88 research outputs found
On the Conflicting Estimations of Pigment Site Energies in Photosynthetic Complexes: A Case Study of the CP47 Complex
No full textCitation: Reinot, T., Chen, J. H., Kell, A., Jassas, M., Robben, K. C., Zazubovich, V., & Jankowiak, R. (2016). On the Conflicting Estimations of Pigment Site Energies in Photosynthetic Complexes: A Case Study of the CP47 Complex. Analytical Chemistry Insights, 11, 35-48. doi:10.4137/aci.s32151We focus on problems with elucidation of site energies (E-0(n)) for photosynthetic complexes (PSCs) in order to raise some genuine concern regarding the conflicting estimations propagating in the literature. As an example, we provide a stern assessment of the site energies extracted from fits to optical spectra of the widely studied CP47 antenna complex of photosystem II from spinach, though many general comments apply to other PSCs as well. Correct values of E-0(n) for chlorophyll (Chl) a in CP47 are essential for understanding its excitonic structure, population dynamics, and excitation energy pathway(s). To demonstrate this, we present a case study where simultaneous fits of multiple spectra (absorption, emission, circular dichroism, and nonresonant hole-burned spectra) show that several sets of parameters can fit the spectra very well. Importantly, we show that variable emission maxima (690-695 nm) and sample-dependent bleaching in nonresonant hole-burning spectra reported in literature could be explained, assuming that many previously studied CP47 samples were a mixture of intact and destabilized proteins. It appears that the destabilized subpopulation of CP47 complexes could feature a weakened hydrogen bond between the 13(1)-keto group of Chl29 and the PsbH protein subunit, though other possibilities cannot be entirely excluded, as discussed in this work. Possible implications of our findings are briefly discussed
Review: <i>The Robben Island Shakespeare</i> by Matthew Hahn
No full textBook Title: The Robben Island ShakespeareBook Author: Matthew Hahn(London: Bloomsbury Methuen Drama, 2017). ISBN-10: 147428387X / ISBN-13: 978-147428387
Nelson Mandela, Robben Island and the imagination of a new South Africa
No full textThis article is concentrating on Mandela and seek to show how, through his participation in debate and study, he evolved a particular approach to thinking about questions of the future South Africa. While Mandela's pre-Robben Island experiences were as important as the time he spent on the island in shaping and thinking. The author suggests that the island gave him a concentrated opportunity to think through the contradictions of South Africa. He came to a management of these contradictions with difficulty. He struggled with the question of modernity and its racial insistence and the demands of tradition and "cosmopolitanness" in facing questions of the past, present and future.
Nelson Mandela, Robben Island and the imagination of a new South Africa
No full textThis article is concentrating on Mandela and seek to show how, through his participation in debate and study, he evolved a particular approach to thinking about questions of the future South Africa. While Mandela's pre-Robben Island experiences were as important as the time he spent on the island in shaping and thinking. The author suggests that the island gave him a concentrated opportunity to think through the contradictions of South Africa. He came to a management of these contradictions with difficulty. He struggled with the question of modernity and its racial insistence and the demands of tradition and "cosmopolitanness" in facing questions of the past, present and future.
General Aspects of Fractures in Children
No full textA fracture is a partial or complete disruption of the continuity of bone or cartilage, due to mechanical forces exceeding the strength of the bone or cartilage to withstand these forces.Fractures are common in children. In a large Swedish study, the overall annual incidence of fractures in children was 2.1% (2.6 for boys; 1.7 for girls). Most fractures in children are the result of accidental trauma and conventional radiography (x-rays) is by far the preferred modality to diagnose them. This chapter discusses the anatomy of the bones, types of fractures and the terminology to describe fractures in an unequivocal way. In addition, fractures are discussed in the context of the trauma mechanism, the circumstances under which a fracture occurs and the age of the patient. Any discrepancies between the type of fracture and the alleged trauma mechanism (history as provided by the parents) should arise suspicion of non-accidental injury, where in general the younger the child, the greater the probability of inflicted injuries
Authenticity and the localness of heritage: emerging perceptions at World Heritage sites in Africa. Conversaciones con... Herb Stovel Num. 8 Año 5 (2019) julio-diciembre
