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HVSR analysis of pumice sands for sediment depth characterization:A case study for Guadalajara,Mexico

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Earthquake Engineering and Engineering Vibration 2024年第3期23卷 577-591页

作者： Hafid Salgado M. Alejandro Ramírez-Gaytan Adolfo preciado Christian R.Escudero Departamento de Ciencias Exactas Centro Universitario de la CostaUniversidad de GuadalajaraCP.48280 Puerto VallartaJaliscoMéxico Departamento de Ciencias Computacionales Centro Universitario de Ciencias Exactas e IngenieríaUniversidad de GuadalajaraCP.44430 GuadalajaraJaliscoMéxico Departamento del Hábitat y Desarrollo Urbano Instituto Tecnológico y de Estudios Superiores de Occidente(ITESO)CP.45604 TlaquepaqueMéxico

The horizontal to vertical spectral ratio(HVSR)methodology is used here to characterize pumice soils and to image the three-dimensional surface geometry of Guadalajara,*** to other Latin American cities,Guadalajara is exposed to high seismic risk,with the particularity of being the largest urban settlement in Latin America built on pumice *** has not yet been tested to characterize subsoil depths in pumice *** to the questionable use of traditional geotechnical tests for the analysis of pumice soils,HVSR provides an alternative for its characterization without altering its fragile and porous *** this work,resonance frequency(F0)and peak amplitude(A0)are used to constrain the depth of the major impedance contrast that represents the interface between bedrock and pumice *** were compared with borehole depths and other available geotechnical and geophysical data and show good *** of the profiles estimated on the riverbanks that cross the city,reveals different subsoil thickness that could have an impact on different site responses on riverine areas to an eventual *** and academic efforts are combined in this work to characterize depth sediments,an important parameter that impacts the regulations for construction in the city.

关键词： subsoil of Guadalajara shallow soil thickness bedrock depth pumice soil characterization

Vertical Displacement Measurement in a Slow-Moving Sinkhole Using BOTDA

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Photonic Sensors 2024年第1期14卷 23-39页

作者： Pascual SEVILLANO Javier preciado-GARBAYO Jorge SEVIL Francisco GUTIERREZ Juan JMARTiNEZ Sonia MARTiN-LOPEZ Miguel GONZALEZ-HERRAEZ Aragon Institute of Engineering Research(I3A) Universidad de ZaragozaZaragoza 50018Spain Electronic Enginering and Communicaton Dpartment EINAUniversidad de ZaragzaZaragza 50018Spain Aragon Photonics Labs. Zaragoza 50009Spain Department of Earth Sciences Universidad de ZaragozaZaragoza 50009Spain Department of Electronics Escuela Politecnica SuperiorUniversidad de AlcalaMadrid 28805Spain

The effectiveness of monitoring and early-warning systems for ground deformation phenomena,such as sinkholes,depends on their ability to accurately resolve the ongoing ground displacement and detect the subtle deformation preceding catastrophic *** sinkholes with a slow subsidence rate and diffuse edges pose a significant challenge for subsidence monitoring due to the low deformation rates and limited lateral strain *** this work,we satisfactorily illustrate the practicality of the Brillouin optical time domain analysis(BOTDA)to measure the spatial-temporal patterns of the vertical displacement in such challenging slow-moving sagging *** assess the performance of the approach,we compare the strain recorded by the distributed optical fiber sensor with the vertical displacement measured by high-precision *** results show a good spatial correlation with the ability to identify the maximum subsidence *** is also a good temporal correlation with the detection of an acceleration phase in the subsidence associated with a flood event.

关键词： Distributed fiber optic sensing(DFOS) vertical displacement measurement slow subsidence rate sinkhole hazard early-warning system

Chitosan Nanoparticles as Biostimulant in Lettuce (Lactuca sativa L.) Plants

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Phyton-International Journal of Experimental Botany 2024年第4期93卷 777-787页

作者： Silvia C.Ramírez-Rodríguez Pablo preciado-Rangel Marcelino Cabrera-De La Fuente Susana González-Morales Hortensia Ortega-Ortiz Tecnológico Nacional de México Instituto Tecnológico de TorreónEjido AnaTorreónCoahuila27170México Departamento de Horticultura Universidad Autónoma Agraria Antonio NarroSaltillo25315México Departamento de Materiales Avanzados Centro de Investigación en Química AplicadaSaltilloCoahuila25294México

