scholarly journals In Memory of Vladimir Gerdt

Author(s):  
Victor F. Edneral

Center for Computational Methods in Applied Mathematics of RUDN, Professor V.P. Gerdt, whose passing was a great loss to the scientific center and the computer algebra community. The article provides biographical information about V.P. Gerdt, talks about his contribution to the development of computer algebra in Russia and the world. At the end there are the authors personal memories of V.P. Gerdt.

Author(s):  
Larisa Badmaevna Mandzhikova ◽  

Introduction.Dorje Soktunovich Bembeyev-Salmin is one of the famous representatives of the old Kalmyk intelligentsia, a linguist, orientalist, public and political figure. His scientific works and biographical information are preserved in the private archive of D. S. Bembeev-Salmin in the Scientific Archive of the Kalmyk Scientific Center of the Russian Academy of Sciences (F. 10). This archive contains 12 items of storage for 1959. Among them are translations of works by Russian writers to the Kalmyk language, manuscripts of the text «The Orthography of the Oirat-Mongolian writing», Kalmyk folk proverbs and sayings, triads, pentastichesrecorded by D. S. Bembeev-Salmin. Of particular interest are the triads ― «orchlngingurvnts»(‘that there are three in the world’), recorded by him in 1931, they are one of the varieties of Kalmyk riddles. The themes of the riddles of the triads are diverse: everyday life, house hold activities, material culture, nature, family and kinship relations, ethics. D. S. Bembeyev-Salmin translated some of the three verses himself. This determines the value of the materials collected by him and their introduction into scientific circulation. The full text of the manuscript materials is published for the first time in this article.


Land ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 501
Author(s):  
Xuege Wang ◽  
Fengqin Yan ◽  
Yinwei Zeng ◽  
Ming Chen ◽  
Bin He ◽  
...  

Extensive urbanization around the world has caused a great loss of farmland, which significantly impacts the ecosystem services provided by farmland. This study investigated the farmland loss due to urbanization in the Guangdong–Hong Kong–Macao Greater Bay Area (GBA) of China from 1980 to 2018 based on multiperiod datasets from the Land Use and Land Cover of China databases. Then, we calculated ecosystem service values (ESVs) of farmland using valuation methods to estimate the ecosystem service variations caused by urbanization in the study area. The results showed that 3711.3 km2 of farmland disappeared because of urbanization, and paddy fields suffered much higher losses than dry farmland. Most of the farmland was converted to urban residential land from 1980 to 2018. In the past 38 years, the ESV of farmland decreased by 5036.7 million yuan due to urbanization, with the highest loss of 2177.5 million yuan from 2000–2010. The hydrological regulation, food production and gas regulation of farmland decreased the most due to urbanization. The top five cities that had the largest total ESV loss of farmland caused by urbanization were Guangzhou, Dongguan, Foshan, Shenzhen and Huizhou. This study revealed that urbanization has increasingly become the dominant reason for farmland loss in the GBA. Our study suggests that governments should increase the construction of ecological cities and attractive countryside to protect farmland and improve the regional ESV.


Robotica ◽  
1997 ◽  
Vol 15 (2) ◽  
pp. 240-240
Author(s):  
J. Rose
Keyword(s):  

On September 2 1996, Professor Edmond Nicolau, an eminent cybernetician and great intellect, died aged 74. This was, indeed, a great loss to the world of science. I have also lost a devoted friend and active collaborator in the fields of cybernetics and systems, as well as a valuable member of the Editorial Board of Robotica.


