Contributors

Name Publications
Bitadze, Alexander 309
Agapopoulou, Christina 308
Gomes, Agostinho 287
Gkougkousis, Evangelos Leonidas 275
Schmitt, Stefan 275
WANG, Renjie 240
Zaffaroni, Ettore 237
Aguilar Saavedra, Juan Antonio 235
Meshreki, J. K.R. 235
Pizzimento, Luca 235
Verbytskyi, Andrii 235
Hyrych, S. 235
Khoda, Elham E. 235
Achkar, B. 235
Krieter, F. 235
Steinhebel, Amanda L. 235
Adorni, S. 235
Stankaityte, M. 235
Rustige, L. 234
Govender, Nicolin 233
Follega, Francesco M. 233
Chargeishvili, K. B. 232
GONZALEZ DE LA HOZ, SANTIAGO 232
Alfonsi, A. 232
Maerker, M. 232
Canesse, Auriane 232
Nechansky, F. 232
Laurier, Alexandre 232
Arling, Jan Hendrik 232
Ogrodnik, Agnieszka 232
Oerdek, S. 232
Maniatis, I. M. 232
Marantis, Alexandros 232
Wölker, R. W. 232
Kurova, A. 232
Rummler, A. 232
Lyubushkina, Tatiana V. 232
Meshkov, O. 232
Gravili, F. G. 232
Zakareishvili, Tamar 232
Nindhito, Herjuno R. 232
Stanislaus, Beojan 232
Lösle, A. 232
Petukhova, Krystsina 232
Horyn, L. A. 232
Reikher, D. 232
Geanta, Andrei Alexandru 232
Santpur, S. Neha 232
Takeva, E. P. 232
Dyckes, G. I. 232
Borecka-Bielska, H. M. 232
Vergis, C. 232
Papadatos, Costa 232
Zoch, K. 232
Arcangeletti, Chiara 232
Renda, Michele 232
Veen, M. J. 232
Moskalets, T. 232
Khandoga, Mykola K. 232
Gallardo, G. E. 232
Yexley, Melissa R. 232
Rovelli, Giulia 232
Becherer, F. 232
Vannicola, Damiano 232
Cieśla, krzysztof 232
Gessinger-Befurt, P. 232
Pezzotti, Lorenzo 232
Adamek, L. 232
Smykiewicz, A. 232
Emerman, Alexander 232
Abeling, Kira 232
Bjorke, K. 231
MORENO LLACER, MARIA 231
Hamdaoui, H. 231
Beisiegel, F. 231
Deiana, Allison Mc Carn 231
Walbrecht, Verena M. 231
Tosciri, C. 231
Hankache, R. 231
Hommels, L. B.A.H. 231
Komárek, Tomáš 231
Swirski, T. 231
Errenst, M. 231
Francescato, Simone 231
SANTRA -, ARKA 231
Barsov, S. 230
CASTILLO GIMENEZ, M VICTORIA 230
Rej, Abhijnan 230
Stamenkovic, M. 230
Laudrain, Arthur P.B. 230
Boye, D. 230
Hönle, A. 230
Pasuwan, Patrawan 230
Tarna, Grigore 230
Dubovsky, M. 230
Junggeburth, Johannes J. 230
Zorbas, T. G. 230
Heidegger, K. K. 230
Schillaci, Z. M. 230

Collaboration Research Centres

Name Type Country Publications
Technical University of Dortmund University Germany 334
European Organization for Nuclear Research Research Centre Switzerland 334
University of Chinese Academy of Sciences University China 334
University of Cambridge University United Kingdom 333
University of Manchester University United Kingdom 333
University of Oxford University United Kingdom 333
University of Edinburgh University United Kingdom 333
University of Warwick University United Kingdom 333
Heidelberg University University Germany 333
University of Birmingham University United Kingdom 333
University of Glasgow University United Kingdom 333
Uppsala University University Sweden 333
AGH University of Science and Technology University Poland 333
University of Liverpool University United Kingdom 333
University of Bonn University Germany 333
Tsinghua University University China 333
University of Michigan–Ann Arbor University United States 333
Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering Research Centre Romania 333
Laboratori Nazionali di Frascati Research Centre Italy 333
INFN Sezione di Bologna Research Centre Italy 333
INFN Sezione di Genova Research Centre Italy 333
Istituto Nazionale di Fisica Nucleare Research Centre Italy 332
Pierre and Marie Curie University University France 332
Universidade Federal do Rio de Janeiro University Brazil 332
INFN Sezione di Milano Research Centre Italy 331
INFN Sezione di Pisa Research Centre Italy 329
INFN Sezione di Roma II Research Centre Italy 324
University of Milan University Italy 323
University of Rome Tor Vergata University Italy 322
University of Pisa University Italy 321
University of Bologna University Italy 320
University of Genoa University Italy 320
University of Paris-Saclay University France 320
Centre de Physique des Particules de Marseille Research Centre France 297
Universidad Nacional de Colombia University Colombia 270
Rutherford Appleton Laboratory Research Centre United Kingdom 267
Lund University University Sweden 236
Universidad Autónoma de Madrid University Spain 235
Universidad de Granada University Spain 235
Institut de Fisica D'altes Energies Research Centre Spain 235
Dresden University of Technology University Germany 235
Charles University in Prague University Czechia 235
Waseda University University Japan 235
Università di Udine University Italy 235
Queen Mary University of London University United Kingdom 235
Royal Holloway University of London University United Kingdom 235
Royal Institute of Technology University Sweden 235
Transylvania University of Brașov University Romania 235
