CINXE.COM

Just a moment...

<!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: '91350eacf96f602c',cH: 'hFRK1XKAxr5tUcwEJX_1omBcZmywyehBm1h2CCYiVZw-1739787757-1.2.1.1-zGgJzhpY51dN84WpuqEPjQ1ZtgxVS.1kHEnZirxV6.M.sHSOV2qW_4M_eezlYR5p',cUPMDTk: "\/abstracts\/search?q=Fikre%20Belay%20Tekulu&__cf_chl_tk=kFAd9Lncu6Ia_0TtUER1v1yJlmG91vjbhNIEUH3dS3g-1739787757-1.0.1.1-TOo2hQuSXJy9Pcnig9M2Fuq7KoU4D0A45uE6MWBSDCw",cFPWv: 'b',cITimeS: '1739787757',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=Fikre%20Belay%20Tekulu&__cf_chl_f_tk=kFAd9Lncu6Ia_0TtUER1v1yJlmG91vjbhNIEUH3dS3g-1739787757-1.0.1.1-TOo2hQuSXJy9Pcnig9M2Fuq7KoU4D0A45uE6MWBSDCw",md: "7ajS.eBKZp0syPMJhcHWBAFDSPIYwoRWL92ToeH5tuw-1739787757-1.2.1.1-8JB98QIxc2n6vUf.bvCGgD1u1j47gQTPVYgrFKLxn23dgtRkc3tCefDgA2sl95LwAN6qqxKJJRwE.vABicEZL_pZXdG7Y7FQkrxW1nh92H7ZybSlnQB0F2EBjkCdmeXHjvibaro.eXMuDWGtkWhzWJDlWeiYGtbdNCuQuO4QTYUbB7cioeDKkxe7FPIH6KH3MWecJs44i62rvR20_r_5HJZnqujQH7Y1xt4byOI0irMc0tZ6GY03QBr9X03I.00BJ13FRisObcgTwwXkuS79Hx9YjkYKUM0tha2RjueAbXHI4jnV8MW4wTxT7cvssbxCxs5.qpolqeR38eX1V9IjE70rE1_rmTI4lSs821i6rhlgsXwLU_6M.eP.SNkvyhJevnLfWD2da.9ow9_10FQJwPM4fYpoDiCsmUiwCDUc2axMmGX0NV0sBkYZ66r0FTHV_t88crx7SIRpY8iRyb4PYxWgwC1nDlXJLMugxrsXqTg65R8RZcRKc17t.p57bwjcaD25X56ZtIh8eM0d6Ix4cmSDv4URBNqbJsXSZZVbucKKMSGiokBP6GXMUSam2nNh8DZlGkYZJGzEtpzPNczMLvvGrlWc97CTTdlp7HIfY9Y66rT6O51FHiWdUMUWH6mf4ju.3pbI6GsIGOcqvpsnZ.ssMqKqorZ7Q0iXK3Y8e6COvTrfqNcaJXraLMILGTwXHqxPPWMvuYDpBBl6r42cvpev6ej3EFaVcCiD_gxnz2xinP4Be54A1_ClMV9wcGV_OcLsgzSHPDMPY3TMeYIe5cBI00nF_wwwFjXl6fEjlJC45cFZlKNeVvZt84_1kq4xpU7DhO.vMGKtvHNkMxpeX2NW4yB9gBj5HJiDjJVeGYijudQk8AvrR9A4tY.TyZr2BUyLf5PdwzV46ZJSbiX8lew8dRUTSOUmZ2p4R59p_pNwUZhn0uY2.pDo1InP2ZWk_94SP6FxvlpLHXqLZxj0ugpShpCZo1xHQZtAvYHd4OALNlb7LN4A8lUFiS1Q7UHBtMhC24Pvi3pzTyl_oX0RP6CIg61maJm41w9.3wz551HIYp1ktReYmFHUTDoRSwqJWbco7QASEoOW7F_ZnIGdWMY_hoGNJM0mu3Qlv.BeP00zEsbBpQFlLt253f0Hsm_5KyZQ3zbdMcjxiaCV6astWAcWMylsQOq5H4Fn8X70du8lDQVNlstTkXNrm9QtOiEK2lfX1dXUbu7wvNINiVKNRyRBGF7CPkcQj2M77_Zv_fdAlHaiIbjpHHXr9th7drgdl4sItMYHiwbp6S5dzI4BbD7mgbGnPeutE5wZC3QE_iXbPcjB5RsNqicOcYte4BRpEHoUGCtns6hZ2gabXXQs25yIJXbdWSQjqJM0eV.SWq3BiRGzYTDkzkL95g103qciiU8A8YIkNeIXEcwoPmJMv6fq.eOisHvVd1.wohEoZv4Iz.SxhB5c4jzw04gf9AZ0nn11hS_u726Wu.cu7lVeeW2zaA2blGxfFseHtIGdqzI_LQb9E3geW0V6M3UntU_sspTOolZtgVdmBumbs4OcL4_ORAAG8JP.s5lLWoSf1.c.sBbtwzEiRyQwViGGPe9PWg8elKS._sZKCtRKfddnnIjAPmGf7rSvo7eK716I6_okrllaaJKE8uAVg_fxr7rXeyhThqOQ.EvarbEfX5nTo8fqx31L6IIj0dAAqY5If4wsXkvu99KvkNF7E.tcIHgVmp5E0gaKXYX42FE.pPYVQsJUjOG3QjzS4VLp0QyC7aeDbViUHig.I4FafiO2XEjaTqY9vX83qFPZ5RHSBZ409jasVP1gY5doumHwd1VWlEXhc5ksAUnGYMXnCs2LEAR4LUvAtmPIMnoJJy0FnZ88Vq4iIO4oFwAelpq.3MY15ntu3rOUHc.UIhCIWFJIMt8twzMId51KnH_YYm2AwgQXvT.IFbw2OYFMSfxG2dkMJMpxJkTv6b_.wbjPoD7M9mSR",mdrd: "ekQdrEOrh9dDcO7gIlQ7C_P4qdH_4Mybbd4DAy4hSpo-1739787757-1.2.1.1-4n1niZRGJ1GasUSpXpX08JKGp90zEwng0L6NMrBCKH7_48oSG9nsNTnWKEw7ls55mkdVM9tZiADgYKMBpHwRWm2dhUCAQHdiiALbKpZq8ncWhUKnOk1md3BwrN3o0FStnD29DMZZNSFSvpKwHkoIMd7pVW4H0qv6SBgBFk7WRGbF8WvQ33fuWgnGr4WP6lqIgciaXsixJz7ft9F4EiCheDWs_.ruScE8biP1HJCTwt7CbhMjD2Jv5aViSffRS_95bBohPsTgAOPag02.3v3RRyafP9QvPWCUJETVzuWnLkn_OQmnONlWNi8W6GhhXiP.bRCmWDhRF3bhRuonofIjxm4fJjSGG53SsT7G_LytoU2MeEOKcNRWsMPI.CiJoJSK69ceKGVDUO8j11ugAnSAhC43w1T23pHJhlpeWxMfY4Oq4hOgMUJc2AWGo2YImQos8AuaXdwfBynmRcggwuRkTH15KHDq0wlXuLtJ7aFDVU8DGVYGnJuUMow7jfUTwUjmI3W315lVtlsmNXWGmmA9ZqGEoeuEJqlqo4y4pnn0MLqWj2Vs4fw_FXvyaKO3HsktQi0SSsj42Psv08BlOgdM0suS0reCuCsfVTjs1x6EoXu20B2OLbkRhe0KcnXfVfzOJvV1jFsNUU0qZOB8J97slIDZWlFtamQUACeUZ7vEKjusiRzXyp7f97.cEsaFozugZa2zJwHVVBrrEHISRgk4m4nttGPeEQ7OU7_L3O6GEjLOhKDOwXBVpT7A5FQU8UODsRd8XHN.weN2a5AlxUjHxbrzQT4dYGiux6Yyvxc25CA7A3qSbiWLhsU9V.WqQqBRdI4XhTZOO45Uj8j.IutvwnVfCkv0zmb6oYifyz106rLk4FH9qktjiFHp82ap4rnAU_5e.zg39oDM.ySZunlE6U4fuQ9iC3u2_ek8RF0i6tK5Wmg.9ExyluanOe26gN.p82Tk_a65pFf.eRNJ.2GtXMBbZPhY3yUTXl9aLK89bsdDE9KLBRXBrbg9H75Nhsv0fAaviQQrGEZrYtXKBlbsrpWda2Yg8RaFpntFyuMq.jkNel3AGcCkB45r3FBf21GaEWBM68OZ4PCmtKAQPOhIjnbaqa4FVi8ojaLbQca7O5Dmx60.sgAgWaGOwZUhFDmN7ajQ7tle5N.XgUAPvYonpJriG1eLrEC41001PJ4gpV0svSR64gjwq7Y3H5NsGmJL6FmLh.jPB6TcPFd34m2uGlLjozxQuHXIHnk1t61LBuhDvUmta3CMka2mfnhMCDJ1bvhdFevYLPAtgqqnYn11RWZe1aN4wzmLLQcbrcF798nGf_WyW.GBOqbzFC6fin2zDMRn.0QtuNhOzK51LdQMspAkvGKUZJeHKiHw0j9ssSyyQp0DTWoEsgw2GHiWHtqWld3_j.jYtq2lzO0j8qNuL7pVZ265zk9QQNaNsJ9l_rGzonn2hghWBf1bgqUz5MzTkmXdLDgMvehyI_RZI9gb45eaio6GCqPkNQeYi9v2lJQjX_vuC4x30Lin.WCq810m4zWTxe2YNvq4c4Xy0r.Ehk8MEVi3hJ97tdF.5jWZ08j0UB0mHr3WrIq57wLCUt7kEBmVvviom7fqay8YApX7CnBpZMt32we.jyg55usVKKdeXjsxVR1av0n8X4zZ860CMiu8ebXXeERc2G5jQwtr8bE.WpuNJbZGKjZkPEALv3xrloW3z8EGh7kk4382zx2YYpdPiMvpXpW3bn9gEnBiQJwekVxznwtnmSG1h5s9kBNcDcv0HUeaL.O2S4DC0ktzXgfee9P1iit38rqAfwWrD_ZBBxU_cw_bvTSzXg9vSVBU8Wl0QYtUNhhwZNfTEXNUcyzRnv9_kbA6THuJmIXywVp5plGJF_RmRphR05SBkaI3TnD41VGYcKQDDwfDdUiKmnNNyNzlARccnYuSUloBDatpHXAxyW7D_3Gn5CUI3owVqD8XmbTMX5AyDCloh1.DA0FvCuA5GQTseh.8h3kqpw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91350eacf96f602c';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=Fikre%20Belay%20Tekulu&__cf_chl_rt_tk=kFAd9Lncu6Ia_0TtUER1v1yJlmG91vjbhNIEUH3dS3g-1739787757-1.0.1.1-TOo2hQuSXJy9Pcnig9M2Fuq7KoU4D0A45uE6MWBSDCw" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>