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Документ A review of soil NO transformation: Associated processes and possible physiological significance on organisms(2015) Medinets, Volodymyr I.; Skiba, Ute; Rennenberg, Heinz; Klaus, Butterbach-BahlNO emissions from soils and ecosystems are of outstanding importance for atmospheric chemistry. Here we review the current knowledge on processes involved in the formation and consumption of NO in soils, the importance of NO for the physiological functioning of different organisms, and for inter- and intra-species signaling and competition, e.g. in the rooting zone between microbes and plants. We also show that prokaryotes and eukaryotes are able to produce NO by multiple pathways and that unspecific enzymo-oxidative mechanisms of NO production are likely to occur in soils. Nitric oxide production in soils is not only linked to NO production by nitrifying and denitrifying microorganisms, but also linked to extracellular enzymes from a wide range of microorganisms. Further investigations are needed to clarify molecular mechanisms of NO production and consumption, its controlling factors, and the significance of NO as a regulator for microbial, animal and plant processes. Such process understanding is required to elucidate the importance of soils as sources (and sinks) for atmospheric NO.Документ Adsorption Hysteresis in Open Slit-like Micropores(2021) Drahan, Hryhorii S.; Kutarov, Volodymyr V.; Schieferstein, Eva; Iorgov, Alexander; Драган, Григорій Сильвестрович; Драган, Григорий Сильвестрович; Кутаров, Володимир Володимирович; Кутаров, Владимир ВладимировичAdsorption hysteresis in the low-pressure range is only rarely described in the literature. To optimise, for example, heat storage technologies, a deeper understanding of the low-pressure hysteresis (LPH) process is necessary. Here, two thermodynamically based approaches are further developed for analysing the LPH within the framework of thermodynamically irreversible processes and fractal geometry. With both methods developed, it is possible to obtain the description of the adsorption and desorption branches with high accuracy. Within the framework of the two thermodynamic models of the hysteresis loop, generalised equations are obtained with the control parameter in the form of the degree of irreversibility. This is done by taking the adsorption of water on alumina as an example. It is shown that the fractal dimension of the adsorption process is larger than the fractal dimension of the desorption branch, meaning that the phase state of the adsorbate is more symmetric during the adsorption step than in the desorption process.Документ Alignment of galaxies in subclustres placed in rich regions(2019) Korshunov, V.; Panko, Olena O.; Панько, Елена Алексеевна; Панько, Олена ОлексіївнаThe study of galaxies orientation is one of standard tests of galaxies formation scenarios. In filaments and walls the elliptical and disc galaxies chow different orientations (Joachimi et al., 2015).Документ Ambiemt NOx concentration above bare soil in southern Ukraine.(2013-05) Medinets, Sergiy V.; Medinets, Volodymyr I.; Butterbach-Bahl, K.; Gashe, R.; Pitsyk, Vasyl Z.; Skiba, U. M.; Пицык, Василий Зиновьевич; Піцик, Василь ЗіновійовичDetermination of NOx level at surface atmosphere is timely and urgent task for agricultural regions worldwide and was our main target during this study.Документ Analysis of biodiversity of phytoplankton on the Ukrainian Black Sea shelf (the end of XX – beginning of XXI century(Black Sea Scene, 2008-10) Dereziuk, Nataliia V.; Medinets, Volodymyr I.It is known, that global climatic changes influenced on all biological processes especially in marine environment. The main goal of our investigations was to find quantitative and correlation connections between climatic and phytoplankton community changes in the Black Sea during the last 30 years. As primary data, we used the results of processing of phytoplankton's samples collected in 1985-2007 in the framework of research and monitoring projects in the Ukrainian part of the Black Sea which carried out by the Ukrainian Scientific Centre of the Ecology of Sea and Odessa National Mechnikov University.Документ Analysis of near-earth resident space objects visibility conditions from optical ground stations(2019) Shakun, Leonid S.; Korobeinikova, E. A.; Koshkin, Nikolay I.; Kozhukhov, O.; Kozhukhov, D.; Piskun, O.; Strakhova, Svitlana I.; Кошкін, Микола Іванович; Кошкин, Николай ИвановичThe continuous monitoring of space object positions in near-Earth space is necessary for tasks of: -the collision prevention of an active satellite with other satellites or space debris objects; -the cleaning Near-Earth space from inactive satellites and space debris; -the planning of new satellite launches.Документ Astronegative archive of Odessa observatory. Large surveys with small telescopes(2019) Kashuba, S. V.; Bazyey, N. V.; Kashuba, V. I.; Andrievsky, Serhii M.; Андрієвський, Сергій Михайлович; Андриевский, Сергей МихайловичCurrently Observatory of I. I. Mechnikov Odessa National University owns collections of astronegatives obtained with its own instruments (about 100000 glass plates), as well as those obtained with instruments from other observatories (about 10000 plates). According to Bulgarian web-page WFPDB (wfpdb.org) Odessa collection of astroplates is second in Europe (after Sonneberg collection) and third in the world (after Harvard and Sonneberg). In this poster we describe the current condition of our collection and consider our plans for how to maintain this important astronomical heritage. We are also discussing our first steps in digitizing part of a collection in accordance with the decision of the world virtual observatory and WFPDB standards.