Contexto cronológico de las primeras expansiones humanas en la cuenca circummediterránea mediante la aplicación del paleomagnetismo

Obtener una cronología clara de yacimientos con presencia humana es importante para entender cuándo comenzó la migración de los homínidos fuera de África. Como método de datación el paleomagnetismo es una herramienta útil y fácilmente aplicable: presenta un registro temporal amplio (> 180 Ma) y no es destructiva para los restos. En esta tesis doctoral se han realizado análisis paleomagnéticos en los yacimientos de Fuente Nueva 3 y Solana del Zamborino (Cuenca de Guadix-Baza, Orce) y el yacimiento de Gran Dolina (Atapuerca), con presencia humana durante el Paleolítico inferior, para ampliar la información cronológica existente e intentar determinar un mejor marco temporal de cuándo se produjo. Los resultados obtenidos proporcionan evidencia adicional de presencia humana cercana al millón de años en el nivel TD4 de Gran Dolina e incluso más antigua en Fuente Nueva 3, y se ha reevaluado la edad de la industria lítica hallada en el yacimiento de Solana del Zamborino.Ministerio de Ciencia e Innovación (MICINN) del Gobierno de España con la ayuda BES-2011-048877 del Subprograma de Formación de Personal Investigador (FPI) correspondiente al proyecto CGL2010-16821 (Primeras expansiones Humanas en la Región Circummediterránea: Contexto Geocronológico). Así mismo durante el desarrollo de la presente tesis se ha disfrutado de ayudas para la realización de estancias en el Paleomagnetic Laboratory, Fort Hoofddijk, Faculty of Geosciences, Universidad de Utrecht, Holanda (EEBB-I-13-06414) , y en el Palaeomagnetism and Rock Magnetism Research Group, Departament of Earth Sciences, en la Universidad de Oxford, Reino Unido (EEBB-I-14-09041

Propuesta acciones de mejora al Plan de capacitación para la Seguridad y Salud en el Trabajo para el personal administrativo de la Universidad Nacional de Colombia sede Medellín

Teniendo en cuenta que tanto la Universidad Nacional como la sociedad actualmente se enfrentan al reto de combatir la pandemia causada por el Covid 19, se hace indispensable que la institución Universitaria, cuente con unas acciones de mejora al plan de capacitaciones orientado desde la sección de Seguridad y Salud en el Trabajo, con todas las temáticas necesarias de acuerdo con la situación que se está viviendo y profesionales altamente preparados y capacitados, para brindar al personal administrativo un acompañamiento en la aplicación de los protocolos de bioseguridad necesarios, para afrontar esta pandemia tanto desde sus casas, como desde el campus universitario, protegiendo así la integridad de todos los funcionarios administrativos de la dicha institución.Taking into account that both the National University and society are currently facing the challenge of combating the pandemic caused by Covid 19, it is essential that the University institution have actions to improve the training plan directed from the Security section and Occupational Health, with all the necessary topics according to the situation that is being experienced and highly prepared and trained professionals, to provide administrative personnel with support in the application of the necessary biosafety protocols, to face this pandemic both from their homes, as well as from the university campus, thus protecting the integrity of all administrative officials of said institution

First magnetostratigraphic results in the Aïn Beni Mathar-Guefaït Basin, Northern High Plateaus (Morocco): The Pliocene-Pleistocene Dhar Iroumyane composite section

