Analysis of ancient mycolic acids by using MALDI TOF MS: response to “Essentials in the use of mycolic acid biomarkers for tuberculosis detection” by Minnikin et al., 2010

The mycobacterial cell wall is consists of several long chain lipid and glycolipid components. Mycolic acids are major and unique fraction of the cell envelope of mycobacteria that include the ancient causative agents of tuberculosis and leprosy. The analytical investigation of these lipid biomarker residues is one of the most promising perspectives in the field of molecular paleopathology. Recently published in this journal, Minnikin et al. present a systematic critique of the MALDI TOF MS analysis for determination of ancient mycolic acids, focusing on our previous paper. In this study, our mass spectrometric investigations by commonly used 2,5 DHB matrix were presented with our comments to the critique authors. On the base of our previous and recent mass spectrometric results we have to realize that the clinical protocols and standards cannot directly be used for the biomolecular paleopathological investigations. The applicability of the recent mycobacterial and clinical results is very limited in the biomolecular archaeology, thus the recent scientific results and protocols should be adapted carefully to bioarchaeological sciences.     

Estimating original flake mass from 3D scans of platform area

This study confirms the increased capacity to predict flake mass that arises from more accurately measuring surface area in three dimensions using a digital scanner. We also reveal the existence of significantly different relationships between platform area and flake mass for flakes with different platform types and ventral and dorsal morphologies. These different relationships between platform surface area and mass have not been previously identified, and reveal the complexity of platform/mass relationships. Using multivariate regression of 3D platform surface area and external platform angle we improve the accuracy of predictions of original flake mass. We propose a method for studying reduction intensity on retouched flakes, based on comparing predictions of the initial mass of the flake with measurements of the mass following retouching to estimate the amount of mass removed through retouching. We name this approach the Initial-/Terminal-Mass Comparison, or ITMC. Our experiments demonstrate that the capacity of the 3D platform scans to predict flake mass, and by implication the capacity of the ITMC to estimate mass loss, rivals or exceeds the capacity demonstrated for existing reduction measures.     

Epistemic Ignorance and the Indonesian Killings of 1965–1966: Righting the Wrongs of the Past and the Role of Faith Community

ABSTRACT

This study demonstrates how ignorance works in the Indonesian massacres of 1965–1966. This atrocity, which claimed roughly five hundred thousand lives, is one of the most forgotten human tragedies of the twentieth century. For many years, the massacres were hidden from public view. Ignorance was reinforced by the New Order under the presidency of Suharto. Drawing on contemporary political philosophers’ studies on the epistemology of ignorance, I contend that ignorance, like knowledge, has structures, criteria, and practices. Ignorance, thus, is not merely a “lack of knowledge” or a state of not knowing, but epistemic and political. By appropriating the epistemology of ignorance, I seek to show how the Indonesian people remember the historical wrongs and how Christian theology provides resources for right remembrance. To confront the epistemic ignorance of the Indonesian mass killings, I argue that the churches must assert their identity as the community of memory and lament.     

A Tile Pavement from the Queen's Chamber,Clarendon Palace,Dated 1250-2

This article undertakes an object-focused study of a single work of art of great material and visual complexity: the Wallace Collection pax. This object stimulates an important discussion on how the making, materials and form of a work of art are fundamental to unravelling the object’s function and meaning for a contemporary audience. In placing at the core of the object a rare example of a late medieval amber Vera icon, the Wallace Collection pax also opens up a wider discussion on the nature and popularity of amber as a material of artistic expression in the later Middle Ages. In basing this article on the physical and material history of the work of art, I hope to illustrate the importance of going back to first principles when undertaking object-based research, and I intend to highlight the complex interaction between material and form in late medieval art.     

Identifying wine markers in ceramics and plasters using gas chromatography–mass spectrometry. Experimental and archaeological materials

The identification of the organic residues preserved in archaeological materials yields good insights into understanding food production, trade and consumption. Wine is one of the most important beverages produced, traded and consumed in the Mediterranean area. Consequently, it is important to identify its presence in ancient materials. Nevertheless, the identification of wine markers is still an object of discussion. We present here the results obtained from analysing different materials using gas chromatography/mass spectrometry (GC/MS), which allowed for the identification of tartaric acid and other markers of wine. The method was first tested on experimental and traditional materials that have been used until recently to store and/or produce wine and was then used for investigating archaeological materials. The experiments also involved the degradation of wine through cooking, drastic heating and burial for seven years. The results from the analysis of ceramic and plaster materials are discussed.     

