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: '91788719f932602f',cH: 'GGzXmro7sibMqGTJTbJ7HHo3T1XziLYbqYPFVFIjhWo-1740495236-1.2.1.1-fV_Oud2Tq81eux6eb7K3MVwGpZg0nb39f8o9H7.9LTNlJsxfs6JobuV9oIWeWBz5',cUPMDTk: "\/search?q=Kutut&__cf_chl_tk=aiFr5mpNRRNRBUxTAq.PdD81AkNjshMEuMEmEIzud3A-1740495236-1.0.1.1-3EKTbLh3idY1KkyXeZneHRf8jG_mfdeupnAwawhef1w",cFPWv: 'b',cITimeS: '1740495236',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/search?q=Kutut&__cf_chl_f_tk=aiFr5mpNRRNRBUxTAq.PdD81AkNjshMEuMEmEIzud3A-1740495236-1.0.1.1-3EKTbLh3idY1KkyXeZneHRf8jG_mfdeupnAwawhef1w",md: "KcpuSAMJ_YlHaxz9MzzICdpdIx71Ya4A5cglQkTsXow-1740495236-1.2.1.1-xUtZAgCpaik9MaglFwfYtwX1Anjjm1HPh2_uMNsUqTs_d1tcoaXCknvsZvbnm_XZJuWiPuPjKgEhI8kvjjwrUBuVQimO1bq6J4cXugMI.Gykvvh1ygdZ_5oXECm0zkONo.k1_ZmhSSmRL_n3bTJjMItyPWD9qH9TV.vsuoL86E8QqIA0adpZV3xOTmrnXAG.wnQ7yumQ9v7mDJrxwtmTD5ouMjO9fUnERFPKSyLplr_AW16NFXCGTei9sLtfOU5AKcM4Ixs5QEMPT7T5hETLpy6LXVVrLmmsyiQKw.cLP4aL1p2u8p93oFzNZnLNLhSfybpZJhluZpfzCNqDpUycyFIa0AuDbnDV7jGlIAUIyNKY0trQj0TfM2mAIrTtFWRIvuemXvPrPiCY1USUlatehEgs.LpZowPPJtvSuk_SyGMoKMXZVynPQt3dz4ROJAO6AI1s1dy_dP.9tfz1fGO2psMVFFbZDtDVSUBfQjVcEv7vtDu3iWz4MJXA2fMWFho443yNSpam19X6TdjygqXatnaWhVIs2189SANhJd1aexYnR59d__5QpKRZmuykuGDP0dBexzx18Gv759nTONkuQzsy5Lo97IKMUEssBcnDjvq3KWvC3s3tgegDfdbJ6trrQt3RNg5mZW0OJj.uuramEXMzJ08U9hXOj.oh.bbMV6mtbWH6wcr.rXm8iwh3YNxS6A1Z8h_zf8ybQuWuLhPK39Z3asaR1.npcROb8hTYuNw3Zemc8yMAyWqBncPoTTcJ_f3hr3VWhTDZGP5uIeGXHItunjrnSsddcC1iqrowj_FpwaUDW.k37xUSXh0eDWRv6CSmvcUHsrvEfQ3jRf1.g8LYVExn5LwBiDAcQx.tmKZHSF.o0EQXAMlh4f.qUHSJ5zcp.xbWy_HJ3XtP4CJVyIF3ISsQv5MlXJcrVBx_YzNvbilGK3XWoiI3zqEq4qjloOHRr7i7CgrVJluhjD2YzizWyM_UmHxKrBm9iO2mGL_88rlc1a4RVLxnWDf13mt4yAgrb3wuehedqkp4zVym9imHv9libWU75GJnB9_6P6fBm.GW1jZ5wSQZr3UKbWAtg3a7AaC29qyuYAx1y8PY9YCmKurG0V2dawZIf3U0mpfDMrukJqNqt9RJ14wzSGIfAJ2waqep8pTbuBqrEI02CemRzI78YtjSwlGROLCvTaQwY2um30a6MICYGmxiwlEycq5erfkNmHbdq9Rw5RjPlvRpt_.2kCNa4JyyT_qhWRr1oy55uKjb2MXQEXhJ5EfendJut__8HB76Nt21BBez9IKjF4gJlFfIIDe0nLIntxorDqqSE6rhd1CgQSKhqf0rkNawxNXMIG7HU6lseoJsFGl8LBxVC1a6gPmaJFqfcYlTIsZcLjc.aG2aqoMijSoWUonplEQARf2z_D8e_3qvwJEFGnwFvqf8.TVruZnCQ1Y1ynwTjGsNe7ouelXWZIpoh8Kii6ls.pu13uMqS.aX7qsLx5EthUbeSwG3ta83Hcn0VSrEF47ghvD.Ne5KsiOSyv8ry18cNdwcKkKUuZyft3EcZw09OJlYK7VE95Kb5BlJTmyZ9730qGPLI0W805Jnh3qlakp5mAkUezFC.PCCTYO4bItWhV8XwJnaVsN7IlqbYoXJWrItqtsUt1zkd2yWcNK9Fy6PwG50C4V0Vbo5guntCF4UYj8Kf7KIfA4PNMDohT.jPFvLY3J3f.s.m7GTI8GRZxrOLT99h_vjOr9G6SVsjGeDIzQJRywSsdsta9dSedI8MS50pfuchAayC1KkbrkVbiYSrgkhrCrGAAFdtvJTbXo1OEUKv6Hkfx_BHeJSaka3nBZTCv.n068tBX3OIBzII_7OVwowrnx61RStmKqs.5gkl2H.15nAMQQUOW0",mdrd: "bmf8Sol4Zhp5yZLeYgSWAzdO8QlLy0nTPh80PXtklig-1740495236-1.2.1.1-kCfOBtfpdkUkm1fvnFY_vHGgnWaTYXVwW29d.5NRECBWV2RTA2WJicZ5uC1qh_8YbKkfoD9lNg_wWktrO..3MxP3gYjDzzoguwZ927BjiV6.6uJ1OBwQEZc3MBM8x6Uu1Os0coI3TwDzLs84ZqOGVJTYz66CPu5OcRn9EzprP1wfUeK4j2Ukqpd3V8yA2WqCP40lJAiL1oEsj4kGkFBfuTAZDJxhsIwQiRe8HHhmhmqEkSou1uiBEapxzPe63spCI_xpnkjM2esBrP.2KtfNThaE.CskeNghViwYebkI0WDYZq9ylszbWbVvnOgNTRpjHEJmsfFo6ZfrUxL1g2RBHt.deC65AfLcl2qzdRHzaIr8NZ8Ybxit4vlrwwuTqBORPU0LkNcgTXz.1lUb2p0kqPSOTmZkk6AXQeyWPvhNrOWB2LQNCgNViXgIiLB9a0acVd7YCEpMx54R_HeAkzkeb2im_nYEwz88Fp.UFzlLVnsgkPVq23bdxwgndU4Ykm43X_IxOJ0elMiOzH7CwjRxhZketWkEZHX1kDnI_nYdHUdt4OUkgwfcF_IrVq_M3_lGCv.JXIxug4b0dYk6oArMbPiEclbd8q_k91Cw5_fIFh1l_Ymhu_YzZK7A4_N2AtoiTQZXvmA2eFxyqYaZ6QuVtbPbwXzxVIryfrPtcB1antJuaOpcFbrYWKa8CEEyNEsPCB.A9UIgOp_.oq0q8DENSPg1jSJunx5D7UtELcKPjQGceFyYGaLDIWuObI10AJ0z1_H9h0xDzHyXkCUvHCzkqfqAfBjSa52PD_IyH1VhAMq_s.0FioI9F1pmcnuVn3uE7zOG8Yb73aXy2SqbJQVZCW7ByEDWXIwIiKfe_h5dDLSG4h0FH4ynXRNQLkPuSq852akfLqYWmLktP5w1ZJUQ4z5yNGSdTDucfaKgS02CqEj.UX1qXX6Sh2EugfBuniQMeoFk5.h6Y7P2xs1wFG2bJz.6KjAxnaV.ZOwmJr6qkbAJl7Hde4Jklr701ORUHpstmfuSJOsE2aHN4ajeozFA2QfaQLiIHOF3OCx.Zetb9oJxZxJLAyAIPwbvH99l0odG6Ggk05.xGxlN8IDelHuXz4lJbeVDqqoQmrbXs.45pKdMieit0hlcaQ1tqmPiNzFa0fpMP6R7qtUZe8fRSed0QU0TmeX20NcwUrfhbN3UNFIhesGvpVogiHXum3pGJJAPab7VP79mWRqhuYv3bZowzc.cve4HRWUj3XxBxIPAzHsEbtckKfVxgHC96BK1WOOvAF9P.c5PPD3sr0GPoAjdT16m8iQAu9gaFJORTEmHSLT8EQJkvybzxrRvzzFsMdPUwO5OGtxdXcp3EdpxZ.gbFRoqFrQT6_DSrU0bUDqYbEWCVQ0m_5D1SCFnYaZobbdqU9v4L81jzZ3ekmTWYW.ELdFI8sdHNWSHoqFlIHZTEcPSYpn6tSuXkFeZojUlOPQ_C6ukOmlCe7Hr0FkZCHou5jPKYBi1FTpGKnkxmcXfYJFgEZGNKyz9VfFqRgEczda12Vg83z5L_3Or7TR_7ww_4Ct2MK3ZqmZgcypLD5AtjusmEq3oDkDa8aRarzZXxguxc.hZgoGS_.eGemlf6mwqbb.2ugFTbrJLX9nqz7HiCvfUgEZFUAir90cXWf8ntKmSfJOAouzwBcuJbuyorduB9gavUWvMPAmRtQyMNkfm47VvxbjG.1vpWX1uRLIBSqe5We.S3zMYCsv3mRDQ3_TbkMveeJlW4nd_u_vQCBJXfDW9ZM2cRWSTpKb4.y.gAqgVqBxZPrPDjFVqzuqqPUAldh6PocPAJ9cv9y06S8jvplMOstcEHt.8vKE1iJDv47XhTN31K_WBPLB0sKPbIEBG9JsdR4jroYTD7p9_nj_iI2BWQbpAvc38OYnvY25DhlQ0AvIMO71MiQuxYOxwOWWIef59CDQCduycWxLJ8P1c0jVANM6MQyAIYRF56k2EFxms"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91788719f932602f';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=Kutut&__cf_chl_rt_tk=aiFr5mpNRRNRBUxTAq.PdD81AkNjshMEuMEmEIzud3A-1740495236-1.0.1.1-3EKTbLh3idY1KkyXeZneHRf8jG_mfdeupnAwawhef1w" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>