7/29/2019 Crutsinger Tech Brief

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Pdo Mrutscbenr

Fcktcb ]upphnonbtdtckb ds d Ontjkl kg Jdcr Erkwtj

Ldchy fcktcb supphnonbts drn dlvnrtcsnl ds d gdst jdcr erkwtj ontjkl. Cb dllctckb tk dmmnhnrdtcbe

erkwtj, mhdcos jdvn dhsk fnnb odln tjdt fcktcb supphnonbts wchh odan jdcr tjcmanr dbl hnss prkbn tk frndaden

("Fcktcb & jdcr," 604=). Ds d rnsuht, tjn odcb dulcnbmn tjdt tjcs supphnonbt pnrtdcbs tk drn ykube wkonb wjkwcsj tk nbjdbmn tjncr bdturdh jdcr erkwtj, onb wjk drn nxpnrcnbmcbe fdhlbnss, dbl cblcvcludhs wjk ody fn

lcdebksnl wctj dhkpnmcd. \jn prkpksnl onmjdbcsos kg dmtckb cb wjcmj fcktcb prkoktns jdcr erkwtj cbmhuln tjdt

ct frndas lkwb mdrfkjylrdtns, gdts, dbl prktncb ds wnhh ds dsscsts cb tjn prkmnss kg mnhhuhdr lcvcsckb ("Fcktcb &

jdcr," 604=). \jn skurmn dhsk dlvcsns cblcvcludhs tk mkbsuon db dllctckbdh > oe kg fcktcb pnr ldy kb tkp kg tjn

ldchy lcnt dbl tk usn sjdopkks dbl mkblctckbnrs mkbtdcbcbe fcktcb tk gurtjnr prkoktn jdcr erkwtj. \jn

cbgkrodtckb grko tjcs skurmn cs mkbmnrbcbe gkr tjrnn rndskbs9

Gcrst, tjn nxphdbdtckb kg tjn onmjdbcso kg dmtckb cs trkufhcbe fnmdusn fcktcb cs d mknbzyon tjdt cs

rnqucrnl gkr tjn nbzyons cbvkhvnl cb gdt, prktncb, dbl ehymkenb ontdfkhcso (]dcl, 600:). Okrn spnmcgcmdhhy, tjn

onmjdbcsos tjdt pnrtdcb tk jdcr erkwtj cbmhuln gdtty dmcl sybtjnscs, tjn cbmkrpkrdtckb kg nssnbtcdh docbk dmcls

dbl purcbns cb tjn npctjnhcdh tcssuns, dbl mdrfkxyhdtckb rndmtckbs (Bkeuncrd, Frubnttk, Inrnocds, ln Khcvncrd

]dopdck Ekons, \nsjcod, & Mdrmckgc, 6040). \jn krcecbdh mhdco stdtns tjdt fcktcb dcls cb tjn frndalkwb kg

gdts, wjnb cb rndhcty, ct jnhps tk sybtjnsczn ct (Bkeuncrd, Frubnttk, Inrnocds, ln Khcvncrd ]dopdck Ekons,

\nsjcod, & Mdrmckgc, 6040). Cb dllctckb, bk rnsndrmj wds gkubl tjdt mkuhl prkvcln nvclnbmn tjdt fcktcb cs

cbvkhvnl cb mnhhuhdr lcvcsckb. ]nmkbl, tjn dokubt spnmcgcnl cb tjn prkpksnl supphnonbtdtckb cs vnry mkbmnrbcbe

fnmdusn tjn dlnqudtn cbtdan gkr fcktcb cs =0 ome (0.0= oe) pnr ldy (Ldbcnhs & Jdrly, 6040). \jn dlvnrtcsnr

mhdcos tjdt cblcvcludhs sjkuhl dll db dllctckbdh > oe (>000 ome) cb tjn gkro kg d supphnonbt kb tkp kg tjn

ldchy lcnt ("Fcktcb & jdcr," 604=). Fcktcb cs gkubl cb d wcln drrdy kg gkkls cbmhulcbe erdcbs, mnrndhs, ondts,

nees, dbl vnentdfhns, wjcmj mdusns lngcmcnbmcns tk fn jcejhy ubhcanhy dbl rdrn (Ldbcnhs & Jdrly, 6040).

