Given, though, that the methodology of each ranking is subjective in its choice of criteria, and that the difference between a school ranked 25th or 35th is probably not that great, the results should never be the most influential factor when identifying the right school for you.

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Duffy also believes the struggle to replace influential players has been the main factor in Hearts' struggles so far this season.

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Professor Keenan says there is another complicating factor, asserting that the Algerian security service is highly influential among leaders such as Ag Ghaly, with whom it has long had links, as well as with key regional leaders of al Qaeda (such as Abdelhamid abou Zaid).

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