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The mummified body of an eight year-old girl found in Grottarossa (Rome, Italy) in 1964 is of great importance as this is the only evidence of the embalming process in ancient times in Rome. A few days after the discovery, the mummy had already begun to deteriorate due to drastic changes in the established microclimate. It was then transferred to the Istituto di Medicina Legale, where it was stored in a refrigerated cell from 1970 until it was decided in 1991 to transfer it to the Istituto di Anatomia Patologica dell' Universita La Sapienza in Rome. In 1993, it was given over to the Museo Romano, where conservation parameters needed to be defined. Microclimatic and microbiologic monitoring suggested keeping the mummy at a relative humidity between 40-50% at a temperature no higher than 20°C. It was also suggested to use paradichlorobenzene as an insect-repellent inside the mummy's display chamber. Further research regarded materials used in the embalming procedure: textiles as well as the origin and type of resins covering the surface of the body. The article includes a table of identified pollens and the quantity of granules found trapped in the resins in relation to different samples. The solution employed for the mummy's display in the Sala di Lusso of the Museo Numismatico in the Palazzo Massimo alle Terme included developing a mathematical model based on the Fourier equation on the propagation of thermal energy so as to estimate the influence of temperature changes at certain depths in the ground, through certain materials. For this, different technical parameters were simulated to determine the optimal results. The article describes the design of the special display chamber for the mummy. Two appendixes are included: the analysis of the textiles found on the mummy and the molecular analysis of the mummy's DNA.
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