Latent Dirichlet Allocation (LDA) for improving the topic modeling of the official bulletin of the spanish state (BOE)

Since Internet was born most people can access fully free to a lot sources of information. Every day a lot of web pages are created and new content is uploaded and shared. Never in the history the humans has been more informed but also uninformed due the huge amount of information that can be access. When we are looking for something in any search engine the results are too many for reading and filtering one by one. Recommended Systems (RS) was created to help us to discriminate and filter these information according to ours preferences. This contribution analyses the RS of the official agency of publications in Spain (BOE), which is known as "Mi BOE'. The way this RS works was analysed, and all the meta-data of the published documents were analysed in order to know the coverage of the system. The results of our analysis show that more than 89% of the documents cannot be recommended, because they are not well described at the documentary level, some of their key meta-data are empty. So, this contribution proposes a method to label documents automatically based on Latent Dirichlet Allocation (LDA). The results are that using this approach the system could recommend (at a theoretical point of view) more than twice of documents that it now does, 11% vs 23% after applied this approach

A cloud-based tool for sentiment analysis in reviews about restaurants on TripAdvisor

The tourism industry has been promoting its products and services based on the reviews that people often write on travel websites like TripAdvisor.com, Booking.com and other platforms like these. These reviews have a profound effect on the decision making process when evaluating which places to visit, such as which restaurants to book, etc. In this contribution is presented a cloud based software tool for the massive analysis of this social media data (TripAdvisor.com). The main characteristics of the tool developed are: i) the ability to aggregate data obtained from social media; ii) the possibility of carrying out combined analyses of both people and comments; iii) the ability to detect the sense (positive, negative or neutral) in which the comments rotate, quantifying the degree to which they are positive or negative, as well as predicting behaviour patterns from this information; and iv) the ease of doing everything in the same application (data downloading, pre-processing, analysis and visualisation). As a test and validation case, more than 33.500 revisions written in English on restaurants in the Province of Granada (Spain) were analyse

Medio siglo de producción animal. Archivos de Zootecnia

Archivos de Zootecnia ha cumplido en 2001 cincuenta años de publicación ininterrumpida lo que ha permitido que casi 1400 artículos científicos vieran la luz. En los últimos diez años la revista se ha hecho más internacional habiendo centrado su atención especialmente en Genética y Producción Animal, concretamente en ganado vacuno y producción de leche y carne

New Fundamental Symmetries of Integrable Systems and Partial Bethe Ansatz

We introduce a new concept of quasi-Yang-Baxter algebras. The quantum quasi-Yang-Baxter algebras being simple but non-trivial deformations of ordinary algebras of monodromy matrices realize a new type of quantum dynamical symmetries and find an unexpected and remarkable applications in quantum inverse scattering method (QISM). We show that applying to quasi-Yang-Baxter algebras the standard procedure of QISM one obtains new wide classes of quantum models which, being integrable (i.e. having enough number of commuting integrals of motion) are only quasi-exactly solvable (i.e. admit an algebraic Bethe ansatz solution for arbitrarily large but limited parts of the spectrum). These quasi-exactly solvable models naturally arise as deformations of known exactly solvable ones. A general theory of such deformations is proposed. The correspondence ``Yangian --- quasi-Yangian'' and ``$XXX$ spin models --- quasi-$XXX$ spin models'' is discussed in detail. We also construct the classical conterparts of quasi-Yang-Baxter algebras and show that they naturally lead to new classes of classical integrable models. We conjecture that these models are quasi-exactly solvable in the sense of classical inverse scattering method, i.e. admit only partial construction of action-angle variables.Comment: 49 pages, LaTe

Archivos de Zootecnia. Informe Editorial 2010

The editorial process of Archivos de Zootecnia during 2010 is reported below. A total of 384 manuscripts were received from 33 countries, mainly from Brazil (66.9%). Consequently, the language most frequently used in the manuscripts was Portuguese, followed by Spanish and English. The mean time between submission and publication of a manuscript was 836.3 days. The rejection rate was 50.8%. In 2010, 49 articles, 21 short notes and 10 reviews (total 83) were published by authors coming from 15 countries.Se analiza el proceso editorial de Archivos de Zootecnia durante 2010. Se recibieron 384 manuscritos procedentes de 33 países, principalmente de Brasil (66,9%). Consecuentemente, el lenguaje más frecuentemente usado fue el portugués, seguido del español y el inglés. El tiempo medio entre recepción y publicación de un manuscrito fue elevado ( 836.3 dias). La tasa de rechazo fue del 50,8%. En 2010 fueron publicados 49 artículos, 21 notas breves y 10 revisiones (83 trabajos en total) cuyos autores pertenecían a 15 países diferentes

