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-887303826617.mit-edu.top/post/6219340857

  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>Emotion Recognition Through Biometric Sensors in Mobile Gaming #811937058639 (2025-02-01)</title>
  9.    <link rel="canonical" href="https://blog-887303826617.mit-edu.top/post/6219340857">
  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="Emotion Recognition Through Biometric Sensors in Mobile Gaming" />
  17.    <meta property="og:description" content="Emotion Recognition Through Biometric Sensors in Mobile Gaming #811937058639 (2025-02-01)" />
  18.    <meta property="og:url" content="https://blog-887303826617.mit-edu.top/post/6219340857" />
  19.    <meta property="og:site_name" content="mit-edu.top" />
  20.    <meta property="og:image" content="https://x.mit-edu.top/static/images/post/5.jpg" />
  21.    <meta property="og:article:published_time" content="2025-02-01T01:18:38Z" />
  22.    <meta property="og:article:author" content="Dr. Lisa Walker" />
  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": "Emotion Recognition Through Biometric Sensors in Mobile Gaming #811937058639 (2025-02-01)",
  30.            "author": {
  31.                "@type": "Person",
  32.                "name": "Dr. Lisa Walker",
  33.                "affiliation": {
  34.                    "@type": "Organization",
  35.                    "name": "mit-edu.top"
  36.                },
  37.                "url": "https://blog-887303826617.mit-edu.top/post/6219340857"
  38.            },
  39.            "datePublished": "2025-02-01T01:18:38Z",
  40.            "image": "https://x.mit-edu.top/static/images/post/5.jpg",
  41.            "journal": {
  42.                "@type": "Periodical",
  43.                "name": "mit-edu.top",
  44.                "issn": "10.1069/811937058639"
  45.            },
  46.            "publisher": {
  47.                "@type": "Organization",
  48.                "name": "mit-edu.top",
  49.                "url": "https://blog-887303826617.mit-edu.top"
  50.            },
  51.            "doi": "811937058639",
  52.            "abstract": "Emotion Recognition Through Biometric Sensors in Mobile Gaming #811937058639 (2025-02-01)",
  53.            "citation": {
  54.                "@type": "CreativeWork",
  55.                "name": "Emotion Recognition Through Biometric Sensors in Mobile Gaming",
  56.                "author": "Dr. Lisa Walker",
  57.                "datePublished": "2025-02-01T01:18:38Z",
  58.                "url": "https://blog-887303826617.mit-edu.top/post/6219340857"
  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-887303826617.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/5.jpg" alt="Emotion Recognition Through Biometric Sensors in Mobile Gaming" title="Emotion Recognition Through Biometric Sensors in Mobile Gaming" class="author-pic img-fluid rounded-circle mx-auto">
  92.                    </div>
  93.                    <span class="d-block text-center">Lisa Walker</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">Emotion Recognition Through Biometric Sensors in Mobile Gaming</h2>
  96.                    <p class="lead mb-4 text-center">Thanks to Lisa Walker for contributing the article "Emotion Recognition Through Biometric Sensors in Mobile Gaming".
  97.                    </p>
  98.                    <img src="https://x.mit-edu.top/static/images/post/5.jpg" alt="Emotion Recognition Through Biometric Sensors in Mobile Gaming" title="Emotion Recognition Through Biometric Sensors in Mobile Gaming" class="img-fluid rounded mb-4 lazyload">
  99.                    <p>This paper investigates the use of mobile games and gamification techniques in areas beyond entertainment, such as education, healthcare, and corporate training. It examines how game mechanics are applied to encourage desired behaviors, improve productivity, and enhance learning outcomes. The study also analyzes the effectiveness and challenges of gamification strategies, highlighting case studies from various industries.</p>
  100. <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>
  101. <p>This study examines the psychological effects of mobile game addiction, including its impact on mental health, social relationships, and academic performance. It also explores societal perceptions of gaming addiction and discusses potential interventions and preventive measures.</p>
  102. <p>The fusion of gaming and storytelling has birthed narrative-driven masterpieces that transport players on epic journeys filled with rich characters, moral dilemmas, and immersive worlds. Role-playing games (RPGs), interactive dramas, and story-driven adventures weave intricate narratives that resonate with players on emotional, intellectual, and narrative levels, blurring the line between gaming and literature.</p>
  103. <p>This paper explores the evolution of user interface (UI) design in mobile games, with a focus on how innovative UI elements influence player engagement, immersion, and retention. The study investigates how changes in interface design, such as touch gestures, visual feedback, and adaptive layouts, impact the user experience and contribute to the overall success of a game. Drawing on theories of cognitive load, human-computer interaction (HCI), and usability testing, the paper examines the relationship between UI design and player satisfaction. The research also considers the cultural factors influencing UI design in mobile games and the challenges of creating intuitive interfaces that appeal to diverse player demographics.</p>
  104.  
