243 research outputs found
ON THE INTERPRETATION OF V. BRUSOV’S CORRESPONDENCE. INTRODUCTORY REMARKS. COMMENTS AND NOTES BY NIKOLAY BOGOMOLOV
No full textThe paper’s author publishes V. Brusov’s letters to Shesterkina, which were already published by M. Gasparov. The author adjusts some of conclusions drawn by M. Gasparov, on the basis of the same letters
Steady State Visual Evoked Potential-based Computer Gaming on a Consumer-grade EEG Device
No full textWe introduce a game in which the player navigates an avatar through a maze by using a brain-computer interface (BCI) that analyzes the steady-state visual evoked potential (SSVEP) responses recorded with electroencephalography (EEG) on the players scalp. The four command control game, called The Maze was specifically designed around a SSVEP BCI and validated in several EEG set-ups when using a traditional electrode cap with relocatable electrodes and a consumer-grade headset with fixed electrodes (Emotiv EPOC). We experimentally derive the parameter values that provide an acceptable trade-off between accuracy of game control and interactivity, and evaluate the control provided by the BCI during gameplay. As a final step in the validation of the game, a population study on a broad audience was conducted with the EPOC headset in a real-world setting. The study revealed that the majority (85%) of the players enjoyed the game despite of its intricate control (mean accuracy 80.37%, mean mission time ratio 0.90). We also discuss what to take into account while designing BCI-based games.sponsorship: The work of N. Chumerin was supported by the Tetra project Spellbinder (Flemish Agency for Innovation by Science and Technology). The work of N. V. Manyakov was supported by the Research Grant GOA 10/019. The work of M. van Vliet was supported by IUAP P7/21. The work of A. Robben and A. Combaz was supported by IWT doctoral grants. The work of M. M. Van Hulle was supported by PFV/10/008, CREA/07/027, G.0588.09, IUAP P7/21, GOA 10/019, and the Tetra project Spellbinder. (Flemish Agency for Innovation by Science and Technology, IUAP|P7/21, IWT, Tetra project Spellbinder, GOA 10/019, PFV/10/008, CREA/07/027, G.0588.09, IUAP P7/21)status: Publishe
On the Translation of Nikolay Gogol’s Conceptosphere Units: “Bogatyrstvo” or “Heroism”?
No full textThe translation of Nikolay Gogol’s legacy into foreign languages is traditionally associated with a number of difficulties, ignoring which leads to a distortion of the idiostyle of the classic. The article defines the main reason for the distance between Nikolay Gogol’s works and their foreign transcriptions. It lies in the translator’s indistinguishability of those original writer’s concepts, which are built on the basis of national-patriotic constants and supplemented with semantic stresses that are priority for Gogol the Christian. The argumentation of the proposed thesis is carried out in the article in stages. The first stage is connected with the reconstruction of the “core” of Gogol’s concept “Bogatyrstvo” based on the material of “Selected Passages from Correspondence with Friends” and “Dead Souls.” The second stage is the semantic volume of the “core” of Gogol’s concept “Bogatyrstvo” and the ways of its exposition in foreign translations. It turns out that the reduction of the essence of the author’s concept of “Bogatyrstvo” proposed by the majority of translators to the culturally neutral category of “heroism” is irrational and superficial. The author of the article proposes transliteration of Nikolay Gogol’s conceptosphere units as a solution to the problem of its untranslatability
Nikolay Kirsanov in the System of Characters in the Novel “Fathers and Sons” by Ivan Turgenev
No full textThe aim of the article is to study the character of Nikolay Kirsanov and its role in the novel “Fathers and Sons” since, until recently, this character has been rather neglected, and both national and foreign critics have focused on a standard, and often schematic, enumeration of some positive qualities of the character’s personality. In order to achieve the aim and to probably reconsider the ideas and thematic plot of the novel by I. Turgenev in general, the hermeneutic, biographical and cultural-historical methods are used in the article in the context of receptive aesthetics. The suggested approach has enabled the author to argue that the personality traits of Nikolay Petrovich are determined by his relationship with Fenechka because in this case they find themselves under pressure of social inequality, significant age difference, and their mutual illegitimate son. Such an unusual behavior of a basically positive character is motivated by his belonging to the infernal sphere, which is interpreted by means of the image of “le Diable Boiteux”, i.e. “a lame devil”, with all customs and traditions of the landowners and nobility represented in it. Moreover, the character of Nikolay Petrovich Kirsanov embodied Turgenev’s personal traumatic experience concerning the writer’s illegitimate daughter. All this has allowed the author to make a conclusion that it is possible to partially reconsider most of the novel characters due to their involvement into the ambiguous situation which formed because of one of the Kirsanov brothers. The role of the character of Nikolay Petrovich and its place in the system of characters in the novel “Fathers and Sons” consists in the fact that thanks to this contradictory character, the book obtains additional pier- cing human impulse, which ensures immortality of the genius Russian writer’s literary work