Aristotle University of Thessaloniki University Greece 235
National and Kapodistrian University of Athens University Greece 235
Ludwig Maximilian University of Munich University Germany 235
University of Adelaide University Australia 235
University of Sydney University Australia 235
National Technical University of Athens University Greece 235
National Centre of Scientific Research Demokritos Research Centre Greece 235
University of Oslo University Norway 235
Jagiellonian University University Poland 235
University of Bern University Switzerland 235
University of Innsbruck University Austria 235
Johannes Gutenberg University of Mainz University Germany 235
University of Siegen University Germany 235
University of Freiburg University Germany 235
University of Belgrade University Serbia 235
University of Amsterdam University Netherlands 235
Ankara University University Turkey 235
University of Göttingen University Germany 235
Humboldt University of Berlin University Germany 235
Technion – Israel Institute of Technology University Israel 235
Czech Technical University in Prague University Czechia 235
University of Ljubljana University Slovenia 235
University of Pavia University Italy 235
Universidade de Coimbra University Portugal 235
University of Wuppertal University Germany 235
University of Cape Town University South Africa 235
Università de Roma La Sapienza University Italy 235
Pontificia Universidad Católica de Chile University Chile 235
University of Bergen University Norway 235
University of Würzburg University Germany 235
Roma Tre University University Italy 235
Université de Genève University Switzerland 235
University of Giessen University Germany 235
University of Trento University Italy 235
Universidade de Lisboa University Portugal 235
Universidade do Minho University Portugal 235
Stockholm University University Sweden 235
University of Sheffield University United Kingdom 235
Universidade de São Paulo University Brazil 235
University of the Witwatersrand University South Africa 235
University of Sussex University United Kingdom 235
Tel Aviv University University Israel 235
Universidad Técnica Federico Santa María University Chile 235
Shanghai Jiao Tong University University China 235
University of Tsukuba University Japan 235
University of Toronto University Canada 235
Michigan State University University United States 235
University of Alberta University Canada 235
University of British Columbia University Canada 235
McGill University University Canada 235
University of Montreal University Canada 235
Iowa State University University United States 235
Carleton University University Canada 235
University of Washington University United States 235
York University (Canadá) University Canada 235
University of Pittsburgh University United States 235
University of Pennsylvania University United States 235
Duke University University United States 235
University of Tokyo University Japan 235
Shandong University University China 235
Nagoya University University Japan 235
Kobe University University Japan 235
Tokyo Institute of Technology University Japan 235
Stony Brook University University United States 235
Harvard University University United States 235
Nanjing University University China 235
University of Victoria University Canada 235
Simon Fraser University University Canada 235
University College London University United Kingdom 235
University of Texas at Austin University United States 235
University of Arizona University United States 235
New York University University United States 235
University of California, Santa Cruz University United States 235
University of Iowa University United States 235
University of Oregon University United States 235
University of Chicago University United States 235
Kyushu University University Japan 235
Argonne National Laboratory Research Centre United States 235
University of Johannesburg University South Africa 235
University of Gaziantep University Turkey 235
University of California, Irvine University United States 235
University of New Mexico University United States 235
High Energy Accelerator Research Organization Research Centre Japan 235
University of Oklahoma University United States 235
Ohio State University University United States 235
University of Texas at Arlington University United States 235
University of Texas at Dallas University United States 235
Shinshu University University Japan 235
Universidad Antonio Nariño University Colombia 235
Max Planck Institute for Physics Research Centre Germany 235
Tufts University University United States 235
SLAC National Accelerator Laboratory Research Centre United States 235
Institute of Physics, Academia Sinica Research Centre Taiwan 235
