24 research outputs found
Backward Stochastic PDEs Related to the Utility Maximization Problem
No full textWe study utility maximization problem for general utility functions using dynamic programming approach. We consider an incomplete financial market model, where the dynamics of asset prices are described by an Rd-valued continuous semimartingale. Under some regularity assumptions we derive backward stochastic partial differential equation (BSPDE) related directly to the primal problem and show that the strategy is optimal if and only if the corresponding wealth process satisfies a certain forward-SDE. As examples the cases of power, exponential and logarithmic utilities are consideredBackward stochastic partial dierential equation, utility maximization problem, semimartingale, incomplete markets
ATLAS OF THE MOON: (first part)
No full textThe first steps in the study of the Moon were the Moon explorations by means of manned spacecrafts started in the 1970s. The next step in studying the Moon must be manned expeditions, which will create first temporary bases on the Moon followed by the permanent bases. The problem of the Moon management by a human is associated with two objectives: first, living conditions must be created for the astronauts working at bases and second, the staging ground must be developed for the space flights of the second stage
Astronomy & Astrophysics (CAUCASUS)-VOLUME 1
No full text Our brief history
Our small university, in which 1,500 students are enrolled, is 26 years old. Initially, in 1990, Samtskhe-Javaketi State University was established as a branch of Ivane Javakhishvili Tbilisi State University. This establishment introduced and strengthened Tbilisi University traditions in Akhaltsikhe. From the beginning, we decided to pursue a scientific direction. The co-existence of learning and scientific development helped us to gain prominence in the region, which was a challenge during the economic, political, and social hardships of 1990s. From the outset, the local Georgian and non-Georgian population trusted us. Many collegiate, national, and international conferences were held at our University. Thus the University became the foundation of scientific intelligence of South Georgia.
The Abastumani Astrophysical Observatory was the only serious research institution in Samtskhe-Javakheti. It was known in scientific circles for its important scientific work. The University made close scientific contacts with the Observatory from the very first days of its existence.
Observatory staff started their pedagogical careers at our University. Academician Evgeni Kharadze, who led the Observatory from the date of its establishment, managed these relations and scientific contacts. At the same time, he was the rector of the Ivane Javakhishvili Tbilisi State University in 1959-1966. So, academic and scientific activities were very familiar to him.
In 1992, Evgeni Kharadze and George Tchoghoshvili supported the establishment of the Faculty of Mathematics and Astronomy at the Akhaltsikhe branch of Tbilisi State University. At the time, Revaz Chigladze was the head of the department.
Evkgeni Kharadze often visited the branch. Several times, he was a chairman of the State Examination Commission, where our graduates passed their final exams.
Professors Revaz Chigladze, Raguli Inasaridz , Lorand Sigua, Khvedri Inasaridze, Rolan Kiladze , Victor Japiashvil and others helped to promote close scientific and educational contacts between Astrophysical Observatory and the University. They worked in Akhaltsikhe and Abastumani. The geographical proximity of these two locations strengthened future research activities. Our university graduates Bidzina Kapanadze, Marekh Ivanidze and Diana Ivanidze defended their doctoral dissertations .
In 2014, Samtskhe-Javakheti State University was formed on base of the branch and the State Teaching University. Our doctoral program in astronomy was accredited, which was an important incentive, especially for the staff members who have done a lot of scientific work and have had many years of experience in astronomy, but could not manage to get their doctoral degrees due to the absence of the Doctoral Degree Defense Council. Among them are Givi Kimeridze, Eduard Janiashvili, Roman Ivanidze, Maia Sikharulidze, and others. In addition to our University professors, the Samtskhe-Javakheti Doctoral Council in Astronomy includes Javakhishvili and Ilia State University professors and researchers at the Abastumani Astrophysical Observatory. Samtskhe-Javakheti State University is the only university in Georgia that offers educational programs in astronomy at the Bachelor’s, Master’s, and Doctoral levels.
