Article
Stenotrophomonas maltophilia in Mexico: Antimicrobial resistance, Biofilm formation and clonal diversity
Fecha
2014Registro en:
10.1099/jmm.0.074385-0
Autor
De Guevara, H.P.L.
Rodriguez, A.G.
Navarro-Contreras, H.
Vidal, M.A.
Institución
Resumen
Ge1-xSnx alloys were grown on GaAs (001) substrates in a conventional R. F. magnetron sputtering system with two independent plasmas not simultaneous focus to substrate. We determined the in-plane and in-growth lattice parameters for different Sn concentrations by high resolution X-ray diffraction (HRXRD). We observed that Ge1-xSnx layers with low Sn concentrations have pseudomorphic characteristics. But this layers relax at Sn concentrations higher than the ones growth on Ge (001) substrates. Raman spectroscopy confirms the Sn concentrations of the Ge1-xSnx layers. We also determined the band gap transitions and we found that the indirect-direct band gap crossover occurs as is predicted in Ge1-xSnx alloys growth on Ge (001). " The Electrochemical Society.",,,,,,"10.1149/06406.0393ecst",,,"http://hdl.handle.net/20.500.12104/44783","http://www.scopus.com/inward/record.url?eid=2-s2.0-84921308002&partnerID=40&md5=7c062aebbee478941337366cc2c24734",,,,,,"6",,"ECS Transactions",,"393 400",,"64",,"Scopus",,,,,,,,,,,,"Structural and optical properties of Ge1-xSnx alloys grown on GaAs (001) by R. F. magnetron sputtering",,"Conference Paper"
"46530","123456789/35008",,"Turrado, S.J., Departamento de Madera, Celulosa y Papel, Universidad de Guadalajara, Aparta P. 52-93 Km. 15.5 Autopista, Zapopan Jal 45020, Mexico; Gonzalez, T.O.G., Departamento de Madera, Celulosa y Papel, Universidad de Guadalajara, Aparta P. 52-93 Km. 15.5 Autopista, Zapopan Jal 45020, Mexico; Vazquez, C.L.M., Departamento de Madera, Celulosa y Papel, Universidad de Guadalajara, Aparta P. 52-93 Km. 15.5 Autopista, Zapopan Jal 45020, Mexico; Saucedo, C.A.R., Departamento de Madera, Celulosa y Papel, Universidad de Guadalajara, Aparta P. 52-93 Km. 15.5 Autopista, Zapopan Jal 45020, Mexico; Rivera Prado, J.J., Departamento de Madera, Celulosa y Papel, Universidad de Guadalajara, Aparta P. 52-93 Km. 15.5 Autopista, Zapopan Jal 45020, Mexico; Sanjuan, D.R., Departamento de Madera, Celulosa y Papel, Universidad de Guadalajara, Aparta P. 52-93 Km. 15.5 Autopista, Zapopan Jal 45020, Mexico",,"Turrado, S.J. Gonzalez, T.O.G. Vazquez, C.L.M. Saucedo, C.A.R. Rivera Prado, J.J. Sanjuan, D.R.",,"1999",,"The paper industry in order to reach all paper quality requirements is using as by products more and higher quantity chemicals products in the furnish. The behaviour of all these materials specially those with adhesive properties are the source of trouble during the new paper production. This work is related to quantifying micro and dispersed stickies generated by two paper samples specially the behaviour of adhesives in relation to an hydrophobic Polyethylene surface "Low Density Polyethylene, LDPE film" placed in an stirred pulp sample (2%C) at 50°C, etc. in this relation the surface tension of both compounds is important. It was used a 2k Mathematical Model in order to optimize the action of each parameter. The analysis of particles adhered to the LDPE film was made using an image Analyser, this work was developed in order to look for a quick and reliable method to help the Paper Industry. The mean area of stickies of both paper samples (31724 and 8722 ?m2/m2) was detected and related to the weight to waste paper O.D. (16.9 10-3 mm2 stickies/kg waste paper O.D. 4.29 10-3.",,,,,,,,,"http://hdl.handle.net/20.500.12104/44751","http://www.scopus.com/inward/record.url?eid=2-s2.0-0033304924&partnerID=40&md5=f989c1521848854f1b8f6a7567517094",,,,,,"SPEC ISS.",,"IPPTA: Quarterly Journal of Indian Pulp and Paper Technical Association",,"1 5",,"11",,"Scopus",,,,,,"Adhesives; Image analysis; Stickies; Waste paper",,,,,,"Stickies related research during the recycling of waste paper",,"Article"
