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,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI0IyMEYwMyIgZD0iTTE2IDNhMTMgMTMgMCAxIDAgMTMgMTNBMTMuMDE1IDEzLjAxNSAwIDAgMCAxNiAzbTAgMjRhMTEgMTEgMCAxIDEgMTEtMTEgMTEuMDEgMTEuMDEgMCAwIDEtMTEgMTEiLz48cGF0aCBmaWxsPSIjQjIwRjAzIiBkPSJNMTcuMDM4IDE4LjYxNUgxNC44N0wxNC41NjMgOS41aDIuNzgzem0tMS4wODQgMS40MjdxLjY2IDAgMS4wNTcuMzg4LjQwNy4zODkuNDA3Ljk5NCAwIC41OTYtLjQwNy45ODQtLjM5Ny4zOS0xLjA1Ny4zODktLjY1IDAtMS4wNTYtLjM4OS0uMzk4LS4zODktLjM5OC0uOTg0IDAtLjU5Ny4zOTgtLjk4NS40MDYtLjM5NyAxLjA1Ni0uMzk3Ii8+PC9zdmc+);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: '91342d0bef3f4d5d',cH: 'cWHFDfXsZ29lrjfQKB84.m4I9CISZy5fRdvXVTHUgbk-1739778515-1.2.1.1-bxwjSRGW4LnkQ9bSpAbXwpnxPTlLEZI7l5fvqR0XE1Z9lN3AExjEzaTPEfmz0fMf',cUPMDTk: "\/abstracts\/search?q=Albert%20T.%20Akume&__cf_chl_tk=Kg3ZOBV6LeQD.Yw5U3hKcHCY0VgEBwlAgEbB.PFOSMM-1739778515-1.0.1.1-Z6WiX15jbADALMWFR5Rrn7_hTuX9oD5cM5V2qkMtysM",cFPWv: 'b',cITimeS: '1739778515',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=Albert%20T.%20Akume&__cf_chl_f_tk=Kg3ZOBV6LeQD.Yw5U3hKcHCY0VgEBwlAgEbB.PFOSMM-1739778515-1.0.1.1-Z6WiX15jbADALMWFR5Rrn7_hTuX9oD5cM5V2qkMtysM",md: "WGSYO1arDxvwM_noV28MaJhdpkU9_LhOtBCaEmjNsR8-1739778515-1.2.1.1-njAR3sxiqSZb1Z_LhYtlRdlzS_7INTfU38TxpaWPgsQHxoM3iIcdHKkFE_oBDGEzLCNlNbYXWzNL73O0KHVjHBRP9tzhApj2_acU_KXufx03Efb8lYm4lns_FvUHzTMo73A5PbQRiBqJXFIC.u_4cYk_rzdJYZ22ctNsedSkQbXM7s5zlbqgckbFAXcte7vrjhUm4fToydcM0Gj.5Oj.Lp_L1JZu64QiVM29rPuAVqvMBonmLTa9EMkyA7rRWCFP_q3j8_lfYVM0r687yU8MLLziBabdB9_SAHkBVPNJY2kjIBeRY7LHtKfJou_nPKavYeRfCJkBc_64VNq2FfF1T.UdE4VAmEfJ3B31U9iIVcKTNd_0gP1gq8Xf.HIJdXt32_wI1jEpUhDkl9PEFbWhaGJeg7ttqYLGVO1BDy2kb0Bpfui8SXRi2oHMtz4xy.DCs5C.aoS2PJIlDD90DKnFsCHaVvAsiziDHC0ukOmTBO8iDyjGvO9PkUPdOujSSgMkYlO_Z6FZinsNXBGyJ.JMgKuRoemtpewWOalo5FmWxq7Uh18_UcjvZvfajHFwHGFuOpMokAj4FiKf95inqTQs7MUMkQxr_VupHhDnJKKT5sImtM_YmbcoCHRUJ8cLX252aoT6N2BTJ5hqmm_TnSlnqDkEE290kZ2QCbL0zb4CksOqNheIMekv8l5jmlXfQDsMwN8yRXca7a6Rtlf9ooUKxNQ8iZoTVdaSlOcBY51ry9eVyw7dvFQ3j3wI8j_djX0hE9jJMd2is8j4wvaoY1ZxuBwjCh84IoHJ2Q84CmBxQKF5ZAxjzlIx68Cah.0laTvRY5HoYq9l07g5y1oKcowTcoq.vmsaPAYCMamRykLbpCyVxdqfkR3Og1x7WbvSl8dg1MX3zxaAYOEm9hW.x3Sku.1lOPjBR_kVvs5ZtHvfz7OffJ4LFrqA41C2WkO55WUiU6HhxWItnu32.mhBy_DmEqg2hsC8FbmejdGqQJDDapmCKCDWX5shgquowMHEunYf1F82cVjaqGuNPmiFGLx0NBfSTJ4DaM2Axca.76CUZIemfs1gNfbTIyLs3zEUEKECy5L6e.KOH0UNX8tAVrWsdkp4.xVId50xDL486dLX1qER1Aze1P._CPj8LFOH.OJr5Oovrp6ZlCWCfhCBRz0.T_E2RTzCDKf25Az6Z8079xCQxmECfdjp1fToAn4dFKQBWTXmpGgsidtHBBci0j48Kt8knMlVv2jN1F77fHX6IGzM6tG6EkbWjpFSk9f1_tLsWBpy_U0G6iQuksV4JPVDPiZmy0e7Cjgd.sKNq32ZMcIarD_10a7GwikbOUfdzyPwfVhmvZyn33XsxqwP8ZiHkW51WAfLrV7FXoAlt3YopLJ3mPYVo4GJe3nmlnODrH6TeauWEuTn69pqDvWDmPxrxOzzQJCKv4IrgakXiL3V4LVS43hLR7WW8bIhml9hVzhwSY62YKDQK6UGCb1s5qlAQr3wBUPJPPIAdYCZeNi_cDCACyeie.5FiRfaBIV_Akkop6a9c3L694TLKmlcRduQCoHWv6HAWidKpRa_HcU5glufhLR3zFHtha8H9731GQtq4MI.9DfrsX0zURYM82vVjoNsb8898taT3X4llqvir.6esl8Gn4.ZYNghBBIPrYO6Lnh5JEchxa8qY25KAKtEcKYq3ACPZrswdb0_IpHi6ADpHBGFlq3RbeZM_0Vs303l9KKOfrIstvTt.Vzwmiso9_aiFJHIwnZrBwTrR8B9bCzjqw1V0xjhCeg2xhiod.A5lLk4N3Mp_q9Xosrq_gICFBuwsiFI4swSZETWKx6s22CARsHoDBPhsboUJrJYc2bhJ6V4zs.iYqRkZM.ZAbwwmwsrfr2A95Uy2_2k1cuotrqXJS9D3qTEPzBR8qpp6eWzu6qrXnmuoGY_OHmHf5e4cGkg2FI_Vcz1uKi4ue0t4Jw",mdrd: "C8Azlfux9DiMZfMJJjiykdzr.CuSLzxyAdOYNnqBmYE-1739778515-1.2.1.1-bVY3uyxUBz_Ti.WajL5vLumg2hAUk6meEISa4uTUhxTFXb_vJOBGstESrkpdAGT9ZyNkVj49TvICX_.a5gzI6JgEgCqy.0flAGeBMDkbg6_MqC3Gao0S0SwVmXwbfGWrbPqaTBUiZkyNBUWEAX3qOzUYttH5.QPitRtqNM_kgK0EYdCTwDP3hgPYotdj1IrIbVoe_rsVIuL9B6o1JLOauJTNNHcvQJS0LhgafqUyAKahCqK5y.yflDcHzZxbwhfjfbfnjU1bgf6dUs_AKC0cow0FiZGmuyV8PsRarznYq3pw5srOzMDtix_tx7F_twdS2aNUB8oWW2nFpdGnkry4bSk7fgPqQI74JFVV_jHOwpt0RcW_9RYFFZ.fNHXtW9XuUEpPrlTM1VzXA3yVcJkDyTLH6Lyf42FkVakr0p9YBFLaeBRHGMWi6n.uTl78_o.XmCCjIWoXtWDDszJJ5qs4kmHzPhH.TGpiygh.z3l4Bfz5vVIaqmF8O0K8YC.Of9U9YZ3Gg1_lyk2dJq8SvZy74pob3dm6DL3h2nxIMPN9N1QSi96oObLCHNRKgvGXHlI1bCcwuTxfKdV8fEyC7JfdvlAQRhF5W_vkgHRJe94hJs5qlVBv8P0ykqLhXvg3i02uCEFS.8y2kJZtdWCf.W4VSjgGDdqUG.CPYliZsfgbp9TmqP2uMTfNHOdktSNLgaZsnVAMsebhGfh3Z2vUKCJssAD3cBHxJIZJZpChCXl2oY.WoyCugwp4lVoMtLW8PkXR3CsM2zhqFLhbV78KhK0JMHk93ysDsikKiPtZGuoKAttARHeOUT6rPTT1aBvIgI1PqQtLEuxdCjdZ8vzMzdOf70iKon9WS5sIlA5UiykzOtP07KVKGO7E_83ryMqPUUyFzkeyiz4VQ6LUqsjkJw9Ei1.XsP9Z93ptksrNm82HFvofnHOz8QJvGjDMZrSG0zSXeNbrwHvUZNd6iXNpQPufPuFwstod2moDJHn5pbZkzuRoYtgpnA3lSQRVHZ499xcd9EAT6XqYwhCsM20x2OTtHPiI10tUli3e0zaS6YMzXGzufi16B3NmdiacDJ5aIG4PlMcxGZjfeeixXTzwD1e3_W19GDJmixBj_05Uj0C5bMqOen64Cg7wUmJk1Xw5rkCMsnU5i6aWmxFsC.FCi4KupOgKr68U3G8xLZ7RYMAjSFHED7HACpEIWK.UGFO1oPesjwoxUXpFdlE5_bXv5CG2Gdm4KCrqOK_t4b3ANeyiJtq_AEJ688FMcPAP3eizNytsVX2FbJVThQF803grmiblEkawFTPBsaNV4Njcn7m8AOU21rRkZrH6DusShLTFBViSow.2M.tonwgMAs7_tQf1YpXoVCBKvSwdozWdaY1a_iRQgNEl50hKevZoZEGLvoI_Qy2spC3Aobb1zLMdL.F52mWT_OzI3Nj52hrjIRaVaqo6KCbWgF72aTjGQkxPfUasI08vpHVdvZJ6ssGy7j_Vs9t5BGBA1ia5pNs.6BYDpIas6L3TuuhNLW68I50iQ2.KhpbjfvhGkQV_SLZA0K9U__T6QWhsu60kPgI.Q9BaT8y2Dv_wHg2pXqIzLe8yCWkC2xWmmNF8KSAEYBV95JdvzBFcpwCrZ_c85L.VCaQVYowX34QomIdPzxxFWTAW5PzSD58ZwpNx.NhW6ZwnfX9oRYrX3ln0pH0gwJzS6cxnMowW65rQGy8deIca3f5x3IwSQ6Pjzx8Rf97eWI6gNmyv8bLuCCSzqsbTjcUE95MD92S713.HQVYaNtJc23_vczyiAHWWSjgmvzo2mm_zRIzySz1jSRQ815q8aKbbKpJv5J_6XZSRxYV4cD38GOrJ15q5MKeMNrrTbX71e_O2Usn1B8sW.vy0IZ1cPZ2pvMjadS4xVzxoDT.Ecy2OHOOkNH1M19wqSg_VkTafgoi596Bfav2bukwVlDkXcgHu5akLgfrCwqCbd_AJFbPUB9wJIIcw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91342d0bef3f4d5d';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=Albert%20T.%20Akume&__cf_chl_rt_tk=Kg3ZOBV6LeQD.Yw5U3hKcHCY0VgEBwlAgEbB.PFOSMM-1739778515-1.0.1.1-Z6WiX15jbADALMWFR5Rrn7_hTuX9oD5cM5V2qkMtysM" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>