The partition region qsopAB of the Coxiella burnetii plasmid QpH1 was analyzed. Locus qsopA alone appears to fulfill the partitioning function; QsopA represses its own promoter 17-fold. Two partition-associated incompatibility sites were identified: incA in a 200-bp region covering the qsopA promoter and incB in the qsopB locus.

En el presente trabajo se determinaron los parámetros colorimétricos mediante sistema CIELAB y la densidad aparente por densitometría de rayos X en madera Guazuma crinita para obtener información su calidad uso como solida o transformada. La evaluación realizó tres niveles del eje axial (basal, medio apical) una plantación 5 8 años, zona Puerto Inca, departamento Huánuco, Perú. ambas ...

UNLABELLED Mobile genetic elements play a pivotal role in the adaptation of bacterial populations, allowing them to rapidly cope with hostile conditions, including the presence of antimicrobial compounds. IncA/C conjugative plasmids (ACPs) are efficient vehicles for dissemination of multidrug resistance genes in a broad range of pathogenic species of Enterobacteriaceae ACPs have sporadically be...

Salmonella enterica subsp. enterica serovar Typhimurium strain 33676 was isolated in Mexico City, Mexico, from a patient with a systemic infection, and its complete genome sequence was determined using PacBio single-molecule real-time technology. Strain 33676 harbors an IncF plasmid carrying the extended-spectrum cephalosporin gene blaCMY-2 and a multidrug resistance IncA/C plasmid.

The INCA (Integrated Nitrogen in Catchments) model was applied to the River Tweed in the Scottish Borders, a large-scale (4400km2), spatially heterogeneous catchment, draining a wide range of agricultural land-use types, and which contributes approximately 20% of UK river flows to the North Sea. The model was calibrated for the first four years’ data record (1994 to 1997) and tested over the fo...

Papers published in Hydrology and Earth System Sciences Discussions are under open-access review for the journal Hydrology and Earth System Sciences Abstract Dissolved organic carbon concentrations ([DOC]) in surface waters are increasing in many regions of Europe and North America. These increases are likely driven by a combination of changing climate, recovery from acidification and change in...

The distribution of conjugative-plasmid-mediated 16S rRNA methylase genes among amikacin-resistant Enterobacteriaceae collected between 1995 and 1998 and between 2001 and 2006 at a university hospital in South Korea was examined, and conjugative plasmids carrying the 16S rRNA methylase genes were characterized by PCR-based replicon typing and by determination of their antimicrobial resistance p...

Process-based models are commonly used to design management strategies reduce excessive algal growth and subsequent hypoxia. However, targets typically focus on phosphorus control, under the assumption that successful nutrient reduction will solve hypoxia issues. Algal responses drivers not linear depend additional biotic abiotic controls. In order generate a comprehensive assessment of effecti...

BACKGROUND It is not clear whether the administration of radioiodine provides any benefit to patients with low-risk thyroid cancer after a complete surgical resection. The administration of the smallest possible amount of radioiodine would improve care. METHODS In our randomized, phase 3 trial, we compared two thyrotropin-stimulation methods (thyroid hormone withdrawal and use of recombinant ...