Design and technical evaluation of an enhanced location-awareness service enabler for spatial disorientation management of elderly with mild cognitive impairment

The progressive ageing of population has turned the mild cognitive impairment (MCI) into a prevalent disease suffered by elderly. Consequently, the spatial disorientation has become a significant problem for older people and their caregivers. The ambient-assisted living applications are offering location-based services for empowering elderly to go outside and encouraging a greater independence. Therefore, this paper describes the design and technical evaluation of a location-awareness service enabler aimed at supporting and managing probable wandering situations of a person with MCI. Through the presence capabilities of the IP multimedia subsystem (IMS) architecture, the service will alert patient's contacts if a hazardous situation is detected depending on his location. Furthermore, information about the older person's security areas has been included in the user profile managed by IMS. In doing so, the service enabler introduced contribute to “context-awareness” paradigm allowing the adaptation and personalization of services depending on user's context and specific conditions or preferences

AALUMO: a user model ontology for ambient assisted living services supported in next-generation networks

Ambient Assisted Living (AAL) services are emerging as context-awareness solutions to support elderly people?s autonomy. The context-aware paradigm makes applications more user-adaptive. In this way, context and user models expressed in ontologies are employed by applications to describe user and environment characteristics. The rapid advance of technology allows creating context server to relieve applications of context reasoning techniques. Specifically, the Next Generation Networks (NGN) provides by means of the presence service a framework to manage the current user's state as well as the user's profile information extracted from Internet and mobile context. This paper propose a user modeling ontology for AAL services which can be deployed in a NGN environment with the aim at adapting their functionalities to the elderly's context information and state

Piebaldism: case report and literature review

Presentamos el caso de una niña de dos meses de edad con máculas acrónicas en cara, tronco y extremidades y un mechón de pelo blanco frontal presentes desde el nacimiento que corresponde a piebaldismo. El Piebaldismo es una enfermedad de la piel autosómica dominante que se caracteriza clínicamente por un mechón de pelo blanco y áreas de despigmentación debido a ausencia congénita de melanocitos en las zonas afectadas por mutaciones en el gen KIT que afecta la diferenciación y migración de los melanoblastos. Su curso es permanente y estático, es decir no aparecen nuevas lesiones y ocasionalmente surgen áreas de hiperpigmentación dentro de las lesiones acrónicas. Aunque estos pacientes por lo demás están sanos, ésta enfermedad produce repercusión psicosocial y el tratamiento constituye un verdadero reto a veces con resultados poco satisfactorios siendo las nuevas técnicas quirúrgicas con microinjertos de melanocitos autólogos cultivados lo más promisorio en cuanto a repigmentación localizada de las lesiones de piebaldismo.[Caballero LM, Mosquera H. Piebaldismo: reporte de un caso y revisión de la literatura. MedUNAB 2006, 9:72-75].Palabras clave: piebaldismo, leucodermia, poliosis, mechón de pelo blanco.We present the case of a two-month-old girl with achronic macules on the face, trunk and extremities and a tuft of white frontal hair present from birth that corresponds to piebaldism. Piebaldism is an autosomal dominant skin disease that is clinically characterized by a patch of white hair and areas of depigmentation due to congenital absence of melanocytes in areas affected by mutations in the KIT gene that affects the differentiation and migration of melanoblasts. Its course is permanent and static, that is, new lesions do not appear and occasionally areas of hyperpigmentation appear within the achronic lesions. Although these patients are otherwise healthy, this disease produces psychosocial repercussions and the treatment constitutes a real challenge, sometimes with unsatisfactory results, with the new surgical techniques with micrografts of cultured autologous melanocytes being the most promising in terms of localized repigmentation of the lesions. piebaldism. [Caballero LM, Mosquera H. Piebaldism: case report and review of the literature. MedUNAB 2006, 9:72-75]. Key words: piebaldism, leukoderma, poliosis, white hair tuft

