The formation and hydrogen sorption properties of the NaMgH₃ perovskite/type hydride have been examined. Samples were mechanically ball milled under argon for 2, 5 and 15 h; then characterized by X-ray diffraction (XRD), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA) coupled with a mass spectrometer (MS). Lattice parameters and cell volume of the main NaMgH₃ phase increase as a function of milling. Dehydrogenation proceeded in two-step reactions for the NaMgH₃. The maximum amount of released hydrogen was achieved for the 2 h milled NaMgH₃ hydride accounting for 5.8 wt.% of H₂ from 287 °C to 408 °C. Decomposed NaMgH₃ samples were reversibly hydrogenated under 10 bar H₂ at ~200 °C.

The transcription and translation of Deoxyribonucleic Acid (DNA) involve the processing of genetic information (adenine, thymine, guanine, and cytosine), which can be interpreted as the processing of discrete signals. Additionally, the proper transmission and reception of proteins can be understood with typical theories of digital communication systems. Thus, concepts as routing, error control, and Shannon’s theorem may be the equivalence to determine a target organ, the maturation in the primary transcript molecule of Ribonucleic Acid (RNA) messenger, and the regulation of gene expression (that defines the development of multicellular organisms), respectively. Due to the high performance of transmitting information shown by typical digital communication systems, modeling the analogies between biological communication systems and digital communication systems as mentioned above may allow overcoming the challenges that biological systems face and having more efficient treatment of lethal diseases such as cancer.

Information and communication technologies (ICTs)affect the different processes universities develop, these institutions are fundamental to knowledge production and the development of society. ICTs are dynamic and universities face a complex challenge in order to transform into digital organizations. The objective of this case study is to analyze the inclusion of ICTs-based indicators in the quality evaluation processes of higher education institutions and to propose ICTs aspects to support the digital transformation of Ecuadorian universities. There were analyzed eight quality evaluation models applied in Ecuador in the last five years for higher education institutions and career accreditation. There was determined that a native impulse for digital transformation has been present in the quality models applied, digital transformation drivers were defined in order to offer a guide to include digital aspects in each quality criteria that impulse digital transformation at Ecuadorian universities.

The performance-based seismic design pretends to take care of the lives of the occupants and reduce the cost of damage caused by earthquakes. Several ways of estimating damage and economic losses have been developed, but most of them lack objectivity and have great dispersion in the results. In the last decade, the advancement of technology has allowed the appearance of new methodologies, such as the one developed by the Pacific Earthquake Engineering Research Center (PEER methodology). However, the information regarding application and scope is scarce. In the present investigation, the economic seismic performance for a steel building was determined by applying the PEER methodology with different levels of seismic intensity. A multi-family residential model of special moment frames (SMF) was used, and the structure was designed by means of modal analysis. Spectral, incremental dynamic non-linear analysis was performed where the structural response was determined, with the help of the PACT software. The seismic performance, expressed as the repair costs, repair times, deaths, and injuries, was defined. The results obtained indicate that buildings designed with traditional structural standards can be demolished after the action of an earthquake because the repair costs exceed 40% of the replacement cost. Rare and very rare seismic events can cause the total suspension of the service and a considerable number of deaths and injuries.

The memristor is the fourth fundamental element in the electronic circuit field, whose memory and resistance properties make it unique. Although there are no electronic solutions based on the memristor, interest in application development has increased significantly. Nevertheless, there are only numerical Matlab or Spice models that can be used for simulating memristor systems, and designing is limited to using memristor emulators only. A memristor emulator is an electronic circuit that mimics a memristor. In this way, a research approach is to build discrete-component emulators of memristors for its study without using the actual models. In this work, two reconfigurable hardware architectures have been proposed for use in the prototyping of a non-linearity memristor emulator: the FPAA (Field Programing Analog Arrays) and the FPGA (Field Programming Gate Array). The easy programming and reprogramming of the first architecture and the performance, high area density, and parallelism of the second one allow the implementation of this type of system. In addition, a detailed comparison is shown to underline the main differences between the two approaches. These platforms could be used in more complex analog and/or digital systems, such as neural networks, CNN, digital circuits, etc.

La presente investigación aborda el desarrollo y la evaluación del Tablero Ocupacional Digital (TOD), un recurso tecnológico diseñado para potenciar la autonomía y las actividades de la vida diaria en la población estudiantil. La evaluación de la eficacia se realizó mediante la adaptación de la Medida de Independencia Funcional (FIM), cuantificando el desempeño en habilidades motoras y cognitivas. La implementación integró una fase piloto técnica seguida de una intervención educativa de 16 semanas, acompañada de formación docente para asegurar la transferencia tecnológica. Los resultados cuantitativos indicaron una mejora del 25 % en la coordinación visomotora y una reducción del tiempo de ejecución de tareas en un 50 %, con una significancia estadística de (p<0.05). Estos hallazgos validan la pertinencia del TOD frente a métodos analógicos, destacando su capacidad de retroalimentación inmediata.