Biodegradable nanoparticles such as chitosan nanoparticles (CSNPs) are used in sustainable agriculture since theyavoid damage to the environment;CSNPs have positive effects such as the accumulation of bioactive compoundsand increased productivity in plants. This study aimed to investigate the impact of applying CSNPs on lettuce,specifically focusing on enzymatic activity, bioactive compounds, and yield. The trial was conducted using a completelyrandomized design, incorporating CSNPs: 0, 0.05, 0.1, 0.2, 0.4, and 0.8 mg mL−1. The doses of 0.4 mg mL−1improve yields up to 24.6% increases and 0.1 mg mL−1 of CSNPs increases total phenols by 31.2% and antioxidantcapacity by 34.6%. In addition, when low concentrations of CSNPs (0.05 and 0.1 mg L−1) were applied, anincrease in catalase was determined. The CSNPs represent a good alternative to be used as a biostimulant in sustainableagriculture because they improve the yield and quality of lettuce by increasing the bioactive compounds.

关键词： Biostimulant bioactive compounds enzymatic activity

Viral hepatitis update: Progress and perspectives

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World Journal of Gastroenterology 2021年第26期27卷 4018-4044页

作者： María B Pisano Cecilia G Giadans diego M Flichman Viviana E Ré María V preciado Pamela Valva Virology Institute CONICETSchool of Medical SciencesNational University of CórdobaCordoba X5016Argentina Multidisciplinary Institute for Investigation in Pediatric Pathologies(IMIPP)CONICET-GCBA Laboratory of Molecular BiologyPathology DivisionRicardo Gutiérrez Children’s HospitalCABA C1425Buenos AiresArgentina Institute of Biomedical Investigations in Retrovirus and AIDS(INBIRS) School of MedicineUniversity of Buenos AiresCONICETCABA C1121ABGBuenos AiresArgentina

Viral hepatitis,secondary to infection with hepatitis A,B,C,D,and E viruses,are a major public health problem and an important cause of morbidity and *** the huge medical advances achieved in recent years,there are still points of conflict concerning the pathogenesis,immune response,development of new and more effective vaccines,therapies,and *** review focuses on the most important research topics that deal with issues that are currently being solved,those that remain to be solved,and future research *** hepatitis A virus we will address epidemiology,molecular surveillance,new susceptible populations as well as environmental and food *** the case of hepatitis B virus,we will discuss host factors related to disease,diagnosis,therapy,and vaccine *** hepatitis C virus,we will focus on pathogenesis,immune response,direct action antivirals treatment in the context of solid organ transplantation,issues related to hepatocellular carcinoma development,direct action antivirals resistance due to selection of resistanceassociated variants,and *** hepatitis D virus,we describe diagnostic methodology,pathogenesis,and ***,for hepatitis E virus,we will address epidemiology(including new emerging species),diagnosis,clinical aspects,treatment,the development of a vaccine,and environmental surveillance.

关键词： Viral hepatitis Hepatitis A virus Hepatitis B virus Hepatitis C virus Hepatitis D virus Hepatitis E virus

文献快报(1):早期氟暴露对学龄儿童心血管代谢健康存在影响

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中国学校卫生 2024年第2期45卷 182-182页

作者：沈玉婷(编译) 孙莹(编译) 安徽医科大学公共卫生学院儿少卫生与妇幼保健学系

氟化物是一种天然矿物质,广泛存在于食品、水和牙科产品中,儿童人群氟化物暴露较普遍。实验研究表明,氟化物诱导的脂质紊乱对心脏代谢健康具有潜在影响。美国西奈山伊坎医学院Damaskini Valvi教授领衔的团队,使用“肥胖、生长、环境和... 详细信息

氟化物是一种天然矿物质,广泛存在于食品、水和牙科产品中,儿童人群氟化物暴露较普遍。实验研究表明,氟化物诱导的脂质紊乱对心脏代谢健康具有潜在影响。美国西奈山伊坎医学院Damaskini Valvi教授领衔的团队,使用“肥胖、生长、环境和社会应激源计划研究”(Programming Research in Obesity,Growth,Environment and Social Stressors,PROGRESS)队列的数据,对500名墨西哥儿童进行了研究,测量儿童4,6和8岁时的膳食氟含量,首次探讨重复测量的氟化物含量与儿童心血管代谢结局之间的关联。

