However, while viruses are effective, they can introduce problems like toxicity, immune and inflammatory responses, and gene control and targeting issues.

However as a result of intense pressure from the U. S. authorities, widespread efforts are currently being made to introduce systematic anti-money laundering initiatives on a global scale, to better curb the activities of the financiers of terrorism and those engaged in laundering the profits of drug smuggling.

However, bulk freight still continues to be transported by coastal shipping and by rail transport, and there are attempts to ( re ) introduce public transport as a major transport mode in the larger population centres.

However, rebuttal is one of the few vehicles whereby a party may introduce surprise evidence or witnesses.

However, when it came time to introduce the Patriots ' starters, Pat Summerall, making the public address announcement, revealed that the Patriots chose " to be introduced as a team.

However, there were elements within the RAF and the government that sought to adopt the new nuclear weaponry and advances in aviation technology to introduce more potent and effective means of conducting warfare.

However, cassette Walkman innovation would come to an end as during its 25th Anniversary, Sony chose to not introduce another limited run cassette model but instead, brought out the hard disk based NW-HD1 in 2004 to officially augur the death of the compact cassette.

However, digital filters do introduce a higher fundamental latency to the system.

However, very small variations in the calibration of the electric current in the electromagnet introduce minuscule frequency variations among different caesium oscillators.

However they did introduce diesel engines in all their cars.

However, other changes such as Transgenesis introduce DNA into an organism that is not available in the species ' gene pool.

However, the Liberals responded by accusing the Alliance of having a " hidden agenda " ( introduce two-tier health care, threatening gay rights and abortion rights ), which the party denied.

However, once the theory is formulated, it is convenient to introduce a notion of wave function also for subsystems of the universe.

However, Glass argued that the better approach preserves variance in the study sample, casting as wide a net as possible, and that methodological selection criteria introduce unwanted subjectivity, defeating the purpose of the approach.

However, paragraph 13 ( d ) of the Korean Armistice Agreement mandated that both sides should not introduce new types of weapons into Korea, so preventing the introduction of nuclear weapons and missiles.

However, she waited too long before entering America's music scene and though great names of the American music industry wanted to introduce her to the United States, she refused commenting that " I took too long to start here ".

However Wagner did introduce one striking new image, which was to be taken up after him by many later antisemitic authors:

However, if we introduce a formal system where modus ponens is simply an axiom, then we are to abide by it simply, because it is so.

However the assassination of the Vice-President of the Executive Council, Kevin O ' Higgins, led the Cumann na nGaedheal government under W. T. Cosgrave to introduce a law requiring all Dáil candidates to promise that they would take the Oath.

However, it uses the familiar and motivational video game format to introduce the strange and new world of cells and molecules.

However, when Albert attempted to introduce reduction of their large estates, they quickly turned against him.

However, to his misfortune, the Academy decided to introduce a new system of calculating grades and as a result Denikin was not offered a staff appointment after the final exams.

However Channel kept the clock well into the 1990s, using it to introduce news.

However, it was only when he attempted to introduce reduction of the large estates of the Swedish nobility that he lost his support in Stockholm.

However, isolated examples of copper-zinc alloys are known in China from as early as the 5th Millennium BC.

" However some earlier high zinc, low iron brasses such as the 1530 Wightman brass memorial plaque from England may have been made by alloying copper with zinc and include traces of cadmium similar those found in some zinc ingots from China.

However, Brazil is the only country besides China and Russia that has land borders with 10 or more nations.

However, according to George Sussman, the first obvious medical description of plague in China dates to 1644.

However, due to the geographic proximity of the northern part of China to minority-dominated regions that were not subjected to such restrictions, beef could be easily purchased and transported to northern China.

However, lamb and goat are rarely eaten, unlike in the cuisines of northern or western China.

However, it isn't so popular in South China ( including the more embracing Shanghai ).

However, it was one of the only military products that China imported from foreigners.

However, Chiang presided over purges, political authoritarianism, and graft during his tenure in mainland China, and ruled throughout a period of imposed martial law.

However, more recent studies which use the records of civil magistrates suggest that China did in fact have a very well developed system of civil law, in which provisions of the criminal code were interpreted to allow civil causes of action.

However, Vietnamese rulers never accepted the vassalage relationship with China and always refused to come to Chinese courts to pay homage to Chinese rulers ( a sign of vassalage acceptance ).

However, the concept pre-dates the naming of these establishments, as evidence suggests commercial food preparation may have existed during the age of the city of Pompeii, and urban sales of prepared foods may have existed in China during the Song Dynasty.

However in Ming China, for example, there is considerable evidence for rapidly changing fashions in Chinese clothing.

However, due to security and technology-independence policy from European Commission, China was, in effect, dis-invited from Galileo and without a return of its monetary investment, a decision that was reinforced by China ’ s move to build its own global system, called Beidou / Compass.

However, Hong Kong registered vehicles may apply for secondary mainland Chinese registration plates, and these can be driven across the border to mainland China ; likewise, left-hand drive cars seen in Hong Kong are usually primarily registered in mainland China and carry supplementary Hong Kong registration plates.

However, Western Medicine was introduced to China in the 19th Century, mainly by medical missionaries sent from various Christian mission organizations, such as the London Missionary Society ( Britain ), the Methodist Church ( Britain ) and the Presbyterian Church ( USA ).

However, price of ivory in China has skyrocketed.

However, the ROC does not actively pursue these claims in practice ; the remaining claims that the ROC are actively seeking are the Diaoyu Islands, whose sovereignty is also asserted by Japan and the PRC ; and the Spratly Islands in South China Sea, with multiple claimants.

However, in the case of Hong Kong, irredentism was incidental: The New Territories part of the British colony were only on a lease expiring in 1997 anyway and, with their surrender, it was thought the Crown territory of Hong Kong itself would be nonviable as an entity independent of mainland China.

However unlike China, there was no real systemic continuity from the western Roman Empire to its German successor which famously was " not holy, not Roman, and not an empire ", and numerous small states existed in variously autonomous confederation.

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.