Author(s):  
M. M. Barna ◽  
L. S. Barna

Yu. R. Sheliah-Sosonko, an outstanding Ukrainian scientist in the field of geobotany, phytocenology, floristry, phytogeography, phytosozology, ecology, a public figure, academician of the National Academy of Sciences of Ukraine, doctor of biological sciences, professor, honored worker of science and technology of Ukraine, laureate of the State Prize of Ukraine in the field of science and technology and the N.G. Kholodny Prize of the National Academy of Sciences of Ukraine, Head of the Department of Geobotany of the N.G. Kholodny Institute of Botany of the National Academy of Sciences of Ukraine passed away at the age of 87, on December 14, 2019. The main areas of scientific research of Yu. R. Sheliah-Sosonko include the development of typology, the composition of cenopopulation, cenogenesis and protection of nemoral forests of the European part of the USSR. The name of Yuri Romanovych Sheliah-Sosonko is associated with the research into the theory of geobotany and classification of vegetation, zoning, mapping, species association, evolution of vegetation cover. He developed a theory of the formation of the cenopopulation structure of species, as well as the classification of species and phytocoenotypes. He put forward and grounded the idea of phytocenogenetic classification of vegetation, the foundations of the evolutionary-cenotic study of vegetation formations. Under the supervision of Yurii Romanovych, the world’s first "Green Book of Ukraine" was compiled and published, laying the foundation for the Convention on Biodiversity. He was the first to suggest a method of paradigmatic analysis of geobotanical knowledge. The results of thorough geobotanical and phytocenological studies are summarized in the monographs: "Common oak forests on the territory of Ukraine and their evolution" (1974), "Methodology of geobotany", "Green Book of the Ukrainian SSR" (1987), "Red Book of Ukraine. Plant world "/ Yu. R. Sheliah-Sosonko (editor-in-chief) (1996) and others. He is the author of over 500 scientific works, including 34 monographs. He supervised 8 doctors and 37 candidates of biological sciences, and the scientific geobotanical school he founded is recognized by the world scientific community. The scientists, teachers and students of Ternopil Volodymyr Hnatiuk National Pedagogical University express their condolences. This is a great loss for the whole botanical science of Ukraine, Europe and the world. Finally, it should be mentioned that as long as there are such scientists as Academician Yurii Romanovych Sheliah-Sosonko and his grateful students, Ukrainian science will never cease to thrive. The memory of Academician of the National Academy of Sciences of Ukraine Yurii Romanovych Sheliah-Sosonko, an outstanding scientist-geobotanist, a public figure, a man of honour, will forever remain in the hearts of his relatives, friends, colleagues and students.


Author(s):  
Alain Goriely

Models are central to the world of applied mathematics. In its simplest sense, a model is an abstract representation of a system developed in order to answer specific questions or gain insight into a phenomenon. In general, we expect a model to be based on sound principles, to be mathematically consistent, and to have some predictive or insight value. Models are the ultimate form of quantification since all variables and parameters that appear must be properly defined and quantified for the equations to make sense. ‘Do you believe in models? Simplicity and complexity’ discusses the complexity of models; the steps involved in developing mathematical models—the physics paradigm; and collaborative mathematical modelling.


2020 ◽  
Vol 13 ◽  
pp. 72-82
Author(s):  
Stephen Perry ◽  

When we mathematically model natural phenomena, there is an assumption concerning how the mathematics relates to the actual phenomenon in question. This assumption is that mathematics represents the world by “mapping on” to it. I argue that this assumption of mapping, or correspondence between mathematics and natural phenomena, breaks down when we ignore the fine grain of our physical concepts. I show that this is a source of trouble for the mapping account of applied mathematics, using the case of Prandtl’s Boundary Layer solution to the Navier-Stokes equations.


2011 ◽  
Vol 44 ◽  
pp. 73-102 ◽  
Author(s):  
Ahmet Demirel

AbstractThis article examines the socio-economic background of the parliamentary deputies serving during the years of the national struggle (1920–1922) and the single-party era (1923–1946) and provides new statistical data collated from recently published, detailed biographical information. I will provide a critical analysis of the socio-economic background of the deputies elected to represent the eastern and southeastern regions of Turkey and offer localism—defined as being born in the and from the constituency one represents—as a key concept to allow a better understanding of the nature of the electoral process at that time. Although localism—which can be regarded as one of the important indicators of authentic representation—was extensive during the years of the national struggle, it was replaced by bureaucratic representation during the single-party era, especially starting with the 1927 elections held right after the Sheikh Sait Rebellion. The article relates the Kurdish rebellions to the problem of representation in parliament and shows that in the rebellions' aftermath the number of the local representatives rapidly decreased. It further documents that, with the introduction of multi-party politics and democratic, free, competitive elections after the World War II, a return to localism can be observed for the eastern and southeastern provinces of Turkey.


