380 research outputs found
Joan Pau Xammar i Sala (c. 1593-1666) i el seu entorn. Una aproximació cultural i professional
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El proyecto educativo de un CRAE: una experiencia de construcción participativa
In 1971 the Fundació Fàtima opened a centre for children in the neighbourhood of El Carmel, and this is now a Residential Educational Action Centre (CRAE: Centre Residencial d’Acció Educativa). The extension of the age range, originally children in the 0-5 years group and then up to age 12, led to the implementation of a new model of organization and pedagogical practice, making it necessary to review and update the Centre Educational Programme (PEC: Programa Educatiu de
Centre). The Centre’s management entrusted this task to the Consulting and Studies team at the Fundació Pere Tarrés, with a view to supporting the development of a document based
on the reflection and the empowerment of the Centre’s educators. The PEC thus proved to be a perfect theme for initiating a participatory dynamic in the ongoing construction and reconstruction of the Educational Project of the Llar Infantil Fàtima.En 1971 la Fundación Fàtima inauguró un centro para atender a niños/as en el barrio del Carmelo. Actualmente es un Centro Residencial de Acción Educativa (CRAE). La ampliación de la franja de edad en los niños atendidos, originariamente de 0 a 5 años y posteriormente hasta los 12 años, tuvo como consecuencia la aplicación de un modelo organizativo y de práctica pedagógica, por lo que fue necesario revisar y actualizar el Programa Educativo de Centro (PEC). La Dirección de la Llar encargó esta tarea al área de Consultoría y Estudios de la Fundación Pere Tarrés, con el objetivo de dar soporte a la elaboración de un documento asentado sobre unas bases de reflexión y apoderamiento del equipo de educadores. Así, el PEC es convertiría en un eje temático perfecto para iniciar una dinámica participativa en la construcción continua del Proyecto Educativo de la Llar Infantil Fàtima
Tuberculosis in Swiss captive Asian elephants: microevolution of Mycobacterium tuberculosis characterized by multilocus variable-number tandem-repeat analysis and whole-genome sequencingle-number tandem-repeat analysis and whole-genome sequencing
Zoonotic tuberculosis is a risk for human health, especially when animals are in close contact with humans. Mycobacterium tuberculosis was cultured from several organs, including lung tissue and gastric mucosa, of three captive elephants euthanized in a Swiss zoo. The elephants presented weight loss, weakness and exercise intolerance. Molecular characterization of the M. tuberculosis isolates by spoligotyping revealed an identical profile, suggesting a single source of infection. Multilocus variable-number of tandem-repeat analysis (MLVA) elucidated two divergent populations of bacteria and mixed infection in one elephant, suggesting either different transmission chains or prolonged infection over time. A total of eight M. tuberculosis isolates were subjected to whole-genome sequence (WGS) analysis, confirming a single source of infection and indicating the route of transmission between the three animals. Our findings also show that the methods currently used for epidemiological investigations of M. tuberculosis infections should be carefully applied on isolates from elephants. Moreover the importance of multiple sampling and analysis of within-host mycobacterial clonal populations for investigations of transmission is demonstrated
Genomic Epidemiology of Multidrug-Resistant Mycobacterium tuberculosis During Transcontinental Spread
The transcontinental spread of multidrug-resistant (MDR) tuberculosis is poorly characterized in molecular epidemiologic studies. We used genomic sequencing to understand the establishment and dispersion of MDR Mycobacterium tuberculosis within a group of immigrants to the United States. We used a genomic epidemiology approach to study a genotypically matched (by spoligotype, IS6110 restriction fragment length polymorphism, and mycobacterial interspersed repetitive units-variable number of tandem repeat signature) lineage 2/Beijing MDR strain implicated in an outbreak of tuberculosis among refugees in Thailand and consecutive cases within California. All 46 MDR M. tuberculosis genomes from both Thailand and California were highly related, with a median difference of 10 single-nucleotide polymorphisms (SNPs). The Wat Tham Krabok (WTK) strain is a new sequence type distinguished from all known Beijing strains by 55 SNPs and a genomic deletion (Rv1267c) associated with increased fitness. Sequence data revealed a highly prevalent MDR strain that included several closely related but distinct allelic variants within Thailand, rather than the occurrence of a single outbreak. In California, sequencing data supported multiple independent introductions of WTK with subsequent transmission and reactivation within the state, as well as a potential super spreader with a prolonged infectious period. Twenty-seven drug resistance-conferring mutations and 4 putative compensatory mutations were found within WTK strains. Genomic sequencing has substantial epidemiologic value in both low- and high-burden settings in understanding transmission chains of highly prevalent MDR strain
