14 research outputs found
Shear wave anisotropy in northwestern South America and its link to the Caribbean and Nazca subduction geodynamics
Evaluación de las garantías del control de calidad sobre la producción, en empresas de confección del Municipio de Dosquebradas Risaralda
Un modelo de calidad le permite a una empresa realizar una revisión constante y pormenorizada de las facultades y potencialidades del producto o productos que esta comercializa. El proyecto evaluación de las garantías del control de calidad sobre la producción, en empresas de confección del municipio de Dosquebradas Risaralda tiene como objetivo evaluar en cinco empresas del municipio de Dosquebradas los modelos que desarrollan para lograr un buen control de calidad, manifestando los resultados de éstos, en beneficio del desarrollo y el crecimiento empresarial, a través de la propuesta de un nuevo modelo de calidad. Del análisis obtenido se parte para el planteamiento de un modelo de calidad basado en la norma ISO 9001: 2008 como aporte al mejoramiento de los modelos de calidad ya existentes en las empresas consultadas
La remuneración al Consejo en sociedades cotizadas del mercado continuo
Este trabajo presenta los resultados de un estudio empírico, desde una perspectiva de gobierno corporativo, sobre la remuneración al Consejo de Administración de 35 sociedades cotizadas en el mercado continuo español. Se realiza un análisis descriptivo de la política de remuneración de las sociedades y un contraste de hipótesis para valorar la influencia de la estructura de gobierno corporativo sobre la remuneración al Consejo de Administración. A partir de este análisis se logran 2 conclusiones. En primer lugar, el tamaño de la empresa y la dualidad de cargos Presidente del Consejo y primer ejecutivo son determinantes que influyen positivamente en la cuantía de la remuneración al consejo. En segundo lugar, se evidencia que la política retributiva de las sociedades tomadas como muestra presentan menor proporción y desarrollo de la remuneración variable cuando son comparadas con las sociedades Ibex 35, lo que puede resultar poco efectivo para alinear intereses con los accionistas
Understanding the complex geomorphology of a deep sea area affected by continental tectonic indentation: The case of the Gulf of Vera (Western Mediterranean)
19 pages, 11 figures, 1 table, supplementary data https://doi.org/10.1016/j.geomorph.2022.108126.-- Data availability:
Casas, D., & UTM-CSIC. (2018). FAUCES-1 Cruise, RV Sarmiento de Gamboa [Data set]. UTM-CSIC. doi: 10.20351/29SG20170925
Comas, M. & UTM-CSIC. TOPOMED-GASBATS. Cruise, RV Sarmiento de Gamboa [Data set]. UTM-CSIC.doi: 10.20351/29SG20120517We present a multidisciplinary study of morphology, stratigraphy, sedimentology, tectonic structure, and physical oceanography to report that the complex geomorphology of the Palomares continental margin and adjacent Algerian abyssal plain (i.e., Gulf of Vera, Western Mediterranean), is the result of the sedimentary response to the Aguilas Arc continental tectonic indentation in the Eurasian–Africa plate collision. The indentation is imprinted on the basement of the margin with elongated metamorphic antiforms that are pierced by igneous bodies, and synforms that accommodate the deformation and create a complex physiography. The basement is partially covered by Upper Miocene deposits sealed by the regional Messinian Erosive Surface characterized by palaeocanyons that carve the modern margin. These deposits and outcropping basement highs are then covered and shaped by Plio-Quaternary contourites formed under the action of the Light Intermediate and Dense Deep Mediterranean bottom currents. Even though bottom currents are responsible for the primary sedimentation that shapes the margin, 97% of this region's seafloor is affected by mass-movements that modified contourite sediments by eroding, deforming, faulting, sliding, and depositing sediments. Mass-movement processes have resulted in the formation of recurrent mass-flow deposits, an enlargement of the submarine canyons and gully incisions, and basin-scale gravitational slides spreading above the Messinian Salinity Crisis salt layer. The Polopo, Aguilas and Gata slides are characterized by an extensional upslope domain that shapes the continental margin, and by a downslope contractional domain that shapes the abyssal plain with diapirs piercing (hemi)pelagites/sheet-like turbidites creating a seafloor dotted by numerous crests. The mass movements