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2. QR code - Wikipedia

   en.wikipedia.org/wiki/QR_Code

   A QR code is a type of two-dimensional barcode that can store data for various purposes, such as tracking, identification, and marketing. Learn how QR codes were invented, how they work, and how they are used in different contexts and standards.

3. Error detection and correction - Wikipedia

   en.wikipedia.org/wiki/Error_detection_and_correction

   Learn about the techniques and methods to ensure reliable delivery of digital data over unreliable communication channels. Find out the definitions, history ...

4. Criticism of Facebook - Wikipedia

   en.wikipedia.org/wiki/Criticism_of_Facebook

   Learn about the various issues and controversies that Facebook has faced since its founding in 2004, such as privacy, censorship, hate speech, and litigation. Find out how Facebook has been accused of influencing media, politics, and society in different ways.

5. Problematic social media use - Wikipedia

   en.wikipedia.org/wiki/Problematic_social_media_use

   This web page explains the symptoms, causes, and effects of excessive or addictive social media use on mental health and well-being. It does not provide a direct answer to the claim, but it mentions some possible reasons such as lower socioeconomic status, female sex, and passive consumption.

6. False positives and false negatives - Wikipedia

   en.wikipedia.org/wiki/False_positives_and_false...

   Learn the definitions and examples of false positive and false negative errors in binary classification, statistical testing, and medical diagnosis. Find out how to balance the risks of these errors and avoid common pitfalls in interpreting test results.

7. Effects of advertising on teen body image - Wikipedia

   en.wikipedia.org/wiki/Effects_of_advertising_on...

   This is present due to the media and the messages it commonly portrays; these messages are mostly targeted toward a younger age group which shows how media has influenced these age groups. According to an online article, it states that "The male body in the media has an impact on how males, especially developing males, perceive their bodies ...

8. List of HTTP status codes - Wikipedia

   en.wikipedia.org/wiki/List_of_HTTP_status_codes

   Learn about the meaning and usage of HTTP response status codes, which are issued by a server in response to a client's request. The codes are classified into five categories: 1xx, 2xx, 3xx, 4xx, and 5xx.

9. Scan (company) - Wikipedia

   en.wikipedia.org/wiki/Scan_(company)

   Scan is a mobile app development company that was founded in 2011 and sold to Snapchat for $54 million in 2014. Scan's products include QR codes, NFC, and machine-recognizable images, and its technology powers Snapchat's Snapcode feature.