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Pecia Complutense comenzó a publicarse en formato digital hace ahora 10 años. Con este motivo se analiza la trayectoria, evolución y perspectivas de futuro del Boletín de la Biblioteca Histórica. Tras una breve historia de la publicación, se dan a conocer sus objetivos, procedimientos de trabajo, procedencia de las colaboraciones, filiación de las autorías y algunos ejemplos de las estadísticas de uso en el repositorio en Acceso Abierto Complutense. También se analiza su visibilidad en las plataformas de evaluación, Directorios de revistas de CC. Sociales y Humanidades,Portales de publicaciones científicas como DIALNET y catálogos de Bibliotecas. Se plantea su revisión para adaptarse a las directrices y criterios de calidad en la investigación en Humanidades., Complutense Pecia began publication in digital format 10 years ago now in order to spread the Complutense bibliographic heritage. For this reason the path, evolution and future prospects of the Bulletin of the Historical Library are analyzed. Disclosed their goals, work procedures, source collaborations, authorship affiliation and examples of usage statistics. The visibility is also analyzed in the evaluation platforms, directories of Open Access Journals , Social and Humanities portals to scientific publications, as DIALNET and catalogs of libraries.On the other hand, all of the above will be reviewed in order to meet the guidelines and the highest number of quality criteria that are required for scientific publications in the Humanities., Biblioteca Histórica Marqués de Valdecilla, UCM. Biblioteca, TRUE, pub

Low field NMR T2 transverse relaxation measurements were performed on muscle samples from sixty hake (Merluccius merluccius, L.). Fish fillets from hake stored in ice for 3 and 14 days were subjected to different freezing methods (air blast, liquid nitrogen or walk-in freezer) and storage conditions ( 20 and 10 C for 5 days, 8 and 18 weeks). Distribution analysis of T2 data of unfrozen muscle displayed a major band (T21), accounting for 90–92% of the total signal, with a relaxation time centred at 47–60 ms and a broad band with protons of higher mobility between 300 and 800 ms, accounting for 3–5% of the signal. Upon freezing, T21 became wider and an extra band appeared within the range 120–360 ms. Whereas no changes were detected at 20 C, the T21 time constant decreased during frozen storage at 10 C in a similar way for all three freezing methods. The relative abundance of T21 declined with storage time but differences were found as a function of freezing. Results are discussed in the light of morphological alterations and protein denaturation, and it is concluded that LF NMR relaxometry is sensitive to different freezing and frozen storage conditions which can have important implications for the quality of fish muscle.