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High-energy physics experiments aim to deepen our understanding of the fundamental structure of matter and the governing forces. One of the most challenging aspects of the design of new experiments is data management and event selection. The search for increasingly rare and intricate physics events asks for high-statistics measurements and sophisticated event analysis. With progressively complex event signatures, traditional hardware-based trigger systems reach the limits of realizable latency and complexity. The Compressed Baryonic Matter experiment (CBM) employs a novel approach for data readout and event selection to address these challenges. Self-triggered, free-streaming detectors push all data to a central compute cluster, called First-level Event Selector (FLES), for software-based event analysis and selection. While this concept solves many issues present in classical architectures, it also sets new challenges for the design of the detector readout systems and online event selection.
This thesis presents an efficient solution to the data management challenges presented by self-triggered, free-streaming particle detectors. The FLES must receive asynchronously streamed data from a heterogeneous detector setup at rates of up to 1 TB/s. The real-time processing environment implies that all components have to deliver high performance and reliability to record as much valuable data as possible. The thesis introduces a time-based data model to partition the input streams into containers of fixed length in experiment time for efficient data management. These containers provide all necessary metadata to enable generic, detector-subsystem-agnostic data distribution across the entire cluster. An analysis shows that the introduced data overhead is well below 1 % for a wide range of system parameters.
Furthermore, a concept and the implementation of a detector data input interface for the CBM FLES, optimized for resource-efficient data transport, are presented. The central element of the architecture is an FPGA-based PCIe extension card for the FLES entry nodes. The hardware designs developed in the thesis enable interfacing with a diverse set of detector systems. A custom, high-throughput DMA design structures data in a way that enables low-overhead access and efficient software processing. The ability to share the host DMA buffers with other devices, such as an InfiniBand HCA, allows for true zero-copy data distribution between the cluster nodes. The discussed FLES input interface is fully implemented and has already proven its reliability in production operation in various physics experiments.
This book deals with love, marriage/family, and witchcraft issues but its central question remains that of whether love without understanding is love. Tackling love from much broader and interdisciplinary angles than just the love-making that most love stories usually focus on, it advances the duo of love and understanding as the foundation of any successful marriage/family. Although Momany is blessed with often easily finding this rare duo, the tensions of belonging in Cameroon have been constant and persistent challenges. The book uniquely raises and brings new and ground-breaking perspectives on its subject-matters, obviously leaving many social scientists with much to do further research on.
Feathers in Reverse
(2014)
Feathers in Reverse is the ideal gift for a loved one who is scared of poetry. It engages and immerses readers with the luring subtlety of a serpent. Themes treated include good and evil, heaven and earth, man and woman, birth and death, urbanism and rural life, wealth and poverty. As much as the poet highlights salient issues and conflicts in everyday life, he suggests answers to burning problems as well. A common thread runs through the over 300 poems feathered and featured in this collection. The notion of the 'feather' is cross-cultural. It reminds us of the feather used as a pen in ancient Europe and the 'red feather' that is stuck on the caps of African notables as a mark of distinction. Feathers in Reverse is a magic pudding to be sampled, shared and indulged.
This landmark volume brings together a very rich harvest of forty critical essays on Cameroon literature by Cameroon literary scholars. The book is the result of the Second Conference on Cameroon Literature which took place at the University of Buea in 1994. The Buea conference was motivated by a determination to look at Cameroon literature straight into its face and criticize it using literary criteria of the strictest kind. Gone were the times when the criticism was complacent because it was believed that a nascent literature could easily be stifled by application of rather strict cannons of literary criticism. Both writers and critics had a lot to say. Subjects dealt with ranged from general topics on literature, survival and national identity, through specialized articles on prose, poetry, drama, translation, language, folklore, children's literature, Journalism and politics. It is the hope of the volume editors that the publication of these papers will instigate the kind of actions that were recommended and that the prolific nature of Cameroon literature will equally give rise to a prolific and robust criticism.
This book addresses Cameroon's culture, education and language policies since independence, scholarship on and vigorous debate about them, their bearings on different visions of national development, and their place in the political struggle between autocracy and democracy since 1990. A synoptic view of half a century's key experiences, issues and fault lines emerges.
Nemeso - a four eyed man-lived in southeastern Zimbabwe in the mid-17th century. Stories about him are widely known by the Duma in southeastern Zimbabwe as he left a legacy, a delicious dish - of edible stinkbugs locally named harurwa. These insects, believed to be a gift to Nemeso by the ancestors, thrive in a grove (jiri) where no one has been allowed to meddle since the time of Nemeso, the medium through whom the stinkbugs were gifted to the living by the living-dead. The insects are a source of livelihood for the Duma people and for people beyond, and serve as a drive for forest conservation in the area. The wealthy stories of Nemeso's life have been passed on through oral tradition. This book, generated from an ethnographic reconstitution in southeastern Zimbabwe, documents the stories in a lively and fascinating thirst quenching manner.
