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Variability in mentum deformities of Tanytarsus larvae(Diptera,Chironomidae)in a metal rich basin in Northern Mexico

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Water Biology and Security 2022年第2期1卷 1-9页

作者： Orestes Carlos Bello-Gonzalez Perla Alonso-EguíaLis cesar Arturo Ilizaliturri hernandez Norman Mercado-Silva Centro de Investigacion en Biodiversidad y Conservacion Universidad Autonoma del Estado de MorelosCuernavacaMorelosMexico Instituto Mexicano de Tecnología del Agua JiutepecMorelosMexico Facultad de Medicina-Centro de Investigacion Aplicada en Ambiente y Salud Universidad Autonoma de San Luis PotosíCoordinacion para la Aplicacion de la Ciencia y la Tecnología-(CIACyT-CIAAS)San Luis PotosíMexico

Mentum deformities in chironomids have been commonly used as indicators of metal contamination in freshwater ecosystems.Incidence of these deformities suggests sublethal effects and can provide early signals of environmental deterioration.While anthropogenic metal pollution is known to lead to an increase in deformities in chironomids,natural background deformity incidence information is key to their effective use as biomonitoring tools.Here we explore the incidence of deformities from 5000 Tanytarsus(Diptera,Chironomidae)menta in relation to water physicochemical,and sediment metal(Al,As,Cu,Fe,Mn,Pb,Zn)concentration data from numerous sites in the naturally metal-rich Sonora River(NW Mexico)obtained over a two-year period.Higher metal concentrations were found in the upper basin.Higher salinity,total suspended solids and conductivity were found in the lower basin.Only As and Cu were occasionally found above published threshold effect levels(TEL).The proportion of deformities(%D)was low(2.1%)and a generalized linear model only explained 25.36%of%D variability among samples;this model included several physicochemical parameters.The only metal significantly related to deformities was Cu.Despite significant spatial and temporal variability in all metal concentrations and other physicochemical parameters in the basin,we were unable to explain a strong relationship between metal concentration and deformity incidence.Our results,based on consistent%D quantification from 5000 samples from a single taxon,suggest that natural variation in metal concentrations,even when statistically significant,is not associated with notable variations in the incidence of deformities.

关键词： Macroinvertebrate Pollution Sonora river Desert river Copper Arsenic

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Submegahertz spectral width photon pair source based on fused silica microspheres

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Photonics Research 2021年第11期9卷 2237-2252页

作者： ERASTO ORTIZ-RICARDO cesar BERTONI-OCAMPO MONICA MALDONADO-TERRON arturo GARCIA ZURITA ROBERTO RAMIREZ-ALARCON HECTOR CRUZ RAMIREZ R.CASTRO-BELTRAN ALFRED B.U’REN Instituto de Ciencias Nucleares Universidad Nacional Autonoma de MexicoApartado Postal 70-54304510 MexicoD.F.Mexico Centro de Investigaciones en Optica A.C. Loma del Bosque 115Colonia Lomas del Campestre37150 LeonGuanajuatoMexico Departamento de Ingenieria Fisica Cuerpo Academico de Mecanica EstadisticaDivison de Ciencias e IngenieriasUniversidad de Guanajuato37150 LeonGuanajuatoMexico

