No description available.

No description available.

The thesis is concerned with the study of Muslim treatment of Christians in Islam in general and in Islamic Jerusalem in particular. It conducts detailed research based on primary sources illustrating the juristic principles and rules. This formed the conceptual framework o f Muslim treatment o f non-Muslims which later became most useful in finding plausible explanations for ‘Umar and Salah al-Din’s treatment of Christians in Islamic Jerusalem. In order to provide more support for an accurate picture of ‘Umar and Salah al-Din’s treatment of Christians, the study further analyses some historical episodes of their treatment of Christians outside Islamic Jerusalem. The study discusses and analyses the steps taken by the Muslims towards the first and second conquest of Islamic Jerusalem, the situation of Christians in Islamic Jerusalem prior to, and the attitude of the Christian towards, both conquest, and the treatment of the Christians in Islamic Jerusalem after both conquests. As ‘Umar’s assurance of safety defines the status of Christians communities under the new Muslims rule and established the foundations of the way Muslims should follow when treating Christians in Islamic Jerusalem, the study examines and critically analyses the assurance using al-Tabari’s and the orthodox patriarchate versions. After discussing Salah al-Din’s preparation to liberate Islamic Jerusalem the study verifies the accounts of the communication between Salah al-Din and the Crusaders and analytically discusses the peace negotiations between Salah al-Din and Richard, the Lion-Heart King of England. Finally, the study concludes with a final discussion and summary of the findings, together with some critical remarks and recommendations. This study attempts to establish and develop new evidence for an academic debate concerning the Muslim treatment of Christians in Islamic Jerusalem, and to link the juristic principles with the historical facts relating to the Muslim treatment of Christians during ‘Umar and Salah al-Din’s era. The aim of this research is not only intended to make an in depth academic discussion, but also it is hoped that it is a significant contribution to and a valuable source of reference in this field.

During the 1920s and 1930s, science history achieved widespread cultural success, featuring prominently in universities, museums and international expositions throughout Britain, America and much of the rest of the world. Maintaining that the broad advance of interwar science history cannot be sufficiently understood without reference to its broader cultural context, it is the main contention of this thesis that both the extent and diversity of interest in science history can be more productively examined in light of a common cultural memory -- the memory of war. In the wake of the Great War science history stood as a site of salvage, allowing for both continuity with the past by proclaiming the cultural and historical universality of science and the possibility of a better future in its accepted positivity. Although like other aspects of the past science could be implicated in the failure of the pre-war order and in wartime atrocities, its history could still stand as a positive seat of cultural memory from which a post-war future might be built -- a lieu de memoire sympathetic to both reflection and reconciliation. In this the post-Great War rise of science history was essentially a post-Great War phenomenon. In the aftermath of war, science history emerged offering hope to a fractured and uncertain world.

No description available.

This thesis examines the dress and personal appearance of members of the middle and lower classes during Late Antiquity. Although members of this social stratum are often represented in Late Antique written sources, their clothing is rarely described in any detail, nor can artistic depictions be relied upon to illustrate their garments realistically. Information has therefore been assembled on garments and garment fragments from over 52 museum and archaeological collections, in order to assess the ways that cloth and clothing was made, embellished, cared for and recycled during this period. Together with knowledge gained by making and modelling exact replicas based on extant garments, this has enabled both the accurate depiction of the dress of ordinary people during this period, and the more precise interpretation of Late Antique descriptions and depictions of the clothed figure. By further assessing this information using different theoretical approaches including that of ‘object biography’, this thesis goes on to explore the ways in which cultural meaning is invested in clothing, and what this tells us both about the people who made, wore and used it, and about the society of which they were a part.