A resignification of the formation of the political subject in schoo

La presente investigación tuvo como propósito la comprensión sobre la formación del sujeto político en contextos escolares, con la finalidad de generar su resignificación gestado en la pluridimensionalidad, la cual se despliega en lo emocional, político y ético. Se adoptó un paradigma situado en las ciencias sociales críticas, con un enfoque fenomenológico, a través de un diseño metodológico desde Visión Comprensiva, situado en cinco fases: fundamentación, caracterización, comprensión, transformación y creación. Para la recolección de información se utilizaron entrevistas semiestructuradas aplicadas a diez estudiantes, así como grupos focales aplicados en docentes y un directivo. La investigación avanzó en la comprensión de los imaginarios instituidos, los cuales obstaculizan la ruptura de la heteronomía de los sujetos y el pleno desarrollo de actitudes, acciones, interacciones y relaciones en los ámbitos, social, escolar y familiar. Se identificaron algunas aperturas del imaginario radical instituyente que permiten la transformación y creación de un sujeto político autónomo. Adicionalmente, la escuela como satisfactor sinérgico para la formación de subjetividades políticas desde las potencialidades de los sujetos en ambientes escolares enfrenta carencias. Por último, se derivó la recomendación para una propuesta teórico - práctica desde la pedagogía de la autonomía con énfasis en la acción para resignificar el sujeto político en el contexto escolar.The purpose of this research was to understand the political subject’s formation in educational contexts to generate their resignification developed in the pluridimentionality that unfolds emotionally, politically, and ethically. It adopted a paradigm in critical social science, with a phenomenological approach through a methodological design from a Comprehensive Vision located in five phases: foundation, characterization, comprehension, transformation, and creation. To gather the information, ten students presented semi-structured interviews, and teachers and a principal applied focus groups. The research moved toward an understanding of the instituted imaginaries that hinder the rupture of the heteronomy of the subjects and the full development of attitudes, actions, interactions, and relations in social, academic, and familiar areas. It identified some openings from the instituting radical imaginary to allow the transformation and creation of an autonomous political subject. Furthermore, the school as a synergistic satisfier for the formation of political subjectivities from the potential of the subjects in educational environments faces limitations. Finally, it drifted the recommendation of a theoretical-practical proposal from the pedagogy of autonomy emphasizing the action to resignify the political subject in the educational context.Magíster en EducaciónMaestrí

Mangrove Forests Evolution and Threats in the Caribbean Sea of Colombia

Colombia has approximately 379,954 hectares of mangrove forests distributed along the Pacific Ocean and the Caribbean Sea coasts. Such forests are experiencing the highest annual rate of loss recorded in South America and, in the last three decades, approximately 40,000 hectares have been greatly affected by natural and, especially, human impacts. This study determined, by the use of Landsat multispectral satellite images, the evolution of three mangrove forests located in the Colombian Caribbean Sea: Malloquin, Totumo, and La Virgen swamps. Mangrove forest at Mallorquin Swamp recorded a loss of 15 ha in the period of 1985-2018, associated with alterations in forest hydrology, illegal logging, urban growth, and coastal erosion. Totumo Swamp lost 301 ha in the period 1985-2018 associated with changes in hydrological conditions, illegal logging, and increased agricultural and livestock uses. La Virgen Swamp presented a loss of 31 ha in the period of 2013-2018 that was linked to the construction of a roadway, alterations of hydrological conditions, illegal logging, and soil urbanization, mainly for tourist purposes. Although Colombian legislation has made efforts to protect mangrove ecosystems, human activities are the main cause of mangrove degradation, and thus it is mandatory for the local population to understand the value of the ecosystem services provided by mangroves

El Centro de Investigación y Documentación del Eucalipto (CIDEU): una herramienta al servicio de la Investigación Universitaria

El CIDEU es el primer Centro de sus caracteristicas en Europa. Se ha concebido combinando las siguientes particularidades: ser un Centro de Investigacion y Documentacion, tener vocacion de servicio social, establecerse a traves de Internet y ubicarse en el marco de la Universidad de Huelva. Todo ello le convierte en un Centro de Investigacion forestal de primer orden que permitira tanto a estudiantes como a docentes y personal investigador de la Universidad de Huelva, disponer de un conjunto de herramientas y servicios que facilitaran, incrementaran y enriqueceran notablemente su labor investigadora. En la presente comunicacion se detallan los objetivos, lineas de trabajo y caracteristicas de funcionamiento que definen al CIDEU

EVALUACIÓN DEL CRECIMIENTO DE ARVEJA VERDE (Pisum sativum) BAJO EL EFECTO DE LA INOCULACIÓN CON RHIZOBIUM EN DIFERENTES CONCENTRACIONES

Se evaluó el crecimiento de plantas de  Arveja verde (Pisum sativum) bajo el efecto de la inoculación de bacterias de Rhizobium con el fin de determinar cuál de la tres concentraciones utilizadas presenta el mejor rendimiento, es decir, aquella que incrementa el desarrollo de las variables agronómicas medidas: Altura del Tallo (AT), Grosor del Tallo (GT), Número de Hojas (NH), Materia Seca Radicular (MSR) y Materia Seca Aérea (MSA). Se utilizaron cuatro tratamientos cada uno con 21 replicas (T0 = Tratamiento Control, T1=7,25X109 bacterias/ml; T2=3,26X109 bacterias/ml; T3=5,00X108 bacterias/ml). Las plantas se cultivaron en condiciones de invernadero en un sustrato estéril constituido por 2/3 de humus y 1/3 de cascarilla de arroz. Se realizaron Análisis de Varianza (P=0.05) y posteriormente una Prueba de Rangos Múltiples de Duncan al mismo nivel de significancia. Los resultados muestran que de las variables analizadas las únicas que  presentaron  diferencias significativas frente a los diferentes tratamientos fueron el GT y la MSR, y que el T2 es el que genera una mejor respuesta en el aumento de la biomasa de las plantas de P. sativum.Palabras claveRhizobium, Fijación Biológica de Nitrógeno, Crecimiento de Pisum sativum, Inoculación.

