EVALUACION IN VITRO de una nueva técnica para la toma de impresiones • definitivas en prótesis fija

La toma de impresiones definitivas en prótesis fija, es uno de los procedimientos rutinarios en la práctica odontológica que requiere mayor destreza y habilidad por parte del odontólogo; los requisitos como fidelidad, precisión y exactitud de las impresiones definitivas en dientes preparados con márgenes supragingivales o intracreviculares, son esenciales y se deben lograr por medio de técnicas que no sean incómodas para el paciente, que no lastimen los tejidos periodontales y que ahorren tiempo y dinero

The Male Warrior Hypothesis: Testosterone-related Cooperation and Aggression in the Context of Intergroup Conflict

Indexación ScopusThe Male Warrior Hypothesis (MWH) establishes that men’s psychology has been shaped by inter-group competition to acquire and protect reproductive resources. In this context, sex-specific selective pressures would have favored cooperation with the members of one’s group in combination with hostility towards outsiders. We investigate the role of developmental testosterone, as measured indirectly through static markers of prenatal testosterone (2D:4D digit ratio) and pubertal testosterone (body musculature and facial masculinity), on both cooperation and aggressive behavior in the context of intergroup conflict among men. Supporting the MWH, our results show that the intergroup conflict scenario promotes cooperation within group members and aggression toward outgroup members. Regarding the hormonal underpinnings of this phenomenon, we find that body musculature is positively associated with aggression and cooperation, but only for cooperation when context (inter-group competition) is taken into account. Finally, we did not find evidence that the formidability of the group affected individual rates of aggression or cooperation, controlling for individual characteristics. © 2020, The Author(s).https://www-nature-com.recursosbiblioteca.unab.cl/articles/s41598-019-57259-

Exploring Health Science Students’ Notions on Organ Donation and Transplantation: A Multicenter Study

The knowledge acquired during university education about organ donation and transplantation (ODT) decisively influences the information future health professionals transmit. This is important in ODT where the participation of the general public is essential to obtain organs. Objective: To determine notions of Spanish medicine and nursing students on ODT and its relationship with attitude toward ODT. Methods and Design: and design. We conducted a sociologic, multicenter, and observational study. The population for our study consisted of medical and nursing students in Spanish universities. Our database was the Collaborative International Donor Project, stratified by geographic area and academic course. A validated questionnaire (PCID-DTO-RIOS) was self-administered and completed anonymously. Our sample consisted of 9598 medical and 10, 566 nursing students (99% confidence interval; precision of ±1%), stratified by geographic area and year of study. Results: The completion rate for our study was 90%. Only 20% (n=3640) of students thought their notions on ODT were good; 41% (n=7531) thought their notions were normal; 36% (n=6550) thought their notions were scarce. Comparing groups, there were differences between those who believed that their notions on ODT were good (44% nursing vs 56% medical students; P < .000), and those who believed it scarce (54% nursing vs 46% medical students; P < .000). Notions on ODT were related with attitude toward the donation of one''s own organs: those who considered their notions were good were more in favor then those who considered it scarce (88% vs 72%; P < .000). Conclusion: Only 20% of Spanish medical and nursing students thought their notions on ODT were good. Having good knowledge is related to a favorable attitude towards ODT. Receiving specific information on the subject could improve their knowledge about ODT during their training

Observation of inverse Compton emission from a long γ-ray burst.

Long-duration γ-ray bursts (GRBs) originate from ultra-relativistic jets launched from the collapsing cores of dying massive stars. They are characterized by an initial phase of bright and highly variable radiation in the kiloelectronvolt-to-megaelectronvolt band, which is probably produced within the jet and lasts from milliseconds to minutes, known as the prompt emission1,2. Subsequently, the interaction of the jet with the surrounding medium generates shock waves that are responsible for the afterglow emission, which lasts from days to months and occurs over a broad energy range from the radio to the gigaelectronvolt bands1-6. The afterglow emission is generally well explained as synchrotron radiation emitted by electrons accelerated by the external shock7-9. Recently, intense long-lasting emission between 0.2 and 1 teraelectronvolts was observed from GRB 190114C10,11. Here we report multi-frequency observations of GRB 190114C, and study the evolution in time of the GRB emission across 17 orders of magnitude in energy, from 5 × 10-6 to 1012 electronvolts. We find that the broadband spectral energy distribution is double-peaked, with the teraelectronvolt emission constituting a distinct spectral component with power comparable to the synchrotron component. This component is associated with the afterglow and is satisfactorily explained by inverse Compton up-scattering of synchrotron photons by high-energy electrons. We find that the conditions required to account for the observed teraelectronvolt component are typical for GRBs, supporting the possibility that inverse Compton emission is commonly produced in GRBs

