scholarly journals An algebra of the central types of the mutually model-consistent fragments

2021 ◽  
Vol 101 (1) ◽  
pp. 111-118
Author(s):  
A.R. Yeshkeyev ◽  
◽  
N.M. Mussina ◽  
Keyword(s):  
Complete Theory ◽  
Semantic Model ◽  
Closed Model ◽  
Central Type ◽  
Bernstein Problem ◽  
Existentially Closed ◽  
New Concepts ◽  
The World ◽  
Carry Over

In this paper, the model-theoretical properties of the algebra of central types of mutually model-consistent fragments are considered. Also, the connections between the center and the Jonsson theory in the permissible signature enrichment are shown, and within the framework of such enrichment, instead of some complete theory under consideration, we can obtain some complete 1-type, and we will call this type the central type, while the theories under consideration will be hereditary. Our work is divided into 3 sections: 1) the outer and inner worlds of the existentially closed model of the Jonsson theory (and the feature between these worlds is considered for two existentially closed models of this theory); 2) the λ-comparison of two existentially closed models (the Schroeder-Bernstein problem is adapted to the study of Jonsson theories in the form of a JSB-problem); 3) an algebra of central types (we carry over the results of Section 2 for the algebra (F r(C), ×), where C is the semantic model of the theory T). Also in this article, the following new concepts have been introduced: the outer and inner worlds of one existentially closed model of the same theory (as well as the world of this model), a totally model-consistent Jonsson theory. The main result of our work shows that the properties of the algebra of Jonsson theories for the product of theories are used as an application to the central types of fixed enrichment. And it is easy to see from the definitions of the product of theories and hybrids that these concepts coincide if the product of two Jonsson theories gives a Jonsson theory.

scholarly journals Small models of convex fragments of definable subsets

2020 ◽  
Vol 100 (4) ◽  
pp. 160-167
Author(s):  
Aibat Yeshkeyev ◽  
◽  
N.V. Popova
Keyword(s):  
Model Theory ◽  
Elementary Theory ◽  
Semantic Model ◽  
Closed Model ◽  
Existentially Closed ◽  
Existential Sentences ◽  
Characteristic Features ◽  
Almost All ◽  
Small Models ◽  
Vast Area

This article discusses the problems of that part of Model Theory that studies the properties of countable models of inductive theories with additional properties, or, in other words, Jonsson theories. The characteristic features are analyzed on the basis of a review of works devoted to research in the field of the study of Jonsson theories and enough examples are given to conclude that the vast area of Jonsson theories is relevant to almost all branches of algebra. This article also discusses some combinations of Jonsson theories, presents the concepts of Jonsson theory, elementary theory, core Jonsson theories, as well as their combinations that admit a core model in the class of existentially closed models of this theory. The concepts of convexity, perfectness of theory semantic model, existentially closed model, algebraic primeness of model of the considered theory, as well as the criterion of perfection and the concept of rheostat are considered in this article. On the basis of the research carried out, the authors formulated and proved a theorem about the (∇1, ∇2) − cl coreness of the model for some perfect, convex, complete for existential sentences, existentially prime Jonsson theory T.

scholarly journals An essential base of the central types of the convex theory

2021 ◽  
Vol 101 (1) ◽  
pp. 119-126
Author(s):  
A.R. Yeshkeyev ◽  
◽  
M.T. Omarova ◽  
Keyword(s):  
Universal Model ◽  
Closed Model ◽  
Strong Base ◽  
Existentially Closed ◽  
New Concepts ◽  
Homogeneous Models ◽  
Definable Type ◽  
Transcendental Theory

In this paper, we consider the model-theoretical properties of the essential base of the central types of convex theory. Also shows the connection between the center and Jonsson theory in permissible enrichment signatures. Moreover, the theories under consideration are hereditary. This article is divided into 2 sections: 1) an essential types and an essential base of central types (in this case, the concepts of an essential type and an essential base are defined using the Rudin-Keisler order on the set of central types of some hereditary Jonsson theory in the permissible enrichment); 2) the atomicity and the primeness of ϕ(x)-sets. In this paper, new concepts are introduced: the ϕ(x)-Jonsson set, the AP A-set, the AP A-existentially closed model, the ϕ(x)-convex theory, the ϕ(x)-transcendental theory, the AP A-transcendental theory. One of the ideas of this article refers to the fact that in the work of Mustafin T.G. it was noticed that any universal model of a quasi-transcendental theory with a strong base is saturated, but we generalized this result taking into account that: the concept of quasi-transcendence will be replaced by the ϕ(x)-transcendence, where ϕ(x) defines some Jonsson set; and the notion of a strong base is replaced by the notion of an essential base, but in a permissible enrichment of the hereditary Jonsson theory. The main result of our work shows that the number of fragments obtained under a closure of an algebraic or definable type does not exceed the number of homogeneous models of a some Jonsson theory, which is obtained as a result of a permissible enrichment of the hereditary Jonsson theory.

