Integrated management of arroyo arroyo León - Hondo subbasin in the west urban land district of Barranquilla, Colombia

Este artículo de muestra los resultados de una investigación que concluyó en una Propuesta de Plan de Gestión Integral de la Subcuenca del Arroyo León - Hondo, la cual se formuló con el enfoque de Gestión Integrada de Cuencas y dentro del concepto de gestión del riesgo, entendida esta como el conjunto de herramientas tendientes a reducir la vulnerabilidad de un territorio frente a amenazas del entorno y para reducir su riesgo ambiental. La formulación del Plan de Gestión Integral de la Subcuenca del Arroyo León - Hondo se enmarca en el enfoque metodológico de Fuerzas Motrices - Presión - Estado - Impacto - Respuestas (FMPEIR), propuesto por el PNUMA, el cual analiza las interrelaciones entre la sociedad humana y el medio ambiente haciendo énfasis en los servicios de los ecosistemas y su relación con el bienestar humano.Abstract: This article shows concluded research results of a Comprehensive Management Plan of the Arroyo Leon - Hondo Sub-basin proposal formulated from the approach of Integrated Waters- hed and within the risk management concept, understood as a set of tools aimed at reducing the vulnerability of a territory against environmental threats and reduces their environmental risk. The formulation of the Comprehensive Management Plan of the Arroyo Leon –Hondo Sub-basin is part of Driving Forces – Pressure – State – Impact - Responses, DFPSIR, a methodological approach proposed by UNEP, which analyzes the interrelationships between human society and environment with an emphasis on ecosystem services and their relationship to human welfare

¿Cuánta carga asistencial suponen las dermatosispediátricas en la actividad ambulatoria en ladermatología espa˜nola? Resultados del muestreoaleatorio nacional DIADERM

Un total de 20.097 diagnósticos fueron efectuados en pacientes menores de18 a˜nos, lo que supone un 12% del total de los codificados en DIADERM. Las infecciones víri-cas, el acné y la dermatitis atópica fueron los diagnósticos más comunes (43,9% de todos losdiagnósticos). No se observaron diferencias estadísticamente significativas en la proporción dediagnósticos atendidos en las consultas monográficas frente a las generales, así como en losregistrados en el ámbito público frente al privado. Tampoco las hubo en los diagnósticos enfunción de la época de la encuesta (enero y mayo).Conclusiones: La atención a pacientes pediátricos por parte de dermatólogos en Espa˜na suponeuna proporción significativa de la actividad habitual. Estos datos nos permiten descubrir áreasde mejora en la comunicación y la formación de los pediatras de atención primaria, comola necesidad del refuerzo de actividades formativas dirigidas al mejor tratamiento de acné ylesiones pigmentadas (y manejo básico de la dermatoscopia) en este ámbito asistencial.SurveyAbstractBackground: Visits for skin conditions are very common in pediatric primary care, and many ofthe patients seen in outpatient dermatology clinics are children or adolescents. Little, however,has been published about the true prevalence of these visits or about their characteristics.Material and methods: Observational cross-sectional study of diagnoses made in outpatientdermatology clinics during 2 data-collection periods in the anonymous DIADERM National Ran-dom Survey of dermatologists across Spain. All entries with an International Classification ofDiseases, Tenth Revision code related to dermatology in the 2 periods (84 diagnoses) were collec-ted for patients younger than 18 years and classified into 14 categories to facilitate analysisand comparison.Results: In total, the search found 20 097 diagnoses made in patients younger than 18 years (12%of all coded diagnoses in the DIADERM database). Viral infections, acne, and atopic dermatitiswere the most common, accounting for 43.9% of all diagnoses. No significant differences wereobserved in the proportions of diagnoses in the respective caseloads of specialist vs. generaldermatology clinics or public vs. private clinics. Seasonal differences in diagnoses (January vs.May) were also nonsignificant.Conclusions: Pediatric care accounts for a significant proportion of the dermatologist’s caseloadin Spain. Our findings are useful for identifying opportunities for improving communication andtraining in pediatric primary care and for designing training focused on the optimal treatmentof acne and pigmented lesions (with instruction on basic dermoscopy use) in these settings.El estudio DIADERM fue promovido por la Fundación Piel Sanade la AEDV, que recibió ayuda económica de Novarti