No full textCultural heritage in Africa is viewed as a local phenomenon embedded in the rich and diverse Indigenous Knowledge Systems of local communities. It reflects the pioneering spirit and approaches of local communities in defining the localness and character of heritage. However, colonialism almost erased this localness in Africa through advancing the monumentality approach, further reinforced by the World Heritage concept until recent times. To address this issue, the authenticity concept was adopted as a way of restoring the localness and character of cultural heritage. Through this concept, the African cultural heritage provides local perspectives and insights into the discourse on authenticity. Robben Island World Heritage site (South Africa), offers cross-cutting local perspectives and insights on authenticity. This discussion emphasises understanding the dynamics between authenticity and inscription process, obtaining and safeguarding information sources, conservation, sustainable development and heritage curriculums. The paper recommends adopting a progressive and adaptive approach to broaden the concept of authenticity as a continuing process linked to the ever-changing cultural practices at the local, which gives birth to ‘current authenticity’. This reinforces the importance of emerging local perspectives on authenticity and local communities in the future implementation of World Heritage in Africa.Abungu, George (2014) Looking at the traditional heritage conservation and management systems: the case of the Rabai Sacred Kaya Forests, Kenya, Unpublished paper, Paper presented at the NARA+20 Workshop, July 2014, Cape Town, South Africa.Abungu, George O. (2015) “Introduction”, in: George Abungu (ed.), Traditional management systems at World Heritage sites in Africa, Midrand, South Africa, pp. 15-22.African World Heritage Fund (2014) Report of the Nara document workshop that was held in Cape Town, South Africa from 8 to 9 July 2014, Midrand, South Africa.Chirikure, Shadreck (2014) Nara document, heritage training and research: an African perspective, Unpublished paper, Paper presented at the NARA+20 Workshop, July 2014, Cape Town, South Africa.Chirikure, Shadreck, Tawanda Mukwende and Pascall Taruvinga (2015) “Post-colonial heritage conservation in Africa: perspectives from drystone wall restorations at Khami World Heritage Site, Zimbabwe”, International Journal of Heritage Studies 22 (2): 165-178.Entech (2003) Robben Island stone quarry: protection measures for quarry sites and stone wall. Consultancy report, Unpublished report submitted to Robben Island Museum, Cape Town, South Africa.Hart, Tim (2003) Conservation statement on proposed rehabilitation options, northwest quarry, Robben Island, Unpublished Report, Department of Archaeology, University of Cape Town.Jokilehto, Jukka and Joseph King (2000) Authenticity and integrity. Summary of ICCROM Position Paper, Amsterdam 1998 [https://whc.unesco.org/en/events/443/] (accessed on 25 March 2019).Jopela, Albino (2016) “The traditional custodianship system in Southern Africa”, in: George O. Abungu (ed.), Traditionalmanagement systems at heritage sites in Africa, Midrand, South Africa, pp. 23-55.Kigongo, Remigius and Andrew Reid (2007) “Local communities, politics and the management of the Kasubi tombs, Uganda”, World Archaeology 39 (3): 371-384.Lowenthal, David (1995) “Changing criteria of authenticity”, in: Knut Einar Larsen (ed.), Nara conference on authenticity - Conférence de Nara sur l’authenticité, Japan 1994, Proceedings, UNESCO World Heritage Centre/Agency for Cultural Affairs (Japan)/ICCROM/ICOMOS, Tapir Publishers, Trondheim, pp. 121-135.Mahachi, Godfrey and Ephraim Kamuhangire (2008) “Administrative arrangements for heritage resources management in sub-Saharan Africa”, in: Webber Ndoro, Albert Mumma and George Abungu (eds.), Cultural heritage and the law. Protecting immovable heritage in English-speaking countries of Sub-Saharan Africa, ICCROM Conservation Studies 8, ICCROM, Rome, pp. 43-51.Matenga, Edward (2004) Proposals for the conservation of a dry stone wall at the Blue Stone Quarry on Robben Island, Unpublished report, File 9/2/018/0004, SAHRA Archives.Mumma, Albert (2002) “Legal aspects of cultural landscape protection in Africa”, in: Cultural landscapes: the challenges of conservation, shared legacy. World Heritage Papers 7, UNESCO, Paris, pp. 156-159.Nara document on authenticity (1994) Nara document on authenticity [http://en.wikipedia.org/wiki/Nara_Document_on_Authenticity] (accessed on 25 march 2016).Ndlovu, Ndukuyakhe (2014) Authenticity and the application of the World Heritage Convention. Unpublished paper, Paper presented at the NARA+20 Workshop, July 2014, Cape Town, South Africa.UNESCO (2017) Operational Guidelines for the implementation of the World Heritage Convention, UNESCO, Paris.Robben Island Museum (2017) Draft Policy regulating Intellectual Property Rights (IPR) between Robben Island Museum and Ex-Political Prisoners. Robben Island Museum, Cape Town (South Africa), Unpublished document.Saouma-Forero, Galia (ed.) (2001) Authenticity and integrity in an African Context. Expert meeting, Great Zimbabwe, Zimbabwe, 26-29 May 2000, UNESCO, Paris.Stanley-Price, Nicholas and Joseph King (eds.) (2009) Conserving the authentic. Essays in honour of Jukka Jokilehto, ICCROM Conservation Studies 10, ICCROM, Rome.Stovel, Herb (2008) “Origins and influence of the Nara document on authenticity”, APT Bulletin 39 (2/3): 9-10.Taruvinga, Pascall and Souayibou Varissou (2013) Conservation practices at African World Heritage sites: the case of Kasubi Tombs and Great Zimbabwe, Midrand, South Africa - African World Heritage Fund. Unpublished Paper.Taruvinga, Pascall (2014) Conservation, Tourism and Social responsibility: Challenges of developing Robben Island World Heritage site as a sustainable ‘hybrid’ institution, Unpublished paper, Paper