Archivos de Zootecnia: Informe Editorial 2008

The editorial process of Archivos de Zootecnia during 2008 is reported below. A total of 294 manuscripts were received from 24 countries mainly from Brazil (73%). Consequently, the language most frequently used in the manuscripts was Portuguese, followed by Spanish and English. The mean time between reception and publication of a manuscript was high (657 days). The rejection rate was 35.7%. In 2008, 42 articles, 30 short notes and 10 reviews (total 82) were published from 13 countries.Se revisa el proceso editorial de Archivos de Zootecnia durante 2008. Se recibieron 294 manuscritos procedentes de 24 países, principalmente de Brasil (73%). Consecuentemente, el primer idioma más utilizado fue el portugués seguido del español y el inglés. El tiempo medio entre recepción y publicación es elevado (657 días). La tasa de rechazo fue del 35,7%, publicándose 42 artículos, 30 notas breves y 10 revisiones bibliográficas, en total 82 contribuciones procedentes de 13 países

Electroconductivity of Al2O3/graphene nanocomposite processed by SPS technique

[EN] Electrical conductivity (rho), relative dielectric permittivity (epsilon) and dissipation factor (D) measured in graphene-alumina composites. Samples obtained by plasma spark sintering (SPS) from a mixture of raw powders: delta-alumina (36 nm average particle size) and graphene flakes (3 nm thickness and 2-3 microm length). Graphene content in samples was 0, 1 and 2% by weight. The study carried out for frequencies from 50 Hz to 100 kHz. Both rho and epsilon were higher for Al2O3-2% graphene: up to 90 microS/m and 19 respectively; while alumina with 1% graphene showed similar values to the pure alumina samples: 50 microS/m to electrical conductivity and 16 to relative permittivity. The dissipation factor was similar in the three materials tested. D increased with the frequency, reaching high values (0.7) at 100 kHz. Composites with 1 and 2% graphene content showed a dissimilar dielectric behavior with the frequency. Alumina reflected a classical behavior of the permittivity dependence with the frequency. Graphene composites also show the same behavior at frequencies above 100 Hz. Below this frequency, the presence of graphene increases the relative permittivity to exceed that from pure alumina. The graphene content leads to rise of relative permittivity, which means easier polarizability.Authors wishing to acknowledge the financial support of the Ministry of Education and Science of the Russian Federation, project no. 11.1957.2017/4.6 (composite compaction processing); RNF (properties investigation), grant no. 16-19-10213.Sánchez Bolinches, A.; Klyatskina, E.; Segovia-López, F.; Zholnin, A.; Stolyarov, VV. (2019). Electroconductivity of Al2O3/graphene nanocomposite processed by SPS technique. IOP Conference Series Materials Science and Engineering. 558:1-4. https://doi.org/10.1088/1757-899X/558/1/012040S14558Markandan, K., Chin, J. K., & Tan, M. T. T. (2016). Recent progress in graphene based ceramic composites: a review. Journal of Materials Research, 32(1), 84-106. doi:10.1557/jmr.2016.390Nieto, A., Bisht, A., Lahiri, D., Zhang, C., & Agarwal, A. (2016). Graphene reinforced metal and ceramic matrix composites: a review. International Materials Reviews, 62(5), 241-302. doi:10.1080/09506608.2016.1219481Miranzo, P., Belmonte, M., & Osendi, M. I. (2017). From bulk to cellular structures: A review on ceramic/graphene filler composites. Journal of the European Ceramic Society, 37(12), 3649-3672. doi:10.1016/j.jeurceramsoc.2017.03.016Tubío, C. R., Rama, A., Gómez, M., del Río, F., Guitián, F., & Gil, A. (2018). 3D-printed graphene-Al2O3 composites with complex mesoscale architecture. Ceramics International, 44(5), 5760-5767. doi:10.1016/j.ceramint.2017.12.234Kostecki, M., Grybczuk, M., Klimczyk, P., Cygan, T., Woźniak, J., Wejrzanowski, T., … Olszyna, A. (2016). Structural and mechanical aspects of multilayer graphene addition in alumina matrix composites–validation of computer simulation model. Journal of the European Ceramic Society, 36(16), 4171-4179. doi:10.1016/j.jeurceramsoc.2016.06.034Malek, O., González-Julián, J., Vleugels, J., Vanderauwera, W., Lauwers, B., & Belmonte, M. (2011). Carbon nanofillers for machining insulating ceramics. Materials Today, 14(10), 496-501. doi:10.1016/s1369-7021(11)70214-0Zholnin, A. G., Klyatskina, E. A., Grigoryev, E. G., Salvador, M. D., Misochenko, A. A., Dobrokhotov, P. L., … Stolyarov, V. V. (2018). Spark-Plasma Sintering of Al2O3–Graphene Nanocomposite. Inorganic Materials: Applied Research, 9(3), 498-503. doi:10.1134/s2075113318030334Almond, D. P., Bowen, C. R., & Rees, D. A. S. (2006). Composite dielectrics and conductors: simulation, characterization and design. Journal of Physics D: Applied Physics, 39(7), 1295-1304. doi:10.1088/0022-3727/39/7/s0