Virtualización del Título Propio en Olivicultura y Elaiotecnia. Elaboración de Materiales

Es conocido que España es primer país productor de aceite de oliva del mundo, con un 40 % de la producción mundial y el 50 % de la producción de la Unión Europea, siendo la provincia de Jaén, con el 38,4 % de la producción española, la mayor zona productora del mundo en aceite de oliva. Sin embargo, se trata de un sector en el que la escasa profesionalización es, tal vez, su mayor debilidad.La Universidad de Jaén, consciente del importante papel que ha de jugar como Institución dinamizadora del desarrollo de su entorno, en el que el sector del olivar y del aceite de oliva tiene una enorme importancia, considera que es urgente formar titulados universitarios de grado superior que posean conocimientos integrales y solventes en olivicultura y elaiotecnia de modo que incorporados a las empresas del sector del olivar y el aceite de oliva o creando las suyas propias, lo modernicen y desarrollen, contribuyendo a dotarlo de cultura empresarial y al desarrollo socioeconómico y, por ende, al bienestar de los ciudadanos de la provincia

Implementation of conceive-design-implement-operate in mining engineering education programs

The increasing complexity of mining operations results in increased requirements for the mining engineering education. The demand of broad skills sets is the reason to improve mining engineering education programs in the context of facing also the deep transformation that the industry is facing end the need of a new generation of workforce and engineers with new training profiles, able to manage the changes.In Europe, there were no academic institutes applying CDIO for primary resource related university programs (Exploration, Mining, Mineral Processing, and Metallurgy). Supported by the EIT Raw Materials, a first international education project was developed in 2016 – 2017 to contribute to the implementation of the CDIO methodology in primary resources linked programs. This first project focused on faculty development for an active and experimental learning by teaching the “technical” faculty through CDIO linked courses (entrepreneurship, business, etc.), communicative workshops, inspiration lectures and by involving the “business and entrepreneurial” faculty in exploration, mining, mineral processing and metallurgy related issues and also through curriculum and pilot cases developed together with the industry.In 2018, also with this support, a second project started focusing on the development of innovative labs for education in these specific engineering disciplines of the primary sector of the mineral raw materials value chain. This paper describes the results of the application of this methodology in programs of the Technical University of Madrid, which is one of the partners of this international project taken ahead by different European universities. It also describes how EIT Raw Materials is supporting this kind of initiatives, as it is one of the six Knowledge and Innovation Communities (KICs) initiated by the EIT (European Institute of Innovation and Technology), and funded by the European Commission, that has the mission of contributing to boost competitiveness, growth, and attractiveness of the European raw materials sector via radical innovation and guided entrepreneurship resulting in new education programs

Applied competences for students by using m3learning* devices in Higher Education: Knowledge, skills and attitudes

The purpose of this chapter is to present a case study for evaluating the competences knowledge, skills, and attitudes applied by students in Higher Education by using m-learning devices in a course taught in an online distance education. The research question was. Which skills do the students need to learn through m-learning devices? Two variables used in this study were m-learning and learning technology skills. The results shows that m-learning becomes an extension, addition and/or evolution of online studying and that the student requires a set of basic knowledge and skills to handle cell phones and iPods as learning tools. Students also develop skills in computing, communication, productivity, relationships, leadership, self-study while being involved in a study mode such as mobile learning. Students also require competences such as self-management, evaluation and selection of information, creativity, communication and collaborative work

EVALUACION IN VITRO de una nueva técnica para la toma de impresiones • definitivas en prótesis fija

La toma de impresiones definitivas en prótesis fija, es uno de los procedimientos rutinarios en la práctica odontológica que requiere mayor destreza y habilidad por parte del odontólogo; los requisitos como fidelidad, precisión y exactitud de las impresiones definitivas en dientes preparados con márgenes supragingivales o intracreviculares, son esenciales y se deben lograr por medio de técnicas que no sean incómodas para el paciente, que no lastimen los tejidos periodontales y que ahorren tiempo y dinero