People

Present

Graduate Students

Post-docs

GRADUATE STUDENT & POST-DOC ALUMNI

VISITING SCHOLARS (PAST & PRESENT)

Collaborating Undergraduates, Visiting PhDs, Post-Bacs, K-12 School students/teachers:

Abrahmson, Ken, Post-Bach from Penn (2012-15)
Aggarwal, Manoj, PENN (1996)
Aguirre, Juan, Unidad de Medicina y Cirugia Experimental (Spring 2011)
Alam, Ishtiaq, PENN (1997-98)
Allen, Todd, Undergraduate at University of Pennsylvania, Oct. 2016 – August 2017
Arpaci, Sevde, Undergraduate, Bogazici University, Turkey (June-August 2011)
Atkins, Carl, University of Sussex (visiting undergraduate physics major); Summer 2016
Banerjee, Soumendra, Cornell University (Summer 2001)
Barabé, Blandine, Undergraduate from Grenoble INP – Phelma, France, (Summer 2014)
Barron, Seth (Lower Moreland High School Teacher, NSF RET Summer 2007)
Bartel, John, PENN (2008)
Benjamin –Fernandez, Gabriel, Swarthmore College (NSF REU Student, 1995)
Bergey, Daniel, PENN (Summer 2002)
Begum, Sumaiya, High School Student (Sun Valley High School, PA), 07/2017-08/2017
Boehm, Joshua, Case Western Reserve University (Summer 2001)
Brown, Zachery, undergraduate at Saint Joseph’s University, supervised with Piotr Habdas. (2015-16)
Bruce, Yaa, Harvard (Summer, 2002)
Burns, Roseann, Upper Darby High School (High School Teacher); Summer 2016
Burwasser, Lee, PENN undergrad, (Summer 2009)
Chaby, Lauren, Clarkson University (Summer 2008)
Chung, Chuck, PENN (1992-93)
Churgin, Matt, Research Rotation (Summer 2011)
Colagreco, Matt, West Chester University Physics Undergraduate (Summer 2010 & 2011)
Combs, Rachel,  High School Teacher, Crefeld High School, Summer 2017
Cope, Brian J., UPENN (Summer 2000/Spring 2001)
Courtland, Rachel, PENN (Spring/Summer 2000)
D’Souza, Angela, Graduate Student at Stonybrook University (2011-2015)
Dedeaga, Cem, PENN (2007-08 academic year)
DeSouza, Steven (High School), (NASA SHARP+/QEM Minority Summer Prog., 1996)
Devany, John Mike, Undergraduate, St. Joseph’s University (Summer 2011)
Devarajan, Mahima, Case Western University, Summer 2017
Dirnbach, Boris (Creative and Performing Arts High School Teacher) NSF RET, 1999
Dong, Connie, undergraduate from University of Minnesota. (Summer 2015, REU)
Durduran, Turgut, PENN, (1996-97)
Fazeli, Pouneh, Harvard, (Summer 1995)
Fletcher, Sarah, PENN (2007)
Flynn, Daniel, Undergraduate, St. Joselph’s University (Summer 2011)
Foster, Ellen, Vassar College, Clinical Research Coordinator (2008-2011)
Freifelder, David, Penn Undergraduate (2015)
Friedman, Daniel, PENN undergraduate (Spring/Summer, 2014)
Ganti, Raman, Undergraduate, PENN, (2012-13 )
Georgiades, Nikos, PENN, (1990-91) (Senior Thesis)
Gladney, Vanjessica, Penn undergraduate (2012-13)
Gorce, Lauriane, Masters student, Mines ParisTech University in France,  Summer 2018
Gossin, Sean, West Chester University (Summer, 2008 & 2009)
Green, Audrey, Undergraduate from Rutgers University (Summer 2013)
Griffiths, Kaitlin, undergraduate from Temple University, supervised with Dan Licht. (2015-16)
Grimshaw, Bob, PENN (1999)
Gross, Adam, PENN undergraduate (2014 – 2016)
Gruber, Josh, PENN Vagelos Scholar, (Spring/Summer 2000 – 2001)
Grundy, Sarah, Clinical Research Coordinator (2014)
Guha, Anubhav, High School Student at Horace Greely HS, Chappaqua, NY (2011-12)