"46538","123456789/35008",,"Rodríguez, Y., Facultad de Medicina Veterinaria UDG, Mexico; Fonseca, Y., Facultad de Medicina Veterinaria UDG, Mexico; Figueroa, O., Vicerrectoria Docente UDG, Mexico; Ramírez, W., Centro de Estudio de Las Ciencias, Educación Superior UDG, Mexico; Valerino, P., Facultad de Medicina Veterinaria UDG, Mexico; Antunez, G., Centro de Estudio de Las Ciencias, Educación Superior UDG, Mexico; Sánchez, Y.M., Facultad de Medicina Veterinaria UDG, Mexico",,"Rodriguez, Y. Fonseca, Y. Figueroa, O. Ramirez, W. Valerino, P. Antunez, G. Sanchez, Y.M.",,"2012",,"In this paper we stratified the territory of the Granma province in terms of establishing an order of priority in the regions that need it in the fight against Orf. Which were used for the statistical basis of the Provincial Institute of Veterinary Medicine (Vigilance Department), taking the number of reported outbreaks in 2000-2009, this indicator is a discrete variable. Developed a procedure consisting of seven steps, based on the Poisson probability distribution. In the first four checks if the series takes place at random or not, in the remaining areas are classified into: low frequency, medium and high, determining their limits through the values of quartiles and minimum and maximum numbers. The series evaluated not randomly distributed. It ranked 11, 9 and 4 areas respectively, according to the name question, a thematic map was prepared for presentation and display. The procedure developed allows stratify and identify geographic areas based on the relative homogeneity of the average frequency of new outbreaks, which allows improving epidemiological vigilance and control of contagious ecthyma, although it is possible to study its extension to other pathologies.",,,,,,,,,"http://hdl.handle.net/20.500.12104/44759","http://www.scopus.com/inward/record.url?eid=2-s2.0-84871973913&partnerID=40&md5=1dd80edc848d9d4feee81c0d27853909",,,,,,"11",,"Revista Electronica de Veterinaria",,,,"13",,"Scopus",,,,,,"Contagious; Ecthyma; Goats; Poisson; Sheep; Statistics",,,,,,"Stratification spatial distribution of outbreaks of contagious ecthyma in Granma province. Part I [Estratificación espacial de la distribución de focos de Ectima contagioso en la provincia Granma. Parte I]",,"Article"
"46522","123456789/35008",,"Flores-Treviño, S., Servicio de Gastroenterología, Hospital Universitario Dr JoséEleuterio González, Universidad Autónoma de Nuevo León, Av. Francisco I. Madero Pte. S/N y Av. Gonzalitos, Col. Mitras CentroMonterrey, Nuevo León, Mexico; Gutiérrez-Ferman, J.L., Laboratorio de Química Analítica, Universidad Autónoma de Nuevo León, México, Pedro de Alba SN, Col. Ciudad UniversitariaSan Nicolás de los Garza, Nuevo León, Mexico; Morfín-Otero, R., Hospital Civil de Guadalajara, Fray Antonio Alcalde y el Instituto de Patología Infecciosa y Experimental, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada 950, Col. IndependenciaGuadalajara, Jalisco, Mexico; Rodríguez-Noriega, E., Hospital Civil de Guadalajara, Fray Antonio Alcalde y el Instituto de Patología Infecciosa y