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: "publications.waset.org",cType: 'non-interactive',cRay: '9134bc766f9c820d',cH: 'wKHgSJTP4ZcOqjJVoQxVmQBPi6G3FsWg8kukMyi.P08-1739784390-1.2.1.1-5TCW0o5iCaRhU4YAzt3OB1IZ2_DRnijibvRbbxQO4EURE3Al2mn5N0oM3BiMTTuO',cUPMDTk: "\/search?q=Tu%C4%9Frul%20Varol&__cf_chl_tk=BILaHOVqjo4p5Kczv2UYfcsyCom2DYK4.FE70upSeMk-1739784390-1.0.1.1-5OHpYE1XuMRwQMZIDZEzC1VS4i3n7F2ZVpyfXVMz9Z8",cFPWv: 'b',cITimeS: '1739784390',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/search?q=Tu%C4%9Frul%20Varol&__cf_chl_f_tk=BILaHOVqjo4p5Kczv2UYfcsyCom2DYK4.FE70upSeMk-1739784390-1.0.1.1-5OHpYE1XuMRwQMZIDZEzC1VS4i3n7F2ZVpyfXVMz9Z8",md: "yjmM9qp8c2RtaAOTKy6SfG2raLSyN4DC8wu_0KzNsHU-1739784390-1.2.1.1-Iz1cNECwnJleslApwVRsdjJgQluREDyvaHacpe5fTE5FrVOyb8AKFRgyRLqE8qVewJcTRymYGSEC7BgQ1Lb5vj.S8EbxIGt7_WUGdplrJMThsj7yjK336vwiFv1pcAyudGD_OYjrpnLI8wULb4xjUc_xnkZ7wdbZffq5DvWNkKU.c0uxS7VAjXlX_jILOABTZqeQ6AxLdpYx5umneWmULQCvs_86a0P3iv25Y5Tdvxkgz0HuxJU4YzRAwpo4dor8kWdVwQiq7sQJ61Qk.Sim9_fZKwN6MbxrjlRofhWCjF6nlFeqZNjbk0ExDB_YtNkitKTciGJVm6yXs0_yHjslXpW3JiByERYoYpYmqqmmPUHTge9ex5uO5l_kHiiK31HwqZ2zwA7LxCH2SH2Nzlc5a54ZIA_xDjGliEh2d8lddu6Q6qAVfztmJ9gc4JHKzU.GbpEnGqQZnhL8tlO_D.w_X51XwPQ.uOOVMp712qFzuXfttROeSvprVVHYDYPGTxGIYwPeLUyX0nGqcFIpdCkbWyxLLAdTL7rWYFJ1zPN9a3JAj2Cp7Hu1wvpCWPYACLsx54WCBRafRb07Aqs7X1HLmeuBqJ7KmgqRLbEcE2Hyk8bLYxFFO7lE3KqsDnWQ7_SEX6OxWxq1BOjjV.LYkwEwkemAVsfQ5wTgpK0yQ32VMuJlWS3h5wsJt0iKC1TpbZWZtZrHufwo_L2ChlClPsccIFZTQh137DSS.0nN7TVGvW10MaIGspbVRHY4WKTjfoIxKCqUzoKw0MzHx7QXr0zn4UX6uOXveLtt71lCkGFrHKlTu3kUuH_FoWuhoQU2LoPl0AKBHD7YUQmYmU19etG68Tg_BTb_7EcJPQrMALxuDKAUuKKoHOyYBCGWnL6YTURu7sil4R7d_ROb4VUkB8Xz3QZWRJ8PU7yi.lv1p46a_UvIdnrc_9cQ1H6D1eCe5zPfFki1zjfuyxBznFd4CM6SMGuRnC1fT8u15LyyxMZonR655ktwasmf2782jCSUS0u4ZFzDerfKwsbdvL.eKSRrn5Yglfa.agOXON8.XrHn5lq5nr2ZRunvYUMM6KjYFU8_wdU8ar1.DF2tUgMxPTYgbbYpaa1RvwOW1pD0UFlNwgxwk2Mbq6S18tx69WeNPwB_h1qtp_g4xIg9IKmNNNd5vlFdXFRFO_5.NJit20im5JIybEebFR8hbZ7Yb7pvRJ2rRK63EdAb0nHGej99CJFnQlmmWJy3qZYk5TLwWMh9QEKPTRoVDNHCG5_C7hQXStBuIk5RDSFiuvQ3jlen5c6p.1k5VvYFCXvNDu5fmn9zD1x2_3_yls1WPVHoq.aOW3scqbJxzWWXZlY1XQO8PrfShBj3l4h7mVmC8wtimwevgnnDQ2BwVaoEvj2kbNop_59q_sYxwAIl_ztlm5VGSTLY9PeWA5QNZ8f5.CSEtO5wAvQi3.NzSve7x3gTFDnuG3s616QY.j87_s5KUTWrEWTGcpolAnRBRpf8nAkm3KkmCFNsWYaMHGkx1dYoKxViHO2Y1U8CTN5kC8aLA0EV5h56kVdWu5eMhLfUOcjCMdowZZK1WUuUs00ATS_RwrJIcRMhZq5IHvpLgdpUQ5uZJE7cy2SnHMWGeCm.uvcm0ldXH4nm6sZ7QQDSeLS2r.6wdNbh00lHcDj6kYBh2CGWJxFxNqwLd4fRaxdy9OVxEvbLpL9XT6Iw1lg1ylWyDFWSWsUD9hw22v9R_6jMXcaYbMgr7EN4o7d920gZrQ1psedMQ9te2n0191uGiQkMtDJzhesk36Ee_1YXO8Rk20_Cvgv1hmEYzn70P5hRmNOwyQFvO5KW9BcKiYnh3CHZ4eGGv8B_eztZxIu8O.QJFVg.TODo60vrpqbFxyYvkKlY9SjbKquwV6lmWX0Pn_tzyc3no2DVeRBxx8YB25IApVngf0oWFg",mdrd: "1Ta4syHmC57nq9RRmY76a5N1JR4cYOAWzi.6qrmM9Io-1739784390-1.2.1.1-Pv3z9mZzM5lyp19cvLrRioQr.c1SwE4l6CVnwX361SqfxCGzzLZ1koxJri67YQnxmC_LBVb5W9qQHxSS2Q_qXOQDVGx9sS0j91rT_.hdrBPAoiAFyDKB7vBdo2bfhNcRSpPBeDlK79vtSl.c5QqG1z2nMQNJiyhh5hu7QMdKoM476BjRbO8qSHjFRJ93fcaBX4IozE3XS19YHboCUuynign_U7fALd0KhhMfEGAGDtRhWvb.B0JzZ7SIcFG8kU.eUf1MHr5OHPQGJb_u4WEg7XTiGGdeXQJpOPO3WxkzM17Dtx4427giC4EWVQVQelyIwG6wrs_iS7nhZvV_Wx6BscaU9yAXwoeKBBWCHjP.YDnG8MLOlc2QKcxfQXBlcBu8JgLcSp_FvnW8v2r.mqIfHBZkE3.0.06lKSAE6RXxxAuPPkbn65Zsb17t0TVWwycCY_qbOf63qVmSTm20PuiFlqoEpdT5O.FVCu.sJvZ76q8k9P2u0w6eMhvOXM9gvqABXk7aOIzfCsxKuY8dbF7gQKz1JAFfQz0w6e72ddXtPKQf6a4RcXNrtZgVHLbXA6sO3E1S4prW7mKS_P6uaxJMesCgxQVEx6kQNZYZqdEVlC6_rLT2PxdHxInPtnqDmkVwkuL6NqDWiCe_RT3nTPrqviXWQpp7c46TrsZsyi_u17EcPjljDl4Qbpwhya9E_bFEhD2kocEfNfvGwZtnIrBiZoLsH.10v.SJNbuFuZzelDyOePkilEPrJ2452_uVWXUoHSUsqXWHnC2b6s8jBmEeEKpnAXIbJqc1tEs8cKk5K8cfNaNM6.fZHERLzGq9tl1AmLaC5LdcgT.x9F4_UsRqGR1rwDFBPJ1oTc4D0vHmzPk3upbDjTD76t5VYu.7fcM_09gcAFVJg2vI8orGAPsG5fxWBnT608k3EXAjybufMb70Y1xDqlWMG6zeGvQ4sHhd8PU4Nwar3RyV_XavYK9vmhPAc_xSPzKtG4U.nw17xR1WI1pPHdfjlip0YSyUi2rUQUX4EU5X5NyINfHikXBNKzMYeEHiAyIg3zBXYKVaQa3htrd2a.stF1BPdoRxxQVsxRgRh7T4Z5mH_fYhPenRm8WnyDI2MlSsz4VhYNcdUurD3tdJ8J1alQnlBLKRFx8A0Is_f01uwr7IaqV2N.ElZgSp9N9Ypc5x75qcG.jxjGKZ5DIGSwyAGlHtnP9.8rULt2VAvXa61jbgg_tIyEhyobqk9ennnc3R9XyItd1weSlD914meMKnaFlJKntWGcZVpLp6G44KvIoTNTvC_Xwk7f8t7nBjJaIRgWVD1FevJRmbJktwQFTLAxrmSqYp4kP4gi6k3fNu5B5PYBY7EsbVf2jq4Rcw_OeWJcN4IJoRGybx3qVArqskwxXGQeiOB5BEhik7TfeeIBrRUnZSJygFhwUGuo3jL68C9t6CHTg73WX6zfxGqN2VzVpBaCurIH7zcbZcOFVdgclEArSNscdQ2uB4EX2Vs02mHwV2vJ17dg1gGOBNkazjMlomi4XqznttKeqcyNJ36F74kLCY4wAL7mExogriMipIZ0y2ok0psNDQRHgWjHN3S9oM0XobgOyt2A9RkHLaFkKQKqDw_bcf6f96vpellx1N3BuF1FLM4rItvU_xvquZbZ_9sCGAk8OOERqKRNSoan1SN_yUAfiMDUGPt_xpoadhyG4iAuIGnXst5tMcm2UVipfj.wGeY_X.TKK1TEDkJTnqcoIm6P6q5DW0HGOkH.np1TVfwZYpiv0uvZ6JAuDNCnVMRq7KGwFGKgkTNCVOhVEwZeDuBaUl6RnLu6q6ur5TxXFaIuRAtMsx9hkRLn.zMyMsl3EbYNOvR_kNlbhbmiG73tEhhqS23aOenep91puvEgFR9sMNsXEjKlqvXoCC1vnWzpOliUzxdmZjQCeLhbEBpqXRiRP06aK6B3FAHsAbRxTVlCb1diaCBNsBCWcNFRIRSwto0fk3"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9134bc766f9c820d';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, "\/search?q=Tu%C4%9Frul%20Varol&__cf_chl_rt_tk=BILaHOVqjo4p5Kczv2UYfcsyCom2DYK4.FE70upSeMk-1739784390-1.0.1.1-5OHpYE1XuMRwQMZIDZEzC1VS4i3n7F2ZVpyfXVMz9Z8" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>