关键词：心血管代谢氟化物含量脂质紊乱 PROGRESS 西奈山重复测量氟暴露氟含量

The Tesistan, Mexico earthquake (M_w 4.9) of 11 May 2016: seismic-tectonic environment and resonance vulnerability on buildings

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Earthquake Engineering and Engineering Vibration 2019年第3期18卷 579-595页

作者： Alejandro Ramírez-Gaytán Adolfo preciado William L. Bandy Edilson F. Salazar-Monroy Miguel A. Jaimes Leonardo Alcantara Departamento de Ciencias Computacionales Centro Universitario de Ciencias Exactas e Ingeniería Universidad de Guadalajara Boulevard Marcelino García Barragán # 1421 44430 Guadalajara Jalisco México Departamento del Hábitat y Desarrollo Urbano Instituto Tecnológico y de Estudios Superiores de Occidente (ITESO). Periférico Sur Manuel Gómez Morin 8585 45604 Tlaquepaque Jalisco México Instituto de Geofísica Universidad Nacional Autónoma de México Circuito Interior Ciudad Universitaria Del. Coyoacán 04510 México Programa de Posgrado en Ciencias de la Tierra Universidad Nacional Autó noma de Mé xico Circuito Interior Ciudad Universitaria Del. Coyoacá n 04510 Mé xico Instituto de Ingenieria Universidad Nacional Autónoma de México Circuito Interior Ciudad Universitaria Del. Coyoacán 04510 México

To highlight the importance of small earthquakes in seismic hazard, a study of the 11 May 2016, Mw 4.9, Tesistan, Mexico earthquake is presented. Due to the close proximity of the event to the city, accelerations were considerably higher than those caused by historical severe earthquakes (6.0 < Mw < 8.2). This paper addresses two objectives related to the Tesistan event: the fi rst is to estimate the focal mechanism solution in order to place the event in the context of the tectonic environment of this area. The second is focused on a vulnerability evaluation of buildings that suff ered resonance. Several building′s typologies with variations in construction system and height are assessed in terms of resonance with the structural and soil periods. The results show that around the Zapopan station, strong damage is expected in intermediate to high-rise buildings (12-30 m) with moment resistant frame systems and in reinforced concrete shear walls. Masonry structures around this station may not present resonance. In contrast, in the surroundings of the Guadalajara station, all intermediate height buildings from 9 to 21 m may present resonance.

关键词： Tesistan earthquake seismicity of Guadalajara site eff ects structural vulnerability

Endoscopic identification of endoluminal esophageal landmarks for radial and longitudinal orientation and lesion location

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World Journal of Gastroenterology 2019年第4期25卷 498-508页

作者： Fabian Emura Rene Gomez-Esquivel Carlos Rodriguez-Reyes Petros Benias Javier preciado Michael Wallace Luis Giraldo-Cadavid Division of Gastroenterology Universidad de La Sabana Advanced Gastrointestinal Endoscopy EmuraCenter LatinoAmerica Emura Foundation for the Promotion of Cancer Research Unidad de Endoscopia Digestiva Clínica Pediátrica Colsanitas Division of Digestive Diseases and Nutrition Morsani College of Medicine University of South Florida Division of Gastroenterology North Shore-Long Island Jewish Medical Center Unidad de Exploraciones Digestivas Clinica Universitaria Colombia Department of Gastroenterology and Hepatology Mayo Clinic Department of Internal Medicine. Universidad de La Sabana Division of Interventional Pulmonology Fundacion Neumologica Colombiana

