The formalism of general probabilistic theories provides a universal paradigm that is suitable for describing various physical systems including classical and quantum ones as particular cases. Contrary to the usual no-restriction hypothesis, the set of accessible meters within a given theory can be limited for different reasons, and this raises a question of what restrictions on meters are operationally relevant. We argue that all operational restrictions must be closed under simulation, where the simulation scheme involves mixing and classical post-processing of (...) meters. We distinguish three classes of such operational restrictions: restrictions on meters originating from restrictions on effects; restrictions on meters that do not restrict the set of effects in any way; and all other restrictions. We fully characterize the first class of restrictions and discuss its connection to convex effect subalgebras. We show that the restrictions belonging to the second class can impose severe physical limitations despite the fact that all effects are accessible, which takes place, e.g., in the unambiguous discrimination of pure quantum states via effectively dichotomic meters. We further demonstrate that there are physically meaningful restrictions that fall into the third class. The presented study of operational restrictions provides a better understanding on how accessible measurements modify general probabilistic theories and quantum theory in particular. (shrink)

The purpose of the study is to reveal the factors and features that increase the efficiency of the educational process in universities in modern conditions of digitalization. The article consistently analyzes the features of the processes occurring in the modern digital economy, shows their impact on the effectiveness of the educational environment of the university, and also considers the specific features of digitalization in modern socio-economic conditions. The scientific novelty of the research lies in the theoretical analysis of the ways (...) and means of increasing the efficiency of educational work in the university. Based on the theoretical data of the research, it is possible to create practical and theoretical programs and make possible changes in the educational policy of universities in order to better use digitalization in the educational process. As a result, the article reveals the features of the influence of informatization on the educational environment of the university and ways to improve its efficiency. (shrink)

Впервые в отечественной литературе всесторонне рассматриваются жизнь и творчество Фридриха Генри Якоби, коммерсанта и мыслителя, романиста и публициста, "серого кардинала" и "привилегированного еретика" немецкой философии в эпоху ее расцвета.

Fridrikh Shlayermakher -- Vilhelm Diltʻay -- Martin Haydeger -- Hans-Georg Gadamer -- Zhak Derida.

I detect a specific attitude to Byzantium (“the Byzantine Enlightenment”) in Ivan Kireevsky’ Slavophile article “On the Character of Enlightenment in Europe” (1852). I qualify this attitude as Byzantinocentrism. I take that as a focal point and, against this background, consider the image of Byzantium in Kireevsky and some thinkers of his social circle. It allows me to trace the most important lines of attitudes to Byzantium in the Russian historiosophical literature and opinion journalism of the nineteenth century. I detect (...) two opposite lines in perceiving Byzantium in Kireevsky’s early social circle: the anti- and pro-Byzantine ones. The first line goes back to an anti-Byzantine message, characteristic of the epoch of Enlightenment. It found its manifestation in G. W. F. Hegel’s Lectures on the Philosophy of History. I point to the traces of the implicit polemics with Hegel’s anti-byzantinism in Kireevsky and identify the context of these polemics in Arist Kunick. As well, I outline how these lines worked in Pyotr Chaadaev and Alexander Pushkin. Then I distinguish between how the image of Byzantium was presented, first, in Kireevsky’s earlier Slavophile article “On the Character of Enlightenment in Europe” and, second, in his last article “On the Necessity and Possibility of the new Foundations for Philosophy” (1856). In the latter article, which sees Byzantium as bipolar, I find another view on Byzantium. I suggest that this view on Byzantium as a bipolar entity goes back to Alexey Khomyakov’s Semiramis. My point is that this difference in the views on Byzantium is paradigmatic and it reflects a division that was present in the Russian Slavophile-conservative milieu of that time. I suggest that this division stands behind another division within the same milieu, which was politically oriented, the one in relation to the Greek-Bulgarian ecclesiastical question. I analyze how both monopolar (Byzantinocentric) and bipolar views on Byzantium were reflected in the Greek-Bulgarian question as it was considered by Alexey Khomyakov and Terty Filippov. I find a context for developing Kireevsky’s attitude towards Byzantium in François Guizot’s historiosophic scheme as well. (shrink)

Attentive readers of Bakhtin are familiar with the importance he attributed to “semiliterary” or folkloristic genres and art works. Bakhtin came to the interesting conclusion that emerging and historically representative, types of literary works often build from semi-literary blocks. These blocks may be fragmented and incomplete, purely raw materials from the aesthetic viewpoint. Nonetheless, they are harbingers of the emergence of a significant literary form. This is the case with Red Square, apparently a thriller written by two Soviet defectors, Edward (...) Topol and Fridrikh Neznasky, in reality a significant, albeit semi-literary, historical novel in the style of Walter Scott. All constituents analyzed by Lukács in his famous description of Scott's historical novels are present. (shrink)

In the complex environment, the suddenly changing structural parameters and abrupt actuator failures are often encountered, and the negligence or unproper handling method may induce undesired or unacceptable results. In this paper, taking the suddenly changing structural parameters and abrupt actuator failures into consideration, we focus on the robust adaptive control design for a class of heterogeneous Takagi–Sugeno fuzzy nonlinear systems subjected to discontinuous multiple uncertainties. The key point is that the switch modes not only vary with the system time (...) but also vary with the system states, and the intrinsic heterogeneous characteristics make it difficult to design stable controllers. Firstly, the concepts of differential inclusion are introduced to describe the heterogeneous fuzzy systems. Meanwhile, a fundamental lemma is provided to demonstrate the criteria of the boundness for a Filippov solution. Then, by using the set-valued Lie derivative of the Lyapunov function and introducing a vector of specific continuous functions, the closed-loop T-S fuzzy differential inclusion systems are proved to be ultimately bounded. The sufficient conditions for system stability are derived in term of linear matrix inequalities, which can be solved directly. Finally, a numerical example is provided to illustrate the effectiveness of the proposed control algorithm. (shrink)