It looks like this is a web page, not a feed. I looked for a feed associated with this page, but couldn't find one. Please enter the address of your feed to validate.

Source: https://blog-272097777162.mit-edu.top/post/2843190576

  1. <!doctype html>
  2. <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en" prefix="og: http://ogp.me/ns#">
  3.  
  4.  <head>
  5.    <meta charset="utf-8">
  6.    <meta name="applicable-device" content="pc,mobile">
  7.    <meta name="viewport" content="width=device-width, initial-scale=1">
  8.    <title>The Influence of Gamified Feedback Loops on Behavioral Engagement #140430910825 (2025-02-01)</title>
  9.    <link rel="canonical" href="https://blog-272097777162.mit-edu.top/post/2843190576">
  10.    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Poppins:wght@400;700&display=swap">
  11.    <link rel="stylesheet" href="https://x.mit-edu.top/static/css/style.css">
  12.    <script src="https://x.mit-edu.top/static/js/lazysizes.min.js" async></script>
  13.    <link rel="shortcut icon" href="/favicon.ico">
  14.    <!-- Open Graph Metadata -->
  15.    <meta property="og:type" content="article" />
  16.    <meta property="og:title" content="The Influence of Gamified Feedback Loops on Behavioral Engagement" />
  17.    <meta property="og:description" content="The Influence of Gamified Feedback Loops on Behavioral Engagement #140430910825 (2025-02-01)" />
  18.    <meta property="og:url" content="https://blog-272097777162.mit-edu.top/post/2843190576" />
  19.    <meta property="og:site_name" content="mit-edu.top" />
  20.    <meta property="og:image" content="https://x.mit-edu.top/static/images/post/12.jpg" />
  21.    <meta property="og:article:published_time" content="2025-02-01T13:49:13Z" />
  22.    <meta property="og:article:author" content="Dr. Justin Brooks" />
  23.    <meta property="og:article:section" content="mit-edu.top" />
  24.    <meta property="og:article:tag" content="Games, Mobile Games, Video Games" />
  25.    <!-- Schema.org -->
  26.    <script type="application/ld+json">{
  27.            "@context": "https://schema.org",
  28.            "@type": "ScholarlyArticle",
  29.            "headline": "The Influence of Gamified Feedback Loops on Behavioral Engagement #140430910825 (2025-02-01)",
  30.            "author": {
  31.                "@type": "Person",
  32.                "name": "Dr. Justin Brooks",
  33.                "affiliation": {
  34.                    "@type": "Organization",
  35.                    "name": "mit-edu.top"
  36.                },
  37.                "url": "https://blog-272097777162.mit-edu.top/post/2843190576"
  38.            },
  39.            "datePublished": "2025-02-01T13:49:13Z",
  40.            "image": "https://x.mit-edu.top/static/images/post/12.jpg",
  41.            "journal": {
  42.                "@type": "Periodical",
  43.                "name": "mit-edu.top",
  44.                "issn": "10.1069/140430910825"
  45.            },
  46.            "publisher": {
  47.                "@type": "Organization",
  48.                "name": "mit-edu.top",
  49.                "url": "https://blog-272097777162.mit-edu.top"
  50.            },
  51.            "doi": "140430910825",
  52.            "abstract": "The Influence of Gamified Feedback Loops on Behavioral Engagement #140430910825 (2025-02-01)",
  53.            "citation": {
  54.                "@type": "CreativeWork",
  55.                "name": "The Influence of Gamified Feedback Loops on Behavioral Engagement",
  56.                "author": "Dr. Justin Brooks",
  57.                "datePublished": "2025-02-01T13:49:13Z",
  58.                "url": "https://blog-272097777162.mit-edu.top/post/2843190576"
  59.            }
  60.        }
  61.    </script>
  62. </head>
  63.  
