Experts’ Selection for Neutrosophic Delphi Method. A Case Study of Hotel Activity

This investigation aims to model experts’ selection for neutrosophic Delphi method. The phase of selecting experts is essential to obtain adequate results in Delphi method, thus this phase deserves a major attention. The proposed method considers the complexity of the subject, according to experts’ criteria to fix the number of experts necessary to apply the neutrosophic Delphi method. Single-valued triangular neutrosophic numbers are used to measure experts’ self-evaluations and the weights of expertise criteria. Neutrosophy allows us to include indeterminacy, which is typical in any decision-making problem, as well as the calculation based on linguistic terms. Hotel activity serves as a case study for illustrating the applicability of the method in a real life situation

Nuevas Universidades Públicas en México, ¿Discurso o Realidad?

El siglo XXI presenta un panorama en el que la globalización conforma un papel importante en el desenvolvimiento de la sociedad, la económica, cultura, política, ciencia, educación, etc. Los Gobiernos enfrentan una serie de cambios complejos a los que; a través de las políticas públicas, gubernamentales, planes y programas de acción, se tiene que dar respuesta a los problemas de la nueva era. Tanto en México como en el contexto internacional, la educación superior es considerada esencial para el desarrollo de las Naciones, influye en el progreso de las personas promoviendo la movilidad social, enriquece la cultura y los valores en especial el trabajo en sociedad, permite el avance e innovación de la tecnología, hace crecer la economía y es de gran utilidad para ampliar el grado de oportunidades que la población tiene con respecto a su posición laboral. La presente investigación aborda un tema perteneciente a la educación superior y su impacto en México, analiza la última iniciativa de Gobierno para atender el acceso a la educación superior pública; el programa Universidades para el Bienestar Benito Juárez García (UBBJG) tiene sus orígenes como una iniciativa impulsada por el partido político Movimiento de Regeneración Nacional (MORENA), cuya finalidad es ofrecer este nivel educativo a los jóvenes y adultos que no han tenido oportunidad de ingresar a este grado académico. El objetivo inicial de este programa fue la creación de cien nuevas universidades públicas en el país, esto generó bastante especulación en la población, porque en sus inicios este programa formó parte de una estrategia discursiva de campaña, que poco tiempo después de la llegada de Andrés Manuel López Obrador a la presidencia, se tomaría acción en un plano operativo más serio

Classification of filiform Lie algebras up to dimension 7 over finite fields

This paper tries to develop a recent research which consists in using Discrete Mathematics as a tool in the study of the problem of the classification of Lie algebras in general, dealing in this case with filiform Lie algebras up to dimension 7 over finite fields. The idea lies in the representation of each Lie algebra by a certain type of graphs. Then, some properties on Graph Theory make easier to classify the algebras. As main results, we find out that there exist, up to isomorphism, six, five and five 6-dimensional filiform Lie algebras and fifteen, eleven and fifteen 7-dimensional ones, respectively, over Z/pZ, for p = 2, 3, 5. In any case, the main interest of the paper is not the computations itself but both to provide new strategies to find out properties of Lie algebras and to exemplify a suitable technique to be used in classifications for larger dimensions

Computation of isotopisms of algebras over finite fields by means of graph invariants

In this paper we define a pair of faithful functors that map isomorphic and isotopic finite-dimensional algebras over finite fields to isomorphic graphs. These functors reduce the cost of computation that is usually required to determine whether two algebras are isomorphic. In order to illustrate their efficiency, we determine explicitly the classification of two- and threedimensional partial quasigroup rings

The imprints of bars on the vertical stellar population gradients of galactic bulges

This is the second paper of a series aimed to study the stellar kinematics and population properties of bulges in highly-inclined barred galaxies. In this work, we carry out a detailed analysis of the stellar age, metallicity and [Mg/Fe] of 28 highly-inclined ($i > 65^{o}$) disc galaxies, from S0 to S(B)c, observed with the SAURON integral-field spectrograph. The sample is divided into two clean samples of barred and unbarred galaxies, on the basis of the correlation between the stellar velocity and h$_3$ profiles, as well as the level of cylindrical rotation within the bulge region. We find that while the mean stellar age, metallicity and [Mg/Fe] in the bulges of barred and unbarred galaxies are not statistically distinct, the [Mg/Fe] gradients along the minor axis (away from the disc) of barred galaxies are significantly different than those without bars. For barred galaxies, stars that are vertically further away from the midplane are in general more [Mg/Fe]--enhanced and thus the vertical gradients in [Mg/Fe] for barred galaxies are mostly positive, while for unbarred bulges the [Mg/Fe] profiles are typically negative or flat. This result, together with the old populations observed in the barred sample, indicates that bars are long-lasting structures, and therefore are not easily destroyed. The marked [Mg/Fe] differences with the bulges of unbarred galaxies indicate that different formation/evolution scenarios are required to explain their build-up, and emphasizes the role of bars in redistributing stellar material in the bulge dominated regions.Comment: 22 pages, 7 main body figures +8 appendix figures, 2 tables. Accepted by MNRA

Counselor-Perceived Teacher Actions Needed to Carry out Educational and Vocational Guidance in Secondary Schools in Spain

After analyzing the scientific literature referring to guiding actions developed in secondary education, there is an appreciable lack of research on process efficiency performed by teachers. This study explores the practice of tutoring, which in Spain is coordinated by counselors but the responsibility of teachers. An ad hoc semistructured questionnaire was designed, validated and applied within the framework of a collaboration agreement between professional institutions of counselors and researchers. The questionnaire was answered by 102 counselors who are heads of guidance departments because the insight of counseling experts was desired. The quantitative and qualitative data analyses indicated correlations between the profile of the counselors and the performance of tutoring, described the content and predominant intervention models and identified needs for improvement. A much more intensive and direct intervention by counselors is necessary in a system in which teachers are not trained enough and time dedicated to tutorial action is deficient. Notably, counselors coordinate and supervise tutoring, but they feel overwhelmed by the lack of concrete norms and their workload

Key soft skills in the orientation process and level of employability

We understand soft skills as an integrated set of knowledge, skills and values that facilitate the effective, affective and efficient development of a skill or activity. The objective of this study was to identify the soft skills that are most often used in the orientation process and those that improve employability, according to Spanish counselors. A qualitative methodology was used. The participants (n = 57) were orientation professionals. A total of 273 interviews were conducted over five years. The results and conclusions show that communication and decision-making are the most important competencies in the orientation process and at the level of employability, followed by intrapersonal skills, skills in interpersonal relationships, teamwork, problem solving, adaptation to new situations, creativity and leadership

Further Details on Predicting IRT Difficulty

This supplementary material serves as technical appendix of the paper When AI Difficulty is Easy: The Explanatory Power of Predicting IRT Difficulty (Martínez-Plumed et al. 2022), published in The Thirty-Sixth AAAI Conference on Artificial Intelligence (AAAI-22). The following sections give detailed information about 1) data gathering for benchmarks; 2) IRT properties and methodology followed; 3) learning models configuration and hyperparameter setting; 4) differences between difficulty prediction and class prediction; 5) the deployment and results of alternative approaches for difficulty estimation; 6) specifics and results using a generic difficulty metric in different applications and 7) extended IRT applications.Martínez Plumed, F.; Castellano Falcón, D.; Monserrat Aranda, C.; Hernández Orallo, J. (2022). Further Details on Predicting IRT Difficulty. http://hdl.handle.net/10251/18133