119 research outputs found
Validation of Student Peer Assessment of Effective Oral Communication in Engineering Degrees
© 2018 IEEE. Personal use of this material is permitted. Permissíon from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertisíng or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.[EN] Peer assessment is a form of collaborative learning in which students evaluate learning products prepared by other students. We present the results of an analysis of the assessment of oral presentations by students. A group of students solves a problem, writes a document with the solution, and makes an oral presentation in class to other students. Another group assesses the written document and oral presentation. To help students perform the assessments, two rubrics are provided along with other guidance documents that help in writing scientific documents and performing oral presentations. The rubric evaluates five factors of oral communication. The results of the student evaluations are compared with the simultaneous evaluations produced by two lecturers. When making a comparison of the global assessment between lecturers and students, we find significant differences. However, when the factor "use of auxiliary resources" is removed, these differences disappear as the factor introduces a difficult to justify dispersion. In addition, the assessment performed by students with and without the help of a rubric is compared and no significant differences are found.Meseguer Dueñas, JM.; Vidaurre, A.; Molina Mateo, J.; Riera Guasp, J.; Martínez Sala, RM. (2018). Validation of Student Peer Assessment of Effective Oral Communication in Engineering Degrees. IEEE-RITA: Latin-American Learning Technologies Journal. 13(1):11-16. https://doi.org/10.1109/RITA.2018.2801897S111613
Validation of student peer assessment in effective oral communication in engineering degrees
[EN] Peer assessment is a form of collaborative learning
in which the students evaluate learning products of other
students. In this paper we present the results of the analysis of
the assessment between students of oral presentations. A group
of students solves a problem, writes a document with the resolution
and makes an oral presentation in class for the rest of
the students. Another group assesses both, the written document
and the oral presentation. To help students to do the
assessments two rubrics are provided along with other guidance
documents which help in writing scientific documents and
performing oral presentations. Regarding the oral communication,
the rubric evaluates 5 factors. The result of the students¿
evaluation is compared with the simultaneous evaluation of two
professors. When making a comparison of the global assessment
between professors and students we find significant differences.
However, when the factor ¿use of auxiliary resources¿
is removed these differences disappear, since that
factor introduces dispersion difficult to be justified. In addition,
the assessment performed by students with and without
the help of a rubric is compared. In this case we do not find
significant differences.Los autores desean agradecer al Instituto de Ciencias de la
Educación de la Universitat Politècnica de València (España) el apoyo al Grupo de Innovación Docente e-MACAFI y el apoyo financiero a través del proyecto PIME/2014/A025Meseguer Dueñas, JM.; Vidaurre, A.; Molina Mateo, J.; Riera Guasp, J.; Martínez Sala, RM. (2017). Validación de la Evaluación entre Compañeros en la Comunicación Oral Efectiva en los Estudios de Ingeniería. VAEP-RITA. 5(2):70-75. http://hdl.handle.net/10251/153372S70755
Flujo magnético y fuerza electromotriz inducida en una espira
En este artículo docente se explican los fundamentos para determinar la fuerza electromotriz y la corriente inducida en una espira sometida a flujo magnético variable en el tiempo. Se aplican las Leyes de Faraday y de Lenz. Para facilitar la comprensión, se aplica a la determinación de un ejemplo práctico sencillo. Para finalizar, se propone otro caso similar al explicado para consolidar lo aprendido.Gasque Albalate, MC.; Martínez Sala, RM.; Tarrazó Serrano, D.; Rubio Michavila, C. (2022). Flujo magnético y fuerza electromotriz inducida en una espira. Universitat Politècnica de València. http://hdl.handle.net/10251/18388
Aplicación de la Ley de Ampère para la determinación del campo magnético creado por corrientes filiformes
