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: "giveto.ucdavis.edu",cType: 'non-interactive',cRay: '9140702648593e4f',cH: '.nD_xfR5RCBHU9vJJeYoxV.8uEszr5DLpEy3ZDHHsiI-1739907093-1.2.1.1-HDH2d3emiUVyGrXhQTGQO4kAybYABrrZonb1lWiSf3V51WglW2HkcTze5vCnn78E',cUPMDTk: "\/?__cf_chl_tk=hqncDtHkvY3q5XyS7GqX44LWxwOUFwsWRGDt9vHsjIM-1739907093-1.0.1.1-6HymPk22fnnrSNaIm5Z8GkmIyW.mT.DJQGyMCTAyNmI",cFPWv: 'g',cITimeS: '1739907093',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "unsupported-browser",fa: "\/?__cf_chl_f_tk=hqncDtHkvY3q5XyS7GqX44LWxwOUFwsWRGDt9vHsjIM-1739907093-1.0.1.1-6HymPk22fnnrSNaIm5Z8GkmIyW.mT.DJQGyMCTAyNmI",md: "K5_6W302XaMP_lNzn8OOWm80aKA5sVjfARVoWG5ydwM-1739907093-1.2.1.1-h1AsL2n9vJUvV7oKHIH.sWSVNUKX6N.lqNt439g3v1kW.QxCEd1SR5rKVMmaBuxQ4pVnoHBeuTeC.FjxWHRqvJvnjwxx1Nqohbjs5nMGF8Qfku44Gui8gp3U7D4EsrswZxh7Ii1GgKK8R1KwVHAveSZG6lY.dqLZSthjOFsluzDGjlNUZxPazXYTh32bervlW3wIIUUUrWgz2IoUmtD6tICsyrMhA8fe6mb3sVv7fiEBGnumcN0o_Db01BFB1PriDY4fAnAl0l.embTm3cmm5I_VHmaJewa7xZL.3O2GSNQSgikKzmFRckMNFU9_BOM2pdMTmareb9Ms5p59hnfb.Pw7hUlwu5lcjL1LzvvpSY9fV6ezzEPYjg3QDUGdGBNxmxmMDCLkgXxvhn184t0n.D_fCnnPenLt9rIA2jtyEQFKWazk4gvTVnxkIcfzuXcEbn7AU8vVGGA9RhGqlfQiqOBv3u..JAlZpinOoH.Uv8Atv0aMdCfi89193vEsVD3VvfWLsw6new6jevr9ipmfIbfcHPRRq2CbtKhXqA8vog_8DROoxUhI_yEnxlSCDCUSvbB_9bz5a5XfjEYfyQHoPZMRnSw0.3ha_h72.4djO69xLOQu1Bc9PySW7knIX8ObEeU9AQNJxk2mMlqllS_CVt2vZShEST_fAKERBRg7Y_qDvvF4sZPSgb.jVeaa79O0i40SxI2d5Kg_xSYdVzuA6RmYqIyPjbczDd9oZsigRbkaYCerDuf0bfk.dtD2zJ4Mx3YQKOJ9UiNZarFk4ux81jNKPnCFU9tfNhQIHarTEC6bzq.CiKGPoDL7JTP65NAMMgz3mdhihcunISCr3brZldB33rtqKbvBGPvdXPWaDbz6J68wq1npfq6CeuvH1yVM0Crjp98iH040NhhVcpPReqK_OoZofsuhkGCpzKVdiQTSAHxBXMEymLqLJW4fHlGnkjrBKJMP7W0cUEz.DEMhMVE0KkEwWGR9j05MMq4H810p95bfUc9ib4XCq4UI_oL1SH8yTy2oJGa6eatdgw8DnwHB7PPzw_vdtIEYdyyAN.AAaZVN4nH00wixpJwl7r96nXc97RlAFDW0v214ThzjEAkm4PlIQn6vkzUKlq6caadiZNGydj9eaRB293ph1RYB8tKouCNLJ63AAba9qVuXFotUcbvP_oWZYLxV6_b.iDWyT87uBlqHPKlRh1RQw.mzuigYQK1JGmK.PLfBhQTfZOkYVzRsS1fPvIPyuSroP3vHC6SwCGbaOzlJpYCV1lWfjDyJ5EblMl4.cp7a2WfHxKM42EsC3smLIKnl6PzzPoamSvZfjItaxVOdndnBjtxk1ml0ocisZ_xmEvifOi7FgPWrcNSNOIg_vjBH6nl4wvYXF6euc_nJaCXkx0nT0W1VS3NWLi0S4osDf28HFSNiI9vrSlCHfFfWQvnXHsFHl6Gc7vAbklKDNHSyOWztgazIQzx6_6yPdCizLsh2TYSdKtUu8R9Ttu0wKBxtDQ26nGzU6WwsB1oTSCkd0ijMSkYNnVesikiZvWa3jmMu9zF.PXioPKBfPUd_vuFP649qgIbrxDobJmVAuvm9o3VXUoR3PjTGhjDKAG6_YaWDEcB2QsJCqBxU8qy9vDv45F65oLjjiteVrJLsJqKhTjhPPegmWxCq4c3uB.JGmgFwOHgiNoKy0sN_MO.aKgKr2KyDVIZusSVHvwfCyaoZGCacnxiJQQc0_bHSgoc6YdjjNQDSScUOeIJ2Vcr0gNPfJCymXtgRGxseDM0bVlhUUsaboJSqHyRLbwYRpRzE4US12_lYX07zTAD3pZScpp8EWp7xz3IFZM0ZeLBxVNey51fK0Rnk",mdrd: "S4ro2nSPXhqqZtkuQfpdGBIk_zbdIJolNp9Armlm188-1739907093-1.2.1.1-5q8om61lLZG.x1xAyUXKy.BAvIn4h3FkYJsa6JuNTmPekI1N_VfleYaLRz.lgWLudTjGOMNko4IIUiLyiS5pPEmhI9flByUipLCrsH14HZ9Fk_EZ2ZiNWabeV0oaqN4aANV2hDYTHXgjqQgzF51bIpwJstj2KhSWYTpK4JB.i7guGYji8W_0Wa4oBfn.rgYX5ghGcOAFFykC5.lMbLURQJXSVX6Tliokh0yy9bpqmNB9P1TTPR4R.nKqc0tyoSzxJPzy3ftprIL2TX8uw4EEgI4FfrdSuCckmvDXgPj.2Mg7lt6kRn2c.hJX4tEpZrZiK6.v4wQpCkMx6mSmYjjjMoC2ZXkdYFHtbgz.ShHMV9PyGAPG_JpgfObItXMLp0ApEPBynulcfRxwhb6NZVIbkR8zspIrNHCG1.R1PFN_W5cUKbrHSdjxaBvEDF6YMPS2My3VKi9wxCUQWQVdgEvkPEvprNPyecweSXPvRNOxsLX6NmA0jy_9IlMiptAJGPTV__kNyzsKoiNX_UDWv2aR4zORQB1nQBImHFO8MWwZyHhTnJtmfSLT9KXhhQdOuazQigSl09VlOdrH_ce0e6tLXOk_OiGIuoFCSfWTpyuBQzfYcgSRNC.RTAICi5BHvjbn9iZijUTOMxUexfKlXb_E4H3EdlPLvtEHl5brruLDEuefVICdDL0.Zofk9Fwqw9CyPgPNYyyHyMLljJKxz05vys.lEWo4aHFWUIiBSRMFTPxmu_.Bw_dQAYtpewm1dPngtoFMb59VsHtv2_pw0KrkzoM4QhZ8l2P_t_6i9E5U6MDaiqnpyUA7aCpL8dXb08rkNe9_zIDhZa7hWOp5zY_00Z4E452BQmYk7X60Ye214c8qxMfVg2vOc.rqf7h2odsR9Q2ccfto6CEo0TCaayy7aEnsPmYj9P13a_wttnHVKU2RskLaXyJ5fWsSqoOC.TVEI7W.RPAb3PV5XHKOPZIKvFqpirIDFfcksWqWro2kYWIfU5L.9wIDgb7oyvRpDzeBwouwLp8Q2O5FfnLRD7HC.LekBHpRz98lrExD0Q1IsbyxXr57eIko5wfb2qlGTP5uhPgB_1wxUAzuxCj.XCKgy8xVINzpgfAxnO_OHo7Gsbi_UawM97UQcazazu03kIWhSbKpvh5SQP.Vtb7KAZQQCHNioBhCMjKhb17epM8kLHo8X3Obea3joUhlitibaHwOkOqwo1K_iwxHCwVKv1tRImzVddWBWPcX5yIr3PRbXVmqcGpbmwfcAsUBah8FOFLbZb6oNmdwcGfC8jFcwUZ0tijgDSJRg1gIM9eFMXGYeywbusikaZaH11NA4K7bEtWnj4bsB3Kru2bRsUqCQLJ8gBCI78GwlhN97MgW6S22SntlfXVAhM8oM_j5tmMmt.622ZMm8pBlARZ9dK_lk3YNpaPjlMzKJg3veDKiQZB.3_ybsolPgMl_kNwM8wtbSIpmwjdC1VTa5boC6mGG8VOnulEyOFUcEK10Yh6Yp_4H3IWkUC6No05lMvTaGdjmRzv1AMQM37b4rqNGeCtoKSu6jA4SfOwt5OIQKzD0T3izSTIjaFtGSq7f7YI4DwhyXbS2ZIsvLcquy8C.XTnrVsWsgtBgs5yClWradQVmsKDqTLbECd6dLatmSs0ohIIloqr10HUvWMS9CWhYFTdcbZEf1ytYhTqNQoTvq1qqbMpYNTuqsuz5nVWAUw_ExmMe8vfFBAJVfiQMQgzlvBcQR9jJLz5MynuedgY3DRIQvdZkmxea_INyANE8xnZmwVjGEeB8t9BdazkL3kGmu0HWMMh2mvZNy3KqR2M0bu_tXQxQDgVClDjqeKXgOe1fUF.D5WlVGAmYzKrKD1RtV6PbyP6fuwLaKawJ98oJQNTfzgAP3S6B4.JpS4BhzY3it6C_HmJ_x5dEUz2HoRLtHiATLVeCFfDM9y41RkZMGcRXiRdASdRURvhARtSeDDvdH6LiRdc2LgTV6CBsFqYjBPFphxnRFA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9140702648593e4f';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, "\/?__cf_chl_rt_tk=hqncDtHkvY3q5XyS7GqX44LWxwOUFwsWRGDt9vHsjIM-1739907093-1.0.1.1-6HymPk22fnnrSNaIm5Z8GkmIyW.mT.DJQGyMCTAyNmI" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>