Nausea and vomiting may occur separately or together. Common causes include: Chemotherapy. Gastroparesis (a condition in which the muscles of the stomach wall don't function properly, interfering with digestion) General anesthesia. Intestinal obstruction. Motion sickness: First aid. Morning sickness.
What is PRINCE2? PRINCE2Â® (Projects IN Controlled Environments) is a structured project management method based on experience drawn from thousands of projects and from the contributions of countless project sponsors, Project Managers, project teams, academics, trainers and consultants.
Definition: An experiment or clinical trial in which two groups are used for comparison purpose. More: In a controlled exposure study, one group of participants is exposed to a substance (e.g. a pollutant) while those in the  control  group are not.The results are then compared to determine the health effects of the substance being studied.In a placebo controlled study (often called simply controlled study), people in the treatment group are given the drug or treatment being tested while the control group receives a placebo or a different treatment.Source: GreenFacts.n a placebo controlled study (often called simply controlled study), people in the treatment group are given the drug or treatment being tested while the control group receives a placebo or a different treatment. Source: GreenFacts.