In the modern postindustrial world most countries are involved in globalization and regionalization processes. Therefore, regional development is becoming an important part of state policy. This paper studies the historical and geographical aspects of regional planning development in Japan in the post-war period. Special attention is drawn to the changes to the regional policy concept which have occurred in the last two decades: from the homogenous concept of developing all regions in the same way to the new multipolar trend, which emphasizes the most outstanding features and advantages of each particular region, its opportunities and strong points. The cases of two regions, Hokkaido and Tohoku, illustrate this policy and the relations between different levels of authorities and the main actors of regional policy implementation.
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Presently, there are a lot of observations on the significant impact of strong remote earthquakes on underground water and local seismicity. Teleseismic wave trains of strong earthquakes give rise to several hydraulic effects in boreholes, namely permanent water level changes and water level oscillations, which closely mimic the seismograms (hydroseismograms). Clear identical anomalies in the deep borehole water levels have been observed on a large part of the territory of Georgia during passing of the S and Love–Rayleigh teleseismic waves (including also multiple surface Rayleigh waves) of the 2011 Tohoku M9 earthquake. The analysis carried out in order to find dynamically triggered events (non-volcanic tremors) of the Tohoku earthquake by the accepted methodology has not revealed a clear tremor signature in the test area: the Caucasus and North Turkey. The possible mechanisms of some seismic signals of unknown origin observed during passage of teleseismic waves of Tohoku earthquake are discussed.
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