Scientists of the traditional Georgian Astronomical School have not had the opportunity to hold international scientific conferences in Georgia for many years. Samtskhe-Javakheti State University hosted an international conference on October 7-9, 2015. Conference organizers and participants decided to print the conference proceedings. Other scientists responded to this publication and expressed their desire to include their works in the publication. Our organization eagerly shared the relevant work, and today we have a collection of scientific works.
We want to thank all the authors, the organizational and editorial members of the group, the faculty of engineering, agricultural and natural sciences - Dean: Professor Giorgi Meskhi, Vice Rector Professor Maka Kachkachishvili-Beridze, Senior specialist Manana Ioseliani and especially, Editor Professor Revaz Chighladze, for their hard work.
Samtskhe-Javakheti State University Rector, Professor M. Beridz
რევაზ ინანიშვილის ლექსიკის ზოგი თავისებურება
No full textThe article looks upon some lexical peculiarities of “The Bird Shelterer” by Revaz Inanishvili – the collection published in 1978 (the publishing house “Merani”, Tbilisi). The collection is compiled from the miniatures and short stories. Revaz Inanishvili’s vocabulary is diverse. The words are taken from the real speech, and afterwards breathed new life. Particularly interesting are new lexical units created by the author, composites, which are made through various means. These often serve as a whole sentence, making phrases sound natural and sleek: gasukhebuli, davažk’acebuli, q’elgavsebuli; sophlis c’q’arosthan ħelk’ok’iani khalebi …dganan; cħenic k’iserdagrĵelebuli mohq’veboda; ise ševida šin, ikhac t’laħšerčenil pheħsacmelebze iq’ureboda. Revaz Inanishvili’s language is rich in both widespread phraseologisms as well as his own ones: šegiĵliath, q’uri athħovoth phothlis čamovardnis ħmas t’q’eši? Sanam akh gamomiq’vandnen, am ĵağlis saq’elosavith daundobel sophelši, khusli ar damidgia mic’isthvis, pheħis c’verebze davdiodi dedoph alivith; nuthu vera ħedavth,rom muclebi mogvekh ca thavze; amisthana ħarbi, sħvis th valši nacris mthvleli ħalħi meore arsad ikh neba kh veq’anaze. The author frequently addresses the forgotten lexical units and dialectisms: ise isadilos, gangias gasagisma! Deduna ħan ik’oħeboda da t’učebs busħavda, ħan th valebs abrc’q’inebda; [šeša]... k’edlis ĵiras aak’ok’oles; erthi p’at’ara mimq’udroebuli berikaci amoirčia;...gait’ena vagoni, mič’q’unes gogoc; šeč’ame eg k’erĵi, gaiq’ina da galelečda; čemi švilebis ħelši me q’velafersa var gamorčeuli; mašin gamoiğo čemma k’udianma dedamthilma ħuth asi th umani, nik’olozis phuli, dagunjalebuli… The major part of the lexical peculiarities, detected in the author’s speech, are those providing picturesque characteristic of a subject or a phenomenon
Hyperesthésie et apaisement: aspects historiques et psychologiques
No full textL'auteur fait une synthèse des contributions, actuelles ou passées, décrivant la tendance chez un individu à exacerber ses sensations (hyperesthésie), agréables ou douloureuses, y compris les éprouvés émotionnels. Il met l'accent sur l'effet antagoniste ou inhibiteur que les sensations peuvent avoir les unes sur les autres. Puisque l'angoisse implique, elle aussi, une dimension sensorielle, il insiste sur le but paradoxal d'apaisement et donc défensif qui peut motiver la recherche de sensations, en se référant à la notion de « procédé autocalmant » développée par l'école psychosomatique de Paris.¦Ce travail se divise en deux parties consacrées respectivement à l'enfant et à l'adulte, elles-mêmes déclinées sur deux versants, l'un « normal » et l'autre pathologique. Il y est question :¦- des comportements de l'enfant susceptibles d'être produits pour les sensations apaisantes qu'ils procurent : succion, ingestion d'aliments, balancement, masturbation, etc.¦- des auto-agressions dans certains troubles du développement de l'enfant et de l'adolescent¦- de l'hypersensibilité ou émotivité dans les typologies du tempérament ou du caractère proposées dans l'histoire; de la passion également, envisagée comme un embrasement lui aussi potentiellement défensif¦- de deux parmi les troubles de l'adulte qui ont le plus été décrits en termes d'hyperesthésie, à savoir l'hystérie et la manie.