Comments on “Efficacy and safety assessment of acupuncture and nimodipine to treat mild cognitive impairment after cerebral infarction: a randomized controlled trial"

Carta el editor de BMC Complementary and Alternative Medicine, en la que los autores muestran los resultados de aplicar apucuntura y nimodipina en el tratamiento del deterioro cognitivo leve en personas que han sufrido un infarto cerebral.Letter from the editor of BMC Complementary and Alternative Medicine, in which the authors show the results of applying apuncture and nimodipine in the treatment of mild cognitive impairment in people who have suffered a cerebral infarction.peerReviewe

Comment on "Assessment of bone mineral density in male patients with chronic obstructive pulmonary disease by DXA and quantitative computed tomography"

Valoración de los datos de la tabla 2, del trabajo "Assessment of bone mineral density in male patients with chronic obstructive pulmonary disease by DXA and quantitative computed tomography", publicado en 2016. Esta precisión se hace por los profesores del Departamento de Enfermería, de la Universidad de ExtremaduraAssessment of the data in Table 2, from the work "Assessment of bone mineral density in male patients with chronic obstructive pulmonary disease by DXA and quantitative computed tomography", published in 2016. This precision is done by the professors of the Department of Nursing, the University of ExtremadurapeerReviewe

Educational Needs and Future Prospects in the Field of Health and Safety at Work in Spain

Aiming to identify educational needs to promote employment in the field of Occupational Health and Safety in Spain, this paper analyses the matching degree between the existing university educational offer and the professional demand. Results indicate that the new official Masters are well driven but, at graduate level, a broad range of topics regarding occupational hazards should be promoted and the scope of cross subjects should be expanded. New profiles that are emerging within this field are also identified

Hillslope processes and floods zoning from a morphometric analysis in the Upper General Basin, Costa Rica

En países tropicales como Costa Rica, la incidencia de procesos de ladera e inundaciones están condicionados por las lluvias extraordinarias, el tipo de sustrato y su grado de meteorización, la sismicidad, la morfología y la inclinación del terreno. La recurrencia y magnitud de estos procesos afectan la cuenca alta del río General en términos de pérdidas económicas y muertes en sus comunidades. En este trabajo se realiza un análisis que calcula y analiza siete variables morfométricas (altimetría, inclinación del terreno, densidad de la disección, profundidad de la disección, energía del relieve, erosión potencial y erosión total). Mediante la integración espacial de las siete variables morfométricas se elaboran mapas de susceptibilidad a inundaciones y procesos de ladera. Tres categorías de susceptibilidad fueron definidas para cada peligro geomorfológico: máxima ocurrencia, ocurrencia frecuente y área potencial. Estos mapas son comparados espacialmente con la base de datos de desastres DesInventar. Un 85.15% de los reportes coinciden con las zonas identificadas como propensas a inundación y el 76.54% con las áreas susceptibles a procesos de ladera. El método morfométrico utilizado es de bajo costo, y además podría ser replicado en otras regiones tropicales y en países en vías de desarrollo como insumo de base para la toma de decisiones en la gestión del riesgo a desastres y el ordenamiento territorial.UCR::Vicerrectoría de Docencia::Ciencias Sociales::Facultad de Ciencias Sociales::Escuela de Geografí

Evolución post-lahárica de un canal proglaciar: garganta de Huiloac (México)