Experimental, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada 950, Col. IndependenciaGuadalajara, Jalisco, Mexico; Estrada-Rivadeneyra, D., Hospital Civil de Guadalajara, Fray Antonio Alcalde y el Instituto de Patología Infecciosa y Experimental, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada 950, Col. IndependenciaGuadalajara, Jalisco, Mexico; Rivas-Morales, C., Laboratorio de Química Analítica, Universidad Autónoma de Nuevo León, México, Pedro de Alba SN, Col. Ciudad UniversitariaSan Nicolás de los Garza, Nuevo León, Mexico; Llaca-Díaz, J.M., Departamento de Patología Clínica, Hospital Universitario Dr JoséEleuterio González, Universidad Autónoma de Nuevo León, Av. Francisco I. Madero Pte. S/N y JoséE. González, Col. Mitras CentroMonterrey, Nuevo León, Mexico; Camacho-Ortíz, A., Servicio de Infectología, Hospital Universitario Dr JoséEleuterio González, Universidad Autónoma de Nuevo León, Av. Francisco I. Madero Pte. S/N y JoséE. González, Col. Mitras CentroMonterrey, Nuevo León, Mexico; Mendoza-Olazarán, S., Servicio de Gastroenterología, Hospital Universitario Dr JoséEleuterio González, Universidad Autónoma de Nuevo León, Av. Francisco I. Madero Pte. S/N y Av. Gonzalitos, Col. Mitras CentroMonterrey, Nuevo León, Mexico; Garza-González, E., Servicio de Gastroenterología, Hospital Universitario Dr JoséEleuterio González, Universidad Autónoma de Nuevo León, Av. Francisco I. Madero Pte. S/N y Av. Gonzalitos, Col. Mitras CentroMonterrey, Nuevo León, Mexico, Departamento de Patología Clínica, Hospital Universitario Dr JoséEleuterio González, Universidad Autónoma de Nuevo León, Av. Francisco I. Madero Pte. S/N y JoséE. González, Col. Mitras CentroMonterrey, Nuevo León, Mexico",,"Flores-Trevino, S. Gutierrez-Ferman, J.L. Morfin-Otero, R. Rodriguez-Noriega, E. Estrada-Rivadeneyra, D. Rivas-Morales, C. Llaca-Diaz, J.M. Camacho-Ortiz, A. Mendoza-Olazaran, S. Garza-Gonzalez, E.",,"2014",,"Stenotrophomonas maltophilia is an important multidrug-resistant nosocomial pathogen associated with high mortality. Our aim was to examine antimicrobial susceptibility, biofilm production and clonal relatedness of clinical isolates of S. maltophilia. S. maltophilia isolates were collected between 2006 and 2013 from two tertiary care hospitals in Mexico. Antimicrobial susceptibility was evaluated by the broth microdilution method. PCR was used to determine the presence of ?-lactamase genes L1 and L2. Biofilm formation was assessed with crystal violet staining. Clonal relatedness was determined by PFGE. Among the 119 collected S. maltophilia isolates, 73 (61.3%) were from the respiratory tract. Resistance levels exceeded 75% for imipenem, meropenem, ampicillin, aztreonam, gentamicin and tobramycin. Resistance to trimethoprim-sulfamethoxazole was 32.8%. L1 and L2 genes were detected in 77.1% (91/118) and 66.9% (79/118) of isolates, respectively. All S. maltophilia strains were able to produce biofilms. Strains were classified as weak (47.9%, 57/119), moderate (38.7%, 46/119), or strong (13.4%, 16/119) biofilm producers. A total of 89 distinct PFGE types were identified and 21.6% (22/102) of the isolates were distributed in nine clusters. This is the first study in Mexico to reveal characteristics of clinical isolates of S. maltophilia. Clonal diversity data indicate low crosstransmission of S. maltophilia in a hospital setting. The high antibiotic resistance underscores the need for continuous surveillance of S. maltophilia in hospital settings in Mexico. " 2014 The Authors.