6 research outputs found
La influencia climática en el comportamiento humano y en las decisiones polĂticas desde la perspectiva de la ciudad de Cartagena
En el marco del presente artĂculo se analizan los diferentes marcos regulatorios respecto al cambio climático a nivel mundial, además de realizarse un recorrido por distintos aspectos en el que la climatologĂa puede afectar en el comportamiento humano y las decisiones que toman los gobernantes, acercándose a nociones básicas de la biometeorologĂa y ahondando en las medidas tomadas por la ciudad de Cartagena para hacerle frente a esta crisis que por fin no pasa desapercibida para los gobiernos del mundo
2016 ESC/EAS Guidelines for the Management of Dyslipidaemias
The Task Force for the Management of Dyslipidaemias of the European Society of Cardiology (ESC) and European Atherosclerosis Society (EAS)  Developed with the special contribution of the European Assocciation for Cardiovascular Prevention & Rehabilitation (EACPR)  ABI : ankle-brachial inde
Microvesicles in vascular homeostasis and diseases. Position Paper of the European Society of Cardiology (ESC) Working Group on Atherosclerosis and Vascular Biology
Microvesicles are members of the family of extracellular vesicles shed from the plasma membrane of activated or apoptotic cells. Microvesicles were initially characterised by their pro-coagulant activity and described as "microparticles". There is mounting evidence revealing a role for microvesicles in intercellular communication, with particular relevance to hemostasis and vascular biology. Coupled with this, the potential of microvesicles as meaningful biomarkers is under intense investigation. This Position Paper will summarise the current knowledge on the mechanisms of formation and composition of microvesicles of endothelial, platelet, red blood cell and leukocyte origin. This paper will also review and discuss the different methods used for their analysis and quantification, will underline the potential biological roles of these vesicles with respect to vascular homeostasis and thrombosis and define important themes for future research
Analysis of the operating conditions for UAV-based on-board antenna radiation pattern measurement systems
Communications, navigation, and other related systems need to have a well-defined antenna radiation pattern. In onboard vessel systems, the radiation pattern can be much different than the one obtained for an isolated antenna (because of the vessel’s structure and other nearby radiating systems interference). Finding out the onboard antenna’s radiation pattern is a well-known problem for any shipbuilder/owner. The conventional method consists of measuring radiation patterns from a fixed antenna on the coast while the ship is navigating in circles. Recent electronic systems in the market now allow for an alternative method: keeping the ship static while an unmanned aerial vehicle (UAV) circles it, measuring the antenna’s transmitted power. This research paper examines the airspace volume and optimal flight path of an off-the-shelf UAV system for measuring the onboard antenna’s radiation pattern in the presence of physical constraints such as the vessel’s dimensions, safety zone, distance to base, Fresnel’s and multipath distances, and considering the loss due to polarization decoupling between the antenna under test and UAV’s antenna
Passive control of temperature fluctuations through a sunlight-induced spin transition in a molecule-based material
The increasing environmental protection demand has prompted the development of passive thermal regulation systems that reduce temperature fluctuations in buildings. Here, we demonstrate that the heat generated by the sun can trigger a spin transition in a spin-crossover (SCO) material, resulting in a color change. This leads to a cooling effect in respect to other similar materials, due to an increase in light reflection. In addition, when the material is cooled, a dampening of the temperature decrease is produced. Therefore, these materials could potentially be implemented for passive temperature control in buildings. Furthermore, SCO materials are remarkably stable upon cycling and highly versatile, which allows for the design of compounds with properties tailored for the desired climatic conditions and comfort temperature