试论清末民初大众媒体对女子学校教育的影响

清末至民初各种大众媒体关注女子解放问题,不仅全方位抨击当时为女子学校教育兴起造成困难的缠足风俗,帮助广大妇女解放双足,并积极报道西方女子的学校教育情况,大力提倡新式女学,为女子学校宣传助威,还利用舆论的力量逐步推进女子学校教育的合法化、正规化。大众媒体的宣传为女子教育的发展奠定了基础和铺平了道路,对女子学校的教育影响巨大而深远。     

Accommodating ‘design’: introducing the Western concept into Soviet art theory in the 1950s–60s

This article investigates the background of Soviet industrial design in Soviet art theory. Instead of considering design's interconnection with technology and science, or with consumption and everyday life, the author traces its conceptualisation as a new artistic phenomenon. Using archival records of professional discussions, polemical articles in the art press and design projects, the author looks at how industrial design was incorporated into the Soviet order of things. She concludes that accommodation of the Western model was the way to reform the system of socialism from inside, typical for the Soviet intelligentsia of the 1960s.     

Sport and society in Italy today

Summary

In ‘Itinerary’ Patrick McCarthy provides an introduction to the four articles that examine the connections between sport, politics, business and contemporary culture in Italy. Noting that mass participation in sport has been closely related to modernization, McCarthy argues that the forms of contemporary mass sport reflect the particular cultural, political and economic conditions of each European society. In Italy these made soccer and cycling the most popular mass sports by 1945.

Patrizia Dogliani’s article ‘Sport and Fascism’ examines the development of mass sport in Italy from the late nineteenth century, showing the critical role played by the Fascist regime, which rapidly expanded public sports facilities while the language of politics and combat permeated the vocabulary of sport in Italy in the 1920s and 1930s. Initially the emphasis was on international competition as a symbol of national virility, but following the success of Germany and the USA in the 1936 Olympics the regime’s search for consensus placed new emphasis on recreational aspects. The institutional and administrative organization of sport established in the 1930s remained in place in Italy, however, until more recendy.

In ‘Itinerary 2’ McCarthy examines the roles of the boxer Carnera from Friuli and the racing driver Tazio Nuvolari as sporting heroes of Mussolini’s Italy and in ‘Itinerary 3’ shows how the struggles between Catholic Italy and Communist Italy were personified in the rivalry between the cyclists Gino Bartali and Fausto Coppi in the post-war period.

In ‘Itinerary 4’ he asks why soccer had by the 1970s overtaken cycling as Italy’s most popular sport. That theme is examined in greater detail by Nicola Porro and Pippa Russo, whose article reconstructs the ‘hybridization of sport, mass media and politics’ in Italy in the 1990s. Its central focus is Silvio Berlusconi, the self-made media tycoon who founded Fininvest in the 1970s, acquired AC Milan in 1986, and by 1994 controlled a media empire that enabled him to found a new political party (Forza Italia) and become Italy’s Prime Minister albeit for less than a year. Porro and Russo examine the ways in which Berlusconi’s roles in the world of the media and professional soccer have changed both Italian politics and Italian sport.

In ‘Itinerary 5’ McCarthy sets the example of Berlusconi in the context of the integration of soccer and mass media, the commercialization and politicization of sport at a global level in the last decade. These issues are developed in greater detail in Emanuela Poli’s article, ‘The revolution in the televised soccer market’, which emphasizes the critical role that has been played by soccer and soccer clubs in the development of the new media empires based on digital pay-per-view TV and the sale of sporting events in the 1990s. This has left control of the sport (in terms of who can watch and when) in the hands of major international communications moguls like Berlusconi and Rupert Murdoch.

‘Itinerary 6’ links the fragmentation of collective myths like the national soccer championships to the decline of the nation state, and surveys the situation of other sports in Italy (the Americas Cup, skiing, rugby football. Formula 1 motor racing and the gymnasium). The latter is the subject of the final article by Roberta Sassatelli on ‘The commercialization of discipline: keep-fit culture and its values’ which explores the social and cultural meanings attached to the growing vogue for fitness clubs and the shaping of the ideal body in contemporary Italy.     

SLIDING MODE CONTROL OF BUILDING FRAMES UNDER RANDOM GROUND MOTION

A sliding mode control theory is presented to control the response of building frames to predominant frequency components of the random ground motions. The control algorithm is derived based on a sliding surface which is a function of a state vector containing the structural displacements and velocities and variables that dictate the predominant frequency components of the excitation. Three control mechanisms are employed to control the response of the building frame namely, (1) active mass damper (AMD) placed at the top storey of the building, (2) an actuator placed at a storey level and, (3) an actuator placed at a storey level along with a tuned mass damper (TMD) situated at the top storey level. Responses obtained by the proposed control strategy are compared with those obtained by the linear feedback and feedforward-feedback control strategies (conventional control strategies). Also, they are compared with those obtained by the sliding mode control strategy that considers in its state vector only structural displacements and velocities. It is shown that the proposed control strategy generally performs better than other control strategies in the higher range of control forces. For the lower range of control forces, conventional control strategies are more effective.