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: '913566e1aa845f4b',cH: 'sNwyzxQ_4Brzu1lOsLWO1ucx2rv8TPwiKf1NlIFbXZQ-1739791370-1.2.1.1-iDj0ZKKpB7r68tx8d.zcMZzC1mI.ihT8LBejwd7Ft39eEWitQwnDOu7cIbcphD45',cUPMDTk: "\/abstracts\/search?q=humanity&__cf_chl_tk=PuVJQhzrVkbIiUH6NRfnYLPIGSMPrvV4rmEiKgcXUzM-1739791370-1.0.1.1-jp4mXTzjWHeyloKvVmCU71tXVxEUmHXdR91G1YhpqwY",cFPWv: 'b',cITimeS: '1739791370',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=humanity&__cf_chl_f_tk=PuVJQhzrVkbIiUH6NRfnYLPIGSMPrvV4rmEiKgcXUzM-1739791370-1.0.1.1-jp4mXTzjWHeyloKvVmCU71tXVxEUmHXdR91G1YhpqwY",md: "CNa2bcp1Ne_sY19DsayUWIpvjCHL3hbGwnuSnZJJ6Gs-1739791370-1.2.1.1-8ZW31h1cN2xjsk8eT4gqbPuGKJc3mHTpIdv43ueXQBeUWx.9kg2L3ViKRzkilrSdmiSJ8LVqLCVk4tBvNdX4o9jX8lSctNbtQOF4o9VxIRvVhUxiSALA6oq1GEPyAOlBu9NSQlG3eDuve9j7DJmhMQE9jIG7CmAoHNZqGzFooX2PHMnvFT8PPfyzkAfE0UQC5TVXYfSR7FvJgEm20HdnD_U0zn1MjytyUQwfnndPc5E0biL5wxBLHRJQjeLAJfEdjpBpRe6HJD63djON67A7VOXElGHuSTlSJMFKoItj.Ak.bmKfDCZqb4jY.7LTbrJj3lzHQGOvEWapAg3Tj_Wpp7pWdW1JcCGPmifROtUfmeRLU8dhHom4WQQWbjQdsG3D6ZXsH6ra4yzto0JgvvJNddLQtCrEB39ByGda0RxQDliNYXWr6Z8f0k3zTWWt.2Iah4Dc3wyZkNODibD2QjDBYqk7m9se9XFhyLEnAscG7Ltd.zx7X1XRHrx.wyCmZH1tXzoJ3jrY1FcSawLzlgnQ0N2Cpx60KkrwtkkT91bu.2bwc2Gu38ILJdUQb_co.o1nQxXlzdJVX7GfREQK_ePv4sBkaE.X7kPMpYA_CgwDqnOMspu.63o8tf.pkY7M0OBzBqv3_NKzqWJxgfNwvAe4.N8qKFMeM1mm_.jPM55b3tTz10Pa69oshXOYwu_874EsI0IJJHstKWrUpsr.Ho86rfDpOWjGdihkDmxsRKZEtKCZGWzSIwWoTzlONhs9Km3_uBMcH1ZPe6txPbwRGQapQebV6zNBodmfcNDCIPVhVeKumOal8YFNkuIpT8r36U865SUcHhiKhe3X5DQou.d0qbbx1YkKHggVYOtuqe5P_gMi0aO5tJVfiVcfDhmYIawYYxvBsqpMe8ppU2ZQNOKUBLhQaDoEzrzwL64BjgHH0L5PvcWtW3K9CdiTYco1K91DqGkOWi.ocUK2uVGvAJxBQm.32kukAxNcC_gTUSWTUHQgIoUhh4.6ShR0aPMJh9Tc_QkBPdvipvfugGxtcj4EaxIicUXNc3Udi.yI64Cw8tw6QtIphZWEBu_DQfGxI3TwjmLp8GOdJ0cQ9I1oqslkrjcRmNJbr4OPi3dyy0YL9ZVI6speWRzek5eaP8KSwiufUxNq46L4Z74mHoOTX1YAU.CysPMa1NFj26fDMMMsIr0XN_ZoDMyqc5331pOCOPiyz1.r9dEXV_y3Ni8wWHCX01q.N.VypRIA4hAEZnvT_rEFY8f2kZUSgwZIcT3gAw5LymmzDBd32HM05vL.4vkZY4IG4i8IOgG.3Xo6bGJxlOf8LkawImMmeeZvoCRTlnJjI.h.v.c7SeZXuaxxPpzOHO6sA1CVhM5m.6t6T5JCHfYZVgfVi4UlwiJ3QxJS.Dlu.7BHqy5v3xv66Ij5SqsiGGv5ucn4oLf5EWv7QZRtvrCTssu1qv6M7Zhw7EM6qifgoa9p6TKS7fSBgNWb6T6E7oBlsrFsXNov5qRz.Xtu0dpqgYL5evhdcwUaBenKnjsEvdG1TA11GT8lZgvIeC5cdZ4g6ohcdlDGe6zfDM7RpKwli8LwHzkbSsDwc4x0p28o.Ljdbpm3HsyPazMaq6QXc3bOlfyONFRG69xAPKL4ZsPzyfmoPSVgBuCxVjOMkzg5xr.DVQ4tclJbXvQsYbZn.PtUtyJhoASMlAHhP23JDPOoPNJYmPVZLnWGn9A1VpAMl5iTX14znBe4mAZfIYgd7ioWvJTLBF_BIPxynwa47NQq_j25T3Cnsixe3iUdB_Y0lsgcNW.0bNcaEmqKsLPueeo3eLNZ9E0dsRhKujq2OrDwpy4haSzOY4ahklMz2ZMGKL7QhYhy6ZUuwG7e16H1NT3MlxnJ8Azl.raRIuL3sMI8ROmZVzE0xIOF8yuFBdYxbsJgWojCYAN15GwVrcDR0w",mdrd: "EPPF3gOXZ6WPLFsKYTPQtVJ92HuI.C_K6BBI_HgjkxM-1739791370-1.2.1.1-BnBwka9p.NJ2riYQ55u7z.Ws2mxziCU.G5e.0PjiVe2Rbi6mRbEvFwyhSNly7bFoSy0PX5UgYEYrs4uQwpmgvOfMeDb7.qxTU.nXHyMAEaL5uP2bfef9VkrrwWwmsD5s.Vg1cvq1Pvtn7OyiKjrDDpnIWMfG1hwDYJTYQ83cxUSXlIPVLzA2gJPhStwMbUqQHgal8ywchpOgLhY.xFIAjzR0OIJVULb9m7oJCWACo4sTIvzTGyJuzoAIiO.aOGgWXuG_YHbPCHyjUt83PoBOjfifvfiq.lJNxq8u6X_a.ze5AliSQFYerCEWmo5bvvD57t71bX_Qh3BgorEc6cywZZO9OKAI4qOh15hrt6MgaiPHax7JilvyQH9TQifQNSDTaMKTtMKzAaMVYtMoEQmrmfope_Eg767fy.PfHeSZzo6cpRzMN3i9_Uxp6SYDAUD_4NnkTwBRC2YFK1w3fvU7Z4MBER1bxQjp7RWlxtfns2WNP2vuVzfN1tHS47Qn6OSSTNblSmx7L5RUIc2qFgBGnyzMSBXNzpJr6zsj986XF3ToYpTQljlIzZ2WK_exvbbl8NBs_eu8CUo2sl4mfZrVFLn3d1Bsw7X0zy5zlTvchzlHFsULNpHJCUeq5pTuf6AFFC1CGrhjTaGFsatQVmig5ISFJNqSDGYEAAiGdbxwkxNNR65rX.kEgg5vbWKFD279G1liq6V.nxStWvWrkwAM4G_8M3zNjwa2kwzmjYWrkU1qzU6yQe2lL52pcN81JoX5WZjYF.2eCt.1ufFxUoLoS9fpJSM1jIzfPo7PgB9yjMzsDFTCuTf1RH.ze.NInpui_Nsc4_T3r8A7oCx6zeoZIJB4U52wsV6Aeo_Qn9bczLdJHV6uJ7ImV3AoA1WRqhIts7ZUaWbP1elQ.9V9oRO_2yYWaJYEb2MTn2kdRmhmfr0TVQ9b2ZMtAgF_H.95_0BqkrATnX74_irK1bm9FYM8xc61cUYArwVIGTj9kAWaZA_B6uDx29dsBD0dU7IKaiFqbOR2LRD6rMqrvHVUo5BDSjE8nhWSjyrv3TWVi.Hdth9XaKdgpqXFSIF4tjSIk08hQ5HDvqI4O5IMp8pFi.BdEbbyJhO3kF6f3yKpXnv_uBKV9XaAcB3QZNK4Kr0ELGQeL3dVEsXTkljut_WZrWKPU4TFhovNKAPYkLRWY..NmK6I2Ce5QqxWWeutVpNPH0Xf9tlD6JvU_EVdgTCMos3TB8deTvOGn6OHgh1bF89aloe1Bb6vxCjDehnXV9HMjNRZNMw3YkwdP8VhbuLnjWM4tlpcEsXAWy0DUtbJ3wH7ynVaUlsRpmPFvX95Hph4oqIjVkeDO1oOwKsg3tEdmlHnu8gdoOyHELnPrB1_fHwrJqRwlfNteNUDTm.dNtqjfJe0s0mkcAnPzeYwKXbxuRbOYmtpuI0J9e.w0yq4hkkZBIqp.f4R3TEvMDNTL2aRMc7j9EmnluaYkedzagKSYnsOJDyVJHp5kRJNsaZ56BvoNNOpeDeaucW_Z1mTQJu5MDpFDSUKkcVk2StHu9S4BiN.JDXLWrD4qA1CqQ18ZiYfivV0ByeR7vW810bBXwiTdfp0b580MXy1JVYfZ5f7BSeoA_IchQ5Vx9.UMN1RwIwH1k6FtJbo4dc8Usy1n9cQ7fmywW5Y_OdCM9exFEHLIoJhhReF1ZMJ1boSqNmYYReaAH7If4tc52CVfUpUUxSQ8p87MEnc2lpgbCQlNIYizJ3pikWvA6xMcJ98.CxP_6VS.Bu5cZGHFOT9JpohzA.HZBIsb9I0IsOmxkCf5N1IDKEzPnJqyzjoHzyhmHAtfQrCk5fuuWcvS_yT.6oNpF0BHx7yS95ZcryaNcZMP.bI4hCPqMZ9Lqr08YHWPrDjOC46ncCk.crraqjmRXINhg4QaGWS8WU3zg.prA6vq1ijpwqdGCRJUGJ5d3a3ZfWdgLShB91LDJHGBeZyXOmzhBdLlrnM"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=913566e1aa845f4b';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, "\/abstracts\/search?q=humanity&__cf_chl_rt_tk=PuVJQhzrVkbIiUH6NRfnYLPIGSMPrvV4rmEiKgcXUzM-1739791370-1.0.1.1-jp4mXTzjWHeyloKvVmCU71tXVxEUmHXdR91G1YhpqwY" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>