  64. <body>
  65.    <div class="site-mobile-menu site-navbar-target">
  66.        <div class="site-mobile-menu-header">
  67.            <div class="site-mobile-menu-close">
  68.                <span class="icofont-close js-menu-toggle"></span>
  69.            </div>
  70.        </div>
  71.        <div class="site-mobile-menu-body"></div>
  72.    </div>
  73.    <nav class="site-nav">
  74.        <div class="container">
  75.            <div class="site-navigation">
  76.                <div class="row">
  77.                    <div class="col-md-6 text-center order-1 order-md-2 mb-3 mb-md-0">
  78.                        <a href="https://blog-272097777162.mit-edu.top" class="logo m-0 text-uppercase">mit-edu.top</a>
  79.                    </div>
  80.                    <div class="col-md-3 order-3 order-md-1">
  81.                    </div>
  82.                </div>
  83.            </div>
  84.        </div>
  85.    </nav>
  86.    <div class="section post-section pt-5">
  87.        <div class="container">
  88.            <div class="row justify-content-center">
  89.                <div class="col-lg-8">
  90.                    <div class="text-center">
  91.                        <img src="https://x.mit-edu.top/static/images/user/20.jpg" alt="The Influence of Gamified Feedback Loops on Behavioral Engagement" title="The Influence of Gamified Feedback Loops on Behavioral Engagement" class="author-pic img-fluid rounded-circle mx-auto">
  92.                    </div>
  93.                    <span class="d-block text-center">Justin Brooks</span>
  94.                    <span class="date d-block text-center small text-uppercase text-black-50 mb-5">2025-02-01</span>
  95.                    <h2 class="heading text-center">The Influence of Gamified Feedback Loops on Behavioral Engagement</h2>
  96.                    <p class="lead mb-4 text-center">Thanks to Justin Brooks for contributing the article "The Influence of Gamified Feedback Loops on Behavioral Engagement".
  97.                    </p>
  98.                    <img src="https://x.mit-edu.top/static/images/post/12.jpg" alt="The Influence of Gamified Feedback Loops on Behavioral Engagement" title="The Influence of Gamified Feedback Loops on Behavioral Engagement" class="img-fluid rounded mb-4 lazyload">
  99.                    <p>The social fabric of gaming is woven through online multiplayer experiences, where players collaborate, compete, and form lasting friendships in virtual realms. Whether teaming up in cooperative missions or facing off in intense PvP battles, the camaraderie and sense of community fostered by online gaming platforms transcend geographical distances, creating bonds that extend beyond the digital domain.</p>
  100. <p>Game soundtracks, with their mesmerizing melodies and epic compositions, serve as the heartbeat of virtual adventures, evoking emotions that amplify the gaming experience. From haunting orchestral scores to adrenaline-pumping electronic beats, music sets the tone for gameplay, enhancing atmosphere, and heightening emotions. The synergy between gameplay and sound creates moments of cinematic grandeur, transforming gaming sessions into epic journeys of the senses.</p>
  101. <p>This paper explores the use of mobile games as educational tools, assessing their effectiveness in teaching various subjects and skills. It discusses the advantages and limitations of game-based learning in mobile contexts.</p>
  102. <p>In the labyrinth of quests and adventures, gamers become digital explorers, venturing into uncharted territories and unraveling mysteries that test their wit and resolve. Whether embarking on a daring rescue mission or delving deep into ancient ruins, each quest becomes a personal journey, shaping characters and forging legends that echo through the annals of gaming history. The thrill of overcoming obstacles and the satisfaction of completing objectives fuel the relentless pursuit of new challenges and the quest for gaming excellence.</p>
  103. <p>This paper explores the globalization of mobile gaming, focusing on the cultural, economic, and technological dimensions of the mobile game industry. It examines how mobile games transcend national borders, shaping global entertainment trends, cultural exchanges, and consumption patterns. The study analyzes the role of international distribution platforms, such as app stores and online marketplaces, in facilitating cross-border gaming experiences, while also considering the impact of localization strategies on cultural representation and game design. Furthermore, the research investigates the economic implications of mobile game globalization, including market entry strategies, pricing models, and the influence of local regulations.</p>
  104.  
