Identificación de errores cometidos en el proceso de despliegue de la política: caso Megaexpress S.A.S y Merca express LTDA.

La presente investigación evalúo errores gerenciales en Megaexpress S.A.S. y Merca Express Ltda., empresas catalogadas en el grupo de micro, pequeñas y medianas empresas (mipymes) en Bogotá, Colombia; pertenecientes al sector de consumo masivo, la primera en venta al detalle o retail y la segunda en distribución a mayoristas. La investigación partió del interés de los investigadores por conocer sobre la relación entre la academia y el sector real y en cómo la academia ayuda a los gerentes a mejorar sus prácticas en la toma de decisiones al momento de enfrentar la realidad empresarial. El estudio de errores gerenciales inicio en el análisis de teoría administrativa sobre el tema abordado por los diferentes autores que conforman el marco referencial en cuanto a cuáles eran los errores en los que incurrían los gerentes y su solución o mejora. Los investigadores utilizaron la herramienta, matriz de convergencias y divergencias, para dicho análisis y de la que se desprende la encuesta, instrumento de investigación, aplicada a gerentes y jefes con personal a cargo de Megaexpress S.A.S. y Mercaexpress Ltda., con el fin de corroborar en que errores incurrían las empresas y llegar a dar recomendaciones para mejorar sus procesos en la toma de decisiones y así contribuir a la perdurabilidad de las empresas.

Risaralda: competitividad y desarrollo regional. Generación de un lenguaje común entre actores

Risaralda convive con procesos de globalización con los cuales cada vez se tienen menos barreras y, por tanto, estar preparados para competir en este escenario es un imperativo para la región. La búsqueda de la competitividad es uno de los caminos posibles. El mejoramiento de los niveles de competitividad de la región no es solo tarea del sector empresarial sino que implica un trabajo en la sociedad en todos los niveles dirigentes. Uno de los mecanismos que permiten su mejoramiento es el desarrollo de estudios de futuro y, dentro de ellos, el uso de la prospectiva como herramienta. En este contexto es importante definir los principales retos del departamento de Risaralda en materia de competitividad y las acciones que se deben emprender por parte de los actores de desarrollo regional.

Nuevas tecnologías, educación y formación : un esfuerzo necesario de adaptación a los cambios sociales.

Resumen literal de la revista. Número monográfico: La educación en el s. XXI

La Phrase dictée du jour, de la recherche à la pratique en classe

Cette communication se propose d’en présenter la première étape qui concerne des professeursstagiaires en formation initiale. Après avoir décrit l’activité, nous en analyserons la mise en pratique dans deux dispositifs de formation. Pour ce faire, nous avons élaboré des indicateurs de reconnaissance de la transformation de l’activité du professeur débutant (Garcia-Debanc, 2009; Cogis, Elalouf, Brinker, 2009). En conclusion, nous tenterons de préciser quelques-unes des conditions d’une appropriation potentiellement réussie

On the morphological differentiation between Libinia spinosa and L. ferreirae (Crustacea: Brachyura: Majoidea: Epialtidae)

Libinia spinosa H. Milne Edwards in Guérin, 1832 and L. ferreirae Brito Capello, 1871, inhabit very similar environments, and their geographic and bathymetric distributions overlap for about 3000 km along the southwestern Atlantic. Both species are commonly caught in the same haul and differentiating between them can often be difficult. Traditionally, morphological differentiation between L. spinosa and L. ferreirae has been based exclusively on the number of spines along the median, longitudinal line of the carapace and the development of a process at the anterolateral angle of the basal segment of the antenna. Because Libinia spinosa and L. ferreirae share similar numbers of median spines (7 and 6, respectively), and the number of median spines of the carapace and the process at the anterolateral angle of the basal antennal segment are variable, they are of little value in separating these species. It is shown herein that unequivocal identification can be easily achieved based on features of the male and female thoracic sternum, pereiopod dactyli, and infraorbital notch. A lectotype is designated for L. spinosa and its authorship and date are corrected. Libinia gibbosa A. Milne-Edwards, 1878, is demonstrated to be a junior synonym of L. ferreirae. The holotype of L. gibbosa is figured for the first time.

Estrogen-stimulated endothelial repair requires osteopontin

OBJECTIVE: Estradiol (E(2)) is known to accelerate reendothelialization and thus prevent intimal thickening and in-stent restenosis after angioplasty. Transplantation experiments with ERalpha(-/-) mice have previously shown that E(2) acts through local and bone marrow cell compartments to enhance endothelial healing. However, the downstream mechanisms induced by E(2) to mediate endothelial repair are still poorly understood. METHODS AND RESULTS: We show here that after endovascular carotid artery injury, E(2)-enhanced endothelial repair is lost in osteopontin-deficient mice (OPN(-/-)). Transplantation of OPN(-/-) bone marrow into wild-type lethally irradiated mice, and vice versa, suggested that osteopontin plays a crucial role in both the local and the bone marrow actions of E(2). In the vascular compartment, using transgenic mice expressing doxycyclin regulatable-osteopontin, we show that endothelial cell specific osteopontin overexpression mimics E(2)-enhanced endothelial cell migration and proliferation in the regenerating endothelium. In the bone marrow cell compartment, we demonstrate that E(2) enhances bone marrow-derived mononuclear cell adhesion to regenerating endothelium in vivo, and that this effect is dependent on osteopontin. CONCLUSIONS: We demonstrate here that E(2) acceleration of the endothelial repair requires osteopontin, both for bone marrow-derived cell recruitment and for endothelial cell migration and proliferation.

A very rare cancer in Down syndrome: medulloblastoma. Epidemiological data from 13 countries

Persons with Down syndrome (DS) uniquely have an increased frequency of leukemias but a decreased total frequency of solid tumors. The distribution and frequency of specific types of brain tumors have never been studied in DS. We evaluated the frequency of primary neural cell embryonal tumors and gliomas in a large international data set. The observed number of children with DS having a medulloblastoma, central nervous system primitive neuroectodermal tumor (CNS-PNET) or glial tumor was compared to the expected number. Data were collected from cancer registries or brain tumor registries in 13 countries of Europe, America, Asia and Oceania. The number of DS children with each category of tumor was treated as a Poisson variable with mean equal to 0.000884 times the total number of registrations in that category. Among 8,043 neural cell embryonal tumors (6,882 medulloblastomas and 1,161 CNS-PNETs), only one patient with medulloblastoma had DS, while 7.11 children in total and 6.08 with medulloblastoma were expected to have DS. (p 0.016 and 0.0066 respectively). Among 13,797 children with glioma, 10 had DS, whereas 12.2 were expected. Children with DS appear to be specifically protected against primary neural cell embryonal tumors of the CNS, whereas gliomas occur at the same frequency as in the general population. A similar protection against neuroblastoma, the principal extracranial neural cell embryonal tumor, has been observed in children with DS. Additional genetic material on the supernumerary chromosome 21 may protect against embryonal neural cell tumor development.