  105.                    <p>
  106.                    <a href="/redirect/?url=https://blog-887303826617.mit-edu.top/post/6219340857" 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://880117106775-edu.iliiili.com/" target="_blank" class="custom-link">External link</a>
  114. <a href="https://743038632434-edu.digwow.net/" target="_blank" class="custom-link">External link</a>
  115. <a href="https://394448427438-edu.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  116. <a href="https://259837311615-edu.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  117. <a href="https://588732271625-gov.iliiili.com/" target="_blank" class="custom-link">External link</a>
  118. <a href="https://567311237120-gov.digwow.net/" target="_blank" class="custom-link">External link</a>
  119. <a href="https://951123682455-gov.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  120. <a href="https://682855311042-gov.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  121. <a href="https://276988984196-gov-edu.iliiili.com/" target="_blank" class="custom-link">External link</a>
  122. <a href="https://554700379555-gov-edu.digwow.net/" target="_blank" class="custom-link">External link</a>
  123. <a href="https://186291528217-gov-edu.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  124. <a href="https://015424180550-gov-edu.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  125. <a href="https://687543151781-edu.iliiili.com/?url=https://blog-887303826617.mit-edu.top/post/6219340857" target="_blank" class="custom-link">External link</a>
  126. <a href="https://833664366919-edu.digwow.net/?url=https://blog-887303826617.mit-edu.top/post/6219340857" target="_blank" class="custom-link">External link</a>
  127. <a href="https://427482551316-edu.free-giftcodes.com/?url=https://blog-887303826617.mit-edu.top/post/6219340857" target="_blank" class="custom-link">External link</a>
  128. <a href="https://621790984250-edu.gifthub.com.ru/?url=https://blog-887303826617.mit-edu.top/post/6219340857" target="_blank" class="custom-link">External link</a>
  129. <a href="https://796388320079-gov.iliiili.com/?url=https://blog-887303826617.mit-edu.top/post/6219340857" target="_blank" class="custom-link">External link</a>
  130. <a href="https://324556128208-gov.digwow.net/?url=https://blog-887303826617.mit-edu.top/post/6219340857" target="_blank" class="custom-link">External link</a>
  131. <a href="https://396712791420-gov.free-giftcodes.com/?url=https://blog-887303826617.mit-edu.top/post/6219340857" target="_blank" class="custom-link">External link</a>
  132. <a href="https://252260293759-gov.gifthub.com.ru/?url=https://blog-887303826617.mit-edu.top/post/6219340857" target="_blank" class="custom-link">External link</a>
  133. <a href="https://link.naver.com/bridge?361191920692&amp;url=https://blog-887303826617.mit-edu.top/post/6219340857" target="_blank" class="custom-link">External link</a>
  134. <a href="https://link.naver.com/bridge?861904920256&amp;url=https://naver861904920256-edu.digwow.net" target="_blank" class="custom-link">External link</a>
  135. <a href="https://link.naver.com/bridge?386651587607&amp;url=https://naver386651587607-edu.iliiili.com" target="_blank" class="custom-link">External link</a>
  136. <a href="https://link.naver.com/bridge?899868145246&amp;url=https://naver899868145246-edu.1717173.xyz" target="_blank" class="custom-link">External link</a>
  137. <a href="https://link.naver.com/bridge?649675303068&amp;url=https://naver649675303068-edu.gifthub.com.ru" target="_blank" class="custom-link">External link</a>
  138. <a href="https://link.naver.com/bridge?127997677664&amp;url=https://naver127997677664-gov.digwow.net" target="_blank" class="custom-link">External link</a>
  139. <a href="https://link.naver.com/bridge?478093667634&amp;url=https://naver478093667634-gov.iliiili.com" target="_blank" class="custom-link">External link</a>
  140. <a href="https://link.naver.com/bridge?175471393182&amp;url=https://naver175471393182-gov.1717173.xyz" target="_blank" class="custom-link">External link</a>
  141. <a href="https://link.naver.com/bridge?950616063973&amp;url=https://naver950616063973-gov.gifthub.com.ru" target="_blank" class="custom-link">External link</a>
  142. <a href="https://link.naver.com/bridge?240003511068&amp;url=https://naver240003511068-gov-edu.digwow.net" target="_blank" class="custom-link">External link</a>
  143. <a href="https://link.naver.com/bridge?207526812974&amp;url=https://naver207526812974-gov-edu.iliiili.com" target="_blank" class="custom-link">External link</a>
  144. <a href="https://link.naver.com/bridge?580988212312&amp;url=https://naver580988212312-gov-edu.1717173.xyz" target="_blank" class="custom-link">External link</a>