Controlling a Mouse Pointer with a Single-Channel EEG Sensor

Goals: The purpose of this study was to analyze the feasibility of using the information obtained from a one-channel electro-encephalography (EEG) signal to control a mouse pointer. We used a low-cost headset, with one dry sensor placed at the FP1 position, to steer a mouse pointer and make selections through a combination of the user’s attention level with the detection of voluntary blinks. There are two types of cursor movements: spinning and linear displacement. A sequence of blinks allows for switching between these movement types, while the attention level modulates the cursor’s speed. The influence of the attention level on performance was studied. Additionally, Fitts’ model and the evolution of the emotional states of participants, among other trajectory indicators, were analyzed. (2) Methods: Twenty participants distributed into two groups (Attention and No-Attention) performed three runs, on different days, in which 40 targets had to be reached and selected. Target positions and distances from the cursor’s initial position were chosen, providing eight different indices of difficulty (IDs). A self-assessment manikin (SAM) test and a final survey provided information about the system’s usability and the emotions of participants during the experiment. (3) Results: The performance was similar to some brain–computer interface (BCI) solutions found in the literature, with an averaged information transfer rate (ITR) of 7 bits/min. Concerning the cursor navigation, some trajectory indicators showed our proposed approach to be as good as common pointing devices, such as joysticks, trackballs, and so on. Only one of the 20 participants reported difficulty in managing the cursor and, according to the tests, most of them assessed the experience positively. Movement times and hit rates were significantly better for participants belonging to the attention group. (4) Conclusions: The proposed approach is a feasible low-cost solution to manage a mouse pointe

Identification of potential sources of airborne 0lea pollen in the southwest Iberian Peninsula

Regional scale transport of olive pollen can result in increased nighttime concentrations of this important aeroallergen. This could be particularly important in Mediterranean countries where people can be outdoors during this time due to climate and lifestyle. Such studies are valuable for allergy sufferers and health care professionals because the information can be incorporated into forecasts, the outputs of which are used for avoiding exposure to aeroallergens and planning medication. The results of studies of this nature can also be used for examining gene flow in this important agricultural crop

EVALUACIÓN IN VITRO DE LA REMOCIÓN DE PLOMO EN AGUAS RESIDUALES POR Photobacterium damselae

Con la finalidad de mitigar los impactos ambientales ocasionados por plomo en aguas residuales de sectores como: minero, petroquímico, metalúrgico, otros, se realizó una evaluación in vitro de la remoción de plomo utilizando Photobacterium damselae. En la fase de aislamiento y bioestimulación las cepas obtenidas fueron sometidas a un proceso de selección en un medio de cultivo modificado, al cual se añadieron concentraciones de 20 y 100 ppm de Pb, obteniendo finalmente la cepa pura que mostró resistencia y/o tolerancia al Pb. La determinación de la capacidad para remover Pb en aguas residuales se observó en dos condiciones: incubación en temperatura controlada (25 C) e incubación en temperatura ambiente de Quito-Ecuador (zona sur a 2 800 msnm). La caracterización bioquímica de la bacteria fue realizada utilizando el Kit de Microgen GN-ID A+B. En la elaboración de las curvas de cinética de crecimiento bacteriano y remoción de Pb, se utilizaron técnicas de turbidimetría y absorción atómica, se destaca que Photobacterium damselae presentó una mayor facilidad de crecimiento a un máximo de 72 horas y a una concentración de 20 ppm en incubación a temperatura ambiente lográndose una remoción de hasta el 69% del plomo en el medio. De lo cual se infiere el potencial que tiene esta bacteria y se abren oportunidades para continuar estudios a futuro.// In order to mitigate the environmental impacts caused by lead in wastewater from sectors such as: mining, petrochemical, metallurgical and others, an in vitro evaluation of lead removal using Photobacterium damselae was carried out. Considering isolation and biostimulation phase, obtained isolate was subjected to a selection process in a modified culture medium, to which concentrations of 20 and 100 ppm of Pb were added, finally obtaining the pure strain that showed resistance and /or tolerance to Pb. To determinate the remotionÂŽs capacity of Pb in wastewater two conditions were observed: incubation at controlled temperature (25 C) and incubation at room temperature in Quito- Ecuador (southern zone at 2800msnm). Biochemical characterization of the bacteria was performed using the GN-ID A + B Microgen Kit. In the development of bacterial growth kinetics curves and Pb removal curves, turbidimetry and atomic absorption techniques were used, it was noted that Photobacterium damselae presented a greater rate of growth to a maximum of 72 hours and a concentration of 20 ppm in incubation at room temperature achieving a removal rate of 69% of the lead in the medium. From this information, the potential of this bacterium is inferred and opportunities are opened to continue studies in the future

Preventing incisional ventral hernias: important for patients but ignored by surgical specialities? A critical review.