AIM To characterize esophageal endoluminal landmarks to permit radial and longitudinal esophageal orientation and accurate lesion *** Distance from the incisors and radial orientation were estimated for the main left bronchus and the left atrium landmarks in 207 consecutive patients using white light examination. A sub-study was also performed using white light followed by endoscopic ultrasound(EUS) in 25 consecutive patients to confirm the *** scope orientation throughout the exam was maintained at the natural axis,where the left esophageal quadrant corresponds to the area between 6 and 9 o'clock. When an anatomical landmark was identified, it was recorded with a photograph and its quadrant orientation and distance from the incisors were determined. The reference points to obtain the distances and radial orientation were as follows: the midpoint of the left main bronchus and the most intense pulsatile zone of the left atrium. With the video processor system set to moderate insufflation, measurements were obtained at the end of the patients' air *** The left main bronchus and left atrium esophageal landmarks were identified using white light in 99% and 100% of subjects at a mean distance of 25.8 cm(SD2.3), and 31.4 cm(SD 2.4) from the incisors, respectively. The left main bronchus landmark was found to be a tubular, concave, non-pulsatile, esophageal external compression, occupying approximately 1/4 of the circumference. The left atrium landmark was identified as a round, convex, pulsatile, esophageal external compression, occupying approximately 1/4 of the circumference. Both landmarks were identified using white light on the anterior esophageal quadrant. In the substudy, the left main bronchus was identified in 24(92%) patients at 25.4 cm(SD2.1) and 26.7 cm(SD 1.9) from the incisors, by white light and EUS, *** left atrium was recognized in all patients at 30.5 cm(SD 1.9), and 31.6 cm(SD2.3) from the incisors, by b

关键词： Esophagus Natural landmark Radial orientation Longitudinal orientation Four-quadrants Left main bronchus Left atrium

Monolithically printed all-organic flexible photosensor active matrix

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npj Flexible Electronics 2023年第1期7卷 504-512页

作者： Luis Arturo Ruiz-preciado Sanghoon Baek Noah Strobel Kai Xia Mervin Seiberlich Sung-min Park Uli Lemmer Sungjune Jung Gerardo Hernandez-Sosa Light Technology Institute Karlsruhe Institute of TechnologyEngesserstr.1376131 KarlsruheGermany InnovationLab Speyererstr.469115 HeidelbergGermany Department of Convergence IT Engineering Pohang University of Science and Technology77 Cheongam-RoPohang 37673Republic of Korea Institute of Microstructure Technology Karlsruhe Institute of TechnologyHermann-von-Helmholtz-Platz 176344 Eggenstein-LeopoldshafenGermany Department of Materials Science and Engineering Pohang University of Science and Technology77 Cheongam-RoPohang 37673Republic of Korea

Upcoming technologies in the fields of flexible electronics require the cost-efficient fabrication of complex circuitry in a streamlined *** printing techniques such as inkjet printing can enable such applications thanks to their inherent freedom of design permitting the mask-free deposition of multilayer optoelectronic devices without the need for subtracting *** we present an active matrix sensor array comprised of 100 inkjet-printed organic thin film transistors(OTFTs)and organic photodiodes(OPDs)monolithically integrated onto the same ultrathin *** the OTFTs and OPDs exhibited high-fabrication yield and state-of-the-art performance after the integration *** scaling of the OPDs,we achieved integrated pixels with power consumptions down to 50 nW at one of the highest sensitivities reported to date for an all-organic integrated ***,we demonstrated the application potential of the active matrix by static and dynamic spatial sensing of optical signals.

关键词： matrix printing multilayer

Social Skills and Behavioral Problems in Adolescents with Child Sexual Abuse, and Their Relation to Basal Cortisol

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Journal of Behavioral and Brain Science 2022年第5期12卷 252-270页

作者： Araceli Sanz-Martin Sofía preciado-Mercado Olga Inozemtseva Instituto de Neurociencias CUCBA Universidad de Guadalajara Guadalajara México

Child sexual abuse (CSA) is a stressful associated with alterations in the hypothalamic-hypophyseal-adrenal (HPA) axis and behavioral problems. Children and adolescents with history of CSA could have higher cortisol levels, as these have been associated with deleterious changes in brain regions involved in controlling social behavior and self-control. The aim of the present study was to determine the relationship among basal cortisol levels, social skills and behavioral problems in adolescents with CSA by evaluating two groups: one consisting of 12 - 15-year-old girls with CSA (n = 23), the other healthy comparison adolescents with no history of child abuse (n = 23). Social skills and behavioral problems were assessed using the Social Skills Improvement System. Three saliva samples were collected from each participant. The girls with CSA had lower social skills and more behavioral problems, as well as, higher cortisol concentrations. Besides, these participants showed significant negative correlations among cortisol levels and social skills, as well as, positive correlations with behavioral problems scales. It is feasible to suggest that the social deficiencies observed in these participants with CSA are related to alterations of the HPA.

关键词： Adolescents Behavioral Problems Child Sexual Abuse Cortisol Social Skills