were mostly triggered by the interplay of the continental tectonic indentation of the Aguilas Arc with sedimentological factors over time. The indentation, which involves the progressively southeastward tectonic tilting of the whole land-sea region, likely generated a quasi-continuous oversteepening of the entire margin, thus reducing the stability of the contourites. In addition, tectonic tilting and subsidence of the abyssal plain favoured the flow of the underlying Messinian Salinity Crisis salt layer, contributing to the gravitational instability of the overlying sediments over large areas of the margin and abyssal plainThis research has been funding by the Spanish projects: DAMAGE (CGL2016-80687-RAEI/FEDER) and FAUCES (CTM2015-65461-C2-1-R); and the Junta de Andalucía projects: RNM-148 (AGORA) P18-RT-3275 and PAPEL (B-RNM-301-UGR18). [...] This work acknowledges to IGCP 640 - S4LIDE (Significance of Modern and Ancient Submarine Slope LandSLIDEs), and to the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S
Historical and potential extinction of shrub and tree species through deforestation in the department of Antioquia, Colombia
<p>We assessed the expected historical and current species<br />richness of shrubs and trees in the Department of Antioquia,<br />northwest region of Colombia. We used the Fisher´s alpha value<br />associated with the pooled dataset of identified species in 16 1-ha<br />plots that were used to extrapolate the scaled species richness of<br />the Antioquia Province under three different scenarios: 1) the entire<br />region before deforestation began, assuming an original forest<br />cover of around 92% of the entire province (excluding paramos,<br />rivers, and lakes). 2) The forest cover in 2010. 3) The expected forest<br />cover in 2100 assuming the observed deforestation rate between<br />2000 and 2010 as a constant. We found that, despite relatively<br />low local and global losses of species, global extinctions in terms<br />of number of species could be dramatically high due to the high<br />endemism and deforestation rates.</p
Diseño y documentación de un sistema de gestión de la calidad para la empresa Calderas Continental Ltda., bajo la norma ISO NTC 9001:2000
En el diseño y documentación del Sistema de Gestión de la calidad para Calderas Continental Ltda., se elaboraron los Procesos, Manuales, Formatos, Documentos e Indicadores de Gestión que interrelacionados y unificados generan una sinergia entre las diferentes áreas de la organización permitiendo la certificación ISO 9001 Versión 2000 otorgada por el ICONTECIn the design and documentation of the quality development system for Calderas Continental Ltda., processes, manuals, documents and development indicators were elaborated. They interrelated and unified generate a synergy among the different areas of the organization and allow the certification ISO 9001 version 2000 granted by the ICONTEC
Propuesta para la seccion de la Institución educativa Gimnasio Moderno "Divino Niño" Copacabana-Antioquia.
Al emprender este proyecto de grado, se tuvo en cuenta los criterios importantes y necesarios para su realización, tal como lo aprendido en el transcurso de la carrera, y lo enseñado en el seminario taller de licitaciones y contratación estatal, aplicándolo al proyecto, propuesta para la sección de la institución educativa “gimnasio moderno divino niño”, ubicada en la Vereda el Salado, del Municipio de Copacabana, Departamento de Antioquia. De acuerdo con las instrucciones dadas en el seminario se procedió de la siguiente manera: Teniendo como base los planos arquitectónicos y estructurales del proyecto, se calcularon las cantidades de obra, actividades, análisis de precios unitarios (APU), y sub-análisis, para lo cual se emplearon herramientas versátiles tal como el Excel, software para cálculo del acero de Ferrasa (DL-NET), así también un software para la realización de la programación, mediante la utilización del programa Microsoft Project. Como resultado final de este proceso que se ejecutó en etapas secuenciales, se obtiene el presupuesto con el cual se elaboran los pliegos de condiciones, teniendo muy en cuenta la programación, de acuerdo a la normatividad vigente, la reglamentación y leyes que rigen los procesos contractuales en Colombia, partiendo de lo aprendido durante todo el desarrollo del seminario taller.Introducción. --
1. Planteamiento del problema. --
2. Justificación. --
3. Objetivos. --
3.1 Objetivo general del proyecto. --
