ABSTRACT The literature on transfer, mobilization, and appropriation of knowledge produced in universities and public research centers yielded results allowing a better understanding of benefits, obstacles, and determining channels of such processes. Emphasis has been on differences between agents, researchers, and institutions, instead of trying to understand epistemic practices that affect Knowledge Mobilization (KMb). Our key question is: what type of obstacles are presented in KMb generated by Mexican researchers at the National Health System of Mexico when focused on Type 2 Diabetes Mellitus (T2DM)? We analyzed obstacles in the mobilization of knowledge generated by Mexican T2DM researchers focused at the National Health System of Mexico. We critically discuss the KMb literature, evaluate its qualitative methodology, and offer a case study with researchers in T2DM from the National Health System of Mexico. Finally, we discuss the findings and approaches from the theory in a series of recommendations to address the problem.

Coral mortality triggers the loss of carbonates fixed within coral skeletons, compromising the reef matrix. Here, we estimate rates of carbonate loss in newly deceased colonies of four Caribbean reef-building corals. We use samples from living and recently deceased colonies following a stony coral tissue loss disease (SCTLD) outbreak. Optical densitometry and porosity analyses reveal a loss of up to 40% of the calcium carbonate (CaCO3) content in dead colonies. The metabolic activity of the endolithic organisms colonizing the dead skeletons is likely partially responsible for the observed dissolution. To test for the consequences of mass mortality events over larger spatial scales, we integrate our estimates of carbonate loss with field data of the composition and size structure of coral communities. The dissolution rate depends on the relative abundance of coral species and the structural properties of their skeletons, yet we estimate an average reduction of 1.33 kg CaCO3 m−2, nearly 7% of the total amount of CaCO3 sequestered in the entire system. Our findings highlight the importance of including biological and chemical processes of CaCO3 dissolution in reef carbonate budgets, particularly as the impacts of global warming, ocean acidification, and disease likely enhance dissolution processes.

In the present work, the susceptibility to hydrogen embrittlement under hydrogen pressure was evaluated for an experimental X-120 microalloyed steel with four quenching treatments to determine the effect of hydrogen on the hardness and toughness behaviour, for its use in gas and oil transport. The steel was reheated at 820° and 900 °C and then quenched in four different cooling media. The microstructure obtained by quenching in spray water showed a martensite-bainite type microstructure, and the pressurized air condition showed a microstructure composed of bainite and acicular ferrite. In contrast, a microstructure composed mainly of finer lath martensite-bainite and acicular ferrite was obtained in the water-oil emulsion. In the oil quenching condition, a microstructure consisting of banded martensite, polygonal ferrite, and acicular ferrite was obtained. Susceptibility to hydrogen embrittlement was determined by hydrogen gas pressure testing at 1, 4, and 7 MPa. The results showed a clear trend where the steel decreases its impact toughness due to the effect of hydrogen pressure, with a maximum decrease of 29%, 24%, and 39%, respectively, for each hydrogen pressure condition (1, 4, 7 MPa).

El objetivo de este artículo es mostrar la participación femenina en las elecciones de 2021 en México, tanto la presencia cuantitativa en los diversos niveles de gobierno resultado de la convocatoria a este proceso, como otros aspectos cualitativos. Para ello se hizo una revisión de datos e información histórica, reformas legislativas y acciones afirmativas como la puesta en práctica de la paridad de género. Este texto se realizó a través de una revisión a fuentes oficiales y se le dio seguimiento al proceso electoral, a partir de datos, normativas y resultados. Los hallazgos obtenidos resaltan el incremento progresivo de las mujeres, ya que hay paridad en casi todos los cargos, destacando el legislativo federal y los congresos locales. Otro punto a subrayar es el elevado número de gobernadoras surgidas de esta convocatoria que, en contraste con el número de mujeres que ha ocupado ese cargo a lo largo de la historia del país, es mayor. Finalmente, señalamos la persistencia de la violencia política hacia las mujeres, pese a los esfuerzos institucionales en dicho sentido.

El objetivo de este texto es describir, explicar y reflexionar sobre la sociedad actual en medio de la pandemia, con relación al cansancio o los cansancios. En el sentido de los síntomas o trastornos de salud mental cuyo principal ingrediente o uno de ellos es el cansancio. Ello se realiza a través de definiciones especializadas, así como, de lo que dice sentir la gente al respecto. Al parecer nos encontramos en una sociedad donde el cansancio impera, no solo el producido por el ritmo laboral o social, el consumismo y la productividad, el rendimiento y autoexigencia de algunos sectores, sino que la pandemia y sobre todo el confinamiento, el trabajo en casa y la educación a distancia han incrementado el cansancio y el darnos cuenta de ello. Así que, este texto es también una invitación a reflexionar sobre el tema.

This text objective is to describe, explain and reflect the current society in the midst of the pandemic, in relation to tiredness or fatigue. In the sense of mental health symptoms or disorders whose main ingredient or one of them is fatigue. This is done through specialized definitions, as well as what people say they feel about it. Apparently we are in a society where fatigue reigns, not only that produced by the work or social rhythm, consumerism and productivity, performance and self-demand of some sectors, but also the pandemic and especially confinement, homeoffice and distance education have increased fatigue and the realization of it. So, this text is also an invitation to reflect on the subject.

El transporte público proporciona servicios esenciales a la sociedad. Sin embargo, también es parte de diversos desafíos en materia de sostenibilidad, particularmente, los relacionados con la calidad del aire y la seguridad energética. Por lo anterior, este artículo tiene como objetivo analizar la viabilidad del trolebús como un sistema de transporte público sostenible. El método utilizado es el análisis comparado entre sistemas de transporte. Para lograr dicho objetivo, en primer lugar, se presenta un breve panorama de los problemas de sostenibilidad del transporte urbano. Posteriormente, se ofrece un recuento de la trayectoria del trolebús. Al respecto, se sostiene que el trolebús es una opción sostenible de transporte público. Finalmente, se concluye que la experiencia observada en otras ciudades con el uso del trolebús brinda posibles ideas para contribuir al desarrollo sostenible de la Ciudad de México.

This research work aimed to determine the hydrogen gas pressure effect on the mechanical properties of an experimental X-120 microalloyed steel, subjected to heat treatments and quenched in different mediums. The steel in its as-received condition was reheated at 900 °C and quenched in spray water (900QSW), pressurized air (900QPA), and emulsion of water-oil medium (900QWO) which produces complex microstructures formed by martensite–bainite–acicular ferrite; otherwise, reheated at 820 °C and quenched in oil media (820QO) which produces a banded martensite-polygonal ferrite microstructure. To determine the hydrogen embrittlement susceptibility, in-situ tension tests were developed at 1, 4, and 7 MPa of hydrogen gas pressure. The results showed that as hydrogen gas pressure increases, the mechanical properties reduce in all quenched conditions, being the most susceptible condition the 820QO sample which presented the higher embrittlement index; on the contrary, the less susceptible condition was the 900QPA sample.