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: "portlandpress.com",cType: 'managed',cRay: '8e8dae1f586846af',cH: 'aFOBGnJ0O40YYg3Lqn1DBcIFpXegOPVE6ew3JjOMo9A-1732663971-1.2.1.1-EZRao0WaGsoiFx8OSh82Wd8DiVaXFKzJrY6m5xe_ViRLV.qpgA9_5IVJT1SQnMIu',cUPMDTk: "\/biochemist?__cf_chl_tk=amx9hxOQAxXKhk13sEML6F6dIceqdrIGABfJGkm9grE-1732663971-1.0.1.1-7Kb52KOS9WxL9AnHkDKQFrwvq.bmaT5RB_ogzvwQtWA",cFPWv: 'b',cITimeS: '1732663971',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/biochemist?__cf_chl_f_tk=amx9hxOQAxXKhk13sEML6F6dIceqdrIGABfJGkm9grE-1732663971-1.0.1.1-7Kb52KOS9WxL9AnHkDKQFrwvq.bmaT5RB_ogzvwQtWA",md: "8nIt9j6WJbB_xVAVromvYz2Op6MZvDSW5b6rFDcp0Jc-1732663971-1.2.1.1-mwxwKgkpy0mNVtIT_4VY84i4HVJpGS1eqdeHctaXb68BNLmMMbUvjTRydRbDnJJzLX5wiv8T4poGw1j4eIRu6qQ6WObtz_wbyZR9qVJDeAAXGIZp5yCmplaabudwBT92QnewiHByPomp3owLuckFyfIWyDbMTVrKYdFOIcGTb.58ThNlxExnLtv3vv08q5BAxiPdQhlO1MS7yytIb.MRGqMBvvOxlAJRRi3pq1LDnx5BqbSl1xsAFulvBiPA7yP.b9MoxGIrxjOU5wdlmCTsU3OTvbdWmg.vMrdpek_KdChWGogerhQHJ13atRLrSL8Jrih_Y4YWtNabeI4zZcXpS5E_VHc1ohetIuL6Y7plSmvR5dEWqpIrQAia5Z.CmoI4BaLg9P1RYo5Xb4cNotmfbjl9s200JjJQoNBS1PCH2hmjyBVOyTUK003ZI0suC4CSAf_tU_x3H9Zre.LlF7fXEGUoHQsLEVkDjVg0Iv8R5r2r4Q_GoA4nxFhw6dJDujT2OhL10uBtEsAbIi2V8uGUiiF9v9c6bF5vekKDyh3DLSJmkSCpZWTpkq84UwbRL7xThRJyZIzCVjxircbx0NGS08OHzSREF6kfG27DSQwZ7Q64HBMG7rOaA6Sv1WhdNHoxksKibWu0Lbpo1GAd1QbZ_S8eTx39tGmTKj5Hwo30.PuB15q5FUJDcxubLg4yoO3ZDW2QdQ5sdli9CN18nklJsczgPf_hcb2_2GIYv.AlQSc.SKG.nipLqWpR2RAi2JG8ObBlRnjbQ41dvFZPjzUt5Ipr1H6ltLHTlQVhTjr1nXkvAUGEM1FxoTIhgTf781_1y572nabLKDQ2N2sSEpm4RaJI0IK.lGSQ3zv2xmwQHg1j1gZNG8jVaIJdqx3WfCxHYLJ2qvAJd9.60QkzL8gqGK1j6nSAuNiV1hxKft2T2gjvZIBbq4fPqwACC6b93CSB7njdrl_9NWnWs45.ZVNmvovwtVKcSitTdrPx34J5Edh.CRUS5G6mWkW5uV42WERt_kX7RcN.sSGXkXjiZwjLh3f1BDCmbWGVEkpARbB8978QqR0X8UrJ4kE.T62.9FBznvCrzpnvBXnbuViWaKBeMR7IeQGx2J2RKwlQixAI70yQhPySQOas5mRNcXSTHJ2_NiUFuERmkhZ.PSLfJSfXXZDTpn_gbN30Jo1C1ApdPkbSHxhhQ7rBBe4w3y0FURTgrh8Vn_88_9HK4_BgpbNtgVLnW5Nsc03l1UyPS_xVg1WkQRkRmPUxCjs3YmmqV1WfYyPKeY2a.fuENaT.pdVTzQ.hGV2HgxsNSVFtYaC4lislTY5nGFQbSK9rXu.A3vBJpOvZCaaWMmxWU.trvZo0l.Q871n9yhaR9r9FZrHHZ6vMwuosajAOioGzxlhvMJocddexRukkhuSZt1lgu5FKg4.y0cJAkLInewzI7FJUMC7xRH677IlwWvJMeFA4xTQcql46C3t.hDDa3ZEUFnP2zOC8SQ6.e7TDWyRQa_vtRyAFzK2856rhMp8QSGtEwBDRUyeEXlFw1JAXahHSPH9g0ml8hi4vNsqrz_3COCW6zEniO14vhxKxbEdGvcIlIrWjJdKNlhFEOomGfo6DFMcDYhSxjK6_95GIdNVRqMLKU4TF9RqO5f_4DpunMszyqTD3GFrbUZsfRgeR8HxsNFm5EqlGyRFn_3HHiL93lWDqedQ23n8CS4wrc8Bj4K8mDhQfhvTUslj0Po252Oc_6IRS3xufaqvjg1DHeJO2ymjUYgb7jA4cifi6wSJYJdKiweCotG.1TpSwYO2bbBI79TMM46nIl9n.RNitJKZ9cdb5aHhvCkg6hh6Dg0eE0NAfabhb2.VvRmZw3HVXwQVnZU1b9M1GgBHwDhlbyyIR6hMdLQ39QcQYBUmNCAa4w_djkjdp8xj.xlH6aact1HAVQeXMujgH8lYWLW4Zmd2wG2SSE4kx7Gzzz_tVjzaOEQH7RykVbtEsI3aa1EMJKz.QqokNSvxO8F_r9sJ.2G7xrjXia1102ZPDbNt1giW4k7N_3UiUaiL5XZYMYQg1R_U9dIVDgmzt0Hupveax4DmEXVQy1ewQFugRCVl4e_9jvzJwEz8hW74yXDUdewm5PAhM_DotcuvU21LLDHLCVPrCVR4pyIWVKVHA8AtQHhLwqIpQDCNy2FTDBX1KE.KBvUvS5XGR7BR2deZuE6Qoj8TfDR05h_EIdEelT_yfjFwT4FvNH_COddSOgbjTX6W7BOJ838fDEOO8KQxtneBR1PKCoY1R8XInMxC4Hj.1IUYX_FtWdKP0xxWRMAaDYD1O1CzDqph9b.rpR_W3zNQb0qaZ_jJWn4q7_uJSOoJg2iuapy_pqpekt1Jl5Tg483P38bxC3tE2gzZBCtCgiZa7NNGCGReYRuOGHZaP17ldlrGfxxgMm2Jn7vXJgCtxgUSH.5mVMRZMYTwPsrxIHauwFQTCJhcVZmbbI63YzXTgp.OTw1Iq3mZ2GCxDEQE.9d42FyZ4ptZ7jZ1coWawQCwfauWivmo5adaf9.EY8ZY_aQaAf.nbb1JnrXppjr.gmBK3SZ3Udm3x2sw0x4_.67RzybHQnDHaaVhi_hpBlsdB.GKpzLrhQNMFbyWBiHZn2Yvvs0FZVEbWM7U2DZWUhPTClrETU472yuUy7ffC03tAnrvdtSh2Wt7RPYPqit4wUvwD4JPnr70vuFQGEvh7f5LCo2v9H2KhfR.BtxBnSoU55GNze8hZVjWxdFHYp1HeXqcjAagk4LfBBmzEBhwJMLXhObEBgokNd5y0mNuJAEXwzZbUkiX_OBQZbdxtWk2TGx2UubzQx0DpCTh.oQezX5HedLtrD8puXW3v0kThhFL9jTxQ24HIerzNb_lJ1ehwDUXOH4E_D8g4911oZFy16AUYzbgech4amNwG6TaD1..UB6YLVmgiZ0lS",mdrd: "Z.I21lfMwecdkptlYSDDLYA7qlgKqHZ76reK0hLevSw-1732663971-1.2.1.1-cvv2phIYcjoEIB0hc2xKGhtcrXZWt.FA6pVwVYS1cdqBuhgMCWsIlBA.bGP7guffG7gctRYOxShO.h_Bheud4WpPw8DVHo6HHEac1vBy6dcPRXaJ9XXUNSOi0xrW2d7MIV8LInO0xrSo36Wdsz5MwgKawCC79WqpSCYuyQrJxnbdcAmazUDwoIhzvoTugoAfX8z.7MvIEKhlFXkbsRqLm99Y.aa.slYh_EI7EdMyteOUELv1ZGZcPCk4qKM1O5PvfaFXqkTlJSfFgagB5AJlFJYOLEPSlOQCqHCzxZSPtQbIgxj_Kypfo..FgvOQgNPlT4pFrC_VOLD8LOlpwHC2zZ6aDY3Zm0_zdwK4_KRlkNroR4wpKko.9xD4.Ic3im0yTH55xeQV9DqMMuFfp23JbRu0r1piRGHoeqrS6iDYSH_Dr1GN.Wm_ZbO01Zfh0Bm_V5Olw6rZWVfgzupzHa1sWl5.Y41sPetqLz4SwAV75A9jiiDROsdxqrANm3iTuhERXvKxDGTDJxgc3Ca449QF7tLxFojuxTGAqibErrQF_9OTIAR6lrS6BwY0kg7a36B9bLhSO9dQbQjRlQiKGn3.hhUwZYA_9pWAjP4X6JlC5DLHYvY25ekmMKsiRzGdw6m.kcVrdG7Dn1KI6WJEQXVKmy.CYPcZNWMpB8OguHX1QDm85Mi8sX7UOnXsyW.UomZULeCJzzqyKUTDtQLeqiV39mPT70PQBeCWHybLEXY4Pu.udgOutX4aCRzUED.44o__lLCPA6Ii7Jcu3Q8u8Kccvuq7UQNE9QdBJ2Im8EtndD78XB6xljZd3PKJvSdxTraQN7_R1xHpuTVtlf5J4BVeeFOAMtz4gyjaiZc5NRI.5mpk.J7FF1YqOobUvyZCVuHdjUlxsK5yFeKjeXmY2zoSgaDe_G0DT8Ft9XpMS7aVXHhKQ5ETG6iCja509Fp.hncWhifuTsZpfMdQAWsu2QHwAiv7Hme86TzPZcTknXqqDb6MZPhtKCDh0erPWyxH5PPocoxIamoEQfmtIs4O_PSPxLypojnKtflEIwPqeY_a7KLX9v34jFUpdAeTW758Shx.cvi0vMHlx0tGbPV8BZPePEZDHj6QOhdxrMvyCn_CqjHWa9RKZx2KCrITYSK.p79uer2zNn1vByLlJbFLNZH81T5cctBqZsrUgQPCnMxwmjXLrQE99E87LAUGD0rx_GYjVOrsFiiznroaZUAkjiNOwaKCmC_SM5K6RR75k60lhfag_OkPFE72kCuZ0GS4.kcFmnH0FgHGXxTOjaPdJqUMSnQ9x6GeTDKdCkXpFzLJ37yFXXbO.J.TrvxgU0hftku.jdgG3HzSwTYamHNnyZ7wB0jD_e2tQwqGlJaHWOp3tArBM4_B79grZ0CyZh7r2KHPfro_ei_KPvkhuCaWaa6.DJlgXi2aC19bdXSi9xt14_RGdX8dsxb518aG24Nz1BPwCCcjx.HY4bMlc_QXIsb.u2zihB0xoX3UTk2zYEY80i73JbZ6AY.ZByik3n8siFrQPwESG0RRVMALJmkf.Y4zrXUhLCRUIUhPuKtejW0Y3h8Rfx9g1qXxCkM1IsKjbghWpGBB_Yp6pG0tGVKtvgAK02N37wMfo6M2lUaJfkgX6rtmBSq2Vgjxuhxks0BlAbPc1yxUkxLkc3a1gGHx0d72d2ZvY960SPxaDWt6lKtEIilcUpDRfGAhZd7aq8QOwG5EkTttdTV0fIofmnOav9alg5uobW7oebKMCSbtoGgVNPL18OTvDUcGbmLAHFr4Brhvf1d3u.SJOFBiAxuhRnA_FRVkqfU2vdCTN4BAf8pHVqYHbiMIYmMpCUnQy95egHBsPVri5LuMy_srsbNn9GVCfFk8cEExYxLxbYUV3h4mDH2jp5.aKRNHyCR0LE45sihfetoGtboWWpt37RmlTbUZUmld2Q6vSLIyX1AeOuALA5B6nqk4nD914Vi67f3f73Ry"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=8e8dae1f586846af';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, "\/biochemist?__cf_chl_rt_tk=amx9hxOQAxXKhk13sEML6F6dIceqdrIGABfJGkm9grE-1732663971-1.0.1.1-7Kb52KOS9WxL9AnHkDKQFrwvq.bmaT5RB_ogzvwQtWA" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>