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.
Borderline Personality Disorder. Borderline personality disorder is a longstanding pattern of swings -- in moods, relationships, self-image, and behavior. People with borderline personality disorder have very strong emotions and often try to hurt themselves, and may have problems with relationships with people.n this article. Borderline personality and bipolar: These two disorders are often confused. They both have symptoms of impulsiveness and mood swings. But they are different disorders and have different treatments.