The capacity of Kaliningrad hotel services market
This article analyses Kaliningrad hotel market through examining the level of incoming tourism in 2000–2010. The authors calculate the critical
zone of hotel room availability in Kaliningrad and the maximum number of tourists that can be accommodated in the city
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Вавилова В.
Е.
Основы международного туризма. М.,
2005.
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Квартальнов В.
А.
Туризм. М., 2002.
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Наумов С.
А.
Экономика и предпринимательство в социально-культурном сервисе и туризме. Томск, 2003.
4.
Чурикова Г.
С...
On physicochemical properties of microalgae of the Baltic Sea
Microalgae are common in soil, marine and freshwater ecological systems. They are able to accumulate valuable biologically active substances in the course of life. At present, microalgae have not been studied well enough. Thus, the purpose of this project was to study the physicochemical properties of microalgae of the Baltic Sea in the Kaliningrad region. The amount of protein was determined by the Bradford method, while lipids were assessed by the Folch method. As a result of the work, it was proved...
. Increased synthesis of secondary metabolites in the culture of bearded roots of Hyssopus officinalis L
The research evaluates the effect of amino acids (phenylalanine and tyrosine) on the growth and content of biologically active substances in the culture of bearded roots of Hyssopys officinalis. The study of the effect of amino acids on the growth of raw biomass of bearded roots of H. officinalis showed that when phenylalanine and tyrosine were introduced into the nutrient medium at a concentration of 1 μM, the maximum increase in biomass was observed. The content of biologically active substances...
Peculiarities of obtaining fodder amino acids when culturing Corynebacterium on soybean melasse
Currently, soybeans and soybean derivatives are widely used for food and animal feed. A significant content of carbohydrates in soy molasses makes it possible to use it as a component of a nutrient medium for cultivating microorganisms that produce feed amino acids. The aim of this work was to study the process of biosynthesis of feed amino acids on a soy molasses medium using bacterial strains of the genus Corynebacterium glutamicum. The following research methods were used: microscopy, spectrometry...
Macrophytes of the Russian part of the Kaliningrad Bay / Vistula Lagoon (Baltic Sea basin)
The authors study the modern composition of the macrophyte flora of the Kaliningrad Bay (The Russian part of the Vistula Lagoon), which includes 116 species: 96 species of vascular plants and 20 species of macroalgae. Only 39 species of macrophytes were found in 2021, i. e., 19 species of higher plants and 20 species of macroalgae. Depending on the abiotic factors in the four hydrological regions of the lagoon, the floristic diversity and distribution of macrophytes has its own characteristics....
Plants of the genus Acer L. in the Kaliningrad regional dendroflora
... Biomorphological and ecotypic structures have been identified; an assessment of environmental plasticity and the prospects for their further introduction has been carried out. It is recommended to supplement the list of cultural areas for 3 new species (A. mono Maxim., A. semenovii Regel et Herd, A. ukurunduese Trautv. et Mey.).
1. Виноградова Ю. К., Майоров С. Р., Хорун Л. В. Черная книга флоры Средней России: чужеродные виды растений ...
Chlorophyll «a» concentration in the South-Eastern Baltic Sea in summer 2018 (on satellite data)
The study focuses on chlorophyll "a"concentration variability in the South-Eastern part of the Baltic sea in summer 2018. The data of the MODIS radiometer installed on Aqua and Terra satellites were used for the analysis. The average concentration of chlorophyll "a" in the warm period of 2018 (May-August) was 3.8 mg/m3 while the average sea surface temperature was 17.7° С. The Maximum concentration of chlorophyll "a" (8.1 mg/m3) was recorded in May. However, the most...
The environmental impact of agriculture on the ecological status of water bodies in peripheral districts of the Kaliningrad region
The article analyses the environmental impact of agriculture on the ecological status of river basins in four peripheral districts of the Kaliningrad region (Pravdinsky, Ozersky, Nesterovsky and Krasnoznamensky). The author studied the current condition of agriculture in the considered districts. In the study the established methodology for assessing the quality of water bodies was used to define the ecological state of watercourses in four peripheral districts considering the nutrient impact...
