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Time-based one-time password (TOTP) is a computer algorithm that generates a one-time password (OTP) using the current time as a source of uniqueness. As an extension of the HMAC-based one-time password algorithm (HOTP), it has been adopted as Internet Engineering Task Force (IETF) standard RFC 6238 .
On March 3, 2021, Google released Flutter 2 during an online Flutter Engage event. [7] [33] It added a Canvas-based renderer for web in addition to the HTML-based renderer and early-access desktop application support for Windows, macOS, and Linux. [33] [7] It also shipped with Dart 2.0 which included support for null-safety.
Prior to Flutter 2.0, developers could only target Android, iOS and the web. Flutter 2.0 released support for macOS, Linux, and Windows as a beta feature. [67] Flutter 2.10 released with production support for Windows [68] and Flutter 3 released production support for all desktop platforms. [69] It provides a framework, widgets, and tools.
Atrial flutter was first identified as an independent medical condition in 1920 by the British physician Sir Thomas Lewis (1881–1945) and colleagues. [5] AFL is the second most common pathologic supraventricular tachycardia but occurs at a rate less than one-tenth of the most common supraventricular tachycardia (atrial fibrillation).
The red car's driver picks a tree to judge a two-second safety buffer. The two-second rule is a rule of thumb by which a driver may maintain a safe trailing distance at any speed. [1] [2] The rule is that a driver should ideally stay at least two seconds behind any vehicle that is directly in front of his or her vehicle. It is intended for ...
Flutter-tonguing is a wind instrument tonguing technique in which performers flutter their tongue to make a characteristic "FrrrrrFrrrrr" sound. The effect varies according to the instrument and at what volume it is played, ranging from cooing sounds on a recorder to an effect similar to the growls used by jazz musicians.
[2] Usage of the flutter valve presents potential problems such as clogging of the chest tube, which might provoke the recurrence of the pneumothorax or the subcutaneous emphysema, which can lead to empyema. Another potential problem leaks of fluid, which are resolved with a small chest-drain; or with a sputum-trap attached to the valve, to ...