 Purdue Mall and Administration Hall at Purdue University, West Lafayette IN, 20 June, 1999.
 Purdue Mall, the fountain, and Hall of Administration, view from Electrical Engineering Building. Purdue University, West Lafayette, Indiana, October 29, 1999.
 Fountain near John Purdue grave, Purdue University, West Lafayette IN, January 3, 1999.
 Purdue University Mall. West Lafayette IN, January 3, 1999.
 Fountain of Purdue Mall and Bell Tower at Purdue University, West Lafayette IN, 20 June, 1999.
 - Purdue University 1/3/99 (West Lafayette, November 26, 1998 - January 3, 1999)
 - Purdue University 1/3/99 (West Lafayette, November 26, 1998 - January 3, 1999)
 - Purdue University 1/3/99 (West Lafayette, November 26, 1998 - January 3, 1999)
 - Purdue University 1/3/99 (West Lafayette, November 26, 1998 - January 3, 1999)
 - Purdue University 1/3/99 (West Lafayette, November 26, 1998 - January 3, 1999)
 Wetherill Laboratory of Chemistry at Purdue University. West Lafayette IN, January 3, 1999.
 S.-w. side of Purdue Mall, view from Electrical Engineering Building. Purdue University, West Lafayette, Indiana, October 29, 1999.
 Frozen ornamental cabbage at Centennial Mall. Purdue University, West Lafayette IN, January 6, 1999.
 View of Nuclear Engineering Building from the lab at the Dept. of Chemistry. Purdue University, West Lafayette IN, January 6, 1999.
 Jack Yang, Stephen Belair and Pablo Nigra in the lab of the Department of Chemistry (a little white fan later 5/31/99 caused a fire). Purdue University, West Lafayette IN, January 6, 1999.
 Students walking between Engineering Center and Engineering Laboratories. Purdue University, West Lafayette IN, January 6, 1999.
 Founders Park at Purdue University, West Lafayette IN, 20 June, 1999.
 Purdue University Mall. West Lafayette, Indiana, October 10, 1999.
 Founders Park in Purdue University. West Lafayette, Indiana, September 21, 1999.
 Wetherill Laboratory of Chemistry at Purdue University, West Lafayette IN, 20 June, 1999.
 Brown Laboratories of Chemistry at Purdue University, West Lafayette IN, 21 June, 1999.
 Fountain of Purdue University Mall. West Lafayette, Indiana, September 21, 1999.
 Purdue University Mall during afternoon hours. West Lafayette, Indiana, September 21, 1999.
 Purdue University Hall and Recitation Building. West Lafayette, Indiana, March 10, 1998.
 Purdue University Mall and Electrical Engineering Building. West Lafayette, Indiana, September 26, 1999.
 Remains of a fan (?) and books after a fire in the theoretical chemistry lab of Purdue University at Memorial Day. West Lafayette, Indiana, June 1, 1999.
 View of Purdue University Mall from the second floor of Electrical Engineering Building. West Lafayette, Indiana, September 21, 1999.
 A burned desk in the theoretical chemistry lab (there was a coffee pot?) after a fire at Memorial Day. Purdue University, West Lafayette, Indiana, June 1, 1999.
 Burned part of the theoretical chemistry lab (there was a bookshelf) after a fire at Memorial Day. Purdue University, West Lafayette, Indiana, June 1, 1999.
 A grey squirrel gnawing a nut on its home range near Mechanical Engineering Building. Purdue University, West Lafayette, Indiana, October 1, 1999.
 Jesse Hall (administration building). University of Columbia in Missouri, October 23, 1999.
 A lecture of Sabre Kais Phase transitions and critical phenomena for electronic structure of atoms and molecules (?) at internal meeting of the quantum chemistry group of Purdue University. West Lafayette, Indiana, September 21, 1999.
 Pablo Nigra, Qicun Shi, Stephen Belair, Imad Ladadwa and Ricardo A. Sauerwein ready to listen a lecture of S. Kais at internal meeting of the quantum chemistry group of Purdue University. West Lafayette, Indiana, September 21, 1999.
 Qicun Shi explains to Sabre Kais correlation effects in scattering of an electron on lithium-like atom with a variable nuclear charge slightly above two after a lecture of Imad Ladadwa about ionization cross sections at internal meeting of the quantum chemistry group. Purdue University, West Lafayette, Indiana, October 1, 1999.
 - Purdue University (Dallas - West Lafayette, November 10 - 22, 1997)
 - Purdue University (Dallas - West Lafayette, November 10 - 22, 1997)
 - Purdue University (Dallas - West Lafayette, November 10 - 22, 1997)
 Sabre Kais and Qicun Shi discuss electronic shell structure and correlations in scattering of an electron on lithium-like atom with a variable nuclear charge slightly above two after a lecture of Imad Ladadwa about ionization cross sections at internal meeting of the quantum chemistry group. Purdue University, West Lafayette, Indiana, October 1, 1999.
 - Purdue University - Chemical Department (Dallas - West Lafayette, November 10 - 22, 1997)
 Fountain of Purdue University Mall. West Lafayette, Indiana, March 10, 1998.
 - Purdue University - Chemical Department (Dallas - West Lafayette, November 10 - 22, 1997)
 - Purdue University - Chemical Department (Dallas - West Lafayette, November 10 - 22, 1997)
 - Happy Hollow Park in West Lafayette 12/24/99 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 - Happy Hollow Park in West Lafayette 12/24/99 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 - Happy Hollow Park in West Lafayette 12/24/99 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 - Happy Hollow Park in West Lafayette 12/24/99 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 - Happy Hollow Park in West Lafayette 12/24/99 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 - Happy Hollow Park in West Lafayette 12/24/99 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 Purdue University Mall and Bell Tower. West Lafayette, Indiana, February 27, 1998.
