oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

4 ( 1 )

3 ( 1 )

2019 ( 338 )

2018 ( 615 )

Custom range...

Search Results: 1 - 10 of 367100 matches for " Maria C Londo?o "
All listed articles are free for downloading (OA Articles)
Page 1 /367100
Display every page Item
Management of biliary complications after orthotopic liver transplantation: The role of endoscopy
Maria C Londoo, Domingo Balderramo, Andrés Cárdenas
World Journal of Gastroenterology , 2008,
Abstract: Biliary complications are significant causes of morbidity and mortality after orthotopic liver transplantation (OLT). The estimated incidence of biliary complications after OLT ranges between 10%-25%, however, these numbers continue to decline due to improvement in surgical techniques. The most common biliary complications are strictures (both anastomotic and non-anastomotic) and bile leaks. Most of these problems can be appropriately managed with endoscopic retrograde cholangiography (ERC). Other complications such as bile duct stones, bile casts, sphincter of Oddi dysfunction, and hemobilia, are less frequent and also can be managed with ERC. This article will review the risk factors, diagnosis, and endoscopic management of the most common biliary complications after OLT.
La Autoridad en el caso de una Alianza: Preguntas desde la gestión
Londoo C,Diana;
Pensamiento & Gestión , 2008,
Abstract: authority as a type of power is the characteristic selected by weber ([1922]1997) for describing the business enterprise. the new institutional economics (nie) has recognized authority as the explanation for the existence of the firms because it permits lowering coordination costs if compared with those of the market. today, cooperation agreements or alliances are common and some new institutional economists have considered the costs of structuring the contracts that make them pos- sible but they have left authority behind and with it, the coordination of activities in those alliances where no new firm is constituted. this subject is the one that is considered, and the analysis of one case is the source for the different questions asked. in the case studied, two parallel authority structures leave areas in which authority becomes diffuse and coordination debilitates.
La Autoridad en el caso de una Alianza: Preguntas desde la gestión
Diana Londoo C
Pensamiento & Gestión , 2008,
Abstract: La Autoridad como un tipo de poder es la característica seleccionada por Weber ([1922]1997) para describir la empresa capitalista y ésta ha sido reconocida por la economía neoinstitucional como explicación para la existencia de las firmas dada su capacidad para la disminución de costos de coordinación si se compara con los del mercado. Hoy son frecuentes los acuerdos de cooperación, y si bien se ha indagado sobre los costos de estructurar el contrato que los propician, se ha obviado el tema de la autoridad como base de la coordinación, la cual se queda sin sustento en esos tipos de acuerdos en los que no se crea una nueva empresa. Al rededor del tema se plantean preguntas apoyadas en el caso de una alianza en la que dos estructuras paralelas dejan espacios en los cuales la autoridad se desdibuja y se debilita la coordinación. Authority as a type of power is the characteristic selected by Weber ([1922]1997) for describing the business enterprise. The New Institutional Economics (NIE) has recognized authority as the explanation for the existence of the firms because it permits lowering coordination costs if compared with those of the market. Today, cooperation agreements or alliances are common and some New Institutional Economists have considered the costs of structuring the contracts that make them pos- sible but they have left authority behind and with it, the coordination of activities in those alliances where no new firm is constituted. This subject is the one that is considered, and the analysis of one case is the source for the different questions asked. In the case studied, two parallel authority structures leave areas in which authority becomes diffuse and coordination debilitates.
Neurocysticercosis, Meningioma, and Silent Corticotroph Pituitary Adenoma in a 61-Year-Old Woman
Maria del Pilar Ramirez,Juan E. Restrepo,Luis V. Syro,Fabio Rotondo,Francisco J. Londoo,Luis C. Penagos,Humberto Uribe,Eva Horvath,Kalman Kovacs
Case Reports in Pathology , 2012, DOI: 10.1155/2012/340840
Abstract: We report here the case of a 61-year-old woman who presented with hydrocephalus and cystic and solid lesions in sella turcica, suprasellar areas, and third ventricle. After ventriculoperitoneal shunt she developed cognitive changes and the cystic lesions enlarged. Magnetic resonance imaging (MRI) demonstrated multiple cysts and a solid lesion in the sella and around the anterior clinoid process. With diagnosis of neurocysticercosis she underwent craniotomy. Pathologic examination documented two different lesions: viable and dead cysticerci with inflaming infiltration and a left anterior clinoidal meningioma. At the second surgery, six weeks later via transnasal transsphenoidal approach a silent corticotroph pituitary adenoma was removed which was studied by histology, immunohistochemistry, and electron microscopy. To our knowledge, the occurrence of these three different lesions in the sellar area was not described before. 1. Introduction Cysticercosis is the most frequent helminthic disease of the central nervous system. It is endemic in Latin America, Asia, and Africa and it is frequently diagnosed in immigrant populations all over the world. It develops after ingestion of eggs of Taenia solium. The embryo crosses the intestinal mucosa, enters the circulation, and reaches solid organs preferentially the brain and muscles. Neurocysticercosis refers to central nervous system infection by the parasite. It can be parenchymal or extraparenchymal. In the parenchymal form the cysticerci are within the brain parenchyma. In extraparenchymal disease the cysticerci migrate in the cerebrospinal fluid (CSF) to the ventricles, cisterns, subarachnoid space, or spinal cord [1–3]. By altering host defenses the cysticerci are able to survive in the human brain resulting in only minimal host inflammation around them. Eventually the parasite loses its ability to control the host defenses and an inflammatory response leads to the death of the cysticerci. The parasite becomes encased in a granuloma, which either resolves or leads to a scar and calcification. There is a wide variability in the immunological reaction of the host as well as in the multiple lesions induced by the parasites [1]. 