A model for the three-dimensional evolution of continental rift basins, north-east Africa

1994 ◽  
Vol 83 (4) ◽  
Author(s):  
William Bosworth
Keyword(s):  
East Africa ◽  
Three Dimensional ◽  
Continental Rift ◽  
Rift Basins ◽  
North East

Terrestrial heat flow in the Malawi Rifted Zone, East Africa: Implications for tectono-thermal inheritance in continental rift basins

2019 ◽  
Vol 387 ◽  
pp. 106656 ◽  
Author(s):  
Emmanuel A. Njinju ◽  
Folarin Kolawole ◽  
Estella A. Atekwana ◽  
D. Sarah Stamps ◽  
Eliot A. Atekwana ◽  
...  
Keyword(s):  
Heat Flow ◽  
East Africa ◽  
Continental Rift ◽  
Rift Basins ◽  
Terrestrial Heat Flow

scholarly journals Radio Base Stations and Electromagnetic Fields: GIS Applications and Models for Identifying Possible Risk Factors and Areas Exposed. Some Exemplifications in Rome

2020 ◽  
Vol 10 (1) ◽  
pp. 3
Author(s):  
Cristiano Pesaresi ◽  
Davide Pavia
Keyword(s):  
Risk Factors ◽  
Electromagnetic Fields ◽  
Digital Health ◽  
Three Dimensional ◽  
Health Information System ◽  
Medical Geography ◽  
Base Stations ◽  
Buffer Zones ◽  
North East ◽  
Gis Applications

This paper—which is contextualized in the discussion on the methodological pluralism and the main topics of medical geography, the complexity theory in geographies of health, the remaking of medical geography and ad hoc systems of data elaboration—focuses on radio base stations (RBSs) as sources of electromagnetic fields, to provide GIS applications and simplifying-prudential models that are able to identify areas that could potentially be exposed to hazard. After highlighting some specific aspects regarding RBSs and their characteristics and summarizing the results of a number of studies concerning the possible effects of electromagnetic fields on health, we have taken an area of north-east Rome with a high population and building density as a case study, and we have provided some methodological and applicative exemplifications for different situations and types of antennas. Through specific functionalities and criteria, drawing inspiration from a precautionary principle, these exemplifications show some particular cases in order to support: possible risk factor identification, surveillance and spatial analysis; correlation analysis between potential risk factors and outbreak of diseases and symptoms; measurement campaigns in heavily exposed areas and buildings; education policies and prevention actions. From an operative viewpoint, we have: conducted some field surveys and recorded data and images with specific geotechnological and geomatics instruments; retraced the routes by geobrowsers and basemaps and harmonized and joined up the materials in a GIS environment; used different functions to define, on aero-satellite images, concentric circular buffer zones starting from each RBS, and geographically and geometrically delimited the connected areas subject to high and different exposure levels; produced digital applications and tested prime three-dimensional models, in addition to a video from a bird’s eye view perspective, able to show the buildings in the different buffer zones and which are subject to a hazard hierarchy due to exposure to an RBS. A similar GIS-based model—reproposable with methodological adjustments to other polluting sources—can make it possible to conceive a dynamic and multiscale digital system functional in terms of strategic planning, decision-making and public health promotion in a performant digital health information system.

Relations Between Neighbouring States in North-East Africa

1984 ◽  
Vol 22 (2) ◽  
pp. 273-285
Author(s):  
Peter Woodward
Keyword(s):  
East Africa ◽  
International Society ◽  
International Politics ◽  
International Order ◽  
International Dimension ◽  
North East ◽  
Pan Africanism ◽  
Foreign Politics ◽  
New States ◽  
Domestic Affairs

In recent years there has been a resurgence of interest in international politics in Africa. After the initial post-independence discussion of pan-Africanism the international dimension seemed overshadowed by the concern to account for domestic developments in many new states, and it is this imbalance which is now being redressed. Indeed, it has recently been argued by Robert Jackson and Carl Rosberg that, contrary to the situation elsewhere, Africa's international politics have assumed an order which is sadly lacking in the domestic affairs of many states: ‘At the level of international society, a framework of rules and conventions governing the relations of the states in the region has been bounded and sustained for almost two decades.’ If the contrast between internal anarchy and international order seems somewhat exaggerated, the distinction between domestic and foreign politics appears both conventional and appropriate.

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