Capitales mínimos y los establecimientos de crédito Su impacto en la seguridad y competencia del sistema financiero y en la democratización del crédito

En el mes de agosto de 1999 el Congreso de Colombia expidió la ley 510, por la cual aumentó los capitales mínimos que deben acreditar los Establecimientos de Crédito que pretendan ingresar o funcionar en el mercado, disponiendo que aquellos que no

Libertad de empresa bancaria e intervención estatal entre el derecho particular y la potestad pública

La regulación normativa debe partir del supuesto de libertad económica e iniciativa privada, de forma que el negocio bancario se desarrolle en condiciones transparentes de mercado que permitan la correcta asignación del ahorro y su democratización.

El sistema financiero del siglo xxi a partir de la Ley 45 de 1990

La Ley 45 de 1990 representa un momento estelar en la historia de la legislación financiera de Colombia. Pero abarcó mucho más: reguló la actividad aseguradora, incursionó en el contrato de seguro, reguló el sistema previsional y delineó el régimen bursátil. Así mismo, anticipó lineamientos de lo que sería, un año después, la consagración de tales actividades -financiera, aseguradora, bursátil y previsional- como de rango constitucional. Este libro recoge las reflexiones de expertos sobre las diversas temáticas abordadas en dicha ley, con la visión enriquecida derivada del transcurso de 20 años, de varias legislaciones adicionales y de algunas crisis nacionales y foráneas. Escrutar en su veintenario es un ejercicio válido y oportuno, tanto más como que al haber renovado los arquetipos de la legislación precedente, sirvió además como referente de empeños de enmienda normativas de otros países de la región y de los organismos multilaterales.

Teología, 2003, Tomo XL nº 082 (número completo)

Nota del Director. Novedades del 2004 -- Lo objetivo y lo subjetivo de la redención cristiana. Síntesis histórica y perspectiva actual / Leonardo Capelluti -- En torno a la beatificación de Isabel la Católica. Amor a la Iglesia. Pobreza / Melquíades Andrés Martín -- Razón teológica y tutela del embrión humano / Alejandro C. Llorente -- Religión y Ciencia en el pensamiento de Juan Pablo II: importancia y responsabilidad del diálogo para una cultura verdaderamente humana / Jorge Papanicolau -- La Iglesia en Buenos Aires durante la epidemia de fiebre amarilla de 1871 según el Diario de la epidemia Mardoqueo Navarro / Jorge Ignacio García Cuerva -- Ars artium: vigencia de la lógica clásica / Oscar H. Beltrán -- Crónica de la Facultad 2003

C165 INST-D 2013. 346 Surtido de sombreros tradicionales tejidos en fibras vegetales de fique, estropajo, amero de maíz, palmas e hilo, calceta de plátano y otras fibras vegetales.

15 fotografías, diez a color.

A search for star formation around the Galactic halo B-type star PHL 346 with the 2dF spectrograph

A preliminary search for stars that may have formed coevally with the apparently young halo B-type star PHL 346 has been performed with the 2dF multifibre spectrograph on the Anglo- Australian Telescope (AAT). Candidates were selected for spectroscopy from APM scans of B and R Schmidt plates centred on PHL 346. A total of 476 stars of spectral type A or F were found; radial velocity estimates and more accurate spectral type assignments narrowed the number of possible coeval candidates to 6 A-type and 14 F-type stars. A statistical analysis of these results using a comparison with a control field suggests that the number of A-type or F-type candidate stars around PHL 346 is not unexpected, and that they need not be associated with PHL 346. A number of ways to improve the project are suggested.

SGK1 activity in Na+ absorbing airway epithelial cells monitored by assaying NDRG1-Thr(346/356/366) phosphorylation

Studies of HeLa cells and serum- and glucocorticoid-regulated kinase 1 (SGK1) knockout mice identified threonine residues in the n-myc downstream-regulated gene 1 protein (NDRG1-Thr(346/356/366)) that are phosphorylated by SGK1 but not by related kinases (Murray et al., Biochem J 385:1-12, 2005). We have, therefore, monitored the phosphorylation of NDRG1-Thr(346/356/366) in order to explore the changes in SGK1 activity associated with the induction and regulation of the glucocorticoid-dependent Na+ conductance (G (Na)) in human airway epithelial cells. Transient expression of active (SGK1-S422D) and inactive (SGK1-K127A) SGK1 mutants confirmed that activating SGK1 stimulates NDRG1-Thr(346/356/366) phosphorylation. Although G (Na) is negligible in hormone-deprived cells, these cells displayed basal SGK1 activity that was sensitive to LY294002, an inhibitor of 3-phosphatidylinositol phosphate kinase (PI3K). Dexamethasone (0.2 mu M) acutely activated SGK1 and the peak of this response (2-3 h) coincided with the induction of G (Na), and both responses were PI3K-dependent. While these data suggest that SGK1 might mediate the rise in G (Na), transient expression of the inactive SGK1-K127A mutant did not affect the hormonal induction of G (Na) but did suppress the activation of SGK1. Dexamethasone-treated cells grown on permeable supports formed confluent epithelial sheets that generated short circuit current due to electrogenic Na+ absorption. Forskolin and insulin both stimulated this current and the response to insulin, but not forskolin, was LY294002-sensitive and associated with the activation of SGK1. While these data suggest that SGK1 is involved in the control of G (Na), its role may be minor, which could explain why sgk1 knockout has different effects upon different tissues.

The VLT-FLAMES survey of massive stars: observations centered on the Magellanic Cloud clusters NGC 330, NGC 346, NGC 2004, and the N11 region

We present new observations of 470 stars using the Fibre Large Array Multi-Element Spectrograph ( FLAMES) instrument in fields centered on the clusters NGC330 and NGC346 in the Small Magellanic Cloud (SMC), and NGC2004 and the N11 region in the Large Magellanic Cloud (LMC). A further 14 stars were observed in the N11 and NGC330 fields using the Ultraviolet and Visual Echelle Spectrograph (UVES) for a separate programme. Spectral classifications and stellar radial velocities are given for each target, with careful attention to checks for binarity. In particular, we have investigated previously unexplored regions around the central LH9/LH10 complex of N11, finding similar to 25 new O-type stars from our spectroscopy. We have observed a relatively large number of Be-type stars that display permitted Fe II emission lines. These are primarily not in the cluster cores and appear to be associated with classical Be-type stars, rather than pre main-sequence objects. The presence of the Fe II emission, as compared to the equivalent width of Ha, is not obviously dependent on metallicity. We have also explored the relative fraction of Be- to normal B-type stars in the field-regions near to NGC330 and NGC2004, finding no strong evidence of a trend with metallicity when compared to Galactic results. A consequence of service observations is that we have reasonable time-sampling in three of our FLAMES fields. We find lower limits to the binary fraction of O- and early B-type stars of 23 to 36%. One of our targets (NGC346-013) is especially interesting with a massive, apparently hotter, less luminous secondary component.

The VLT-FLAMES survey of massive stars: NGC 346-013 as a test case for massive close binary evolution

Context. NGC 346-013 is a peculiar double-lined eclipsing binary in the Small Magellanic Cloud (SMC) discovered by the VLT-FLAMES survey of massive stars.

Les diplômés – no 346, été 1984

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