En este artículo docente se explican los fundamentos y se dan las claves para determinar, aplicando la Ley de Ampère, el campo magnético que crea una corriente rectilínea estacionaria. Paralelamente a la explicación, se resuelve un caso práctico sencillo. Por último se propone particularizar los resultados a un punto concreto, y además se plantea otro caso similar al explicado para consolidar lo aprendido.Gasque Albalate, MC.; Martínez Sala, RM.; Tarrazó Serrano, D.; Rubio Michavila, C. (2022). Aplicación de la Ley de Ampère para la determinación del campo magnético creado por corrientes filiformes. http://hdl.handle.net/10251/182399DE
Application of ground-penetrating radar technique to evaluate the waterfront location in hardened concrete
The long-term performance of concrete structures is directly tied to two factors: concrete durability and strength. When assessing the durability of concrete structures, the study of the water penetration is paramount, because almost all reactions like corrosion, alkali-silica, sulfate, etc., which produce their deterioration, require the presence of water. Ground-penetrating radar (GPR) has shown to be very sensitive to water variations. On this basis, the objective of this experimental study is, firstly, to analyze the correlation between the water penetration depth in concrete samples and the GPR wave parameters. To do this, the samples were immersed into water for different time intervals and the wave parameters were obtained from signals registered when the antenna was placed on the immersed surface of the samples. Secondly, a procedure has been developed to be able to determine, from those signals, the reliability in the detection and location of waterfront depths. The results have revealed that GPR may have an enormous potential in this field, because excellent agreements were found between the correlated variables. In addition, when comparing the water-front depths calculated from GPR measurements and those visually registered after breaking the samples, we observed that they totally agreed when the waterfront was more than 4 cm depth.The authors are grateful to COST - European Cooperation in Science and Technology (www.cost.eu) for funding the Action TU1208 "Civil engineering applications of Ground Penetrating Radar" (www.GPRadar.eu). The authors also thank the Laboratorio de Materiales de Construcion of the Escuela Tecnica Superior de Ingenieria de la Edificacion de la Universitat Politecnica de Valencia technical team for the valuable collaboration.Rodríguez Abad, I.; Klysz, G.; Martínez Sala, RM.; Balayssac, JP.; Mené Aparicio, J. (2016). Application of ground-penetrating radar technique to evaluate the waterfront location in hardened concrete. Geoscientific Instrumentation, Methods and Data Systems. 5(2):567-574. doi:10.5194/gi-5-567-2016S56757452Klysz, G. and Balayssac, J. P.: Determination of volumetric water content of concrete using ground-penetrating radar, Cement Concrete Res., 37, 164–117, https://doi.org/10.1016/j.cemconres.2007.04.010, 2007.Klysz, G., Balayssac, J. P., and Ferrières, X.: Evaluation of dielectric properties of concrete by a numerical FDTD model of a GPR coupled antenna-Parametric study, NDT&E Int., 41, 621–631, https://doi.org/10.1016/j.ndteint.2008.03.011, 2008.Lai, W. L., Kou, S. C., Tsang, W. F., and Poon, C. S.: Characterization of concrete properties from dielectric properties using ground penetrating radar, Cement Concrete Res., 39, 687–695, https://doi.org/10.1016/j.cemconres.2009.05.004, 2009.Laurens, S., Balayssac, J. P., Rhazi, J., Klysz, G., and Arliguie, G.: Non-destructive evaluation of concrete moisture by GPR: experimental study and direct modelling, Mater. Struct., 38, 827–832, 2005.Martínez-Sala, R., Rodríguez-Abad, I., and Del Val, I.: Effect of penetration of water under pressure in hardened concrete on GPR signals, Proceedings of the International Workshop on Advanced Ground Penetrating Radar (IWAGPR 2013), Nantes, France, 237–242, 2013.Martínez-Sala, R., Rodríguez-Abad, I., Mené-Aparicio, J., and Fernández Castilla, A.: Study of the waterfront advance in hardened concrete by means of energy level increment analysis, Proceedings of the 8th International Workshop on Advanced Ground Penetrating Radar (IWAGPR), Firenze, Italy, https://doi.org/10.1109/IWAGPR.2015.7292695, 2015.Otieno, M. B., Alexander, M. G., and Beushausen, H. D.: Corrosion in cracked and uncracked concrete – influence of crack width, concrete quality and crack reopening, Mag. Concrete Res., 62, 393–404, 2010.Pérez Gracia, V.: Radar del