THE ISSUES OF NATIONAL SECURITY AND NUCLEAR DISARMAMENT IN THE WORK OF THE WORLD RUSSIAN PEOPLE'S COUNCIL IN THE 1990-S.

2020 ◽  
Vol 9 (3) ◽  
pp. 111-119
Author(s):  
Yu.Yu. IERUSALIMSKY ◽  
◽  
A.B. RUDAKOV ◽  
Keyword(s):  
National Security ◽  
Armed Forces ◽  
Nuclear Disarmament ◽  
Russian Orthodox Church ◽  
Security Issues ◽  
New Concepts ◽  
The Social ◽  
The World ◽  
Nuclear Component ◽  
The One

The article is devoted to the study of such an important aspect of the activities of the World Russian People's Council (until 1995 it was called the World Russian Council) in the 90-s of the 20-th century as a discussion of national security issues and nuclear disarmament. At that time, a number of political and public figures actively called for the nuclear disarmament of Russia. Founded in 1993, the World Russian Council called for the Russian Federation to maintain a reasonable balance between reducing the arms race and fighting for the resumption of detente in international relations, on the one hand, and maintaining a powerful nuclear component of the armed forces of the country, on the other. The resolutions of the World Russian Council and the World Russian People's Council on the problems of the new concepts formation of foreign policy and national security of Russia in the context of NATO's eastward movement are analyzed in the article. It also shows the relationship between the provisions of the WRNS on security and nuclear weapons issues with Chapter VIII of the «Fundamentals of the Social Concept of the Russian Orthodox Church».

scholarly journals O potrzebie rekonstrukcji przestrzeni badawczej w nauce o stosunkach międzynarodowych. Refleksje natury polityczno-normatywnej, systemowej i metaforycznej

2018 ◽  
pp. 25-38 ◽  
Author(s):  
Teresa ŁOŚ-NOWAK
Keyword(s):  
International Relations ◽  
Internal State ◽  
Current Theory ◽  
International Affairs ◽  
New Concepts ◽  
International Environment ◽  
The Social ◽  
The World ◽  
New Institutions ◽  
The Relationship

The world of the 21st century provides an intriguing space for academic reflection, offering new challenges and stimulating new concepts of international relations. In this context there emerges the significant question of the essence and direction of these concepts. They may entail deconstruction followed by a reconstruction of the research space in this field. Astrategy of resetting cannot be excluded here, either. Assuming that reconstruction is the appropriate solution there are significant issues of its scope and direction. If a total reset is considered rational we need to address the issue of what it should involve. This is a difficult question for researchers into international relations because it would mean that the hitherto achievements of this subject are being questioned. The post-positivist approach of numerous researchers, which manifests their response to the positivist methodology in the field of international relations, has not so far produced a unified methodological formula or a relatively coherent theory of international relations. Questions concerning the function of science, the nature of the social world (ontology) and the relationship between knowledge and the world (epistemology) remain open. Therefore, it may be worth going back to M. Wight’s provocative thesis that it is impossible to construct a reasonable theory of international relations, mainly owing to the dichotomy of the two fields of research that – in his opinion – cannot be overcome, namely the dichotomy of the ‘international’ (the realm of external affairs of states) and ‘internal’ (the realm of internal affairs within state), which are mutually exclusive because of their specificity; and once again ask the questions of how sensible the thesis of the dichotomy of both these environments is in a world that is strongly conditioned by the cross-border actors, interdependence and globalization. While the separateness of the ‘internal’ and ‘external’ state environments was, for Wight, an important obstacle, making it impossible to construct an academic theory explaining international relations, at the same time the current theory regarding their exclusivity in the context of the internalization of international affairs and the externalization of conditions inside states seems unsustainable. This phenomenon currently allows us to explain the imperative for combining these two environments, overlapping them …breaking down the old, established orders as a result of the now clearly visible phenomena and processes of the ‘internal state’ merging into the ‘international environment’ and vice versa, the disappearance of the traditional functions of borders, the weakening of old institutions and structures for steering the international environment as well as replacing them with entirely new institutions and structures.