Tracking a Tuberculosis Outbreak Over 21 Years: Strain-Specific Single-Nucleotide Polymorphism Typing Combined With Targeted Whole-Genome Sequencing
Background. Whole-genome sequencing (WGS) is increasingly used in molecular-epidemiological investigations of bacterial pathogens, despite cost- and time-intensive analyses. We combined strain-specific single-nucleotide polymorphism (SNP) typing and targeted WGS to investigate a tuberculosis cluster spanning 21 years in Bern, Switzerland. Methods. On the basis of genome sequences of 3 historical outbreak Mycobacterium tuberculosis isolates, we developed a strain-specific SNP-typing assay to identify further cases. We screened 1642 patient isolates and performed WGS on all identified cluster isolates. We extracted SNPs to construct genomic networks. Clinical and social data were retrospectively collected. Results. We identified 68 patients associated with the outbreak strain. Most received a tuberculosis diagnosis in 1991-1995, but cases were observed until 2011. Two thirds were homeless and/or substance abusers. Targeted WGS revealed 133 variable SNP positions among outbreak isolates. Genomic network analyses suggested a single origin of the outbreak, with subsequent division into 3 subclusters. Isolates from patients with confirmed epidemiological links differed by 0-11 SNPs. Conclusions. Strain-specific SNP genotyping allowed rapid and inexpensive identification of M. tuberculosis outbreak isolates in a population-based strain collection. Subsequent targeted WGS provided detailed insights into transmission dynamics. This combined approach could be applied to track bacterial pathogens in real time and at high resolutio
First insights into the phylogenetic diversity of Mycobacterium tuberculosis in Nepal
BACKGROUND: Tuberculosis (TB) is a major public health problem in Nepal. Strain variation in Mycobacterium tuberculosis may influence the outcome of TB infection and disease. To date, the phylogenetic diversity of M. tuberculosis in Nepal is unknown. METHODS AND FINDINGS: We analyzed 261 M. tuberculosis isolates recovered from pulmonary TB patients recruited between August 2009 and August 2010 in Nepal. M. tuberculosis lineages were determined by single nucleotide polymorphisms (SNP) typing and spoligotyping. Drug resistance was determined by sequencing the hot spot regions of the relevant target genes. Overall, 164 (62.8%) TB patients were new, and 97 (37.2%) were previously treated. Any drug resistance was detected in 50 (19.2%) isolates, and 16 (6.1%) were multidrug-resistant. The most frequent M. tuberculosis lineage was Lineage 3 (CAS/Delhi) with 106 isolates (40.6%), followed by Lineage 2 (East-Asian lineage, includes Beijing genotype) with 84 isolates (32.2%), Lineage 4 (Euro-American lineage) with 41 (15.7%) isolates, and Lineage 1 (Indo-Oceanic lineage) with 30 isolates (11.5%). Based on spoligotyping, we found 45 different spoligotyping patterns that were previously described. The Beijing (83 isolates, 31.8%) and CAS spoligotype (52, 19.9%) were the dominant spoligotypes. A total of 36 (13.8%) isolates could not be assigned to any known spoligotyping pattern. Lineage 2 was associated with female sex (adjusted odds ratio [aOR] 2.58, 95% confidence interval [95% CI] 1.42-4.67, p = 0.002), and any drug resistance (aOR 2.79; 95% CI 1.43-5.45; p = 0.002). We found no evidence for an association of Lineage 2 with age or BCG vaccination status. CONCLUSIONS: We found a large genetic diversity of M. tuberculosis in Nepal with representation of all four major lineages. Lineages 3 and 2 were dominating. Lineage 2 was associated with clinical characteristics. This study fills an important gap on the map of the M. tuberculosis genetic diversity in the Asian reg
Apropiaciones discursivas en dos comedias de Aristófanes
Bimestre VeranoSeminarioAprobado Resolución N° 2256/1
En torno a la gratuidad en la comedia antigua
Resumen temporalmente no disponible. La presente obra no cuenta con resumen provisto por el autor.Fil: Coscolla, María José. Universidad de Buenos Aires. Facultad de Filosofía y Letras
Lengua y cultura griega II
Segundo CuatrimestreMateriaPrograma N.° 0548Aprobado Resolución N.° 2758/1
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