Geavanceerde signaalkenmerken voor de verwerking en decodering van registraties met multi-electrode roosters in de visuele cortex van de aap
No full textp { margin-bottom: 0.08in; }We hebben een informatie-theoretischemetriek gebruikt om de fasesynchronisatie te meten van localeveldpotentialen (LVPs) die geregistreerd werden met eenmulti-electrode rooster geimplanteerd in zone V4 van de visuelehersenschors van de mamaak aap, voor een conditioneringsexperiment.We hebben aangetoond dat: 1) de fasesynchronisatie significant hogeris voor de beloonde stimulus dan de niet beloonde, nadat de aap isgetraind, 2) juist na het omkeren van het stimulus paradigma, hetverschil in fasesynchronisatie komt vanwege de stimulus, niet debeloning, 3) het verschil in het antwoord op debeloning en de niet beloonde stimulushet meest duidelijk is in twee niet-geconnecteerde tijdsintervallengedefinieerd tussen de aanzet van de stimulus en het verwachtetijdstip van de beloning, en 4) de synchrone activiteit voorkomt ingolven die over het rooster lopen, en dat de timing ervan goedcorreleert met de tijdsintervallen waarin het verschil in hetantwoord op de beloonde en de niet beloonde stimulus het meestprominent is.Daar we een visuele Brein MachineInterface (BMI) op het oog hadden, hebben we ook het probleembeschouwd van de decodering van het antwoord op de beloonde en deniet beloonde stimulus op basis van de LVPs geregistreerd met eenmulti-electrode rooster in zone V4 gedurende een perceptueel lerentaak. We hebben een betekenisvolle verzameling kenmerken ontwikkeldwaarmee de leerperformantie van de aap kon gevolgd worden. E'n vandeze kenmerken is gebaseerd op de LVP golfpropagatie die we eerderontdekt hadden in V4. We hebben aangetoond dat detijdsfrequentiekenmerken, samen met de spatiale kenmerken(fasesynchronisatie en golfpropagatie), nadat eenkenmerken-selectie-procedure werd toegepast, tot een exceptioneelgoede enkelvoudige trial performantie leiden, zelfs bij gebruik vaneen lineaire classificator.We hebben ook een visuele BMIontwikkeld die de orientatie van een grating decodeert op basis vanactiepotentialen geregistreerd met een multi-electrode rooster,geimplanteerd in V4 van de resusaap. Twee verschillende types vankenmerkenselectieprocedures werden vergeleken, een filter en eenwrapper. De wrapper werd met een lineare discriminant analyse (LDA)classificator gecombineerd, en de filter met een support vectormachine classificator. Bovendien hebben we verschillende methodenvoor het paarsgwijze combineren van classificatoren vergeleken. Wehebben aangetoond dat een LDA classificator in combinatie met eenwrapper kenmerkenselectieprocedure tot de beste decodeerperformantieleidde.status: Publishe
Feature Extraction and Classification of EEG Signals for Rapid P300 Mind Spelling
No full textThe Mind Speller is a Brain-Computer Interface which enables subjects to spell text on a computer screen by detecting P300 Event-Related Potentials in their electroencephalograms. This BCI application is of particular interest for disabled patients who have lost all means of verbal and motor communication. We report on the implementation of a feature extraction procedure on a new ultra low-power 8-channel wireless EEG device. The feature extraction procedure is based on downsampled EEG signal epochs, the Student's t-statistic of the Continuous Wavelet Transform, and the Common Spatial Pattern technique. For classification, we use a linear Least-Squares Support Vector Machine. The results show that subjects are potentially able to communicate a character in less than ten seconds with an accuracy of 94.5%, which is more than twice as fast as the state of the art. In addition since our EEG device is wireless it offers an increased comfort to the subject.sponsorship: AC and NVM are supported by the European Commission (IST-2004-027017). NC is supported by the European Commission (STREP-2002-016276). JAKS acknowledges support from research grants received from the Belgian Fund for Scientific Research Flanders (G.0588.09). MMVH is supported by research grants received from the Excellence Financing program (EF2005) and the CREA Financing program (CREA/07/027) of the K.U.Leuven, the Belgian Fund for Scientific Research Flanders (G.0234.04 and G.0588.09), the Inter University Attraction Poles Programme Belgian Science Policy (IUAP P5/04), the Flemish Regional Ministry of Education (Belgium) (GOA 2000/11), and the European Commission (STREP-2002-016276, IST-2004-027017, and IST-2007-217077). (European Commission|IST-2004-027017, Scientific Research Flanders|G.0588.09, Excellence Financing program|EF2005, CREA Financing program|CREA/07/027, Inter University Attraction Poles Programme|IUAP P5/04, Flemish Regional Ministry of Education|GOA 2000/11, STREP-2002-016276, G.0234.04, IST-2007-217077)status: Publishe
