1,729,223 research outputs found
Extensions and variations of the two-person game on graphs
Get PDFKhachatryan A. Extensions and variations of the two-person game on graphs. Bielefeld: Universität Bielefeld; 2011
[Effective teaching tips]
No full text[Serob Khachatryan]Literaturverzeichnis Seite 73Text armenischArmenisc
Modelling Interregional Trade of Energy Crops in Eastern Germany
Get PDFRenewable resources gain in importance in our modern society. The line of reasoning is based on their positive effects on agriculture, the environment and the economy. To support renewable energy from biomass the EU promotes the cultivation of energy crops. A spatial equilibrium model is applied based on the concept of maximizing net welfare, to provide information whether energy crop production competes with food production for land area. The Model of Interregional Trade of Energy Crops (ITEC) refers to Eastern Germany and adjacent areas of Poland. First results show that the regions have enough feedstocks to meet the required demand for food and biofuel production. In many cases both food crops and biofuels are either traded on interregional basis or exported to "Rest of Europe" indicating that there is no competition between food and energy crops. Only green maize for biogas production strongly competes in areas where the crop is required as feed for cattle.Energy crops, spatial equilibrium analysis, interregional trade, International Relations/Trade,
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Effect of Ion Motion on Breaking of Longitudinal Relativistically Strong Plasma Waves: Khachatryan mode revisited
Get PDFEffect of ion motion on the spatio-temporal evolution of a relativistically
strong space charge wave, is studied using a 1-D fluid simulation code. In our
simulation, these waves are excited in the wake of a rigid electron beam
propagating through a cold homogeneous plasma with a speed close to the speed
of light. It is observed that the excited wave is a mode as described by
Khachatryan [Phys. Rev. E 58, 7799 (1998)] whose profile gradually sharpens and
the wave eventually breaks after several plasma periods exhibiting explosive
behaviour. It is found that breaking occurs at amplitudes, which is far below
the breaking limit analytically derived by Khachatryan [Phys. Rev. E 58, 7799
(1998)]. This phenomenon of wave breaking, at amplitudes well below the
breaking limit, is understood in terms of phase mixing of the excited wave. It
is further found that the phase mixing time (wave breaking time) scales
inversely with the energy density of the wave
V. BRUSOV'S LETTERS SENT TO I. BRUSOVA FROM PARIS (1909). INTRODUCTORY REMARKS, TRANSLATION AND NOTES BY NATALIA KHACHATRYAN (YEREVAN)
No full textThe author publishes a number of letters V. Brusov sent to his spouse, I. Brusova, from Paris. The correspondence provides the writer’s insight of the city, his impressions of the meetings with René Gillet, Charles Vildrac, Paul Boyer, Konstantin Balmont. He also informed his wife of fashion and hairstyle trends and attached the magazines clippings. The correspondence also reveals V. Brusov’s engagement in some remarkable events, such as aviator flights
Dataset: A Comparison of Individual and Group Behavior in a Competition with Cheating Opportunities
No full textThis is the dataset and corresponding do-file to reproduce the results from the paper:
Dannenberg, Astrid, and Elina Khachatryan. 2020. “A comparison of individual and group behavior in a competition with cheating opportunities.” Journal of Economic Behavior & Organization, 177: 533–47
Variations on the Author
Get PDF“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
- …
