140 research outputs found
Analytical and synthetic selection as a result of regular introduction
No full textResults of the long-term work on introduction and selection of southern and new fruit-bearing plants in the National Botanical Gardens of the National Academy of Sciences of Ukraine are discussed in the paper. The author shows the possibilities of using genetic diversity of the primary material for creation of promising varieties and forms in the Ukrainian Forest-Steppe and presents characteristics of new varieties, transferred to the State Grade Testing of Ukraine
La inclusión social de la población con discapacidad: una problemática basada en el reconocimiento y los derechos humanos
No full textEl presente artículo expone diversos elementos normativos, sociales y gubernamentales que tienen el propósito de generar unas bases analíticas e informativas para la sociedad en general. Particularmente, se enfoca en la descripción de experiencias y acciones exitosas en la formulación de políticas, leyes, normas, acuerdos, entre otras, en el campo de la inclusión, la equidad y la atención integral de personas con discapacidad; de igual manera, presenta algunos casos en los que la inclusión ha sido menos favorable para este tipo de población, con el fin de identificar aquellos ejercicios que han propiciado la exclusión y el no reconocimiento de los derechos humanos de este colectivo. Metodológicamente, se construye a partir de un análisis documental y la revisión bibliográfica de trabajos anteriores enfocados en el tema de la inclusión, la exclusión, las políticas públicas, los derechos humanos y el reconocimiento de las personas con discapacidad, entre otros. Así mismo, ha estado motivado por la experiencia personal y profesional de sus autoras, por lo cual, su construcción se desarrolla bajo una mirada crítica y reflexiva que aporta claves para generar sensibilidad social frente a contextos de exclusión, en los cuales han vivido las personas con discapacidad a nivel mundial y en Colombia
Museum metaphysics
No full textThis review deals with the book by S. V. Klimenko, a well-known philologist, a staff member of the N. G. Chernyshevskiy Estate Museum. It shows the academic character of the book under review. The book is timed according to the periods of the author’s creative life, but at the same time the identified periods appear to be crucial for the history of the museum as they were linked to anniversaries of N. G. Chernyshevskiy or memorable dates in the history of the museum itself. The content of the book combines fascinating stories about the creation of new museum “products” and the definition of the essence and purpose of the profession of someone whose life is connected to a literary museum. A literary museum worker is presented in the book as a person for whom the literary studies of sources become not only a process inseparable from the museum work but also an object of academic research and exploration. Considerable attention is paid to the problems of museum work as the most important area of humanitarian knowledge. S. V. Klimenko is also concerned with the issues of personnel training and funding. An important point for the author of the book becomes the question of what materials a separate museum exhibition or a large exposition should be based on. S.V. Klimenko assigns great importance to the development of the concept of an exhibition or exposition in museum work. Discussions that accompany the emergence of any new “product” represent the birth of the concept, i.e. understanding of the principles of material selection, logic of its presentation and scientific commentary. The author of the book advocates the conceptual approach to the presentation of museum exhibits in showcases or on walls in an essentially rigorous way. S. V. Klimenko has succeeded not only in opening the world of the literary museum to the reader, but in showing its heartbeat in several dimensions, projected on the science, source studies, archives, education, working with the visitors, and the work of exhibition designers
Connecting Targets to Tweets: Semantic Attention-Based Model for Target-Specific Stance Detection
No full textUnderstanding what people say and really mean in tweets is still a wide open research question. In particular, understanding the stance of a tweet, which is determined not only by its content, but also by the given target, is a very recent research aim of the community. It still remains a challenge to construct a tweet’s vector representation with respect to the target, especially when the target is only implicitly mentioned, or not mentioned at all in the tweet. We believe that better performance can be obtained by incorporating the information of the target into the tweet’s vector representation. In this paper, we thus propose to embed a novel attention mechanism at the semantic level in the bi-directional GRU-CNN structure, which is more fine-grained than the existing token-level attention mechanism. This novel attention mechanism allows the model to automatically attend to useful semantic features of informative tokens in deciding the target-specific stance, which further results in a conditional vector representation of the tweet, with respect to the given target. We evaluate our proposed model on a recent, widely applied benchmark Stance Detection dataset from Twitter for the SemEval-2016 Task 6.A. Experimental results demonstrate that the proposed model substantially outperforms several strong baselines, which include the state-of-the-art token-level attention mechanism on bi-directional GRU outputs and the SVM classifier
REGIONAL DEVELOPMENT: ADAPTATION MECHANISMS AT MESO-LEVEL