Gunderson, Ross, (K-12 Teacher at Delaware County Christian School in Newtown Square, PA) Summer (2015)
Ha, Quoc Trung Nigel Van, Swarthmore College, (NSF REU Student Summer 2018)
Hance, Daltan, Clinical Research Coordinator, (2007-2010)
Hanson, Kasey, NSF-REU student from Alfred University (Summer 2013)
Haugh, Michael, PENN (2004-05)
Hong, Chan, University of Pennsylvania, Summer 2018
Hu, Zhensong, Undergraduate at University of Pennsylvania, Sept. 2016 – May 2017
Hudson, Emily R., undergraduate from Swarthmore University (Summer 2015)
Hughes, Earl, undergraduate at Temple University. (Summer 2015)
Imaizumi, Daniel, New College , U.S. Florida , 1997
Iwanicki, Martin, Undergraduate, St. Joseph’s University (Summer 2011-13)
Jahnavi, Jharna, Haverford University, Summer 2018
Janowski, Richard, undergraduate from West Chester University, supervised with Kevin Aptowicz. (Summer 2015)
Jeong, Min Young, Penn Undergraduate, (Summer 2014)
Jiang, Jane, Queen’s College, City University of New York (undergraduate); Summer 2016
Jones, Robert, PENN (1993-94)
Jowdy, Jessica M., Swarthmore College, REU program (NSF), (Summer 2013)
Kallop, Jahred, PENN (Spring 2001)
Kamara, Alpha, Community College of Philadelphia (Summer 2010)
Kanatous, Jonathan, West Chester University (Summers 2007, 2008)
Kandel, Ben, PENN Bioengineering Graduate student rotation (Summer 2011)
Kane, Steve, Haverford College (1989-90)
Karastury, Clara, Northeastern University, Summer 2018
Katransik, Jaka, Warsaw, Poland, Breast Shape Profilometry, (2011-2012)
Kim, Helen, Undergraduate in Anthropology from Penn, (2012-14)
Kocaoglu, Timur, PENN, (Fall 2001)
Kolger, Angela, Grad. Student at Stonybrook University who collaborated with group (2013-16)
Kopinsky, Michael, PENN (Second Semester 2007-08 academic year)
Kosty, Jennifer, Medical Student at Penn (2011-12)
Kruger, Samuel, High School student, Friends Central School, Wynnewood, PA, (Summer 2014)
Kulkarni, Nimay, undergraduates at the University of Pennsylvania (February – Spring 2016)
Kulkarni, Akshay, Germantown Friends School (High School Student); January & Summer 2017
Laderman, Laura, Swarthmore College, w/P. Collings, June, 2012 – August, 2013
Lake, Sean, PENN (2003 – 2004)
Latka, Andrzej, Saint Joseph’s University (2007-2008)
Laurans, Charles, Yale University, 1998
Ledwith, Patrick, Germantown Academy in Fort Washington, Pa, (2013)
Ledbetter, Jared (High School), (NASA SHARP+/QEM Minority Summer Prog., 1996)
Leipold, Hannes, Undergraduate from Penn (Summer and Fall 2013)
Lemire, Dillon, student form Upper Dublin High School, (Summer 2015)
Levitt, Andrew, Univ. of Toronto (Summer 2000)
Leyman,Michael, Undergraduate from Drexel University (2011-13)
Li, Zhe, Visiting Scholar from Tianjin University, China (2013-15)
Lin,Li, Masters Student in Bioengineering at Penn (2011-2012 school year)
Liu, Jiachen, University of Pennsylvania (Master’s Student), Department of Materials Science & Engineering; 2016-17; Thesis Project: Universal scaling law of diffusions in colloidal liquids: the role of attractions
Liu, Shih-Ki, PENN (2007 – 2008) (Senior/Masters thesis)
Lobel, Sam, PENN, NSF-REU student (Summer 2013)
Lorimer, Tara, undergraduates at the University of Pennsylvania (January – May, 2015)