En el último periodo eruptivo del volcán Popocatépetl (19º 02´ N, 98º 37´ W, 5424 m) se produjeron varios lahares sin-eruptivos que modificaron la red fluvial de su ladera nororiental, donde se localiza el curso del río Huiloac. Los lahares responsables de los cambios morfológicos más importantes fueron los ocurridos en 1997 y 2001. Aunque desde entonces se han producido algunos eventos explosivos, como las recientes erupciones de mayo y junio de 2013, en la garganta de Huiloac no se ha vuelto a registrar ningún lahar relacionado con la actividad volcánica. El presente artículo propone una metodología para detectar y cuantificar los cambios morfológicos, así como determinar la diná¬mica de procesos erosivos y sedimentarios en un tramo de la garganta de Huiloac, tras el paso del lahar sin-eruptivo de 2001, durante un primer periodo de siete años. Este método combina la interpretación de una serie temporal de mapas geomorfológicos y de perfiles topográficos transversales del canal, con ayuda de herramientas de CAD (Computer-aided design) y de SIG (Sistemas de Información Geográfica). El análisis de la evolución geomorfológica y topográfica se cruza finalmente con la información meteorológica disponible sobre precipitaciones. Los resultados obtenidos muestran que la fase inicial (hasta octubre de 2002) estuvo caracterizada por la incisión y evacuación del material que colmató el cauce durante el lahar de 2001. Posteriormente, la acción geomorfológica de las aguas corrientes y la dinámica de laderas ensancharon y profundizaron el canal, aunque también se produjo sedimentación, como lo atestiguan bancos y terrazas fluvio-laháricos. La frecuencia y capacidad de los lahares secundarios, alimentados por las precipitaciones y el agua del deshielo glaciar, fueron los factores que determinaron el dominio de procesos erosivos o de sedimentación en Huiloac. De esta manera, se ha observado que en épocas menos lluviosas y con precipitaciones regulares, el canal experimentó menos variaciones morfológicas y las cantidades erosionadas son también menores, como en el periodo 2004 ‒ 2006. En cambio, las precipitaciones excepcionales en la estación seca (enero de 2002 y enero de 2004) y los aguaceros continuados al final de la estación húmeda (septiembre y octubre de 2007) activaron los procesos de erosión por incisión y por zapa lateral, lo cual produjo el vaciado de los depósitos laháricos que tapizan el canal. Una vez concluido el primer periodo de observación, se concluye que el cauce no ha alcanzado su estabilidad, ya que sus laderas fueron muy inestables debido a la fuerte pendiente que presentaron, a pesar del considerable vaciado de depósitos que ha experimentado en este lapso temporal.In the last eruptive period of Popocatépetl volcano (19º 02'N, 98º 37' W, 5424 m) several syn-eruptive lahars modified the fluvial network of the northeastern slope, where the Huiloac River is located. The lahars that produced the most important morphological changes took place in 1997 and 2001. Although some explosive events have taken place since then, such as the recent eruptions of May and June 2013, lahars related to volcanic activity have not been recorded in Huiloac gorge. This article proposes a methodology to detect and quantify morphological changes and to determine the dynamics of erosion and sedimentary processes in a section of Huiloac gorgef or the first seven years after the syn-eruptive lahar of 2001. This method combines the interpretation of a temporal series of geomorphological maps and topographic profiles across the channel using CAD (Computer-aided design) and GIS (Geographic Information Systems). Finally, the analysis of the geomorphic and topographic evolution is cross-referenced with available information on rainfall. The results show that the initial phase (up until October 2002) is characterized by incision and removal of the material that filled the river bed during the 2001 lahar. Afterwards, the geomorphological action of running water and the dynamics of slopes widened and deepened the channel, although sedimentation occurred as well, as evidenced by river-banks and lahar terraces. The frequency and capacity of secondary lahars, fed by rainfall and glacier melt water, are the factors that determine the domain of erosion or sedimentation in Huiloac. Thus, it has been observed that in seasons with less rain and regular precipitation, fewer morphological variations occurred and a smaller amount of material was eroded, such as in the period 2004 ‒ 2006. On the other hand, exceptional rainfall in the dry season (January 2002 and January 2004) or continuous rains at the end of the wet season (September and October 2007) triggered processes of erosion by incision, lateral erosion, and removal of the laharic deposits. It can be concluded, at the end of this first period of observation, that despite considerable erosion, the riverbed is still unstable due to steep slopes on the sides of the river.-- Ministerio de Economía y Competitividad (Proyecto CGL 2012-35858 (CRYOCRISIS)) -- Grupo de Trabajo BSCH/UCM:931562 Geografía de Alta MontañapeerReviewe

Geomorphological Hazards in Costa Rica: Upper General River Basin

In tropical countries as Costa Rica, landslides and floods are triggered by intense precipitation events, weathering, rock control, seismicity, morphology and the slope angle. The recurrence and magnitude of these processes provoke economic losses and casualties in the communities of the Upper General River Basin in the center-south of the country. The current work determines based on morphogenetic and morphometric maps, the higher susceptibility zones affected by these geomorphological hazards. In the past events such as the Buenavista earthquake (1983), hurricanes Joan (1988), César (1996), tropical storm Alma (2008), and hurricane Nate (2017) caused human losses and serious economic damage to vital lines (roads, electric lines, and aqueducts) as well as in the agricultural secto

The ASSERT Virtual Machine Kernel: Support for preservation of temporal properties.

The ASSERT Project1 is aimed at defining new software engineering methods and tools for the development of critical embedded real-time systems in the aerospace domain. One of its main achievements is a new model-driven software process, which is based on the concept of property-preserving model transformations. Functional models developed with appropriate tools for the application domain are embedded in containers defining component interfaces and non-functional (e.g. timing) properties in a platform-independent set of notations. The resulting model is then automatically transformed to a platform-specific model using deployment information on target computer nodes, communication channels, and software platforms. Finally, source code for each computer node is automatically generated from the platform-specific model. The key element of the ASSERT process is that non-functional properties must be preserved during all phases of model transformations. In order to ensure that properties are preserved in model transformations and that the different views of each model are consistent with each other, a common meta-model has been defined which provides a formal basis to the whole process. This meta-model is called the Ravenscar Computational Model (RCM)

Communication Paradigms for High-Integrity Distributed Systems with Hard Real-Time Requirements

The development and maintenance of high-integrity software is very expensive, and a specialized development process is required due to its distinctive characteristics. Namely, safety-critical systems usually execute over a distributed embedded platform with few hardware resources which must provide real-time communication and fault-tolerance. This work discusses the adequate communication paradigms for high-integrity distributed applications with hard real-time requirements, and proposes a restricted middleware based on the current schedulability theory which can be certified and capable to obtain the required predictability and timeliness of this kind of systems

A New Approach to Memory Partitioning in On-board Spacecraft Software. In Fabrice Kordon and Tullio Vardanega (eds.), Reliable Software Technologies

The current trend to use partitioned architectures in on-board spacecraft software requires applications running on the same computer platform to be isolated from each other both in the temporal and memory domains. Memory isolation techniques currently used in Integrated Modular Avionics for Aeronautics usually require a Memory Management Unit (MMU), which is not commonly available in the kind of processors currently used in the Space domain. Two alternative approaches are discussed in the paper, based on some features of Ada and state-of-the art compilation tool-chains. Both approaches provide safe memory partitioning with less overhead than current IMA techniques. Some footprint and performance metrics taken on a prototype implementation of the most flexible approach are included