Results 191 to 200 of about 1,832,730 (252)

Treating with minerals in the Middle Ages: the rare substance mūmiyā' (pitch-asphalt) and its medicinal uses in Byzantium. [PDF]

Med Hist
Bouras-Vallianatos P, Käs F.
europepmc   +1 more source

II. WRITING MATERIALS AND BOOKS IN ANTIQUITY

Bulletin of the Institute of Classical Studies, 1986
openaire   +1 more source

Research on Enhancing Fire Detection Performance in Ancient Architecture Under Occlusion Scenarios Based on YOLO-AR. [PDF]

Sensors (Basel)
Li C, Wang M, Lei L, Liu H, Gao K, Wang Z.   +5 more
europepmc   +1 more source

Present(ed) bodies, absent agency: "patients' perspectives" at the Museum Vrolik of the body and medicine. [PDF]

Front Sociol
Lafleur A.
europepmc   +1 more source

Is Gold Yellow? Plant Dyes and Gold-Making in the Ancient Chemical Arts. [PDF]

Ambix
Manco C, Martelli M.
europepmc   +1 more source

Oxalis pes-caprae L. (Oxalidaceae): From Invasive Concern to Promising Bioresource for Health and Sustainable Applications. [PDF]

Plants (Basel)
Malfa GA, Bianchi S, Spadaro V, Di Giacomo C, Raimondo FM, Acquaviva R.   +5 more
europepmc   +1 more source

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Framboidal pyrites in antique books

Nature, 1997
During the Middle Ages and the Renaissance, ink was commonly manufactured by mixing tannin with iron sulphates. The anoxic environment inside ancient books favours the reduction of the sulphate in the ink and allows spherical aggregates (framboids) of submicrometre-sized pyrite crystals (iron sulphide) to be formed.
Jesús Martínez-Frías, Javier C García-Guinea   +1 more
exaly   +3 more sources

On the Edition of Books in Antiquity

Vigiliae Christianae, 1957
Prof. H. I. Marrou has recently discussed the technique of editing. Though the testimonies, adduced by him, mainly concern the Christian Fathers, he also speaks about the editions of classical authors (Marrou 1.1.222-4). I should like to make a few observations here, because Prof. M.
openaire   +1 more source