Liver shear wave elastography: the problem of accuracy and reproducibility
The article reviews the influence of various factors on the accuracy and reproducibility of liver stiffness measurements using shear wave elastography (SWE), as well as on the reliability of judgments about the norm and pathology. The tasks included analyzing the factors affecting the accuracy of measurements of liver stiffness depending on the equipment; testing various SWE techniques for their advantages and disadvantages; identifying the factors depending on the patient (body mass index, gender...
The effect of volatile organic compounds on the content of photosynthetic pigments in reed fescue leaves Festuca arundinacea Schreb. in experiment terms (for example, limit, aromatic hydrocarbons and esters)
The article presents the results of the photosynthetic pigments content analysis (chlorophyll a, b and carotenoids) in the leaves of one of the most common representatives of the urban herbaceous plants — reed fescue Festuca arundinacea Schreb., in controlled experimental conditions. The content of pigments in the leaves in one day after treatment with organic compounds sharply decreases compared to three days occurred after treatment with pentane, hexane, benzene, as well as mixtures of pentane...
On the benthic foraminifera species of Alabaminella weddellensis and Epistominella exigua in paleo-oceanologic reconstructions
... distribution in the sediments during last 300 thousand years. These areas belong to the oligotrophic ecosystems of the open ocean, remote from the upwelling regions and located outside the seasonal ice cove zones. It is shown that unlike E. exigua, the maximal content of the species A. weddellensis corresponds to the intervals characterized by increased species diversity and, probably, more productive conditions.
1. Кулешова Л. А., Овсепян Е. А., Иванова Е. В. Палеоокеанологические ...
Metal accumulation in urban ecosystem plants
The paper presents the results of a study of metal accumulation (Cu, Zn, Mn, Sr, Ni, Ca, Fe, Br, Rb) in the leaves of trees, shrubs, and herbaceous plants (a total of 22 species) in the urban environment of Kaliningrad. The study area includes major geochemical landscapes – residential, industrial, and recreational districts. The background concentration of metals in plants is studied. The study establishes the presence of significant anthropogenic sources of metal pollution of vegetation in Kaliningrad...
The environmental aspects of the great cormorant’s (Phalacrocorax carbo L.) nest location on the coast of the Curonian Lagoon of the Baltic Sea
This article explores the features of the cormorant’s nest locations on alder at two breeding colonies on the coast of the Curonian Lagoon. Based on an analysis of over 10,000 nests, three types of nest locations were identified:forks of tree trunks and large branches, medium-sized crown branches, and tops of broken trunks. It is shown that, in older and more numerous colonies, nests are located much lower, whereas the variability in nest distribution reaches it maximum. In the newly formed small...
The prognostic characteristics of storm floods in the mouth of the River Pregolya (in the Kaliningrad region)
This article offers an analysis of a series of maximum values of annual levels in 1950-2009 and historical maximums of storm onsets in Kaliningrad. The authors calculated the linear trend equation and identified the duration of onset cycles. The article offers a forecast for 2016.
1. Любимова О. Е., Иванов С. Н., Бережный Б. Д. Анализ динамики уровня в устьевой зоне р. Преголи у г. Калининграда // Проблемы управления социально-экономическими процессами регионов : матер. VI междунар. науч.-практ...
The assessment of the antioxidant status of medicinal plants from the collection of the botanical garden of the Immanuel Kant Baltic Federal University (Kaliningrad)
This article analyses the content of phenolic antioxidants and ascorbic acid in medicinal plants of 66 species from 31 families. The study identified palnt species with a maximum content of biologically active compounds (phenolic antioxidants and ascorbic acid) and high antioxidant activity. These plants can be used as a basis for the creation of innovative functional food products
that have high antioxidant activity.
