CO2 Sink Effect Of Concrete Carbonation Spain

Although carbonation of cement phases is well known, the amount of carbon dioxide combined during the process has been much less investigated. Related to the greenhouse effect much more attention is being paid to the sinks for C 0 2 in order to correctly compute the gases emission during production of materials. In the case of cement a strict calculation should discount the C 0 2 emitted from that fixed by the concrete. This is the aim of present work which is a study of the cement based materials ability to combine C 02. Using Thermogravimetry and Differential Thermal Analysis as well as phenolphthalein indicator, quantities of C 0 2 combined and carbonation depth in several cement pastes and concretes exposed to different environments have been measured. A calculation to estimate the contribution of cement based materials carbonation to the partial re-absorption of the C 02 emitted in cement production is proposed

Synthesis and evaluation of biphenyl derivatives as potential downregulators of VEGF protein secretion and telomerase-related gene expressions

A group of 47 biphenyl functionalized compounds, prepared by means of Suzuki couplings, has been investigated for their cytotoxicity on two tumoral cell lines (HT-29 and MCF-7) and one non tumoral cell line (HEK-293). 29 selected compounds have been investigated for their ability to inhibit the production of the vascular endothelial growth factor (VEGF). Subsequently, the capacity of the compounds to downregulate the expression of the VEGF, h-TERT and c-Myc genes, the two latter involved in the control of the activation of telomerase, has also been determined.Financial support has been granted to M.C. by the Ministerio de Economía y Competitividad of Spain (project CTQ2014- 52949-P), by the Consellería d´Empresa, Universitat i Ciencia de la Generalitat Valenciana (projects PROMETEO/2013/027 and ACOMP/2014/ 274) and by the University Jaume I (project PI- 1B2011-37). M. S.-P. thanks the University Jaume I for a predoctoral fellowship

Understanding Le Châtelier's principle fundamentals: five key questions

[EN] The well-known Le Châtelier's principle is almost always mentioned when dealing with chemical equilibrium. Nevertheless, although a must in most general chemistry courses starting from the secondary level, when students face questions about it, some major misconceptions are often highlighted; to avoid this, a somewhat challenging problem is now presented. It can be deemed a very useful tool for a full understanding of this principle and chemical equilibrium as a whole. A generic chemical reaction at equilibrium is subject to different types of perturbation, and the student is required ¿ in each case ¿ to identify the new position of equilibrium among a number of proposals. The correct answers are finally provided along with the corresponding explanations.Peris Tortajada, M. (2021). Understanding Le Châtelier's principle fundamentals: five key questions. Chemistry Teacher International. 1-3. https://doi.org/10.1515/cti-2020-0030S13Chang, R., & Goldsby, K. (2015). Chemistry (12th ed.). New York, U.S.A.: McGraw-Hill Education.Cheung, D. (2009). The adverse effects of Le Châtelier’s principle on teacher understanding of chemical equilibrium. Journal of Chemical Education, 86, 514. https://doi.org/10.1021/ed086p514.Hackling, M. W., & Garnett, P. J. (1985). Misconceptions of chemical equilibrium. European Journal of Science Education, 7, 205–214. https://doi.org/10.1080/0140528850070211.Novak, I. (2018). Geometrical description of chemical equilibrium and Le Châtelier’s principle: two-component systems. Journal of Chemical Education, 95, 84–87. https://doi.org/10.1021/acs.jchemed.7b00665.Petrucci, R. H., & Herring, F. G. (2016). General chemistry: principles and modern applications (11th ed.). London, U.K.: Pearson PLC.Satriana, T., Yamtinah, S., Ashadi, A., & Indriyanti, N.Y. (2018). Student’s profile of misconception in chemical equilibrium. In IOP Conf. Series: Journal of Physics: Conf. Series (1097, pp. 012066–012073). Bristol, U.K.: IOP Publishing Ltd, 012066

Puesta en valor de la ínsula I del Molinete (Barrio del Foro Romano): objetivos, criterios y resultados

En las siguientes páginas se expone la última fase del proyecto museológico desarrollado en la insula I del Molinete (Cartagena, Murcia) desde que se iniciaron las excavaciones arqueológicas en 2008. Esta intervención ha supuesto la apertura al público del centro de interpretación denominado Barrio del Foro Romano , donde se integran dos edificios alusivos a la vida cotidiana del siglo I, con un singular estado de conservación

Estudio del efecto sumidero de CO2 de los materiales de base cemento

Estudio del efecto sumidero de CO2 de los materiales de base cement

Análisis de diferentes tratamientos de tecnología de membranas en la industria del agua en España

[ES] En este proyecto se pretende describir las tecnologías de membranas más habituales como son la microfiltración, ultrafiltración, nanofiltración, ósmosis inversa. Además, se expondrán las aplicaciones más comunes centradas en el tratamiento del agua en España en las que se ha demostrado su eficacia como proceso de separación y su viabilidad económica. Finalmente, se concluirá con una valoración económica y una discusión de la principal problemática de esta tecnología en ese aspecto.[EN] In this project it is going to explain the most common membrane technologies such as microfiltration, ultrafiltration, nanofiltration, reverse osmosis. Moreover, it is also going to present the most current applications focus on water treatment in Spain, which they have been proved their removal efficiency and economic viability. Finally, it is going to discuss the main problem of this kind of technology related to its costPeris Sirvent, JM. (2018). Análisis de diferentes tratamientos de tecnología de membranas en la industria del agua en España. http://hdl.handle.net/10251/120453TFG

