Background: Fish are the main source of omega-3 long-chain polyunsaturated fatty acids (PUFAs), such as EPA and DHA, which are known to be beneficial for human health [1,2]. However, thermal culinary processing may cause lipid oxidation and reduce its nutritional value [1]. Objective: This study aims to compare the lipid nutritional value of turbot (Scophthalmus maximus) muscle before and after culinary process...
In this work a new carbon nanotubes (CNT) based multi-directional strain sensor capable of quantifying and indicate strain direction is foreseen. This work investigates the electromechanical behavior of an aligned CNT sensing patch strained at 45◦ in order to validate its multi-directional sensing capability. Vertically aligned CNT forests are produced by chemical vapor deposition (CVD) and then mechanically kn...
Made available in DSpace on 2022-04-29T09:12:17Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-01-01; A Swing-By maneuver occurs when a satellite approaches a celestial body to gain or lose energy from its gravitational field. The present work studies Swing-By maneuvers that are combined with the use of an impulsive thrust in different directions during the passage of the spacecraft by the periapsis of ...
Made available in DSpace on 2020-12-12T01:11:45Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-01-01. Added 1 bitstream(s) on 2021-07-15T14:37:43Z : No. of bitstreams: 1 S0100-83582019000100278.pdf: 293635 bytes, checksum: 130a188b3948f8169bdc561b0d7e1315 (MD5); The aim of this study was to evaluate the effectiveness of glyphosate, 2,4-D, and diquat to control the aquatic macrophytes Brachiaria subquadr...
Além do valor como recurso terapêutico, plantas medicinais também possuem potencial para serem utilizadas como fonte de princípios ativos contra fitopatógenos. O objetivo deste trabalho foi avaliar o efeito de óleos essenciais das espécies medicinais Baccharis dracunculifolia (alecrim-do-campo), Schinus terebinthifolius (aroeirinha) e Porophyllum ruderale (arnica-brasileira) sobre o crescimento dos fungos fitop...
This paper presents an aligned carbon nanotube (CNT)-based strain sensor. Vertical aligned carbon nanotubes (VA-CNT), synthesized by chemical vapour deposition (CVD), were knocked down onto polymeric films, in order to obtain a thin 10 × 10 × 0.05 mm CNT patch. Different polymeric substrates, ADEXepoxy, polyethylene terephthalate (PET) and polyimide (PI) were used. The samples’ morphology before and after the k...
Made available in DSpace on 2018-12-11T16:54:21Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-07-09; Although some studies in sheep have indicated leptospire colonization of the genital tract, further studies are needed to clarify the role of genital carriers in this species. Thus, this study aimed to evaluate the colonization of pathogenic leptospires in the genital and urinary tract of slaughtered sh...
Students seldom contemplate the importance of sustainability in family businesses. Indeed, the economic dimension of sustainability using performance statements remains a neglected field of study. The case of a Spain family firm in the tourism sector, Meliá Hotels International, is used to introduce students to sustainability analyses through the study of the company's sustainability information. This provides ...
Abstract —This study addresses the consumption of musical and/or movies and series online according to the frequency of Internet use. The time spent on Internet, nowadays, goes beyond a simple search or checking the email. What will be the sociodemographic characteristics of Portuguese users? Will the choices facing the Portuguese users be homogeneous in what concerns the frequency of Internet use to access mus...