  105.                    <p>
  106.                    <a href="/redirect/?url=https://blog-272097777162.mit-edu.top/post/2843190576" target="_blank" class="custom-link">Link</a>
  107.                    </p>
  108.                    <p><a href="https://www.linegames.org/" target="_blank" class="custom-link">External link</a>
  109. <a href="https://www.iliiili.com/" target="_blank" class="custom-link">External link</a>
  110. <a href="https://www.digwow.net/" target="_blank" class="custom-link">External link</a>
  111. <a href="https://www.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  112. <a href="https://www.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  113. <a href="https://846205847075-edu.iliiili.com/" target="_blank" class="custom-link">External link</a>
  114. <a href="https://917914446454-edu.digwow.net/" target="_blank" class="custom-link">External link</a>
  115. <a href="https://460492287908-edu.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  116. <a href="https://592399880582-edu.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  117. <a href="https://937672018168-gov.iliiili.com/" target="_blank" class="custom-link">External link</a>
  118. <a href="https://396187946176-gov.digwow.net/" target="_blank" class="custom-link">External link</a>
  119. <a href="https://165214417174-gov.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  120. <a href="https://386292022641-gov.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  121. <a href="https://345053779290-gov-edu.iliiili.com/" target="_blank" class="custom-link">External link</a>
  122. <a href="https://641358896526-gov-edu.digwow.net/" target="_blank" class="custom-link">External link</a>
  123. <a href="https://828093127733-gov-edu.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  124. <a href="https://000920994130-gov-edu.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  125. <a href="https://020772354253-edu.iliiili.com/?url=https://blog-272097777162.mit-edu.top/post/2843190576" target="_blank" class="custom-link">External link</a>
  126. <a href="https://576340640743-edu.digwow.net/?url=https://blog-272097777162.mit-edu.top/post/2843190576" target="_blank" class="custom-link">External link</a>
  127. <a href="https://733156169136-edu.free-giftcodes.com/?url=https://blog-272097777162.mit-edu.top/post/2843190576" target="_blank" class="custom-link">External link</a>
  128. <a href="https://472908355090-edu.gifthub.com.ru/?url=https://blog-272097777162.mit-edu.top/post/2843190576" target="_blank" class="custom-link">External link</a>
  129. <a href="https://054138502818-gov.iliiili.com/?url=https://blog-272097777162.mit-edu.top/post/2843190576" target="_blank" class="custom-link">External link</a>
  130. <a href="https://534458196386-gov.digwow.net/?url=https://blog-272097777162.mit-edu.top/post/2843190576" target="_blank" class="custom-link">External link</a>
  131. <a href="https://122721727130-gov.free-giftcodes.com/?url=https://blog-272097777162.mit-edu.top/post/2843190576" target="_blank" class="custom-link">External link</a>
  132. <a href="https://080372126671-gov.gifthub.com.ru/?url=https://blog-272097777162.mit-edu.top/post/2843190576" target="_blank" class="custom-link">External link</a>
  133. <a href="https://link.naver.com/bridge?581210832104&amp;url=https://blog-272097777162.mit-edu.top/post/2843190576" target="_blank" class="custom-link">External link</a>
  134. <a href="https://link.naver.com/bridge?286090009146&amp;url=https://naver286090009146-edu.digwow.net" target="_blank" class="custom-link">External link</a>
  135. <a href="https://link.naver.com/bridge?369926185307&amp;url=https://naver369926185307-edu.iliiili.com" target="_blank" class="custom-link">External link</a>
  136. <a href="https://link.naver.com/bridge?390501029739&amp;url=https://naver390501029739-edu.1717173.xyz" target="_blank" class="custom-link">External link</a>
  137. <a href="https://link.naver.com/bridge?730744380383&amp;url=https://naver730744380383-edu.gifthub.com.ru" target="_blank" class="custom-link">External link</a>
  138. <a href="https://link.naver.com/bridge?902532262322&amp;url=https://naver902532262322-gov.digwow.net" target="_blank" class="custom-link">External link</a>
  139. <a href="https://link.naver.com/bridge?425498372346&amp;url=https://naver425498372346-gov.iliiili.com" target="_blank" class="custom-link">External link</a>
  140. <a href="https://link.naver.com/bridge?885824214477&amp;url=https://naver885824214477-gov.1717173.xyz" target="_blank" class="custom-link">External link</a>
  141. <a href="https://link.naver.com/bridge?794927279719&amp;url=https://naver794927279719-gov.gifthub.com.ru" target="_blank" class="custom-link">External link</a>
