Examples in Cuiabá and Canoas show how vulnerable Brazilian urban rail projects are to changes in local politics, as well as the temptation of alternative modes which are seen as less complex, even if ...

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Magnets at different spots can become attracted to each other across the bowel wall. The problems include a bowel puncture or blockage. All children who are suspected of swallowing magnets need an ...

This treatment works with very few side effects. A downside is that the pumped air can enter the stomach. When air is pumped into the digestive tract, it is called aerophagia, which literally means ...