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: '9133cc51d8c1eba0',cH: 'aqXL5Z6.t4E7pKcL3ZIFYf0hMFM_76sJBuAdxRpM8U8-1739774553-1.2.1.1-BpphcUAvDKjNqDL.KuPtKujzgzfQumBgdpiq4dGpP2DfflxW7RwS3m1g5.F6Ur7W',cUPMDTk: "\/profile\/registrations\/author\/create\/89225\/9063?__cf_chl_tk=RgMk.DBWrcxJBq.Otsu0uXSvIg2m5FgSh6.2jLAHy54-1739774553-1.0.1.1-YImoykHZ_HinzIyNK0smoQQIRn1ZbbU9TMgGrXYuqcA",cFPWv: 'b',cITimeS: '1739774553',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/profile\/registrations\/author\/create\/89225\/9063?__cf_chl_f_tk=RgMk.DBWrcxJBq.Otsu0uXSvIg2m5FgSh6.2jLAHy54-1739774553-1.0.1.1-YImoykHZ_HinzIyNK0smoQQIRn1ZbbU9TMgGrXYuqcA",md: "jqwrZuiRrd5Cu8vNNysP.3F55yXCv5Qlhd4rFFzZmYY-1739774553-1.2.1.1-ZK6YUTJu7qzmeH3wdtRXzjX68Emozv3WV6HyEs2KvYp6m1XrlhWsk.KP8zXIe_qLBM5XMpENgbuAtMnVy71ncJWMMcAuduifFYOlsBKfF0OGWgMUqA6QGxVDjq3mceMBwDxVwGmVFxqDHUnAhhNkRcvb1WcPmko8L_PCmzeH7nFtTFHW28U2aYEC_fBxKnzMqX7OV8dGqiQx9cyyyHksf8tt4wzM7MxD2rDMG8l9wH9JMBuskFFrjxxT.hT8plbiY87tS8yX0y3I9jhCq3lMGVMsIq38Eu1YKmc_uqZJhMsCKam.4WS4PpaJmlyKPe027YYJzVDT10wElj4o24Qh_D_y.AiGDFI4Gisv3kR_dEMeN6wM7JDqKDVqtsE7sHoPcSz5sV9R.UFPx_z5E284Dvs5ei3_GdmsVA7UEWxaYbeBERQgL8KcZ61E_6eXr4nY7TQADdF4dRwAiEmySxriAIr8ZMpbDMkQ6RLwSm.WR54CfhEP3kkdrdI3VnMRJRwzR5TT.6KZN9XQBH.rtVXYGh2juhZUyw9b0Uscczdjft_qyJC_tXR8GOo3cFsASIDHPza1p1JxrsVVv8ffMx58X6oULB5TdjzFppoT2jvNUpseOhA9y3F3V4ZK08SYqiKI3oNX3stDw9P56m5LNmLuFufmGcJ7778QK2LeBY60VWbMFr2VkxrbbEOBCSH6kQe5747jj8zSMk06eX4CikLZcOfy0JKMApJ5TDOo4sv.UbYC1MtAJLsTSNIz0vLz2Z82.bNb88Tf2_VjY04FM9ymbrTlKLa1Yj1MqRdmS74jDWPxZuxFDfQ72c9bm6y.dac.1oHLPcWavJTkSD7Hjax7fJ.SGtT1jq68hnW8p6lE2RtQm3bZ6W17G1LXt89SKnoujQyn_IqvItYeVLIVk6jlTDMDVertSZwIAAKkJHcov4o43ivqcQZYu3QPqWKDrLWPy83baeopalgkSU3Bjc_IEH..C2gVC62iKUCjtAXEwsRo_7PfM9mQ6QAGugvDDqA6hrMmCI6BoEgeBS7.UgTFU3BgowtdfWpsdZwy2WysFhAZ6Y4jcPR_.Kc9WF457NuL3ZpC5fjYPg_9OAPQ4akjAHhZ7gi3Cv1bny1rDweepG0wKfrXFh_JA.EGEWC_PwNG6pl9Yv4hMMEQ7C9t2ZcYZgA5_vVp0fsDwnXnhdRzV.yWHzc5g9L70oWPuOMWwY4i2F3mVsvlO7kWRMgOVXJWmV95I5t_tBgEqC28Q0oFUPSA.ZHcYkWF3mV5A15A.Zz46AtFX1w.rTzEQkA.u2Qj65_8rgnKsvfheDNnH.KRNGC34lonPriYYom3nEnl6AS10xUhhetofCMD_t_TjrZhinM_fdNQLzuKVMRXi_d_vvVWZG77kqGJ6BEsi6uEHgwdSY8Y1T80FJU6lpWDPGCdzxoZ0elD2roM_QOi7iYTUbqiCj3v.MT2fY3V6gw0FGXf55N5rIvZrmitZTWxTLZvdoaVhF_FYBggDsL3B7fyc5s.PzPvq.fO3LC4BfOYfZC9Py6WGBmFqZje7fmAr19l.98lFKTncbahZzKP4UzOB7jJPiRoF7BhVgnAg8D4LeXprhuErWFjimbCtkS4Q3vC_cFbl5naWTrm4RU6lNlqvq_BSpph0hE4x_oS.iMxbfearTz9rktt3g8jgJ3nbX8LNf4loMcFQGDO.CIfCe9E7qEFlSrRf2fkhjyLTwTXJSoaArNr3jK2pQKIQa3Ie3CCNC1tN5IsMTiUWF8XM431z40Xv6U2C5a591xbChm2dKZ.tYzclPPLxuzwsmJwDmQOfOXmS9wUk8O_DxVufN9bHgBKc4Fu_c64m69sgpaALtf25VEp9ek_JzSlB..35ORSz.3Wr.6GYdIl4ztv0MAl_LM.5LzuTaeYH9FdhGDN9dx9OK6KFek0MojUKgINj8o5RhcZNBx7C9yqoQ5Z5BkVLas",mdrd: "bjlmG2sKZTwjqmTvYlB9qi4EETmGSsPlq80t0MYMcDo-1739774553-1.2.1.1-AnXGMrJZTCnA9Yt79b7zrAPSDjQ04otLifDfdLi.W_.wCv1KsZmeohnebXyAEUh1_f8uMaUTeHwFMFlLdbRJt4MsdNS8hSQsqaTYpCF2rjacuN9NLeLYROrUp4GmlK5Ye8K31_Nwd4lMZ2JU1XVeTzoUlRvOUybxoqCOq2VlEEh.BEVFaRXYzoTBkjSNuy5J5QasGS7_9efAePJp2nDBWGlc2jaIVrppqRnRlwoJoynslHBRR2c48209Q8zxf01J.RWlxHHlUJypCAgJXWhmP7s7kB4.5qcs6IPsUVIo8rNA2F0CQEltmtsKUv86VFMRiXQifebfJLGWIFInbILfS..TZafdUj9ohgsWFj11oSlvmOJF1P19oeN9CmQEVYAR9NjIq2nilPU1ux7hlqZecKSu17Mrdxa53.juZjAAThCeja9boM7vthxVqhJ1a5r47wjeekYY1NmpdVJ59cBzCyYybjogMTcFwfOFC4uWWIg.GG1G3yAxsGdvC0zhOyC.51YCe82chqZoEnJaCetlOwJ8LyBdESzSIU7VFtEHdA2uAmgFlOXs3TkrE6e1zu8WGIrpBoj.2mXUPhxSdPI_b1XDmlZg5bNIOUImGZDNCR640dTWsIBZO5Hh2ALp1H5izH.UOma.ZkEXThUbog1dUFuvR5B4v6d7E8VZITKBfnTFCs0o5gJYku5VG_U7GYZphTC1q1zaGoKHP2fbb4FH3MVmSZ86BBmtcJY2OApV.4TuBkchLMW5rhk3F7Yrycyh8pz1OQ2ZM.FNYYkHaOaU2u8tjOxIXOSudzc5JCUadN0GOjK.Hf8ve9gwPAKFM7vu_DlQFfSXHXosSJ8DI_qBWygEOXhuDVm3yBEn849Oe_H_CVxaIwUZIqPiiZgZ8bBM.qbrEPBngfwS_BNDuhOsXKQ23xRT8ktLwbDfE0QvEkKAZYkBxfXGg_2tzTjfxDf6JHxt1xCf0MmhqY05tpeRgPIDGKpkCD8oBdUYclZRzVE6WOzaS2OHEc7TPQD4gHpLcSm0egkB7FoDmYsJVfb_VhUyCoNYuiZqO7bgYaREVh3WsBcVztA3g3ImOp2rYs3tlkhfKOfO_s0yf3J8hmRAg47KhyaHVkDaeg2bo1wa55S5X5hby8yDZVWeqLFjn9Cq.r.QFOQnoTQdi89j.DCkd7p.uUEuvd6ipsPzjxAB5CzmK8_ex08EQBtDSHNP7KxZ7a97W6MHAnjECco0yqpG9Wmdm8qA8G.6z24fhTmxOzYNlOK1JqMZUiC2_wx1o02Gf1clqrWly0f7rEjAssVKtD0kf_R4zXCGojycadyH6xXt2RQAUWiU5GxM8BA0hXprabGMZqU9Z8jx_RfzU17U9K8tqw_gGAcQAYaPftf1dJd44tJlnzTl0Kr.N1PBIZqhyEAy9kDB.jvlBLYqzXNxYUvSHho3jIDwl5UyfSoyzpCtdcE6835Dk9JwWt2Vuq4kX1JQVCuOzJGaU4H61tjFa4JPhVSfVMo8WqLVC9NwE6JMnQyYKQr2JFNJbeq5bhFNBieMbcvCysdsUreCMWG_ClnM7OA0MeUNxRdmHbWl2y9JM9leA4azHSlDVQanK3BzAazqHoJVkwZwN6GQbOEs_2K_XpsDRnNpLfB.NalRC7.XtltcXnu0aQZ3L2Hm.DwRgkfa5JH1QgEChxo_pGxRNbT7ea0r4lwSOUZkhj7EhbZWE1XmQFGQlr9rqrZXFzpVg8yybw3i6.LnkYUEPIbnO9mmRh4SXan6LqXJ5wQtZLW6s5QE.I4YZZJLlb7DSHj8o62dIYTtwsRAPO9LK7JSZVmPBTwAH9z3A_Xb0Z2Edh9C4qKkfBs6Km7msSMwVmtdfsYq_ZdpfyDCSY4T_le8VjlXKItR3VUg0iS4Rn9D.4XK0glMhrjbqLvcfz0ouQssvHXdQH46MRrfPPsgGrvmjZBvfR3t1vaT_YLxkhL6Wrw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9133cc51d8c1eba0';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\/89225\/9063?__cf_chl_rt_tk=RgMk.DBWrcxJBq.Otsu0uXSvIg2m5FgSh6.2jLAHy54-1739774553-1.0.1.1-YImoykHZ_HinzIyNK0smoQQIRn1ZbbU9TMgGrXYuqcA" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>