Luedtke, Scott, Undergraduate NSF-REU student, University of Illinois (Summer 2012)
Machielse, Bart, Penn Undergraduate, Senior Honors Thesis (2014 – 2016)
Mansbach, Rachael, Swarthmore College Phys/Computer-Sci undergrad (Summer 2010)
Margolis, Ryan, West Chester University Physics Undergraduate (Summer 2010)
Mariani, Lisa, Undergraduate, St. Joselph’s University (Summer 2011)
Martlin, Catherine, Freshman Physics/Astronomy, Swarthmore (Summer 2012)
Matteo, Joe, Lehigh University, (1997-98)
Matyas, Caitlin, (K-12 Teacher, Benjamin Rush Academy, Philadelphia PA) Summer 2015
Mawhinney, Matthew, Saint Joseph’s University undergraduate (Summer 2010)
Mayer, Julia, Undergraduate at West Chester University, (Summer 2013)
Mazumbdar, Zigurt, PENN (1998-1999)
Mazzio, Miranda Undergraduate at Saint Joseph’s University, supervised with Piotr Habdas, 2017-2018
Mburu, Sarah, Undergraduate at Cornell University, NSF-REU student (Summer 2012)
McCarthy, Kelly, Philadelphia Middle School teacher / Drexel RET program (Summer 2009)
Menga, Matthew, Temple, (NSF REU Summer Student, 2004)
Menko, Julien, Haverford College, Clinical Research Coordinator (2012-2014)
Michelman, Ariel, PENN (Spring 2000)
Minkoff, David, PENN, Optical/MRI research projects, (2007-2010)
Morano, Vincent, undergraduate at the University of Pennsylvania (September, 2015 – 2018)
Mubvuma, Tinashe (Harry), Swarthmore College Undergraduate (Summer 2012)
Muriuki, Kevin, undergraduate at the University of Pennsylvania. (October 2015 – Spring 2016)
Nag, Amrita, PENN (2009-2010)
Nashed, Samer, undergraduate from Swarthmore College, supervised with Peter Collings (March-May 2015)
Napp, John, Undergraduate, Caltech (June-September 2011)
Nieh, Edward, PENN (Summer 2008)
Nieser, Kenneth, Swarthmore College, w/P. Collings, June, 2012 – April 2013
Ogalla, Timothy, Swarthmore College, supervised with Peter Collings, Spring/Summer 2018
Olef, Per, Swarthmore College (1990-91)
O’Neill, Patrick, UC Santa Barbara, 2003
Ordonez, Nicholas Undergraduate at Stephens Institute of Technology, NSF REU Student, Summer 2017
Ortiz, Gabriel A. Calderon, Undergraduate from University of Puerto Rico, (Summer, 2014)
Ortiz, Luis R. Rodriguez, Undergraduate, University of Puerto Rico (Summer 2011)
Osborn, Matthew, University of Pennsylvania, Undergrad. in Biochemistry Department (2016)
Otte, Michelle, undergraduate from Lockhaven University. (Summer 2015)
Padawer, Jonah,  Visiting Scholar (Substitute Teacher for Philadelphia school district), 2018-19
Palmer, Daniel M., Undergraduate from Swarthmore College (Summer 2014)
Parakh, Priyanka (PENN/SEAS, Fall 2009)
Parenzan, Tyler, K-12 Teacher, Foundation Collegiate Academy, Summer 2018
Parra, Sebastian Hurtado, Undergraduate at Saint Joseph’s University, (2014)
Peng, Anthony, Cornell (NSF Summer REU Student, 2002)
Pinter, Eric, PENN Electrical Engineering Undergraduate (Spring/Summer 2010)
Puranmalka, Raghav, PENN (2008-2009)
Rajput, Avinash, PENN (2008-2009)
Regan, Margaret, Swarthmore College, w/P. Collings, June, 2012 – August 2013
Rochlis, Jennifer, Mt. Holyoke College 1993 (NSF MRL Summer student)
Rojas, Enrique, PENN (Summer 2002)
Rouff, Andrew, Undergraduate from Union College, (May-August 2013)
