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Moderna, one of two developers of federally authorized coronavirus vaccines , is asking U. If the change is approved — which could happen in weeks — it could ultimately add tens of millions of more doses to vaccine supplies. At the same time, the White House announced on Tuesday that it was enlisting more retail pharmacies as a channel to distribute vaccines. Jeffrey D. The White House announcements were clearly intended to show that Mr. Biden was making rapid strides on the vaccine front amid huge frustration in the country over tight supplies and a chaotic, cobbled-together system for administrating the available shots.

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Published Feb. Snow and wintry mix possible late this week A cold front later this week could bring a chance of snow and wintry mix to areas in and around Texarkana. Southwest Oklahoma should feel it first. Phillips named outstanding law enforcement officer of the year Arkansas Department of Correction's employee Capt. Bowie County has openings for 40 jail jobs Sheriff's office takes over Bi-State lockup at 7 p. Texas Rep.

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Augmented reality AR is an interactive experience of a real-world environment where the objects that reside in the real world are enhanced by computer-generated perceptual information, sometimes across multiple sensory modalitiesincluding visualauditoryhapticsomatosensory and olfactory. The primary value of augmented reality is the manner in which components of the digital world blend into a person's perception of the The Simple View Of Reading And Its world, not as a simple display of data, but through the integration of immersive Viwe, which are perceived as natural parts of an environment.

The earliest functional AR systems that provided immersive mixed reality experiences for users were invented in the early s, starting with Itd Virtual Fixtures system developed at the U. Air Force's Armstrong Laboratory in Subsequently, augmented reality applications have spanned commercial industries such as education, communications, medicine, and entertainment. In education, content may be accessed by scanning or viewing an image with a mobile device or by using markerless AR techniques. Augmented reality is used to enhance natural environments or situations and offer perceptually enriched experiences.

With the help of advanced AR technologies e. Information about the environment and its objects is overlaid on the real world.

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This information can be virtual [11] [12] [13] [14] or real, e. Augmentation techniques are typically performed in real time and in semantic contexts with environmental elements. Immersive perceptual information is sometimes combined with supplemental information like scores over a live video feed of a sporting event. This combines the benefits of both augmented reality technology and heads up display technology HUD. In virtual reality VRthe users' perception of reality is completely based on virtual information. In augmented reality AR the user is provided with additional computer generated information that enhances their perception of reality.

Another example is through the use of utility applications.

Some AR applications, such as Augmentenable users to apply digital objects into real environments, allowing businesses to use augmented reality devices as a way to preview their products in the real world. Augmented reality AR differs from virtual reality VR in the sense that in AR part of the surrounding environment is actually 'real' and just adding layers of virtual objects to the real environment. On the other hand, in VR the surrounding environment is completely virtual. A demonstration of how AR layers objects onto the real world can be seen with augmented reality games.

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WallaMe is an augmented reality game application that allows users to hide messages in real environments, utilizing geolocation technology The Simple View Of Reading And Its order to enable users to hide messages wherever they may wish in the world. Hardware components for augmented reality are: a processor, display, sensors and input devices. Modern mobile computing devices like smartphones and tablet computers contain these elements, which often include a camera and microelectromechanical systems MEMS sensors such as an accelerometerGPSand solid state compassmaking them suitable AR platforms. Various technologies are used in augmented reality rendering, including optical projection systemsmonitorshandheld devicesand display systems, which are worn on the human body. A head-mounted display HMD is a display device worn on the forehead, such as a harness or helmet-mounted.

HMDs place images of both the physical world and virtual objects over the user's field of view. Modern HMDs often employ sensors for six degrees of freedom monitoring that allow the system to align virtual information to the physical world and adjust accordingly with the user's head movements.]