Education in Tanzania in the Era of Globalisation Challenges and Opportunities is a product of papers presented at a National Education Conference held in Dodoma, Tanzania in November 2016 and organised by the Aga Khan University-Institute for Educational Development, East Africa (AKU-IED-EA). At present, Tanzania's development direction is guided by Vision 2025, which aims to achieve a high quality livelihood for its people be attainment of Vision 2025 will depend largely on rapid socio-economic development based on several social and economic pillars including, most importantly, education. Clearly, for Tanzania, the scope and quality of education remains the single most important prerequisite to the attainment of Vision 2025 and the 17 Sustainable Development Goals (SDGs). The individual chapters in this publication, and their collective thrust, discuss the challenges in the education system in good faith and in the spirit of cooperation and collaboration guided by the belief that it is not the responsibility of the Government alone to see how these can be addressed. AKU IED EA has identd this as the responsibility of all well-meaning corporate bodies and citizens, and initiated thst conference of its type as its contribution to thore conference, as well as the publication, has to be seen as a model of good practice for universities in terms of sharing knowledge, experience, and practice with other stakeholders who are not in the academy, and more so, with politicians as well as government policy planners. The various authors of Education in Tanzania in the Era of Globalisation Challenges and Opportunities discuss issues within the context of the Tanzanian political economy against thects of globalization and seek to initiate a new kind of debate that is long overdue; a debate aimed at charting out appropriate strategies whose objective is to improve the quality of education in Tanzania so that it becomes a useful vehicle in enhancing processes of social change, transformation and development.
This book is the celebration of one man's vendetta against a cancerous regime that thrives on the rape of democracy and human rights abuses. Lapiro de Mbanga, born Lambo Sandjo Pierre Roger on April 7, 1957 was a conduit for social change. He fought for change in his homeland and died fighting for change in Cameroon. Lapiro believed in the innate goodness of man but also had the conviction that absolute power corrupts absolutely. He was noted for contending that 'power creates monsters.' His entire musical career was devoted to fighting the cause of the downtrodden in Cameroon. He composed satirical songs on the socio-economic dysphonia in his beleaguered country. In his songs, he articulated the daily travails of the man in the street and the government-orchestrated injustices he witnessed. As a songwriter, Lapiro de Mbanga distinguished himself from his peers through bravado, valiance and the courage to say overtly what many a Cameroonian musician would only mumble in the privacy of their homes. Lapiro's anti-establishment music led to his arrest and imprisonment in September 2009 for three years. Released from prison on April 8, 2011 he was later given political asylum by the USA. On September 2, 2012 Lapiro relocated with some members of his family to Buffalo in New York where he died on March 16, 2014 after an illness. His revolutionary music and fighting spirit live on.
This book brings to light work done in the area of gender with a penchant to language within the Cameroonian context. It looks at different domains of gender study where language is a significant variable. It is the very first edited collection that examines language and gender side by side. Contributors draw richly on their current theoretical leanings and on the current gendered discourses within the Cameroonian context to interrogate the interconnections between gender and language through social relationships and interactions. This is a pluri-disciplinary study informed by perspectives from anthropology, sociology and applied linguistics. The book hinges on gender, discourse and social change in historical perspective. Gender and language studies contribute to knowledge of new problems in view of a better understanding of relations between women and men, and its amelioration in the social space. Gender and language studies necessarily incorporate gender and discourse studies. Discourse serves as a unifying factor to these diverse disciplines which bring external support to pure linguistic studies, not only to deepen the understanding of gender but more so to describe how it works in discourse. Here, discourse is seen as being at the centre of gender ideology.
Colonial Heritage, Memory and Sustainability in Africa : Challenges, Opportunities and Prospects
(2015)
This book serves as a drive and medium for constructive analysis, critical thinking, and informed change in the broad area of cultural heritage studies. In Africa, how to overturn the gory effects and reverse the wholesale obnoxious and unpardonable losses suffered from the excruciating experience of colonialism in a manner that empowers the present and future generations, remains a burning question. Colonial and liberation war heritage have received insignificant attention. The relevance, nature, and politics at play when it comes to the role of memory and colonial heritage in view of nation-building and sustainability on the continent is yet to receive careful practical and theoretical attention and scrutiny from both heritage scholars and governments. Yet, colonial heritage has vast potentials that if harnessed could reverse the gargantuan losses of colonialism and promote sustainable development in Africa. The book critically reflects on the opportunities, constraints, and challenges of colonial heritage across Africa. It draws empirical evidence from its focus on Zimbabwe, South Africa, Nigeria, Ghana, Zambia, and Mozambique, to advance the thesis that cultural heritage in Africa, and in particular colonial heritage, faces challenges of epic proportions that require urgent attention.