High-efficiency submegahertz bandwidth photon pair generators will enable the field of quantum technology to transition from laboratory demonstrations to transformational applications involving information transfer from photons to atoms.While spontaneous parametric processes are able to achieve high-efficiency photon pair generation,the spectral bandwidth tends to be relatively large,as defined by phase-matching constraints.To solve this fundamental limitation,we use an ultrahigh quality factor(Q)fused silica microsphere resonant cavity to form a photon pair generator.We present the full theory for the spontaneous four-wave mixing(SFWM)process in these devices,fully taking into account all relevant source characteristics in our experiments.The exceptionally narrow(down to kilohertz-scale)linewidths of these devices result in a reduction in the bandwidth of the photon pair generation,allowing submegahertz spectral bandwidth to be achieved.Specifically,using a pump source centered around 1550 nm,photon pairs with the signal and idler modes at wavelengths close to 1540 and 1560 nm,respectively,are demonstrated.We herald a single idler-mode photon by detecting the corresponding signal photon,filtered via transmission through a wavelength division multiplexing channel of choice.We demonstrate the extraction of the spectral profile of a single peak in the single-photon frequency comb from a measurement of the signal–idler time of emission distribution.These improvements in device design and experimental methods enabled the narrowest spectral width(Δν=366 k Hz)to date in a heralded single-photon source based on SFWM.

关键词： fused silica spectral

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射孔新技术--高性能射孔模型

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石油工业计算机应用 2017年第3期25卷 16-25页

作者： carlos baumann alfredo fayard brenden grove jeremy harvey wenbo yang amit govil andy martin roberto franco mendez garcia arturo ramirez rodriquez jock munro cesar velez terrazas lang zhan 美国得克萨斯州Rosharon 挪威Tananger 英国剑桥墨西哥国家石油公司(pemex) 墨西哥韦拉克鲁斯Agua Dulce 苏格兰阿伯丁墨西哥塔巴斯科州Villahermosa 壳牌石油公司得克萨斯州休斯顿

爆炸聚能射孔是一种在油气井中射穿套管来形成井筒和套管外岩石之间通道的技术。服务公司通过地面试验，将聚能射孔弹射入无应力水泥靶中，以了解其在已知条件下的射孔性能在认识到模拟程序可能无法正确预测井下聚能射孔弹的性能后，斯... 详细信息

爆炸聚能射孔是一种在油气井中射穿套管来形成井筒和套管外岩石之间通道的技术。服务公司通过地面试验，将聚能射孔弹射入无应力水泥靶中，以了解其在已知条件下的射孔性能在认识到模拟程序可能无法正确预测井下聚能射孔弹的性能后，斯伦贝谢的科研人员开发出了可精确计算射孔深度、射孔效率和系统动态响应的软件，并以此来优化在高应力岩石中聚能射孔弹的性能。

关键词：聚能射孔弹孔性能技术孔模型地面试验服务公司模拟程序已知条件

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射孔新技术——高性能射孔模型

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国外测井技术 2017年第1期38卷 61-71页

作者： Carlos Baumann Alfredo Fayard Brenden Grove Jeremy Harvey Wenbo Yang Amit Govil Andy Martin Roberto Franco Mendez Garcia arturo Ramirez Rodriquez Jock Munro cesar Velez Terrazas Lang Zhan 斯伦贝谢公司

爆炸聚能射孔是一种在油气井中射穿套管来形成井筒和套管外岩石之间通道的技术。服务公司通过地面试验，将聚能射孔弹射入无应力水泥靶中，以了解其在已知条件下的射孔性能。在认识到模拟程序可能无法正确预测井下聚能射孔弹的性能后，... 详细信息

爆炸聚能射孔是一种在油气井中射穿套管来形成井筒和套管外岩石之间通道的技术。服务公司通过地面试验，将聚能射孔弹射入无应力水泥靶中，以了解其在已知条件下的射孔性能。在认识到模拟程序可能无法正确预测井下聚能射孔弹的性能后，斯伦贝谢的科研人员开发出了可精确计算射孔深度、射孔效率和系统动态响应的软件，并以此来优化在高应力岩石中聚能射孔弹的性能。

关键词：射孔弹射孔枪模型分析井下条件射孔效率射孔密度作业者套管射孔预测模型渗透率

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Dengue Climate Variability in Rio de Janeiro City with Cross-Wavelet Transform

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Journal of Environmental Protection 2022年第3期13卷 261-276页

