sson B. Cloning of a human parvovirus by molecular screening of respiratory tract samples.tinct patterns of evolution between respiratory syncytial virus subgroups A and B from New Zealand isolates collected over thirty-seven years. 1-year experience with human metapneu-movirus in children aged <5 years. subtyping of infl uenza viruses and respiratory syncytial viruses by multiplex RT– PCR. Det...

applying a balanced diet approach to define poverty line, the extent of poverty of the families in the rural vs. urban areas of the karkheh river basin, iran is investigated in the present study. the main source of data is from the household income and expenditure survey figures for years 1983, 1993 and 2004, as provided by the statistical centre of iran. first, a review of different methods of...

a r t i c l e i n f o JEL classification: D83 J64 R14 R23 Keywords: City structure On-the-job search Unemployment Efficiency Relocation path Career path This study develops an on-the-job search model involving spatial structure. In this model, workers are either employed and commute frequently to a central business district (CBD) or unemployed and commute less frequently to the CBD in search of...

In this paper, the use of waveform data in urban areas is studied. Full waveform is generally used in non-urban areas, where it can provide better vertical structure description of vegetation compared to discrete return systems. However, waveform could be potentially useful for classification in urban areas, where classification methods can be extended to include parameters derived from wavefor...

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An approach for automatic road extraction from digital aerial imagery is presented. The extraction is based on a semantic model for roads. The images are divided into different so-called “global contexts”: rural, forest, and urban. Different parts of the road model and different strategies are used in the different global contexts. In rural areas, a multi-scale approach is employed to find init...

The population of Latin America is now largely urban. By 1990, 72 percent of the people of the region were living in cities (Figure 1). By 2020, the urban population could reach 83 percent. With increasing urbanization, the region faces problems of poverty, nutrition, and health that are somewhat different from those when the population was more rural. Thirty-five percent of the people who live...

Article history:Received 23 July 2013Received in revised form 30 October 2013Accepted 30 October 2013Available online xxxx