Porovnání dvou nederivatizujících solventních systémů a vliv aditiv
No full textNázev práce: Rozpouštění celulózy: Porovnání dvou nederivatizujících solventních systémů a vliv aditiv Autor: Nikolay Kotov Ústav: Ústav makromolekulární chemie, Akademie věd České republiky, v. v. i. Vedoucí disertační práce: RNDr. Jiří Dybal, CSc. Konzultant: Mgr. Adriana Šturcová, Ph.D. Ústav makromolekulární chemie, Akademie věd České republiky, v. v. i., Odděleni vibrační spektroskopii Abstrakt: Celulóza je snadno dostupný a hojně využívaný materiál získávaný z obnovitelných zdrojů. Při jejím zpracování je limitující její omezená rozpustnost. Rozpouští se pouze ve specifických rozpouštědlech či jejich kombinacích a porozumění procesům rozpouštění není uspokojivé. Cílem této dizertační práce je získání nových experimentálních informací o změnách struktury celulózy při jejím rozpouštění ve dvou rozpouštědlech: v 1-butyl-3-methylimidazoliumchloridu (bmimCl), tj. iontové kapalině, a v N,N-dimethylacetamidu (DMAc) s přídavkem chloridu lithného (LiCl), tj. organickém rozpouštědle s anorganickou solí. Hlavním nástrojem studia jsou metody vibrační spektroskopie, které poskytují cenné informace o struktuře polymerů. Podobnosti a rozdíly nalezené ve spektrech celulózy v bmimCl a v DMAc s přídavkem LiCl jsou systematicky analyzovány a studován je též vliv celulózy na rozpouštědla. Pozornost je věnována vlivu...Title: Cellulose dissolution: Comparison of two non-derivatizing solvent systems and the effect of additives Author: Nikolay Kotov Institute: Institute of Macromolecular Chemistry, Czech Academy of Sciences Supervisor of the doctoral thesis: RNDr. Jiří Dybal, CSc. Consultant: Mgr. Adriana Šturcová, Ph.D. Institute of Macromolecular Chemistry, Czech Academy of Sciences, Department of Vibrational Spectroscopy Abstract: Cellulose is an abundant renewable material, which processing and applicability is limited owing to cellulose inability to dissolve in commonly used solvents. Only specific solvents or their combinations are able to dissolve cellulose and its dissolution processes remain unclear till nowadays. Aim of this thesis was to acquire new experimental information on the changes which cellulose exhibits upon dissolution in two exemplary solvents: an ionic liquid 1-butyl-3-methylimidazolium chloride (bmimCl) and in an organic solvent N,N-dimethylacetamide (DMAc) with lithium chloride (LiCl). The main tool for that investigation is vibrational spectroscopy which provides valuable information about the polymer structure. Similarities and differences found in the spectra of cellulose in those two solvents and influence of cellulose on the solvents are analyzed. Furthermore, influence of additives on the...Matematicko-fyzikální fakultaFaculty of Mathematics and Physic
Monetary policy in Russian Federation and its influence on enterpreneurship
No full textCílem bakalářské práce je analýza a vysvětlení monetární politiky centrální banky Ruské federace, a vymezení specifičností jejího fungování v období 2000-2015, jejich cílů, modelů, hlavních instrumentů a metod regulace. Nejdříve se v první kapitole věnuje teoretickému problému monetarní politiky, v této části jsou popsány základní teoretické aspekty fungování měnové politiky. Pak bude popsáno fungování a učinnost centrální banky v podminkách ruské ekonomiky. Dále jsou rozebrány dvě období: 2000-2013 a 2014-2015.. V rámci samotné analýzy monetární politiky Ruské federace budou probrány podmínky zahajení kríze 2014-2015. Stejné tak budou probrány nástroje, pomocí kterých se centrální banka Ruské federace snaží docílit konečných žádoucích výsledků. Dále se bude uveden vliv na podnikatelskou sféru a ruskou ekonomiku.The aim of this bachelor thesis is to analyze and to explain motenary policy of Russian federation central bank and to determine specefic characteristics during 2000-2015, its targets, models, main instruments and methods of regulation. First of all, in the first chapter will be introduced theoritical part of monetary policy, in that part there are the main aspects of monetary policy. Then the functions and the effectiveness of Russian central bank will be described. There are described two periods: 2000-2013 and 2014-2015. The conditions and the causes of the crysis 2014-2015 will be depicted during the analysis of the monetary policy. Equally the instruments which are being used by the central bank will be taken place in that bachelor thesis. In the end, the author describes influence of monetary policy on enterpreneurship and economy
FROM THE NOTES CONCERNING VERSES BY V. BRUSOV
No full textThe author of the paper analyzes a number of poems by V. Brusov, published antemortem and postmortem, and shares his reflection and conclusions. The matter concerns, in particular, «a reply to acmeists», «a mystery of “A Fatal Row ”», and «Verea»
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