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="390"></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: "www.tandfonline.com",cType: 'managed',cRay: '914d5a6ab85af8f2',cH: 'NcxEODPh4g_DVahEaNe6ZEnHkqJjLfiSZ8zD.xnkA.0-1740042518-1.2.1.1-0tauGQAlYQu9tUu2zhWz0t_CJK9rCtVH4H0YrVGWhjYavNXRntlm8Yf7P7Y90CEM',cUPMDTk: "\/doi\/full\/10.1080\/15572536.2006.11832616?__cf_chl_tk=KpZjh8ZpHmiiZIuvlOcXLNnf8jBkzNgOM6m7uVmofdU-1740042518-1.0.1.1-mwc.Yse4xM6aeEb_Cn9L1BdQmpiH2OKqItXVDl..Mzc",cFPWv: 'g',cITimeS: '1740042518',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "unsupported-browser",fa: "\/doi\/full\/10.1080\/15572536.2006.11832616?__cf_chl_f_tk=KpZjh8ZpHmiiZIuvlOcXLNnf8jBkzNgOM6m7uVmofdU-1740042518-1.0.1.1-mwc.Yse4xM6aeEb_Cn9L1BdQmpiH2OKqItXVDl..Mzc",md: "JeP8rseSvLMRJfNuGsasxkY62ypuEVN3REa7y2pAeIQ-1740042518-1.2.1.1-7zAZdquvywi91Q._QvuA2LgWQVsFE5Z3qU1x1s2Y7Vj1ee9lJikLikAwTZ_QHPsTR0jNwDzj1XPlaNuqnWhJlXIkh54yBufUL7puLHpCC6EWtl5n6CNGWIsrndor5B11L3X5dRzLRONG_RLY9G3SoQFYowqlDWhDbtMLurefIC3puJLW6XnPvUjMqQ0M7SnYTTrHdwQXYmI.KdzPk38V8zO3Ivf5qTqp5v.YVxNVI9ZtZL4qPI5iBu_88XgbFnDQVQKXN02fzI3G.gYE3U.Md9fdCSZ.SqSYDxw6VTzO1TICK5fxVd4CEK47IxqhlRdVymSM4TO6T24JVsxjNuBnJ5bTbivxN4GRIqQuwRCIFEP6MHfZ0cvY4kfodMbrFOnqqHUhQFEFzLwW6tLdc6rEhSQpMRfxImNad9xLPzj4gv.G3.FKLN4u6ZqqaMPtd8Xp3ftaSJlJdpZjobqWDlidlGfy6x3KnAeQeGVWMqDLolQY744HIS2yz3uHfWqn7DWQ8A0EcRNVFG0T5Ylr8lk2cUkQPbY42ICnWVzEK.ll5Uz8RTxPN3owbRm24TAoklyIwWypOK2VMmdevVZyMpS4yLDkh1Fih3BvtouWiZTsDlmfpmqRnOgpimWeN9xjudMuxu3f2r6FyBi1OdmtSScLUWfE6sMe9YdACLCCuLY6GmO0CSzYy2IbZDgF0JBDE_TF4q.l2ZWjCYNMX7or7R3ZT9NGmZXNeK6TbwA1cFXtlAanSene.kfvZ5w86pzkUm4r6ZGgECQIcpdXEyooXD1GNlMMlmhPMtxhZUVN_x65LuR_bLn7vYpnNid2ijS.GGKm8KM.i7GDB9LpoqY9Ejx238ChoDlDmD.vOUq5ZwxccZSbLTiTHdMlYzEOowBphRHDrPg.9uV54g.nh5nspwCVjNplpeu.Q5E8JAfv.KQMwRvQ5G_1HoNczert9YMylbjogWQzggulrhUvXDamLDQW44eZRpD9YI8F6OJxgjX3vehbKEgAVGcySD3Q.iVj.6R_D41NGp7.ZjTV4zOun1T7SHG9Z5PhS5tO2q7FyV_LNEmKYydLRMOYluWT19eNoPi2la6.m22SoUn8Xo6jvCXkxE0wL1.d0NHy4C9r8qbKzG68LGiYvBYLdG7UaC_SIr5.vpzi1OEUgbgu26rAkCA3Ossj.t00_YJWD6xSuNeEC8CpfC4Sx1jXz4IUIr56ujmXAxycnOhxR8PPxaXc0ouxBC0UACX0gCUJFJdpajNgK2QHv2whRYgwvE1U7tYlg2RSdYwUGCPoSyjBtuuIxudVO95DLVlFFr5sk_30BkPjXacz_nrlo9.ACKA6XZX8WwYsZK4qAcEWTIjTP81uPwitCUdB0J5N4mEigT5bvN7pMZOk7tkrktihNjEpBb2qlj2IHrJpZBNt2jnL2W7_YO64a8VpQtOwumXMzOSDDwCq48RKBxNzPY.CMrussBGpYbkyzgFNxmdGLzYwW21J5R0EIAFmzm0LHCLHVR9PmTAmMJgcD0bWV3aeJxOrW7cuq74iUyPC_0P0WM2z84cG0SZ3Fa4ce13yl5SwRf33uhi2UONXsScNHckCE_CYTaZOttTbdH9Ak5QrKX2Z6kLZyXXfRFACJmnQxjmzrcQQaVf_VJDaPFz.F.NZ3DBLBb3j..7VJDFbUiSJqGflRd6rPJv2Id.f0NE63LZjpVxfc0_Xcn1W8xlCnhdKdc8t69bwY0rt0pQuEfws8f1PN4ACl90Q_DJ9ysQVSyItlOLH8Rq1tVytyyGOflVUA_vxUv8rVdTH0ysVzHnYkquJ4gQ.D_FCLOOh_ItTZFbF7Q.xorMMpYZh80zbaokbFQmT1DG8W0_Yz1kfcqONMUBRd2jOFtyZ9VeCAsm95sPLZaeNSC6rLMe9y0Ncr3_uBadJ9avzclr8aJFAiAEVkY7V3ccNGoPFjVku_B_iUFveysaXwC2XwBUtxoroyCNqskNU2mjNhGKLWHLyRzODoSRxTe_6A_uBxMrSgqQxRmx1dXdOYEtBOt7QVw6IRRjX.sN2alKhKD7gHwE8P7Mw6hz.9PtUN4oc3itY.WLx_ISnuEp2uk5D.hSdl.zhyWuS.SVmGinBJUKV1eVieilwezyua3ggLue5lELxUzsVK0SQzRdVbHUtifQ_WnsDpBvndfwOKwMBBGR8GYyI0OyGEMpSsfOYd_mxvpV4o5HYvC0gtsif5eCNoGRwO.JCcTXDDAmIepDenMgPaXBnTFQibmq9_NF6Px6My1SJGoXu0ImcWE1EMKT.MzM6oQe40Q8HxsIQT6jCEZlel2sRYw2DOitBSXMcN2oKGl2Q5gU7PD.ABzS_Qin0prPyHlfansj2kJDYlB8bWuxUCWIUSL0Tkqt9tW2OTB6VT_7VBJMsDExTC65T3a2emSj_tE4qSrgHcTYeahimjzzbtiPNZu3ahf3dgn_KrehaTC_SDaEc2M5kyi4izpWsWTxIRTJTw1ApL_zm_J6VyMU6rrxb_qg69dw4jFiKe697wslyfipYBWGhVzeL.SpTjRehPyXU8KfnsCW7lFkLO2Mn9Kyo745090q2zVEKXUpoBwFxNPLCDTg_QC8kedDw7Th9g_ipo5FV8rBJPk8pGqMV",mdrd: "YciRQmpfyQbxdYagZ1tDrHOOnXsUyH3BNgLUlpZkiVA-1740042518-1.2.1.1-iDecaD96fMr4lu70BxkckfWSEzUO8HJsc.3PCmfUhhHLno_f41uDMzjhXCeYnyWDcHmvdSQm3Z2qfUYfalPGMjzCSQjsX8UeZ03vK3hj5lmK9a8WLLfqGSwyNDrFvGJSNcRGwm6fk2uudbKBAOJzQ4u0I8_Y2t8RmzKrqUnv1fy6hhse3Kc35tCl6TlrpbwpxEL6.jhePVEj7Tott7uZVq6YCGicb8gugPSlpUf0_K6uNRGudoMamBG55BN13yu9h.1NA5oVzB00VZZDphkeMB0332vDQE34uslBFG2kvL.Q4gh675TXoFTgjgK_xqdoImNaamrtlmpd0rei5GsKV.x5tceqQ6vw235TWQmO6ysl.OqMWtEmi6ypr1