subsuelo. Evaluación en arqueología y patrimonio histórico-artístico, PhD doctoral thesis, Universitat Politècnica de Catalunya, Spain, 2001.Rodríguez-Abad, I., Martínez-Sala, R., Mené, J., and Klysz, G.: Water penetrability in hardened concrete by GPR, Proceedings of the 15th International Conference on Ground Penetrating Radar, Brussels, Belgium, 862–867, 2014.Rodríguez-Abad, I., Klysz, G., Martínez-Sala, R., Blayssac, J. P., and Mené, J.: Waterfront depth analysis in hardened concrete by means of the nondestructive ground penetrating radar, IEEE J. Sel. Top. Appl., 9, 91–97, 2016a.Rodríguez-Abad, I., Klysz, G., Balayssac, J. P., and Pajewski, L.: Assessment of waterfront location in hardened concrete by GPR within COST Action TU1208, European Geosciences Union (EGU) General Assembly 2016, Vienna, Austria, EGU2016-18427, 2016b.Sbartaï, Z. M., Laurens, S., Balayssac, J. P., Ballivy, G., and Arliguie, G.: Effect of concrete moisture on radar signal amplitude, ACI Mater. J., 103, 419–426, 2006.Senin, S. F. and Hamis, R.: Ground penetrating radar wave attenuation models for estimation of moisture and chloride content in concrete slab, Constr. Build. Mater., 106, 659–669, https://doi.org/10.1016/j.conbuildmat.2015.12.156, 2015.Soutsos, M. N., Bungey, J. H., Miljard, S. G., Shaw, M. R., and Patterson, A.: Dielectric properties of concrete and their influence on radar testing, NDT&E Int., 34, 419–425, 2001.Tosti, F. and Slob, E.: Determination, by Using GPR, of the Volumetric Water Content in Structures, Substructures, Foundations and Soil, Civil Engineering Applications of Ground Penetrating Radar, 1, Benedetto, A., Pajewski, L., Springer International Publishing, Switzerland, 163–194, https://doi.org/10.1007/978-3-319-04813-0, 2015.UNE-EN 12390-2:2009/1M:2015, Testing hardened concrete. Part 2: Making and curing specimens for strength test, AEN/CTN83-Hormigón, AENOR, 2015
Data set on the effectiveness of Flip Teaching on engineering students' performance in the physics lab compared to Traditional Methodology
[EN] This paper shows the data of the Flip Teaching and Traditional Methodology on the laboratory practice in two subjects, Physics and Electricity, of a technical degree. The laboratory and final grades of these subjects were shown in four consecutive years. The characteristics of all four years were quite similar, except that the Traditional teaching Methodology (TM) was used in two, while Flip Teaching methodology (FT) was applied in the other two. For further discussion, please refer to the scientific article entitled "Effectiveness of flip teaching on engineering students' performance in the physics lab" [1]. Additional segmentation data in three levels are presented in this data in brief paper.This work was supported by the Universitat Politecnica de Valencia [Project PIME/2018/B25 Convocatoria de Proyectos de Innovacion y Convergencia de la UPV].Gómez-Tejedor, J.; Vidaurre, A.; Tort-Ausina, I.; Molina Mateo, J.; Serrano, M.; Meseguer Dueñas, JM.; Martínez Sala, RM.... (2020). Data set on the effectiveness of Flip Teaching on engineering students' performance in the physics lab compared to Traditional Methodology. Data in Brief. 28:1-7. https://doi.org/10.1016/j.dib.2019.104915S1728Gómez-Tejedor, J. A., Vidaurre, A., Tort-Ausina, I., Molina-Mateo, J., Serrano, M.-A., Meseguer-Dueñas, J. M., … Riera, J. (2020). Effectiveness of flip teaching on engineering students’ performance in the physics lab. Computers & Education, 144, 103708. doi:10.1016/j.compedu.2019.10370
Evaluación entre compañeros de la comunicación oral efectiva
[EN] Peer assessment is a form of collaborative learning where students evaluate
the product of learning of other students. In our case, students perform two
types of evaluation related to effective communication: they evaluate
quantitatively, in teamwork, problems solved by another team, and later they
evaluate qualitatively oral presentations of problem solutions. They have
been given guidelines on how to perform the evaluation. The result has been
compared to the assessment made by teachers. In the qualitative assessment
of the oral presentations, we have not found significant differences between
students and professors. Furthermore, the arguments that support
evaluations are rigorous and show their learning through work done by
