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-892180845740.mit-edu.top/post/6290835174

  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>Context-Aware AR Games for Promoting Sustainable Urban Living #565471952602 (2025-02-05)</title>
  9.    <link rel="canonical" href="https://blog-892180845740.mit-edu.top/post/6290835174">
  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="Context-Aware AR Games for Promoting Sustainable Urban Living" />
  17.    <meta property="og:description" content="Context-Aware AR Games for Promoting Sustainable Urban Living #565471952602 (2025-02-05)" />
  18.    <meta property="og:url" content="https://blog-892180845740.mit-edu.top/post/6290835174" />
  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="2025-02-04T17:55:13Z" />
  22.    <meta property="og:article:author" content="Dr. Sharon Cox" />
  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": "Context-Aware AR Games for Promoting Sustainable Urban Living #565471952602 (2025-02-05)",
  30.            "author": {
  31.                "@type": "Person",
  32.                "name": "Dr. Sharon Cox",
  33.                "affiliation": {
  34.                    "@type": "Organization",
  35.                    "name": "mit-edu.top"
  36.                },
  37.                "url": "https://blog-892180845740.mit-edu.top/post/6290835174"
  38.            },
  39.            "datePublished": "2025-02-04T17:55:13Z",
  40.            "image": "https://x.mit-edu.top/static/images/post/14.jpg",
  41.            "journal": {
  42.                "@type": "Periodical",
  43.                "name": "mit-edu.top",
  44.                "issn": "10.1069/565471952602"
  45.            },
  46.            "publisher": {
  47.                "@type": "Organization",
  48.                "name": "mit-edu.top",
  49.                "url": "https://blog-892180845740.mit-edu.top"
  50.            },
  51.            "doi": "565471952602",
  52.            "abstract": "Context-Aware AR Games for Promoting Sustainable Urban Living #565471952602 (2025-02-05)",
  53.            "citation": {
  54.                "@type": "CreativeWork",
  55.                "name": "Context-Aware AR Games for Promoting Sustainable Urban Living",
  56.                "author": "Dr. Sharon Cox",
  57.                "datePublished": "2025-02-04T17:55:13Z",
  58.                "url": "https://blog-892180845740.mit-edu.top/post/6290835174"
  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-892180845740.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/14.jpg" alt="Context-Aware AR Games for Promoting Sustainable Urban Living" title="Context-Aware AR Games for Promoting Sustainable Urban Living" class="author-pic img-fluid rounded-circle mx-auto">
  92.                    </div>
  93.                    <span class="d-block text-center">Sharon Cox</span>
  94.                    <span class="date d-block text-center small text-uppercase text-black-50 mb-5">2025-02-05</span>
  95.                    <h2 class="heading text-center">Context-Aware AR Games for Promoting Sustainable Urban Living</h2>
  96.                    <p class="lead mb-4 text-center">Thanks to Sharon Cox for contributing the article "Context-Aware AR Games for Promoting Sustainable Urban Living".
  97.                    </p>
  98.                    <img src="https://x.mit-edu.top/static/images/post/14.jpg" alt="Context-Aware AR Games for Promoting Sustainable Urban Living" title="Context-Aware AR Games for Promoting Sustainable Urban Living" class="img-fluid rounded mb-4 lazyload">
  99.                    <p>This study explores the social and economic implications of microtransactions in mobile gaming, focusing on player behavior, spending patterns, and the potential for addiction. It also investigates the broader effects on the gaming industry, such as the shift in business models, the emergence of virtual economies, and the ethical concerns surrounding "pay-to-win" mechanics. The research offers policy recommendations to address these issues in a balanced manner.</p>
  100. <p>This study applies social psychology theories to understand how group identity and collective behavior are formed and manifested within multiplayer mobile games. The research investigates the ways in which players form alliances, establish group norms, and engage in cooperative or competitive behaviors. By analyzing case studies of popular multiplayer mobile games, the paper explores the role of ingroups and outgroups, social influence, and group polarization within game environments. It also examines the psychological effects of online social interaction in gaming communities, discussing how mobile games foster both prosocial behavior and toxic interactions within groups.</p>
  101. <p>This paper applies Cognitive Load Theory (CLT) to the design and analysis of mobile games, focusing on how game mechanics, narrative structures, and visual stimuli impact players' cognitive load during gameplay. The study investigates how high levels of cognitive load can hinder learning outcomes and gameplay performance, especially in complex puzzle or strategy games. By combining cognitive psychology and game design theory, the paper develops a framework for balancing intrinsic, extraneous, and germane cognitive load in mobile game environments. The research offers guidelines for developers to optimize user experiences by enhancing mental performance and reducing cognitive fatigue.</p>
  102. <p>This study investigates the use of gamification techniques in mobile learning applications, focusing on how game-like elements such as scoring, badges, and leaderboards influence user engagement and motivation. It assesses the effectiveness of gamification in enhancing learning outcomes, particularly in educational apps targeting children and young adults. The paper also addresses challenges in designing gamified systems that balance educational value with entertainment.</p>
  103. <p>Game developers are the visionary architects behind the mesmerizing worlds and captivating narratives that define modern gaming experiences. Their tireless innovation and creativity have propelled the industry forward, delivering groundbreaking titles that blur the line between reality and fantasy, leaving players awestruck and eager for the next technological marvel.</p>
  104.  
