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Water Stress in Temperate Dry Climate of the Baja California North and Use Rainwater

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Journal of Civil Engineering and Architecture 2019年第5期13卷 293-304页

作者： francisco Fernández Melchor Marcos Eduardo gonzalez Trevizo Julio Cesar Rincón Martínez Facultad de Ingeniería Arquitectura y Diseno (Faculty of Engineering Architecture and Desing) Universidad Autónoma de Baja California (Baja California Autonomous University) Ensenada BC 22860 Mexico

The growth of urban centers in Mexico and the consequent demand for services and overexploitation of their watersheds and aquifers, these being insufficient to cover the demand for drinking water in different cities, and areas with dry climates and poor rainfall are mostly affected. The case study where this research is concentrated is located in the city of Ensenada, where the demand for greater capacity in general basic services such as drinking water supply has created a greater problem when the availability of this resource is very limited by the climatic conditions and the natural environment in arid zones as it is in the North of Baja California. In this research we propose the design and installation of a rainwater collection system, with economic materials and common use that any inhabitant can acquire for their implementation in their own home. In this sense, dissemination has been promoted about the advantages of using natural resources based on collective awareness, emphasizing the scientific dissemination of knowledge. For this last point the moderation of the use of rainwater is made to cover the domestic demand for water through a rain collection system installed in a house of average family.

关键词： Ecotechnologies rainwater harvesting average precipitation.

Detection of <i>Helicobacter pylori</i>in dental plaque of mexican children by real-time PCR

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Health 2014年第4期6卷 231-235页

作者： J. A. Valdez-gonzalez P. C. Mares-Moreno M. J. Kowolik J. Vargas-Villlarreal F. gonzalez-Salazar M. A. De la Garza-Ramos Centro de Investigación y Desarrollo en Ciencias de la Salud Universidad Autónoma de Nuevo León Gonzalitos Norte y Carlos Canseco Mitras Centro Monterrey Mexico Centro de Investigaciones Biomedicas del Noreste IMSS Monterrey México Centro Medico Nacional Del Noreste Hospital de Especialidades #25 IMSS Monterrey Mexico Department of Epidemiology and Biostatistics University of California San Francisco San Francisco USA Department of Periodontics and Allied Dental Programs Indiana University School of Dentistry Indianapolis USA

Dental plaque in adult patients is well identified as a reservoir for Helicobacter pylori. This question still remains unclear in children. The aim of this study is to identify the presence of this bacterium in dental plaque of Mexican pediatric patients, using Real Time Polymerase Chain Reaction (qPCR). Forty patients from 2 to 11 years without dyspeptic symptoms were enrolled. Samples were collected from the subgingival space of the lingual side of the lower molars and cultured in selective medium. Therefore, qPCR analysis was conducted. According to the results obtained in this study, it was found that 35% of the pediatric population who participated tested qPCR positive for the presence of H. pylori in dental plaque samples. No significant associations were detected among isolation rate by gender or age. We found that dental plaque may be a reservoir for H. pylori. However, more research is needed to establish the way of the infection of pediatric population.

关键词： Helicobacter pylori Oral Pathology Children Real Time Polymerase Chain Reaction Anaerobic Bacteria

Non-Linear Analysis of Energy Absorption Systems under Impact Loads through FEM

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Journal of Mechanics Engineering and Automation 2012年第8期2卷 487-494页

作者： Elias Rigoberto Ledesma-Orozco Jose Angel Diosdado-De la Pena Gerardo Israel Pdrez-Soto Alonso Salazar-garibay Juan francisco Reveles-Arredondo Gilberto Villalobos-Llamas Pedro Duran-Resendiz Department of Mechanical Engineering Universidad de Guanajuato (DICIS) Salamanca M~xico

This paper presents a non-linear simulation of the impact on a structure with different energy absorption systems using finite element models. Literature review on bistable structure, aluminum foam and expandable polystyrene is presented and taken as basis to propose energy absorption systems. Using a base structure, these systems are implemented by means of finite element modeling. A comparison of the damage caused to the structure in case of impact without implementing energy absorption system, and implementing energy absorption systems based on bistable structures, polystyrene foam and aluminum foam are shown here in. The results demonstrate the advantages of using energy absorption systems on structures under impact loads.

