Integrated Estimation of the Sustainability of Baltic and White Seas Ecosystems for Ensuring Environmental Safety of Shelf Resource Development

2021 ◽  
Vol 25 (1) ◽  
pp. 21-27
Author(s):  
V.V. Drozdov

Theoretical aspects of the stability of marine ecosystems under the influence of the dynamics of hydrometeorological conditions are considered. Groups of natural factors of the ecosystems of the Baltic and White seas defining a level of stability – biocenotical, dynamic hydrological, the dynamic oceanological and corresponding to them estimated indicator indices with assessment of their information significance are justified. Rating of values of indicator indices is executed. Three versions of the integral index of assessment of stability of AISE (integrated assessment of sustainable existence) based on accounting of 6, 9 and 15 indicators indices are developed. On the basis of the received integral estimates zoning of ecosystems of the Baltic and White seas in relation to their stability is executed. Need of accounting of a level of stability of specific water areas in the course of planning and implementation of sea economic activity – navigation, dredging operations, mounting of underwater infrastructure, industrial fishing is justified.

Author(s):  
Alisher Khodjimatov ◽  

The article is based on the multifactorial nature of the stability and dynamics of landscapes, especially the strong influence of human economic activity on the stability and dynamics of oasis landscapes.


Author(s):  
Рубен Косян ◽  
Ruben Kosyan ◽  
Viacheslav Krylenko ◽  
Viacheslav Krylenko

There are many types of coasts classifications that indicate main coastal features. As a rule, the "static" state of the coasts is considered regardless of their evolutionary features and ways to further transformation. Since the most part of the coastal zone studies aimed at ensuring of economic activity, it is clear that the classification of coast types should indicate total information required by the users. Accordingly, the coast classification should include the criterion, characterizing as dynamic features of the coast and the conditions and opportunities of economic activity. The coast classification, of course, should be based on geomorphological coast typification. Similar typification has been developed by leading scientists from Russia and can be used with minimal modifications. The authors propose to add to basic information (geomorphological type of coast) the evaluative part for each coast sector. It will include the estimation of the coast changes probability and the complexity of the coast stabilization for economic activity. This method will allow to assess the dynamics of specific coastal sections and the processes intensity and, as a result – the stability of the coastal area.


2021 ◽  
Vol 13 (3) ◽  
pp. 1326
Author(s):  
Hongfang Li ◽  
Huixiao Wang ◽  
Yaxue Yang ◽  
Ruxin Zhao

The interactions of water, energy, and food, which are essential resources for human survival, livelihoods, production, and development, constitute a water–energy–food (WEF) nexus. Applying symbiosis theory, the economic, social, and natural factors were considered at the same time in the WEF system, and we conducted a micro-level investigation focusing on the stability, coordination, and sustainability of the symbiotic units (water, energy, and food), and external environment of the WEF system in 36 prefecture-level cities across three northeastern provinces of China. Finally, we analyzed the synergistic safety and coupling coordination degree of the WEF system by the combination of stability, coordination, and sustainability, attending to the coordination relationship and influences of the external environment. The results indicated that the synergistic safety of the WEF system in three northeastern provinces need to equally pay attention to the stability, coordination, and sustainability of the WEF system, since their weights were 0.32, 0.36 and 0.32, respectively. During 2010–2016, the synergistic safety indexes of the WEF system ranged between 0.40 and 0.60, which was a state of boundary safety. In the current study, the coupling coordination degree of the WEF system fluctuated around a value of 0.6, maintaining a primary coordination level; while in the future of 2021–2026, it will decline to 0.57–0.60, dropping to a weak coordinated level. The conclusion could provide effective information for decision-makers to take suitable measures for the security development of a WEF system.


Author(s):  
Valeriya Yesina ◽  
◽  
Natalya Matvieieva ◽  
Dmitriy Novikov ◽  
◽  
...  

The article focuses on such a research area as human resources of the state. And their integrated assessment. The results obtained by type of economic activity are quite high, which is fully consistent with the dynamics of actual and future indicators. According to the Strategy of the state personnel policy, their content consists in: defining the tasks of the national personnel management system; development and implementation of a human development monitoring system; increasing labor productivity; calculation of efficiency and return on investment in human development; improving the national system of professional training taking into account the real needs of staff in the field of public administration, social and humanitarian sphere, key sectors of the economy, industry and agro-industrial complex. The procedure for analyzing human resources should begin with the choice of indicators. The final stage of the integrated long-term assessment of human resources is to determine the appropriate integrated indicator as a project component. The trends of each of the selected indicators for the calculation of the integrated indicator of human resources are constructed in the researched. Below are the equations of trends for the indicator "personnel costs of economic entities by type of economic activity", characterize, respectively, industry and construction and are presented in the form of exponential and linear relationships. This choice of trend equations is due to the dynamics of actual indicators.