Archivos de Zootecnia. Informe Editorial 2009

The editorial process of Archivos de Zootecnia during 2009 is reported below. A total of 342 manuscripts were received from 24 countries, mainly from Brazil (75.8%). Consequently, the language most frequently used in the manuscripts was Portuguese, followed by Spanish and English. The mean time between submission and publication of a manuscript was 690.7 days. The rejection rate was 53.5%. In 2009, 44 articles, 72 short notes and 9 reviews (total 125) were published by authors from 29 countries. Se analiza el proceso editorial de Archivos de Zootecnia durante 2009. Se recibieron 342 manuscritos procedentes de 24 países, principalmente de Brasil (75,8%). Consecuentemente, el lenguaje más frecuentemente usado fue el portugués, seguido del español y el inglés. El tiempo medio entre recepción y publicación de un manuscrito fue elevado (690,7 dias). La tasa de rechazo fue del 53,5%. En 2009 fueron publicados 44 artículos, 72 notas breves y 9 revisiones (125 trabajos en total) cuyos autores pertenecían a 29 países diferentes

Infographics as a Mnemonic structure: Analysis of the informative and identity components of infographic online compositions in Iberic newspapers

Infographics as a transdisciplinary component that permits to objectify depth that amplifies and potentiates time and space, is the proper structure for the reading characteristics of Net Generation and outputs the dynamic skills of visual intelligence, creating mnemonic frameworks. This article analyses the use of its Informative content, and its appliance to the qualities of Online Information (accurate, timely, complete and concise), its components of Identity (periodicity, animation, stateness, interactivity, image, multimedia and typology) and its Informative components (structure, clarity, content and readability) through revision, over two weeks (2014 and 2015), of the six daily general online newspapers of Iberian Peninsula that, according to the Asociación para la Investigación de Medios de Comunicación and Marktest, have more views: El País, 20minutos, Público, Correio da Manhã, Jornal de Notícias and Diário de Notícias. Is also registered in this analysis, the vision of content producers through a survey of members of the Infographic Society (the only professional association of this particular profession established in the Iberian environment) and the results of the study are contrasted with an in-depth interview with structured questionnaire relating to four global infographic designers working for The Guardian, The Times and National Geographic. Although the results reflect a low Multimediality and Interactivity, the analysis finds that there is a sensory and affective effort Permanence and Narrative in the mnemonic meshing of skills in Journalistic Online Infographics limited by a poor Visibility of the Infographic compound given by the media, either by failure of Production, of Continuity, Informative, of Usability and/or integration

Aromáticas y medicinales en Paravachasca: promoviendo el aprovechamiento sustentable

In Córdoba province, the use and commercialization of native aromatic and medicinal plants (AMP) are widespread practices adopted by the population. This context defines the need for the development of adequate technologies and its transfer to the environment in order to revalue and conserve the resource; the proposed objectives were to promote the use, production and sustainable use of native AMP in Valle de Paravachasca and to train social actors in management practices. In order to address sustainable practices in the use of AMP and their cultivation, the training and learning of students, teachers, producers and policy makers was carried out through journeys, practical workshops in fields and exchange of knowledge. The development of new knowledge was achieved through active participation in the different stages carried out. It is worth highlighting that students and teachers showed great interest in the activities and spaces for intervention on the subject. The participation of family groups in relation to new concerns and the return of practices and knowledge was visualized, allowing progress towards new objectives in pursuit of regional development. The interrelation and participation made it possible to detect new problems for future challenges in university research and outreach.En la provincia de Córdoba el uso y comercialización de plantas aromáticas y medicinales (PAM) nativas son prácticas difundidas y arraigadas en la población. Sin embargo, las prácticas de colecta no se realizan en forma sustentable, generando la degradación de los recursos y consecuentemente la pérdida de ingresos familiares. Este contexto define la necesidad del desarrollo de tecnologías adecuadas y su transferencia al medio para revalorizar y conservar el recurso. Los objetivos propuestos fueron promover el aprovechamiento, producción y uso sustentable de PAM nativas en el Valle de Paravachasca y capacitar a los actores sociales en las prácticas de manejo. Para abordar las prácticas sustentables en el aprovechamiento de las PAM y su cultivo se consideró la capacitación y aprendizaje de alumnos, docentes, productores y decisores políticos a través de jornadas, talleres de prácticas a campo e intercambio de saberes. La incorporación de nuevos conocimientos se logró mediante la participación activa en las instancias desarrolladas. Se destacó el gran interés de alumnos y docentes en las actividades y espacios de acción sobre la temática. Se visualizó la participación de los grupos familiares en nuevas inquietudes y el retorno de prácticas y conocimientos, permitiendo avanzar hacia nuevos objetivos en pos de un desarrollo regional. La interrelación y participación permitieron detectar nuevas problemáticas para futuros desafíos en la investigación y extensión universitaria