A random version of Simons' inequality

The purpose of this paper is to provide a random version of Simons' inequality

Determination of nanogram microparticles from explosives after real open-air explosions by confocal Raman microscopy

Explosives are increasingly being used for terrorist attacks to cause devastating explosions. The detection of their post-blast residues after an explosion is a high challenge, which has been barely investigated, particularly using spectroscopic techniques. In this research, a novel methodology using confocal Raman microscopy has been developed for the analysis of post-blast residues from ten open-air explosions caused by ten different explosives (TNT, RDX, PETN, TATP, HMTD, dynamite, black powder, ANFO, chloratite, and ammonal) commonly used in improvised explosive devices. The methodology for the determination of post-blast particles from explosives consisted of examining the samples surfaces with both the naked eye, first, and microscopically (10x and 50x), immediately afterward; and finally, analysing the selected residues by confocal Raman spectroscopy in order to identify the post-blast particles from explosives. Interestingly, confocal Raman microscopy has demonstrated to be highly suitable to rapidly, selectively and non-invasively analyse post-blast microscopic particles from explosives up to the nanogram range

What kinds of innovations do we need in education?

Peer reviewe

Parallelization of an algorithm for the automatic detection of deformable objects

This work presents the parallelization of an algorithm for the detection of deformable objects in digital images. The parallelization has been implemented with the message passing paradigm, using a master-slave model. Two versions have been developed, with synchronous and asynchronous communications

La implementación de TIC en temas ambientales en la formación de profesores de enseñanza primaria

Uno de los desafíos actuales de la formación docente es la incorporación de un lenguaje nuevo que aparece de la mano de las nuevas tecnologías. Esta comunicación presenta una investigación que da cuenta de la implementación de las TIC en la formación docente, a través del uso de la plataforma educativa y del diseño de un blog para difundir el trabajo realizado por alumnos de la Cátedra de Didáctica de las Ciencias Naturales. La implementación de las TIC y el enfoque CTSA, surgen como una alternativa diferente, mediante la cual el proceso de enseñanza –aprendizaje de las ciencias se concibe como una estrategia enriquecedora en la que se tienen en cuenta diversas variables que contribuyen a motivar a los estudiantes para la reconstrucción de su conocimiento

La Palinología y su aplicación al estudio de la reconstrucción de la vegetación durante el Cuaternario : consideraciones generales

Se analiza la importancia del análisis polínico de los sedimentos de edad cuaternaria. Asimismo se plantea toda la problemática existente en la elaboración y tratamiento de los datos con vistas a la interpretación de carácter paleoclimático.In this paper are studied the problems existent from the point of view palynologic, in the analysis of sediments the Quaternary aqe, for his interpretation paleoclimaitc

La Palinología y su aplicación al estudio de la reconstrucción de la vegetación durante el Cuaternario : consideraciones generales

Se analiza la importancia del análisis polínico de los sedimentos de edad cuaternaria. Asimismo se plantea toda la problemática existente en la elaboración y tratamiento de los datos con vistas a la interpretación de carácter paleoclimático.In this paper are studied the problems existent from the point of view palynologic, in the analysis of sediments the Quaternary aqe, for his interpretation paleoclimaitc

Scavenger guild and consumption patterns of an invasive alien fish species in a Mediterranean wetland

Invasive Alien Species (IAS) alter ecosystems, disrupting ecological processes and driving the loss of ecosystem services. The common carp Cyprinus carpio is a hazardous and widespread IAS, becoming the most abundant species in many aquatic ecosystems. This species transforms ecosystems by accumulating biomass to the detriment of other species, thus altering food webs. However, some terrestrial species, such as vertebrate scavengers, may benefit from dead carps, by incorporating part of the carp biomass into the terrestrial environment. This study describes the terrestrial vertebrate scavenger assemblage that benefits from carp carcasses in a Mediterranean wetland. We also evaluate the seasonal differences in the scavenger assemblage composition and carrion consumption patterns. Eighty carp carcasses (20 per season) were placed in El Hondo Natural Park, a seminatural mesohaline wetland in south-eastern Spain, and we monitored their consumption using camera traps. We recorded 14 scavenger species (10 birds and four mammals) consuming carp carcasses, including globally threatened species. Vertebrates consumed 73% of the carrion biomass and appeared consuming at 82% of the carcasses. Of these carcasses consumed, 75% were completely consumed and the mean consumption time of carcasses completely consumed by vertebrates was 44.4 h (SD = 42.1 h). We recorded differences in species richness, abundance, and assemblage composition among seasons, but we did not find seasonal differences in consumption patterns throughout the year. Our study recorded a rich and efficient terrestrial vertebrate scavenger assemblage benefitting from carp carcasses. We detected a seasonal replacement on the scavenger species, but a maintenance of the ecological function of carrion removal, as the most efficient carrion consumers were present throughout the year. The results highlight the importance of vertebrate scavengers in wetlands, removing possible infectious focus, and moving nutrients between aquatic and terrestrial environments.JMPG was supported by Spanish Ministry of Science, Innovation and Universities contracts (IJC-2019-038968). ESG received the grants PID 2021-124744NA-I00 and RYC2019-027216-I funded by MCIN/AEI/ https://doi.org/10.13039/501100011033 and by ESF Investing in your future