Neutrophils are the most common type of white blood cell, comprising about 50-70% of all white blood cells. They are phagocytic, meaning that they can ingest other cells, though they do not survive the act. Neutrophils are the first immune cells to arrive at a site of infection, through a process known as chemotaxis.
One of the basic theories stipulates that increasing interest rates raise consumers' and manufacturers' costs, which, in turn, reduces the amount of time and money people spend driving. Less people on the road translates to less demand for oil, which can cause oil prices to drop.
Business Janet Yellen Interest Rates Federal Reserve (Reuters) - The U.S. Federal Reserve will raise interest rates again in the next three months, according to two-thirds of economists polled by Reuters, although many say rates won't rise as quickly next year as policymakers have suggested.