Medical detection dogs are capable of detecting diseases by sniffing a person directly or samples of urine or other specimens. Dogs can detect odour in one part per trillion, as their brain's olfactory cortex is (relative to total brain size) 40 times larger than humans. Dogs may have as many as 300 million odour receptors in their nose, while humans may have only 5 million. Each dog is trained specifically for the detection of single disease from the blood glucose level indicative to diabetes to cancer. To train a cancer dog requires 6 months. A Labrador Retriever called Daisy has detected 551 cancer patients with an accuracy of 93 percent and received the Blue Cross (for pets) Medal for her life-saving skills.
What can trained dogs detect by sniffing a person or a sample of their urine?
diseases

Available modes of transport are by road, sea and air. Of the 10,663 km (6,626 mi) of roads in the Republic of Cyprus in 1998, 6,249 km (3,883 mi) were paved, and 4,414 km (2,743 mi) were unpaved. In 1996 the Turkish-occupied area had a similar ratio of paved to unpaved, with approximately 1,370 km (850 mi) of paved road and 980 km (610 mi) unpaved.[citation needed] Cyprus is one of only four EU nations in which vehicles drive on the left-hand side of the road, a remnant of British colonisation (the others being Ireland, Malta and the United Kingdom). A series of motorways runs along the coast from Paphos east to Ayia Napa, with two motorways running inland to Nicosia, one from Limassol and one from Larnaca.
How many miles of roads are unpaved on Cyprus?
4,414 km (2,743 mi)

Studio producers Richard D. Zanuck and David Brown offered Spielberg the director's chair for Jaws, a thriller-horror film based on the Peter Benchley novel about an enormous killer shark. Spielberg has often referred to the gruelling shoot as his professional crucible. Despite the film's ultimate, enormous success, it was nearly shut down due to delays and budget over-runs. But Spielberg persevered and finished the film. It was an enormous hit, winning three Academy Awards (for editing, original score and sound) and grossing more than $470 million worldwide at the box office. It also set the domestic record for box office gross, leading to what the press described as "Jawsmania.":248 Jaws made Spielberg a household name and one of America's youngest multi-millionaires, allowing him a great deal of autonomy for his future projects.:250 It was nominated for Best Picture and featured Spielberg's first of three collaborations with actor Richard Dreyfuss.
How many times did Spielberg work with Richard Dreyfus?
three