Small for gestational age (SGA) babies are those whose birth weight lies below the 10th percentile for that gestational age. Low birth weight (LBW), is sometimes used to define a baby that weighs less than 5 lb 8 oz (2500 g) regardless of gestational age.
Historical Examples. 1  The present writer has collected several hundred local wind namesâand is constantly adding to the list. 2  Because local wind systems dominate the trade winds, these deserts are less stable than other deserts.
Ground surfaces interfere with this air-flow, resulting in different air pressures. Wind is the movement of air between pressure systems as they try to balance out. It is estimated that 1-2% of the sunâs energy on earth is converted naturally into wind energy. A research study conducted at Harvard University concluded that a global network of wind power stations could meet the power consumption of the entire world population.