The Structural Conservation of Panel Paintings

Beardsley, Barbara H.; Dardes, Kathleen; Rothe, Andrea

doi:10.2307/3179981

Cited by 8 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…2 a ). The peaks at ∼1680 and 1540 cm −1 are typical of amide group (C = O stretching and NH bending respectively) in the proteins and could be related to the use of an animal glue as organic binder of the layer, even if the peaks at 2920 and 2850 cm −1 expected for the stretching of C–H bond are lacking 4. It is important to highlight the weak peak at ∼1450 cm −1 , associated to the absorption at 879 cm −1 , typical of the group 9.…”

Section: Resultsmentioning

confidence: 99%

“…3 In order to plan the correct restoration and conservation of an artwork, it is necessary to understand the function of the pictorial layers on the wood surface on the basis of its compositional features. 4 The object of this paper is a Bertesi's wooden bas relief, representing a religious scene, owned by the 'Fondazione Citta `di Cremona'. This artwork is very similar for working technique and size to those representing different episodes of the life of Jesus Christ, held by the 'Musei Civici' of Cremona.…”

Section: Introductionmentioning

confidence: 99%

“…These characteristics could have influenced, and in some cases delayed, the deterioration process affecting the artwork, caused by the interaction with the environmental agents, especially biological for the wood materials 3. In order to plan the correct restoration and conservation of an artwork, it is necessary to understand the function of the pictorial layers on the wood surface on the basis of its compositional features 4…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Surface coating on Bertesi's wooden bas relief (seventeenth century)

Malagodi

Basso

Avagliano³

et al. 2013

Surface Engineering

View full text Add to dashboard Cite

It is known that the physical properties and the conservation rate of a wooden artefact are strictly related to its surface treatment, especially in order to control mechanical and rheological properties and to increase the durability of the wood. The pictorial film of painting forms a structure that, adhering to the wood surface, plays both a protective and an aesthetic role. In order to restore artefacts, it is important to know the original function of the external coating. The aim of this paper is to define the nature and the function of a white coating covering all the surface of a bas relief made by Giacomo Bertesi, one of the most important artists and wood carvers in northern Italy, in the second half of the seventeenth century. Three microsamples were taken from the surface. Micro-Fourier transform infrared and scanning electron microscopy-energy dispersive X-ray spectroscopy analyses were performed to characterise the materials and the different layers.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Surface coating on Bertesi's wooden bas relief (seventeenth century)

Malagodi

Basso

Avagliano³

et al. 2013

Surface Engineering

View full text Add to dashboard Cite

show abstract

“…Nitrogen recycling is well documented within some Bacteroidota endosymbionts [71][72][73] and can be an important benefit for insects developing in nitrogen-limited diets [28,29,[74][75][76]. In Bostrichid beetles, the recycling of urea as a source of amino groups is likely important for the formation of tyrosine, but also other amino acids and amino acid-derived components of the cuticle like N-acetyl-glucosamine, the monomer of chitin [35].…”

Section: Discussionmentioning

confidence: 99%

Cuticle supplementation and nitrogen recycling by a dual bacterial symbiosis in a family of xylophagous beetles

et al. 2023

View full text Add to dashboard Cite

Many insects engage in stable nutritional symbioses with bacteria that supplement limiting essential nutrients to their host. While several plant sap-feeding Hemipteran lineages are known to be simultaneously associated with two or more endosymbionts with complementary biosynthetic pathways to synthesize amino acids or vitamins, such co-obligate symbioses have not been functionally characterized in other insect orders. Here, we report on the characterization of a dual co-obligate, bacteriome-localized symbiosis in a family of xylophagous beetles using comparative genomics, fluorescence microscopy, and phylogenetic analyses. Across the beetle family Bostrichidae, most investigated species harbored the Bacteroidota symbiont Shikimatogenerans bostrichidophilus that encodes the shikimate pathway to produce tyrosine precursors in its severely reduced genome, likely supplementing the beetles’ cuticle biosynthesis, sclerotisation, and melanisation. One clade of Bostrichid beetles additionally housed the co-obligate symbiont Bostrichicola ureolyticus that is inferred to complement the function of Shikimatogenerans by recycling urea and provisioning the essential amino acid lysine, thereby providing additional benefits on nitrogen-poor diets. Both symbionts represent ancient associations within the Bostrichidae that have subsequently experienced genome erosion and co-speciation with their hosts. While Bostrichicola was repeatedly lost, Shikimatogenerans has been retained throughout the family and exhibits a perfect pattern of co-speciation. Our results reveal that co-obligate symbioses with complementary metabolic capabilities occur beyond the well-known sap-feeding Hemiptera and highlight the importance of symbiont-mediated cuticle supplementation and nitrogen recycling for herbivorous beetles.

show abstract

“…Au-delà de ce seuil, le gonflement empêché se poursuit dans l'espace interne des fibres de la propre matière, tassement irréversible (compression set, en anglais) (Hoadley 1995) (Colmars 2011 : 51) qui tire du domaine élastique le bois empêché du tenon.…”

De l’ubiquité de l’âme

Blot¹

2023

ephaistos

View full text Add to dashboard Cite

De l'ubiquité de l'âmeVoyage autour des souffrances diachroniques de la poutre-navire About the ubiquity of the web (travel around the diachrony of the sufferings of the ship-girder) Jean-Yves BlotUn biographe de Schopenhauer signale l'élégance d'une phrase du philosophe allemand au sujet du Temps qui vole au-dessus des choses, mais sans y laisser de traces 1 (Bowen 1877), affirmation que tout charpentier naval du temps des galères aurait pu contredire, preuves à l'appui.Ce qui suit est un extrait de journal de bord, celui d'un périple individuel entrepris autour de la mécanique qui affecte le navire dès l'amont de sa mise à l'eau jusqu'au tocsin des tout derniers moments de sa carrière à flot.Pareil voyage, tel qu'il est présenté ici, n'a rien d'un énoncé formel et relève moins encore d'une tentative de discipliner concepts et méthodes d'ordre analytique mais plutôt de la volonté d'explorer, sonder, voire savourer leur pertinence opératoire sur l'établi de l'archéologue naval.Je dois à Éric Rieth, mon directeur de thèse en Sorbonne, l'audace généreuse de m'avoir laissé mener sous sa bannière ce périple peu conformiste 2.

show abstract

The Structural Conservation of Panel Paintings

Cited by 8 publications

References 0 publications

Surface coating on Bertesi's wooden bas relief (seventeenth century)

Surface coating on Bertesi's wooden bas relief (seventeenth century)

Cuticle supplementation and nitrogen recycling by a dual bacterial symbiosis in a family of xylophagous beetles

De l’ubiquité de l’âme

Contact Info

Product

Resources

About