Synthesis and biological evaluation of truncated α-tubulin-binding pironetin analogues lacking alkyl pendants in the side chain or the dihydropyrone ring

The preparation of several new truncated analogues of the natural dihydropyrone pironetin is described. They differ from the natural product mainly in the suppression of some of the alkyl pendants in either the side chain or the dihydropyrone ring. Their cytotoxic activity and their interactions with tubulin have been investigated. It has been found that all analogues are cytotoxic towards two either sensitive or resistant tumoral cell lines with similar IC50 values in each case, thus strongly suggesting that, like natural pironetin, they also display a covalent mechanism of action. Their cytotoxicity is, however, lower than that of the parent compound. This indicates that all alkyl pendants are necessary for the full biological activity, with the ethyl group at C-4 seemingly being particularly relevant. Most likely, the alkyl groups cause a restriction in the conformational mobility of the molecule and reduce the number of available conformations. This makes it more probable that the molecule preferentially adopts a shape which fits better into the binding point in α-tubulin

The Spanish society of Parenteral and Enteral Nutrition (SENPE) and its relation with healthcare authorities

Está muy bien documentado en la literatura médica que la desnutrición es un problema común en todos los niveles de atención sanitaria, desde atención primaria a especializada y en centros de atención geriátrica. Este problema no se limita a países con pocos recursos económicos o con limitado desarrollo social y económico. También es un problema universal en Europa. La desnutrición aumenta las cifras de morbilidad, mortalidad, ingresos hospitalarios y duración de la estancia. Estas cifras más elevadas suponen lógicamente un aumento del uso de recursos sanitarios. A pesar de esto, el problema de la desnutrición a menudo puede pasar desapercibido y el paciente no recibir el tratamiento necesario. Este problema requiere la cooperación de múltiples agentes tales como los Gobiernos de los Estados, los profesionales de la salud y los mismos ciudadanos. El VIII Foro de Debate concluye con la necesidad de establecer un claro plan de actuación (a semejanza de la European Alliance for Health Nutrition) y la creación de una plataforma (coalición) que reúna las voces de asociaciones de profesionales sanitarios, instituciones, colegios profesionales, asociaciones de pacientes, industria y entidades aseguradoras. Los fines de esta plataforma consistirán en informar de la extensión del problema, identificar y potenciar líderes que transmitan los fines de esta iniciativa ante las autoridades autonómicas y nacionales, propuesta de soluciones y colaboración en su puesta en marcha y finalmente, evaluación/ control de las acciones desarrolladasIt has been well documented in medical literature that hyponutrition is a common issue at all healthcare levels, from primary to specialized health care, as well as geria - tric healthcare facilities. This problem is not limited to countries with scarce economic resources or limited social development; it is also a universal issue in Europe. Hyponutrition increases the rates of morbidity, mortality, hospital admissions, and hospital stay. These higher figures also represent a higher use of healthcare resources. In spite of this, hyponutrition may often go undetected and the patient may not receive the necessary treatment. This problem requires the cooperation of multiple agents such as the Governments, the healthcare professionals, and the citizens themselves. The VIII Discussion Forum concludes on the need to establish a clear-cut plant for action (similar to the European Alliance for Health Nutrition) and the creation of a platform (coalition) encompassing the voices of healthcare professionals associations, institutions, professional colleges, patients associations, the pharmaceutical companies, and insurance companies. The goals of this platform will be to inform about the extent of this issue, to identity and promote leaders that will convey the aims of this initiative to regional and national healthcare authorities, to present solutions and to collaborate in their implementation, and finally to assess/control the actions take

Electronic noses and tongues to assess food authenticity and adulteration

[EN] Background: There is a growing concern for the problem of food authenticity assessment (and hence the detection of food adulteration), since it cheats the consumer and can pose serious risk to health in some instances. Unfortunately, food safety/integrity incidents occur with worrying regularity, and therefore there is clearly a need for the development of new analytical techniques. Scope and approach: In this review, after briefly commenting the principles behind the design of electronic noses and electronic tongues, the most relevant contributions of these sensor systems in food adulteration control and authenticity assessment over the past ten years are discussed. It is also remarked that future developments in the utilization of advanced sensors arrays will lead to superior electronic senses with more capabilities, thus making the authenticity and falsification assessment of food products a faster and more reliable process. Key findings and conclusions: The use of both types of e-devices in this field has been steadily increasing along the present century, mainly due to the fact that their efficiency has been significantly improved as important developments are taking place in the area of data handling and multivariate data analysis methods. (C) 2016 Elsevier Ltd. All rights reserved.Peris Tortajada, M.; Escuder Gilabert, L. (2016). Electronic noses and tongues to assess food authenticity and adulteration. Trends in Food Science and Technology. 58:40-54. doi:10.106/j.tifs.2016.10.014S40545