关键词：吸收系统有限元模型冲击载荷非线性分析能量可发性聚苯乙烯聚苯乙烯泡沫非线性模拟

Long-Term Follow-Up of 82 Cavernous Sinus Meningiomas Treated with Radiosurgery

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Journal of Cancer Therapy 2014年第11期5卷 1005-1011页

作者： Mari Pascual Gallego Jose Samblas Jose Carlos Bustos Jose Angel Gutierrez Diaz Marisa gonzalez Kita Sallabanda[1 1Departament of Neurosurgery Hospital Clínico San Carlos Universidad Complutense de Madrid Madrid Espana Departament of Neurosurgery Hospital Clínico San Carlos Universidad Complutense de Madrid Madrid Espana Neuro-Oncology Unit Hospital San Francisco de Asís—Grupo IMO Madrid Espana

The cases of 82 patients with cavernous sinus meningioma (CSM) treated with Stereotactic Radiosurgery (SRS) at our institution from 1992 to 2005 were retrospectively reviewed. The mean follow-up time was 8.38 years. Patients’?age ranged between 16 and 78 years (mean 51). There were 35 patients who had been operated before, and two of them had been treated with fractionated radiotherapy. Twenty-three from 35 patients were surgically intervened?(65.7%)?and?presented post-surgical morbidity. Only in 3 cases the surgery was considered complete. The patients were referred for SRS treatment due to having tumour remains or a tumour growth. The mean volume of the tumour was 17.96 (+/?13.67) cm3.?All the patients had been treated with a Linear Accelerator (LINAC) using a high precision positioning and radiation system (SRS 2000) University of Florida. The clinical progress of the patients was assessed using preand post-SRS radiological imaging, post-surgical and pre-post-SRS morbidity and mortality. Tumour volume decreased significantly with RS in 61 of 82 patients (74.4%). The tumour volume remained stable 12 patients (14.6%) and only in 9 patients (11%) was there tumour growth after SRS. Of these, 5 required surgical intervention, and 7 of the 82 underwent SRS or another fractionated stereotactic radiotherapy after the RS. Morbidity due to the SRS was only seen in 14 out of the 82 patients treated with SRS, five of them recovered completely. SRS is a high precise and effective treatment with low morbidity, becoming more and more the option of choices?in the treatment of cavernous sinus meningioma.

关键词： Cavernous Sinus Meningioma Radiosurgery LINAC

Characterization of oral yeasts isolated from healthy individuals attended in different Colombian dental clinics

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The Journal of Biomedical Research 2019年第5期33卷 333-342页

作者： Raul Eduardo Rivera Alejandra Zuluaga Karen Arango Itzjak Kadar Paola Andrea Pinillos Luis Fernando Montes Eugenia Catalina Cepeda Ernesto gonzalez Pedro Antonio Alfonso Andrea Alejandra Villalba Luis Fernando Casanova Adolfo Perez Armando Roa Martha Jhoana Arias Jorge Orlando francisco Cuellar Lorena Pedraza Adiel Alberto Vasquez Blanca Lynne Suarez Beatriz LGomez Catalina De Bedout Luz Elena Cano Group of Investigation in Oral Health Faculty of DentistryAntonio Narino UniversityArmeniaQuindio 630001Colombia Medical and Experimental MycologyUnit Corporation for Biological Research(CIB)MedellinAntioquia 050034Colombia School of Medicine and Health Sciences Universidad del RosarioCarreraBogota 111221Colombia School of Microbiology University of AntioquiaMedellinAntioquia 050036Colombia.

