Gaza City is the strip's biggest population centre and has about 400, 000 inhabitants.
Plovdiv has all the services and attractions of a major population centre, but it especially takes pride in its old town.
Dr Julian Kabala, consultant radiologist in Bristol said he felt it was important to have the service close to a major population centre.
Researchers from the Centre for Demographic Studies (Barcelona) and the Minnesota Population Centre have for the first time trawled through the censuses of more than 50 countries in every continent for people aged 25-39.
Professor Richard Bedford from Population Studies Centre at the University of Waikato highlighted the major changes taking place.
Dr Carol Tannahill is director of the Glasgow Centre for Population Health which is managing the study.
To test this theory, the Glasgow Centre for Population Health examined 20 regions in Europe that went through rapid deindustrialisation.
It appears many are moving into the Chao Phraya river basin north of Bangkok, the country's main farming region and its chief centre of population.
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Studies into the gel by the American Population Council's centre for Biological Research are being funded by the foundation set up by Microsoft founder Bill Gates.
Professor Georgina Mace, from the Centre for Population Biology at Imperial College London, welcomes the analysis but also questions whether we really need to know the names of all species.
According to research by Ann Berrington, at the ESRC Centre for Population Change at the University of Southampton, young people with degrees are much more likely to live with their parents.
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The study has been commissioned and undertaken by the Scottish Collaboration for Public Health Research and Policy (SCPHRP) at the University of Edinburgh and the University of Stirling's Centre for Population Health and Public Health Research.
Professor Elspeth Graham, of the ESRC Centre for Population Change, estimated the number of over 75s in the Scottish population would increase from the current number of 0.4m over 75s rising to around 0.7m by 2035.
The report classified "deep" rural areas as communities located at least 30 minutes' drive-time from a centre with a population of more than 10, 000.
Population science is once more centre-stage, pushed by climate change, which raises worries about the impact so many billions have on the environment of the earth, and food-price spikes, which imply doubts about whether it will be possible to feed them all.
And community support is important for clubs such as Bradford, whose home turf Valley Parade is located at the centre of the city's Asian population.
India's most often-cited advantage is its large English-speaking population, which has helped to fuel the call-centre boom.
Known today, rather prosaically, as Angkor Archaeological Park, the 150-square-mile site was the political and cultural centre of the Khmer empire and at its peak supported a population of one million.
The government paper sets out plans for more affordable housing, a new road to by-pass the centre of Ballasalla and the development of schools to meet a growing population.
Rescued orang-utans, of whom more than 300 are in her care centre in the park, could be freed without danger to the wild population.
This centre - dedicated to Lord Shiva - is especially popular with the tribal population in this lush district close to the Aravali mountain range and the picturesque Malwa Plateau - it has been described as "the Haridwar for tribals".
According to surveys by the Centre for the Study of Developing Societies, less than a fifth of the population is aware that India's markets opened up in the early 1990s.
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If these odds sound unpromising, head to Knysna Elephant Park, a pioneering elephant rehabilitation centre, 22km east of Knysna, where you can learn more about the plight of the diminished local population through various activities, including guided walks with the resident nellies.
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