2. Case Report A 61-year-old woman presented with two months history of headache and acute hydrocephalus with small cystic lesions in the skull base and intracranial calcifications as documented by MRI. A ventriculoperitoneal (VP) shunt was inserted and the clinical diagnosis of neurocysticercosis was made. She received albendazol for three weeks. 6 months later she developed severe
Las "Tienda Granja" como escenarios de promoción de la gastronomía local y sus posibilidades asociadas al turismo: El caso de los "Hofl?den" (Mecklenburg, Vorpommern - Alemania) y las "Agrobotigues" (Catalu?a -Espa?a)
Leal Londoo,Maria del Pilar;
Estudios y perspectivas en turismo , 2011,
Abstract: the article compares the region of mecklenburg-vorpommern (germany) and catalonia (spain), illustrating one of the diversification strategies of rural areas in northern and southern europe by means of the so called "farm shops" and shows how they can contribute in promoting the local culinary products sold to tourists. to achieve this, it compares the products and the way they are sold in the two areas and concludes that there is a tendency to promote the local products linked with the territory, reflected in quality labels such as "appellations of origin (do ) "," protected geographical indications (pgi) "or " bio products ".
Análisis de la planificación y gestión del sistema de abastecimiento y distribución mayorista de alimentos en Barcelona y su área metropolitana (1971-2008)
Leal Londoo Maria del Pilar
Cuadernos de Geografía - Revista Colombiana de Geografía , 2011,
Abstract: El artículo identifica y valora los aspectos que estructuran la planificación y la gestión del sistema de abastecimiento, y la distribución mayorista de alimentos en Barcelona; así como los factores que han permitido su crecimiento y consolidación como una de las centrales mayoristas de alimentos más importantes del sur de Europa. A partir de este análisis, se pretende determinar si es posible adaptar este sistema a otros territorios. Para lograrlo, se realizó la revisión documental y estadística de la entidad, desde su creación hasta el a o en el cual se desarrolló esta investigación: 1971-2008. Dicha información se complementó con la observación directa de sus actividades.
Las "Tienda Granja" como escenarios de promoción de la gastronomía local y sus posibilidades asociadas al turismo: El caso de los "Hofl den" (Mecklenburg, Vorpommern - Alemania) y las "Agrobotigues" (Catalu a -Espa a) The "Farm Shops" as Platform for Promoting Local Gastronomy and its Potential Associated with Tourism: The Case of "Hofl den" (Mecklenburg-Vorpommern Germany) and "Agrobotigues" (Catalonia, Spain)
Maria del Pilar Leal Londoo
Estudios y perspectivas en turismo , 2011,
Abstract: El artículo compara la región de Mecklenburg - Vorpommern (Alemania) y Catalu a (Espa a), ilustrando una de las estrategias de diversificación de las áreas rurales en Europa norte y sur como lo son las denominadas "tiendas granja" y, a la vez, como éstas pueden contribuir a la promoción de la gastronomía local a partir de los productos comercializados para el turismo. Para hacerlo se comparan los productos y su comercialización, en donde de manera general en los dos territorios se observa la tendencia a la promoción local a partir del vínculo territorial de los productos, plasmados en sellos de calidad como las "Denominaciones de Origen (DO)", "las Indicaciones Geográficas Protegidas (IGP)" o los sellos "Bio". The article compares the region of Mecklenburg-Vorpommern (Germany) and Catalonia (Spain), illustrating one of the diversification strategies of rural areas in Northern and Southern Europe by means of the so called "farm shops" and shows how they can contribute in promoting the local culinary products sold to tourists. To achieve this, it compares the products and the way they are sold in the two areas and concludes that there is a tendency to promote the local products linked with the territory, reflected in quality labels such as "Appellations of Origin (DO ) "," protected geographical indications (PGI) "or " Bio products ".
Papel de las metodologías de ense?anza del proceso lectoescritural en la educación superior
Cárdenas-Londoo,Rogelio;
Cuadernos de Contabilidad , 2009,
Abstract: the purpose of this paper is to analyze the different teaching strategies implemented by teachers in higher education to teach the processes behind the activities of reading and writing and to ponder which ones work properly in order to share them via an educational and didactic replica. the perspective of our reflections is a cognitive one, since this field of knowledge, apart from presenting an important methodological and categorical horizon, also reflects on the activities of reading and writing as incomplete processes in permanent need of revision and discussion. this paper goes through the following steps; first, we focus on identifying the different voices that define reading and writing as a social practice, both understood as a collection of actions, operations, and ideologies materialized in objects, texts, and exchanges of diverse nature. with that, we would like to underscore that reading and writing, apart from reacting to a particular context and history, both activities and skills have deep political implications vis-à-vis education and personal development. second, we attempt to get together successful strategies to show others, who are now starting to work in this field, that it is possible to establish a methodological road to better understand and teach both skills. finally, we want to incite the university's academic community to the construction of collaborative work networks that fosters dialogue among peers and boost the need for the creation of new spaces for reflection and action.