  105.                    <p>
  106.                    <a href="/redirect/?url=https://blog-892180845740.mit-edu.top/post/6290835174" 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://306379497435-edu.iliiili.com/" target="_blank" class="custom-link">External link</a>
  114. <a href="https://794311985254-edu.digwow.net/" target="_blank" class="custom-link">External link</a>
  115. <a href="https://517707538265-edu.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  116. <a href="https://214057537068-edu.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  117. <a href="https://266892243924-gov.iliiili.com/" target="_blank" class="custom-link">External link</a>
  118. <a href="https://677404025521-gov.digwow.net/" target="_blank" class="custom-link">External link</a>
  119. <a href="https://384090817596-gov.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  120. <a href="https://810113670321-gov.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  121. <a href="https://834386515915-gov-edu.iliiili.com/" target="_blank" class="custom-link">External link</a>
  122. <a href="https://006856438559-gov-edu.digwow.net/" target="_blank" class="custom-link">External link</a>
  123. <a href="https://817950143581-gov-edu.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  124. <a href="https://233734344920-gov-edu.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  125. <a href="https://674520512308-edu.iliiili.com/?url=https://blog-892180845740.mit-edu.top/post/6290835174" target="_blank" class="custom-link">External link</a>
  126. <a href="https://322770994277-edu.digwow.net/?url=https://blog-892180845740.mit-edu.top/post/6290835174" target="_blank" class="custom-link">External link</a>
  127. <a href="https://701203270723-edu.free-giftcodes.com/?url=https://blog-892180845740.mit-edu.top/post/6290835174" target="_blank" class="custom-link">External link</a>
  128. <a href="https://884015947114-edu.gifthub.com.ru/?url=https://blog-892180845740.mit-edu.top/post/6290835174" target="_blank" class="custom-link">External link</a>
  129. <a href="https://214632302423-gov.iliiili.com/?url=https://blog-892180845740.mit-edu.top/post/6290835174" target="_blank" class="custom-link">External link</a>
  130. <a href="https://850933211722-gov.digwow.net/?url=https://blog-892180845740.mit-edu.top/post/6290835174" target="_blank" class="custom-link">External link</a>
  131. <a href="https://217039550913-gov.free-giftcodes.com/?url=https://blog-892180845740.mit-edu.top/post/6290835174" target="_blank" class="custom-link">External link</a>
  132. <a href="https://254507883986-gov.gifthub.com.ru/?url=https://blog-892180845740.mit-edu.top/post/6290835174" target="_blank" class="custom-link">External link</a>
  133. <a href="https://link.naver.com/bridge?308570702505&amp;url=https://blog-892180845740.mit-edu.top/post/6290835174" target="_blank" class="custom-link">External link</a>
  134. <a href="https://link.naver.com/bridge?451443869219&amp;url=https://naver451443869219-edu.digwow.net" target="_blank" class="custom-link">External link</a>
  135. <a href="https://link.naver.com/bridge?008306037884&amp;url=https://naver008306037884-edu.iliiili.com" target="_blank" class="custom-link">External link</a>
  136. <a href="https://link.naver.com/bridge?964214750904&amp;url=https://naver964214750904-edu.1717173.xyz" target="_blank" class="custom-link">External link</a>
  137. <a href="https://link.naver.com/bridge?281213124054&amp;url=https://naver281213124054-edu.gifthub.com.ru" target="_blank" class="custom-link">External link</a>
  138. <a href="https://link.naver.com/bridge?668346842264&amp;url=https://naver668346842264-gov.digwow.net" target="_blank" class="custom-link">External link</a>
  139. <a href="https://link.naver.com/bridge?740730269481&amp;url=https://naver740730269481-gov.iliiili.com" target="_blank" class="custom-link">External link</a>
  140. <a href="https://link.naver.com/bridge?803309865600&amp;url=https://naver803309865600-gov.1717173.xyz" target="_blank" class="custom-link">External link</a>
  141. <a href="https://link.naver.com/bridge?284510094078&amp;url=https://naver284510094078-gov.gifthub.com.ru" target="_blank" class="custom-link">External link</a>
  142. <a href="https://link.naver.com/bridge?004053243674&amp;url=https://naver004053243674-gov-edu.digwow.net" target="_blank" class="custom-link">External link</a>
  143. <a href="https://link.naver.com/bridge?551111140602&amp;url=https://naver551111140602-gov-edu.iliiili.com" target="_blank" class="custom-link">External link</a>
  144. <a href="https://link.naver.com/bridge?602109910425&amp;url=https://naver602109910425-gov-edu.1717173.xyz" target="_blank" class="custom-link">External link</a>