1. Miliauskas G., Venskutonis P. R., Beek T. A. Screening of radical scavenging...
The spectral characteristics of shadow response in mature adults of Lymnaea stagnalis
Comparative research on spectral dependence between the appearance of shadow defensive reflex in intact and eyeless adults of Lymnaea stagnalis proved the excitatory role of dermal photoreception and the inhibitory role of the ocular one. The shape of the curve and the modified spectral maximum of the absorption of dermal light-sensitive pigment (490 nanometers) allow the authors to suppose the presence of rhodopsin-like pigment in dermal photoreceptors.
1.
Жуков В.
В.,
Король Е.
В.
Исследование...
The variations in the water level of the Pregel River in Kaliningrad (1996-2008)
The critical water levels, rises and falls of the Pregolya River are determined on the basis of daily observations performed at the "Vityaz" museum vessel in 1996—2008. The observed phenomena reveal maximum frequency in autumn and winter.
1
. Абрамов Р.
В., Гущин О.
А., Стрюк В.
Л.
Особенности экологической обстановки в точке стояния «Витязя» // Известия Русского геогр. общ-ва. 2000. Т. 132, вып. 5. С. 67-74.
2
. Бережный Б.
Д.,
Казачкина Л.
И., Красильников С...
Commodity flow model for an exclave region: Rent-seeking in the ‘transitional period’ of the special economic zone
... Years: Experience Using REMI Policy Insight. In: Evaluating Local Economic and Employment Development: How
to Assess What Works Among Programmes and Policies. OECD, Paris, p. 151—190.
13. Wilson, A. G. 1970, Inter-regional Commodity Flows: Entropy Maximizing Approaches, Geographical Analysis, no. 2(3), p. 225—282.
14. Animitsa, E. G. (ed.), 2008, Region v social'no-jekonomicheskom prostranstve Rossii: analiz, dinamika, mehanizm upravlenija [Region in the socio-economic
space of Russia: analysis,...
Lithuania of the 11th—14th centuries in the works of Russian historians of the 1850—1870s
... occupy the Grand Duchy of Lithuania], Saint Petersburg, Tipografija
Jekspedicii zagotovlenija gosudarstvennyh bumag.
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Megem Maxim, Wakar Marcin
10.5922/2079-8555-2012-1-13
108-115
historiography, history of Lithuania, Grand Duchy of Lithuania, I. D. Belyaev, K. N. Bestuzhev-Rumin, N. I. Kostomarov, M. O. Koyalovich
Twin cities: a new form of cross-border cooperation in the Baltic Sea Region?
The paper demonstrates the first attempt in Russian political studies to conduct a comprehensive analysis of the “twin city” movement as a form of cross-border cooperation in the Baltic region. This phenomenon emerged as a result of a global tendency towards more active involvement of municipal units in international cooperation, on the one hand, and aspirations of frontier cities and towns in the Baltic region to solve common problems together, on the other hand. This work is based on a comparative...
The research and technology development in Lithuania and the prospects of research and technology cooperation between Lithuania and the Russian Federation
... strategiją 2010—2020 m. [online] Available at: <http://www. delfi. lt/news/economy/business/vyriausybe-patvirtino-lietuvos-inova ciju-strategija-20102020-m.d?id=29040759> (Accessed 31 January 2011).
Zverev Yuri, Batorshina Irina, Megem Maxim
10.5922/2079-8555-2011-2-6
49-55
Lithuania, Russian Federation, research and technology development, innovation development, innovation policy, innovation strategy
The basic patterns of the distribution, migration and accumulation of radionuclides in the bottom sediment of the Baltic Sea
... kore. Leningrad.
16. Tishkov, V. P., Ivanova, L. M., Ikjahejmonen, T. K. (Ed.). 1994. Issledovanija radioaktivnyh vewestv v Baltijskom more v 1988—1989 gg. Moskow.
17. Florov, V. T. 1993. Litologija. Kn. 2. Moskow.
Grigoryev Andrey, Vladimirov Maxim
10.5922/2079-8555-2011-1-7
54-60
radionuclide distribution patterns, Baltic Sea, hydromica, pH barrier, sediment fractions, grain-size composition
