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34.626  Articles
1 of 3.464 pages  |  10  records  |  more records»
Knowledge about the permeability of surrounding rock (salt rock and mudstone interlayer) is an important topic, which acts as a key parameter to characterize the tightness of gas storage. The goal of experiments that test the permeability of gas storage f... see more

Una vía para el proceso de comprensión de la información científica / A way for the process of understanding scientific information Una vía para el proceso de comprensión de la información científica / A way for the process of understanding scientific informationObjetivo: evaluar la efectividad de los ejercicios para el proceso de comprensión de la información científica.Materiales y métodos: se emplearon métodos del nivel teórico entre los que se encuentran. Analítico-sintético, histórico-lógico, sistémico-estructural, modelación y del nivel empírico como el estudio documental, la observación y la prueba.Resultados: la prueba de entrada demostró que en los grupos donde se aplicó el experimento los estudiantes tienen un bajo nivel de habilidades en la comprensión de la información científica y los resultados de la prueba de salida demostraron la efectividad del sistema de ejercicios aplicado porque se produjo un salto cualitativo en cuanto al dominio de las habilidades para la comprensión científica.Conclusiones: el estudiante del curso Preparatorio presenta dificultades en la comprensión del texto científico y la aplicación del sistema de ejercicios contribuyó a la adquisición de habilidades en el trabajo con esta tipología textual.ABSTRACTObjetive:to evaluate the effectiveness of the exercises for the process of understanding scientific information.Materials and methods: Methods of the theoretical level were used among those found. Analytical-synthetic, historical-logical, systemic-structural, modeling and empirical level such as documentary study, observation and testing.Results: the entrance test showed that in the groups where the experiment was applied the students have a lowlevel of skills in the understanding of the scientific information and the results of the exit test demonstrated the effectiveness of the applied exercise system because it was produced a qualitative leap in terms of mastering the skills for scientific understanding.Conclusions: the student of the preparatory course presents difficulties in the understanding of the scientific text and the application of the exercise system contributed to the acquisition of skills in the work with this textual typology.Keywords: understanding; Scientific information.

Materiales y métodos: se emplearon métodos del nivel teórico entre los que se encuentran. Analítico-sintético, histórico-lógico, sistémico-estructural, modelación y del nivel empírico como el estudio documental, la observación y la prueba.Resultados: la p... see more

Tereblya salt structure is under consideration at different levels as one of geological objects for Transcarpathian salt industry recovery after emergency reduction of activities of the single salt-producing enterprise of the region in Solotvyno. Despite ... see more

According to the extensive studies in the field of high-energy cathode materials for lithium-ion batteries (LIBs), Mn-based oxyfluorides Li1.2Mn0.6+0.5yNb0.2–0.5yO2–yFy with Li-excess and cation-disordered rock-salt structure capable of reversible cationi... see more

In this study, Rockwell is used in material hardness examination. It caused by those characteristics. Those are, fast, away from human error, from this examination it can be known and compared the characteristics of nickel porosity before sentrifugal cast... see more

Aim: To evaluate the influence of varying the water/powder ratio on the compressive strength of type IV mineral and synthetic casts. Methods: Four commercial brands of type IV mineral and synthetic casts were evaluated: Durone, Herostone, Fuji Rock, and E... see more

The presence of phosphate in wastewaters can cause eutrophication of surface  water bodies leading  to algal-blooming  in the aquatic environment and degradation  of  water  quality.  Phosphate  removal  from&n... see more

Rocket motors are designed, developed, and evaluated for performance, and after repeated tests, are qualified for use in a spacecraft or missile system. Comprehensive instrumentation measurement plan is made to record physical parameters during evaluation... see more

This paper presents the design of a hybrid rocket motor and the experiments carried out for investigation of hybrid combustion and regression rates for a combination of liquid oxidiser red fuming nitric acid with solid fuel hydroxyl-terminated Polybutadie... see more

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