2. As the precursor to nitric oxide (NO), arginine can produce more muscle pumps during an intense workout. It works by widening your blood vessels during workouts, so that more oxygen and nutrients are hitting your muscles. Besides giving you more muscle pumps and growth, arginine is also a quality fat burner.
Communication is the quality of being able to get on well with others in a productive way. Good communication skills are important in any field of human activity but perhaps even more so in refereeing. Referees need to try to establish good channels of communication with players and coaches alike.
The level of excellence or competence that is expected of a professional. The professionalism of the employee was unquestionable; for years he had worked diligently and with discretion, earning the accolades of his superiors and peers. The professionalism of the office manager in the doctor's office was a prime example of how all employees should treat a difficult or frustrating situation.