this content downloaded from 18.7.29.240 on wed, 19 aug 2015...
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![Page 1: This content downloaded from 18.7.29.240 on Wed, 19 Aug 2015 …web.mit.edu/12.000/www/m2019/pdfs/Foley_2005_Science.pdf · 2015. 9. 6. · This content downloaded from 18.7.29.240](https://reader035.vdocuments.mx/reader035/viewer/2022071407/60fe67f9fdd4030008644698/html5/thumbnails/1.jpg)
This content downloaded from 18.7.29.240 on Wed, 19 Aug 2015 18:12:39 UTCAll use subject to JSTOR Terms and Conditions
![Page 2: This content downloaded from 18.7.29.240 on Wed, 19 Aug 2015 …web.mit.edu/12.000/www/m2019/pdfs/Foley_2005_Science.pdf · 2015. 9. 6. · This content downloaded from 18.7.29.240](https://reader035.vdocuments.mx/reader035/viewer/2022071407/60fe67f9fdd4030008644698/html5/thumbnails/2.jpg)
This content downloaded from 18.7.29.240 on Wed, 19 Aug 2015 18:12:39 UTCAll use subject to JSTOR Terms and Conditions
![Page 3: This content downloaded from 18.7.29.240 on Wed, 19 Aug 2015 …web.mit.edu/12.000/www/m2019/pdfs/Foley_2005_Science.pdf · 2015. 9. 6. · This content downloaded from 18.7.29.240](https://reader035.vdocuments.mx/reader035/viewer/2022071407/60fe67f9fdd4030008644698/html5/thumbnails/3.jpg)
This content downloaded from 18.7.29.240 on Wed, 19 Aug 2015 18:12:39 UTCAll use subject to JSTOR Terms and Conditions
![Page 4: This content downloaded from 18.7.29.240 on Wed, 19 Aug 2015 …web.mit.edu/12.000/www/m2019/pdfs/Foley_2005_Science.pdf · 2015. 9. 6. · This content downloaded from 18.7.29.240](https://reader035.vdocuments.mx/reader035/viewer/2022071407/60fe67f9fdd4030008644698/html5/thumbnails/4.jpg)
This content downloaded from 18.7.29.240 on Wed, 19 Aug 2015 18:12:39 UTCAll use subject to JSTOR Terms and Conditions
![Page 5: This content downloaded from 18.7.29.240 on Wed, 19 Aug 2015 …web.mit.edu/12.000/www/m2019/pdfs/Foley_2005_Science.pdf · 2015. 9. 6. · This content downloaded from 18.7.29.240](https://reader035.vdocuments.mx/reader035/viewer/2022071407/60fe67f9fdd4030008644698/html5/thumbnails/5.jpg)
This content downloaded from 18.7.29.240 on Wed, 19 Aug 2015 18:12:39 UTCAll use subject to JSTOR Terms and Conditions