International Centre for Theoretical Physics Research Centre Italy 235
Deutsche Elektronen-Synchrotron DESY Research Centre Germany 235
Weizmann Institute of Science Research Centre Israel 235
Academy of Sciences of the Czech Republic Research Centre Czechia 235
Niels Bohr Institute Research Centre Denmark 235
TRIUMF University Canada 235
Radboud University Nijmegen University Netherlands 234
West University of Timişoara University Romania 234
Columbia University University United States 234
Universidade Federal de Juiz de Fora University Brazil 234
INFN Sezione di Napoli Research Centre Italy 234
University of Calabria University Italy 233
Oklahoma State University University United States 233
University of Massachusetts Amherst University United States 233
Indiana University Bloomington University United States 233
Grenoble Alpes University University France 233
INFN Sezione di Pavia Research Centre Italy 233
Laboratory of Instrumentation and Experimental Particles Physics Research Centre Portugal 233
Osaka University University Japan 232
Kyoto University of Education University Japan 232
INFN Sezione di Lecce Research Centre Italy 232
Tbilisi State University University Georgia 230
Boston University University United States 230
Yale University University United States 229
University of Wisconsin–Madison University United States 228
University of Illinois at Urbana Champaign University United States 227
Louisiana Tech University University United States 226
Universidade Federal de São João del-Rei University Brazil 223
Moscow State University University Russia 222
Mohamed I University University Morocco 222
Institute for High Energy Physics Research Centre Russia 222
Lawrence Berkeley National Laboratory Research Centre United States 221
Budker Institute of Nuclear Physics Research Centre Russia 221
Institute of Physics. PN Lebedev, the Russian Academy of Sciences Research Centre Russia 219
Belarusian State University University Belarus 218
Joint Institute for Nuclear Research Research Centre Russia 218
Moscow Engineering Physics Institute University Russia 218
Tomsk State University University Russia 215
Universidad de Buenos Aires University Argentina 210
University of Science and Technology of China University China 208
Institute for Theoretical and Experimental Physics University Russia 208
Polytechnic University of Bucharest University Romania 201
Universidad Andrés Bello University Chile 196
Institut National de Physique Nucléaire et de Physique des Particules Research Centre France 194
Instituto de Física Corpuscular Research Centre Spain 192
Ochanomizu University University Japan 190
Mohammed V University University Morocco 180
Nagasaki Institute of Applied Science University Japan 176
University of South Africa University South Africa 173
Universidad de Tarapacá University Chile 172
University at Albany, State University of New York University United States 170
Institució Catalana de Recerca i Estudis Avançats Research Centre Spain 156
University of Hamburg University Germany 156
Università degli Studi di Napoli Parthenope University Italy 156
Universitat Autònoma de Barcelona University Spain 155
King's College London University United Kingdom 155
University of Louisville University United States 155
Tokyo Metropolitan University University Japan 154
Hellenic Open University University Greece 153
City College of New York University United States 153
Instituto de Física Teórica Research Centre Spain 151
City University of New York University United States 149
California State University, Fresno University United States 149
Ben-Gurion University of the Negev University Israel 148
University of Naples Federico II University Italy 147
Institute for Particle and Nuclear Physics Research Centre Hungary 144
Saint Petersburg State Polytechnical University University Russia 141
Universidade Nova de Lisboa University Portugal 139
Université Hassan II de Casablanca University Morocco 136
Novosibirsk State University University Russia 134
Istanbul University University Turkey 125
Azerbaijan National Academy of Sciences Research Centre Azerbaijan 125
Laboratoire d'Annecy-le-Vieux de physique des particules Research Centre France 123
Lancaster University University United Kingdom 113
University of Melbourne University Australia 112
Brookhaven National Laboratory Research Centre United States 112
Kyoto University University Japan 112
Slovak Academy of Sciences Research Centre Slovakia 106
Institute for Nuclear Research and Nuclear Energy Research Centre Bulgaria 104
Massachusetts Institute of Technology University United States 101
University of Bristol University United Kingdom 100
Monash University University Australia 100
Rheinisch-Westfälische Technische Hochschule Aachen University University Germany 100
