However, the Vikings lacked both the equipment necessary to undertake a siege against the burh and a developed doctrine of siegecraft, having tailored their methods of fighting to rapid strikes and unimpeded retreats to well defended fortifications.

However, slow phosphor has the negative side-effect of causing image smearing and blurring when there is a large amount of rapid on-screen motion occurring.

However, rapid technological advances and worldwide participation accelerated the completion date to 2003 ( making it a 13 year project ).

However, given the rapid progress in the industry they are working on a more in depth study to be concluded in May 2012.

However, the classification as a metro or rapid rail can be difficult as both may typically cover a metropolitan area exclusively, run on separate tracks in the centre, and often feature purpose-built rolling stock.

However, their effectiveness in humans has not been established, and is limited by poor absorption into cells and rapid excretion.

However, the rapid growth of the world's population and its increased concentration often in hazardous environments has escalated both the frequency and severity of natural disasters.

However, the rapid capture of so many neutrons would provide needed direct experimental confirmation

However, German unification in 1870 stimulated consolidation, nationalisation into state-owned companies, and further rapid growth.

However, this treatment is not optimal in other forms such as reactive hypoglycemia, where rapid carbohydrate ingestion may lead to a further hypoglycemic episode.

However, these same features made Windows NT perfect for the LAN server market ( which in 1993 was experiencing a rapid boom, as office networking was becoming common ).

However, German unification in 1870 stimulated consolidation, nationalisation into state-owned companies, and further rapid growth.

However, the rapid post-war economic development of the East Asian Tigers, India, the People's Republic of China, along with the collapse of the Soviet Union, have loosened European and North American influence in Asia, generating speculation today about the possible re-emergence of India and China as superpowers.

However, the rapid changes saw millions of people sent to correctional labour camps, and deported and exiled to remote areas of the Soviet Union.

However, during the bebop era, the rapid tempo and complicated chord progressions made it increasingly harder to play " by ear.

However, the rush to complete this rapid expansion scheme resulted in the deaths of 997 personnel and another 700 wounded.

However, spies and others whose secrets must be guarded may have an induced allergy to fast-penta and rare few people are naturally allergic ; in both cases using the drug on allergic person results in rapid death from anaphylactic shock.

However, prompted by grain shortage in 1928, Stalin reversed himself and proposed a program of rapid industrialization and forced collectivization because he believed that the NEP was not working fast enough.

However, the rapid development ( 8 % of increase of passengers served at Polish airports in 2008 compared to 2007 ) of the unsaturated market and the existence of vast areas of land, not covered by airports within 100 kilometers of journey, allow to assume that many new airports could be necessary to properly serve this land pupulated by appox.

However, the punctuational equilibrium model may still be inferred from both the observation of stasis and examples of rapid and episodic speciation events documented in the fossil record.

However, with the rapid growth of technology jobs in the San Francisco Metropolitan area, the traditional boundaries of Silicon Valley have expanded North to include the rest of San Mateo County, San Francisco County as well as parts of Marin County.

However, the city boasts an excellent public transit system using a fleet of modern buses, and is beginning to plan for a rapid transit link to the western communities.

However, many wildebeest populations are experiencing rapid declines.

However, his successor, George Grey, promoted rapid cultural assimilation and reduction of the land ownership, influence and rights of the Māori.

However, although food imports fell significantly between 1932 and 1937, Germany's rapid rearmament policy after 1935 proved contradictory to the Nazi Party autarkic ambitions and imports of raw materials rose by 10 % over the same period.

However, it cannot be presumed, informal though the structure of the population seems, that there are not well-defined roles within the system.

However, even if the latent demand for demythologization is not nearly as widespread as we are claiming, at least among the cultured elements of the population there tends to be an almost complete indifference to the church and its traditional message of sin and grace.

However, it is the editor who has " the power to impose the dominant definition of the writer and therefore to delimit the population of those entitled to take part in the struggle to define the writer ".

However, this tenfold increase in population over the course of a few generations could not be achieved by increased birthrate alone ; likely it also involved migrations of peoples from surrounding areas.

However, a percentage of the indigenous Assyrian population ( known as Ashuriyun by the Arabs ) resisted this process, Assyrian Aramaic language and Church of the East Christianity were still dominant in the north, as late as the 11th and 12th centuries AD.

However, the total population of the arctic fox must be in the order of several hundred thousand animals.

However, the presence of a vigorous population of Celtic lineage, principally of Irish origin, has supported the creation of other celebrations of beer, often for marketing purposes, such as Saint Patrick's Day ( Día de San Patricio ), patron of Ireland, which is celebrated with abundant libations.

However 1. 4 billion people still live without clean drinking water and 2. 6 billion of the world ’ s population lack access to proper sanitation.

However, since 1960 the population has fallen by 8 %.

However, the city of Aveiro together with neighbouring Ílhavo, make one conurbation which has a population of 119, 258 inhabitants, making it one of the most important by population density in the Centro Region.

However, the Californian, North African ( Atlas bear ), and Mexican subspecies were hunted to extinction in the 1870s, 1922, and more recently, respectively, and the not officially recognized Marsican brown bear in central Italy is believed to have a population of just 30 to 40 bears.

However, poverty statistics that are based on surveys of the entire population can be extremely misleading in communities dominated by students, such as Boone.

However, as the term became politicized, its use fell out of favor as a means of referring to the entire population.

However, classical liberals rejected Adam Smith's belief that the " invisible hand " would lead to general benefits and embraced Thomas Malthus ' view that population expansion would prevent any general benefit and David Ricardo's view of the inevitability of class conflict.

However, this meta-analysis included two large studies of smokers, so it is not clear that the results apply to the general population.

However, during 2006-8, several reviews of case reports and pilot studies have failed to confirm this effect, collectively indicating no statistically significant interaction between daily consumption of 250 mL cranberry juice and warfarin in the general population.

However, the large population of weak states after 1945 allowed intervention by former colonial powers, regional powers and neighboring states who themselves often had scarce resources.

However, the Christian population of Alexandria knew that Ammonius had been killed for his assault and not for his faith, and Cyril was obliged to remain silent about the events.

However only a small minority actually had a voice ; Parliament was elected by only a few percent of the population, ( less than 3 % as late as 1780 ), and the power to call parliament was at the pleasure of the monarch ( usually when he or she needed funds ).

However Robert Spitzer later criticized his own work on it in an interview with Adam Curtis saying it led to the medicalization of 20-30 percent of the population who may not have had any serious mental problems.

However, the city prospered again soon after as a result of the wool and linen trade with England, reaching a population of over 50, 000 in 1700.

However, the proportion of the population living in rural areas has continued to decrease as people move to the cities in search of employment and a higher standard of living.

However, in the most recent years the decline has slowed down considerably and according to preliminary figures the population stabilized in 2010.