2008 ◽  
Vol 8 (1) ◽  
pp. 75-96 ◽  
Author(s):  
Ludmila Fadejeva ◽  
Aleksejs Melihovs

Author(s):  
Kurt Sartorius ◽  
Benn Sartorius ◽  
Dino Zuccollo

Background: The ability of the Baltic Dry Index to predict economic activity has been evaluated in a number of developed and developing countries. Aim: Firstly, the article determines the primary factors driving the dynamics of the Baltic Dry Index (BDI) and, secondly, whether the BDI can predict future share price reactions on the Johannesburg Stock Exchange All Share Index (JSE ALSI), South Africa. Setting: This article investigates the dynamics and predictive properties of the BDI in South Africa between 1985 and 2016. Methods: The article uses a review of a wide range of published data and two time-series data sets to adopt a mixed methods approach. An inductive contents analysis is used to answer the first research question and a combination of a unit root test, correlation analysis and a Granger causality model is employed to test the second research question. Results: The results show that the BDI price is primarily driven by four underlying constructs that include the supply and demand for dry bulk shipping, as well as risk, cost and logistics management factors. Secondly, the results indicate a break in the BDI data set in July 2008 that influences a fundamental change in its relationship with the JSE ALSI index. In the pre-break period (1985 to 2008), the BDI is positively correlated with the ALSI (0.837, α = 0.05) before sharply diverging in the second period from August 2008 to 2016. In the first period, the BDI showed an optimal lag period of 6 months as a predictor of the ALSI index, but this predictive ability ceases after July 2008. The article makes a two-part contribution. Firstly, it demonstrates that the BDI is a useful predictor of future economic activity in an African developing country. Secondly, the BDI can be incorporated in government and industry sector planning models as a variable to assess future gross domestic product trends. Conclusion: The study confirms that the BDI is only a reliable indicator of future economic activity when the supply of shipping capacity is well matched with the demand.


Innotrans ◽  
2021 ◽  
pp. 14-20
Author(s):  
Vasiliy M. Say ◽  
◽  
Dariya Yu. Gorelova ◽  

The article proposes a method for selecting parameters based on correlation and regression analysis in order to further include significant variables in the equation of stability of an enterprise of an organizational network. The sample consists of ten businesses and ten hypothetical control points. Three subsystems are accepted for consideration: technical and economic (nine indicators), organizational and legal (seven indicators) and human resources (seven indicators of economic activity of a legal entity). The proposed methodology allows us to justify significant indicators for each of the three subsystems for determining the stability of network elements (enterprises), depending on the overall trend of production capacity: a successfully developing enterprise; a high-performing enterprise; a low-performing one. This method allows us to predict the possible volume of deliveries from enterprises - elements of the network. To achieve this goal, it is proposed to use the apparatus of multivariate analysis, in particular, correlation and regression analysis, which allows us to determine the presence of links and their closeness between factors, as well as the degree of influence on the studied value. The calculations were performed using the “Correlation” and “Regression” tools included in the “Data Analysis” package of the Microsoft Excel program.


Nanomaterials ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1353 ◽  
Author(s):  
Prosposito ◽  
Burratti ◽  
Bellingeri ◽  
Protano ◽  
Faleri ◽  
...  

In this work, hydrophilic silver nanoparticles (AgNPs), bifunctionalized with citrate (Cit) and L-cysteine (L-cys), were synthesized. The typical local surface plasmon resonance (LSPR) at λ max = 400 nm together with Dynamic Light Scattering (DLS) measurements (<2RH> = 8 ± 1 nm) and TEM studies (Ø = 5 ± 2 nm) confirmed the system nanodimension and the stability in water. Molecular and electronic structures of AgNPs were investigated by FTIR, SR-XPS, and NEXAFS techniques. We tested the system as plasmonic sensor in water with 16 different metal ions, finding sensitivity to Hg2+ in the range 1–10 ppm. After this first screening, the molecular and electronic structure of the AgNPs-Hg2+ conjugated system was deeply investigated by SR-XPS. Moreover, in view of AgNPs application as sensors in real water systems, environmental safety assessment (ecosafety) was performed by using standardized ecotoxicity bioassay as algal growth inhibition tests (OECD 201, ISO 10253:2006), coupled with determination of Ag+ release from the nanoparticles in fresh and marine aqueous exposure media, by means of ICP-MS. These latest studies confirmed low toxicity and low Ag+ release. Therefore, these ecosafe AgNPs demonstrate a great potential in selective detection of environmental Hg2+, which may attract a great interest for several biological research fields.


2009 ◽  
Vol 10 (3) ◽  
pp. 219-232 ◽  
Author(s):  
Mejra Festić ◽  
Sebastijan Repina ◽  
Alenka Kavkler

Rapid credit growth has been one of the most pervasive developments in recent years in Central and Eastern Europe. We tested for the significance of macroeconomic and banking sector variables that condition non‐performing loan ratios and the hypothesis of procyclicality between economic activity and improving banking‐sector results in the Baltic States, Bulgaria and Romania. The theory of procyclicality between economic activity and the non‐performing loan ratio was proven. The increased economic activity improved the loan portfolio quality of the banking sector, as indicated by a lower NPL ratio. Due to a high share of loans denominated in a foreign currency and the fact of productivity gains in the tradable sector, the appreciation of the real exchange rate contributed to an improvement in loan portfolio quality. The procyclicality of banking sector performance and high economic activities growth could be a signal of an economy overheating and therefore a slowdown in economic activity is likely to accelerate the growth of the non‐performing loan ratio in the Baltic States, Bulgaria and Romania.


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