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This paper's aim is to study North African refugees admitted to Sicilian hospitals from Lampedusa by helicopter emergency service 118, from 1 January to 22 September 2011 when due to a violent uprising in the Refugee Centre, Lampedusa is no longer accepting refugees by order of the Ministry of Interior.

Those migrants who were in need of hospitalization were transferred to the Sicilian hospitals exclusively by the emergency helicopter service 118. All 203 patients were classified according to the admission diagnosis reported on medical records of 118 and data were aggregated according to: disease, sex and department in which hospitalization was required.

Women were admitted to hospital almost exclusively for obstetrics and gynecological problems, while men for trauma, severe dehydration, attempted suicide, infectious diseases (TB, airways distress, and scabies), seizures and metabolic diseases. Hospitalization rate was 20 times lower in African migrants than Italian population compared per age and sex, confirming “the healthy immigrant effect”.

The paper shows that identification of health problems requires a careful monitoring that has implications for diseases dissemination (i.e. TB, HIV) both for ill patients who arrive, either for prophylaxis of healthy migrants, pursuing a valid vaccination policy. Maximum use must be made of the moment of the arrival of migrants to get and disseminate health information.

Inductances of complex coils, in the presence of linear materials only, can be computed by discretizing coils into simpler elements, whose magnetic behavior is analytically expressible, and suitably combining elementary contributions. Reliable results require high numbers of elements. In such cases, advantages can be taken from Graphic Processor Unit (GPU) capabilities of dealing efficiently with high numbers of repeated simple computational tasks. The purpose of this paper is to set up a fast and prompt numerical procedure to cope with the above described task.

The coils are first decomposed into current segments, taking into account accuracy, relative position and shape of coils to determine the number of segments. An analytical formula is then used to compute elementary contributions using GPUs to speed up the process, and finally superposition is used to recover the result.

The main advantages of the proposed approach are first demonstrated using simple examples, with analytical solutions, to validate the method accuracy and promptness, then more complex cases are taken to demonstrate its generality.

The method is intrinsically limited by the linearity assumption, excluding the presence of magnetic materials. The adopted formulas require in addition that coils must lie in free space.

The proposed method can help in the design of complex coils or coils systems, where the performance depends on total magnetic energy or magnetic forces among coils.

The paper presents an original implementation in GPU-based computational environment of a procedure to compute inductances, based on the superposition of a high number of current segments. The procedure includes an original method to self-adaptively define number and position of current segments used in the coils discretization.