\jnrngkrn, ct cs dhsk ubhcanhy tjdt cblcvcludhs bnnl tk mkbsuon sumj db nxmnss kg fcktcb fnmdusn tjny drn

typcmdhhy nxmnnlcbe tjncr fklys bnnls tjrkuej lcntdry skurmns dhkbn (Ldbcnhs & Jdrly, 6040). Fcktcb cs dwdtnr-skhufhn F vctdocb, sk dby nxmnss tjdt tjn fkly mdbbkt utchczn cs nxmrntnl cb tjn urcbn (]dcl, 600:). \jcrl,

tjn mhdco tjdt fcktcb nbjdbmnl sjdopkk dbl mkblctckbnr suppkrts jdcr erkwtj cs trkufhcbe fnmdusn fcktcb cs d F

vctdocb tjdt mdb kbhy fn dfskrfnl cb tjn cbtnstcbns tjkuej lcntdry skurmns kr fdmtnrcdh skurmns (]dcl, 600:).

Lcntdry fcktcb cs gcrst mkbvnrtnl tk grnn fcktcb wjcmj cs tjnb dfskrfnl cb tjn sodhh dbl hdren cbtnstcbn fy F

vctdocb mdrrcnrs (]dcl, 600:). Fdmtnrcdh fcktcb cs d typcmdh ocmrkghkrd cb tjn hdren cbtnstcbn (]dcl, 600:).

\jnrngkrn, tkpcmdh dpphcmdtckbs kg fcktcb tk tjn jdcr cb tjn gkro kb sjdopkk kr mkblctckbnr jdvn bk scebcgcmdbmn

dbl lk bkt pnrtdcb tk jdcr erkwtj fnmdusn ct mdbbkt fn prkpnrhy dfskrfnl.

Dgtnr rndlcbe snvnrdh drtcmhns, C fnhcnvn tjdt fcktcb mdb suppkrt jdcr erkwtj tk db nxtnbt. D erndt lndh kg

drtcmhns lcsmussnl tjn prnsnbmn kg dhkpnmcd dsskmcdtnl wctj fcktcb lngcmcnbmcns, jkwnvnr, vnry gnw lcsmussnl

wjntjnr kr bkt fcktcb dmtudhhy odans jdcr erkw gdstnr kr strkbenr. Fnmdusn tjnrn drn gnw drtcmhns tjdt prkvcln

nvclnbmn-fdsnl rnsndrmj kb fcktcb lcrnmthy coprkvcbe jdcr erkwtj dbl strnbetj, C do bkt guhhy mkbvcbmnl tjdt

supphnonbts drn usnguh. Grko oy gcblcbes dbl butrctckbdh nlumdtckb, C jdvn hndrbnl tjdt cblcvcludhs sjkuhl

dvkcl mkbsuocbe supphnonbts ubhnss tjny truhy drn bkt rnmncvcbe db dlnqudtn dokubt tjrkuej tjncr lcnt. Ds d

rnsuht, C tjcba tjdt fcktcb supphnonbts gkr jdcr erkwtj drn ubbnmnssdry cb jndhtjy cblcvcludhs wjk mkbsuon d

vdrcnl lcnt.

7/29/2019 Crutsinger Tech Brief

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Vnskurmns

Fcktcb & jdcr erkwtj - pkwnrguh mkofcbdtckb. (604=). Vntrcnvnl grko www.fcktcbdbljdcrerkwtj.kre

Ldbcnhs, ]., & Jdrly, E. (6040, Bkvnofnr).Jdcr hkss cb hkbe-tnro kr jkon pdrnbtnrdh butrctckb9 drn

ocmrkbutrcnbt lngcmcnbmcns tk fhdon;. Vntrcnvnl grko jttp9//ikurbdhs.hww.mko/mk-

mhcbcmdhbutrctckb/pdens/drtcmhnvcnwnr.dspx;yndr?6040&cssun?44000&drtcmhn?0004>&typn?dfstrdmt

Bkeuncrd, ]., Frubnttk, O., Inrnocds, I., ln Khcvncrd ]dopdck Ekons, O., \nsjcod, N., & Mdrmckgc, D. (6040,

Odrmj).Vnspcbscvnbnss tk fcktcb cb d lke. Vntrcnvnl grko jttp9//wnf.nfsmkjkst.mko.prkxy.hcf.uta.nlu930/njkst/lntdch;

]dcl, J. O. (600:, Lnmnofnr =). Mnhh dbl okhnmuhdr dspnmts kg juodb cbtnstcbdh fcktcb dfskrptckb. Vntrcnvnl grko

jttp9//ib.butrctckb.kre.prkxy.hcf.uta.nlu930/mkbtnbt/4=3/4/4>: