Search results for "PREVENTIVE CONSERVATION"
showing 10 items of 12 documents
New biocides based on imidazolinium-functionalised hybrid mesoporous silica nanoparticles
2022
Here, we report the development of a new biocide based on hybrid mesoporous silica nanoparticles (MSN). The MSN was synthesized by condensation method in emulsion followed by grafting with two different silylated ionic liquid moieties, namely butyl imidazolinium bromide and imidazolinium propansulfonate betaine. Features of nanoparticles were characterized by Thermogravimetry, Infrared and ss-NMR Spectroscopy, and Transmission Electron Microscopy. The antibacterial properties were tested against a Gram-positive bacterial strain previously isolated from artefacts of interest in the field of Cultural Heritage. Interestingly, the hybrid material presents an antibacterial activity higher than i…
Testigos del Johnny. Nueva colección de carteles y fotografías del Club de Música y Jazz del Colegio Mayor San Juan Evangelista para la Biblioteca Hi…
2023
Este documento presenta la colección de carteles y fotografías de los conciertos que organizó el Club de Música y Jazz del Johnny, los cuales, actualmente, forman parte de la colección de la Biblioteca Histórica Maqués de Valdecilla. En el presente artículo se expone el proyecto realizado para su conservación, catalogación y almacenamiento. Este trabajo fue realizado por la autora del mismo durante la realización del TFM (Trabajo de Fin de Máster) del Máster en Conservación de Patrimonio Cultural de la Universidad Complutense de Madrid.
MODELIZACIÓN MEDIANTE CFD DE PARA EVALUAR LA VENTILACIÓN EN UN EDIFICIO ARQUEOLÓGICO, DATOS PRELIMINARES.
2016
[EN] The present study addresses the influences of wind flow structure, as an important factor responsible of material damage (erosion contributing) on “Casa di Diana” Mithraeum, a roman building (130 A.D.) sited on Ostia Antica (archaeological site, Rome – Italy), through the Computational Fluid Dynamics (CFD) simulations and direct measurements for its verification and validation (V&V). In this preliminary work, we present results relating to 3D reconstruction (geometry of the entire building) and the mesh importing on Fluent software. In general, the data check confirms, with ±10%, a good agreement (model) between the numerical solutions and direct measurements data by portable sensor. F…
Gestión y liderazgo del talento: las claves del éxito empresarial
2021
Desde hace ya unas décadas, se está trabajando con profundidad en la investigación científica sobre la evidencia en las empresas de la gestión del talento. A nivel profesional, ya han sido muchas organizaciones las que han dado el salto cualitativo hacia una nueva manera de enfocar los recursos humanos (RR. HH.). Principalmente porque esta nueva perspectiva está más vinculada tanto al negocio como a los objetivos empresariales, además de ser más aceptada por la mayoría de los profesionales. Desde los orígenes de la guerra del talento por Mckinsey hasta la actualidad, la investigación está analizando el papel de la gestión del talento en los resultados organizativos. En este sentido, Luna (2…
Fungi and Bacteria in Indoor Cultural Heritage Environments: Microbial-related Risks for Artworks and Human Health
2016
Cultural heritage constitutive materials can provide excellent substrates for microbial colonization, highly influenced by thermo-hygrometric parameters. In cultural heritage-related environments, a detrimental microbial load may be present both on manufacts surface and in the aerosol. In this study, bacterial and fungal colonisation has been investigated in three Sicilian confined environments (archive, cave and hypogea), each with peculiar structures and different thermo-hygrometric parameters. Particular attention has been paid to microorganisms able to induce artifacts biodeterioration and to release biological particles in the aerosol (spores, cellular debrides, toxins and allergens) p…
Biotechnology for microbial monitoring of indoor cultural heritage environments
2014
An integrated approach for the characterization of bioaerosol was employed in different sites (that include hypogeal and semi-confined areas), characterized by great cultural/artistic interest besides peculiar architectural structures, thermo- hygrometric and lighting parameters. These typologies of indoor environments preserve several artworks like mural paintings, stone-works, paper or parchments that are susceptible of microbial colonization. The presence of fungal spores and low air change can induce both potentially effects to human health (users/operators) or biodegradation of historical-artistic manufacts. We perform bioaerosol sampling by a portable sampler (Sartorius MD8), equipped…
Bioaerosol
2022
Cultural heritage constitutive materials can provide excellent substrates for microbial colonisation, highly influenced by thermo-hygrometric parameters. In cultural heritage-related environments, a detrimental microbial load may be present both on artworks surface and in the aerosol. Confined environments (museums, archives, deposits, caves, hypogea) are characterised by peculiarstructures and different thermo-hygrometric conditions, influencing the development of a wide range of microbial species, able to induce artefact biodeterioration and to release biological particles in the aerosol (spores, cellular debrides, toxins, allergens) potentially dangerous for the human health (visitors/us…
Bioarosol
2022
Cultural heritage constitutive materials can provide excellent substrates for microbial colonisation, highly influenced by thermo-hygrometric parameters. In cultural heritage-related environments, a detrimental microbial load may be present both on artworks surface and in the aerosol. Confined environments (museums, archives, deposits, caves, hypogea) are characterised by peculiar structures and different thermo-hygrometric conditions, influencing the development of a wide range of microbial species, able to induce artefact biodeterioration and to release biological particles in the aerosol (spores, cellular debrides, toxins, allergens) potentially dangerous for the human health (visitors/u…
BIOAEROSOL IN INDOOR ENVIRONMENTS FOR CONSERVATION OF CULTURAL HERITAGE: POTENTIAL RISKS FOR HISTORICAL-ARTISTIC MANIFACTS ANO HUMAN HEALTH
2014
An integrated approach was applied for the characterization of the biological airborne particulate in four Sicilian sites with peculiar structure, thermo-hygrometric and lighting parameters. We focalized the attention on: ,) Crypt in the Cathedral Treasury Museum (Palermo), an underground environment (lithic and stone artifact), daily visited by tourist and characterized by a reduced indoor-outdoor exchange; it) the Saints Cave in Licodia Eubea (Catania), a semi-confined environment (fresco), strongly influenced by the surrounding countryside and by a continuous airflow; iit) the Diocesan Historic Archive in Palermo, (documentary funds, IX-XXsec.), characterized by low air change rate and r…
Analysis of microbial colonization
2012
CONTENT OF THE BOOK The book takes into consideration archaeological artefacts made out of the most common materials, like stones (both natural and artificial), mosaics, ceramics, glass, metals, wood and textiles. But all these important materials are accompanied by less diffuse artefacts and materials, like clay tablets, goldsmith artefacts, icons, leather and skin objects, bones and ivory, coral and mother of pearl. Each type of artefact and/or material is treated from at least four different points of view: - Composition and processing technology - Alteration and degradation causes and mechanisms - Procedures for conservative intervention - Case study and/or examples of conservative inte…