  142. <a href="https://link.naver.com/bridge?657892571063&amp;url=https://naver657892571063-gov-edu.digwow.net" target="_blank" class="custom-link">External link</a>
  143. <a href="https://link.naver.com/bridge?495932711204&amp;url=https://naver495932711204-gov-edu.iliiili.com" target="_blank" class="custom-link">External link</a>
  144. <a href="https://link.naver.com/bridge?931903968647&amp;url=https://naver931903968647-gov-edu.1717173.xyz" target="_blank" class="custom-link">External link</a>
  145. <a href="https://link.naver.com/bridge?905001350854&amp;url=https://naver905001350854-gov-edu.gifthub.com.ru" target="_blank" class="custom-link">External link</a>
  146. <a href="https://blog-125356749940.gifthub.news/" target="_blank" class="custom-link">External link</a>
  147. <a href="https://blog-237002892392.jp-edu.sbs/" target="_blank" class="custom-link">External link</a>
  148. <a href="https://blog-538523036561.kr-edu.sbs/" target="_blank" class="custom-link">External link</a>
  149. <a href="https://blog-246130264964.krlinkedin.sbs/" target="_blank" class="custom-link">External link</a>
  150. <a href="https://blog-153383536498.mit-edu.sbs/" target="_blank" class="custom-link">External link</a>
  151. <a href="https://blog-702469683206.mit-edu.buzz/" target="_blank" class="custom-link">External link</a>
  152. <a href="https://blog-323729135464.mit-edu.tech/" target="_blank" class="custom-link">External link</a>
  153. <a href="https://blog-828468348594.mit-edu.site/" target="_blank" class="custom-link">External link</a>
  154. <a href="https://blog-453783416798.mit-edu.top/" target="_blank" class="custom-link">External link</a>
  155. <a href="https://blog-701358741588.usa-gov.top/" target="_blank" class="custom-link">External link</a>
  156. <a href="https://research-313172618996.mit-edu.pp.ua/?url=https://blog-272097777162.mit-edu.top/post/2843190576" target="_blank" class="custom-link">External link</a>
  157. <a href="https://research-348928809035.harvard-edu.pp.ua/?url=https://blog-272097777162.mit-edu.top/post/2843190576" target="_blank" class="custom-link">External link</a>
  158. <a href="https://research-809057889107.stanford-edu.pp.ua/?url=https://blog-272097777162.mit-edu.top/post/2843190576" target="_blank" class="custom-link">External link</a>
  159. <a href="https://research-368158893785.cambridge-edu.pp.ua/?url=https://blog-272097777162.mit-edu.top/post/2843190576" target="_blank" class="custom-link">External link</a>
  160. <a href="https://research-575579069965.berkeley-edu.pp.ua/?url=https://blog-272097777162.mit-edu.top/post/2843190576" target="_blank" class="custom-link">External link</a>
  161. <a href="https://research-744754491317.oxford-edu.pp.ua/?url=https://blog-272097777162.mit-edu.top/post/2843190576" target="_blank" class="custom-link">External link</a>
  162. <a href="https://research-196575032689-edu.wwv.pp.ua/?url=https://blog-272097777162.mit-edu.top/post/2843190576" target="_blank" class="custom-link">External link</a>
  163. <a href="https://research-596592066442-edu.sean.pp.ua/?url=https://blog-272097777162.mit-edu.top/post/2843190576" target="_blank" class="custom-link">External link</a>
  164. <a href="https://research-981012832480-edu.line.pp.ua/?url=https://blog-272097777162.mit-edu.top/post/2843190576" target="_blank" class="custom-link">External link</a>
  165. </p>
  166.                    <div class="row mt-5 pt-5 border-top">
  167.                    </div>
  168.                </div>
  169.            </div>
  170.        </div>
  171.    </div>
  172.    <div class="section pb-0">
  173.        <div class="container">
  174.            <div class="row">
  175.                <div class="col-lg-12">
  176.                    <h2 class="heading">Related</h2>
  177.                </div>
  178.            </div>
  179.            <div class="row justify-content-center">
  180.                <div class="col-lg-12">
  181.                    <div class="post-entry d-md-flex small-horizontal mb-5">
  182.                        <div class="me-md-5 thumbnail mb-3 mb-md-0">
  183.                            <a href="https://blog-272097777162.mit-edu.top/post/6823057194">
  184.                            <img src="https://x.mit-edu.top/static/images/post/12.jpg" alt="Predictive Analytics in Game Marketing: Forecasting Trends with Big Data" title="Predictive Analytics in Game Marketing: Forecasting Trends with Big Data" class="img-fluid lazyload">
  185.                            </a>
  186.                        </div>
  187.                        <div class="content">
  188.                            <div class="post-meta mb-3">
