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: '9176e9843aa55ff7',cH: 'u2IUE3fLsiBhWY62QfrMaWsvtOsRbJcrXcqsAsb.rcY-1740478295-1.2.1.1-cbLuBFiJSjwmdEo0eaRB_TriaLXikummBO88zfG_jBeZv8q81e4zlqf_vrmp5SVU',cUPMDTk: "\/profile\/registrations\/author\/create\/2023\/9207?__cf_chl_tk=ccBVszmH.cSKZcfb5o5bmRsYeaDU.ibn_j6NngDfebo-1740478295-1.0.1.1-Cl42n0xyTHSQp.vk_FPYbO.F8.mlHOAKeVuStscAsB8",cFPWv: 'b',cITimeS: '1740478295',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/profile\/registrations\/author\/create\/2023\/9207?__cf_chl_f_tk=ccBVszmH.cSKZcfb5o5bmRsYeaDU.ibn_j6NngDfebo-1740478295-1.0.1.1-Cl42n0xyTHSQp.vk_FPYbO.F8.mlHOAKeVuStscAsB8",md: "waRfLIrcNWVaKFJ.gKqYA7_ya2YDjnpzpJUU0XIRS7s-1740478295-1.2.1.1-Y4aYO9Yd3Gr.BoNfivqp2Vdv5JXOOsJdgz2O1WBb_ZHN7bOPp1nK.OwpSaN9bJbYCynuYJFE5wmDZ7BXMfvuvaOHcYURigMRlvSQQQ5V6lCSU4xLa3Dw76TxwDJTgffAlr.J1bAFmcB4.7NYx2zZo806W8FMZm_AZeetyoN8cfMMNbZB33cwwgQQEtcZK2T_SSgauce2BK.9Fl574L4xy4cgDqgI6LaD3Il7a7z6iy6xX6bOe4kRolnZMJ6wr8FaTx22MixdyBoM39jxzhnLPExQh3SaVOnCa1TJff4EQ2xAirSdehp1_6IIDMVRrfWgIKgcZvYOWcqOYL8_3mpzglUV6GyFtkjsEtnG6LAACcF4SQkkr53FZsxQz.82EWLivqznMij7Aelry2FDF.0UO36okVvAhElNr7nwJ8oAdpc_NUujOPC5qO7YNN4hoIc7axh4UiePMwTYtWxQXKhwPlbpZKPQ7gGjEiiLnFq7oEOsMUKvwMMIgUCX7TvOmYmsYR3U3fEpV2AC3vPvwjvWFD28l_1bmo5STwJMJ3EvO5dhNbEn4sMIKnmNLQvjMkTbEwla5m66CJj2b_cUCB2kX7jyoGtgjQe1I0UjaFF_7RSvHx4c1WTwGdzm_hXF3Cqjowl.Q0jjFxQye8VkIk5pYHQNIv8dC1qicf7gKQGAVtKORHG0ITIbYngXqiIufKK2e4lZCX456qWIPJKtKILyth_mj3CqpLhEdpWJK_gYPAJgr._uwesO6nUaME4tnnMzHkaNTkZL1XKFMpPQnVbqgDaHlkhyVuVloyQ6sbiSYCfg3iGj2EYNZPlZj0JUWlVkNt4SenZAB3i68VQzOUJVLsv5CrEr1d.ESru6QXc1g6Gw_2v9bX3mO5AX_MWxlef2CuvIp5UuE5VMRMlvTQpp0gPKGVF50qw6wv.Y8MLcDasC0Jj3zqlS47X5EU4lpoSryMPGP2euMSfXy6qVrs8owHYnXJIQstK.2m..DS2H4VuQL5IRkldqTjbYYSHaZ39.gBIZK8hYzyTMIeHv5hTJZO2XqcjOBi6FfOXVU1fkKqQGiDBIjkvih.FSU28Oq5RBR2aWxUUaa9mZArfcU5Kk6rWBGk73jf.bfbPrBWtrWN7qRc6.7S0YBQkw5KGi24VVpv8WVIS57eFYRYFAPZJ5SRpAGP15BYNoclxS1sEjzV1T9Azd8ZyhG6pb5JIPCxCoyYwj5hpeNGTfvPS57YyiH3R3rybUtvk4sCOqZCKKhXhSLImnxAwZB1YGmmY2Mc.vsA27pQMTlvByRMkmf2dEONnM5cZeTzTmoCeY3cAFsdJ1Q5XKcEyiRYrYs9u8npPhIZVpCSXAPvY.NaSHGI9aSOklz5RO8mtbHiEV1SK1x7Y8nu93Ai0LGD1sD1EHRQ0iOlJbxwT8F5JGLd4kqiEAcBekIutZ__gjLOEnMNHiDV4nDSFZ7.F8hYRUyXPTA3hOa9h7TlawbrUKqnp3nWQNxTDgSiZxILE5kcVu0Sm463XPzcVoUWOCThXhvhhd.dAdgecU.1UUjtKTOSmD3vhYd6ZY6PrsXHgsOfjLXfsng0xjeU6.F2mk_2ljXkLjT1c_U8ajwxBp2IAiSm2WHdiaFOPvqUyZHCkuwztw7padvBzPVicLOPAU0S7KJrUlrZfy6QfiGE.dJ7UGMbmL6BnxfwH9ikzeXfFE9cpGOln5sK1btTicDQVCyB91JcN6ufgr4E2hx_H9qwi6Y6lFMrl7VPlB33pka.sbcaHRsJIjnrv7jIq7CO74bcPHN4TOYRRcg4.AglXLi.7kmfLGDtWIZlPeYRazq9mCslmyOiTaDKCpeXok42QtFi4XJDjA1IWZO7eddBc_.yqiwPVnrSZOPMq4h_YCu.s0xzd4HaXrziMNvr99lxch5_hT12rI.heNs3gQAojMK_xmprZ5TB2t.r0tQoNMdTu.e9oBLc6s76k",mdrd: "6YO54936TIJpJ3xMvyqzZGhQobENMx8TMosWdW.1NmQ-1740478295-1.2.1.1-OoFY6IthVfYwGK7d.TJMPBlqoImNelX2eV89wfK.RUXEmKUekZSYredWmqoRfTWE32iwbGj5a..qqPS3lSZRQdRIKlpvAUZrmBvIFsIwScJPaF3.WLDy5IhRhYAQHextL.vrZ8PkczcGg15IZblt6rYWEk4IhFYwjzt6FtXmFsdETAh.pEUrhJdkf8Py9ZQ2V5aK2S47KGnUmg8MarFvwqV35oSfAOuSVwmZFUszz0MrsAGPKVofH8YbI0AXP79u.j4cfn9LS5fhqtPS8XGJ_1WPE3vbc4l3GtB8WdpqmIW1hwnRn56iHIskF62PCa2qz86gDKcNiSeuQN31BaV3j5Smzyv0wQFjV2YGlE7jZ2BL41mK18Zx8qAdxCCK6tylFxhlu336e0xdGvePFbJY0Z7asG9.YzL7.jeo_g8wzIgZjtL1cTd1BtvIFttB2xKevKAEZr3rQQa8nr.tDA9romU3xy9DV37WUgMrEo2MVP6EbYG9RoZ4W8hfX9i59rbjQ67pnKjR.PMwAUG6WfFREBZX8kbyWEEOoEKRBsNkr91G0VI.AgIzZee4Xb_hNn7cz.W5NgU0HiEqvy7h7WhwkPo4rA2UwW_cmq3pgDZ43bNaJWcbK2g4pcBJgS_yC7z4pdao_rOK1aeIwLt_mW4wUvM20SKCAaLrUMBtw1v4EHSt_vW.r5u3ZiCNjrbx2GBiSCZ6ZL4db3iL8Rn4vq0CBmh13b0bUSwdi_CJXTHQa2tomp0QpUNXtry.uJNydnO1Ewcp8XolNvv5wxVp7KdweiiqQlcEmqEPTwNzgMaqnSNgZngAZFTLPV86Z4bGX5Ji7tFavkYX_3k9m4VAVJXJ7E55GZWElnlJbAThsXPdpKNZH9SdzHCe8SUOT9gjcbWafzbBMFrWGbZ1Q0Th8K36AtbBRXLrsDJ.31rdhFy3rnWvWbEAJMQVWzCkYsLCAj5Z_GJFVLNrRJq_gz1Q5NRePaXGKp85G3K6kPLNzcHp2xKmqi6iUXQw5p59CAURQs1Vdd214RdI5FGNRWRp.QUWgxEawNmi7kggYb.ChGbZeKNpqnoYlIDpbqgY6Xy.dKktplZi1o.m9obqu_qBI2X3eDgNFUzrzQYWhx7fsv1HXbpCZVRqygIWdCDtLK9DJmOageHhG5dMiemcu2Tub9bALgTeSuLcn5JuxXuXb0CXBk6JqXNqsRVdN2gv76G0LwM5hgI_nLzF7fGVglVcxcwr.sgL.7_cLJVqrRmgms0uukR7D54MYdf9uVj3JlNpDEnJZ6EHZ8SfKV4oJUAIxAAz2ivfLVRI7q4nQaYdXWwVxyXJOBN2ttH8qo1b3a4CeN8_ojUitGqfGUZRyK1xG0r3NLlUNomj7yq.P90g1SzRLLVPXeV.BprVv1RbWFnaLstXyxKOlHJtAvRi1ctEIe3rXNAMvF9wv_zCk8BCHPiAI.lhX7FT7Neo83BAR2ULgAQbw_o4WbKWy31WIGy9_85Hxp4_hCqXQmPLi1jjkTzMbtXSqJ9G9Rw9UHElsmR.ERomDDWGRZife5eBm.7DbCCBTmi5zTB2bppNFs6xOrbFfWVel5iEUNlMxQikzzfWmHRGK0c7MO2wCKjf18860jLydFLft1uss9SXkkXEGxFeZK2umSx0qCkP3ldSck2xwNI91R_cBFUxJTBGqJtlOt05NJiPl.ER.TcXJhGX5318RZ9duK4io34khhuGsG8NtS8bkX.b3dREaTnVN.KL6zdocGpcNGkSoWss3EvUAfl2BRnD2K.DrKn2REZAT4qujll209hqZ0biz5QG8a3nxyxIWau1X9ln9m_k6BcpwOdJhIs1pjUPUQOKbk_AvBczm6dAbeyoieVVUvd6XvN70rlU5hPzeoLZN7c1ePoMMafV42J2zcXy91l2OiBn4aSirVB15OQpF5BSpoMERGoobf.4BFQ07H3sv3Z10UQcoJDRb6s"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9176e9843aa55ff7';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\/author\/create\/2023\/9207?__cf_chl_rt_tk=ccBVszmH.cSKZcfb5o5bmRsYeaDU.ibn_j6NngDfebo-1740478295-1.0.1.1-Cl42n0xyTHSQp.vk_FPYbO.F8.mlHOAKeVuStscAsB8" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>