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: '91360d095e6ffd39',cH: '1hcJfKFXldSAHHN6ltsNXkA8v7xm4jJZww.JMOsuIss-1739798176-1.2.1.1-zjpzxVJo7K0P24MEqnsvBaiNXDW80HK4yuVL1lu.ncSwKD3rgjMHrIS5KBzv17kx',cUPMDTk: "\/abstracts\/search?q=online%20training&__cf_chl_tk=CRBskcbxbiQAPe2L5j4PlFHeJlKikq4fXrV75YmJXgg-1739798176-1.0.1.1-MAUOAppbRIV5prhXxj7uycCWxQiuI5aG_LL6AYAHI.U",cFPWv: 'b',cITimeS: '1739798176',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=online%20training&__cf_chl_f_tk=CRBskcbxbiQAPe2L5j4PlFHeJlKikq4fXrV75YmJXgg-1739798176-1.0.1.1-MAUOAppbRIV5prhXxj7uycCWxQiuI5aG_LL6AYAHI.U",md: "wkt1tFWMT9CO4kR4rUDVyAOzV1YL.Tg_Op2KNDkY7tc-1739798176-1.2.1.1-R8IVDLzjXmmU2TfjdgIoqXAtboAMML_sAl58P.FXH9zJ6nychSIjJQU9A0cwhdtBDjFv467UtUDuf.m9SvcUzNWh74T28HVghVlgfPtav75FyhXbNT.AAcCmragC8phLgcK6RF9lr3FA5zNZVbaKY44aybuuVZlM4jnvNKfLef6CfIIFV4te1xrgmY1L_1WuEahhVBgc2RKKvxALfQ1o.yWNNhKXr9d1BREhGqV6h1B8flMmOsUCdTkk1TRfHPBY54KR60tOnAwDFLqYhHPKDsT9y7h7xxNGwUP8ieeflHz6XcG4PiROlBxRrblLGDQgwY48lEWLgzRfUqcGxyedH4RHsFGxAXEgTZPO3tof6Q9rmT9eoCTKVFWxjGHIo5GGBmMjcW2wCkNQUBVifHqYF5DK6XP2rvb4ziD4H8XF4kpDuBY7mdscbTsdVCOoJion4OalbmS6lv2d0fBvoAIlUkyvmOu4b3Vl9h9LpiJrfjn5ZUT42c5VDP9pw3_EeFwtWNCAC5RApjIWVlwKMwSL3NV60j1HEgA0IbbBBL5CkfNGfpMdWKSs1P3ufCUgH6SE_WUIuzTmnkxX3AUrihqie8OxW7LIQPqKyh8tv7Ksjy9fHlDJ3pFyVHV.yEcKLDi6DTxWbnC2_o6lY7IZ72OT9kNd9AomcZe44SsWc0k.lPNEqvCZVVCfU6lqOf07sFhlllFQMPrJ72dLjQFAlHUo9cH2YZF98xqZo41hQu3nyDoQkyf6da55du4JiRvO98Gf9lskYvpVx9t4AoT6rBO3ADxWbGgovW38S5zn3FSTkJVxUGNGkUPOvXTTS2MMoPdvLrcB.Eubgq1PfZ4gzUDRzAyRmrzhTy16bz7A.uDBCD10UwNSOAWrWGnMImDpkMsBvGOpljLW3c0wc4Dbsc2p5O8erWybJLQNcDLgkzMCaX3iq8oVgZcnLSCFvNZgvjtSr1XbVNlzfYpbZjb2M3Oq8vQjMF9Iaj0GU.gKoURTJZcORYM0jTkXp6P9JWg.7HndfqRMUi4Elk1cS9MYsyrYFCOpcv9BwVaIkysEoBz9IcdPUEhw37iB7QqUEZVTHmTOsmbnEh1Anh6qTgfr_O8Yl2r9wICuj4hrTIQQZY_sb4DHb8krbHlX4loo.DWTuyCroijKy2JhA5QCv1COaVri0Dc_JH3.0ow.aFF2QLfOKiRboC2ITEu.Migah9nJ_8lQgGM_5M6WwgfhSeaX8cf9fu6b8M6G6LoDIgB2DksXdOzTPR.VWXdrXMbxvnorMdJUN3rVw.fe06rbcGAaMhHyCZQDbd9vMSB7aW6U6ew36Wf2vhNwyTqZMtfh_gwBCqDc.tTaU1782GEpHBVsziXIiWdGP7oleZ7tmHFVjyGoGpjq3lF8OrNAzCsOnqTQYgYigqD2dTP.mSL5KU0l5.40xPpD7OIw5HNaRxq5ZUXZls.aDxfUWiMg2bgFBfIIexX70H5VcDN2cAQUWxqJub.3Si4Mrz929Y5RPgJLbsw7MkJsypaWO9nFPaq_bo437DGERsz8IjbVc5hpTEHe8dbKGoTXQrb4JPHaSQbldFGN9U_P6dio84OTZ7euoQqKfNbMyUQdbnTp0h9qoILfBGjEOmBFobPEcM296nN2HVkh3LhLQBSSQqNx9886dRFgT08rEo_sbqnp1F41p52GB62p8.fYbi0Aqm3kWYIbp.ebcYIPqnNwggG2o3aeqJ3iM5hlZQpsAma96jt5PPkYM9sq_4D0o7iBi3xA9kGa1kDBcfMfyCimR_TCJMtYc_zNK3y0EZsJhj4zVfBqePJo6RrRZdQY3_QjornzYmGxCv_W9UAKuXtQlJ0pamEh.l8OtSgOKSpa38Wxf4uhfQb07QybojtVd0a.aTWCfUVPhudMTf2deXQA8HHtYRyHF02.gdbDCQifFCJ1WxxIIIo0aNeRC6RT398G2TG0QDoyWdnZjE8",mdrd: "5oWU0gW2y6Sm1xnvEdKyyma02gwiNPQBO3VR3vZu1qs-1739798176-1.2.1.1-8ewu56x4yzbH4RgmDCtQ4kpvtsZQF24mBWWlsHk0j1XRen958H8iIl5zWvalrwdfWumhw28XxdEJ9aRc29EqRWEV1wi2QcRs3fndlyZ6ZJX_W.KqEAlHVgPXjHunaJmR.SO.v_WC0wOaRa1STrtpMfw9FaUP2eahJol.6YG9OWIqsIHtCXBjRcOpuVwu4aLrjxiBZGmwhtSXOHwEwTZFZNnoi.kJv2_R9jfId9iipUlOnes.YIF.sgIJ_6YJfFj7duqcjOjlfvmAqIJajLG18YLYL_a7zPZpqI5SMbAqkBAO7pCXhXQfzCKD7fd1ezx68jVEEBE4NYGUuoVWjjmtE3WUI6ZfVd0uMcGvnCUFEoikRHpJaq_E.ik3ZHt4NNWYrlUGUKwcXWdHC7MYIvDuCaXVpMSZP2rZuBwYQzoF64.U15NGmffMYGi2uhQb8PIN7Kzwx8MIxoeZ4d0ejwdcbvKBWk1yWJFBCxnPFV.aCmEpB5k3tJv.PHkcYD7VO77hP3CBjm0YwpC82byoRiRq3r9Z5KtqefxVbDYX3d_tI5vzE_JWWOBcWkYusNvEm1n5M3RdN.fgvrD9NA9pMLXbYyGJlnhDJPqaUtRmKsDBA.eQRv2bmSRU_ZpHBg9GxVA5SnA3SPgtNtB6uqVw6kcdVpJrWhHAPD9.qtTvWXP0BrHqN9BPjKGoNLFkXrsDA8p9JfliYqdMVWc1ZCITsJkCyJqZTpSyildEXfj6x.accof5qxv8RI6vgk2U2J9jVD_845TsWnT4MG11l2lI_zgRNesoYfAN54ursgfW13Q33AcgFXILh6vFGvkUphSh7pWfR3.vj2z0Np8rd.h2EeqGyBuILaWldb1HDuSNaqfT2OxySj1kM2_sFGz244sYIlmRVMS5SnJlXRkm87sV.jRJifb.red85ilHpAxzfbk6wVLDdrJ1kj1j3qsc4CBZ1nfhePiQpkD4WUpn2FETfuFb56JiReWkKCSLG3Zs1Q0apzphZ9YG0HQ1_mP_PZxAK1RBprmPkZsezGYLjCFPYnv5gyKqg5hC06Xl0kQ1BBbQaUBYfUD3XB1O3PCRJiFYciVO2O_lASuO4ZPXfxk1LvhiCPguJyULFQn72Yq1zoRdCLFCQ1TPWf.y72cHLdOpgp8Ec3c2Vp1DeUqUWF4CFtWNVYrgfGUJrQtN6r49bhxWISFMdL2LlITJLuCSLjdZbtgQylriOp78ZjNRy5cINj4LpcGbfQZzMB52t9fS6VY3r40SXYh6ptbYQnQWD.4nSDivqLlUwPelimn0hjG5fbBNDHw6MPqowIhxcUrANMOL5GQv65aPI70_Etm7R37JcV8IvGoSp3UZ75fl5zsFSvHcjTkJcl54XBiFP3u5skFd159evcxLhAlBYsRIeZZ93ZUUuycbp._tw0hNC1vIb5gzHnF8IOF9z1pUJfErFacpu.p7li3XLbFey1kOpxZwjDQDxT49atHqaQJo4HNwOtRsSYvuMXHMWPzSRlqtZtQRcx0gjM9SHs.Zo6Ielsiqx4hss161OXcsDAFs5ePRNxD0ZqZRV4R3wmsmp9kfzjzcKkC6N7wyFwV3aoJdk78Zg_.DK56PMKvst3DRurN0EqwDzWsLBSwgxOFy6YeO3Xzm99KMILBHFoHjRy429q3sSUwIQc4zcoRscX0mYNig8tAVJx1np0Ok3yUcZXSRX2QY5YWHKqkTj6d8XTFJnpXM3xzcQXCnBjiH5xwtWjrfNlCoevSacXYpTc4GRgXKy33sJxHIbMi9JdV5okY6Qa2qlQi8c722uUADgoe44zEsANigT75PUPjOuWn2e3YjrNmeedrNstpzxMeD3M74GFeMuXKT2snci_Hjc_sRepexJbamdvdMnbXZ9XhU._AyleB8UZsNcIOTYrMhw1XTXI.0uMMGBSDub7e3eAhXF76wg7skjxCIR0X_5ekoIz8nHRRoTVVj24q_aK1euMUR15SoT4cO"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91360d095e6ffd39';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=online%20training&__cf_chl_rt_tk=CRBskcbxbiQAPe2L5j4PlFHeJlKikq4fXrV75YmJXgg-1739798176-1.0.1.1-MAUOAppbRIV5prhXxj7uycCWxQiuI5aG_LL6AYAHI.U" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>