Rouke, Jennifer, PENN, (1992-93) (Senior Thesis)
Rucker, Dakara, PENN (1997-99)
Ryan, Michael, Undergraduate at West Chester University, (Summer 2013, 2014)
Sayler, Elaine, PENN (May 2008-Jan. 2009)
Schenkel, Steve, PENN Physics Undergrad (2009-14)
Schroeder, Lee, PENN, 1995-96 (Senior Thesis)
Schwab, Peter, PENN undergrad (March 2010-2014)
Shah, Khushali, High School Student from Detroit, MI (Summer 2011)
Simi, Andrea, undergraduates at the University of Pennsylvania (February – Spring 2016)
Sinton, Seelig, PENN (1998)
Smith, Anthony (High School), Philadelphia (1992)
Sorenson, Eric, Friend’s Central, High School (Spring/Summer 2009)
Su, Chang, undergraduates at the University of Pennsylvania (January – May, 2015)
Sue-Wah-Sing, Christopher Rajiv, Rowan University, Summer 2018
Szabo, Thad, PENN (1992-93)
Tan, Zuojun, Visiting Scholar from Huazhong Agricultural University, China (2013-14)
Taylor, Jesse (Calvin College) NSF REU student, Summer 2006
Thakker, David, PENN, 1998
Thames, Alex, Lower Merion High School (Summer 2010); Penn State (Summer 2013)
Thorne, Nathaniel, Undergrad. from University of the Sciences (Summer 2011)
Toussant, Kimani, PENN, (Summer, 1993)
Tu, Ran, Juniata College, NSF REU student, (Summer, 2005)
Tzeng, Shih-Yu, National Cheng Kung University (NCKU), Taiwan, (2014-15)
Vemuri, Anand (Cherry Hill High School, Summer 2007)
Vianna Barbosa, Rodrigo de Castro, Toulouse (France) undergraduate (Summer 2010)
Vishwasrao, Harsh, PENN, (1996-97)
Voet, Doug, PENN, 1995-96 (Senior Thesis)
Vora, Patrick, Penn PhD student, Blood Flow Monitoring (Fall 2011)
Wagenborg, Bill, J. Newlin Fell School in South Philadelphia (Summer 2008, MS Integrated Sci.)
Wang, Detian, Visiting Scholar from Institute of Fluid Physics, Sichuan, China (2013-15)
Warren, Michael (Vagelos Scholar, PENN) 2005-2007
Wayne, Elizabeth (McNair Scholar Penn) 2007-09)
Weaver, Janet, William & Mary (Summer, 1993)
Winters, Maddie, Guilford College, Clinical Research Coordinator (2011-2013)
Wong, Derek, Haverford College, (1996-97)
Woods, Serena, Norfolk State University (Summer 2008)
Wu, Amy, PENN (NSF REU Students, June-Aug, 2001)
Xie, Long (Darren), Biomedical Engineering Masters student from Penn (2012-13)
Xu, Boping, University of Pennsylvania (Master’s Student), Department of Bioengineering; 2015-17; Thesis Project: Effects of different anesthetics on cerebral blood flow response to functional activation probed by laser speckle contrast imaging
Yesypenko, Anna, High School, Philadelphia, (Summer 2013)
Yevick, Hannah, PENN (2007-08, Senior Thesis Project)
Yu, Jiajia (2016), Undergraduate at College of Power Engineering, Chongqing University, China. Soft Matter Project: New colloidosomes stabilized by liquid droplets
Zaremba, Jeff, PENN, Vagelos Scholar (2004 – 2005)
Zemany, Laura, Harvard, Harvard, 1995 (NSF MRL Summer Student, and paper co-authorship)
Zhai, Xingda, Undergraduate at Swarthmore (mostly Summer 2011)
Zhang, Neil, Lower Merion High School (Summer 2009)
Zhang, Xingyu (Alex), Undergraduate from Swarthmore (Summer and Fall Semester, 2011)
Zhang, Yikang, Undergraduate from Peking University (PKU), China, (Summer 2017). Summer Thesis: Dynamic heterogeneity, in colloidal liquids with attractive interactions.