 - Wabash River in West Lafayette 12/24/99 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 - Ross Hills Park near Lafayette IN 12/18/99 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 - Ross Hills Park near Lafayette IN 12/18/99 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 - Trail from Lafayette to Battle Ground 1/1/00 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 - Trail from Lafayette to Battle Ground 1/1/00 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 - Trail from Lafayette to Battle Ground 1/1/00 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 - Trail from Lafayette to Battle Ground 1/1/00 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 - Trail from Lafayette to Battle Ground 1/1/00 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 - Trail from Lafayette to Battle Ground 1/1/00 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 Purdue University Memorial Union from State Street. West Lafayette, Indiana, March 10, 1998.
 Quantum chemistry group of Purdue University (Qicun Shi, Pablo Nigra, Jack Yang, Stephen Belair, Sabre Kais, Aaron Stanton) in front of "King Buffet" restaurant after $8 seafood dinner. Lafayette, Indiana, April 30, 1999.
 - West Lafayette Nov. 26 - Dec. (West Lafayette, November 26, 1998 - January 3, 1999)
 - West Lafayette Nov. 26 - Dec. (West Lafayette, November 26, 1998 - January 3, 1999)
 - West Lafayette Nov. 26 - Dec. (West Lafayette, November 26, 1998 - January 3, 1999)
 - West Lafayette Nov. 26 - Dec. (West Lafayette, November 26, 1998 - January 3, 1999)
 - West Lafayette Nov. 26 - Dec. (West Lafayette, November 26, 1998 - January 3, 1999)
 - West Lafayette Nov. 26 - Dec. (West Lafayette, November 26, 1998 - January 3, 1999)
 - West Lafayette Nov. 26 - Dec. (West Lafayette, November 26, 1998 - January 3, 1999)
 - West Lafayette Nov. 26 - Dec. (West Lafayette, November 26, 1998 - January 3, 1999)
 - West Lafayette Nov. 26 - Dec. (West Lafayette, November 26, 1998 - January 3, 1999)
 - West Lafayette Nov. 26 - Dec. (West Lafayette, November 26, 1998 - January 3, 1999)
 - West Lafayette Nov. 26 - Dec. (West Lafayette, November 26, 1998 - January 3, 1999)
 - West Lafayette Nov. 26 - Dec. (West Lafayette, November 26, 1998 - January 3, 1999)
 - West Lafayette Nov. 26 - Dec. (West Lafayette, November 26, 1998 - January 3, 1999)
 - West Lafayette Nov. 26 - Dec. (West Lafayette, November 26, 1998 - January 3, 1999)
 - West Lafayette Nov. 26 - Dec. (West Lafayette, November 26, 1998 - January 3, 1999)
 - West Lafayette Nov. 26 - Dec. (West Lafayette, November 26, 1998 - January 3, 1999)
 - Patriotic concert in West Lafayette, Purdue campus 7/4/98 (Lafayette, May 24 - July 12, 1998)
 - Patriotic concert in West Lafayette, Purdue campus 7/4/98 (Lafayette, May 24 - July 12, 1998)
 - Patriotic concert in West Lafayette, Purdue campus 7/4/98 (Lafayette, May 24 - July 12, 1998)
 Pablo Serra and Huan Pablo Neirotti at a dinner in a restaurant near Purdue University. West Lafayette, Indiana, February 26, 1998.
 - Purdue University campus Sept. 28, 29 (Lafayette, September 12 - 29, 1998)
 - The lab in the Department of Chemistry of Purdue University Apr. 25, 28 (Lafayette, April 5 - 28, 1998)
 - Purdue University campus Sept. 28, 29 (Lafayette, September 12 - 29, 1998)
 - Purdue University campus Sept. 28, 29 (Lafayette, September 12 - 29, 1998)
 - The lab in the Department of Chemistry of Purdue University Apr. 25, 28 (Lafayette, April 5 - 28, 1998)
 - The lab in the Department of Chemistry of Purdue University Apr. 25, 28 (Lafayette, April 5 - 28, 1998)
 - Purdue University campus Sept. 28, 29 (Lafayette, September 12 - 29, 1998)
 - Purdue University campus Sept. 28, 29 (Lafayette, September 12 - 29, 1998)
 Carrolton Boulevard in West Lafayette IN, January 3, 1999.
 Marilyn Avenue in West Lafayette IN, January 3, 1999.
 - Purdue University 8/13/98 - The lab in the Department of Chemistry 9/1/98 (Lafayette, July 12 - September 1, 1998)
 Statler Hall (hotel administration) of Cornell University. Ithaca, New York, December 8, 2005
 Golden Dome (administration building) at the University of Notre Dame. South Bend, Indiana, May 21, 1999.
 - Final banquet at Midwest Theoretical Chemistry Conference in Purdue University 5/23/98 (Indiana and Lafayette, May 15 - 24, 1998)
 - Final banquet at Midwest Theoretical Chemistry Conference in Purdue University 5/23/98 (Indiana and Lafayette, May 15 - 24, 1998)
 - Final banquet at Midwest Theoretical Chemistry Conference in Purdue University 5/23/98 (Indiana and Lafayette, May 15 - 24, 1998)
 - Final banquet at Midwest Theoretical Chemistry Conference in Purdue University 5/23/98 (Indiana and Lafayette, May 15 - 24, 1998)
 - Final banquet at Midwest Theoretical Chemistry Conference in Purdue University 5/23/98 (Indiana and Lafayette, May 15 - 24, 1998)
 - Happy Hollow Park in West Lafayette 12/15/99 (Chicago, Ann Arbor MI, Lafayette IN, December 4 - 15, 1999)
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