therapeutic agents to inventing a vaccine that can aid in halting the further loss of *** To collect all systematic reviews and meta-analyses published related to COVID-19 to better identify available evidence,highlight gaps in knowledge,and elucidate further meta-analyses and umbrella reviews that are yet to be *** We explored studies based on systematic reviews and meta-analyses with the keyterms,including severe acute respiratory syndrome(SARS),SARS virus,coronavirus disease,COVID-19,and SARS *** included studies were extracted from Embase,Medline,and Cochrane *** publication timeframe of included studies ranged between January 01,2020,to October 30,*** that were published in languages other than English were not considered for this systematic *** finalized full-text articles are freely accessible in the public *** Searching Embase,Medline,and Cochrane databases resulted in 1906,669,and 19 results,respectively,that comprised 2594 studies.515 duplicates were subsequently removed,leaving 2079 *** inclusion criteria were systematic reviews or meta-analyses.860 results were excluded for being a review article,scope review,rapid review,panel review,or guideline that produced a total of 1219 *** screening articles were categorized,the included articles were put into main groups of clinical presentation,epi-demiology,screening and diagnosis,severity assessment,special populations,and ***,there was a second subclassification into the following groups:gastrointestinal,cardiovascular,neurological,stro

关键词： Systematic review Meta-analyses COVID-19 Review Coronavirinae

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