Zhang, Yukuan, Lower Merion High School student (Summer 2010)
Zhou, Bo, PENN (2004)
Maria Zuckerman (High School), Philadelphia (1992)

Senior Collaborators (PAST & PRESENT)

Ahmed Alsayed, Solvay, Bristol PA
Kevin Aptowicz, Dept. of Physics, West Chester University
Paulo Arratia, MEAM, University of Pennsylvania
Simon Arridge, University College London, UK
Fred Azar, Siemens Corporate Research
Ramani Balu, Department of Neurology, University of Pennsylvania
David Boas, Department of Bioengineering, Boston University
Alexei Borodin, Department of Mathematics, MIT
Kenneth M. Brady, Department of Anesthesiology, Baylor College of Medicine
Don Buerk, Hospital at the University of Pennsylvania
Mark Burnett, Hospital at the University of Pennsylvania
Theresa Busch, Hospital at the University of Pennsylvania
Larry Campbell, Hobart Williams College
Nils Carlson, OCG Ventures, LLC
Britton Chance, Dept. Biochemistry and Biophysics, Penn
Steve Chu, Stanford University
Regine Choe, University of Rochester
Peter Collings, Swarthmore College
Diego Contreras, Hospital at the University of Pennsylvania
John Crocker, Dept. of Chemical & Biochemical Engineering, University of Pennsylvania
Brian Czerniecki, Hospital at the University of Pennsylvania
Kris Dahl, Depts. of Chemical/Biomedical Engineering, Carnegie Mellon University
Olivier Dauchout, ESPCI, France
Angela DeMichele, Hospital at the University of Pennsylvania
John Detre, Hospital at the University of Pennsylvania
Dennis Discher, Dept. of Chemical & Biochemical Engineering, University of Pennsylvania
Chaitanya R. Divgi, Hospital of the University of Pennsylvania
Remi Dreyfus, CNRS/Solvay, Bristol PA
Turgut Durduran, ICFO, Spain
Doug Durian, Dept. of Physics & Astronomy, University of Pennsylvania
Wouter G. Ellenbroek, Eindhoven University of Technology, Netherlands
Sid Evans, Hospital of the University of Pennsylvania
Chris Favilla, Hospital of the University of Pennsylvania
Michael Feldman, Hospital of the University of Pennsylvania
Leif Finkel, Dept. of Bioengineering, Penn
Jared Finlay, Hospital at the University of Pennsylvania (HUP)
John (Jack) Fischer, Dept. of Materials Science & Engineering, Penn
Tom Floyd, Stony Brook University (and Hospital)
Mark A. Fogel, Children’s Hospital of Philadelphia (CHOP)
Doug Fraker, Hospital at the University of Pennsylvania
Joe Friedberg, Hospital at the University of Pennsylvania
Kimberly P Gannon, Department of Neurology, University of Pennsylvania
Eli Glatstein, Hospital at the University of Pennsylvania
Jerry Gollub, Haverford College
Mark Goulian, Depts. of Biology and Physics & Astronomy, University of Pennsylvania
Joel Greenberg, Hospital at the University of Pennsylvania
Wenshen Guo, Hospital of the University of Pennsylvania
Piotr Habdas, Saint Joseph’s University
Steve Hahn, Hospital at the University of Pennsylvania
Yilong Han, HKUST, Hong Kong
B. Hammouda (NIST)
Paul Heiney, Dept. of Physics & Astronomy, University of Pennsylvania
Elizabeth Hillman, Columbia University
Nola Hilton, Department of Radiology, University of California, San Francisco
Robin Hochstrasser, Dept. of Chemistry, University of Pennsylvania
Larry Hough, Solvay, Bristol PA
Hallam Hurt, Children’s Hospital of Philadelphia (CHOP)
Paul Janmey, IME and Hospital of the University of Pennsylvania
Charlie Johnson, Dept. of Physics & Astronomy, Penn
M. A. (Asif) Kahn, APA Optics
Randy Kamien, Department of Physics & Astronomy, University of Pennsylvania
Charlie Kane, Dept. of Physics & Astronomy, University of Pennsylvania
Joel S. Karp, Hospital of the University of Pennsylvania
Scott Kasner, Hospital of the University of Pennsylvania
Chen Ke, Chinese Academy of Sciences, Beijing, China
Jay Kikkawa, Dept. of Physics & Astronomy, University of Pennsylvania
Cameron Koch, Hospital of the University of Pennsylvania
Andy Lau, Florida Atlantic University
Daeyeon Lee, CBE, University of Pennsylvania
William M. Lee, Hospital at the University of Pennsylvania
Anais Leproux, Beckman Laser Institute, University of California at Irvine
Daniel Licht, Children’s Hospital of Philadelphia (CHOP)
Andrea Liu, Dept. of Physics & Astronomy, University of Pennsylvania