3.2 Objetivos específicos. --
4. Metodología. --
4.1 Normatividad sobre contratación estatal. --
4.2 Consecución del proyecto. --
4.3 Cantidades de obra. --
4.4 Cotizaciones y lista de precios. --
4.5 Análisis de precios unitarios. --
4.6 Análisis del a.u. --
4.7 Programa de salud ocupacional. --
4.8 Presupuesto de obra. --
4.9 Aspectos generales relacionados con el desarrollo de la obra. --
5. Marco teórico. --
5.1 Normatividad vigente. --
5.2 Modalidades de contratación pública. --
5.2.1 Licitación pública. --
5.2.2 Selección abreviada. --
5.2.3 Concurso de méritos. --
5.2.4 Contratación directa. --
5.3 Descripción del proceso de contratación pública a través de licitaciones y concursos públicos. --
5.3.1 Iniciación del Proceso. --
5.3.2 Conveniencia de la Contratación. --
5.3.3 Elaboración de estudios técnicos. --
5.3.4 Disponibilidad Presupuestal. --
5.3.5 Información a la Cámara de Comercio. --
5.4 Elaboración de los Pliegos de Condiciones o Términos de Referencia por parte de la entidad
contratante. --
5.5 Publicación de la Información. --
5.6 Publicación de observaciones. --
5.7 Desarrollo del Proceso. --
5.7.1 Apertura. --
5.7.2 Plazo de la Licitación. --
5.7.3 Conformación Dinámica de la oferta. --
5.7.4 Audiencia de Aclaración. --
5.7.5 Presentación de las Propuestas. --
5.7.6 Evaluación de las Propuestas. --
5.7.7 Publicación de la Evaluación. --
5.7.8 Finalización del Proceso. --
5.8 Determinación del plazo para adjudicación y firma. --
5.9 Adjudicación. --
5.10 Vencimiento del plazo de adjudicación y firma. --
5.11 Perfeccionamiento. --
6. Marco geográfico. --
7. Resultados esperados. --
8. Recomendaciones. --
9. Glosario. --
10. Anexos. --
11. Bibliografía
ROV footage and high-resolution bathymetry for understanding the dynamics of the submarine Garrucha-Almanzora canyon systems
34th International Association of Sedimentologists (IAS) Meeting of Sedimentology, Sedimentology to face societal challenges on risk, resources and record of the past, 10-13 September 2019, Rome.-- 1 pageThe Garrucha and Almanzora are the northern tributaries of the submarine canyon system called Almanzora-Alías-Garrucha located in the Palomares continental margin (Southwestern Mediterranean Sea). The tributary system is deeply incised in the continental shelf that is 5 km wide and extends down to 100¿120 mwd, where the transition towards the upper continental slope starts.Multiple multibeam echosounder datasets were used to characterize this study area. 50 m resolution bathymetry data belonging to the Spanish General Secretariat of Fisheries (SGP) was merged with data recorded in the framework of the FAUCES project in order to produce high-resolution maps (10 to 2 m grid size resolution). The higher resolution data was recently collected onboard the vessel Sarmiento de Gamboa using an Atlas Hydrosweep DS and Kongsberg-Simrad EM2040 operated from the AUV AsterX. Accurate seafloor video imaging was recorded by an ARGUS ROV system. The Garrucha tributary erodes completely the continental shelf: its shallowest part reaches the infralittoral at 7-20 mwd. The Almanzora tributary is narrower and less incising: its head is located at 65¿90 m and affects the outer prodelta of the Almanzora River. In both cases a dense network of dendritic gullies along their flanks can be observed. After the convergence of the tributaries at 1100 mwd, the submarine canyon becomes wider and shows a meandering pattern. The ROV surveyed 7 nautical miles along the canyon axis at depths between 1100 and 1653 m. The images reveal a changing environment within this shelf-slope system. The ROV system recorded a great variability of depositional and erosive features such as sedimentary instabilities (isolated blocks, topples and falls) and bedforms. All these observations suggest that the tributary system funnel sediments from the coastline and shelf down to the deep sedimentary system, and also that the canyon system can act as a sediment source/reservoir in two ways: 1) sediment eroded from the canyon walls and 2) sediment released to the distal canyon after it has been temporarily deposited on the canyon floo
Submarine mass movements affecting the Almanzora-Alías-Garrucha canyon system (SW Mediterranean) (SKT)