  145. <a href="https://link.naver.com/bridge?674771692454&amp;url=https://naver674771692454-gov-edu.gifthub.com.ru" target="_blank" class="custom-link">External link</a>
  146. <a href="https://blog-045333792880.gifthub.news/" target="_blank" class="custom-link">External link</a>
  147. <a href="https://blog-611853110698.jp-edu.sbs/" target="_blank" class="custom-link">External link</a>
  148. <a href="https://blog-868004519043.kr-edu.sbs/" target="_blank" class="custom-link">External link</a>
  149. <a href="https://blog-422601763958.krlinkedin.sbs/" target="_blank" class="custom-link">External link</a>
  150. <a href="https://blog-260320207017.mit-edu.sbs/" target="_blank" class="custom-link">External link</a>
  151. <a href="https://blog-569474726096.mit-edu.buzz/" target="_blank" class="custom-link">External link</a>
  152. <a href="https://blog-263658584527.mit-edu.tech/" target="_blank" class="custom-link">External link</a>
  153. <a href="https://blog-648359106053.mit-edu.site/" target="_blank" class="custom-link">External link</a>
  154. <a href="https://blog-436145761027.mit-edu.top/" target="_blank" class="custom-link">External link</a>
  155. <a href="https://blog-986438103048.usa-gov.top/" target="_blank" class="custom-link">External link</a>
  156. <a href="https://research-059664018622.mit-edu.pp.ua/?url=https://blog-887303826617.mit-edu.top/post/6219340857" target="_blank" class="custom-link">External link</a>
  157. <a href="https://research-108301009743.harvard-edu.pp.ua/?url=https://blog-887303826617.mit-edu.top/post/6219340857" target="_blank" class="custom-link">External link</a>
  158. <a href="https://research-554968863720.stanford-edu.pp.ua/?url=https://blog-887303826617.mit-edu.top/post/6219340857" target="_blank" class="custom-link">External link</a>
  159. <a href="https://research-231093213144.cambridge-edu.pp.ua/?url=https://blog-887303826617.mit-edu.top/post/6219340857" target="_blank" class="custom-link">External link</a>
  160. <a href="https://research-354328784170.berkeley-edu.pp.ua/?url=https://blog-887303826617.mit-edu.top/post/6219340857" target="_blank" class="custom-link">External link</a>
  161. <a href="https://research-957339352562.oxford-edu.pp.ua/?url=https://blog-887303826617.mit-edu.top/post/6219340857" target="_blank" class="custom-link">External link</a>
  162. <a href="https://research-893217742285-edu.wwv.pp.ua/?url=https://blog-887303826617.mit-edu.top/post/6219340857" target="_blank" class="custom-link">External link</a>
  163. <a href="https://research-153660755499-edu.sean.pp.ua/?url=https://blog-887303826617.mit-edu.top/post/6219340857" target="_blank" class="custom-link">External link</a>
  164. <a href="https://research-324681970291-edu.line.pp.ua/?url=https://blog-887303826617.mit-edu.top/post/6219340857" 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-887303826617.mit-edu.top/post/7295183064">
  184.                            <img src="https://x.mit-edu.top/static/images/post/5.jpg" alt="A Predictive Model for Player Lifetime Value in Freemium Games" title="A Predictive Model for Player Lifetime Value in Freemium Games" class="img-fluid lazyload">
  185.                            </a>
  186.                        </div>
  187.                        <div class="content">
  188.                            <div class="post-meta mb-3">
  189.                                <a href="https://blog-7295183064.mit-edu.top/post/7295183064/" target="_blank">
  190.                                <span class="date">2025-02-01</span>
  191.                                </a>
  192.                            </div>
  193.                            <h2 class="heading"><a href="https://blog-887303826617.mit-edu.top/post/7295183064">A Predictive Model for Player Lifetime Value in Freemium Games</a></h2>
  194.                            <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. Beyond gaming itself, this global community often rallies around charitable causes, organizing fundraising events, and using their collective influence for social good, showcasing the positive impact of gaming on society.</p>
  195.                            <a href="https://blog-887303826617.mit-edu.top/post/7295183064" class="post-author d-flex align-items-center">
  196.                                <div class="author-pic">
  197.                                    <img src="https://x.mit-edu.top/static/images/user/5.jpg" alt="A Predictive Model for Player Lifetime Value in Freemium Games" title="A Predictive Model for Player Lifetime Value in Freemium Games" class="lazyload">
  198.                                </div>
  199.                                <div class="text">
  200.                                    <strong>Carol Campbell</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-887303826617.mit-edu.top/post/2570413689">