¦Il s'agit d'un travail théorique, qui intègre des aspects historiques, et qui peut servir de base à des explorations cliniques ou des recherches plus spécifiques.¦The author presents a summary of past and recent publications describing the disposition in the individual to exacerbate sensations (hyperesthesia), whether pleasurable or painful, including emotional experiences. He emphasizes the possible opposing or inhibiting action these sensations can have between them.¦As anxiety also implies a sensory dimension, the author underlines the paradoxically alleviating, and hence defensive purpose driving the pursuit of sensations, by reference to the notion of self-soothing procedures (procédés auto-calmants), conceptualized by the Paris Psychosomatic School.¦This work is divided into two parts focusing on childhood and adulthood respectively, each in its turn concentrating on both the « normal » and pathological aspects. Topics covered include:¦- behaviours that children may engage in for the soothing effects they produce ; sucking, consumption of food, rocking, masturbation, etc.¦- self-harm in some cases of developmental disorders in children and adolescents¦- hypersensibility and emotivity as described in historical temperament and character types ; passion, also regarded as another defensive excitement.¦- two of the most commonly described disorders of hyperesthesia in adults, namely hysteria and mania.¦This thesis constitutes a research of a theoretical nature. It integrates historical aspects, which can be used as a basis for clinical exploration or further more specific research
SOME ISSUES OF THE DIFFERENTIATION OF THE COMMON KARTVELIAN PARENT LANGUAGE. II
No full textThe common viewpoint in Kartvelology, which became the basis
for the “Deetersian scheme” of the differentiation of the Common
Kartvelian parent language, supporting the earlier separation of Svan
(M. Janashvili, G. Deeters), is mainly based on the analysis of different
morphological and lexical occurrences. The results of phonological
and, in general, complex historical-comparative research, which are
necessary for the reliable reconstruction of the ancient structural
model of kindred languages, are not taken into account. At the same
time, what is also important, the method of internal reconstruction
is not properly used, without which it becomes almost impossible to
determine the dynamics of diachronic changes of a separate language
(in this case – Svan).
The author believes that with the joint use of internal reconstruction
and historical-comparative methods, it is possible to explain the
peculiar linguistic occurrences in Svan, visibly different from Georgian
and Zan. In particular, the different linguistic facts existing in Svan at
the synchronic level do not in any way imply the same difference of
this material at the diachronic level as compared to the data of other
Kartvelian languages, since it seems that this difference is not the
result of the earlier separation of Svan from the Common Kartvelian
parent language, but – of the transformations carried out historically
in Svan itself. As it turns out, in Svan, unlike Georgian and Zan, the
phonetic changes (umlautization, affricatization, desaffricatization,
spirantization...) and hence the morphological and lexical changes were
so large-scale that Svan became a “specific language type”.
The author believes that the Common Kartvelian parent language
was initially divided into two linguistic units – Georgian and Zan-Svan
– since in Zan-Svan there are occurrences that are common to them,
but different from Georgian, especially – in phonology (for example,
the formation of back row consonants from front row ones as a result
of shifting the place of articulation...). At a later stage, Georgian still does not undergo structural changes that are very different from the
Common Kartvelian parent language, and in Zan-Svan a new stage of
such changes begins (vowel shifting to back in Zan, systemic phonetic
changes of consonants in Svan, as well as morphological and lexical
changes: simplification of auslaut in Svan, new ways of formation of
passive and participle forms in Svan...), as a result of which the Zan-Svan
linguistic unity breaks up into Zan (Megrelian-Laz) and Svan languages.
