Search results

Science of systems requires a specific and constructive mathematical model and language, which describe jointly such systemic categories as adaptation, self‐organization, complexity, evolution, and bring the applied tools for building a system model for each specific object of a diverse nature. This formalism should be connected directly with a world of information and computer applications of systemic model, developed for a particular object. The considered information systems theory (IST) is aimed at building a bridge between the mathematical systemic formalism and information technologies to develop a constructive systemic model of revealing information regularities and specific information code for each object.

To fulfill this goal and the considered systems' definition, the IST joins two main concepts: unified information description of interacted flows, initiated by the sources of different nature, with common information language and systems modeling methodology, applied to distinct interdisciplinary objects; general system's information formalism for building the model, which allows expressing mathematically the system's regularities and main systemic mechanisms.

The formalism of informational macrodynamics (IMD), based of the minimax variational principle, reveals the system model's main layers: microlevel stochastics, macrolevel dynamics, hierarchical dynamic network (IN) of information structures, its minimal logic, and optimal code of communication language, generated by the IN hierarchy, dynamics, and geometry. The system's complex dynamics originate information geometry and evolution with the functional information mechanisms of ordering, cooperation, mutation, stability, diversity, adaptation, self‐organization, and the double helix's genetic code.

The developed IMD's theoretical computer‐based methodology and the software has been applied to such areas as technology, communications, computer science, intelligent processes, biology, economy, management, and other nonphysical and physical subjects.

The IMD's macrodynamics of uncertainties connect randomness and regularities, stochastic and determinism, reversibility and irreversibility, symmetry and asymmetry, stability and instability, structurization and stochastization, order and disorder, as a result of micro‐macrolevel's interactions for an open system, when the external environment can change the model's structure.

The goal is to find a systemic information assembling mechanism, which would describe not only a human being's way of organizing the accepted information but also the general information regularities of this process, applied to different information objects.

Mathematical formalism of Informational Macrodynamics is employed for system modeling of the object's regularities and the main systemic mechanisms. The developed systemic assembling mechanism joins a chaotic oscillation of incoming information frequencies, initiating a chaotic resonance, into a cooperative attractor. A chain of sequentially built attractors generates a collective information dynamic network (IN), whose hierarchy models the multiple information contributions. An information structure of the IN node's attractors is memorized by the key‐lock connections of resonance frequencies.

The results indicate that formalized functions of the assembling cooperative information mechanisms represent a general attribute of a system.

A wide area of applications includes behavior analysis, cognition, artificial intelligence, data organization and management, social systems, and education.

The considered results bring together the formal systemic model of the regularities of collective macrodynamics and the mathematical evaluation of a complex individual's behavior in a collective environment.

Extensions/applications/revisions of the Marxian vision of socialism can broadly be categorized into two polar strands: the centralized and the decentralized strands of socialist economic systems. Explores the main postulates of a decentralized version of a socialist economic system as provided by Kautsky, Luxembourg, Bernstein, Bukharin and Lange. The centralized strand of socialist economic systems has been elaborated drawing mainly from the writings of Lenin, Trotsky, Dobb, Sweezy and Baran.

Films focusing on girls and women with anorexia have not found major producers and distributors in Hollywood, yet movies on subjects such as suicidality and bipolar disorder have been showcased. Eating disorders affect approximately 30 million people in the United States alone, and it has the highest mortality rate of any mental illness, so this invisibility seems incongruous. The authors theorize that Hollywood avoids this subject because of ontological anxiety. Movie plots are schemas and young females are inextricably associated with fertility and futurity. An anorexic’s appearance contradicts and nullifies this symbolic role because anorexia often leads to infertility and death. Psychological studies and philosophical arguments claim that a belief in an afterlife and the regeneration of humankind create coherence and meaning for individuals. An anorexic’s appearance and behavior represent images of self-destruction – images that inflame the viewer’s unconscious and primordial fears about the annihilation of the species. By avoiding the topic of anorexia, Hollywood defends against its symbolic fears of mortality but diminishes the importance of the subject through its absence; it ignores its place in women’s social history and erases its place in American history. Because of Hollywood’s social reach and because greater visibility is correlated with a reduction in stigma, the authors conjecture that a film on this subject would inspire necessary attention to women’s roles, public mores, public policies, and the social good.

The purpose of this paper is to consider divergence of composite plate wings as well as slender wings with thin-walled cross-section of small-size airplanes. The main attention is paid to establishing of closed-form mathematical solutions for models of wings with coupling effects. Simplified solutions for calculating the divergence speed of wings with different geometry are established.

The wings are modeled as anisotropic plate elements and thin-walled beams with closed cross-section. Two-dimensional plate-like models are applied to analysis and design problems for wings of large aspect ratio.

At first, the equations of elastic deformation for anisotropic slender, plate-like wing with the large aspect ratio are studied. The principal consideration is delivered to the coupled torsion-bending effects. The influence of anisotropic tailoring on the critical divergence speed of the wing is examined in closed form. At second, the method is extended to study the behavior of the large aspect ratio, anisotropic wing with box-like wings. The static equations of the wing with box-like profile are derived using the theory of anisotropic thin-walled beams with closed cross-section. The solutions for forward-swept wing with box-like profiles are given in analytical formulas. The formulas for critical divergence speed demonstrate the dependency upon cross-sectional shape characteristics and anisotropic properties of the wing.

The following simplifications are used: the simplified aerodynamic theory for the wings of large aspect ratio was applied; the static aeroelastic instability is considered (divergence); according to standard component methodology, only the component of wing was modeled, but not the whole aircraft; the simplified theories (plate-lime model for flat section or thin-walled beam of closed-section) were applied; and a single parameter that defines the rotation of a stack of single layers over the face of the wing.

