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-157245242024.mit-edu.top/post/1906843752

  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>Automating Security Testing in Mobile Game Development Pipelines #454169883013 (2025-02-01)</title>
  9.    <link rel="canonical" href="https://blog-157245242024.mit-edu.top/post/1906843752">
  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="Automating Security Testing in Mobile Game Development Pipelines" />
  17.    <meta property="og:description" content="Automating Security Testing in Mobile Game Development Pipelines #454169883013 (2025-02-01)" />
  18.    <meta property="og:url" content="https://blog-157245242024.mit-edu.top/post/1906843752" />
  19.    <meta property="og:site_name" content="mit-edu.top" />
  20.    <meta property="og:image" content="https://x.mit-edu.top/static/images/post/14.jpg" />
  21.    <meta property="og:article:published_time" content="2025-01-31T23:56:54Z" />
  22.    <meta property="og:article:author" content="Dr. Emma Price" />
  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": "Automating Security Testing in Mobile Game Development Pipelines #454169883013 (2025-02-01)",
  30.            "author": {
  31.                "@type": "Person",
  32.                "name": "Dr. Emma Price",
  33.                "affiliation": {
  34.                    "@type": "Organization",
  35.                    "name": "mit-edu.top"
  36.                },
  37.                "url": "https://blog-157245242024.mit-edu.top/post/1906843752"
  38.            },
  39.            "datePublished": "2025-01-31T23:56:54Z",
  40.            "image": "https://x.mit-edu.top/static/images/post/14.jpg",
  41.            "journal": {
  42.                "@type": "Periodical",
  43.                "name": "mit-edu.top",
  44.                "issn": "10.1069/454169883013"
  45.            },
  46.            "publisher": {
  47.                "@type": "Organization",
  48.                "name": "mit-edu.top",
  49.                "url": "https://blog-157245242024.mit-edu.top"
  50.            },
  51.            "doi": "454169883013",
  52.            "abstract": "Automating Security Testing in Mobile Game Development Pipelines #454169883013 (2025-02-01)",
  53.            "citation": {
  54.                "@type": "CreativeWork",
  55.                "name": "Automating Security Testing in Mobile Game Development Pipelines",
  56.                "author": "Dr. Emma Price",
  57.                "datePublished": "2025-01-31T23:56:54Z",
  58.                "url": "https://blog-157245242024.mit-edu.top/post/1906843752"
  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-157245242024.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/7.jpg" alt="Automating Security Testing in Mobile Game Development Pipelines" title="Automating Security Testing in Mobile Game Development Pipelines" class="author-pic img-fluid rounded-circle mx-auto">
  92.                    </div>
  93.                    <span class="d-block text-center">Emma Price</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">Automating Security Testing in Mobile Game Development Pipelines</h2>
  96.                    <p class="lead mb-4 text-center">Thanks to Emma Price for contributing the article "Automating Security Testing in Mobile Game Development Pipelines".
  97.                    </p>
  98.                    <img src="https://x.mit-edu.top/static/images/post/14.jpg" alt="Automating Security Testing in Mobile Game Development Pipelines" title="Automating Security Testing in Mobile Game Development Pipelines" class="img-fluid rounded mb-4 lazyload">
  99.                    <p>This study compares the educational efficacy of mobile games designed for learning with those created purely for entertainment purposes, examining their impacts on knowledge retention, critical thinking, and problem-solving skills. Drawing from educational theory, cognitive psychology, and game design, the research evaluates how various game mechanics—such as points, challenges, and feedback loops—affect learning outcomes. The paper investigates how mobile games can bridge the gap between fun and education, proposing a framework for creating hybrid games that are both enjoyable and educational. The research also addresses the challenges of assessing learning outcomes in gamified environments and the role of player motivation in educational success.</p>
  100. <p>The future of gaming is a tapestry woven with technological innovations, creative visions, and player-driven evolution. Advancements in artificial intelligence (AI), virtual reality (VR), augmented reality (AR), cloud gaming, and blockchain technology promise to revolutionize how we play, experience, and interact with games, ushering in an era of unprecedented possibilities and immersive experiences.</p>
  101. <p>This study explores the integration of narrative design and gameplay mechanics in mobile games, focusing on how immersive storytelling can enhance player engagement and emotional investment. The research investigates how developers use branching narratives, character development, and world-building elements to create compelling storylines that drive player interaction and decision-making. Drawing on narrative theory and interactive storytelling principles, the paper examines how different narrative structures—such as linear, non-linear, and emergent storytelling—affect player experience in mobile games. The research also discusses the role of player agency in shaping the narrative and the challenges of balancing narrative depth with gameplay accessibility in mobile games.</p>
  102. <p>The intricate game mechanics of modern titles challenge players on multiple levels. From mastering complex skill trees and managing in-game economies to coordinating with teammates in high-stakes raids, players must think critically, adapt quickly, and collaborate effectively to achieve victory. These challenges not only test cognitive abilities but also foster valuable skills such as teamwork, problem-solving, and resilience, making gaming not just an entertaining pastime but also a platform for personal growth and development.</p>
  103. <p>Accessibility initiatives in gaming are essential to ensuring inclusivity and equal opportunities for players of all abilities. Features such as customizable controls, colorblind modes, subtitles, and assistive technologies empower gamers with disabilities to enjoy gaming experiences on par with their peers, fostering a more inclusive and welcoming gaming ecosystem.</p>
  104.  
