Palaeofluvial geomorphology in southern Africa: a review

1998 ◽  
Vol 22 (3) ◽  
pp. 325-349 ◽  
Author(s):  
Evan S.J. Dollar

This article presents an overview of palaeofluvial geomorphology research in southern Africa. For the purposes of this article this includes South Africa, Zimbabwe, Namibia, Lesotho, Swaziland and Botswana. Although interest in fluvial systems has a long history in southern Africa, the scientific study of rivers was initiated by the discovery of the first alluvial diamond along the banks of the Orange River in 1867. Since then, significant progress has been made in unravelling the fluvial history of southern Africa from the early Archaean Ventersdorp Contact Reef River to modern channel process studies. The development of an understanding of palaeofluvial systems has occurred along two main lines. The first was alluvial diamond exploration work undertaken by the large mining houses. The second line was of a more ‘academic’ interest and included determining the impact of superimposition, tectonics, base level and climate changes. The review suggests that southern Africa fluvial systems have shown large-scale changes in drainage pattern, discharge and sediment yield and that these can be related to a complex set of causative factors including the geological template, the Jurassic rifting of Gondwana, tectonic episodes and climate change.

Author(s):  
Alisha Sett

This is a short history of the Nepal Picture Library (NPL), Nepal’s first large-scale digital photo archive encompassing over 50,000 photographs collected in less than a decade. It is a rare institution; a catalogued visual resource open to the public with scores of intimate family collections, the historic and the mundane captured over decades by photojournalists, and portraits made in photo studios across the country. The essay provides insight into the strength, scope and potential of this community-created archive. Founded and managed by Photo Circle, a platform for photography in Kathmandu, NPL has published books, done several exhibitions in museums and public spaces across Nepal, and exhibited their collections internationally. Tracing the origins and the impact of NPL through a series of interviews, the essays reveals not only the transformative power of their methods of public engagement but also the deep concern for visual culture fostered in their volunteers particularly among photographers serving as amateur archivists. Keywords: archive, Kathmandu, Nepal, oral history, public history


Author(s):  
Muhammad Nasir

This article discusses the history of Minangkabau in the 19th century AD. One of the themes of 19th century Minangkabau history is the Islamic reform movement promoted by religious groups commonly called the Padri movement. One of the central issues of the Padri movement was eradicating the habit of drinking alcoholism that occurred in Minangkabau society. The habit of smoking the drug that comes from boiling opium certainly indicates the existence of the drug on a large scale. Therefore, this article will present a picture of the opium trade in Minangkabau in the 19th century from upstream (providers) to downstream (dealers). It is hoped that this article will be useful as an explanation for the habit of smoking made in the Minangkabau community at that time.


2021 ◽  
Vol 12 ◽  
Author(s):  
Lucy M. Egan ◽  
Rainer W. Hofmann ◽  
Kioumars Ghamkhar ◽  
Valerio Hoyos-Villegas

Trifolium is the most used pastoral legume genus in temperate grassland systems, and a common feature in meadows and open space areas in cities and parks. Breeding of Trifolium spp. for pastoral production has been going on for over a century. However, the breeding targets have changed over the decades in response to different environmental and production pressures. Relatively small gains have been made in Trifolium breeding progress. Trifolium breeding programmes aim to maintain a broad genetic base to maximise variation. New Zealand is a global hub in Trifolium breeding, utilising exotic germplasm imported by the Margot Forde Germplasm Centre. This article describes the history of Trifolium breeding in New Zealand as well as the role and past successes of utilising genebanks in forage breeding. The impact of germplasm characterisation and evaluation in breeding programmes is also discussed. The history and challenges of Trifolium breeding and its effect on genetic gain can be used to inform future pre-breeding decisions in this genus, as well as being a model for other forage legumes.


Author(s):  
Luigi Rizzi

This chapter illustrates the technical notion of ‘explanatory adequacy’ in the context of the other forms of empirical adequacy envisaged in the history of generative grammar: an analysis of a linguistic phenomenon is said to meet ‘explanatory adequacy’ when it comes with a reasonable account of how the phenomenon is acquired by the language learner. It discusses the relevance of arguments from the poverty of the stimulus, which bear on the complexity of the task that every language learner successfully accomplishes, and therefore define critical cases for evaluating the explanatory adequacy of a linguistic analysis. After illustrating the impact that parametric models had on the possibility of achieving explanatory adequacy on a large scale, the chapter addresses the role that explanatory adequacy plays in the context of the Minimalist Program, and the interplay that the concept has with the further explanation ‘beyond explanatory adequacy’ that minimalist analysis seeks.