作者： Suellen Araujo Franco dos Santos Hugo Abi Karam Augusto José Pereira Filho Jú lio cesar Barreto da Silva Jose Luis Flores Rojas Julio Migue Angeles Suazo Isela Leonor Vá squez Panduro cesar arturo Sanchez Peñ a Departamento de Meteorologia Instituto de Geoci&ecirc ncias Universidade Federal do Rio de Janeiro (UFRJ) Rio de Janeiro Brasil Departamento de Ciê ncias Atmosfé ricas Instituto de Astronomia Geofísica e Ci&ecirc ncias Atmosfé ricas Universidade de S&atilde o Paulo (IAG-USP) S&atilde o Paulo Brasil Programa de Pós-Graduaç ã o em Ciê ncias Ambientais Universidade Estadual do Rio de Janeiro (UERJ) Rio de Janeiro Brasil Instituto Geofísico do Peru (IGP) Lima Per&uacute Facultad de Ingeniería Forestal y Ambiental. Universidad Nacional Autó noma de Tayacaja Daniel Herná ndez Morillo (UNAT) Pampas Per&uacute Universidad Tecnoló gicadel Perú Faculdad de Engenier&iacute a Industrial Lima Per&uacute Centro de Previsã o do Tempo e Estudos Climá ticos Cachoeira Paulista Brasil Programa de Pó s-Graduaç ã o em Computaç ã o Aplicada Instituto Nacional de Pesquisas Espaciais (INPE) S&atilde o José dos Campos S&atilde o Paulo SP Brasil

Dengue is one of the most prominent tropical epidemic diseases present in the Rio de Janeiro city and Southeast part of Brazil, due to the widespread conditions of occurrence of the dengue vector, the mosquito Aedesaegypti, such as high-temperature days interlaced with afternoon or nocturnal rainstorms in summer. This work has the objective of investigating the relationships between variabilities of the El Ni?o-South Oscillation (ENSO) and greater epidemics of dengue in Rio de Janeiro city. To accomplish this goal, the analysis and signal decomposition by cross-wavelet transform (WT) was applied to obtain the cross variability associated with variations of power and phase of both signals by characteristic periods and along with the time series. Data considered in the analysis are (the decimal logarithm of normalized value) of the monthly available notifications of dengue worsening, provided by the public health system of Brazil, and the Southern Oscillation Index (SOI) Ni?o 3.4 data, provided by the National Oceanic and Atmospheric Administration (NOAA), in the period 2000-2017. A maximum cross-wavelet power close to 0.45 was obtained for the representative period of 1 year and also to periods between 3 and 4 years, associated with the positive phase of the SOI index (i.e. , La Ni?a) or with a transition to the positive phase. The evolution of the combined variability of SOI and dengue can be expressed by progressive differences in phase along the time, eventually resulting in yielding phases (i.e., La Niña-Dengue epidemic).

关键词： Dengue Fever Cross-Wavelet Transform Analysis El Niño-Southern Oscillation Index

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Management of Complex Wounds with Dermal Substitute Assisted by a Negative Pressure System

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Modern Plastic Surgery 2023年第4期13卷 95-105页

作者： Cuahutémoc Márquez Espriella Ruiz Garza Jorge Gerardo Barbosa Villarreal Fernando Dávila Díaz Rodrigo Cuervo Vergara Marco Antonio Campollo López Ana Priscila Gutierrez Alvarez Mauricio Chama Naranjo Alfredo García Corral Jesús Ricardo Pérez Benítez Omar Alberto Pulido López Ricardo Alberto Jaimes Duran Edwing Michel Garibaldi Bernot Mauro Cortes Aguilar Carlos Manuel García Córdova Carlos Emiliano Camacho Rodriguez Hayah Camacho Rodriguez Hayah Martinez Villalobos Claudia Nallely Ochoa Contreras Erick cesar Randall Cruz Soto Herrera Lozano Luis arturo Department of Plastic and Reconstructive Surgery Hospital Central Sur Petróleos Mexicanos Mexico City Mexico