Cytomegaloviral Infections: Epidemiology, Therapy, and Prevention

1985 ◽  
Vol 7 (6) ◽  
pp. 169-175
Author(s):  
George A. Nankervis
Keyword(s):  
Giant Cells ◽  
Varicella Zoster ◽  
Barr Virus ◽  
Current Review ◽  
New Concepts ◽  
The World ◽  
The Subject ◽  
Epstein Barr ◽  
Different Strains

The role of cytomegalovirus in human disease is a still-evolving story. Hanshaw presented an excellent review article on the subject in 1981 in this publication; this current review is an update, with particular emphasis on new concepts in the epidemiology and prevention of cytomegaloviral infection and disease. Historically, evidence of infection with cytomegalovirus was first reported by pathologists in many parts of the world. They noted the presence of giant cells with intranuclear inclusions while examining a diversity of organs microscopically. Isolation of the virus and development of serologic techniques eventually enabled a definitive study of the agent, its pathogenesis and epidemiology. Biologically, it is one of the herpesviruses and, as such, is a DNA virus. Other members of the group include varicella-zoster, herpes simplex, and Epstein-Barr virus. Several different strains of cytomegalovirus exist, and they have specific characteristics which are of interest. The virus is cell associated and tends to be very labile; it has a tendency to become latent and may possibly have malignant potential. EPIDEMIOLOGY Prevalence Infection with cytomegalovirus is found throughout the world. Studies of prevalence in a number of diverse populations have indicated that cytomegaloviral infection is ubiquitous. The major differences in prevalence between populations are related to the speed of acquisition of infection in various geographic and socioeconomic settings.

Using Semantic Web Concepts to Retrieve Specific Domain Information from the Web

2011 ◽  
pp. 249-270
Author(s):  
Rafael Cunha Cardoso ◽  
Fernando da Fonseca de Souza ◽  
Ana Carolina Salgado
Keyword(s):  
Information Retrieval ◽  
World Wide Web ◽  
Semantic Web ◽  
Web Sites ◽  
World Wide ◽  
Specific Domain ◽  
New Concepts ◽  
The World ◽  
Domain Information ◽  
The Web

Currently, systems dedicated to information retrieval/extraction perform an important role on fetching relevant and qualified information from the World Wide Web (WWW). The Semantic Web can be described as the Web’s future once it introduces a set of new concepts and tools. For instance, ontology is used to insert knowledge into contents of the current WWW to give meaning to such contents. This allows software agents to better understand the Web’s content meaning so that such agents can execute more complex and useful tasks to users. This work introduces an architecture that uses some Semantic Web concepts allied to Regular Expressions (REGEX) in order to develop a system that retrieves/extracts specific domain information from the Web. A prototype, based on such architecture, was developed to find information about offers announced on supermarkets Web sites.

The Semantic Web in Tourism

2011 ◽  
pp. 675-703 ◽  
Author(s):  
Salvador Miranda Lima ◽  
José Moreira
Keyword(s):  
World Wide Web ◽  
Semantic Web ◽  
Information Integration ◽  
World Wide ◽  
Global Information ◽  
Semantic Model ◽  
Current Trends ◽  
The World ◽  
Different Sources ◽  
Selection Of

The emergence of the World Wide Web made available massive amounts of data. This data, created and disseminated from many different sources, is prepared and linked in a way that is well-suited for display purposes, but automation, integration, interoperability or context-oriented search can hardly be implemented. Hence, the Semantic Web aims at promoting global information integration and semantic interoperability, through the use of metadata, ontologies and inference mechanisms. This chapter presents a Semantic Model for Tourism (SeMoT), designed for building Semantic Web enabled applications for the planning and management of touristic itineraries, taking into account the new requirements of more demanding and culturally evolved tourists. It includes an introduction to relevant tourism concepts, an overview of current trends in Web Semantics research and a presentation of the architecture, main features and a selection of representative ontologies that compose the SeMoT.