Taking into account both the above-mentioned and other
standpoints known in the Kartvelology, the author believes that the
differentiation scheme of the Common Kartvelian parent language can
be presented in the following form:
Common Kartvelian Parent Language:
Zan-Svan
Zan Svan Georgia
BASIC PRINCIPLES AND METHODS TO THE USE IMMUNOMODULATING PREPARATIONS IN CLINICAL PRACTICE: CLASSIFICATION, INDICATIONS AND CONTRAINDICATIONS
No full textThis paper is devoted to one of the most pressing issues in modern clinical medicine, the problem of immunomodulators and immunotropic therapy. The materials presented are the logical sequel of the papers published by Revaz I. Sepiashvili in 2001-2015. In these articles, the author proposed the first classification of immunotropic preparations, a brief historical background and chronological emergence of the concept of therapies, as well as definition of immunomodulators. This paper presents an updated classification of immunomodulatory drugs which is valid for January 2015. The paper also outlines basic principles for therapies that allow the clinician not only to select a proper immunomodulator but also to develop strategy and tactics in treatment of the patient, taking into account his/her individual characteristics and the need to use in clinical practice only officially registered immunotropic preparations
BASIC PRINCIPLES AND METHODS TO THE USE IMMUNOMODULATING PREPARATIONS IN CLINICAL PRACTICE: CLASSIFICATION, INDICATIONS AND CONTRAINDICATIONS
No full textThis paper is devoted to one of the most pressing issues in modern clinical medicine, the problem of immunomodulators and immunotropic therapy. The materials presented are the logical sequel of the papers published by Revaz I. Sepiashvili in 2001-2015. In these articles, the author proposed the first classification of immunotropic preparations, a brief historical background and chronological emergence of the concept of therapies, as well as definition of immunomodulators. This paper presents an updated classification of immunomodulatory drugs which is valid for January 2015. The paper also outlines basic principles for therapies that allow the clinician not only to select a proper immunomodulator but also to develop strategy and tactics in treatment of the patient, taking into account his/her individual characteristics and the need to use in clinical practice only officially registered immunotropic preparations
IMMUNOREHABILITOLOGY: A LOOK FROM THE SOURCES TO THE FUTURE. FROM IMMUNOTHERAPY TO PERSONALIZED TARGETED IMMUNOREHABLITATION
No full textDevelopment and introduction of modern clinical diagnostic tests (that allow to evaluate the functional system of immune homeostasis) into medical practice, a huge body of evidence on the leading role of the immune system in pathogenesis most acute and chronic diseases and even identification of specific nosological forms of immune-mediated diseases forced the scientists to search and develop new tools and techniques that have therapeutic effects on the impaired immune homeostasis and restore it to the normal state. The introduction of a new concept - immunorehabilitation - was an impetus for the accumulation of new knowledge and a catalyst for research in clinical immunology. It was Revaz Sepiashvili who breathed life into the concept of immunorehabilitation. He was lucky to be at its origi. He became not only the founder of the brand new scientific field - immunorehabilitation, but also the founder of a new medical science - immunorehablitology. In this paper, the author returns to the roots and recalls the way that medical science has gone before coming to understand immunorehablitology and tells readers about current successes and its development prospects
IMMUNOREHABILITOLOGY: A LOOK FROM THE SOURCES TO THE FUTURE. FROM IMMUNOTHERAPY TO PERSONALIZED TARGETED IMMUNOREHABLITATION
No full textDevelopment and introduction of modern clinical diagnostic tests (that allow to evaluate the functional system of immune homeostasis) into medical practice, a huge body of evidence on the leading role of the immune system in pathogenesis most acute and chronic diseases and even identification of specific nosological forms of immune-mediated diseases forced the scientists to search and develop new tools and techniques that have therapeutic effects on the impaired immune homeostasis and restore it to the normal state. The introduction of a new concept - immunorehabilitation - was an impetus for the accumulation of new knowledge and a catalyst for research in clinical immunology. It was Revaz Sepiashvili who breathed life into the concept of immunorehabilitation. He was lucky to be at its origi. He became not only the founder of the brand new scientific field - immunorehabilitation, but also the founder of a new medical science - immunorehablitology. In this paper, the author returns to the roots and recalls the way that medical science has gone before coming to understand immunorehablitology and tells readers about current successes and its development prospects
