In environmental science, experimental design is an extremely important part of the scientific method. When a scientist seeks to prove or disprove a hypothesis, he or she must carefully design the experiment so that it tests only one thing, or variable.
Borderline personality disorder (BPD), also known as emotionally unstable personality disorder, is a long term pattern of abnormal behavior characterized by unstable relationships with other people, unstable sense of self, and unstable emotions.
Quick Answer. Borderline personality disorder has a range of symptoms that include impulsive behavior with harmful consequences, mood swings and feelings of low self-esteem, according to WebMD. This mental illness can sometimes have a deep adverse impact on a person's relationships with others. Continue Reading