University of Padua University Italy 100
Imperial College London University United Kingdom 100
Università di Perugia University Italy 100
University College Dublin University Ireland 100
University of Maryland, College Park University United States 100
Centro Brasileiro de Pesquisas Físicas Research Centre Brazil 100
Kharkov Institute of Physics and Technology Research Centre Ukraine 100
National Centre for Nuclear Research Research Centre Poland 100
INFN Sezione di Bari Research Centre Italy 100
INFN Sezione di Firenze Research Centre Italy 100
INFN Sezione di Milano Bicocca Research Centre Italy 100
Eötvös Loránd University University Hungary 99
École Polytechnique Fédérale de Lausanne University Switzerland 99
Universitat de Barcelona University Spain 98
Universitat Ramon Llull University Spain 98
Universidade de Santiago de Compostela University Spain 98
University of Groningen University Netherlands 98
Pontifícia Universidade Católica do Rio de Janeiro University Brazil 98
Maastricht University University Netherlands 98
VU University Amsterdam University Netherlands 98
University of Cincinnati University United States 98
Hunan University University China 98
Central China Normal University University China 98
Syracuse University University United States 98
National Institute for Subatomic Physics Research Centre Netherlands 98
Leprince Ringuet laboratory Research Centre France 98
INFN Sezione di Cagliari Research Centre Italy 98
INFN Sezione di Ferrara Research Centre Italy 98
Max Planck Institute for Nuclear Physics Research Centre Germany 98
Wuhan University University China 97
Università della Basilicata University Italy 89
University of Milano-Bicocca University Italy 89
University of Bari Aldo Moro University Italy 89
University of Florence University Italy 89
Scuola Normale Superiore di Pisa University Italy 89
University of Cagliari University Italy 87
Università di Urbino University Italy 87
Los Alamos National Laboratory Research Centre United States 87
Enrico Fermi Center for Study and Research University Italy 87
University of Ferrara University Italy 86
Universidad Nacional Autónoma de Honduras University Honduras 85
Peking University University China 85
Lanzhou University University China 77
Okayama University University Japan 74
University of Sharjah University United Arab Emirates 72
Universidade de Brasília University Brazil 70
Universidad de Alcalá University Spain 69
Central South University University China 68
Istanbul Aydın University University Turkey 61
Alikhanyan National Laboratory Research Centre Armenia 58
Università degli Studi di Siena University Italy 52
Sofia University University Bulgaria 48
Laboratoire de l'Accélérateur Linéaire Research Centre France 46
Universidad de La Serena University Chile 43
Stanford University University United States 42
Kurchatov Institute Research Centre Russia 39
Aix-Marseille University University France 36
United Arab Emirates University University United Arab Emirates 35
New York University Abu Dhabi University United Arab Emirates 34
Universidade Federal do Triângulo Mineiro University Brazil 32
Universidade da Coruña University Spain 31
Manhattan College University United States 30
Sun Yat-sen University University China 29
CEA Saclay University France 29
University of Modena and Reggio Emilia University Italy 28
Istinye University University Turkey 26
University of California, Berkeley University United States 25
Federal Center for Technological Education Celso Suckow da Fonseca University Brazil 20
Universidade do Estado do Rio de Janeiro University Brazil 17
University of Zululand University South Africa 15
Mindanao State University – Iligan Institute of Technology University Philippines 14
University of Paris-Sorbonne University France 11
University of Georgia University United States 9
Universidad Nacional de La Plata University Argentina 6
Tomsk Polytechnic University University Russia 5
Institute for Nuclear Research Research Centre Russia 5
INFN Sezione di Trieste Research Centre Italy 5
University of Zurich University Switzerland 4
University of Rostock University Germany 4
Higher School of Economics, National Research University University Russia 4
University of Colorado Boulder University United States 4
Yandex School of Data Analysis University Russia 4
Bahçeşehir University University Turkey 3
Istanbul Bilgi University University Turkey 3
National University of Science and Technology University Russia 3
California State University Los Angeles University United States 3
Université Ibn-Tofail University Morocco 3
Institute for Scintillation Materials Research Centre Ukraine 3
Fermi National Accelerator Laboratory Research Centre United States 3