  189.                                <a href="https://blog-6823057194.mit-edu.top/post/6823057194/" target="_blank">
  190.                                <span class="date">2025-02-01</span>
  191.                                </a>
  192.                            </div>
  193.                            <h2 class="heading"><a href="https://blog-272097777162.mit-edu.top/post/6823057194">Predictive Analytics in Game Marketing: Forecasting Trends with Big Data</a></h2>
  194.                            <p class="info">A Comparative Analysis This paper provides a comprehensive analysis of various monetization models in mobile gaming, including in-app purchases, advertisements, and subscription services. It compares the effectiveness and ethical considerations of each model, offering recommendations for developers and policymakers.</p>
  195.                            <a href="https://blog-272097777162.mit-edu.top/post/6823057194" class="post-author d-flex align-items-center">
  196.                                <div class="author-pic">
  197.                                    <img src="https://x.mit-edu.top/static/images/user/20.jpg" alt="Predictive Analytics in Game Marketing: Forecasting Trends with Big Data" title="Predictive Analytics in Game Marketing: Forecasting Trends with Big Data" class="lazyload">
  198.                                </div>
  199.                                <div class="text">
  200.                                    <strong>Eric Howard</strong>
  201.                                    <span>2025-02-01 published post</span>
  202.                                </div>
  203.                            </a>
  204.                        </div>
  205.                    </div>
  206.                </div>
  207.                <div class="col-lg-12">
  208.                    <div class="post-entry d-md-flex small-horizontal mb-5">
  209.                        <div class="me-md-5 thumbnail mb-3 mb-md-0">
  210.                            <a href="https://blog-272097777162.mit-edu.top/post/9620358714">
  211.                            <img src="https://x.mit-edu.top/static/images/post/10.jpg" alt="Dynamic Cyber Threat Detection in Competitive Mobile Game Networks" title="Dynamic Cyber Threat Detection in Competitive Mobile Game Networks" class="img-fluid lazyload">
  212.                            </a>
  213.                        </div>
  214.                        <div class="content">
  215.                            <div class="post-meta mb-3">
  216.                                <a href="https://blog-9620358714.mit-edu.top/post/9620358714/" target="_blank">
  217.                                <span class="date">2025-02-01</span>
  218.                                </a>
  219.                            </div>
  220.                            <h2 class="heading"><a href="https://blog-272097777162.mit-edu.top/post/9620358714">Dynamic Cyber Threat Detection in Competitive Mobile Game Networks</a></h2>
  221.                            <p class="info">The siren song of RPGs beckons with its immersive narratives, drawing players into worlds so vividly crafted that the boundaries between reality and fantasy blur, leaving gamers spellbound in their pixelated destinies. From epic tales of heroism and adventure to nuanced character-driven dramas, RPGs offer a storytelling experience unlike any other, allowing players to become the protagonists of their own epic sagas. The freedom to make choices, shape the narrative, and explore vast, richly detailed worlds sparks the imagination and fosters a deep emotional connection with the virtual realms they inhabit.</p>
  222.                            <a href="https://blog-272097777162.mit-edu.top/post/9620358714" class="post-author d-flex align-items-center">
  223.                                <div class="author-pic">
  224.                                    <img src="https://x.mit-edu.top/static/images/user/10.jpg" alt="Dynamic Cyber Threat Detection in Competitive Mobile Game Networks" title="Dynamic Cyber Threat Detection in Competitive Mobile Game Networks" class="lazyload">
  225.                                </div>
  226.                                <div class="text">
  227.                                    <strong>Laura Bell</strong>
  228.                                    <span>2025-02-01 published post</span>
  229.                                </div>
  230.                            </a>
  231.                        </div>
  232.                    </div>
  233.                </div>
  234.                <div class="col-lg-12">
  235.                    <div class="post-entry d-md-flex small-horizontal mb-5">