Effects of Topography and Surface Soil Cover on Erosion for Mining Reclamation: The Experimental Spoil Heap at El Machorro Mine (Central Spain)

Mining reclamation tries to reduce environmental impacts, including accelerated runoff, erosion and sediment load in the nearby fluvial networks and their ecosystems. This study compares the effects of topography and surface soil cover on erosion on man-made slopes coming from surface mining reclamation in Central Spain. Two topographic profiles, linear and concave, with two surface soil covers, subsoil and topsoil, were monitored for two hydrologic years. Sediment load, rill development and plant colonization from the four profiles were measured under field conditions. The results show that, in the case of this experiment, a thick and non-compacted topsoil cover on a linear slope yielded less sediment than carbonate colluvium or topsoil cover on a concave slope. This study also shows that vegetation establishment, which plays an important role in erosion control, depends on topography. Plant cover was more widespread and more homogeneous on linear profiles with topsoil cover. On concave slopes, plant establishment was severely limited on the steepest upper part and favoured in the bottom. This study suggests that management of topography and surface soil cover should be approached systematically, taking three outcomes into consideration: (i) topsoil can lead to a successful mining reclamation regardless of topography, (ii) created concave slopes can lead to a successful mining reclamation and (iii) topography determines the vegetation colonization pattern.The experiment was funded by a research contract between the Spanish mining company 602 CAOBAR S.A. and the Department of Geodynamics of the Complutense University of Madrid 603 (research contract numbers 234/2007, 290/2008 261/2009). The data analyses and manuscript 604 production were developed within two Research Projects, CGL2009-14508-C02-01 and 605 CGL2010-21754-C02, of the Spanish Ministry of Science and Technology and by the 606 Ecological Restoration network REMEDINAL-2 (S2009/AMB-1783).Peer reviewe

Role of the dental surgeon in the early detection of adults with underlying HIV infection / AIDS

A review is made of the late diagnosis of human immunodeficiency virus (HIV) infection, a subject of growing interest in public health. It has been estimated that in Europe 30% of all HIV-infected people are unaware of their seropositive condition, and this in turn is associated with a poorer long-term disease prognosis and an increased risk of transmission to other individuals. The role of the dental surgeon in this context could be of great importance, since there are many oral lesions that can suggest the existence of underlying infection. The study also addresses the controversial subject of rapid HIV testing, and whether these tests should be performed on a routine basis in the dental clinic, or whether it is preferable to refer the patient to a specialized center

Concepciones de comprensión lectora en un grupo de docentes universitarios : una exploración a partir de un estudio de caso típico

En este trabajo de informe de investigación se pretende presentar los resultados de la identificación y caracterización de las concepciones de comprensión lectora que tiene un grupo de docentes encargados de la formación de estudiantes de lengua castellana. La intención fundamental es indagar por las concepciones implícitas, a partir de un estudio cualitativo con un diseño de caso de tipo múltiple. La revisión bibliográfica que se plantea nos lleva a dos conceptos fundamentales: el primero el de concepción y teorías implícitas de aprendizaje, y el segundo el de comprensión lectora. El desarrollo de las concepciones y teorías de aprendizaje facilitó el análisis de la teoría directa, la interpretativa, la constructiva y la visión posmoderna, y el de comprensión lectora nos llevó a establecer los conceptos de modelos de comunicación, contexto y tipos de lector dentro del marco de los modelos mentales. Se llevó a cabo el proceso por medio de una entrevista semiestructurada que se aplicó a cada uno de los profesores escogidos para la muestra, una vez realizado el análisis de contenido a partir de las categorías preexistentes y emergentes se procede a la discusión que arroja como el desconocimiento de del desarrollo de los procesos cognitivos para mejorar los aspectos insertos en el tema de la comprensión. Así como una fuerte tendencia en la práctica a la teoría directa, pero con una explicación constructiva de la teoría interpretativa, se asimila el discurso constructivo como explicación de las prácticas que se llevan a cabo.The present study makes an analysis of the perception of students to evaluation practices in the classroom and its relation with the academic performance of students by using a secondary database analysis from the 9° 2009 test. The sample was constituted of 5.278 students, part of the controlled subsample from the sample applicative. For the analysis, structural equations were adjusted making use of exploratory and confirmatory factor analysis to the variables related to evaluation practices, zone variables, sector and socioeconomic quintile, and the plausible values scores in the areas of mathematics, language and sciences. The results reported five factors about evaluation practices in mathematics, language and sciences after the following variables were analyzed: knowledge evaluation, feed-back evaluation, evaluation assessment, use frequency of homework types, and homework as evaluation practice. These factors are explained since variations were reported from the use perception in each one of the areas, with respect to the zone, sector, socioeconomic quintile, and student performance scores variables.Magíster en EducaciónMaestrí