Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.

Question: Does mechanical ventilation with lower tidal volumes influence the prescription of opioids or sedatives?
Answer: Concerns regarding sedation requirements with use of lower V(T) are unfounded and should not preclude its use in patients with ALI/ARDS.
no

Question: Does combined isometric and vibration training enhance strength beyond that of isometric training alone?
Answer: The present study provides evidence to suggest that there are no greater gains to be incurred by the addition of a vibratory stimulus to traditional strength training.
no

Question: Is cagA-positive Helicobacter pylori infection associated with decreased risk of Barrett 's esophagus in a population with high H. pylori infection rate?
Answer: Neither H. pylori infection nor H. pylori infection by CagA+ strains reduce the risk of BE in a population with high prevalence of H. pylori infection.
no