nUrziKbFTerHMEJ__jHzRGWIpSR1aEAdjjMFoEYifCPb5l.cWL7r_gVq5zQAxy5xphUndDL9uGLXbyqaaAjcHzKrCtheke5Vpaiqtx7d2_VaweNHNHLurmgdU4yO.fmuqee1PrHA1L4T5r76z2_2bieSJLn8qh1UbuVFfg09vnFq7Vw33mRBROtdsObIy.miucLrT8Z9GuneG9wW6CXTEItmx6Wd6rwjTkqyKjBe_MTt5ZudtgCK3IyGAUOfsSm7WDLsK5Kd9elw0xw5LmHQ3.XeKD6ec.F5zPKn4lf4n6Udae0JjWBBGbg9aMJkrNnt.dhv_75K7I6u7pPY3XDpKErsEl2Zu0WaijB2aSckZ7pRg5bSjukzQRKSMIbPqog8fsR84_N1qgThRZvCXWMnAEWErioGSnLjFud99p1eGHDCVKjbosxqge4OTu9CKlpnoJU3ks9D6TM6EOL3FEqNX53J5voqSbOjsFZAJ4DJJbloND5mv7syNpKctAwCnDkYXzWLbNRWGk5Hrn5TONBDj9AN1kMb72GmoItDZ4GWsVIevzbG6KP6tW3xSCKK5jYGVHl647WkodojCeldok12R67vghze4VItMeYKZKnLVBR5HG_zVCxpGn7DONAQ75F7KbqHyUb1ssLiwS531rNvfMjuGg1LCJVXfAGA_TiVAgAHEYcKlfqz0JGn2A_WGomfobK288OKmUaaCOQeU5xFXXKF8b4OV0A9jOieL2OWaDkEJpru51dlA_zRs06wAElmMTU5iYT6a_HLujrARipTPu8Z1bMI99tfG0NDLXZs9ZM.DrOqq5sCVgrArq7KXMonb72yQttHLK4F7MsLaLUJxNP80goT9W8a6J30srowchMjXys5lh2TLDo8DeZGJiF6fsZCjYZpVAAzvJJnBXUUslb7Y1wQ3JVEnpCe7KMgHIRPawjl5Ktp7DDEOASA2V8WSqEyPDWkMxtNcPUrkZ9LhlTV24pN1H._VSGqzlvuppG89egkKrBXER8KJk9Pmn3CjorR7AHIJkK9bfa9rQnq9iU6Up_fi3Ctw3XtaeDlOcNZtDdLtG6S8Sr4k69Q_aSb.H6Vrg8WHuykWbFqnJgLZnWWm5DMJrXyPN8jLBzVCsmuYoLpsBFRJH4S9z06GX66hljA8f3KKWTafoFnIHzXF0cS2IqJ.aQpPMC2rTNe0.ZaoNy1oZoVCZjMr4imWSmgor3XIS7KwWAwg2RyU1WGJ.VzygEaVBgEch74Bv7R3846YNeTNJg03oqzu8p20IYa4psiVZhvY2HkIWUSaaU4.lAn3zmA8E6yhPnhGh.JK8HvR7fFlxIjgSq8Sp4mlo9LKlmPuekaCahPRxvv.b_EaE1S_TpX0lvvfTxAfx1aoF6tkfqWBsDtypWHhKbA3Bb2Ut_Uef2nQ2v0Cb4hiRZP0L5zs6aDO1TqeYOwyUtOl01kTC7sf27oTSrkj1U7e_aPQu2XPp8zuDp_6itR2HIMdcA1_BHX8PMRLYAxzkaXNeZbPN9tNQ3kJYDXbaG3xZi156wyQf1q6VgBOMu_hGGBKQcsZmjFt5rOSsTB2sFfK06ykpZ8vhYXrvOKuIFIaYANJchK60"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=914d5a6ab85af8f2';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, "\/doi\/full\/10.1080\/15572536.2006.11832616?__cf_chl_rt_tk=KpZjh8ZpHmiiZIuvlOcXLNnf8jBkzNgOM6m7uVmofdU-1740042518-1.0.1.1-mwc.Yse4xM6aeEb_Cn9L1BdQmpiH2OKqItXVDl..Mzc" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>