Universidad de Cantabria University Spain 2
Universidad de Oviedo University Spain 2
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas Research Centre Spain 2
Politecnico di Bari University Italy 2
Vienna University of Technology University Austria 2
Ghent University University Belgium 2
Cornell University University United States 2
Rudjer Boskovic Institute Research Centre Croatia 2
Université Libre de Bruxelles University Belgium 2
University of Trieste University Italy 2
University of Antwerp University Belgium 2
Paul Scherrer Institute Research Centre Switzerland 2
University of Southampton University United Kingdom 2
Grenoble Institute of Technology University France 2
Swiss Federal Institute of Technology in Zurich University Switzerland 2
Vilnius University University Lithuania 2
Middle East Technical University University Turkey 2
Riga Technical University University Latvia 2
Universidad de Los Andes University Colombia 2
Ain Shams University University Egypt 2
University of Turin University Italy 2
University of Cyprus University Cyprus 2
Vrije Universiteit Brussel University Belgium 2
Brandenburg University of Technology University Germany 2
University of Upper Alsace University France 2
University of Ioannina University Greece 2
University of Auckland University New Zealand 2
Brunel University London University United Kingdom 2
University of Helsinki University Finland 2
University of Colombo University Sri Lanka 2
University of Catania University Italy 2
University of Delhi University India 2
Karlsruhe Institute of Technology University Germany 2
Université Catholique de Louvain University Belgium 2
Universidade Federal do Rio Grande do Sul University Brazil 2
University of Warsaw University Poland 2
Zhejiang University University China 2
University of Malaya University Malaysia 2
Istanbul Technical University University Turkey 2
École Polytechnique University France 2
Boğaziçi University University Turkey 2
Universidad de Sonora University Mexico 2
University of Montenegro University Montenegro 2
University of Rochester University United States 2
Marmara University University Turkey 2
Kafkas University University Turkey 2
University of Eastern Piedmont Amadeo Avogadro University Italy 2
Princeton University University United States 2
Northwestern University University United States 2
California Institute of Technology University United States 2
University of Minnesota University United States 2
University of Hyderabad University India 2
University of California Los Angeles University United States 2
Hacettepe University University Turkey 2
University of Florida University United States 2
University of Canterbury University New Zealand 2
Johns Hopkins University University United States 2
Rice University University United States 2
University of Nebraska–Lincoln University United States 2
University of Virginia University United States 2
University of California, Davis University United States 2
Özyeğin University University Turkey 2
Seoul National University University South Korea 2
Hanyang University University South Korea 2
Kansas State University University United States 2
National Central University University Taiwan 2
Catholic University of America University United States 2
Brown University University United States 2
Georgian Technical University University Georgia 2
Carnegie Mellon University University United States 2
Vanderbilt University University United States 2
Beihang University University China 2
University of Notre Dame University United States 2
University of California, Santa Barbara University United States 2
Korea University University South Korea 2
Purdue University University United States 2
National Institute of Chemical Physics and Biophysics Research Centre Estonia 2
University of Illinois at Chicago University United States 2
Lawrence Livermore National Laboratory Research Centre United States 2
Baylor University University United States 2
Florida Institute of Technology University United States 2
Florida State University University United States 2
Wayne State University University United States 2
Kyungpook National University University South Korea 2
Quaid-i-Azam University University Pakistan 2
Universidad San Francisco de Quito University Ecuador 2
Universidad de Antioquia University Colombia 2
Universidade Federal de Mato Grosso do Sul University Brazil 2
Texas A&M University at Qatar University Qatar 2
Helwan University University Egypt 2
University of California, Riverside University United States 2
University of California, San Diego University United States 2
Benemérita Universidad Autónoma de Puebla University Mexico 2
University of Kansas University United States 2
