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: '9134fd91dc1981a8',cH: 'i0gsgK74_qj02Le6uLOAqyZaR0kPrnhmfYssHRSbDVM-1739787056-1.2.1.1-.kcCIdVGDWEr.pJKuAkCh4otIT._clliJqK5gLXwWgQhn0hH8ZnyYEm8s7WY42cG',cUPMDTk: "\/abstracts\/search?q=older%20adult&__cf_chl_tk=m8.3mS27L_yXTvaRyv9j.JwmUQWzHg8wZ9hklycNKvk-1739787056-1.0.1.1-MWRelue1dHxu9DV0tPYIVLbOe5FAuM5cUT3_1oa1v88",cFPWv: 'b',cITimeS: '1739787056',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=older%20adult&__cf_chl_f_tk=m8.3mS27L_yXTvaRyv9j.JwmUQWzHg8wZ9hklycNKvk-1739787056-1.0.1.1-MWRelue1dHxu9DV0tPYIVLbOe5FAuM5cUT3_1oa1v88",md: "bFGMeROY3Xv1aIC70m83H1a_N2VFzkRe44zljDzrYiI-1739787056-1.2.1.1-2e_rdJ0f9UljkuD6jU_F7s2nqizi0TRiNrzIKGdx7A15oIyeW8Tx2HQfPWRv_K67hWK76E1z4gxsSN_r6RQ79xoMrFzqLfdFm_dja8wR7r.JgwuYAipFI_owZPB2W.vvJ1CesA28_6E3myBl7rCbiIdUY29f6xpPPMQ.YLWhEytnbD7A1L8aRSpmo9Ouhdn0d2_tw.pOabkInoh9XQby9aCTS5B_Bb2xL3.m5YbmLr1qS5LnhrZ.WoyRNJXED3mjhvdceSAt4Ai1j61W2ToLI_tePLUQE1Yt6ra2dcGzjWvdN7iY1xjrD3wwQaGnGAchcFIL9Dw056JOi11qitJrv9xsRnPEXCWJY22nzKHfD.L4rUH1LIwsLp4uIo8hB0eY4FZG7yMKMXvuP2cEclE8JzTu9Slo1_aarRtCnxM5Vgt1WBUjylFMIHsGwmTusra1.MjajyXfbCyPtmS.425peP1Hk9jTvmbuNB2hfDzhAZB4tj6JON7S2iEA4UQfIWGcca1d4isXxuSUoMWw_c9_Uogs5LXNzkFVRmvSz_egwEypgd4ieqE99XtduyTxvtdU_3DKjQYo1VoG9k374o7pV8TeQqPGUH6tIPqtfCdFTcZzvf1ax6UNWEW3O6PpQnQnJ87FeVSQwQ7M7V2Th3u5tpPk80.iA9KZjcG3VnpKJN6qOYnzgOV8dv9HnXeMZ7XGBuSG9uSw0wzBl9Gt7HuoTihQHF_h6Vryft.FCVbpTleIrhPohIuC8H90xzsmZRc9PzJ5t0rM1I93SIY7sbP2opJ5GORkXX6T6N4fl10hpGseCarEdZ72DDDy2WgnXzF7TyI8PnnoIhNUTTEEdJ5GG.PtD9yvfxVZSIEjLu0Eh6U.cEmDSS_HEwePbdsTW7aUzkNouRkSgGLxsHuRahHVB_OOyFmquKVdH_HIC3M0vo34sOsW66wlEjPvLZecD.YtXATWkAPXAdkADoVqKY7wfHnAO6OpyfkxXm2W3CPm6Dm6F7_ELE5kY6sxYSQ45C.i.uuVAqlAjxP_C.NYccYAwZTumhaPA2xDGpbnrjtoUkRG0pc1AUkRZdFiCYERpvqiFtxpIxcKrmt.5R5U9dXEwclzNpyTZ7.M..rn6pgP2dX1Zx2G9ub6.wFdMaEyYhLGdjB4eInC80JV.pfIXzzJR75qoLPO0Riccmn8OmmmliiRfn._EUfVGAItk2XJox1WEWJsdBFBhZaOvMlzyZ8a3rW3plhdh30LomrmkC7n61tPHEyhocyArMW9J4ps_QNMR3KsP2tXdDPvjapFNjr_7bqM.o_sBNA0RqWBLcrGhzhNDlQYf0SBArg9ET8iVCTpLmXSAoP2AOOVCMzmBD7wHxhuUoJHkPvhDVuEN8Ssr4g.ePuf_6eijdGw.h5bPPTG2vxIX.xBBGdkrKzehrEsoLQwBEkjK5T2Di1tHFpwpHzDgM_eeiIoq0b.v2gGUEqfUfgljGAvYUNSM5fjvtUalxm54BvL8N1b4CJCCfC7JHqcgdh5G9AmRS33k4e5F0qKL1t5zbDUEt.ahUGNQsbOC2vrZzkentJE5GKyzFh1Tq2JqTA2lNxwcT.AP5J_CnrOtXVj_Ooa7cgfuPDMOd0CxQmyAtjvFtxDIYLsJyjZzYbwa5NQbERs7t.CF2FayQg2m34bBgRJkLaa1Sq8HHVp.9dm10Zubx5YSldunbv5GkC8o7T_Kv5mq46.8Z0NsHhedYXp1H_B.hgBdfwwogOF1mki6gNjYNQAIUZodn1vCX7JnQfjVi1Wxo9zvcG2douYKtXF3epcvX0SoTOCD3kaGFJJ8jpqsCHaCI2g50d6SfG1oSxi52hIpl8j2iGd6QDLipx55Bb8qO4Sm3GJbj2lZQlgJ084jY_N1YV4vsef5tfMi2cGFQUmgv1QxBieYCQjStc.MTscdgxyd3FcF7cFJfFRWedLhfIIEa0gB3OPnFY",mdrd: "xMHTXJnejIBaWtKU_GGZrqC17dJICuQElspeJ.kyzEA-1739787056-1.2.1.1-bnn_vPaCCyzu9Of9h7zw.jHXfGDyD__K5m9ysuuSMRLrWCGC._kcvyikAjch8WMBILv86ZHEnak10z3WDkRTKlQCB_nDiDaDelHTNh75X5KdwvaXv8xJgLDQcndzuCEVabiE8jAN1nmJB7lewt0GQxL4WpnDIi91TKy3H0bqXGWoCLdkSEFKbm3b7Z.7nHx67B1lABv9gLCSfakzr0RNKphW8Bg45cCKrmjevRjdPN7r_EK5jb72Y1nmVaF9JWalRG_Jb_9Hc7HfAPBXLFU.msJsVt3zURFFPG9lrspBQdBKZAb32wAOBuICYGaVDjqeG13Ca12Zn6k7n.xuWEUcKfBAMgRbIU3QvqPHPdkqAITsvZf3moENi0fgOp1rRTYffSo08XD2CKPiF_JqabyxmcirqxMipDT7npvIjDkoMW4n5r2r.TS7GjqEBZuhdYsfQS05eOllaBuVUOcJMK..8xUbDIE13RUbrOy4LHXdpwjwjR_KvwSJ0Al05ToKDyVWHvvdCOSIlSIXFHl79MbAu7NKX.8yKHsmWCLvugohuovgKgzKX638F.f8d.JWXZTmetVDa7AqRZftlmcySGEVUumY5FSuRu2xfntC4C0ECe72zHhEvfUPLc8b2DDIwSq0lXo.Y5_Ms3ud57fNODRgJpa9LQE.HQbk_dKGqGknJxQXssut.ggbvyEkfl8lTtcwCIPO32a3KaBV_mGV0NzwId37tuNL2ryKTQaawbtQNzLqiwfuj_AIJBwrJiAk2Un_hsO08eKFn4tWtwnZUbNAEwD1CYLC13Nw57dmCvwbOoAHqO3rfnlZvCZ9IHb9vS1fOICwIgnuFibUozsyXzNCkPdsQLoINAP42Uj8MipZqpRtPEB0tR0JjBJAM2LVYbe.3U6MaafMxgppSXPMZbov.KUOjZdWQFgJyzQZKzM7bA5TmJ60FKOaBZErpyDdbNUS9fUz7vhKDEAa3gdiro3s0e6si.ZiPNVo8Gsne_vKyer0xALWZ1amcxT4dPDdpGKQjm5PWmKfjYBZ0_xMu3hkdRryxM85HrKqUbNMh0IdIoxANiZccQG.u6J5PJG7S6ly0yahT1ilBhZn0UKa0m556QXL_VCPv2UPKVnDsvl33a6N1UqN0H4PVpp3O.5rk1bBPcebJKMo_P96il12fQ7tHmsjubufj.ERz6ONjSI2sD_PuVckpCYKw7U5Cd7CondI0lf09mXF6zZULXTQPdBItZkAl9Fb3_hPjW3bj9Qq8d6qDKd3cSizllro_ZsnvYEtDY_c6oZwwVUQ_d3Yd_JoIGn63IHbY2_S6skJ5tVMChNDc_kQUF9Ca_FT9QE3CLlpHhHNsTd6k98_eUVmdxTldB0Ysm47wFPmZnjtS6ezRR2WvXPcZRqicongOMjJSVPCrWIS9i33bCVTddKMOOIVJ6OdTCFeKwBFR6g8XI033WjoffjmJARXXbYwomA2MQX7TktMAEw0V2Hi6y6DvL8fOemwksMcMsuKxpvrE9ymb9eYkyVjXr4gx3AE.v_m5CJOjI0RPX.SlIcopS64gFkJmDvMAuVwOQ9SnyJGxupkmbbAN5U_qvnxG9DJgP0S_LI3jMcBuIrdK9svT1J9WVw51D_jzSO1HwWAbIXBp7HQ.h9UVX2rkATjiHVFZO8KobONy632kS.3_vawQ3YRUF2euSD_DVNSaJ9.nUi7YOc6Ox5WrGHiam2o.D7V6tJLQ3dQfThPGyYu8O4_FUxYZnSB1EmQVv4g.4IltFZGzGcxLwLHyrKrd0Ig3X00EmfSYupa6IIfOPGaHTmZYdZesE687NHtli.AWrkgsZjFlKfA5Cr_C82jKgUCLL5kQ6bWaHevW28KFnJq1N9bOF4wGEfrNKmkwwkHBlyc.vL2UEOXdUq3kxscGBhHERzw.DjUZu7g9VLxMzZS9p7x9aWpjFnra9K4vBS5dH0ZOKu7b2vyI5Ar3K.L.zUGPX34apvmnBvV"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9134fd91dc1981a8';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=older%20adult&__cf_chl_rt_tk=m8.3mS27L_yXTvaRyv9j.JwmUQWzHg8wZ9hklycNKvk-1739787056-1.0.1.1-MWRelue1dHxu9DV0tPYIVLbOe5FAuM5cUT3_1oa1v88" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>