Differences in mean diet scores by nativity and length of residence were examined by including one exposure variable with four categories: Mexico-born Mexican Americans residing in the United States for <15 years, Mexico-born Mexican Americans residing in the United States for â¥15 years, US-born Mexican Americans, and US-born non-Hispanic whites.
A substation is a part of an electrical generation, transmission, and distribution system.Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. substation is a part of an electrical generation, transmission, and distribution system.
If a substation breaks, no matter what time of day or night, youâll be called to make repairs. You throw switches in an attempt to isolate the problem, and then you test the current. You also replace wires, circuits, and breakers as needed. After making repairs, you test the system to check if itâs functional.