Invited plenary talk at the String Phenomenology 2011 conference, by Invitation (University of Wisconsin, Madison, 2011)
Invited plenary talk at the StringVac 2011 conference Pusan, Korea 5-7 September 2011, by Invitation (StringVac 2011, 2011)
Invited plenary talk "String Phenomenology 2010", Paris, France, 5-9 July 2010, by Invitation (Ecole Polytechnique, Paris, 2010)
Invited talk presented at the KITP workshop on Strings at the LHC and in the Early Universe, by Invitation (Kavli Institute for theoretical physics, 2010)
Invited talk at Corfu Summer Institute 2010, by Invitation (Corfu Summer Institute, 2010)
Invitattion to speak at the GGI workshop on new perspectives in string theory, by Invitation (Galileo Galilei Institute, 2009)
Invited talk at Corfu Summer Institute 2009, by Invitation (Corfu Summer Institute, 2009)
Invited plenary talk "String Phenomenology 2009", Warsaw, Poland, 15-19 June 2009, by Invitation (Warsaw university, 2009)
Invited talk presented at the UKBSM08 workshop, by Invitation (University of Sussex, 2008)
Invited talk presented at the second international workshop on quantum trajectories, by Invitation (Los Alamos National Lab, 2008)
Invited plenary talk "String Phenomenology 2007", Rome, Italy, 4-8 June 2007;, by Invitation (SP2007, 2007)
invited plenary talk ``String Phenomenology 2006", Santa--Barbara California, 29
August 2006., by Invitation (KITP UCSB, 2006)
Invited talk at the fourth international conference on quantum theory and symmetries, by Invitation (Bulgaria academy of sciences, 2005)
invited plenary talk ``String Phenomenology 2005'', Munich, Germany, 13--18 July 2005;, by Invitation (String Phenomenology 2005, 2005)
Invited plenary talk ``String theory in the real world'', Columbus Ohio, 7-9 Novemver
2005;, by Invitation (Ohio State University , 2005)
Invited plenary talk ``PLANCK04'', Bonn, Germany 23--28 May 2004;, by Invitation (PLANCK04, 2004)
invited plenary talk ``String Phenomenology 2004'', Ann--Arbor, Michigan, 1--6 August 2004;, by Invitation (University of Michigan, 2004)
invited plenary talk ``PLANCK03'', Madrid, Spain 26--31 May 2003;, by Invitation (PLANCK03, 2003)
Invited plenary talk ``SUGRA 20 conference'', NE Univeristy, Boston MA, 17--21 March
2003;, by Invitation (Northeastern Univeristy, 2003)
invited plenary talk ``Beyond the Desert 03'', Castle Ringberg, Tegernsee, Germany 9--14 June
2003;, by Invitation (Beyond the Desert 03, 2003)
invited plenary talk at the ``Beyond the Desert 02 conference'', Oulu, Finland 2--7 June 2002., by Invitation (Beyond the Desert 02 conference, 2002)
invited plenary talk at ``Non--linear quantum mechanics'', King's College,
London, 11-14 Sep 2002, by Invitation (King's college, 2002)
Invited plenary talk "EU-AEFNET midterm Meeting'', Paris France, 11-14 Dec 2002;, by Invitation (EU-AEFNET network, 2002)
Invited plenary talk at the ``PatiFest'', College Park MD, 3--4 May 2002;, by Invitation (University of Maryland, 2002)
Invited talk "EU-AEFNET Workshop Meeting'', Corfu Greece, 10--12 September 2001;, by Invitation (EU-AEFNET network, 2001)
invited plenary talk at LPTH ENS XXXIIth Summer Institute, by Invitation (Ecole Normal Superier, Paris, 2001)
Invited plenary talk at the ``EUROGDR Workshop Meeting'', Durham UK, 18--20 April 2002;, by Invitation (EU-AEFNET network, 2001)
Examination Roles
King's College (University of London), PhD (2010)
Other Administrative or Committee Roles
Theoretical Physics divisional director of graduate studies.