The aim of this study was to identify the most frequent yeasts in the oral cavity of adult individuals without immune disorders and to associate the presence of these oral yeasts with different characteristics of each individual. Oral rinse samples were obtained from 96 healthy adults and cultured in Sabouraud dextrose agar media and CHROMagar. Yeasts were identified by sequencing the D1/D2 region of the 28 S rRNA gene. Probable association among the socio-demographic characteristics, body mass index, family and personal medical history,oral hygiene, tobacco and/or alcohol consumption habits and presence of oral fungi was analyzed. Contingency tables and logistic regression were employed to evaluate possible relationships between the presence of oral fungi and mixed colonization with these variables. 57.3% of the healthy individuals had oral yeasts and 21.8% had mixed colonization. The most prevalent yeasts were Candida albicans(52%), C. parapsilosis(17.9%), and ***(7.57%). Yeasts with most frequently mixed colonization were C. albicans and C. parapsilosis. No relationships were found among the variables analyzed. However, the presence of mixed colonization was related to the presence of dental prostheses(P<0.006), dental apparatuses(P=0.016) and O’Leary index(P=0.012). This is the first study that characterized oral yeasts in Colombian healthy individuals, determined the most prevalent oral yeasts C. albicans, C. parapsilosis and C. dublinensis and an association of mixed colonization with the use of dental prostheses and aparatology and poor hygiene.

关键词： oral yeast Candida species microbial epidemiology

1.3 μm emitting SrF2：Nd^3＋ nanoparticles for high contrast in vivo imaging in the second biological window

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Nano Research 2015年第2期8卷 649-665页

作者： Irene Villa Anna Vedda Irene Xochilt Cantarelli Marco Pedroni Fabio Piccinelli Marco Bettinelli Adolfo Speghini Marta Quintanilla Fiorenzo Vetrone Ueslen Rocha Carlos Jacinto Elisa Carrasco francisco Sanz Rodrfguez Angeles Juarranz Blanca del Rosal Dirk H. Ortgies Patricia Haro gonzalez Jose Garcia Sole Daniel Jaque Garcia Department of Materials Science University of Milano-Bicocca Via R. Cozzi 55 20125 Milano Italy Dipartimento di Biotecnologie Universita di Verona and INSTM UdR Verona Strada le Grazie 15 37134 Verona Italy Institut National de la Recherche Scientifique-Energie Materiaux et Telecommunications Universitd du Quebec Varennes QC PQ J3X 1S2 Canada Grupo de Fotonica e Fluidos Complexos Instituto de Fisica Universidade Federal de Alagoas 57072-970 Maceio Alagoas Brazil Departamento de Biologia Facultad de Ciencias Campus de Cantoblanco Universidad Autdnoma de Madrid Madrid 28049 Spain Fluorescence Imaging Group Departamento de Fisica de Maferiales Facultad de Ciencias Campus de Cantoblanco Universidad Aut6noma de Madrid Madrid 28049 Spain

为高度的新奇途径形成对照，深织物，在 vivo 荧光，生物医学的成像基于在所谓的秒工作的红外线射出的 nanoparticles 生物窗户(1,0001,400 nm ) 。这允许高分辨率的获得，深织物在这详细规格由于纸巾的部分透明性想象光谱范围。另外，... 详细信息

为高度的新奇途径形成对照，深织物，在 vivo 荧光，生物医学的成像基于在所谓的秒工作的红外线射出的 nanoparticles 生物窗户(1,0001,400 nm ) 。这允许高分辨率的获得，深织物在这详细规格由于纸巾的部分透明性想象光谱范围。另外，有低精力的光刺激(红外线) 光子也在对的 autofluorescence 的贡献导致激烈的减小在里面 vivo 图象。不过这里被表明当标本食谱显示出延长直到 1,100 nm 的显著红外线的荧光，完全在这扇生物窗户中工作不保证 autofluorescence 的完全的移动。在这个工作，我们显示出怎么 Nd 的 1,340 nm 排放乐队 3+ 个离子在 SrF 嵌入 2 nanoparticles 能被用来生产 autofluorescence 在 vivo 荧光图象的免费、高对比。食物相关的红外线的 autofluorescence 的完全的移动为可靠 biodistribution 研究的发展是必要的，这也被表明。

