165,526 research outputs found
O. Smirnova
No full textIntroduction Hadron production in the electron-positron annihilation at high energies always provided physicists with clean data samples, particularly convenient for various precision analyses. Studies of the multiparticle dynamics in hadronic decays of the fl =Z 0 brought up many interesting results 1 , being of a great importance for understanding of the hadronization process. At higher energies, when W + W \Gamma pairs can be produced, an issue of a "cross-talk" between two hadron sources became the very important point in correlation studies. All the four experiments at LEP, -- ALEPH, DELPHI, L3 and OPAL, conducted various studies of the fluctuations and correlations in phase space. Recently, a certain interest in studies of the Bose-Einstein correlations in particular in e + e \Gamma annihilation arose, following the appearance of the
Puškin et les carnets d'Aleksandra O. Smirnova
No full textDe Ponfilly Raymond. Puškin et les carnets d'Aleksandra O. Smirnova. In: Revue des études slaves, tome 59, fascicule 1-2, 1987. Alexandre Puškin, 1799-1837, sous la direction de Efim Etkind. pp. 101-108
Re-employment Probabilities and Wage Offer Function for Russian Labor Market
No full textThis research addresses labor market transformation in Russia. It elaborates on the theory of job search and focuses on the following issues: (1) evaluation of the re-employment probabilities (hazard rates) for different socio-economic groups; and (2) estimation of wage offer distribution for the transforming labor market. We use data from Phase II of the Russia Longitudinal Monitoring Survey (RLMS) to estimate the employment and wage offer functions for Russian workers who found a job after having been unemployed. We take into account the effectiveness of search strategies used and correct for truncation in wage offers. The binomial logit-OLS estimation method with sample selection bias correction on pooled data from Rounds 5-9 of RLMS is used. The factors considered are sex, education, experience, sector of employment and search methods’ success rate, which are hypothesized to capture the main determinants of job search behavior. The results show that individual characteristics, as well as the search method used, play a decisive role in the re-employment prospects of the unemployed. The private sector employment level is estimated to have the most powerful positive effect on the wage offer function. Russian women are less likely than men to find a job after being unemployed, and wage offers for women are estimated to be lower than for men.Russia, Transition, Job Search, Wage Offer Function, Hazard Rates
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Development of Aerogel Additives for the Foundry Industry
No full textThe foundry industry produces castings by solidification of molten metal in sand or permanent moulds. Special sand cores are used to get specific cavities within the casting material. These cores have the negative shape of the required hole. Many cast defects are known to appear on account of the thermal, mechanical and/or chemical transformation of the sand cores. The thermal decomposition of the most often used organic binder system, leads to a strong gas evolution and the occurrence of special cast defects. To avoid this expensive and time consuming ceramic coatings are used. Alternatively the cast quality can be improved by refining the cores themselves using aerogels. Aerogels as nanostructured additives restrain many typical cast defects. Their large inner surface, high gas absorption capacity and lower thermal conductivity are able to minimize common defects in castings. Resulting exhaust gases can be bound physically or chemically on the inner surface. Within the last years granulated aerogels as additives lead to benefits in aluminum and brass alloy castings. Recently they enabled positive results even in grey cast iron. Due to the high casting temperatures, the different solidification behavior of bronze and the mechanical treatment at the bronze foundry industry aerogels as additives are exposed to different thermal and mechanical circumstances. They need to withstand temperatures above 1200-1300°C for a period of time and be stable under oxidizing conditions. Si-O-C aerogels could be synthesized by pyrolysis of the appropriate organic-inorganic hybrid system. They are stable under high temperatures and may be used as additives in bronze casting. The poster describes the synthesis of the Si-O-C aerogels, their thermal and mechanical properties as well as their ability of gas adsorption by measuring the inner surface
Comparative Analysis of Cryptocurrency Trading Platforms Using the Analytic Hierarchy Process
No full textIn the rapidly evolving world of cryptocurrency trading, selecting an optimal trading platform is paramount for both novice and seasoned investors. This study aims to provide a comprehensive evaluation of leading cryptocurrency trading platforms using the Analytic Hierarchy Process (AHP). The AHP, a structured technique for organizing and analyzing complex decisions, was employed to rank platforms based on multiple criteria, including UI/UX, security protocols, asset diversity, and more. Initial findings, considering equal importance for all criteria, highlighted Binance as the most favorable platform. However, when varying the importance of criteria based on empirical data, the distinctions between platforms became less pronounced, yet Binance retained its top position. This research not only offers valuable insights for potential investors but also emphasizes the significance of considering multiple criteria in decision-making processes. Furthermore, the study underscores the versatility of the AHP in evaluating multifaceted scenarios, making it a valuable tool for future research in diverse domains
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Software as storytelling: A systematic literature review
No full textStorytelling has always been a crucial, perhaps constitutive part of our lives. All communities have told stories. In recent years, software development is becoming increasingly recognized as a creative process that has a lot in common with the process of writing or telling a story. Aim: The objectives of this paper are: (a) to review and aptly classify current principles and approaches that describe software development as a form of storytelling; (b) to describe and understand the heuristic function of storytelling in software development; and (c) to discuss and single out the principles of storytelling that may play a role, hence constitute significant improvements to the practices of software developers. Method: To achieve these goals and objectives we conducted a systematic literature review of relevant scientific papers and subsequently analyzed them by means of a textual narrative synthesis. Results: More specifically, we retrieved, screened and examined 51 relevant publications. The synthesis we conducted allowed us to understand and better visualize the many interesting correspondences and analogies between those two seemingly different processes, namely storytelling and software development. In particular, in our work, we focused on describing and analyzing how certain principles underlying storytelling can be adapted and applied in current practices of software engineering. Conclusion: This paper presents and re-elaborates in a critical fashion and from a different angle a substantial body of knowledge and research recently carried out in the software development literature
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