  105.                    <p>
  106.                    <a href="/redirect/?url=https://blog-157245242024.mit-edu.top/post/1906843752" 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://806293411598-edu.iliiili.com/" target="_blank" class="custom-link">External link</a>
  114. <a href="https://828183293603-edu.digwow.net/" target="_blank" class="custom-link">External link</a>
  115. <a href="https://483517907526-edu.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  116. <a href="https://968017900729-edu.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  117. <a href="https://158419857119-gov.iliiili.com/" target="_blank" class="custom-link">External link</a>
  118. <a href="https://809551247159-gov.digwow.net/" target="_blank" class="custom-link">External link</a>
  119. <a href="https://949922937788-gov.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  120. <a href="https://664485465320-gov.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  121. <a href="https://555360255258-gov-edu.iliiili.com/" target="_blank" class="custom-link">External link</a>
  122. <a href="https://442120097445-gov-edu.digwow.net/" target="_blank" class="custom-link">External link</a>
  123. <a href="https://981524679106-gov-edu.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  124. <a href="https://232858693915-gov-edu.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  125. <a href="https://915659258310-edu.iliiili.com/?url=https://blog-157245242024.mit-edu.top/post/1906843752" target="_blank" class="custom-link">External link</a>
  126. <a href="https://877898421706-edu.digwow.net/?url=https://blog-157245242024.mit-edu.top/post/1906843752" target="_blank" class="custom-link">External link</a>
  127. <a href="https://576967468034-edu.free-giftcodes.com/?url=https://blog-157245242024.mit-edu.top/post/1906843752" target="_blank" class="custom-link">External link</a>
  128. <a href="https://059891978658-edu.gifthub.com.ru/?url=https://blog-157245242024.mit-edu.top/post/1906843752" target="_blank" class="custom-link">External link</a>
  129. <a href="https://500670338924-gov.iliiili.com/?url=https://blog-157245242024.mit-edu.top/post/1906843752" target="_blank" class="custom-link">External link</a>
  130. <a href="https://671574970969-gov.digwow.net/?url=https://blog-157245242024.mit-edu.top/post/1906843752" target="_blank" class="custom-link">External link</a>
  131. <a href="https://057922773731-gov.free-giftcodes.com/?url=https://blog-157245242024.mit-edu.top/post/1906843752" target="_blank" class="custom-link">External link</a>
  132. <a href="https://864767224372-gov.gifthub.com.ru/?url=https://blog-157245242024.mit-edu.top/post/1906843752" target="_blank" class="custom-link">External link</a>
  133. <a href="https://link.naver.com/bridge?870866862554&amp;url=https://blog-157245242024.mit-edu.top/post/1906843752" target="_blank" class="custom-link">External link</a>
  134. <a href="https://link.naver.com/bridge?832216303779&amp;url=https://naver832216303779-edu.digwow.net" target="_blank" class="custom-link">External link</a>
  135. <a href="https://link.naver.com/bridge?592929206292&amp;url=https://naver592929206292-edu.iliiili.com" target="_blank" class="custom-link">External link</a>
  136. <a href="https://link.naver.com/bridge?989135628840&amp;url=https://naver989135628840-edu.1717173.xyz" target="_blank" class="custom-link">External link</a>
  137. <a href="https://link.naver.com/bridge?570857706999&amp;url=https://naver570857706999-edu.gifthub.com.ru" target="_blank" class="custom-link">External link</a>
  138. <a href="https://link.naver.com/bridge?920640938851&amp;url=https://naver920640938851-gov.digwow.net" target="_blank" class="custom-link">External link</a>
  139. <a href="https://link.naver.com/bridge?424218265341&amp;url=https://naver424218265341-gov.iliiili.com" target="_blank" class="custom-link">External link</a>
  140. <a href="https://link.naver.com/bridge?021721713777&amp;url=https://naver021721713777-gov.1717173.xyz" target="_blank" class="custom-link">External link</a>
  141. <a href="https://link.naver.com/bridge?761657899220&amp;url=https://naver761657899220-gov.gifthub.com.ru" target="_blank" class="custom-link">External link</a>
  142. <a href="https://link.naver.com/bridge?056681793866&amp;url=https://naver056681793866-gov-edu.digwow.net" target="_blank" class="custom-link">External link</a>
  143. <a href="https://link.naver.com/bridge?037315192258&amp;url=https://naver037315192258-gov-edu.iliiili.com" target="_blank" class="custom-link">External link</a>
  144. <a href="https://link.naver.com/bridge?947960966634&amp;url=https://naver947960966634-gov-edu.1717173.xyz" target="_blank" class="custom-link">External link</a>
