Joe has been diagnosed with major depressive disorder. He interprets negative stressful events using a pessimistic explanatory style. This explanatory style creates a hopeless, depressed state, which then hampers the way he thinks and acts, causing more negative stressful events. Joe's depression is thus, at least in part, due to: state-dependent memory.
rumination.
a biochemical imbalance.
indicators of depression.

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

registered nurse (rn): the rn is responsible for carrying out both the medical plan of care prescribed by the physician as well as the nursing care plan developed by the nursing staff. the rn assesses each resident and modifies the nursing care as needed to meet the patient's needs.