  236.                        <div class="me-md-5 thumbnail mb-3 mb-md-0">
  237.                            <a href="https://blog-272097777162.mit-edu.top/post/4270361895">
  238.                            <img src="https://x.mit-edu.top/static/images/post/9.jpg" alt="Predictive Analytics for Optimizing In-Game Advertising Revenue" title="Predictive Analytics for Optimizing In-Game Advertising Revenue" class="img-fluid lazyload">
  239.                            </a>
  240.                        </div>
  241.                        <div class="content">
  242.                            <div class="post-meta mb-3">
  243.                                <a href="https://blog-4270361895.mit-edu.top/post/4270361895/" target="_blank">
  244.                                <span class="date">2025-02-01</span>
  245.                                </a>
  246.                            </div>
  247.                            <h2 class="heading"><a href="https://blog-272097777162.mit-edu.top/post/4270361895">Predictive Analytics for Optimizing In-Game Advertising Revenue</a></h2>
  248.                            <p class="info">This study explores how mobile games can be designed to enhance memory retention and recall, investigating the cognitive mechanisms involved in how players remember game events, strategies, and narratives. Drawing on cognitive psychology, the research examines the role of repetition, reinforcement, and narrative structures in improving memory retention. The paper also explores the impact of mobile gaming on the formation of episodic and procedural memory, with particular focus on the implications of gaming for educational settings, rehabilitation programs, and cognitive therapy. It proposes a framework for designing mobile games that optimize memory functions while considering individual differences in memory processing.</p>
  249.                            <a href="https://blog-272097777162.mit-edu.top/post/4270361895" class="post-author d-flex align-items-center">
  250.                                <div class="author-pic">
  251.                                    <img src="https://x.mit-edu.top/static/images/user/16.jpg" alt="Predictive Analytics for Optimizing In-Game Advertising Revenue" title="Predictive Analytics for Optimizing In-Game Advertising Revenue" class="lazyload">
  252.                                </div>
  253.                                <div class="text">
  254.                                    <strong>Harold Matthews</strong>
  255.                                    <span>2025-02-01 published post</span>
  256.                                </div>
  257.                            </a>
  258.                        </div>
  259.                    </div>
  260.                </div>
  261.            </div>
  262.        </div>
  263.    </div>
  264.    <div class="py-5 bg-light mx-md-3 sec-subscribe">
  265.        <div class="container">
  266.            <div class="row">
  267.                <div class="col-lg-12">
  268.                    <h2 class="h4 fw-bold">Subscribe to newsletter</h2>
  269.                </div>
  270.            </div>
  271.            <form class="row">
  272.                <div class="col-md-8">
  273.                    <div class="mb-3 mb-md-0">
  274.                        <input type="email" class="form-control" placeholder="Enter your email">
  275.                    </div>
  276.                </div>
  277.                <div class="col-md-4 d-grid">
  278.                    <input type="submit" class="btn btn-primary" value="Subscribe">
  279.                </div>
  280.            </form>
  281.        </div>
  282.    </div>
  283.    <div class="site-footer">
  284.        <div class="container">
  285.            <div class="row justify-content-center copyright">
  286.                <div class="col-lg-7 text-center">
  287.                    <div class="widget">
  288.                        <p>Copyright &copy;
  289.                            <script>document.write(new Date().getFullYear());</script> All rights reserved.
  290.                        </p>
  291. <p>
  292.    < Top VPS Hosting Choice ><br>
  293.    <a href="https://evolution-host.com?ref=DQgZ6P" target="_blank">
  294.        <img src="https://x.mit-edu.top/static/images/evolution-host.png" alt="Evolution Host" title="Evolution Host" class="evhost lazyload">
  295.    </a>
  296. </p>
  297.                    </div>
  298.                </div>
  299.            </div>
  300.        </div>
  301.    </div>
  302. </body>
  303.  
  304. </html>
Copyright © 2002-9 Sam Ruby, Mark Pilgrim, Joseph Walton, and Phil Ringnalda