  145. <a href="https://link.naver.com/bridge?703190894526&amp;url=https://naver703190894526-gov-edu.gifthub.com.ru" target="_blank" class="custom-link">External link</a>
  146. <a href="https://blog-146472266062.gifthub.news/" target="_blank" class="custom-link">External link</a>
  147. <a href="https://blog-159722192511.jp-edu.sbs/" target="_blank" class="custom-link">External link</a>
  148. <a href="https://blog-691154778315.kr-edu.sbs/" target="_blank" class="custom-link">External link</a>
  149. <a href="https://blog-642248454336.krlinkedin.sbs/" target="_blank" class="custom-link">External link</a>
  150. <a href="https://blog-546807077183.mit-edu.sbs/" target="_blank" class="custom-link">External link</a>
  151. <a href="https://blog-660401066280.mit-edu.buzz/" target="_blank" class="custom-link">External link</a>
  152. <a href="https://blog-126669224805.mit-edu.tech/" target="_blank" class="custom-link">External link</a>
  153. <a href="https://blog-612431797848.mit-edu.site/" target="_blank" class="custom-link">External link</a>
  154. <a href="https://blog-044672795352.mit-edu.top/" target="_blank" class="custom-link">External link</a>
  155. <a href="https://blog-384875446680.usa-gov.top/" target="_blank" class="custom-link">External link</a>
  156. <a href="https://research-869644448806.mit-edu.pp.ua/?url=https://blog-157245242024.mit-edu.top/post/1906843752" target="_blank" class="custom-link">External link</a>
  157. <a href="https://research-176712050437.harvard-edu.pp.ua/?url=https://blog-157245242024.mit-edu.top/post/1906843752" target="_blank" class="custom-link">External link</a>
  158. <a href="https://research-972640637691.stanford-edu.pp.ua/?url=https://blog-157245242024.mit-edu.top/post/1906843752" target="_blank" class="custom-link">External link</a>
  159. <a href="https://research-036927644226.cambridge-edu.pp.ua/?url=https://blog-157245242024.mit-edu.top/post/1906843752" target="_blank" class="custom-link">External link</a>
  160. <a href="https://research-421575373538.berkeley-edu.pp.ua/?url=https://blog-157245242024.mit-edu.top/post/1906843752" target="_blank" class="custom-link">External link</a>
  161. <a href="https://research-601360574167.oxford-edu.pp.ua/?url=https://blog-157245242024.mit-edu.top/post/1906843752" target="_blank" class="custom-link">External link</a>
  162. <a href="https://research-922354007154-edu.wwv.pp.ua/?url=https://blog-157245242024.mit-edu.top/post/1906843752" target="_blank" class="custom-link">External link</a>
  163. <a href="https://research-691045805942-edu.sean.pp.ua/?url=https://blog-157245242024.mit-edu.top/post/1906843752" target="_blank" class="custom-link">External link</a>
  164. <a href="https://research-009516309544-edu.line.pp.ua/?url=https://blog-157245242024.mit-edu.top/post/1906843752" 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-157245242024.mit-edu.top/post/8107562934">
  184.                            <img src="https://x.mit-edu.top/static/images/post/14.jpg" alt="Designing Empathy-Driven Games for Social and Political Impact" title="Designing Empathy-Driven Games for Social and Political Impact" class="img-fluid lazyload">
  185.                            </a>
  186.                        </div>
  187.                        <div class="content">
  188.                            <div class="post-meta mb-3">
  189.                                <a href="https://blog-8107562934.mit-edu.top/post/8107562934/" target="_blank">
  190.                                <span class="date">2025-02-01</span>
  191.                                </a>
  192.                            </div>
  193.                            <h2 class="heading"><a href="https://blog-157245242024.mit-edu.top/post/8107562934">Designing Empathy-Driven Games for Social and Political Impact</a></h2>
  194.                            <p class="info">The allure of virtual worlds is undeniably powerful, drawing players into immersive realms where they can become anything from heroic warriors wielding enchanted swords to cunning strategists orchestrating grand schemes of conquest and diplomacy. These virtual realms are not just spaces for gaming but also avenues for self-expression and creativity, where players can customize their avatars, design unique outfits, and build virtual homes or kingdoms. The sense of agency and control over one's digital identity adds another layer of fascination to the gaming experience, blurring the boundaries between fantasy and reality.</p>
  195.                            <a href="https://blog-157245242024.mit-edu.top/post/8107562934" class="post-author d-flex align-items-center">
  196.                                <div class="author-pic">
