María Isabel Ortega

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The increase in antibiotic resistance and the possible changes in serotype prevalence as a consequence of a new conjugated vaccine have contributed to renewed interest in the study of pneumococcal serotypes and their antibiotic resistances. Spain still has one of the highest penicillin resistance rates, but in the past 4-5 years a slight decrease has been(More)
OBJECTIVES A large clonal outbreak of multidrug-resistant CC17 ST17 Enterococcus faecium containing Tn5382 in a hospital in the north of Spain is described. METHODS We characterized vancomycin-resistant E. faecium isolates from 10 infected and 40 colonized inpatients from a single hospital by PFGE, multiple-locus variable-number tandem-repeat analysis(More)
Mexican migrant and seasonal farmworkers in the US-Mexico border region face health hazards and occupational risks and are becoming commonly known in the public health literature. According to several studies, farmworkers have high levels of chronic diseases such as diabetes and respiratory problems, are at risk for infectious diseases, and experience among(More)
OBJECTIVE The aim of this study was to determine the effect of dietary fiber consumption and lifestyle on serum lipids in adult men with non-restricted diet and physical activity. METHODS Two groups of 19 men were classified as high (48 g/day) and low fiber groups (27 g/day). Anthropometry, food frequency, daily weighed intakes and physical activity were(More) shows a case of consumption and use of Linked Data from museums and their valorisation in education, through innovative end-user applications, like facet-based searches, semantic context creation and navigation through graphs, which improve user experience. The search engine enables aggregated searches by different facets and summarization of(More)
BACKGROUND Living conditions and health of migrant farmworkers could benefit from a health promotion model based on corporate social responsibility (CSR). OBJECTIVE To understand how Mexican agribusiness owners and general managers view and practice CSR. METHODS We interviewed 8 agribusiness owners/managers and 233 farmworkers using open-ended(More)
We describe the use of a computational neural network platform to optimize the fluorescence upon binding 5-carboxyfluorescein-d-Ala-d-Ala-d-Ala (5-FAM(DA)3 ) (1) to the antibiotic teicoplanin covalently attached to a glass slide. A three-level response surface experimental design was used as the first stage of investigation. Subsequently, three defined(More)
The members of the Committee appointed to examine the dissertation of CRAIG A. STEELE find it satisfactory and recommend that it be accepted. ____________________________________ Chair ____________________________________ ____________________________________ ____________________________________ ii ACKNOWLEDGMENTS Many people helped make the completion of(More)
This article presents a solution to the problem of strong authentication, portable and expandable using a combination of Java technology and storage of X.509 digital certificate in Java cards to access services offered by an institution, in this case, the technology of the University of Panama, ensuring the authenticity, confidentiality, integrity and non(More)
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