Purpose Incisional ventral hernias (IHs) are a common complication across all surgical specialities requiring access to the abdomen, pelvis, and retroperitoneum. This public health issue continues to be widely ignored, resulting in appreciable morbidity and expenses. In this critical review, the issue is explored by an interdisciplinary group. Methods A group of European surgeons encompassing representatives from abdominal wall, vascular, urological, gynecological, colorectal and hepato-pancreatico-biliary surgery have reviewed the occurrence of His in these disciplines. Results Incisional hernias are a major public health issue with appreciable morbidity and cost implications. General surgeons are commonly called upon to repair IHs following an initial operation by others. Measures that may collectively reduce the frequency of IH across specialities include better planning and preparation (e.g. a fit patient, no time pressure, an experienced operator). A minimally invasive technique should be employed where appropriate. Our main recommendations in midline incisions include using the ‘small bites’ suture technique with a ≥ 4:1 suture-to-wound length, and adding prophylactic mesh augmentation in patients more likely to suffer herniation. For off-midline incisions, more research of this problem is essential. Conclusion Meticulous closure of the incision is significant for every patient. Raising awareness of the His is necessary in all surgical disciplines that work withing the abdomen or retroperitoneum. Across all specialties, surgeons should aim for a < 10% IH rate.pre-print146 K

COLLECE 2.0: Un sistema para el aprendizaje colaborativo de la programación sobre Eclipse, con una metáfora multidimensional para la visualización de programas

La programación de ordenadores es una tarea compleja y un reto para los estudiantes principiantes. Son numerosas las dificultades para entender los conceptos de programación debido al alto nivel de abstracción que requiere su aprendizaje. Con el propósito de contribuir a paliar estas dificultades, hemos desarrollado el sistema COLLECE-2.0, un plug-in para la plataforma Eclipse, que proporciona un entorno colaborativo de programación, distribuido y en tiempo real. Su interfaz ha sido diseñada para potenciar los aspectos relacionados con el soporte al aprendizaje en grupo. Además, nuestra propuesta hace un especial énfasis en la visualización de los programas, incorporando un conjunto de representaciones gráficas multidimensionales basadas en una metáfora. Estas representaciones son aplicables a una variedad de escenarios que soportan diferentes mecanismos de interacción, dependiendo de la dimensionalidad de las representaciones gráficas y de los dispositivos empleados para su visualización. En este artículo se describen los detalles fundamentales del sistema COLLECE-2.0 y cómo pude emplearse en distintos escenarios, para visualizar e interactuar con aspectos estructurales de los programas y algoritmos.Computer programming is a complex task and a challenge for novice programmers. There are a wide range of difficulties in understanding programming concepts due to the high level of abstraction required to learn them. In order to address these difficulties, we have developed the COLLECE-2.0 system, a plug-in for the Eclipse platform, which provides a real-time, distributed, collaborative programming environment. Its interface has been designed to enhance aspects related to support for group learning. In addition, our proposal makes a special emphasis on the program visualization, incorporating a set of multidimensional graphic representations based on a metaphor. These representations are applicable to a variety of scenarios that support different interaction mechanisms, depending on the dimensionality of the graphic representations and the devices used for their visualization. This paper describes the main details of the COLLECE-2.0 system and how it can be used in different scenarios by visualizing and interacting with structural aspects of the programs and algorithms.Este trabajo ha sido financiado por el Ministerio de Economía, Industria y Competitividad y por el Fondo Europeo de Desarrollo Regional, con referencia TIN2015-66731-C2-2-R

Coulomb-explosion imaging of CH2+: target-polarization effects and bond-angle distribution

The effect of target polarization fields on the bond-angle distribution following the foil-induced Coulomb explosion of CH2+ has been measured. Incorporating a detailed model description of the polarization effects and other target effects into a Monte Carlo simulation of the experiment, a good description of the various observables is obtained. In particular, the bond-angle distribution is found to agree with existing ab initio calculations.This work has been supported in part by the German-Israel Foundation for Scientific Research (GIF) under Contract No. I-707-55.7/2001, the Spanish Ministerio de Ciencia y Tecnología (Project Nos. BFM2003-04457-C02-01/02 and HA2001-0052), the DAAD in the framework of the Acciones Integrados Program 2002/03, and the European Community within the Research Training Network “Electron Transfer Reactions.” One of the authors (S.H.A.) thanks the Fundación Cajamurcia for a Postdoctoral Grant