Biogeochemistry Of Uranium And Selenium - Regional Problem Of Ecology

Author(s):  
B. M. Djenbaev ◽  
V. V. Ermakov
Keyword(s):  
2020 ◽  
Vol 7 (3) ◽  
pp. 52-56
Author(s):  
MMATMATISA JALILOV ◽  
◽  
RUSTAM RAKHIMOV ◽  

This article discusses the analysis of the general equations of the transverse vibration of a piecewise homogeneous viscoelastic plate obtained in the “Oscillation of inlayer plates of constant thickness” [1]. In the present work on the basis of a mathematical method, the approached theory of fluctuation of the two-layer plates, based on plate consideration as three dimensional body, on exact statement of a three dimensional mathematical regional problem of fluctuation is stood at the external efforts causing cross-section fluctuations. The general equations of fluctuations of piecewise homogeneous viscoelastic plates of the constant thickness, described in work [1], are difficult on structure and contain derivatives of any order on coordinates x, y and time t and consequently are not suitable for the decision of applied problems and carrying out of engineering calculations. For the decision of applied problems instead of the general equations it is expedient to use confidants who include this or that final order on derivatives. The classical equations of cross-section fluctuation of a plate contain derivatives not above 4th order, and for piecewise homogeneous or two-layer plates the elementary approached equation of fluctuation is the equation of the sixth order. On the basis of the analytical decision of a problem the general and approached decisions of a problem are under construction, are deduced the equation of fluctuation of piecewise homogeneous two-layer plates taking into account rigid contact on border between layers, and also taking into account mechanical and rheological properties of a material of a plate. The received theoretical results for the decision of dynamic problems of cross-section fluctuation of piecewise homogeneous two-layer plates of a constant thickness taking into account viscous properties of their material allow to count more precisely the is intense-deformed status of plates at non-stationary external loadings.


1979 ◽  
Vol 13 (2) ◽  
pp. 233-243 ◽  
Author(s):  
Doreen Massey
Keyword(s):  

2008 ◽  
Vol 46 (3) ◽  
pp. 146-147
Author(s):  
Jyotsna Punj ◽  
Ravinder Pandey ◽  
Vanlal Darlong

2007 ◽  
Vol 41 (sup1) ◽  
pp. S49-S59 ◽  
Author(s):  
Doreen Massey
Keyword(s):  

2006 ◽  
Vol 31 (4) ◽  
pp. 1-8
Author(s):  
Ravindra H Dholakia

The problem of regional disparity in economic development in geographically large democratic countries gets inseparably linked with macro public policies and the economic philosophies behind them. Two such countries, India and Canada, are considered in this paper. Although the two countries share several common features, they differ considerably in the size of the population, nature of the federation, constitutional provisions defining property rights on minerals and revenue sharing arrangements between the centre and the states, and the economic philosophy behind the macro policies of the governments. This paper addresses the issue of regional imbalance under federal structure in a comparative perspective. The following variables are used to analyse the regional problem: worker rate capital productivity capital intensity industrial structure. The paper argues that free and barrier-less mobility of population and goods across the states in Canada has resulted in the regional problem getting diluted and less intense. In India, on the other hand, the economic philosophy behind macro policies has throughout been of direct intervention with emphasis on ensuring equity across regions. As a result, the problem of fiscal transfers from the centre to the states has become more complicated and less manageable in India than in Canada. The degree of autonomy and economic independence of provinces is far more in Canada than the states in India. Studies of regional disparity in the levels and rates of economic development in the two countries revealed that: capital intensity or capital-labour ratio was the major determinant of the regional disparity in the level of economic development technology or capital productivity was the main factor behind the disparity in regional growth rates. The government policies have to consider these findings while investing or encouraging investments in the lagging regions. The other revelations of the study are as follows: In India, the federal-fiscal transfers are used as a mechanism to address the regional problem through direct governmental intervention. In Canada, most tax-bases are directly shared by the centre and provinces with the rates differing. In India, the tax-bases are allocated to the centre and states by the constitution. The horizontal and vertical equity concepts are more relevant for Canada where both the layers of governments run in surplus and are not compelled to borrow in order to meet expenditures. In India, on the other hand, a majority of the states depend on the central government for borrowing due to their perennial deficits. In Canada, the provinces and the centre directly borrow from the market as per their credibility which is not the case in India where most states lack credibility in the market. Confusion regarding the notion of horizontal balance and regional equity leads the Indian political system to focus on the direct governmental intervention rather than market orientation. The Canadian experience suggests an urgent need to change the attitude, mindset, and philosophy behind the macro policies to achieve better and faster results on regional disparity reduction.


2018 ◽  
Vol 9 (1) ◽  
pp. 283-311
Author(s):  
Clive R. Symmons

It is generally accepted that UNCLOS applies to polar seas. However, particular problems can arise thereunder in such seas because of their ice-bound environment. One such regional problem is because global warming causes particular issues for insular formations there; not only in terms of the very definition of ‘islands’ (e.g., is frozen sea water equivalent to “land” in terms of above-surface appearance under Art. 121 [1] of UNCLOS?); but also in terms of their lawful use in generation of maritime zones therefrom. For example, in recent years new above-surface formations have been discovered in the Arctic (such as ‘Yaya Island’) because of glacial melting and sudden visibility. These formations may potentially generate new maritime zones for their owner State (albeit not EEZs/continental shelves because of Art. 121 [3] of UNCLOS); and may be opportunistically used in negotiation of maritime polar boundaries (as in the case of Tobias Island off Greenland). Where tips of glacial capes have been used as straight baseline points, any remaining terrestrial formations may be a useful ‘fall-back’ position on ice melt-down. Typically low-lying new terrestrial features (now uncovered by glaciers) may have no prospect of long-term existence above sea level; and some may have inherent mobility (as is a particular Arctic problem with ‘barrier islands’). The other side of the coin of polar ice melt-down is that existing low-lying and small islands will likely disappear with increasing sea levels; so causing problems of continued use as basepoints for generation of maritime zones; and a potential duty to retract maritime claims.


Significance Although an annual regional problem, this year's haze is particularly severe, and implies growing risks for businesses and governance. Impacts Concerns over haze could constrain Indonesian industrial agriculture development. Businesses suspected of causing haze will face greater Indonesian and Singaporean government scrutiny. Inability to tackle haze and fires will dent confidence in the Jokowi administration's bureaucratic reform capacity.


1963 ◽  
Vol 25 ◽  
pp. 40-57 ◽  
Author(s):  
M. F. W. Hemming

This is a reference article. It provides a background of figures on the causes and consequences of the present regional pattern of industry, employment and population; it gives an account of Government policy on regional problems over the past thirty years; and it summarises recent criticisms and suggestions.


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