Deezer 21 December, Deezer announced a new service level offering two hours of free, ad-supported music streaming a month, available to users worldwide, the company's first free music streaming service outside France. CEO Dauchez said that Deezer was also looking for a partner to introduce service in the United States, who was "able to provide us with a significant volume of subscribers" to help offset what he called the "unbelievably high" costs of entering the US market. As of December 2012, Deezer had about three million users paying for subscriptions, out of a monthly active user base of about seven million,
Tidal volume Tidal volume Tidal volume (symbol V or TV) is the lung volume representing the normal volume of air displaced between normal inhalation and exhalation when extra effort is not applied. In a healthy, young human adult, tidal volume is approximately 500 mL per inspiration or 7 mL/kg of body mass. Tidal volume plays a significant role during mechanical ventilation to ensure adequate ventilation without causing trauma to the lungs. Tidal volume is measured in milliliters and ventilation volumes are estimated based on a patient's ideal body mass. Measurement of tidal volume can be affected (usually overestimated) by leaks in the