This research focuses on studying the microstructure of alloy 909, its susceptibility to oxidation at elevated temperatures (~700°C) and substrate coatings compatibility with high velocity oxy fuel (HVOF) sprayed oxidation resistance coatings. The characterization work involved in studying the microstructure of Incoloy 909 at three heat treated conditions namely solution treated condition (ST), commercially recommended solution heat treated and aged condition (STA), and solution treated and over aged condition (STOA) using optical microscopy, analytical scanning electron microscopy, and analytical transmission electron microscopy. The oxidation susceptibility were investigated at elevated temperatures of bare and coated alloy 909 substrates by subjecting test materials to isothermal and thermal cycle testing. The microstructure of alloy 909 in the ST condition showed only the presence of blocky Laves phase. The Laves phase in this alloy is a well known for its grain pinning effect that prevents excessive grain growth. In the STA condition, the microstructure revealed the presence of fine gamma prime, intergranular and intragranular Laves phase and occasionally gamma prime precipitates orienting in a platelet form ready to transition into the epsilon phase. In the STOA condition, the microstructure consisted of Laves phase in inter and intragranular locations, and a copious amount of Widmanstatten type epsilon phase. Incoloy 909 was observed to form oxide scales in both isothermal and cyclic thermal exposures, the oxide scale consisted of distinct outer and inner scales in the micrographs. The comparison base alloy (alloyl 718) used in this study surprisingly did not show any visible presence of oxide scale after 1000 hour exposure at ~700°C. Three coatings (CoNiCrAlY, 718 , and NiAl) were sprayed on alloy 909 and alloy 718 test coupons using the HVOF process to investigate the compatibility of the coatings with the substrate. The test results points out that all the coatings were compatible with 718 substrate and only one coating (NiAl) was found compatible with the Alloy 909 substrate, indicating that the coatings that are compatible with one substrate may not be compatible with another alloy within the same family of alloys.

This research focuses on studying the microstructure of alloy 909, its susceptibility to oxidation at elevated temperatures (~700°C) and substrate coatings compatibility with high velocity oxy fuel (HVOF) sprayed oxidation resistance coatings. The characterization work involved in studying the microstructure of Incoloy 909 at three heat treated conditions namely solution treated condition (ST), commercially recommended solution heat treated and aged condition (STA), and solution treated and over aged condition (STOA) using optical microscopy, analytical scanning electron microscopy, and analytical transmission electron microscopy. The oxidation susceptibility were investigated at elevated temperatures of bare and coated alloy 909 substrates by subjecting test materials to isothermal and thermal cycle testing. The microstructure of alloy 909 in the ST condition showed only the presence of blocky Laves phase. The Laves phase in this alloy is a well known for its grain pinning effect that prevents excessive grain growth. In the STA condition, the microstructure revealed the presence of fine gamma prime, intergranular and intragranular Laves phase and occasionally gamma prime precipitates orienting in a platelet form ready to transition into the epsilon phase. In the STOA condition, the microstructure consisted of Laves phase in inter and intragranular locations, and a copious amount of Widmanstatten type epsilon phase. Incoloy 909 was observed to form oxide scales in both isothermal and cyclic thermal exposures, the oxide scale consisted of distinct outer and inner scales in the micrographs. The comparison base alloy (alloyl 718) used in this study surprisingly did not show any visible presence of oxide scale after 1000 hour exposure at ~700°C. Three coatings (CoNiCrAlY, 718 , and NiAl) were sprayed on alloy 909 and alloy 718 test coupons using the HVOF process to investigate the compatibility of the coatings with the substrate. The test results points out that all the coatings were compatible with 718 substrate and only one coating (NiAl) was found compatible with the Alloy 909 substrate, indicating that the coatings that are compatible with one substrate may not be compatible with another alloy within the same family of alloys.

This research explores the potential of the submerged Palaeolithic archaeology of the southern North Sea for answering questions about how hominins occupied and adapted within their environments in these northerly latitudes throughout the Pleistocene. Recent coastal discoveries in East Anglia have demonstrated occupation as far back as ~1 million years, and yet our appreciation of the how, why and who of this occupation is missing a crucial piece of its puzzle; excluding these now-submerged landscapes is an active bias on our understanding, truncating the archaeological record. Having been subjected to repeated glaciations, trans- and regressions, the very processes that led to the terrestrial exposure of these areas have subsequently led to their neglect: the assumption that pre-LGM deposits will have been eroded or re-worked has prevailed. Recent work, however, has demonstrated the inaccuracy of this assumption, with evidence for extant Pleistocene-age deposits, landscape features and archaeology. Unlocking the clear potential of these submerged landscapes now relies on the approaches that we take to their investigation as, to-date, all archaeological finds have been entirely by chance. In order to move beyond this reactive style of archaeology, methodologies must be developed which tackle these areas in a more focused and reasoned way. The research undertaken throughout this PhD makes steps towards this. Starting from no baseline understanding of the nature of the existing resource, this work located, collated and analysed a prolific collection of 1,019 faunal specimens. Recovered by the 19th and 20th Century UK trawling industry, the development of historical methods has elucidated their locations and conditions of collection. Combining this locational information with species taxonomic evolution, the emergent spatio-temporal patterns provide a fresh understanding of the integrity of the extant deposits and unique opportunities for locating them on the seabed. These results are presented at a range of scales: • First, a broad-scale understanding of offshore regions across the southern North Sea which have demonstrated a dominance of cold-stage species from MIS 8-MIS 2. • Secondly, a local scale: linking faunal remains with seabed features in the near shore area off Happisburgh, identifying Early and early Middle Pleistocene assemblages related to exposures of the CFbF. • Finally, a discrete, high resolution area of seabed off the coast of Clacton has been identified. Through the collection of swath bathymetry, this area has shown the exciting correlation of Pleistocene seabed deposits and faunal remains. This research presents a significant move towards a proactive approach to these submerged landscapes and represents a step-change in our ability to understand, locate and engage with this undervalued archaeological resource.