prepared for a Workshop on Heritage and Sustainable development, 2014, Morocco.Taruvinga, Pascall (2015) Local actors and their role in sustainable development at World Heritage sites in Africa, the case of Robben Island World Heritage Site, Cape Town, Robben Island.Taruvinga, Pascall (2017) Living heritage, contestations and conservation: the case of Robben Island World Heritage Site, South Africa, Cape Town, South Africa, Unpublished paper.Taruvinga, Pascall (2017) Building robust heritage industries: Making heritage responsive to socio-economic needs of African State Parties, Unpublished paper, Paper presented during the International Conference on African Cultures (ICAC 2017), National Art Gallery of Zimbabwe, 11-13 September 2017, Harare, Zimbabwe.Taruvinga, Pascall (2018) Building bridges between theory and practice; aligning university curriculums to the interdisciplinary needs of World Heritage sites: case of Robben Island World Heritage site, Unpublished paper, Paper Presented at the UNESCO “Workshop World Heritage and Educational Institutions in Africa”, 19-21 April 2018, Great Zimbabwe, Zimbabwe.Von Droste, Bernd (2012) “World Heritage and globalization: UNESCO’s contribution to the development of global ethics”, in: Marie-Theres Albert, Marielle Richon, Marie José Viñals and Andrea Witcomb (eds.), Community development through World Heritage, World Heritage Papers (31), UNESCO, Paris, pp. 10-15
Brutus, Mandela, Robben Island, and Rugby : The Unavoidable Intersection of Sport, Politics and Society in South Africa
No full text31 p.The thesis of this essay is that the intersection of sport, politics, and society is unavoidable as sport often plays a key role in the popular identity of communities and their larger societies. In South Africa, sport took on a particularly sharp political role because of Apartheid. It was used by white South Africa as a source of white nationalism for many years and so for black South Africans it became a key site of anti-apartheid struggle. The author had the good fortune of having access to the Dennis Brutus Papers, held in the archives of Northwestern University, where Dr. Brutus spent much of his years in exile. Dr. Brutus, was the most important South African activist in the struggle against what became known as apartheid sport. With the papers of Dr. Dennis Brutus, the author illustrates the key role that sports played in the struggle against apartheid. He also examines the importance of Rugby in the history of racism in South Africa and President Nelson Mandela's desire to change that with the 1995 World Cup. The author reveals important lessons from Robben Island, the infamous political prison of Nelson Mandela and how sport played a key role there among the inmates as well
Product communication and information. The product as a medium in marketing communications
No full textIndustrial Design Engineerin
Skyscape of an Amazonian Diaspora: Arawak Astronomy in Historical Comparative Perspective
No full textThe title of this article “Arawak Astronomy” suggests that the research matter concerns the astronomy of an already well-defined ethnographic entity. This however does not do justice to the complexities of Arawak (pre)history. This contribution aims to discuss and connect the available historical and ethnographic data on Arawak astronomies as gathered by the author (Jara 2000), with the most recent research on the archeology and comparative linguistics of the Arawak diaspora. The article argues that Arawak astronomy has to be related to the cultural and sociopolitical continuities and discontinuities of the Arawak diaspora throughout the lowlands of tropical South America. This article recognizes the need to consider Arawak astronomy has an object to be discovered and explained within its local and regional contexts. Notwithstanding these remarks, based on a sustained examination of ethnohistorical and ethnographic sources, this article proposes that Arawak astronomy can be characterized by at least four elements: firstly, a horizon system of observation which combines the observation of the solar solstices and equinoxes with the near heliacal and near cosmic rising or setting of at least seven star groups – the Pleiades, the Hyades, the upper stars of the constellation of Scorpius (including a Sco), Corvus, the Belt of Orion, several stars near Sirius, and the Milky Way. Secondly, the association of the rising and setting of these star groups with the seasonal cycle, mainly with the start and/or of the end of rainy and dry seasons. Thirdly, the widespread association of the stars of the year (most commonly the Pleiades but sometimes Orion or the head of Scorpius) with the beginning of the agricultural cycle and consequently with the end of the heavy rains announcing the time to plant the new fields. The last and fourth commonality are the inscriptions or markings of the origin of the stars in the local landscape, lakes, mountains, and other salient landscape features. This chapter examines specially the relationships between the astronomical notions with the subsistence activities and the symbolic appropriation of the landscape. It focuses on the case of the coastal and central Arawak of the Guianas
Launch Strategies and New Product Performance - An empirical international study
No full textIndustrial Design Engineerin
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