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Paldus Josef

Prof., RNDr., DrSc., FRSC
Born November 25, 1935 in Bzí, District of Jablonec n/N

  • Honorary member of Learned Society since 1995

Educational and professional preparation:

  • 1953, graduate, academic secondary school, Liberec;
  • 1953-1958, Faculty of Mathematics and Physics, Charles University (FMP CU);
  • 1958, RNDr. FMP CU;
  • 1961, CSc. Institute of Physical Chemistry, Czechoslovak Academy of Sciences (IPC CSAS);
  • 1995, DrSc. FMP CU;
  • 1962-1964, Post-doctoral Fellow, Division of Pure Physics, National Research Council of Canada (NRCC).

Employment and academic positions:

  • 1961-1962, 1964-1965, 1966-1968, Scientist, IPC CSAS;
  • 1966, 1968 Visiting Scientist, NRCC;
  • 1968-1975, Associate Professor;
  • 1975-2001, Full Professor, Department of Applied Mathematics, Department of Chemistry and Guelph-Waterloo Centre for Graduate Work in Chemistry, Waterloo Campus, University of Waterloo;
  • 2001-present, Distinguished Professor Emeritus

Visiting professorships:

1973, Université de Reims (France); 1975-1976, 1982-1983, Université Louis Pasteur, Strasbourg (France); 1981, Katholieke Universiteit, Nijmegen (Netherlands); 1981, Freie Universität, Berlin (Germany); 1983, Technion, Haifa (Israel); 1997, Universitat Jaume I, Castelló (Spain); 1984-present, Adjunct Professor, University of Florida, Gainesvi11e, Florida (USA)

Positions in Canada:

1978-1980, Associate Dean for post-graduate studies, University of Waterloo; 1991-1994, Associate Director and 1991-96, Member, Board of Directors and Council, Fields Institute for Research in Mathematical Sciences; 1990-1993, Chemistry Selection Committee, Royal Society of Chemistry and Rutherford Medal Awards Committee; 1992-1993, Natural Sciences and Engineering Research Council (NSERC) Grant Selection Committee (Applied Mathematics).

Membership and positions in international organizations and societies:

  • 1981, Corresponding Member, European Academy of Sciences, Arts and Letters, Paris
  • 1983, Fellow of the Royal Society of Canada
  • 1984, Member of the International Academy of Quantum Molecular Science
  • 1990, Board of Directors, International Society for Theoretical Chemical Physics Editorial (E) and Advisory Editorial (AE) Boards:
  • 1977-1988, (AE) International Journal of Quantum Chemistry
  • 1981-1983, (E) Applied Quantum Theory, Comtex Scientific, New York, USA
  • 1986, (AE) Advances in Quantum Chemistry, Academic Press, New York, USA
  • 1987-1989, (E) Journal of Chemical Physics, American Institute of Physics
  • 1987-1993, (AE) Theoretica Chimica Acta, Springer Verlag, New York, Berlin
  • 1989, (AE) Journal of Mathematical Chemistry, Kluwer Academic
  • 1994-1997, (E) Canadian Journal of Chemistry
  • 1996, (E) International Journal of Quantum Chemistry Societies
  • 1977, American Physical Society
  • 1982, Canadian Applied Mathematics Society
  • 1989-2002, Canadian Chemical Society

Notable awards:

  • 1962, 1967, Award, Chemical Department, CSAS
  • 1983, Fellow, Royal Canadian Society and Academy of Sciences
  • 1985, Elected member, International Academy of Quantum Molecular Science
  • 1986-1987, Fellow, Wissenschaftskolleg zu Berlin (Institute for Advanced Study)
  • 1987-1989, Killam Research Fellow
  • 1992, J. Heyrovský Gold Medal, CSAS
  • 1994, Gold Medal, Comenius University, Bratislava
  • 1996 Alexander von Humboldt Senior Scientist Award
  • 2001, Journal of Molecular Structure special issue (volume 547) honouring his 65th birthday
  • 2002, Fellow, Fields Institute for Research in Mathematical Sciences

Selected publications:

  • J. Paldus, D. A. Ramsay: The 4550 A band system of glyoxal. 1. Rotational analyses of the (0,0) bands for C2H2O2, C2HDO2, and C2D2O2. Can. J. Phys. 45, 1389 (1967)
  • J. Paldus, J. Čížek, 1. Shavitt: Correlation problems in atomic and molecular systems. IV. Extended coupled-pair many-electron theory and its application to the BH3 molecule. Phys. Rev. A 5, 50 (1972)
  • J. Paldus: Group theoretical approach to the configuration interaction and perturbation theory calculations of atomic and molecular systems. J. Chem. Phys. 61, 5321 (1974)
  • J. Paldus, J. Čížek: Time-independent diagrammatic approach to perturbation theory of fermion systems. Advan. Quantum Chem. 9, 105 (1975)
  • J. Paldus: Many-electron correlation problem: A group theoretical approach. In: Advances and Perspectives, Vol. 2, Academic Press 1976, pp 131-290
  • J. Paldus, C. R. Sarma: Clifford algebra unitary group approach to many-electron correlation problem. J. Chem. Phys. 83, 5135 (1985)
  • M. D. Gould, J. Paldus: Spin-dependent unitary group approach. 1. General formalism. J. Chem. Phys. 92, 7394 (1990)
  • X. Li, J. Paldus: Automation of the implementation of spin-adapted open-shell coupled-cluster theories relying on the unitary group formalism. J. Chem. Phys. 101, 8812 (1994)
  • J. Paldus, X. Li: A critical assessment of coupled-cluster method in quantum chemistry. Advan. Chem. Phys. 110, 1 (1999)
  • X. Li, J. Paldus: General-model-space state-universal coupled-cluster theory. Connectivity conditions and explicit equations. J. Chem. Phys. 119, 5320 (2003)

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Luboš Perek is celebrating his 100th year

Founding fellow of the Learned Society and its doyen, astronomer doc. RNDr. Luboš Perek, DrSc, is celebrating his 100th birthday on 26 July 2019. He is an indelible part of history as the person who helped define cosmic space, he was the first to point out the issue of cosmic waste and was also a teacher to the most important Czechoslovak astronomers. Let us express our respect and admiration of the extraordinary scientific career of a person who worked tirelessly and continues to work. The Learned Society wishes Mr Perek health, optimism and joy in the oncoming years.


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On Friday 19 July the Academy of Sciences of the Czech Republic and the Learned Society of the Czech Republic sent a letter to Hungarian President János Ánder, in which they state their concerns regarding the situation in respect to management and funding of scientific activities in Hungary. An act, according to which not the Academy of Sciences, but a thirteen-member political committee, will decide on research, funding of scientific activities and establishment or closure of scientific workplaces, will come into force on 1 September.


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