The terminology fund and features of the translation of the military Chinese sublanguage

2020 ◽  
pp. 46-56
Author(s):  
Maksim V. Mozharov ◽  
Roman D. Lopatin
Keyword(s):  
Chinese Language ◽  
Syntactic Features ◽  
Technical Base ◽  
New Concepts ◽  
Technical Vocabulary ◽  
Depth Analysis ◽  
The World ◽  
National Languages ◽  
The Military ◽  
Technical Revolution

Nowadays, at the time of rapid growth of various branches of science and technology, the evolution of national languages is also observed. Each separate language expands its vocabulary through the inclusion of new terms, words and expressions that appeared in the language with the beginning of the technical revolution in the military and civilian spheres. As a result of the process impact of production modernization and updating the technical base around the world, completely new concepts and terms have appeared that have a narrow specialization, complexity, and are professionally oriented. As a result of this, natural difficulties and peculiarities arise in the translation of technical vocabulary lead to the question of the need for streamlining and in-depth analysis, and comparison of polysyllabic lexical units of the terminological fund of the Chinese language for further reproduction of an adequate translation into English or Russian. We determine lexical features of the terminology of the military Chinese sublanguage, study the composition of its terminological fund and ways of replenishing vocabulary, as well as study the main features of the military Chinese sublanguage translation and analyze the lexical, stylistic and syntactic features of the translation of the military Chinese sublanguage.

Modern approaches to the treatment of Cushing’s disease

2016 ◽  
Vol 62 (4) ◽  
pp. 50-55
Author(s):  
Anna V. Andreeva ◽  
Natal'ja V. Markina ◽  
Mihail B. Antsiferov
Keyword(s):  
Cushing’S Disease ◽  
Pathological Process ◽  
Cushing's Disease ◽  
Central Type ◽  
Current State ◽  
The World ◽  
The Russian Federation ◽  
Multicenter Clinical Trials ◽  
Official Status ◽  
Methods Of Treatment

Traditionally the Cushing’s disease (CD) is considered a rare disease. Since 2012 СD has the official status of an orphan disease in the Russian Federation. Now prevalence of this disease in the world are from 1,5 to 3,9 cases of CD on 1 million people of the population. The reason of CD is the adenoma of a hypophysis (сortiсotropinoma). The “gold” standard of therapeutic tactics of patients with CD is the transsphenoidal surgery. However in 20% of cases after the radical treatment  fail to achieve remission of pathological process. Now in an arsenal of the neuroendocrinologist we have various methods of  therapy, including various methods of drug therapy. The focus of  preparations are central type action:  analogs of a somatostatin. The representative of this group of preparations is Pasireotid who has proved the efficiency by results of the multicenter clinical trials. This review  focuses of the current   state of knowledge about methods of treatment of CD, about new therapeutic opportunities with application of analogs of a somatostatin.

scholarly journals “Appropriate” Meanings and American Traits in Webster’s 1828 Dictionary

2021 ◽  
Vol 59 ◽  
pp. 51-64
Author(s):  
Virginia Meirelles
Keyword(s):  
English Language ◽  
Royal Academy ◽  
The United States ◽  
Universal Theory ◽  
Human Thought ◽  
New Concepts ◽  
The World ◽  
Divine Origin ◽  
Different Origins ◽  
National Languages

During the eighteenth century, many philosophers were attempting to determine the origin of language and to develop a universal theory of linguistics, but a debate at the Prussian Royal Academy questioned the endeavour by claiming that languages have different origins and that it is impossible to explain the progress of human thought by studying them because national languages influence the way their speakers see the world. In answer to that, Webster proposes that all modern languages have a common divine origin and that the universal truth could be accessed by studying etymology. He claims that words have an “absolute” significance, which, due to the development of the different languages, assumed meanings that are “appropriate” to each individual language. This article proposes that nationalism in the American Dictionary of the English Language is not represented by a substantial number of Americanisms, but by giving “appropriate” meaning that evidences how “absolute” significances evolved and came to characterize the United States. The article provides evidence to support that Webster’s lexicographic contribution is constituted by the new organization he gives to the entries and by definitions that show how old terms came to represent new concepts when compared to those in Samuel Johnson’s dictionary.

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