In der Arbeit wird die historische Genese des UNESCO Welterbe-Programms zwischen 1960 und 1980 untersucht, insbesondere im Hinblick auf die Rolle der sogenannten Entwicklungsländer in diesem Prozess. Die UNESCO engagierte sich in vielen dieser Länder im Bereich des Kultur- und Naturschutzes, zu einem Zeitpunkt an dem der Aufbau eines nationalen Erbes für diese Länder von besonderer Bedeutung war. Die Schlüsselkonzepte des Welterbediskurses: Nationales Erbe, Denkmalpflege und Humanität, sind europäischen Ursprungs und westlicher Natur. In Bezug auf die Entwicklungsländer gestaltete sich die Etablierung eines nationalen Erbes und die Konstruktion eines historischen Narratives in den meisten Fällen als Zusammenarbeit zwischen internationalen Experten und nationalen politischen Eliten. Außerdem galt vielen der involvierten Akteure Kulturtourismus in Entwicklungsländern, angeregt durch Altertümer und wilde Natur, als entscheidende Einnahmequelle für Devisen. Identifikation, Institutionalisierung und Ausübung von Denkmalpflege zu finanzieren war vielfach Bestandteil von Entwicklungshilfeprogrammen und Äthiopien ist ein besonders anschauliches Beispiel für diese Praxis. Die Welterbekonvention wurde in Äthiopien ab 1977 mit großem Erfolg umgesetzt, gleichzeitig jedoch herrschte ein Mangel an entsprechend ausgebildeten Fachkräften – Archäologen, Denkmalpfleger oder Kunsthistoriker– im Land um die Vorhaben tatsächlich umzusetzen. Das wirtschaftliche Potential von Kulturtourismus wurde als vielversprechend gelobt und Gelder für Denkmalpflege und Artenschutz wurden teilweise nur unter der Prämisse der touristischen Erschließung bereitgestellt. Äthiopiens Rolle in der Entstehungsphase des Welterbe-Programms ermöglicht es, die komplexen Prozesse der Wissensproduktion und Politisierung zu verstehen, die den Welterbe-Diskurs so maßgeblich prägen. / This dissertation looks into the historic genesis of the UNESCO World Heritage Programme, and gives a special relevance to the role of so-called developing countries in this. UNESCO was highly active in the field of conservation in these countries at a time that the establishment and promotion of a national heritage was perceived desirable by them. National heritage, conservation and humanitarianism – key concepts promoted in the World Heritage discourse – are European in their origin and Western in their nature. In the context of so-called developing countries, the establishment of a nation’s heritage was often a hybrid effort of international experts and national political elites, serving evolving national narratives. On a more concrete level, many actors involved saw cultural tourism, stimulated by monuments and wildlife, as a crucial source of foreign currency for these countries. Funding the identification and institutionalisation of heritage, and the conservation and management of heritage sites, was a practise occurring within and alongside other forms of technical assistance and developmental aid. Ethiopia provides a particular vivid example of these events. Ethiopia implemented the World Heritage Convention in 1977, with great effort and success. At the same time, the country was confronted with a skills-shortage crisis, due to there being at that time few native Ethiopian archaeologists, conservators, or art historians. The economic potential of heritage tourism in Ethiopia was appreciated early on and funds for conservation were sometimes raised entirely based upon the argument that the conservation of monuments would foster tourism, and development. Understanding the links between Ethiopia and the World Heritage programme during it’s initial phase provides insights into the complex processes of knowledge production, and politics, that constitutes the World Heritage discourse.