The Aïn Beni Mathar-Guefaït Basin, in the High Plateau Region (Morocco), is dissected by the Za River, the main eastern tributary of the Moulouya, which incises more than 150 m into Plio-Pleistocene sediments. The main goal of the present study is to provide an initial geochronologic framework for such basin infill based on a combination of magnetostratigraphy and electron spin resonance (ESR). The combined results have implications on the age of the paleontological record, the evolution of the Moulouya River, and the activity of the faults that delimit the basin. We have studied sedimentary rocks that are essentially flat-lying and of an alluvial and lacustrine/palustrine origin. An approximately 140 m-thick section has been sampled at an average of 2.5 m per site, allowing to build a local magnetic polarity stratigraphy that includes nine geomagnetic reversals. Although no fold test is available, the presence of dual polarities and rockmagnetic analysis give us confidence that magnetization directions are primary. We then anchored the obtained magnetozones to the Geomagnetic Polarity Timescale (GPTS) using the biostratigraphic data as well as local geological observations. Our proposed magnetostratigraphy-based chronology reveals a Plio-Pleistocene sedimentary infill spanning from Gauss to Olduvai Chrons. The lower, detrital formations mostly fall within the normal Gauss Chron, whereas the upper lacustrine and palustrine carbonates, which are almost widespread to the top of the sedimentary fill, are Olduvai in age. These results provide the first chronological constraints for the basin fill in one of the largest intermontane basins of the High Plateaus. The new magnetostratigraphy also reveals that the major environmental change that triggered a switch from alluvial to lacustrine-palustrine conditions in Northern Maghreb occurred near the Gauss-Matuyama reversal, ca. 2.6 Ma. In addition, it shows that the age of the paleontological site Guefaït-4 is approximately 1 myr older than the ESR ages obtained from the quartz grains. The possible sources for this underestimation are discussed. However, we also acknowledge and discuss other possible chronostratigraphic interpretations of the current data, although less likely.his work has been funded by Palarq Foundation, Spanish Ministry of Culture and Sport (42-T002018N0000042853 and 170-T002019N0000038589), Direction of Cultural Heritage (Ministry of Culture and Communication, Morocco), Faculty of Sciences (Mohamed 1er University, Oujda, Morocco)Peer reviewe

Evaluation and management of cardiovascualr risk in VIH infection : Expert consensus of ACIN (Colombian Association of Infectious Diseases)

Los pacientes con infección por VIH tienen una mayor incidencia de eventos cardiovasculares en comparación con la población general; los factores que contribuyen al incremento del riesgo de eventos cardiovasculares son la prevalencia de factores de riesgo cardiovascular tradicionales (FRCV), la infección por VIH que condiciona tanto un proceso de inflamación crónica como alteración de la función endotelial y la exposición a los antirretrovirales. Los factores que deben ser objeto de intervención son los FRCV tradicionales, en especial la alta tasa de fumadores entre este grupo de pacientes, la tamización y tratamiento de HTA, el síndrome metabólico y el acceso temprano a la terapia antirretroviral con medicamentos con mayor perfil de seguridad . Esta guía pretende proveer información y recomendaciones en el ámbito nacional acerca de la relación entre la infección por VIH/SIDA (Síndrome de Inmunodeficiencia Adquirida), uso de antirretrovirales y riesgo cardiovascular.Q1Artículo original73-91Patients with VIH infection have greater risk for cardiovascular diseases compared to general population. Risk factors that increase the frequency of cardiovascular events are: presence of cardiovascular traditional risk factors, chronic inflammation by HIV that impairs endothelial function and the exposure to antiretrovirals. The factors that should be the target for intervention are the traditional know cardiovascular factors such, especially high rate of smokers, screening and treatment for hypertension, metabolic syndrome and early access to HAART. The present guidelines provides information about the use of antiretrovirals in patients with HIV and its relation with cardiovascular risk

Prevalence of personality disorders in college students of Medellin

ABSTRACT: The purpose of this study was to establish the prevalence of personality disorders in university students in Medellín, Colombia. The Millon Clinical Multiaxial Inventory II (MCMI-II) (Millon, 1987a) was applied to 1907 students from six universities. The mean age was 22 years old, and the age range was between 16 and 63 years old. A database was built containing the following information: socio-demographic variables, direct scores and standardized scores for each disorder, and a new variable, called “cut-off point”, was established, which categorized the “presence” or “absence” of the disorders. A descriptive analysis was carried out to determine the disorders´ prevalence and the outcome, going from the strongest to the weakest, was: Borderline Personality Disorder, Passive-Aggressive Personality Disorder, Antisocial Personality Disorder, Narcissist Personality Disorder, Schizotypal Personality Disorder, Paranoid Personality Disorder, Aggressive-Sadistic Personality Disorder, Avoidant Personality Disorder, Self-Destructive Personality Disorder, Histrionic Personality Disorder, Dependent Personality Disorder, Obsessive-Compulsive Personality Disorder and Schizoid Personality Disorder.RESUMEN: El propósito del estudio fue establecer la prevalencia de los trastornos de personalidad en estudiantes universitarios de Medellín, Colombia. Se aplicó el Inventario Clínico Multiaxial de Millon (MCMI-II) (Millon, 1987a) a 1907 estudiantes universitarios de seis universidades. La edad media fue 22 años, y el rango estuvo entre 16 y 63 años. Se construyó una base de datos con la siguiente información: variables sociodemográficas, puntuaciones directas y puntuaciones de tabla base de cada trastorno, y se estableció una nueva variable denominada “punto de corte”, que categorizó la “presencia” o “ausencia” de los trastornos. Se realizó un análisis descriptivo para determinar su prevalencia que, de mayor a menor, fue: límite, pasivo-agresivo, antisocial, narcisista, esquizotípico, paranoide, agresivo-sádico, evitativo, autodestructivo, histriónico, dependiente, obsesivo-compulsivo y esquizoide