  197.                                    <img src="https://x.mit-edu.top/static/images/user/7.jpg" alt="Designing Empathy-Driven Games for Social and Political Impact" title="Designing Empathy-Driven Games for Social and Political Impact" class="lazyload">
  198.                                </div>
  199.                                <div class="text">
  200.                                    <strong>Jeffrey Reed</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-157245242024.mit-edu.top/post/3670428951">
  211.                            <img src="https://x.mit-edu.top/static/images/post/1.jpg" alt="The Psychology of Gift-Giving Mechanics in Mobile Social Games" title="The Psychology of Gift-Giving Mechanics in Mobile Social Games" class="img-fluid lazyload">
  212.                            </a>
  213.                        </div>
  214.                        <div class="content">
  215.                            <div class="post-meta mb-3">
  216.                                <a href="https://blog-3670428951.mit-edu.top/post/3670428951/" target="_blank">
  217.                                <span class="date">2025-02-01</span>
  218.                                </a>
  219.                            </div>
  220.                            <h2 class="heading"><a href="https://blog-157245242024.mit-edu.top/post/3670428951">The Psychology of Gift-Giving Mechanics in Mobile Social Games</a></h2>
  221.                            <p class="info">Gaming culture has evolved into a vibrant and interconnected community where players from diverse backgrounds and cultures converge. They share strategies, forge lasting alliances, and engage in friendly competition, turning virtual friendships into real-world connections that span continents. This global network of gamers not only celebrates shared interests and passions but also fosters a sense of unity and belonging in a world that can often feel fragmented. From online forums and social media groups to live gaming events and conventions, the camaraderie and mutual respect among gamers continue to strengthen the bonds that unite this dynamic community.</p>
  222.                            <a href="https://blog-157245242024.mit-edu.top/post/3670428951" class="post-author d-flex align-items-center">
  223.                                <div class="author-pic">
  224.                                    <img src="https://x.mit-edu.top/static/images/user/12.jpg" alt="The Psychology of Gift-Giving Mechanics in Mobile Social Games" title="The Psychology of Gift-Giving Mechanics in Mobile Social Games" class="lazyload">
  225.                                </div>
  226.                                <div class="text">
  227.                                    <strong>Gary Rivera</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-157245242024.mit-edu.top/post/7564201983">
  238.                            <img src="https://x.mit-edu.top/static/images/post/14.jpg" alt="Cultural Contexts in the Adoption of Narrative Mobile Games: A Comparative Study" title="Cultural Contexts in the Adoption of Narrative Mobile Games: A Comparative Study" class="img-fluid lazyload">
  239.                            </a>
  240.                        </div>
  241.                        <div class="content">
  242.                            <div class="post-meta mb-3">
  243.                                <a href="https://blog-7564201983.mit-edu.top/post/7564201983/" target="_blank">
  244.                                <span class="date">2025-02-01</span>
  245.                                </a>
  246.                            </div>
  247.                            <h2 class="heading"><a href="https://blog-157245242024.mit-edu.top/post/7564201983">Cultural Contexts in the Adoption of Narrative Mobile Games: A Comparative Study</a></h2>
  248.                            <p class="info">This study explores the integration of augmented reality (AR) technologies in mobile games, examining how AR enhances user engagement and immersion. It discusses technical challenges, user acceptance, and the future potential of AR in mobile gaming.</p>
  249.                            <a href="https://blog-157245242024.mit-edu.top/post/7564201983" class="post-author d-flex align-items-center">
  250.                                <div class="author-pic">
  251.                                    <img src="https://x.mit-edu.top/static/images/user/5.jpg" alt="Cultural Contexts in the Adoption of Narrative Mobile Games: A Comparative Study" title="Cultural Contexts in the Adoption of Narrative Mobile Games: A Comparative Study" class="lazyload">
  252.                                </div>
  253.                                <div class="text">
  254.                                    <strong>Jason Morris</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