Study of variables likely to influence the reliability of student satisfaction surveys

In this final thesis, a study of the variables that affect the reliability of satisfaction surveys of both the subjects and the teaching staff is carried out. Based on the idea of striving to preserve and improve the quality of teaching at UPC institutions. To achieve this objective, the satisfaction surveys issued by the UPC during the second four-month period of 2020 and the first four-month period of 2021 are analysed and a survey is generated in order to measure the students' perceptions of them. Once this study has been completed, we conclude that the lack of reliability in the surveys is related to the lack of involvement and knowledge of the pupils

Chemical strategies for the presentation and delivery of growth factors

Since the first demonstration of employing growth factors (GFs) to control cell behaviour in vitro, the spatiotemporal availability of GFs in vivo has received continuous attention. In particular, the ability to physically confine the mobility of GFs has been used in various tissue engineering applications e.g. stents, orthopaedic implants, sutures and contact lenses. The lack of control over the mobility of GFs in scaffolds jeopardizes their performance in vivo. In this feature article, an overview is given on how to effectively present GFs on scaffolds. In the first part, non-covalent strategies are described covering interaction motifs that are generic to direct GF immobilization. In the second part, covalent strategies are described emphasizing the introduction of reactive groups in existing biomaterials. The feature article ends with a description of strategies based on the physical entrapment of growth factors