Amor, empatía y conductas prosociales: una reflexión interdisciplinaria

This book presents, through reflection, the relevance, timeliness and necessity of love, empathy and prosocial behaviors within the framework of the professional and disciplinary work of the authors. The reader will be able to find here what these professionals, academics and intellectuals think and feel about it. Let the reader know that it was not a simple writing project, maybe because of the invitation to think about oneself, maybe because of the presence of the concept of "love" in the academy, or maybe, because we are not so accustomed to putting in the first person the reflection turned from what we relate to day by day. May this text be the excuse to continue to reflect on the role of love, empathy and prosocial behavior in a world that sometimes shows great desolation. May these unknotted reflections allow us to understand and resignify, learn and continue.PublishedEste libro expone, por la vía de la reflexión, la pertinencia, actualidad y necesidad del amor, la empatía y las conductas prosociales en el marco del quehacer profesional y disciplinar de los autores. El lector podrá encontrar aquí lo que esos profesionales, académicos e intelectuales piensan y sienten al respecto. Sepa el lector que no fue un proyecto de escritura sencillo, quizá por la invitación a pensar sobre sí, quizá por la presencia del concepto “amor” en la academia, o quizá, simplemente, porque no estamos tan acostumbrados a poner en primera persona la reflexión devenida de aquello con lo que día a día nos relacionamos. Que sea este texto la excusa para continuar reflexionando sobre el papel del amor, la empatía y las conductas prosociales en un mundo que a veces muestra gran desolación. Que estas reflexiones des-anudadas permitan comprender y resignificar, aprender y continuar

Pleistocene and Holocene peopling of Jerada province, eastern Morocco: introducing a research project

The Aïn Beni Mathar – Guefaït (ABM-GFT) region in Eastern Morocco is the object of an archaeological, palaeontological, geological and geochronological research project, led by an international team since 2006. The research in this former fluvio-lacustrine basin, roughly 2000 km2, has revealed a significant number of Pleistocene and Holocene sites. Here we introduce the research project, that we conduct in the region, the main issues it aims to address, and the results already obtained

Le peuplement humain pendant le Pléistocène et l’Holocène dans la province de Jerada, Maroc oriental : introduction d’un projet de recherche

[EN] The Aïn Beni Mathar – Guefaït (ABM-GFT) region in Eastern Morocco is the object of an archaeological, palaeontological, geological and geochronological research project, led by an international team since 2006. The research in this former fluvio-lacustrine basin, roughly 2000 km2, has revealed a significant number of Pleistocene and Holocene sites. Here we introduce the research project, that we conduct in the region, the main issues it aims to address, and the results already obtained.[FR] Depuis 2006, la région de Aïn Beni Mathar – Guefaït (ABM-GFT) au Maroc Oriental, fait l’objet d’un projet de recherche en archéologie, paléontologie, géologie et géochronologie, mené par une équipe internationale. Ces recherches ont permis la découverte d’un nombre significatif de gisements d’âge Pléistocène et Holocène, dans un ancien bassin fluvio-lacustre, qui s’étend sur une surface de 2000 km2. Notre objectif ici est de présenter le projet de recherche, que nous entamons dans la région, la problématique qu’il traite et les premiers résultats déjà obtenus.Funding for this research was provided by: Palarq Foundation, Spanish Ministry of Culture and Sport (Ref: 42-T002018N0000042853 & 170-T002019N0000038589), Direction of Cultural Heritage (Ministry of Culture and Communication, Morocco), Faculty of Sciences (Mohamed 1r University of Oujda, Morocco), INSAP (Institut National des Sciences de l’Archéologie et du Patrimoine), Spanish Ministry of Science, Innovation and Universities (Ref: CGL2016-80975-P, CGL2016-80000-P, PGC2018-095489-B-I00 and PGC2018-093925-B-C31) and Research Groups Support of the Catalonia Government (2017 SGR 836 and 2017 SGR 859). R.S-R, M.G.CH., J.I.M., A.C., F.R., A.R.-H., E.A., I.E., F.B., J.A., HA.B., P.S., P.P., D.L., I.R. y E.M. research is funded by CERCA Programme/ Generalitat de Catalunya. J.I.M. and A.R.-H research is funded by the Spanish Minitry of Science and Innovation under the “María de Maeztu” Program for Unities of Excellence (CEX2019-000945-M). M.S. has been granted by the Research Program UAM Tomás y Valiente 2019. C.T. is funded by the Ramón y Cajal Program. M.F. and M.E.A. received a fellowship under the Erasmus Mundus Scholarship of the European Education and Culture Executive Agency in the Master in Quaternary and Prehistory at URV. The research of M.D. is funded by the Australian Research Council (ARC) Future Fellowship Grant FT150100215 and the Ramón y Cajal Program (RYC2018-025221-I). P.P. has been granted a post-doctoral post under the Spanish Ministry of Science and Innovation “Juan de la Cierva-Incorporación” Program (Ref. IJC2020-044108-I). E.M-R. is beneficiary of a PTA Ref. PTA201714619-I. G.G.-A. has been granted a “Ford - Apadrina la Ciencia” contract. C.D.-C has been granted a Fundación Atapuerca fellowship. A.C.A. was funded by Junta de Castilla y León (project BU235P18) and the European Regional Development Fund (ERDF). The Institut Catalá de Paleoecologia Humana i Evolució Social (IPHES-CERCA) has received financial support from the Spanish Ministry of Science and Innovation through the ‘María de Maeztu’ program for Units of Excellence (CEX2019-000945-M).Peer reviewe