  145. <a href="https://link.naver.com/bridge?849207662774&amp;url=https://naver849207662774-gov-edu.gifthub.com.ru" target="_blank" class="custom-link">External link</a>
  146. <a href="https://blog-999959220430.gifthub.news/" target="_blank" class="custom-link">External link</a>
  147. <a href="https://blog-432484979990.jp-edu.sbs/" target="_blank" class="custom-link">External link</a>
  148. <a href="https://blog-666944334230.kr-edu.sbs/" target="_blank" class="custom-link">External link</a>
  149. <a href="https://blog-252206340689.krlinkedin.sbs/" target="_blank" class="custom-link">External link</a>
  150. <a href="https://blog-186076032726.mit-edu.sbs/" target="_blank" class="custom-link">External link</a>
  151. <a href="https://blog-260693619949.mit-edu.buzz/" target="_blank" class="custom-link">External link</a>
  152. <a href="https://blog-583642550167.mit-edu.tech/" target="_blank" class="custom-link">External link</a>
  153. <a href="https://blog-771043779738.mit-edu.site/" target="_blank" class="custom-link">External link</a>
  154. <a href="https://blog-100105053418.mit-edu.top/" target="_blank" class="custom-link">External link</a>
  155. <a href="https://blog-764780568672.usa-gov.top/" target="_blank" class="custom-link">External link</a>
  156. <a href="https://research-940924744854.mit-edu.pp.ua/?url=https://blog-892180845740.mit-edu.top/post/6290835174" target="_blank" class="custom-link">External link</a>
  157. <a href="https://research-360612589967.harvard-edu.pp.ua/?url=https://blog-892180845740.mit-edu.top/post/6290835174" target="_blank" class="custom-link">External link</a>
  158. <a href="https://research-014872176169.stanford-edu.pp.ua/?url=https://blog-892180845740.mit-edu.top/post/6290835174" target="_blank" class="custom-link">External link</a>
  159. <a href="https://research-543029455526.cambridge-edu.pp.ua/?url=https://blog-892180845740.mit-edu.top/post/6290835174" target="_blank" class="custom-link">External link</a>
  160. <a href="https://research-785771582960.berkeley-edu.pp.ua/?url=https://blog-892180845740.mit-edu.top/post/6290835174" target="_blank" class="custom-link">External link</a>
  161. <a href="https://research-177894848241.oxford-edu.pp.ua/?url=https://blog-892180845740.mit-edu.top/post/6290835174" target="_blank" class="custom-link">External link</a>
  162. <a href="https://research-196659337805-edu.wwv.pp.ua/?url=https://blog-892180845740.mit-edu.top/post/6290835174" target="_blank" class="custom-link">External link</a>
  163. <a href="https://research-953259277066-edu.sean.pp.ua/?url=https://blog-892180845740.mit-edu.top/post/6290835174" target="_blank" class="custom-link">External link</a>
  164. <a href="https://research-441265475040-edu.line.pp.ua/?url=https://blog-892180845740.mit-edu.top/post/6290835174" 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-892180845740.mit-edu.top/post/2134579608">
  184.                            <img src="https://x.mit-edu.top/static/images/post/14.jpg" alt="Exploring Neural-Symbolic AI for Decision-Making in Real-Time Strategy Games" title="Exploring Neural-Symbolic AI for Decision-Making in Real-Time Strategy 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-2134579608.mit-edu.top/post/2134579608/" target="_blank">
  190.                                <span class="date">2025-02-05</span>
  191.                                </a>
  192.                            </div>
  193.                            <h2 class="heading"><a href="https://blog-892180845740.mit-edu.top/post/2134579608">Exploring Neural-Symbolic AI for Decision-Making in Real-Time Strategy Games</a></h2>
  194.                            <p class="info">This paper investigates the impact of mobile gaming on attention span and cognitive load, particularly in relation to multitasking behaviors and the consumption of digital media. The research examines how the fast-paced, highly interactive nature of mobile games affects cognitive processes such as sustained attention, task-switching, and mental fatigue. Using experimental methods and cognitive psychology theories, the study analyzes how different types of mobile games, from casual games to action-packed shooters, influence players’ ability to focus on tasks and process information. The paper explores the long-term effects of mobile gaming on attention span and offers recommendations for mitigating negative impacts, especially in the context of educational and professional environments.</p>
  195.                            <a href="https://blog-892180845740.mit-edu.top/post/2134579608" class="post-author d-flex align-items-center">
  196.                                <div class="author-pic">
  197.                                    <img src="https://x.mit-edu.top/static/images/user/14.jpg" alt="Exploring Neural-Symbolic AI for Decision-Making in Real-Time Strategy Games" title="Exploring Neural-Symbolic AI for Decision-Making in Real-Time Strategy Games" class="lazyload">
