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The use of special functions, and in particular Airy functions, is rather common in physics. The reason may be found in the need, and even in the necessity, to express a physical phenomenon in terms of an effective and comprehensive analytical form for the whole scientific community. However, for the past twenty years, many physical problems have been resolved by computers. This trend is now becoming the norm as the importance of computers continues to grow. As a last resort, the special functions employed in physics will have to be calculated numerically, even if the analytic formulation of...

Urban centers are bastions of inequalities, where poverty, marginalization, segregation and health insecurity are magnified. Minorities and the poor often residing in neighbourhoods characterized by degraded infrastructures, food and job insecurity, limited access to transport and health care, and other inadequate public services are inherently vulnerable, especially at risk in times of shock or change as they lack the option to avoid, mitigate and adapt to threats.

Offering both theoretical and practical approaches, this book proposes critical perspectives and an...