Документ ATLAS of light curves of space objects(2018) Koshkin, Nikolay I.; Кошкин, Николай Иванович; Кошкін, Микола ІвановичATLAS of light curves of space objectsДокумент Atlas of light curves of space objects(2016) Koshkin, Nikolay I.; Кошкін, Микола Іванович; Кошкин, Николай ИвановичДокумент ATLAS of light curves of space objects(2021) Koshkin, Nikolay I.; Shakun, Leonid S.; Korobeinikova, E. A.; Strakhova, S. L.; Melikyants, S. M.; Terpan, S. S.; Golubovskaya, T. A.; Dragomiretsky, V. V.; Ryabov, A. V.; Кошкін, Микола Іванович; Кошкин, Николай ИвановичДокумент Bacterioplankton of Water-Bodies in the Lower Dnister Basin(Odessa: Pechatnyi Dom, 2011, 2011-06) Medinets, Sergiy V.; Kovalova, Nataliia V.Bacterioplankton is among to the most important components of aquatic ecosystems as organic matter microbiological transformation is one of the main self-purification and natural water’s quality formation processes. Regional Centre for Integrated Monitoring and Ecological Studies, Odessa National I.I.Mechnikov University, is carrying out field surveys in the Lower Dnister basin since 2003. One of activities during surveys is observation of bacterioplankton spatial distribution and seasonal dynamics its of number and biomass in all main water-bodies in the area: Kuchurganskiy Liman (estuary), Rivers Dnister and Turunchuk, lakes Beloye, Svinoye and Tudorovo, as well as the Dnistrovskiy Liman (estuary). Besides, there are three monitoring points in the Dnister and Turunchuk Rivers where observations of bacterioplankton quantitative characteristics are done all year round.Документ Biodiversity of Ichthyofauna in the Coastal Waters of the Zmiinyi Island(Black Sea SCENE, 2011-11) Snigirov, Sergii M.; Снігірьов, Сергій Михайлович; Снигирев, Сергей МихайловичZmiinyi Island is the unique natural complex in the North-Western Black Sea. Its coastal waters are notable for their significant biodiversity, which had formed the basis for General Zoological Protected Area of national significance establishing in the area in 1998. The objective of this work is the studies of ichthyofauna biodiversity dynamics in the coastal waters of the Zmiinyi Island in 2003-2010 and revealing of the factors influencing the biodiversity. Ichthyological studies had been carried out in accordance with the national methodology using stake nets in 2003-2010. Altogether 500 stake-net catches had been studies. Visual underwater observations with the help of lightweight diving outfit had also been used. Studying the biodiversity of ichthyofauna we used three indices of communities' species composition: Margalef's species richness, Shannon's total diversity index and Pielou's evenness index. Results of ichthyological observations had been discussed.Документ Biodiversity of Ichthyofauna in the Coastal Waters of the Zmiinyi Island in 2004-2010(2011-06) Snigirov, Sergii M.; Снигирев, Сергей Михайлович; Снігірьов, Сергій МихайловичStudies of biodiversity dynamics under anthropogenic pressure are of unquestioned timeliness. Their analyses enable us to assess interaction of natural and anthropogenic processes in a water-body, determine level of environmental pollution, elaborate and test modern methods of to assess the state of ecosystem, forecast probable changes in natural communities. The objective of this work is to study ichthyofauna biodiversity around the Zmiinyi Island using different indices. The material used had been collected processing ichthyological samples from the coastal waters of the Zmiinyi Island during the period from 2004 to 2010. Studying the diversity of ichthyofauna we used three indices of communities’ species composition, calculated according to generally accepted formulas: Margalef’s species richness, Shannon’s total diversity index and Pielou’s evenness index. The indices were calculated coming out of number.Документ Biodiversity of Ichthyofauna in the Dniеster Delta(Institute of Geography, Romania, 2014) Snigirov, Sergii M.The List of current Lower Dniеster fishes comprising 65 fish species belonging to 12 orders, 17 families and 52 genera is presented in the paper in a comparative approach. Analysis of the Lower Dniеster and the Dniеster Liman ichthyofauna structural characteristics has been carried out under conditions of regulated discharge, increasing pollution and spawning grounds degradation. Decrease in fish species composition has been shown, as well as the disappearance of some native reophilic and lithophilous fish species as the result of the Dniеster River discharge regulation. Data about rare species found in the Dniеster River and the Dniеster Liman are presented, including Benthophiloides brauneri Beling et Iljin, 1927, which has not been recorded in the Lower Dniеster before. The dwindling of catches of the main commercial fish species is also shown.