Introduction: The standard treatment for complex wound care is autografting. The advent of dermal substitutes has provided a novel tool for the preparation of the bed to be grafted. However, most types of dermal matrices require the application of a skin graft a second time. Currently, other strategies have been developed to improve the vascularization process, such as negative pressure wound therapy (NPWT), which has been reported to reduce the time required for vascular growth and dermal matrix integration and thus achieve a shorter waiting period for autologous graft application. The present study aims to evaluate the effectiveness and safety of dermal matrix management associated with NPWT in the treatment of complex wounds. Methods: Seven patients with a diagnosis of complex wounds were enrolled in this study between July 1, 2015, and June 31, 2016. After debridement and having an adequate wound bed, patients who met the criteria for the application of combined therapy were treated with dermal substitutes and a negative pressure system. The percentage of graft integration into the wound bed, complications, length of hospital stay, and duration of therapy were analyzed. Results: The mean age was 42.5 ± 16 (39 - 54) years old;three women and four men were included in the study. The approximate size of skin loss was 120.7 ± 75 cm2 (25 - 250 cm2). The combined therapy of dermal matrix plus NPWT was instituted in all cases for a period of 14 days. There were no complications, with 100% graft integration in 6 of 7 cases. Patients were discharged after a mean hospital stay of 5.4 days. Conclusions: This study demonstrates that the utilization of combined dermal matrix plus NPWT therapy can be performed safely and effectively in patients with complex wounds with low complication rates and a short hospital stay.

关键词： Negative Pressure Wound Therapy Complex Wound Dermal Matrix Wound Therapy

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Managament Wound Healing: The Importance of a Wound Clinic in Hospital Centers

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现代整形外科(英文) 2023年第4期13卷 118-125页

作者： Alfredo Chama Naranjo Cuahutémoc Márquez Espriella Alberto Ignacio Cahuana Quispe Barbosa Villarreal Fernando Ana Priscila Campollo López Mauricio Gutiérrez Álvarez Carlos Emiliano García Córdova Jesús Ricardo García Corral Cuervo Vergara Marco Antonio Jorge Luis Rosales Becerra Dávila Díaz Rodrigo Edgar Alan Guillen Martínez Marín Canto Miguel Eduardo Luis arturo Herrera Lozano Ochoa Contreras Erick cesar Martinez Villalobos Claudia Nallely Cruz Soto Randall Camacho Rodriguez Hayah Ricardo Alberto Pulido López Edwing Michel Jaimes Durán Department of Plastic and Restrictive Surgery Hospital Central Sur de Alta Especialidad Pemex Mexico City Mexico

Background: In clinical practice, acute and chronic wounds continue to be a challenge. Unfortunately, wound care is often inadequate or inappropriate. The implementation of wound clinics involving an interdisciplinary team for wound care and treatment yields favorable clinical outcomes as well as a reduction in economic expenses due to a higher rate of healing, a decrease in hospital stays, and a reduction in the number of readmissions. The establishment of wound clinics enhances the utilization of diagnostic, preventive, and therapeutic resources, improving the quality of life of patients and facilitating their reintegration into their normal lives. The objective is solely to describe the importance of wound clinics in the medical profession. Methods: A retrospective literature search was conducted to include articles no more than 10 years old that reported measures or results of the study in order to perform a literature review and describe the importance of wound clinics in medical practice. Results: A total of 7 articles were obtained with the inclusion criteria, the most recent being from the year 2023 and the oldest from 2013. Conclusion: An important area for improvement in the healthcare industry is the management and treatment of complex wounds. The establishment of wound clinics offers comprehensive and specialized care for both acute and chronic complex wounds with the goal of enhancing secondary illness patients’ prevention, treatment, and rehabilitation.

关键词： Wound Clinic Pressure Ulcer Chronic Wound Wound Healing Quality of Life

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