A Fusion IP/DVB Networking Environment for Providing Always-On Connectivity and Triple-Play Services to Urban and Rural Areas

IEEE Network ◽  
2007 ◽  
Vol 21 (2) ◽  
pp. 21-27 ◽  
Author(s):  
George Mastorakis ◽  
George Kormentzas ◽  
Evangelos Pallis
Keyword(s):  
Rural Areas ◽  
Triple Play ◽  
Triple Play Services ◽  
Urban And Rural Areas

scholarly journals Hybrid Terrestrial-Satellite DVB/IP Infrastructure in Overlay Constellations for Triple-Play Services Access in Rural Areas

2010 ◽  
Vol 2010 ◽  
pp. 1-11 ◽  
Author(s):  
E. Pallis ◽  
D. Negru ◽  
A. Bourdena
Keyword(s):  
Rural Areas ◽  
Urban Areas ◽  
National Level ◽  
Experimental Tests ◽  
Intermediate Node ◽  
The Core ◽  
Triple Play ◽  
Digital Broadcasting ◽  
Triple Play Services ◽  
And Performance

This paper discusses the convergence of digital broadcasting and Internet technologies, by elaborating on the design, implementation, and performance evaluation of a hybrid terrestrial/satellite networking infrastructure, enabling triple-play services access in rural areas. At local/district level, the paper proposes the exploitation of DVB-T platforms in regenerative configurations for creating terrestrial DVB/IP backhaul between the core backbone (in urban areas) and a number of intermediate communication nodes distributed within the DVB-T broadcasting footprint (in rural areas). In this way, triple play services that are available at the core backbone, are transferred via the regenerative DVB-T/IP backhaul to the entire district and can be accessed by rural users via the corresponding intermediate node. On the other hand, at regional/national level, the paper proposes the exploitation of a satellite interactive digital video broadcasting platform (DVB S2/RCS) as an overlay network that interconnects the regenerative DVB-T/IP platforms, as well as individual users, and services providers, to each other. Performance of the proposed hybrid terrestrial/satellite networking environment is validated through experimental tests that were conducted under real transmission/reception conditions (for the terrestrial segment) and via simulation experiments (for the satellite segment) at a prototype network infrastructure.

Three hundred years of House Sparrow (Passer domesticus) persecution in Germany

2007 ◽  
Vol 34 (2) ◽  
pp. 307-317 ◽  
Author(s):  
J. SEITZ
Keyword(s):  
Rural Areas ◽  
House Sparrow ◽  
Bird Species ◽  
Passer Domesticus ◽  
Second World War ◽  
Population Increase ◽  
World War ◽  
Large Numbers ◽  
Urban And Rural Areas ◽  
Second World

Modernization of agriculture, economic development and population increase after the end of the Thirty Years' War caused authorities in many parts of Germany to decree the eradication of so-called pest animals, including the House Sparrow. Farmers were given targets, and had to deliver the heads of sparrows in proportion to the size of their farms or pay fines. At the end of the eighteenth century German ornithologists argued against the eradication of the sparrows. During the mid-nineteenth century, C. L. Gloger, the pioneer of bird protection in Germany, emphasized the value of the House Sparrow in controlling insect plagues. Many decrees were abolished because either they had not been obeyed, or had resulted in people protecting sparrows so that they always had enough for their “deliveries”. Surprisingly, various ornithologists, including Ernst Hartert and the most famous German bird conservationist Freiherr Berlepsch, joined in the war against sparrows at the beginning of the twentieth century, because sparrows were regarded as competitors of more useful bird species. After the Second World War, sparrows were poisoned in large numbers. Persecution of sparrows ended in Germany in the 1970s. The long period of persecution had a significant but not long-lasting impact on House Sparrow populations, and therefore cannot be regarded as a factor in the recent decline of this species in urban and rural areas of western and central Europe.

Association of Age, Birth order and Family Income with Psycho-social problems in Rural Adolescents

JMS SKIMS ◽  
2017 ◽  
Vol 20 (2) ◽  
pp. 90-95
Author(s):  
Noorul Amin
Keyword(s):  
Birth Order ◽  
Rural Areas ◽  
Sampling Method ◽  
Family Income ◽  
Psychosocial Problems ◽  
The Other ◽  
Self Report ◽  
Rural Adolescents ◽  
Youth Self Report ◽  
Urban And Rural Areas

Background: The present age is the age of stress. Everybody is disturbed due to one or the other reason irrespective of their age. However, adolescents are more prone to psychological and sociological disturbances.Objectives:To assess the psychosocial problems in adolescents.Methods: The study was conducted in selected schools of urban and rural areas taking 100 participants each for boys and girls using convenient sampling method. The tool used was youth self report. The data collected was analyzed using appropriate statistical methods.Results: The study revealed that 48.5% adolescents were well adjusted; 47% were having mild psychosocial problems; 4% had moderate psychosocial problems and 0.5% had severe psychosocial problems.Conclusion: Adolescents irrespective of their living places had varying degrees of psychosocial problems. JMS 2017; 20 (2):90-95

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