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Treball desenvolupat en el marc del programa "European Project Semester". The Railway Museum of Catalonia has been based in Vilanova i la Geltrú since 1990. It houses one of the biggest collections of locomotives in Europe and shares and promotes historical and technological knowledge of the railways and about trains and locomotives with more than thousands of visitors each year. Many of these visitors come for educational purposes on school trips. The Vilanova Campus of the UPC (Universitat Politècnica de Catalunya) is situated next to the museum and the two entities have collaborated on several projects in the past to promote knowledge of the industrial heritage of the railways, to highlight the role of engineering in the past, present and future of the railways and to encourage the engineers of the future to study engineering courses at the UPC in Vilanova. The project has been carried out within the umbrella of the European Project Semester (EPS) and involves the Railway Museum and the UPC joining forces to promote both the industrial heritage of the railways and to foster the possibility of future engineering studies among primary school students. The main aim of this project then was to design activities for primary school students (in three age groups from 6 to 12 years old) when on school trips to the Railway museum and that also encompass awareness raising of the engineering school in Vilanova and its role in moulding engineers of the future. The project has been carried out by four international students and involved various stages. Initially, gaining an understanding of the museum’s expectations and the scope of the project was key. Then, in order to create the activities for the primary school children it was necessary to gain insights into their educational needs, objectives and curriculum competencies. Visits to primary schools and to the museum, accompanying primary school children on school visits, were conducted to observe the children during the visit and gain insights into their interactions. Interviews with teachers and head teachers were also conducted and proposals for activities passed through creative, testing and refining stages including feedback from education professionals. The results of the project include a redesign of the museum visit for primary school children. This is now more interactive and highlights the importance of trains and engineers in the future. A character has also been created to appeal to the young visitors and to guide them through the visit as well as the activities designed to be completed at different stops along the tour as well as a take-home booklet for the children to complete during the visit. After usability testing was carried out and further feedback from educational professionals obtained, a new guide script for the primary school tour, a character, a time capsule, an introductory video for the activity, activity booklets and flyers to promote the activity have been delivered to the museum. Incoming

Resumen Introducción: durante las primeras 72 horas los recién nacidos pierden peso debido a la contracción del líquido extravascular permitiéndole una adecuada adaptación a la vida extrauterina. Objetivos: conocer la variación del peso en el recién nacido sano en las primeras 72 horas de vida dependiendo de la vía de nacimiento y el tipo de alimentación. Construir gráficos de variación de peso promedio en función de las horas de vida de los recién nacidos de bajo riesgo durante la internación posparto en el CHPR, para su utilización en la práctica clínica diaria. Materiales y métodos: estudio observacional, descriptivo y prospectivo de una muestra por conveniencia, realizado en las salas de alojamiento madre-hijo del CHPR, durante el período comprendido entre julio y agosto de 2016, incluyendo 431 neonatos. Se registran valores de peso al nacer, al alta y un peso intermedio entre las 6 y 72 horas de vida. Resultados: el 90,4% de los recién nacidos registraron una disminución del peso al alta, siendo su pérdida porcentual promedio de 5,3±3,2%. El porcentaje máximo de descenso de peso se observa entre las 42 - 48 horas siendo la media de este de 5,7±3.5%, estabilizándose el descenso en las horas posteriores sin mayores variaciones con respecto a éste. Conclusiones: la media de pérdida de peso al alta fue de 5,3±3,2%. La media de pérdida máxima de peso a dos desvíos estándar se observa a las 54 horas de vida, siendo ésta 10,7%, seguida de un período de recuperación. Summary Background: during the first 72 hours after birth, newborns lose weight due to the contraction of extravascular fluid which allows the adequate adaptation to extra uterine life. Objectives: to determine the variation in weight in low risk newborns during postpartum hospitalization depending on delivery mode and feeding type. To generate graphs of average weight variation depending on the hours of life for low risk newborns during postpartum hospitalization at CHPR, to be used in clinical practice. Methods: an observational, descriptive and prospective study of a convenience sample, at the maternity units of CHPR, from July 11, 2016 to August 31 of the same year, with a sample of 431 infants. Three weight values were recorded. The first two, weight at birth and at discharge were extracted from the Perinatal Information System (SIP) and the third weight value was measured by researchers between 6 and 72 hours of life. Results: 90.4% of newborns showed a decrease in weight at discharge, with an average of 5.3±3.2% loss. The maximum weight loss percentage was observed between 42-48 hours with mean of 5.7±3.5%, with a tendency towards stabilizing this decline in the following hours without major variations afterwards. Conclusions: the average weight loss at discharge was 5.3±3.2%. The weight loss nadir was observed at 54 hours of life, being the mean -2 standard deviations 10.7%.