  211.                            <img src="https://x.mit-edu.top/static/images/post/18.jpg" alt="Digital Colonialism in Game Worlds: A Post-Colonial Critique of Mobile Game Narratives" title="Digital Colonialism in Game Worlds: A Post-Colonial Critique of Mobile Game Narratives" class="img-fluid lazyload">
  212.                            </a>
  213.                        </div>
  214.                        <div class="content">
  215.                            <div class="post-meta mb-3">
  216.                                <a href="https://blog-2570413689.mit-edu.top/post/2570413689/" target="_blank">
  217.                                <span class="date">2025-02-01</span>
  218.                                </a>
  219.                            </div>
  220.                            <h2 class="heading"><a href="https://blog-887303826617.mit-edu.top/post/2570413689">Digital Colonialism in Game Worlds: A Post-Colonial Critique of Mobile Game Narratives</a></h2>
  221.                            <p class="info">This paper investigates the legal and ethical considerations surrounding data collection and user tracking in mobile games. The research examines how mobile game developers collect, store, and utilize player data, including behavioral data, location information, and in-app purchases, to enhance gameplay and monetization strategies. Drawing on data privacy laws such as the General Data Protection Regulation (GDPR) and the California Consumer Privacy Act (CCPA), the study explores the compliance challenges that mobile game developers face and the ethical implications of player data usage. The paper provides a critical analysis of how developers can balance the need for data with respect for user privacy, offering guidelines for transparent data practices and ethical data management in mobile game development.</p>
  222.                            <a href="https://blog-887303826617.mit-edu.top/post/2570413689" class="post-author d-flex align-items-center">
  223.                                <div class="author-pic">
  224.                                    <img src="https://x.mit-edu.top/static/images/user/5.jpg" alt="Digital Colonialism in Game Worlds: A Post-Colonial Critique of Mobile Game Narratives" title="Digital Colonialism in Game Worlds: A Post-Colonial Critique of Mobile Game Narratives" class="lazyload">
  225.                                </div>
  226.                                <div class="text">
  227.                                    <strong>Evelyn Griffin</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-887303826617.mit-edu.top/post/6837140295">
  238.                            <img src="https://x.mit-edu.top/static/images/post/3.jpg" alt="Interactive Storytelling in Augmented Reality Games: A Player-Centric Framework" title="Interactive Storytelling in Augmented Reality Games: A Player-Centric Framework" class="img-fluid lazyload">
  239.                            </a>
  240.                        </div>
  241.                        <div class="content">
  242.                            <div class="post-meta mb-3">
  243.                                <a href="https://blog-6837140295.mit-edu.top/post/6837140295/" target="_blank">
  244.                                <span class="date">2025-02-01</span>
  245.                                </a>
  246.                            </div>
  247.                            <h2 class="heading"><a href="https://blog-887303826617.mit-edu.top/post/6837140295">Interactive Storytelling in Augmented Reality Games: A Player-Centric Framework</a></h2>
  248.                            <p class="info">This study examines how mobile games can be used as tools for promoting environmental awareness and sustainability. It investigates game mechanics that encourage players to engage in pro-environmental behaviors, such as resource conservation and eco-friendly practices. The paper highlights examples of games that address climate change, conservation, and environmental education, offering insights into how games can influence attitudes and behaviors related to sustainability.</p>
  249.                            <a href="https://blog-887303826617.mit-edu.top/post/6837140295" class="post-author d-flex align-items-center">
  250.                                <div class="author-pic">
  251.                                    <img src="https://x.mit-edu.top/static/images/user/2.jpg" alt="Interactive Storytelling in Augmented Reality Games: A Player-Centric Framework" title="Interactive Storytelling in Augmented Reality Games: A Player-Centric Framework" class="lazyload">
  252.                                </div>
  253.                                <div class="text">
  254.                                    <strong>Donna Perez</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