The simple, closed-form formulas for an estimation of critical static divergence are derived. The formulas are intended for use in designing of sport aircraft, gliders and small unmanned aircraft (drones). No complex analysis of airflow and advanced structural and aerodynamic models is necessary. The expression for chord length over the span of the wing allows for accounting a board class of wing shapes.

The derived theory facilitates the use of composite materials for popular small-size aircraft, and particularly, for drones and gliders.

The closed-form solutions for thin-walled beams in steady gas flow are delivered in closed form. The explicit formulas for slender wings with variable chord and stiffness along the wing span are derived.

The analysis of the main stages of the Belarusian economy's development from 2000 to 2018 has been carried out, the main factors and limitations of economic growth considered. The known models of economic growth applied to the Belarusian economy are shown. It is grounded that the correct use of endogenous growth models based on production functions is hampered by the significant influence of exogenous factors on the Belarusian economy, and it is more preferable to use models based on the balance of payments under these conditions. The methodology for modeling the balanced economic growth based on Input–Output tables' data is proposed, the results of its use are shown. Three scenarios for the growth of the Belarusian economy until 2025 are analyzed: baseline, adverse, and target; the desired structural changes are identified for the implementation of the target scenario.

How does venture capital (VC) emerge in emerging and developing economies? This paper aims to use case data from an early Russian VC fund to extend a previous model exploring that question.

Case studies of VC emergence from South Africa, Botswana, and Russia are compared, from which a conceptual model is developed.

VC emerges in a process consisting of four stages: enabling, coproducing, diffusing, and replicating. The Russian case shows that these stages are linked in a circular process, i.e. replicating can lead to enabling. VC emergence can also begin at any stage. A higher degree of public‐private coproduction may outweigh the absence of a completed enabling stage, suggesting that strength in one stage can compensate for weakness in others.

This paper invites scholars to reconsider VC emergence in a more nuanced manner that takes into account its complex, processual nature. The inclusion of Russian data also encourages researchers to examine more closely the subtle ways in which the private and public sectors may interact in emerging markets in pursuit of common goals. This study's findings have important linkages with other critical accounts of international business. The study addresses weaknesses in earlier literature by employing a multi‐disciplinary, cross‐context approach that utilizes data from a foreign VC investing in Russian small to medium‐sized enterprises.

VCs considering investment in Russia should examine how early entrants to the industry formed cooperative relationships with local governments. Policymakers should re‐examine the relative importance of national and local efforts to promote VC and other innovation‐related initiatives in emerging markets.

This study moves beyond current economics‐dominated understanding of VC, which focuses on antecedents (enabling conditions). It reports the central role of public‐private coproduction in VC emergence, the feedback between diffusion and coproduction in emergence, and, most importantly, the diminished importance of enabling conditions. This paper presents the first fund‐level study of Russian VC.

The COVID-19 pandemic and subsequent efforts to contain it have started economic downturn that may even surpass the global financial crisis (GFC). The purpose of this study is to uncover the features of enterprises’ resilience during and after an external shock such as the GFC might be helpful in predicting the shock impact on enterprises and setting proper policy measures for the upcoming COVID-19 crisis.

The authors analysed the impact of the GFC on the entrepreneurial population in/of the Czech Republic using marginal effects method on a large random sample of 4,478 enterprises. In this analysis, the authors defined two groups of enterprises – “winners” and “losers” – based on the company’s dissolution and performance indicators.

The GFC struck the enterprise population asymmetrically in terms of the enterprises’ characteristics but also in terms of time. Micro and small size companies are the most vulnerable to external shocks such as the GFC. Technological level plays an important role in the recovery phase, especially in the case of manufacturing micro enterprises.

Although there are differences between the GFC and the COVID-19 crisis, the GFC was the only comparable shock in modern history in its global nature, depth and unpredicted occurrence. It can be expected that the impact on enterprises can be partly similar.

Government support of micro size companies should be the priority in the upcoming COVID-19 crisis. Supporting the innovation and technology progress might accelerate the recovery phase after the crisis especially in micro companies as well.

This paper presents interesting insights into the impact of external shocks such as the GFC or COVID-19 on enterprises. It uncovers typical features of “winners” or “losers” of such shocks.

It is shown that the destination of communists can never be reached. The goal of the perfect society is one which lies beyond the powers of human nature. The analytical teachings of Marxism were accepted by Lenin who devoted himself to the implementation of them in a Russian setting and thereby creating a socialist society. The Party was the dictatorship of the proletariat and not averse to the use of force. Stalin sought to create the centrally planned economy with a mailed fist and became a self‐appointed dictator at the same time as he paid lip service to the Marxist‐Leninist ideology. Solzhenitsyn decries the evils of the USSR and attributes them to the evils of the Marxist‐Leninist ideology. Gorbachev, alive to the shortcomings of the socialist society and the dangers of a nuclear war has, unlike his predecessors, assumed the role of diplomat and peacemaker. Communism is still bent on world domination.

THE Newcastle school, like most others, was established after the second world war to provide full‐time education in librarianship as an alternative to the part‐time system which until 1946 was the only one available to the majority of librarians. At first most of the students were returning servicemen whose library careers had been interrupted by the war and they were followed by students direct from libraries, universities and schools. From a handful of students and one full‐time member of staff in the first year the school has grown steadily until there were 53 students and five staff during the session 1962–3 which was the last course held for the Registration Examination.