关键词：生物医学成像纳米颗粒红外发射高对比度体内窗口自发荧光钕

Silicon Macropores Formed in Acid and Alkaline Dolutions at Different Etching Rates

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Silicon Macropores Formed in Acid and Alkaline Dolutions at ...

Simulation, Power Quality Analysis and Improvements in a Hot Rolling Mill Using a STATCOM

第十五届国际光伏科学与工程大会

作者： B.gonzalez-D az N.Marrero D.Borchert C.Hernandez-Rodr guez R.Guerrero-Lemus Departamento de F sica Basica.Universidad de La Laguna.Astrof sico francisco Sanchez.38204 La Laguna.S/C de Tenerife.Spain. Auf der Reihe 2 Institut fur Solare Energiesysteme Fraunhofer Institut.45884 Gelsenkirchen.Germany.

In this work, we present a study of etching rates, reflectance and photocarrier lifetime measurements for silicon surfaces etched in acid and alkaline solutions and passivated by nitridation of the etched surfaces in a plasma enhanced chemical vapour deposition system. The layers can be applied as antireflection coatings in silicon based solar cells. A temperature control of the acid solution (HNO/HF/HO) and variations of the chemical compounds concentrations in the alkaline solution (NaHCO/NaCO/HO) are used to modify the etching rates. It is found that the formation of anisotropic or isotropic macropores on the silicon surface can be obtained by both kind of etching solutions and it is only dependent on the etching rate and etching time. In the case of the acid etching, the results reveal that for temperatures under 10℃and short etching times, the low etching rates produces pore walls preferentially oriented in the direction.

关键词： Stain Etching Texturization Solar Cells

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Journal of Energy and Power Engineering 2014年第9期8卷 1633-1641页

作者： Pablo Ardura Gonzalo Alonso Jose Manuel Cano Joaquin gonzalez Nomiella francisco Pedrayes Femando Briz Manes Fernandez Cabanas Manuel Garcia Melero Carlos Hiram Rojas Jose Ramon Gonzadez Suaxez Electrical Engineering Department University ofOviedo Gijon 33204 Spain Global Research & Development Department Arcelor Mittal Aviles 33400 Spain

This paper presents an analysis of the electric power flows in a hot rolling mill plant using a power quality analyzer and developing simulation models with Matlab-Simulink. The model inputs have been taken from process data by the process computer of the plant. Data from different rolling campaigns have been analysed. A STATCOM (static synchronous compensator) with a control strategy based on voltage oriented control with d-q coordinates is used as solution to improve the reactive compensation as well as to minimize the voltage fluctuations and sags effect. The overall electric model has been simulated with the STATCOM to check the improvement in the voltage stability and the consumption.

关键词： STATCOM 电能质量分析仪仿真模型热轧机 Simulink 静态同步补偿器 Matlab 电压波动

Blueberry Extract Reduces Oxidative Stress in Patients with Metabolic Syndrome

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Journal of Life Sciences 2016年第3期10卷 145-152页

作者： Raul francisco Pastor gonzalez E Cassini M. S. Pastor I Saure M Saavedra E. Siman Menem M. I. Drago S Iermoli R. H InternalMedicineIVChair HospitaldeClinicas"JosddeSanMartin"UniversityofBuenosAiresBuenosAiresArgentina CentrodeDiagn6sticoMolecularS.A.(MolecularDiagnosisCenter) BuenosAiresArgentina CESAN(CentrodeEndocrinologia SaludAlimentaci6nyNutricidn)CenterforEndocrinologyHealthEatingandNutritionBuenosAiresArgentina