CINXE.COM

<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="120"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "waset.org",cType: 'non-interactive',cRay: '91341b440d0c406a',cH: 'zZNoDIit7WkOXtcEnfz02vo3fv4_IfkI8IClGaLGDCU-1739777787-1.2.1.1-sMHJ1V4Rr0I7B14.lvbqZwLufjn2CtrBmj8I.QYtNi6DtngfGaYzA7Lcw6uU9af9',cUPMDTk: "\/profile\/registrations\/listener\/create\/646\/10728?__cf_chl_tk=w_.wYJ0WFZyOQFT4K0n4YclYqLdcOLjAe_DHGsWok2o-1739777787-1.0.1.1-GVIAimbBG_Lp62lwTv4eRUgD1BP.JrANmvp5dgZ3uAc",cFPWv: 'b',cITimeS: '1739777787',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/profile\/registrations\/listener\/create\/646\/10728?__cf_chl_f_tk=w_.wYJ0WFZyOQFT4K0n4YclYqLdcOLjAe_DHGsWok2o-1739777787-1.0.1.1-GVIAimbBG_Lp62lwTv4eRUgD1BP.JrANmvp5dgZ3uAc",md: "WBN_p6ZH1ul70N3RDZXemfJ85N53H1Ec8dlUV6vYTjw-1739777787-1.2.1.1-nErSVbiL5dVAM0M2Rco1ME84ZuOQe84XFrbFa5gx4OjKYW9pTkM1HDVIbkcwB7IDwDv6iXaA49NP_8LQvswv8D1Y76d0m.YE0TNSqpejRhhRG14kBGQvauAGaLoO_FQwIsqEjamhlWvKmUqcEDnE_u_5U.VIlsOd0yMzaMuASx2jlN96h6as_qlrLHQ0osuhW6hzZ6zJ4jUP28p1LNZmlxaboJyH2nU4XtWY5DolAx30r2cijIvTXqZqFspTldGfUjhv13DRl6ADgGW3mAnNYxmu9Q2FGkbfI17NtvpzNC43JMeKD_EpWS7IPyndOtXPSp4hcMepJnRFjQz8tbxfjS_g7Eecu9jEicUDEfAo_1MbzTMK71OYWxzk0lGUC.DvjxqmAMQ.xfJ_1vLI6MKE0ktHHEN2FWEwoMGJYAavo9PDf4sED16.FKmUYPWEwrkX1km.BUSEpd2MVi8A97qFyFZKyJph4Rlv9F0MKFzjg11AjDtHuCbun5FbhWTIhOd8zzqSwb6rrI2wzGLciL4bMGCT9kVFwk.5b4EtOSOheZK1bs_F8zEaWF7vXqj_Me9NNYc5d6cw30nb5pmnjnt8Mx4HVxAj9ImiW4cb2Rk.LOdooXAoDBVOEW5PD45rBOhWYDvryGWzJ2ahL7OZysUnPOejZyRx8udy.QCyD.KzEfAoeXMfAZ3kC8mCKdlX7ifmHT7XZ68ZuETJGJlUNRRno6wOsoQSpo.Mu1oP8B65sWIm8hoNfWnzedoLTIQW4omNxBQvIfkAezgPgCtZK5c5y0CgR5MZxohW6tLvoclgzPT_gSt2awL8ry_a0NEGVcfKiYa62y_5Orgm8huspCTPnp.96h0M3wB.nujIOjxCz23uizDXoILVRwytH_7zaaFifTaQ3DsnZaPQGtBI6e7NySBUPkaeku6CFfmDeHJOiJGHNq8Dqmitz4ykQ9UtZ5I61zhakEZ4tbIIrCipRdtkZuN5Y5oWAj5pY4SKjNo3H.Wp30_khXpTo8YZ1TOfNg_J6ryyJ3wBtSljA0dLhjmQU8ptFmKVOIxBq7qUbcx0rIvx1yqoR2.gUDOxJkdj0bevR4jQppN5Hlowc3OlldFhCulhjTYoxLYmYpDtJanXpOXggYuRTiqG4EgzcRx4kq67_Xbp_0W.s4p_mavOHBqznExUZWTVWE_8XhLamSqAhZTEuwGeEkSHF_vwrzM63P_U9lIertExXyzySY3UMC3Fa9p_lc.sNa9UhF5onuVw2hJQBiPXA.MbP8LlumsvxK1eTqfgVvc2LXMtBNiTjxPhltcGCMpq0DQqdLa3bAAc6BVad0Xv7lz0HA3bjOLK3tCGw907o7QuDxxyQ5eO265DcCL.tMWdpCKwcubAxFQq4h.90a9NCLLnqrHOE3WTbJ5y7I4bxOetOY5vn7.qpLzDFw5jc0TuulpNcV9HVFMdBFOgwooD9S66YzSwvW6lxiM8uQ6C8zfOwp5lolTAa8KKHd.uQ2akwqNYuz.3MgLQyRCUl3TS_pmDPQB34lg10FtlG4qwDGSpObUxx03M9STVdM.B6bSRc6TGva8p1laIAdB80GA_JkXxL1mXxl9cpq1sSv_STDHOiNnFnM6ifYMx.L3aK0Rafc48RRZhGohC93tlek2Q27p3EJ5YEH20E3Vzr3ZDOQjEiuRWFNT2Qddsd_24_p0RStnn_87CAsE95vGeZEo57O0Xm2MJAQM0LuJAjkiIJ2wX_ajQbWNpOwouetieaOsLMCIK2aVF2aQFxAnghOWfrhYShcmSvoXI8IMOZ138hR53KRJjRzUkUOkXWdld87.loneqSQEknwSaLUxXXpx4pZtj0hsfjJ0Jm1Kz8PnrW6i76xYBojBXmvZGPQmUrZIS8aOvjHv.I6T_ED8v_tqcCza_Gji_vsbTtGu6DLugp3pIciI.tgqOvtmfdCo7xKevUSReGZtlBXqGptOuypk5qjpirVX0ZTHxhR0M",mdrd: "CG11TpsrM1CgE34G9Osa9m.WWtxkVcrWEMLvl_B5RFY-1739777787-1.2.1.1-aoC2gxU0.2j27DcxDPfdwF8MPrwqbn6B2ACDTxtZQE6_bOlvZ_ySeUSA8qVeUO0eRWLH13cci9VqJltTWpavnmeIe6PGyjWHEh.1Y6M6oS6O0OQSzsUujH1o8bSGqcsGFN.LTX3r6Zsftj3AimeZ9_Z4U.GkkjO1v9_fX9rW0TExbLdJmKr6qUAymcS01ygHkIeAE.YvoB75i6Rnphc5XTRUVhkxM9IPM5D0KHiufW0128CKSqTz7qffjdrtYGph6WD6KoeCkf5Bz96R6R2ETE_FIs5ubdeGvOa91kTHRBTdkF6BYiDBQTlW.W_g6vCD6FQQMC9uaD0Mdp0GJIm2fGZu8H784KGggi6O9L8poZoD_BB0nBrsUAaTbaqLFkTmY_errBQPrF4hBNMGEhdTHGAxipgazM0a.R8wUt34i7fSqo7AdtbBR778pKdI0_rBFtRgoRWl1rjuCz66_.A7UVmHAPPCWi0KpDcw0n7dqgPb0CVaUl3CjY1JvNAL0CxEeghz_nlB1rlGqck4lx9FYJY62KGo_XkPu_c8Ru1v4.h8NckeXicAn1WJgPornvhMI6iQVeBObDXDmB8myIrAKuDICUzbVOb3bGUBFMfZS9.wYdA8jMaNOJt1jnj_iz6XGvJkip0EBbGdWXEHMXabQh2Oo063czBy0Kcf4z7se3D0rMstcliu7DiZJU4Dgg.z8kIiffR_4BIkE0luuYzdxLa6t5XANdeLSPN5qZxxklahxew4fA2t3XAZTMPbVI06cs4OU3Jhyr2IlDuESBck4xVhMa3wA71totnKZVlE6eySzxZGYZzXQHVTtrHNakBSy2DfIzWSIaJ_2VMnN5c3E5eS7A6legrgrgB2MAFhS_0LwRucpv3sfFy.0WS.v0JYZzFa25X6Dwn90g7gs5LGdMwqOhkrkf.JrDIzgNvWaYj6XTScOm2MejDp7skWF_mMgOs0Dc0y6j3vzmMqUr9wJ4omoATkXb0nJg2Aog57Si2iasaoHbZKWPoOyVXoMK503edCU98HLOFEAWhA5lPEN3kEOn1eoVxBedU5r8Xo9m7DIdbKoV7Fh57qsfwMHWa6nozp_OPxg5EpIFVVkqMniTx9Q6Fd1EPXblJ2fCO9PpAdnKvszQ41otNuMGI8f0PipgjhXiqimFb.4uNQRPyo0EEsEBVsGrFh_Xp05lquSzcl21dSw1keQ3TJ2DId1LzuUiJYvIVPTTcGlyjLmRR.mpBYvQNq6M0efnzvH8YTlAziibZhC_RYWP79ay84Q1eylD3iSrqVAQkj3pV9w2BqqOEvgMR6rDZQu_lHy3QPNFL5l.KuAKU7Ff9zjRmQmrSjkoK8SU7CJ3VJ9w9dWi6VW.1nUGgXzNAS2Vkz0b5daKsijvz5apRhPouSJ17nKaYjMvTx1XD6Ae9JmRTqMeuEtGOlnamw.ypTJBt23N7ocoUXrvPtdZZIKwaxuQ3zcwOV7uGuPWy4XjuxgezQ_Z89F.3VKYNQDcdG.0qQ4tx0zvXWh6zylOWLSVS8B0cOiu4MmkHVANZ9ma5mYQK6G6X66HoAz1xQ9lGleQHsVbWLj4yqI5iOV77vT1Hraf5je8hNY_uE6btLqQ_Sp14JEimJekd9CHU6kWb1nxfdYKkFNlrq1gcJYBq2EaFoUP6LjdpK6.NWzL71MENowhrxeVfcNbKifSUi77TnAzT5hnv9.fcU66wGGDRCVGhKHeVvw080WBAqVYTqKh0VMOhDbgSGxs6tXiqkwtphmxq8ca2j4an4.Z0X14wW8Mr2YbPiWsgXjVXxvwCwDk0qFM0I..92vSbN2gy2XH0l9OI49686yuU74IP7p1nXB9owvsW4N0GkVeheRfCDzSYlZa73vvWiakrGUQ40Bvk3g1IkdqqqA0zGYeLmLyh3v6ccBkp3G1StJXCnmFSskcJefaWHs10eXA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91341b440d0c406a';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/profile\/registrations\/listener\/create\/646\/10728?__cf_chl_rt_tk=w_.wYJ0WFZyOQFT4K0n4YclYqLdcOLjAe_DHGsWok2o-1739777787-1.0.1.1-GVIAimbBG_Lp62lwTv4eRUgD1BP.JrANmvp5dgZ3uAc" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>