Vox Patrum ◽  
2014 ◽  
Vol 62 ◽  
pp. 73-80
Author(s):  
Jacek Bonarek

After the turbulent events of 1204 and after gaining the power by the Latins in Constantinople, Nicaea was supposed to become the center of post-Byzantine world as the capital of a country newly created by Theodore I Laskaris. It definitely fulfilled all the conditions to become the most significant town in the north-west­ern part of Asia Minor. The sovereigns from the Laskaris dynasty supported its development as well, although it must be emphasized that it was not the only cen­ter of their country. Next to Nicaea both Magnesia and Nymphaion need to be mentioned. Nicaea became an important cultural and scientific center of the new empire. Nevertheless, it was not an exceptional place as the distinguished represen­tatives of Byzantine scientific and cultural world lived also permanently in other towns (also in those towns which were under the Latins’ rule). What is more, the educational system of Nicaea was criticized (e.g. George – Gregory II of Cyprus). The last but one emperor, Theodore II Laskaris (1254-1258), tried to make Nicaea the only center of Byzantine Greeks country. Nevertheless, as early as three years after his death the Byzantine Greeks regained Constantinople, the real capital of the world, and Nicaea again became the center of secondary importance.


2021 ◽  
Vol 5 (II) ◽  
pp. 34-48

In this paper, we have argued that Lawrence’s interest in what is ancient wisdom brings him in direct or indirect contact with Sufi metaphysics. This outlook on the world brings him closer to a Sufi universe in two ways. Firstly, Lawrence portrays romantic relationships in a mystical language, he presents the sensuous relationships as sacred activities through which the characters aspire to self-discovery. Lawrence`s portrayal of romantic love corresponds with the higher concept of love in Sufi literature. Secondly, this paper takes a closer look at some of Lawrence’s spiritual works including his Study of Thomas Hardy to compare his sustained argument regarding spiritualism and transcendental motifs in comparison with Sufi cosmology. Moreover, the following discussion also includes a detailed engagement with Lawrence`s correspondence and biographical information of the time when Lawrence was writing his essays and novels which contain transcendental motifs. His correspondence and biographical information suggest he had some direct exposure to Sufi literature in translation. Keywords: mysticism, divinity, holistic vision, physical and spiritual connection, cosmology, transcendental, metaphysics, ontology


2020 ◽  
Author(s):  
Aigul Kosanova

Іn this article, the author examines the scientific heritage of the great thinker and philosopher of the East, Abu Nasir al Farabi. The contribution of the word is analysed. Abu Nasr Muhammad Ibn Tarkhan Ibn Uzlag al-Farabi (870-950) was born in the city of Farab (Otrar) on the territory of the modern South Kazakhstan region. In the early middle ages, Otrar was called Farab. The city of Otrar was the second major cultural, commercial, political and scientific center, the center of the ancient culture of Kazakhstan and Central Asia. The most famous of his scientific works is" treatise on the views of good citizens "("views of good citizens"). "The scientist divides the city leaders into "benevolent and ignorant". At that time, there was a city-state. When will its inhabitants be happy? According to the scientist, this depends on the mayors of the cities. If the mayor is educated, fair, and clean-minded, all citizens will be happy. And if the mayor of the city is ignorant and lies, then the people of the city will be unhappy. Al-Farabi says that in order to achieve true happiness, a person must constantly seek. Human behavior should also be good," Zhakypbek Altayevich says in the documentary "Al - Farabi-philosopher of civilization". In addition, Al-Farabi's work "the great treatise on music" has been translated into many languages of the world.


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