Propuesta de un modelo de inventario probabilístico para los medicamentos clase A de la farmacia de una IPS en el norte del Valle.

Debido a la compleja función de las entidades sanitarias, es conveniente que los hospitales mantengan inventarios adecuados que soporten las fluctuaciones inesperadas de la demanda, producto de emergencias o prioridades que se deban tener con los pacientes. A lo anterior se suma el alto costo de ciertos fármacos, por lo cual la gestión de compras e inventario se vuelve una labor compleja. Sin embargo, para este tipo de servicio, donde el cliente final es una persona con compromiso de su salud, los hospitales deben garantizar mantener un inventario de medicamentos esenciales en función de su importancia para las necesidades de los pacientes. Por lo anterior, el presente trabajo aborda la problemática de la deficiencia en la planeación y manejo del inventario de medicamentos clase A del servicio farmacéutico, de un hospital nivel II del Norte del Valle, a través de la propuesta de un modelo probabilístico de revisión continua que contribuya a mejorar el nivel de servicio sin incurrir en sobrecostos.PregradoINGENIERO(A) EN INDUSTRIA

Successful combination of electron spin resonance, luminescence and palaeomagnetic dating methods allows reconstruction of the Pleistocene evolution of the lower Moulouya river (NE Morocco)

Based on a combination of Electron Spin Resonance (ESR) dating of quartz, luminescence dating of K-feldspar and palaeomagnetism, this study presents the first chronostratigraphic framework for the Pleistocene fluvial deposits of the lower Moulouya river in the Triffa basin (NE Morocco). K-feldspar pIRIR(225) and pIRIR(290) signals of all samples are saturated, suggesting fluvial deposition at least as early as the Middle Pleistocene (similar to 0.39-0.80 Ma). Consequently, further chronological information was obtained with ESR dating of quartz grains from the ancient Pleistocene fluvial deposits. As for ESR, the multiple centres approach provides equivalent dose values derived from the Al and Ti centres that mostly agree within 1 sigma-error, suggesting complete signal resetting from the former during fluvial transport. ESR dating results yield Calabrian deposition ages for all river profiles from similar to 1.1 to similar to 1.5 Ma. These ages are remarkably consistent with the palaeomagnetic results: the occurrence of mostly reversed polarity in the deposits indicates a Matuyama age (>0.78 Ma). While low incision rates in the Triffa basin (0.025 +/- 0.003 mm/a) related to thrusting activity during the Calabrian could be inferred, the fluvial record points to an acyclic and discontinuous sedimentation pattern over the last similar to 1.3 Ma. It thereby probably rules out climate as the main driver for fluvial aggradation in the lowermost sedimentary basin. At a regional scale, several indicators point to transient fluvial response resulting from major Quaternary tectonic activity along the Beni Snassen gorge, located directly upstream of the investigated basin. We suggest that a capture event at the margin of the uplifting Beni Snassen massif occurred between 1.04 and 1.36 Ma at the latest and subsequently led to the creation of the gorge. (C) 2018 Elsevier Ltd. All rights reserved