No full textThe article views the issues of formation and development of tourist-recreational complex of a region at meso-level via the methodology of the national economy transition to innovative way of development. The author grounds the choice of one of the proposed strategies of tourist-recreational complex development basing on the competitive advantages of the region viewed as a quasi-state
Селекція аналітична і синтетична як результат планомірної інтродукції
No full textResults of the long-term work on introduction and selection of southern and new fruit-bearing plants in the National Botanical Gardens of the National Academy of Sciences of Ukraine are discussed in the paper. The author shows the possibilities of using genetic diversity of the primary material for creation of promising varieties and forms in the Ukrainian Forest-Steppe and presents characteristics of new varieties, transferred to the State Grade Testing of Ukraine
About Legal Responsibility for Violations of the Low of the Russian Federation in the Field of Information Security: Problems and Prospects
No full textThe author analyses the legislation of the Russian Federation and foreign countries which establishes legal responsibility for irregularities in the field of information security. The research of crime dynamics has been done, the problems have been revealed and the prospects for the legislation development have been outlined. The article contains theoretical materials by such authors as D. N. Bakhrakh, I. L. Bachilo, T. A. Kukharenko, dissertation research А. А. Streltsov, as well as background information S. I. Ozhegov and N. Yu Shvedova
Erratum: Graph clustering in industrial networks (IMA Journal of Applied Mathematics (Institute of Mathematics and Its Applications) DOI: 10.1093/imamat/hxz028)
No full textThe original version of this article contained erroneous characters in the paragraphs concerning figures 4.15 and 4.16. These errors were introduced during the production process as a result of a misunderstanding regarding author corrections. The paragraphs have now been corrected to depict the original intent of the author as it should have been understood
Relevance of zeta potential as a tool for predicting the response of controlled salinity waterflooding in oil-water-carbonate systems
No full textInternational audienceZeta potential has been proposed as a key parameter for predicting the response of controlled salinity waterflooding, as correlation with additional oil recovery has previously been established. However, it is unclear if there is a causal effect and if this parameter can be used as a unique predictive tool. We provide new insights with a detailed investigation into the role of the change of polarities of oil/water/rock interfaces on the additional oil recovery. Core flooding experiments with streaming potential and electrophoretic mobility measurements were performed to obtain insights into the electrostatic interactions that occur during oil recovery on Estaillades rock. Two different injection scenarios were followed in one crude oil/brine/rock (COBR) system: one conventional injection with decreasing salinity and one inverse injection with increasing salinity. Results indicated that oil recovery in secondary mode was more important using formation brine compared to low salinity brine. Also, almost no additional oil recovery was observed in tertiary mode irrespective of the injection scenario. Rock/water zeta potential was found positive in formation brine, and negative in the low salinity brines. The determination of oil/water polarity was more difficult as 2 many inconsistencies between streaming potential and electrophoretic mobility measurements were observed. We propose several explanations for these discrepancies, including that the difference in zeta potential at fully water saturation and at residual saturation is not necessarily dependent on oil polarity as it can be induced by a change in rock exposed surface and in the distribution in water flow paths during measurements. The overall results suggest that zeta potential cannot be used as a unique indicator to predict the low salinity response of a COBR system
Marangoni destabilization of bidimensional-confined gas-liquid co-flowing streams in rectangular microfluidic channels
No full textInternational audienceIn microchannels, the stability of a fluid jet injected into another immiscible fluid strongly depends on its degree of geometric confinement. When the width of the jet, w, is larger than the channel height, H, the surface tension driven Rayleigh-Plateau instability is suppressed so that the 2D (bidimensional)-confined jet is absolutely stable and never collapses into bubbles (or drops) in contrast to what occurs when w ≤ H [Dollet et al., "Role of the channel geometry on the bubble pinch-off in flow-focusing,"Phys. Rev. Lett. 100(3), 034504 (2008); Guillot et al., "Stability of a jet in confined pressure-driven biphasic flows at low Reynolds number in various geometries,"Phys. Rev. E 78(1), 016307 (2008)]. We here demonstrate both experimentally and theoretically that this picture is, indeed, no longer valid when Marangoni effects are considered. We experimentally show that the addition of small length alcohol molecules into the liquid phase destabilizes a 2D-confined gas-water microfluidic stream (w > H), leading to the generation of steady non-linear waves and further to the production of bubbles. Using a simple hydrodynamic model, we show through a linear analysis that the destabilization of the gas stream may result from a Marangoni instability due to the fast adsorption of the alcohol molecules, which occurs on a timescale comparable to that of the microfluidic flow. © 2023 Author(s)
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