<p>This essay is a product of the author’s interest in silent films from Soviet, especially, documentary films. Before the 1920’s documentary filmmaking had mostly been limited to newsreels and short scenes. Only occasional feature-length documentaries had been made. During the 1920s, documentary film achieved new status, not only because of its use as propaganda; it was also identified as artistic cinema. Discussions how to use this genre were taking place all over Europe, and in the US. In France, many different journals on cinema were started. In Soviet the discussions later became politicised. It was a good climate for groundbreaking cinema, and Esfir Shub was one of the film pioneers in Soviet. The ambition with the essay is to give Esfir Shub theoretical approach to non-fiction film a greater acknowledgement. The thesis is how Esfir Shub combines titles and pictures with cutting in The Fall of the Romanov Dynasty (1927) and to theorise the film with Shub’s own conceptual ideas. The method is close reading of the film and the articles written by Shub. The conclusions made by the author, is that Shub uses titles and pictures, in a dynamic cross-cutting between the oppressor and the oppressed. She is faithful to her own theories. She is only using authentically material and not played scenes; otherwise she would distort historical facts. The montage is built in two different ways. Firstly Shub use an ironic tone in the titles when she introduces the oppressors from the old regime, and comment these images widely. Secondly she uses pictures of typical symbols of capitalism and does not need to comment in such matter as earlier, because the film material she had captured speaks for itself.</p>

This dissertation considers ten years in the life of one word. Between 1918 and 1928, khronika—the Russian word that describes newsreel filmmaking—became the site of extensive debates about the aesthetics and social responsibilities of the documentary film. Following the February revolution of 1917, khronika was promoted as the privileged record keeper of a new historical era, catalyzing a period of unprecedented formal innovation. During this period, Soviet documentarians transform the relationship between text and image, developing a film style that integrated verbal and visual material. In newsreel journal such as Kino-Pravda, images cease to be passive illustrations accompanying text and are for the first time treated as equally capable of delivering propositional content. Like other modernist art practices, khronika develops in dialogue with attempts to define its essence as a film genre and its medium specificity. Falling under the influence of competing strains within Constructivism, khronika is first conceived as a purely visual medium and then again as a purely factual one. Made up of seventeen variations on the social, political, and aesthetic aspects of khronika's evolution, the dissertation makes a crucial revision of documentary history. Rather than focus on the first instances of non-fiction films that adapt the narrative conventions of fiction film, Khronika examines the origins of documentary as an informational medium. Drawing on film theory, history of science, and philosophy, Khronika asks what it was that film learned to express during the first tumultuous decade when documentaries ceased to be windows onto a world and become the active interpreters of the reality captured by motion picture cameras. / Slavic Languages and Literatures

This essay is a product of the author’s interest in silent films from Soviet, especially, documentary films. Before the 1920’s documentary filmmaking had mostly been limited to newsreels and short scenes. Only occasional feature-length documentaries had been made. During the 1920s, documentary film achieved new status, not only because of its use as propaganda; it was also identified as artistic cinema. Discussions how to use this genre were taking place all over Europe, and in the US. In France, many different journals on cinema were started. In Soviet the discussions later became politicised. It was a good climate for groundbreaking cinema, and Esfir Shub was one of the film pioneers in Soviet. The ambition with the essay is to give Esfir Shub theoretical approach to non-fiction film a greater acknowledgement. The thesis is how Esfir Shub combines titles and pictures with cutting in The Fall of the Romanov Dynasty (1927) and to theorise the film with Shub’s own conceptual ideas. The method is close reading of the film and the articles written by Shub. The conclusions made by the author, is that Shub uses titles and pictures, in a dynamic cross-cutting between the oppressor and the oppressed. She is faithful to her own theories. She is only using authentically material and not played scenes; otherwise she would distort historical facts. The montage is built in two different ways. Firstly Shub use an ironic tone in the titles when she introduces the oppressors from the old regime, and comment these images widely. Secondly she uses pictures of typical symbols of capitalism and does not need to comment in such matter as earlier, because the film material she had captured speaks for itself.

Context. The cryptographically secure pseudo-random number generator Blum Blum Shub (BBS) is a simple algorithm with a strong security proof, however it requires very large numbers to be secure, which makes it computationally heavy. The Graphics Processing Unit (GPU) is a common vector processor originally dedicated to computer-game graphics, but has since been adapted to perform general-purpose computing. The GPU has a large potential for fast general-purpose parallel computing but due to its architecture it is difficult to adapt certain algorithms to utilise the full computational power of the GPU. Objectives. The objective of this thesis was to investigate if an implementation of the BBS pseudo-random number generator algorithm on the GPU would be faster than a CPU implementation. Methods. In this thesis, we modelled the performance of a multi-precision number system with different data types; to decide which data type should be used for a multi-precision number system implementation on the GPU. The multi-precision number system design was based on a positional number system. Because multi-precision numbers were used, conventional methods for arithmetic were not efficient or practical. Therefore, addition was performed by using Lazy Addition that allows larger carry values in order to limit the amount of carry propagation required to perform addition. Carry propagation was done by using a technique derived from a Kogge-Stone carry look-ahead adder. Single-precision multiplication was done using Dekker splits and multi-precision modular multiplication used Montgomery multiplication. Results. Our results showed that using the floating-point data type would yield greater performance for a multi-precision number system on the GPU compared to using the integer data type. The performance results from our GPU bound BBS implementation was about 4 times slower than a CPU version implemented with the GNU Multiple Precision Arithmetic Library (GMP). Conclusions. The conclusion made from this thesis, is that our GPU bound BBS implementation, is not a suitable alternative or replacement for the CPU bound implementation.

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