  198.                                </div>
  199.                                <div class="text">
  200.                                    <strong>Benjamin Powell</strong>
  201.                                    <span>2025-02-05 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-892180845740.mit-edu.top/post/1047938256">
  211.                            <img src="https://x.mit-edu.top/static/images/post/8.jpg" alt="Exploring the Role of Gaze-Based Mechanics in VR Game Design" title="Exploring the Role of Gaze-Based Mechanics in VR Game Design" class="img-fluid lazyload">
  212.                            </a>
  213.                        </div>
  214.                        <div class="content">
  215.                            <div class="post-meta mb-3">
  216.                                <a href="https://blog-1047938256.mit-edu.top/post/1047938256/" target="_blank">
  217.                                <span class="date">2025-02-05</span>
  218.                                </a>
  219.                            </div>
  220.                            <h2 class="heading"><a href="https://blog-892180845740.mit-edu.top/post/1047938256">Exploring the Role of Gaze-Based Mechanics in VR Game Design</a></h2>
  221.                            <p class="info">This study explores the role of user-generated content (UGC) in mobile games, focusing on how player-created game elements, such as levels, skins, and mods, contribute to game longevity and community engagement. The research examines how allowing players to create and share content within a game environment enhances player investment, creativity, and social interaction. Drawing on community-building theories and participatory culture, the paper investigates the challenges and benefits of incorporating UGC features into mobile games, including the technical, social, and legal considerations. The study also evaluates the potential for UGC to drive game evolution and extend the lifespan of mobile games by continually introducing fresh content.</p>
  222.                            <a href="https://blog-892180845740.mit-edu.top/post/1047938256" class="post-author d-flex align-items-center">
  223.                                <div class="author-pic">
  224.                                    <img src="https://x.mit-edu.top/static/images/user/20.jpg" alt="Exploring the Role of Gaze-Based Mechanics in VR Game Design" title="Exploring the Role of Gaze-Based Mechanics in VR Game Design" class="lazyload">
  225.                                </div>
  226.                                <div class="text">
  227.                                    <strong>Jacob Murphy</strong>
  228.                                    <span>2025-02-05 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-892180845740.mit-edu.top/post/8167403952">
  238.                            <img src="https://x.mit-edu.top/static/images/post/18.jpg" alt="The Role of Secure Key Management in Protecting In-Game Purchases" title="The Role of Secure Key Management in Protecting In-Game Purchases" class="img-fluid lazyload">
  239.                            </a>
  240.                        </div>
  241.                        <div class="content">
  242.                            <div class="post-meta mb-3">
  243.                                <a href="https://blog-8167403952.mit-edu.top/post/8167403952/" target="_blank">
  244.                                <span class="date">2025-02-05</span>
  245.                                </a>
  246.                            </div>
  247.                            <h2 class="heading"><a href="https://blog-892180845740.mit-edu.top/post/8167403952">The Role of Secure Key Management in Protecting In-Game Purchases</a></h2>
  248.                            <p class="info">This study investigates how mobile games can encourage physical activity among players, focusing on games that incorporate movement and exercise. It evaluates the effectiveness of these games in promoting health and fitness. </p>
  249.                            <a href="https://blog-892180845740.mit-edu.top/post/8167403952" 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="The Role of Secure Key Management in Protecting In-Game Purchases" title="The Role of Secure Key Management in Protecting In-Game Purchases" class="lazyload">
  252.                                </div>
  253.                                <div class="text">
  254.                                    <strong>Harold Matthews</strong>
  255.                                    <span>2025-02-05 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