A study on red lead degradation in a medieval manuscript Lorvão Apocalypse (1189)

2009 ◽  
Vol 40 (12) ◽  
pp. 1966-1973 ◽  
Author(s):  
Catarina Miguel ◽  
Ana Claro ◽  
António Pereira Gonçalves ◽  
Vânia S. F. Muralha ◽  
Maria João Melo
Keyword(s):  
Chemija ◽  
2020 ◽  
Vol 31 (4) ◽  
Author(s):  
Aušra Čiuladienė ◽  
Aivaras Kareiva ◽  
Rimantas Raudonis

This study focuses on the characterization of cinnabar, red lead and realgar paints, since the red colour was very often used for the illuminations and rubrics of medieval manuscript. The commercial pigments (cinnabar (HgS), red lead (Pb3O4), realgar (As4S4)) and binding media (gum Arabic, fish and parchment glue) were used for the preparation of analogous to historical paints. This work is on-going and at this stage, the resulting red paint samples were analysed to create a short data library that could be used to describe the various red paints and their compositions. The obtained paints were characterized before and after accelerated aging using Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM/EDX), X-ray diffraction (XRD) and thermal (TG/DSC) analysis techniques. These results of versatile characterization are useful to develop red paint guidelines for the storage and how they affect current and future conservation of these objects.


Mediaevistik ◽  
2020 ◽  
Vol 32 (1) ◽  
pp. 541-544
Author(s):  
Juan Carlos Bayo

This monograph deals with illuminated manuscripts created in French-speaking regions from the mid-thirteenth to the mid-fifteenth century, i.e., from the earliest narratives of Marian miracles written in <?page nr="542"?>Old French to the codices produced at the Burgundian court at the waning of the Middle Ages. Its focus, however, is very specific: it is a systematic analysis of the miniatures depicting both material representations of the Virgin (mainly sculptures, but also icons, panel paintings, altarpieces or reliquaries) and the miracles performed by them, usually as Mary’s reaction to a prayer (or an insult) to one of Her images.


Mediaevistik ◽  
2018 ◽  
Vol 31 (1) ◽  
pp. 450-452
Author(s):  
John M. Jeep

Under the somewhat different, certainly intentionally punning title, Unter Druck: Mitteleuropäische Buchmalerei im Zeitalter Gutenbergs / Under Pressure / Printing […] in the Age of Gutenberg, this volume first appeared in German (Lucerne: Quaternio, 2015) to accompany a series of twelve different exhibitions of largely fifteenth-century book illumination across Central Europe. The exhibitions in Germany, Austria, and Switzerland were held, in part overlapping, from September 2015 – March 2017. They were bookended by exhibits in Vienna and Munich (for the latter, see Bilderwelten. Buchmalerei zwischen Mittelalter und Neuzeit. Katalogband zu den Ausstellungen in der Bayerischen Staatsbibliothek vom 13. April 2016 bis 24. Februar 2017, ed. Jeffrey F. Hamburger et al. Buchmalerei des 15. Jahrhunderts in Mitteleuropa, 3 (Lucerne: Quaternio, 2016). For each of ten somewhat smaller exhibitions a catalogue of uniform size and format was produced; they are, according to the publisher, already out of print. The three editors of the more comprehensive collection, Painting the Page, penned contributions that complement Eberhard König’s study, “Colour for the Black Art,” which traces <?page nr="451"?>the development of ornamentation to the Gutenberg and following printed Bibles. Early printed Bibles, in Latin or in the vernacular, tended only to provide space for initial and marginal, as opposed to full page illumination. These admittedly limited artistic accomplishments often allow for more precise localization of incunabula than other available resources. At the same time, differences and even misunderstandings – such as failure to follow instructions to the illuminator – on occasion lead to fruitful cultural analysis. Finally, printed copies that were never adorned were sometimes in the past thought to be superior, untouched, as it were, by the artistry of the ‘old’ manuscript world. König argues that the study of early printed books, and especially the illuminations they contain, should be celebrated not only as ancillary scholarship, but also as a discipline in its own right.


To investigate the normal anatomical distribution of the arterial blood supply, venous drainage and innervation on both the dorsal and plantar aspects of pes region including the level of tarsal joint due to its clinical importance with a little data available. Methods: Ten hind paws of five adult apparently healthy domestic dogs of both sexes; six paws injected, through blood vessels with colored latex neoprene for anatomical dissection and the other four paws injected a contrast mixture of red lead oxide and turpentine oil for the radiographic investigation of blood vessels. In addition to five live dogs used to apply the distal limb local anesthesia with the aid of Needle-Guided Ultrasonography. Results: This investigation revealed that the dorsal and plantar aspects of dog pes region supplied by superficial and deep sets of arteries, veins and nerves. The three dorsal metatarsal arteries originated from the arcuate artery. The medial tarsal vein forming characteristic venous arcades. The 3rd plantar metatarsal artery divided into two axial arteries while the 2nd and 4th continued axially without division. The plantar common digital and metatarsal nerves II, III, IV communicated to give origins of the axial and abaxial plantar proper digital nerves except the abaxials of the 2nd and 5th digits which supplied by a branch from medial plantar nerve and lateral plantar nerve respectively. Conclusion: There were little differences between dogs and other carnivores in vascularization of hind paw with the recommendation of using Needle-Guided Ultrasonography in the distal limb local anesthesia to avoid vascular puncture or damage.


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