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[Ar] تقييم كفاءة الثيمول كاحدى اجراءات الصيانة والترميم تطبيقا على السجلات الورقية المصابة بدار المحفوظات المصرية دار المحفوظات الوطنية المصرية هى ثاني أقدم دار أرشيفية فى العالم من أجل حماية جميع الوثائق والأوراق الأثرية والتاريخية الرسمية من الضياع والسرقة. والدار تمتلئ بنحو 150 مليون وثيقة أثرية وتاريخية رسمية.الا انه وللأسف الشديد اغلب هذه المواد الأثرية قد تعرضت لتدهور بيولوجى مما أدى إلى خسارة كبيرة. ومن هنا تظهر أهمية استخدام مبيدات الفطريات وقد وقع الاختيار على أحد أكثر المبيدات شيوعا فى مجال الاثار وهو «الثيمول» لدراسة مدى كفاءته تجاه الفطريات عند استخدامه بتركيزات مختلفة. هذا إلى جانب دراسة أولوية الحفظ للأرشيف الورقى المكتوب بخط اليد لعقود الزواج «بمحكمة دمياط» لما له من أهمية كبيرة في إبراز معلومات غاية فى الاهمية وثائقيا وذلك بعد تعرضه لعدوى فطرية. استراتيجيات عمليات الترميم والصيانة التى تمت بالدراسة تتم من اجل الحفاظ على هذا الدفتر الورقى من أجل الحفاظ عليه لما يحويه من معلومات أثرية هامة. كما تم استخدام بعض التقنيات الفحوص والتحليل خلال الدراسة وهى: طريقة حيود الأشعة السينية (XRD) للتعرف على الحبر الكربونى، والتحليل الطيفى للأشعة تحت الحمراء (FTIR) لتحديد المادة الرابطة للاحبارالمستخدمة ومدى بلورة السيليلوزالمكون الرئيسى للورق، حيث أظهرت النتائج أن الحبر الأسود المستخدم فلا الوئاثق الورقية بالدفتر عبارة عن كربون وأن المادة الرابطة للحبر هى الصمغ العربي. تم تطبيق عدة خطوات لترميم الدفتر مثل عملية التنظيف، تثبيت الأحبار، فرد الأوراق، إصلاح التمزقات، تدعيم الأجزاء الضعيفة وإزالة الترميمات السابقة غير المناسبة.وعلى هذا تهدف هذه الدراسة إلى إلقاء الضوء على دار المحفوظات الوطنية المصرية وإبراز دورها المهم في حماية وحفظ الوثائق الأثرية والتاريخية فضلا عن تقييم كفاءة الثيمول تجاه الفطريات باستخدام تركيزات مختلفة مع شرح أهم إجراءات الترميم المختارة للدفتر الورقى المكتوب بخط اليد الخاص بعقود الزواج بمحكمة دمياط. [En] The Egyptian National Archives Dar-Elmahfouzat is the second oldest archive house in the world built in order to protect all the official archaeological and historical documents and papers from loss and theft. It possesses about 150 million official archaeological and historical documents. Unfortunately, all these archaeological materials are exposed to biological degradation which results in great loss. Hence the importance of using fungicides. The choice fell on one of the most commonly used in the field “thymol” and its efficiency towards fungi in different concentrations. The author gives the priority of conservation to this important handwritten paper archive of the marriage contracts' of Damietta court, because of their great importance to posterity and to highlight such significant historical data threatened by fungal infection. The specific conservation strategies employed to conserve this paper archive were meant to keep them safe and secure and to give us the important archaeological information that they contain. Also some analytical methods were used here: X-ray diffraction (XRD) method for identifying the carbon ink, Fourier Transform Infrared Spectroscopy (FTIR) for determining the ink binder and the paper crystallinity. The results revealed that the black ink was carbon and ink binder was Gum Arabic. Different types of conservation processes were used: Cleaning process; fixing the inks; flattening and crease removal; repairing tears and supporting the weaker parts in completion process; and inappropriate previous repairs removal. This study aims to shed light on the Egyptian National Archives Dar-Elmahfouzat and highlight its important role. Also clarifying its importance in protecting and preserving the archaeological and historical documents, explain the thymol efficiency towards fungi in different concentrations and the most important treatment procedures for the selected handwritten paper archive of the marriage contracts of the court of Damietta.