J.C. Loudet, Univ. of Bordeaux, France
Tom Lubensky, Dept. of Physics & Astronomy, University of Pennsylvania
Anthony C. Maggs, ESPCI, France
Andrew Maidment, Hospital of the University of Pennsylvania
Amit Maity, Hospital of the University of Pennsylvania
Bruce Malkowicz, Hospital at the University of Pennsylvania (HUP)
David Mankoff, Department of Radiology, University of Pennsylvania
Lisa Manning, Syracuse University
Susan S. Margulies, Dept. Bioengineering, University of Pennsylvania
Vadim Markel, Hospital of the University of Pennsylvania
Carole L. Markus, The Sleep Center, University of Pennsylvania School of Medicine
Chandrakala (Kala) Menon, Hospital at the University of Pennsylvania
Rickson Mesquita, UNICAMP, Brazil
J. Metz, Hospital at the University of Pennsylvania (HUP)
R. Mick, Hospital at the University of Pennsylvania (HUP)
Allen Mills, University of California at Riverside
Emile Mohler III, Hospital at the University of Pennsylvania
Frank Moscatelli, Swarthmore College
Tom Mossberg, University of Oregon
Mike Mullen, Hospital of the University of Pennsylvania
Chris Murray, Chemistry and MSE, Penn
Ken Nagamine, KEK/University of Tokyo, Japan
Sid Nagel, University of Chicago
Phil Nelson, Dept. of Physics & Astronomy, University of Pennsylvania
M. Nieto-Vesperinas, Universidad Autonoma de Madrid, Spain
Shoko Nioka, Johnson Foundation, Penn/HUP
Goro Nishimura, Hokkaido University, Japan
Maurizio Nobili, Montpellier University, France
Deva Pattanayak, Vishay Intertechnology, Inc.
Keith Paulson, Thayer School of Engineering, Dartmouth College
Dave Pine, New York University
Brian Pogue, Thayer School of Engineering, Dartmouth College
Wilson Poon, University of Edinburgh, UK
Gabriel Popescu, Beckman Institute, University of Illinois
B. Pouligny, CNRS, Ctr Rech Paul Pascal, F-33600 Pessac, France
Mary Putt, Hospital at the University of Pennsylvania
Harry Quon, Johns Hopkins University (and Hospital)
Nimi Ramanujam, Duke University
J. Ripoll, Institute of Electronic Structure and Lasers, FORTH, Crete
Robert (Bob) Rogers, University of Delaware
Darren Roblyer, Department of Bioengineering, Boston University
Mark Rosen, Hospital at the University of Pennsylvania
Lewis Rothberg, University of Rochester
Brian Salzberg, Hospital at the University of Pennsylvania
Michael Schindler, ESPCI, France
Mitch Schnall, Hospital at the University of Pennsylvania
John Schotland, University of Michigan
Martin Schwieger, University College London, UK
Chandra (Sandy) Sehgal, Hospital at the University of Pennsylvania
Yair Shokef, Tel-Aviv University, Israel
M. C. Simon, Hospital of the University of Pennsylvania
Holger Stark, Technische Universität Berlin, Germany
Kathleen Stebe, CBE, University of Pennsylvania
Maria Tamargo, CCNY
Egnacio Tapia, The Sleep Center, University of Pennsylvania School of Medicine
Julia Tchou, Hospital of the University of Pennsylvania
Glenn Tellis, Misericordia University, PA
Bill Theis, Naval Research Laboratory, China Lake, CA
Mike Therien, Currently, Department of Chemistry, Duke University
John Thomas, North Carolina State University
Harry W.K. Tom, University of California at Riverside
Salvatore Torquato, Department of Chemistry, Princeton University
Bruce Tromberg, University of California at Irvine
Valery Tuchin, Saratov State University, Russia
Sergei Vinogradov, Hospital of the University of Pennsylvania
Patrick Vora, Department of Physics & Astronomy, Penn
Patrick Warren, Unilever
Felix Wehrli, Hospital of the University of Pennsylvania
Dave Weitz, Harvard University
Diederik Wiersma, University of Florence, Italy
Pierre Wiltzius, University of California, Santa Barbara
Karen Winey, Dept. of Materials Science & Engineering, University of Pennsylvania
Shu Yang, Department of Materials Science and Engineering, University of Pennsylvania
Peter Yunker, Georgia Institute of Technology
Zexin Zhang, Suzhou University, Suzhou, China
Gang Zheng, Department of Medical Biophysics, University of Toronto
Qing Zhu, University of Connecticut
Tim Zhu, Hospital at the University of Pennsylvania
D. Zimnikov, Saratov State University, Russia