But one fear, that voters in densely-populated opposition strongholds would not have time to cast ballots, seemed unfounded.
The initial 4G roll-out includes the oil-producing region of Cabinda, as well as 15 densely-populated cities and towns including Luanda.
The strict rules help to reassure pilots flying over the UK's densely-populated capital that everything possible is being done to minimise risk.
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The same boom has brought drilling rigs, and the fears of air and water pollution that accompany them, into densely-populated urban areas.
Dakar's mayor, Khalifa Sall, told RFM radio that the ramshackle development of densely-populated residential areas in the city made it impossible for the emergency services to operate effectively.
Despite living in Hong Kong, among the most densely-populated places on the planet, the organized (and not-so organized) chaos of Mumbai makes Hong Kong seem like a ghost town.
The home of Ahmed Jabari, the head of Hamas's military wing, was destroyed in an air strike at Shujaia, a suburb of densely-populated Gaza City, according to the Israeli military.
The venture capital company BMW i Ventures was founded in 2011 under the BMW i sub-brand, to provide financial support for companies developing mobility solutions for problems in densely-populated cities worldwide.
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Planning is about balancing the need for a decent environment with business's need to grow, and the south-east of England is one of the richest and most densely-populated areas of the world.
It is not known how long Broadway's lights will stay out as the densely-populated city awaits the arrival of the storm, with productions of Evita, Mary Poppins and Chicago affected, along with several off-Broadway plays.
Innovations like hydraulic fracturing, known as "fracking, " have made it easier to extract oil and especially natural gas from energy-rich geological formations such as the Niobrara shale, which stretches from Wyoming to beneath the densely-populated Front Range of Colorado's Rocky Mountains.
Removal of the US Air Expeditionary Wing from Prince Sultan Air Base, for example, should help improve our relations with the Saudis, and relocating US forces south and out of the densely-populated Seoul area in Korea will help remedy various problems with the Korean public while serving other important military purposes as well.
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Two more people died in further unrest in Kayole - a densely populated neighbourhood of his constituency in the capital - on Monday.
Densely populated, low-lying areas, such as large river deltas and small islands, are at the greatest risk from flooding.
These valleys were densely populated in pre-European times and you will see low, stone temples and groups of long-abandoned traditional house foundations.
Meanwhile, three families of rightist-religious settlers moved into homes controversially bought from Palestinians at Ras al-Amud, a densely populated quarter on the Mount of Olives.
Available now for large-scale commercial deployment in China Mobile's first trial TD-LTE network, which spans 13 cities in China, lightRadio Metro Radio will bring high-performance 4G services to residents in densely populated areas of Shanghai, Nanjing and Qingdao, three of the fastest growing cities in China and indeed the world.
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Street gangs hold sway in many of the poorest, most densely populated parts of the capital city, Port-au-Prince.
With about 700, 000 inhabitants, the 24-sq-mile area is one of the most densely populated parts of an already packed city.
Exploiting shale also requires drilling lots of wells something that might prove harder in densely populated Europe than in America's wide-open spaces.
For hour upon hour I tramped in splendid isolation - and this in one of the most densely populated regions on Earth.
Now, part of it is we're a very big country, we're not as densely populated as some countries in Europe and Asia -- and let's face it, we just love our cars.
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And in Uzbekistan, the historic centerpiece of Central Asia and its most densely populated market, Coke teamed up with a son-in-law of strongman President Islam Karimov--and came to regret it.
British cities, and certainly London, are densely populated, meaning that they have a lot of mixed-use properties, such as offices and retail in one building.
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Apart from collecting prenatal pottery pieces (there seems to be no restriction against it), locals and tourists can enjoy a refreshing swim in the rolling, blue waves of the Black Sea -- so called for the colour of its deep waters densely populated with algae.
These blocks, standing cheek-by-jowl on every street, make this neighbourhood the most densely populated area in Australia.
Each is among the least densely populated in the country, but with some powerful and long-tenured representation in Congress.
Both years saw major storms (F4 or F5 on the F0-F5 Enhanced Fujita scale) plow very long paths through densely populated territory.
If nobody has applied in the present process, there may be opportunities again in the future - either in the two large cities, or in other densely populated areas including Inverclyde and the areas around Aberdeen and Dundee.
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North Korea is believed to have hundreds of short-range missiles, many of which could target Seoul and other densely populated areas in South Korea.
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