A hiatal hernia does not cause many symptoms by itself, but when a sliding hernia occurs, the abnormal location of the gastroesophageal (GE) junction above the diaphragm affects its function and stomach contents can reflux into the esophagus.
-You need to work on sentence structuring. For example, when you wrote, The immigration, as a decision maked by a person is an act that occurs, because of some factors especially in the under developed countries and the most importants causes or reasons are mainly social reasons, politic reasons and economic reasons..
Whereas push factors drive migrants out of their countries of origin, pull factors are responsible for dictating where these travelers end up.The positive aspects of some countries serve to attract more immigrants than others. Below are three examples of pull factors that draw migrants to receiving countries.Higher standards of living/Higher wages: Economic incentives provide both the biggest push and pull factors for potential migrants.he positive aspects of some countries serve to attract more immigrants than others. Below are three examples of pull factors that draw migrants to receiving countries. Higher standards of living/Higher wages: Economic incentives provide both the biggest push and pull factors for potential migrants.