Документ Biodiversity of ichthyofauna in the Lower Dniester river(Danube Delta Tehnological Information Center Publishing House, Tulcea, Romania, 2014) Snigirov, Sergii M.Results of anthropogenic pressure on the Dniester River, as well as in its water-bodies have been described: decrease of fish species composition 1.2 time, 2.3 times decrease of rare indigenous fish species, decrease of number of reophilic, lithophilous and psammophilous fish species. In connection with species composition negative transformation and 2.0-3.0 times decrease of commercial catches in the Lower Dniester the urgent measures are required for strengthening of fish resources protection, restoration of stock and improvement of the Lower Dniester ecosystem’s environmental health in general.Документ Black Sea Dinoflagellata (History of the Research and Current Biodiversity)(2012) Krakhmalny, A.; Bryantseva, Yu.; Velikova, V.; Sergeeva, O.; Skuratova, K.; Dereziuk, Nataliia V.For centuries scientists in many disciplines have engaged in extensive exploration of the Black Sea biodiversity. For instance, investigations on Black Sea algae date back to 1866. Traditionally, the Black Sea was considered relatively poor in species richness compared to many other seas. However, recent investigations had shown that there was a need to seriously revise our perception of Black Sea species variety, especially of phytoplankton diversity. Many exciting advances in the studying of microalgae have taken place in the last decade, as new theoretical frameworks have been identified, new technologies to observe organisms in the field and the laboratory have been developed. Hence, new data were analysed leading to discovering numerous unknown previously phytoplankton species for the Black Sea or correcting the taxonomic descriptions of the familiar species in line with the changes in modern taxonomy. Consequently, a major revision of the check list of Black Sea phytoplankton species was undertaken. This paper presents the history of Black Sea dinoflagellates research and the most comprehensive inventory so far prepared for them. So far, the dinoflagellates check-list compiled consists of 456 species, 467 varieties and forms, including well-known, and more than 200 new species which have been reported during the last two decades. To date, representatives of 10 orders, 37 families and 79 genera of dinoflagellates have been found in the Black Sea. The most diverse order is Gymnodiniales, followed by Peridiniales, Gonyaulacales, Dinophysiales, Prorocentrales, Noctilucales, Ptychodiscales, Phytodiniales, Suessiales, and a few specimen still remain unidentified, as they most probably belong to currently unspecified genera. As the phytoplankton taxonomy develops fast nowadays and new species are being constantly found, the Black Sea check-list of dinoflagellates (http://phyto.bss.ibss.org.ua/wiki/Main_Page) is under regular update and will be annually updated.Документ BLACK SOILS DEGRADATION IN THE SOUTH-WESTERN BLACK SEA REGION AT IRRIGATION AND IN THE POST-IRRIGATION PERIOD(Academy of Sciences of Moldova, 2012-03) Bilanchyn, Yaroslav M.; Rezvaya, Svetlana; Біланчин, Ярослав Михайлович; Биланчин, Ярослав МихайловичThe objective of the paper is to reveal the essence and ecological & soil consequences of the processes of degradation of the black soils in the south-western Black Sea region at irrigation and in the current post-irrigation period of their evolution, development of measures to prevent soil degradation processes in the irrigated massifs and to increase their fertility.Документ BLACK SOILS DEGRADATION IN THE SOUTH-WESTERN BLACK SEA REGION AT IRRIGATION AND IN THE POST-IRRIGATION PERIOD(Academy of Sciences of Moldova, 2012-03) Bilanchyn, Yaroslav M.; Rezvaya, Svetlana; Medinets, Volodymyr I.; Біланчин, Ярослав Михайлович; Биланчин, Ярослав МихайловичMany years studies of process of changes in composition, properties and fertility of the black soils of the Norh-Western Black Sea area in Ukraine with irrigation have revealed mobility of carbonates and humus in them, decrease of capacity of cationic consumption and content of consumed calcium, increase of share of consumed magnesium and sodium. Indicators of agro-physical state of sails under irrigation conditions are worsening significantly. In the last 15-20 years, due to sharp decrease in area of irrigated fields an extensification of agriculture the display of agrophysical solonetzicity of previously irrigated lands is strengthening, as well as processes of their dehumification: indicators of ecological&agrochemical state are degrading. Substantiated is the system or ago-amelioration measures aimed to prevent from degradation processes of irrigated black soil missives and increase their fertility.Документ Bluefish Pomatomus saltatrix (L., 1766) horse mackerel Trachurus mediterraneus ponticus Aleev, 1956 diet in the Zmiinyi Island coastal waters(Black Sea Scene, 2013-10) Snigirov, Sergii M.The aim of this work was to study the peculiarities of bluefish Pomatomus saltatrix and horse mackerel Trachurus mediteraneus ponticus diet in the Zmiinyi Island coastal waters. Material was collected in 2003 and 2012.Документ Catalogue of energy distributions in spectra of radiation of stars in the visible range(Odessa I.I. Mechnikov National University, 2018) Dragunova, Alina V.The spectral energy distributions Eλ for 360 stars in wavelength region from λ330 to λ 725 nm are presented in a digital type.