Author(s):  
D.V. Budianskyi

The characteristic features of I. Kavaleridze’s drama is considered in the article. It is noted that there are signs of the artist’s individuality, attraction to expressionist forms, artistic techniques characteristic for the art of sculpture: symbolism, monumentality, hyperbole. I. Kavaleridze was well versed in the drama laws, understood the specifics of the stage events construction, had a large arsenal of literary means, thanks to which the characters’ monologues and dialogues were extremely expressive and colorful. In his work, he implemented original solutions that were ahead of time. Therefore, many of the artist’s ideas and achievements received due recognition only after his death. I. Kavaleridze’s creative heritage covers a wide range of both purely artistic and general philosophical problems. Among them the formation of the era of modernism and its features in the Ukrainian art of the early XX century, the impact of revolutionary ideas on the work of the 1920s, the role of spiritual leaders of the Ukrainian people T. Shevchenko and G. Skovoroda in the formation of national consciousness, political and ideological pressure on figurative art language and the formation of a socialist-realist canon, etc. The analysis of the productions of I. Kavalerizde’s plays “The First Furrow” and “Gregory and Paraskeva” on the stage of the Mykhailo Shchepkin Sumy Theater of Drama and Musical Comedy in 1970-1972. The article notes that these plays were staged in Sumy for the first time in the history of Ukrainian theater. The premiere of “The First Furrow” (the play was called “Old Men”) took place on March 19, 1970. The figure of the national genius Hryhoriy Skov oroda was als o embodied for the first time on t he stage in Sumy in th e play “Hryhoriy and Paraskeva”. It premiered on October 21, 1972. I. Rybchynsky, Honored Artist of the USSR, performed the production. Creating generalized historical outlines of people’s life, features of life at that time, depicting psychological portraits of people in various, sometimes-dramatic collisions, in the productions of I. Kavaleridze’s plays on the Sumy stage the emphasis was on universal values such as virtue, love. The main character was the Ukrainian people, who nurtured such large-scale historical figures, gave them strength and wisdom for great achievements. Based on publications in periodicals of that time, memoirs of Ukrainian directors, the peculiarities of the director’s interpretation, stenographic and musical design of these plays on the Sumy stage are considered. Considerable attention is paid to the analysis of acting works in I. Kavaleridze’s plays. In particular, the peculiarities of the actor’s embodiment of the image of the national genius Hryhoriy Skovoroda on the stage are presented. It is noted that I. Kavaleridze’s plays, created in a difficult political, social and ideological context, are rightly considered to be highly artistic works of Ukrainian drama. Their staging was carried out on various theatrical stages, including Mykhailo Shchepkin Sumy Theater of Drama and Musical Comedy is an important page of national theatrical art.


2019 ◽  
Vol 5 (4) ◽  
pp. 695-702 ◽  
Author(s):  
Julien Morency-Laflamme ◽  
Theodore McLauchlin

Abstract Does ethnic stacking in the armed forces help prevent military defection? Recent research, particularly in Africa and the Middle East, suggests so; by favoring in-groups, regimes can keep in-group soldiers loyal. In-group loyalty comes at the cost of antagonizing members of out-groups, but many regimes gladly run that risk. In this research note, we provide the first large-scale evidence on the impact of ethnic stacking on the incidence of military defection during uprisings from below, using data on fifty-seven popular uprisings in Africa since formal independence. We find clear evidence for the downside: ethnic stacking is associated with more frequent defection if out-group members are still dominant in the armed forces. We find more limited support for the hypothesized payoff. Ethnic stacking may reduce the risk of defection, but only in regimes without a recent history of coup attempts. Future research should therefore trace the solidification of ethnic stacking over time.


2018 ◽  
Vol 13 (S349) ◽  
pp. 474-478
Author(s):  
Rosa M. Ros ◽  
Beatriz Garca

AbstractJust as in the past, the development of the natural sciences and in particular of astronomy has changed the history of humanity. If we think about the role of our discipline into the future, it shows its enormous power in the field of education, owing to the possibility of awakening interest in science in very varied audiences. Within the framework of the enormous progress made in the technologies related to astronomy, many of them of daily use, the role of the astronomer in the era of Communications acquires fundamental importance.In this presentation, we will try to make a journey through the different ways of presenting astronomical topics for different audiences over the last 100 years. In turn, we will show some specific achievements, associated with education programmes of the discipline. We discuss the impact produced by proposals that are both rigorous in terms of content, and also appeal to the development of the human being in an integral manner, within the framework of citizen science activities.For this research, we have taken into account the uninterrupted development of the NASE programme, which has performed 112 courses in 24 countries throughout the world and in different languages. NASE has involved 4966 secondary teachers in the last eight years.


1987 ◽  
Vol 29 (3) ◽  
pp. 33-54
Author(s):  
Owen Ellison Kahn

This Article Assesses the impact of the Cuban military on strategic, diplomatic and political relationships in southern Africa. It does not deal with why Cuba and its Soviet benefactor have interested themselves in the region, nor does it discuss Soviet influence on Cuban foreign policy. The aspects covered here include: (1) how Cuba and Angola fit into the complex pattern of regional relations in southern Africa; (2) an outline of the region's main territorial actors and guerrilla movements, along with a brief history of Cuban involvement in the area; (3) the response of South Africa to this foreign spoiler of its regional hegemony, (4) regional cooperation in southern Africa insofar as it is a response to South Africa's militancy in the face of international communism as represented in the region by Cuba; and (5) Cuba's effect upon the economy and polity of Angola and Mozambique.


1972 ◽  
Vol 35 (12) ◽  
pp. 719-724
Author(s):  
Donald G. Berger

The history of brewing and of brewing quality control technology is reviewed. Emphasis is placed on progress made in microbiological control, cereal development, technical knowledge of brewing chemistry, and packaging improvements. The current industry trend toward lighter brewing is related to flavor technology and product stability. Modern processing equipment and increased knowledge in the field of sanitation microbiology has resulted in sensitive quality control parameters. Included in sanitation consideration is the impact of the good manufacturing practices section of the food and drug regulations. The quality control of brewing is a dynamic, well-organized technology,


Author(s):  
Sabine Schmidtke

This book explores the history of Islamic theology, with particular emphasis on the doctrinal thought of all the various intellectual strands of Islam that were concerned with theological issues—including groups such as the Ismāʿīlīs and philosophers. It also discusses the inter-communal exchanges between Muslim, Christian, and Jewish thinkers over the course of the centuries to show how the theological thought of Jews and Christians intertwined with that of Muslims, and how Muslim theological thinking was influenced by Christian methodologies of speculative reasoning and doctrinal concepts. The rest of the book considers the impact of political and social history on Islamic theology. This introduction provides an overview of the foundations of Islamic theology and the advances that have been made in the scholarly study of Islamic theology.


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