South American Climatology and Impacts of El Ni?o in NCEP’s CFSR Data
Timothy Paul Eichler,Ana C. Londoo
Advances in Meteorology , 2013, DOI: 10.1155/2013/492630
Abstract: Understanding regional climate variability is necessary in order to assess the impacts of climate change. Until recently, the best methods for evaluating regional climate variability were via observation networks and coarse-gridded reanalysis datasets. However, the recent development of high-resolution reanalysis datasets offers an opportunity to better evaluate the climatologically diverse continent of South America. This study compares NCEP’s CFS reanalysis dataset with NCEP’s coarser-resolution reanalysis II dataset to determine if CFS reanalysis improves our ability to represent the regional climate of South America. Our results show several regional differences between the CFSR and Re2 data, especially in areas of large topographical gradients. A comparison with the University of Delaware and TRMM precipitation datasets lends credence to some of these differences, such as heavier precipitation associated with anomalous 925?hPa westerlies over northwestern Peru and Ecuador during El Ni?o. However, our results also stress that caution is advised when using reanalysis data to assess regional climate variability, especially in areas of large topographical gradient such as the Andes. Our results establish a baseline to better study climate change, especially given the release of IPCC AR5 model simulations. 1. Introduction Representing summer climatology in South America is complicated by the diversity of its topographical features. As noted by Garreaud et al. [1], the Andes act as a climatological barrier separating arid conditions to the west in the Peru-Bolivian Atacama Desert from wet conditions to the east in the Amazon Basin. The aridity in the Atacama Desert is related to the position of the southeastern Pacific subtropical high, which causes large-scale subsidence [2, 3]. The ability of the Andes to block tropospheric flow also results in a rain shadow in the Altiplano [4]. The precipitation that does occur in the area is confined mostly to austral summer (DJF) and is driven by diurnal convection and the westward transport of moisture from the interior of the continent [5–7]. With the recent implementation of high-resolution reanalysis datasets, it would be interesting to assess their ability to simulate South American climatology. This study compares the high-resolution CFSR data with coarse-grid reanalysis II (hereafter referred to as Re2) applied to South American climatology and interannual variability. The high-resolution reanalysis data will also allow us to detect features not seen in the coarse resolution data such as the climatological
ENSO Impacts on Lomas Formation in South Coastal Peru: Implications for the Pliocene?
Timothy Paul Eichler,Ana C. Londoo
Advances in Meteorology , 2013, DOI: 10.1155/2013/175947
Abstract: Lomas formations in southern Peru are related to moisture availability due to frequent incursions of fog in austral winter. Due to warming of coastal waters of southern Peru during El Ni?o, lomas formations are enhanced via greater moisture availability for fog and drizzle. Our study evaluates the modern climatological record in austral winter to determine if there are differences in moisture availability between El Ni?o and La Ni?a for fog formation. Our results show anomalous northwesterly onshore flow, warmer than normal sea-surface temperatures, and an increase in precipitable water in El Ni?o, favoring lomas formations due to advection fog with higher moisture content. On the other hand, La Ni?a also favors frequent advection fog, with less moisture content due to strong onshore flow over relatively cool SSTs. Since lomas may represent fragments of a continuous vegetation belt that existed during the Pliocene, a permanent El Ni?o favoring vigorous vegetation production along the south Peruvian coast due to incursions of fog with high precipitable water may have occurred in this period. However, the possibility of normal El Ni?o variability superimposed on a warmer climatology producing fog with higher moisture content in both El Ni?o and La Ni?a conditions cannot be discounted. 1. Introduction An aspect of the local climate in the arid, coastal regions of southern Peru is the appearance of vegetation oasis areas known as lomas [1–3]. The modern-day existence of lomas may represent remnants of a continuous vegetation belt along the coast of South America during the Pliocene (e.g., [4]). The existence of lomas is tied to advective fog from the South Pacific [5]. An increase in vegetation in lomas areas may be related to greater water availability for fog during El Ni?o (e.g., [6, 7]). Paradoxically, Manrique et al. [7] indicate that despite a lower frequency of fog during El Ni?o, a greater amount of fog and water collection occurred over southern Peru and northern Chile during the 1997-1998 El Ni?o [8]. Manrique et al. [7] further state that it was not possible to separate increases in water content due to austral summer drizzle from austral winter fog. However, Manrique et al. [7] suggest that El Ni?o induced precipitation increases in austral summer may be a short-term response. Therefore, long-term climate response of lomas formation due to El Ni?o may be due to greater moisture availability from fog advecting from warmer sea-surface temperature (SST) windward of the coast of southern Peru. Given the potential linkage of enhanced lomas formation
Page 1 /367100
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.