University of Massachusetts System University United States 2
Universidade Estadual Paulista University Brazil 2
University of Puerto Rico at Mayagüez University Puerto Rico 2
Northeastern University University United States 2
University of Seoul University South Korea 2
University of Alabama, Tuscaloosa University United States 2
Universidade Estadual de Campinas University Brazil 2
Panjab University University India 2
Adıyaman University University Turkey 2
Sejong University University South Korea 2
University at Buffalo, State University of New York University United States 2
Sungkyunkwan University University South Korea 2
Texas A&M University System University United States 2
Texas Tech University University United States 2
Kyung Hee University University South Korea 2
University of Tennessee at Knoxville University United States 2
Bethel University University United States 2
Bhabha Atomic Research Centre Research Centre India 2
Institute of Physics Research Centre India 2
Indian Institute of Technology Madras Research Centre India 2
Izmir Institute of Technology University Turkey 2
Escuela Politécnica Nacional University Ecuador 2
Karamanoğlu Mehmetbey University University Turkey 2
Shoolini University University India 2
Rutgers University University United States 2
Visva-Bharati University University India 2
Universidad Iberoamericana University Mexico 2
Institute of High Energy Physics Research Centre Austria 2
Bingöl University University Turkey 2
Sinop University University Turkey 2
Şırnak University University Turkey 2
Indian Institute of Technology Bhubaneswar University India 2
Helsinki Institute of Physics Research Centre Finland 2
INFN Sezione di Catania Research Centre Italy 2
INFN Sezione di Padova Research Centre Italy 2
INFN Sezione di Torino Research Centre Italy 2
National Center for Theoretical Sciences Research Centre Taiwan 2
Stefan Meyer Institute for Subatomic Physics Research Centre Austria 2
Russian Academy of Sciences Research Centre Russia 2
Chinese Academy of Sciences Research Centre China 2
Indian Institute of Science Bangalore Research Centre India 2
Institut de recherche sur les lois fondamentales de l'Univers Research Centre France 2
Academy of Scientific Research and Technology Research Centre Egypt 2
Vinča Institute of Nuclear Sciences Research Centre Serbia 2
Tata Institute of Fundamental Research University India 2
Indian Institute of Science Education and Research Pune University India 2
Consejo Nacional de Ciencia y Tecnología University Mexico 2
Institute for Nuclear Research University Hungary 2
Zewail City of Science and Technology University Egypt 2
Centro de Investigación y de Estudios Avanzados Research Centre Mexico 2
University of Erlangen-Nuremberg University Germany 1
University of Liège University Belgium 1
Warsaw University of Technology University Poland 1
Ruhr University Bochum University Germany 1
Comenius University University Slovakia 1
Claude Bernard University Lyon 1 University France 1
Jožef Stefan Institute Research Centre Slovenia 1
University of Strasbourg University France 1
Lappeenranta University of Technology University Finland 1
Moscow Institute of Physics and Technology University Russia 1
University of Bergamo University Italy 1
Yerevan State University University Armenia 1
University of Split University Croatia 1
Florida International University University United States 1
University of Mississippi University United States 1
Universidade do Estado do Amazonas University Brazil 1
Universidad Autónoma de San Luis Potosí University Mexico 1
Universidade Federal do ABC University Brazil 1
Necmettin Erbakan University University Turkey 1
Sharif University of Technology University Iran 1
Mersin University University Turkey 1
Erciyes University University Turkey 1
Isfahan University of Technology University Iran 1
Universidade Federal de Pelotas University Brazil 1
Indian Institute of Technology Bombay University India 1
British University in Egypt University Egypt 1
Mimar Sinan Güzel Sanatlar Üniversitesi University Turkey 1
Petersburg Nuclear Physics Institute Research Centre Russia 1
Institute of Nuclear Physics Research Centre Uzbekistan 1
Károly Róbert University College University Hungary 1
Piri Reis University University Turkey 1
Beykent University University Turkey 1
Trento Institute for Fundamental Physics and Applications Research Centre Italy 1
Hiroshima Institute of Technology University Japan 1
Consiglio Nazionale delle Ricerche Research Centre Italy 1
Forschungszentrum Jülich Research Centre Germany 1
Bulgarian Academy of Sciences Research Centre Bulgaria 1
Institute of Particle Physics Research Centre Canada 1
Malaysian Nuclear Agency University Malaysia 1
University Hospital Aachen Hospital Germany 1