Порівняльний аналіз систем для ранжирування українських наукових періодичних видань та їхніх складових

Проаналізовано відомі бази даних наукових публікацій і рейтинги наукових публікацій, окремих науковців, наукових журналів та окремих галузей науки. Запропоновано інфологічну модель і бізнес-правила бази даних наукових публікацій. На її основі запропоновано метод розрахунку вебометричного рейтингу наукових публікацій, авторів, організацій, журналів.Проанализированы известные базы данных научных публикаций и рейтинги научных публикаций, отдельных ученых, научных журналов и отдельных направлений науки. Предложена инфологическая модель и бизнес-правила базы данных научных публикаций. На ее основе предложен метод расчета вебометрического рейтинга научных публикаций, авторов, организаций, журналов.The known databases of scientific publications and the rating of scientific publications, certain scientists, scientific journals and certain fields of science are analyzed. The infological model and the business rules of scientific publications database are proposed. The computing method of webometrics rating of scientific publications, authours, journals and organizations is proposed

Coupling JOREK and STARWALL for Non-linear Resistive-wall Simulations

The implementation of a resistive-wall extension to the non-linear MHD-code JOREK via a coupling to the vacuum-field code STARWALL is presented along with first applications and benchmark results. Also, non-linear saturation in the presence of a resistive wall is demonstrated. After completion of the ongoing verification process, this code extension will allow to perform non-linear simulations of MHD instabilities in the presence of three-dimensional resistive walls with holes for limited and X-point plasmas.Comment: Contribution for "Theory Of Fusion Plasmas, Joint Varenna - Lausanne International Workshop, Villa Monastero, Varenna, Italy (27.-31.8.2012)", accepted for publication in Journal of Physics Conference Serie

The Artist-Shaman and the \"Gift of Sight\"

Throughout the history of art the role of the artist has been compared to the role of the shaman. This is because the artist’s role has always been one of mediator, transformer and most prominently visionary. The role of both the artist and shaman has always been to stand between two worlds: that of the visible and the invisible. The viewers, or the community in the case of the shaman, entrust the artist to go forth into the realm of the invisible and return with a gift: the invisible transformed into the visible. Traditionally, many artists associated with shamanism such as Joseph Beuys, Max Ernst, Leonora Carrington and later Matthew Barney, have been leaders, idealists, heroes of mythic proportions, artists who return with this gift: a vision or sight to follow. But a different breed of artist associated with shamanism also exists: an ambivalent artist-shaman, a shifty and unreliable character of dubious motivations, who appears to offer the viewer a vision or sight and then throws it back in their face, makes them decide. This is the role that Hany Armanious, John Bock, Carla Cescon, Marcus Coates, Mikala Dwyer, Steinar Haga Kristensen, Jonathan Meese, Paul Thek, Justene Williams and myself have taken. And we take it so as to return to the viewer the very power that is invested in the artist, that of creating a vision: what Rex Butler refers to in relation to Hany Armanious as the “gift of sight.” (Butler 2000). These artists and myself offer the “gift of sight” by reflecting the act of perception and by engaging the viewer in the same process that the artist goes through. The way we do this is by setting up complex, multi-positional, process-based systems that are highly informed and engaging but do not lead to an end position. Because the artist does not presume to idealise this end position, the result is inevitably confusing, slippery, uncertain, and ambivalent, as if the artist has no position or avoids commitment. This thesis sets out to inves! tigate t his ambivalent position taken by the artist-shaman and to show how and why it is taken. It does this in two ways. Firstly it provides a studio component as a practical example of the practice of an artist-shaman who offers the “gift of sight.” Secondly, the written dissertation provides a theory and understanding of the artist-shaman who offers the “gift of sight.” This may then be applied to the practical component, offering a historical and philosophical context with which to frame it

Reclaiming the political : emancipation and critique in security studies

The critical security studies literature has been marked by a shared commitment towards the politicization of security – that is, the analysis of its assumptions, implications and the practices through which it is (re)produced. In recent years, however, politicization has been accompanied by a tendency to conceive security as connected with a logic of exclusion, totalization and even violence. This has resulted in an imbalanced politicization that weakens critique. Seeking to tackle this situation, the present article engages with contributions that have advanced emancipatory versions of security. Starting with, but going beyond, the so-called Aberystwyth School of security studies, the argument reconsiders the meaning of security as emancipation by making the case for a systematic engagement with the notions of reality and power. This revised version of security as emancipation strengthens critique by addressing political dimensions that have been underplayed in the critical security literature