The grey silverfish Ctenolepisma longicaudatum is a new and serious pest spreading rapidly across Europe. Compared to the silverfish Lepisma saccharinum, it does not depend on relative humidity above 70% and thrives also in new museum buildings, modern storage depositories, apartments, and office buildings. Especially collections of graphic art, modern art on paper, photographs, but also archives and libraries are increasingly affected by this pest. Damage of paper objects has been reported by different authors and institutions across Europe. As these animals live in inaccessible cracks and crevices inside the buildings, we investigated the spread of microorganisms on living grey silverfish, to show a potential additional threat posed by this pest. In 8 locations in Austria living animals were collected with traps and placed for 10 min on agar plates which were incubated for 2 weeks. After incubation of 50 agar plates, between 2 and 20 colonies of fungi were growing on each plate. The most dominant fungal genera were Cladosporium (Cladosporium cladosporioides clade) and Penicillium (Penicillium glabrum, Penicillium decumbens); also, species of the genera Aspergillus, Alternaria, Botrytis, Bartalinia, Byssochlamis, Chaetomium and Mycothypha were found. The diversity of fungi reflects the common fungal community of museums and archives. The spores and mycelial fragments of the fungi are obviously travelling on the legs and bodies of the silverfish. [ABSTRACT FROM AUTHOR]

The paper discusses the open, inclusive, dynamic, proactive notion of cultural heritage that is emerging in the international scientific debate. Some significant innovations are examined first: the overcoming of the dualism between tangible and intangible cultural heritage, the increasing role of local communities in the processes of heritage recognition, safeguarding and enhancement and the need for valorisation as a democratic mandate. Aiming at developing this approach, the second step of the research focuses on industrial heritage, investigating its specific features and values. A case study is provided in order to understand some crucial issues concerning industrial heritage management and value creation. Focusing on the City of Paper (Fabriano, Italy), the activities carried out by the Museum of Paper and Watermark and by the Institute of Paper History Gianfranco Fedrigoni (ISTOCARTA) are analysed in-depth, highlighting the role of collaboration among the different actors involved in industrial heritage management in order to promote sustainable local development.

The Ottoman Archives have one of the richest archive collections in the world. However, not all the archived documents are well preserved and some undergo biodeterioration. Therefore, a rapid and promising treatment method is necessary to preserve the collection for following generations as heritage. Radiation presents as an alternative for the treatment of archival materials for this purpose. In this study, we conducted a survey to determine the contamination species and the D 10 values of the samples obtained from the shelves of the Ottoman Archives. The samples also included several insect pests collected at using a pheromone trap placed in the archive storage room. With the exception of few localized problems, no active pest presence was observed. The D 10 values of mold contamination and reference mold ( A. niger ) were found to be 1.0 and 0.68 kGy, respectively. Based on these results, it can be concluded that an absorbed dose of 6 kGy is required to remove the contamination from the materials stored in the Ottoman Archives. [ABSTRACT FROM AUTHOR]

Volumes from an archive of the University of Milan showed whitish-grey discolouration putatively caused by microorganisms. Microscopic and viability assays proved that discolouration from two volumes were characterized by a marked presence of viable fungi, demonstrating that they were mainly biological in nature. Fungal sequences were phylogenetically most closely related to Eurotium , Aspergillus , Candida , Penicillium , Alternaria , Phaeosphaeria , Capnodiales and Pleosporales taxa. SEM analysis showed that Eurotium halophilicum is dominant on the two infected volumes. Viable airborne fungal loads near the two volumes were higher than recommended maximum values, demonstrating that airborne fungi could represent a source of risk. The airborne microbial community sampled in two different seasons was composed by fungi belonging in the genera Aspergillus , Candida and Eurotium . The detection of E. halophilicum also in the archival air indicated a possible source of contamination. Fluctuations of thermo-hygrometric values were also observed in the archive in the different seasons. The occurrence of white efflorescence on the stored volumes most likely depended on the lack of both a dusting programme and air-conditioning, and insufficient ventilation in the repository, and, on the hygroscopic behaviour of the binding materials used in the manufacture of the volumes. [ABSTRACT FROM AUTHOR]