34th International Association of Sedimentologists (IAS) Meeting of Sedimentology, Sedimentology to face societal challenges on risk, resources and record of the past, 10-13 September 2019, Rome.-- 1 pageThe Almanzora-Alías-Garrucha canyon system incises the narrow (5 km wide) continental shelf of the Palomares continental margin (SW Mediterranean Sea). The canyon is 74 km long running from west to east almost from the coastline down to 2500 meters water Depth (mwd). The canyon system is constituted by several tributary canyons such as the Almanzora, the Garrucha, the Cabrera and the Alias (from N to S) merging at 1820 mwd and resulting in a single canyon body 4 km wide, following a strait direction for 46 km.Different multibeam echosounder datasets were merged to study the canyon system. A base map belonging to the Spanish Secretary-General for Fisheries (SGP) was recently improved with data recorded in the framework of Fauces project in order to produce 10 to 2 m grid size maps of the Almanzora-Alías-Garrucha canyon. Extensive network of highresolution seismic and parametric profiles visual observations along with ROV system were also recorded. This integration has allowed mapping the morphological variability of the mass-movement features and brings new insights about the processes that shaped the canyon system. Two main areas have been differentiated: (i) the canyon head and upper course (from 7 to up 1400 mwd), where erosion and mass-movements have resulted in dense networks of dendritic gullies, minor scars and falls affecting the canyon walls. These processes have produced a progressive incision and retrogradation of the canyon heads up to almost reach the coastline; (ii) the middle and distal courses (from 1400 to up 2500 mwd), where turbidity flows and related flows have contributed to the progressive incision of the thalweg, floored by bedforms and scars affect the canyon walls. The seafloor of the southern margin of the canyon is highly irregular defining an area of about 262 km that extends from 600 to 2240 mwd affected by a composite mass flow deposits. In contrast, the northern margin presents a set of nested concave-downward scars, with a W-E trend, lengths of 2 to 8 km and slope gradients up to 17º. These recurrent mass-movements have resulted in the enlargement of the canyon and in an asymmetric bathymetric profile.By zooming over the seafloor, through the ROV observations, the canyon walls appear as near-vertical outcrops flaking by instability features . Mass flows deposits, topples/falls and metric isolated blocks are observed along the canyon floor. Although the occurrence of mass-movements is affecting the present-day seafloor, the presence of muddy sediments draping and smoothing the seafloor inside and outside of the canyon may inform about a sub-recent instability activit
Onset and sedimentary evolution of the Almanzora-Alias-Garrucha canyon (SW Mediterranean Sea): a complex interplay between geological processes
5th International Network for Submarine Canyon Investigation and Scientific Exchange International Symposium (INCISE), 14-18 June 2021The combination of high-resolution bathymetry, seismic (parametric, airguns) and image (hull mounted & AUV multi-beam echo sounders, ROV) records have allowed to decipher the onset and sedimentary evolution of the Almanzora-Alias-Garrucha canyon (hereafter, Garrucha Canyon) in the SW Mediterranean Sea. The onset of this canyon occurred in subaerial conditions during the Messinian Salinity Crisis at the end of the Miocene. The Plio-Quaternary stratigraphy and depositional architecture of the canyon floor and their deposits indicate that: canyon incision has predominated in the upper reaches; the widening of the canyon floor started at the beginning of the Quaternary; the canyon-fill deposits point to longitudinal and lateral relocations of the valley; predominance of sedimentary instability deposits that result from repeated near-surface slope failures in both margins; and the present-day canyon floor is affected throughout by cyclic steps associated with the passage of recent/subrecent gravity driven flows favoured by the canyon head interaction with coastal and fluvio-marine processes. Also, mass-transport deposits involving metric blocks, erosive scour fields and slide scars have been locally mapped.
The history of the Garrucha canyon system results from the interplay between the Messinian salinity Crisis event; the tectonic southeastwards tilting of the continental margin due to the coastal tectonic indentation of the Arc of Aguilas; the sea-level changes during the Plio-Quaternary; the semiconfined configuration of the subbasin where the canyon incises; and the interception of canyon head with the coastal and fluviomarine processes