Non-linear temperature oscillations in the plasma centre on Tore Supra and their interplay with MHD

Regular oscillations of the central electron temperature have been observed by means of ECE and SXR diagnostics during non-inductively driven discharges on Tore Supra. These oscillations are sustained by LHCD, do not have a helical structure and, therefore, cannot be ascribed as MHD phenomena. The most probable explanation of this oscillating regime (O-regime) is the assumption that the plasma current density (and, thus, the q-profile) and the electron temperature evolve as a non-linearly coupled predator-pray system. The integrated modelling code CRONOS has been used to demonstrate that the coupled heat transport and resistive diffusion equations admit solutions for the electron temperature and the current density which have a cyclic behaviour. Recent experimental results in which the O-regime co-exists with MHD modes will be presented. Because both phenomena are linked to details of the q-profile, some interplay between MHD and oscillations may occur. The localisation of magnetic islands allows to obtain an accurate picture of the q-profile in the plasma core. In some case, MHD-driven reconnection helps in maintaining a weakly inverted q-profile that is found to be, in the CRONOS simulations, a necessary condition to trigger the oscillations.Comment: 12th International Congress on Plasma Physics, 25-29 October 2004, Nice (France

Solitary magnetic perturbations at the ELM onset

Edge localised modes (ELMs) allow maintaining sufficient purity of tokamak H-mode plasmas and thus enable stationary H-mode. On the other hand in a future device ELMs may cause divertor power flux densities far in excess of tolerable material limits. The size of the energy loss per ELM is determined by saturation effects in the non-linear phase of the ELM, which at present is hardly understood. Solitary magnetic perturbations (SMPs) are identified as dominant features in the radial magnetic fluctuations below 100kHz. They are typically observed close (+-0.1ms) to the onset of pedestal erosion. SMPs are field aligned structures rotating in the electron diamagnetic drift direction with perpendicular velocities of about 10km/s. A comparison of perpendicular velocities suggests that the perturbation evoking SMPs is located at or inside the separatrix. Analysis of very pronounced examples showed that the number of peaks per toroidal turn is 1 or 2, which is clearly lower than corresponding numbers in linear stability calculations. In combination with strong peaking of the magnetic signals this results in a solitary appearance resembling modes like palm tree modes, edge snakes or outer modes. This behavior has been quantified as solitariness and correlated to main plasma parameters. SMPs may be considered as a signature of the non-linear ELM-phase originating at the separatrix or further inside. Thus they provide a handle to investigate the transition from linear to non-linear ELM phase. By comparison with data from gas puff imaging processes in the non-linear phase at or inside the separatrix and in the scrape-off-layer (SOL) can be correlated. A connection between the passing of an SMP and the onset of radial filament propagation has been found. Eventually the findings related to SMPs may contribute to a future quantitative understanding of the non-linear ELM evolution.Comment: submitted to Nuclear Fusio

On the Relationships between Decision Management and Performance Measurement

Decision management is of utmost importance for the achievement of strategic and operational goals in any organisational context. Therefore, decisions should be considered as first-class citizens that need to be modelled, analysed, monitored to track their performance, and redesigned if necessary. Up to now, existing literature that studies decisions in the context of business processes has focused on the analysis of the definition of decisions themselves, in terms of accuracy, certainty, consistency, covering and correctness. However, to the best of our knowledge, no prior work exists that analyses the relationship between decisions and performance measurement. This paper identifies and analyses this relationship from three different perspectives, namely: the impact of decisions on process performance, the performance measurement of decisions, and the use of performance indicators in the definition of decisions. Furthermore, we also introduce solutions for the representation of these relationships based, amongst others, on the DMN standard.Ministerio de Economía y Competitividad BELI (TIN2015-70560-R)Junta de Andalucía P12-TIC-1867Junta de Andalucía P10-TIC-590

Multi-model approach to quantify groundwater-level prediction uncertainty using an ensemble of global climate models and multiple abstraction scenarios

Acknowledgements. We acknowledge the World Climate Research Programme's Working Group on Coupled Modelling, which is responsible for CMIP, and we thank the climate modelling groups for producing and making available their model output. The fifth author obtained a PhD scholarship from the Fund for Scientific Research (FWO)-Flanders. This financial support is gratefully acknowledged. Data availability. The climate model data are publicly available through the website of the Earth System Grid Federation (https://esgf.llnl.gov, last access: 8 May 2019). Other data used in this study are summarized and presented in the figures, tables, references, and the Supplement. Additional data, model code and results are available upon request to the first ([email protected]) and last ([email protected]) authors.Peer reviewedPublisher PD