peers[ES] La evaluación entre compañeros es una forma de aprendizaje colaborativo en el que los estudiantes valoran el producto de aprendizaje de otros estudiantes. En nuestro caso, efectúan dos tipos de evaluación relacionados con la comunicación efectiva: en equipo evalúan cuantitativamente documentos con la resolución de problemas de otros equipos, y, posteriormente, evalúan cualitativamente las presentaciones orales de los ejercicios. Se les han dado pautas sobre como llevar a cabo la evaluación. El resultado ha sido comparado con la evaluación hecha por los profesores. En la evaluación cualitativa de las presentacions no se ha encontrado diferencias significativas entre la realizada por los alumnos en equipo y la de los profesores. Además, la argumentación que hacen a las valoraciones son rigurosas y muestran su aprendizaje a través del trabajo hecho por los compañeros.Los autores desean agradecer al Instituto de Ciencias de la Educación de la Universitat
Politècnica de València (España) el apoyo al Grupo de Innovación Docente e-MACAFI y el
apoyo financiero a través del proyecto PIME/2014/A025.Messeguer-Dueñas, J.; Vidaurre Garayo, AJ.; Molina Mateo, J.; Riera Guasp, J.; Martínez Sala, RM. (2016). Evaluación entre compañeros de la comunicación oral efectiva. En In-Red 2016. II Congreso nacional de innovación educativa y docencia en red. Editorial Universitat Politècnica de València. https://doi.org/10.4995/INRED2016.2016.4295OC
The Effects of the Mediterranean Diet on Biomarkers of Vascular Wall Inflammation and Plaque Vulnerability in Subjects with High Risk for Cardiovascular Disease. A Randomized Trial
Adherence to the Mediterranean diet (MD) is associated with reduced morbidity and mortality due to cardiovascular disease. However, how the MD exerts its effects is not fully known. Aim: To assess the 12-month effects of two enhanced MDs compared to a low-fat diet on inflammatory biomarkers related to atherosclerosis and plaque vulnerability in a subcohort of the PREDIMED (Prevencion con Dieta Mediterranea) study. Methods: A total of 164 participants at high risk for cardiovascular disease were randomized into three diet groups: MD supplemented with 50 mL/d of extra virgin olive oil (MD+EVOO) or 30 g/d of nuts (MD+Nuts) and a low-fat diet. Changes in classical cardiovascular risk factors, inflammatory biomarkers of atherosclerosis and plaque vulnerability were measured after 12 months of intervention. Results: Compared to participants in the low-fat diet group, those receiving MD+EVOO and MD+Nuts showed a higher decrease in systolic (6 mmHg)and diastolic (3 mmHg) blood pressure (P = 0.02; both), as well as a reduction of 10% and 8% in LDL-cholesterol (P = 0.04), respectively. Patients in the MD+Nuts group showed a significant reduction of 34% in CD40 expression on monocyte surface compared to low-fat diet patients (P = 0.03). In addition, inflammatory biomarkers related to plaque instability such as C-reactive protein and interleukin-6 were reduced by 45% and 35% and 95% and 90% in the MD+EVOO and MD+Nuts groups, respectively (P<0.05; all) compared to the low-fat diet group. Likewise, sICAM and Pselectin were also reduced by 50% and 27%, respectively in the MD+ EVOO group (P = 0.04) and P-selectin by 19% in MD+Nuts group (P = 0.04) compared to the low-fat diet group. Conclusions: Adherence to the MD is associated with an increase in serum markers of atheroma plaque stability which may explain, at least in part, the protective role of MD against ischemic heart disease
Primary prevention of cardiovascular disease with a Mediterranean diet
The traditional Mediterranean diet is characterized by a high intake of olive oil, fruit, nuts, vegetables, and cereals; a moderate intake of fish and poultry; a low intake of dairy products, red meat, processed meats, and sweets; and wine in moderation, consumed with meals.1 In observational cohort studies2,3 and a secondary prevention trial (the Lyon Diet Heart Study),4 increasing adherence to the Mediterranean diet has been consistently beneficial with respect to cardiovascular risk.2-4 A systematic review ranked the Mediterranean diet as the most likely dietary model to provide protection against coronary heart disease.5 Small clinical trials have uncovered plausible biologic mechanisms to explain the salutary effects of this food pattern.6-9 We designed a randomized trial to test the efficacy of two Mediterranean diets (one supplemented with extra-virgin olive oil and another with nuts), as compared with a control diet (advice on a low-fat diet), on primary cardiovascular prevention
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