Abrahão Rotberg
Abrahão Rotberg, Brazilian dermatologist (Rio de Janeiro 12 January 1912 – São Paulo 01 November 2006) From Jewish Romanian parents Internationally known on leprosy allergy and immunology Authored about 200 scientific and popular works Distinguished tuberculoid leprosy and Virchowian leprosy (1933) Demonstrated the value of Mitsuda reaction forecast (1934) Proposed the existence of a genetic factor of natural resistance to leprosy (factor N of Rotberg) and hansen-anergic fringe of susceptilibility to disease Some aspects of immunity in leprosy and their importance in epidemiology, pathogenesis and classification of forms of the disease; based on 1529 lepromin tested cases. Rev. Bras. Leprol. Suppl. 5:45-97, 1937 Fator N de resistência à lepra e relações com a reatividade lepromínica e tuberculínica. Valor duvidoso do BCG na imunização antileprosa. Rev. Bras. Leprol. 25:85-106, 1957 Developed Rotberg-Bechelli technique for preparation of Mitsuda antigen Tratado de Leprologia II. Etiopatogenia e Anatomia Patológica (1944)
A. Ranga Rao
A. Ranga Rao, Indian geologist and paleontologist (fl.1971-89) DESCRIBED FOSSIL MAMMALIAN TAXA Genera Indohyus 1971 Kalakotia 1972 Paratritemnodon 1973 Species Hyrachus asiaticus 1973 with Obergfell Indohyus indirae 1971 Kalakotia simplicidentata 1972 Khirtharia inflata 1972 Kunmumella kalakotensis 1971 Paratritemnodon indicus 1973 HONORS Raoella Sahni & Khare 1971 (Fossil Mammalia)
Xuesen Qian
Xuesen Qian or Hsueh-sen Chien or Hsue-shen Tsien, Chinese engineer and physicist (Hangzhou, Zhejiang Province 11 December 1911- Beijing 31 October 2009) His relative is Nobel Prize winner Roger Yonchien Tsien Recognized as one of the world’s leading aerodynamicists ACHIEVEMENTS A method for predicting the compressibility burble With M.C. Chang. A similarity law for stressing rapidly heated thin-walled cylinders A method for comparing the performance of power plants for vertical flight Developed a method for two dimensional subsonic compressible flow and a procedure which enables the prediction of the compressibility burble from test data obtained at low air speeds With T. Von Karman gave a general relation between drag and heat transfer as function of Mach’s number Developed a general method using step-wise doublet distribution for a pointed projectile With E.J. Malina presented an exact solution of the problem of determining the height reached by a body in vertical flight in vacuo propelled by successive impulses Developed a new principle involving the energy level and the geometric restraint to determine buckling of thin shells in equilibrium states Gave a generalization of Blasius theorem for calculating aerodynamic forces acting on an airfoil With E. Reissner & C.C. Lin presented a simple unified treatment of the unsteady two-dimensional polytropic potential flow around a slender body Formulated rules for achieving complete flow similarity of rarified gas flow Generalized Alfrey theorem for isotropic compressible media involving body forces With T.C. Adamson & E.L. Knuth suggested a scheme of tracking and automatic navigation involving a high-speed computer and elevator servo for a long range rocket vehicle Co-authored the article Comment and initial analysis of long-range rocket, which laid a foundation for ground-to-ground missiles and sounding rocket theory Put forward a new methodology of systems engineering, the metasynthetic engineering With J.Y. Yu & R.W. Dai. A new discipline of science. The study of open complex giant system and its methodology (1988) EPONYMY Karman-Qian formula Karman-Tsien method Karman-Tsien law Karman-Tsien correction factor HONOURS Qianxuesen 3763 (asteroid)
Weichang Qian
Weichang Qian or Weizang Chien, Chinese physicist (Wuxi County, Jiangsu Province 09 October 1912 – Shanghai 30 July 2010) Authored over 200 papers and 18 monographs Studied new generalized variational principles and established a new variational functional Suggested using the Lagrange multiplier for eliminating the constraint conditions of all kinds of variational problems and established a new variational function using it Put forward a systematic method to construct generalized variational principles (1964) published only in 1979 Introduced the intrinsic methods in elasticity (1944) With J.L. Synge authored a pioneering classical work on the intrinsic theory of plates and shells in solid mechanics Established the complete intrinsic theory of plates and shells (1942) Proposed a method to calculate the resistance of radar-wave guides Perturbation theory (1947) Developed the method of composite expansions, a novel singular perturbation method (1948) Initiated a perturbation method by using the central deflection as ther perturbation parameter Solved the variable twist torsion problem of thin-walled cylinders with closed cross sections First to obtain the limit equation for thin ring shells and the general solution to the homogeneous equation Developed a new field of non-Kirchhoff-Love theory of plates and shells Derived a general solution for axisymmetric circular ring shells Developed a new method of encoding Chinese characters (1984) EPONYMY Successive approximation method of treating large deflection problem or Chien method (1948) Qian Weichang equation for nonlinear stability of shallow shell (1960s) Qian Weichang general equation
Sanqiang Qian & Zehui He
Sanqiang Qian (Tsien), Chinese nuclear physicist (Huzhou, Zhejiang Province 16 October 1913 – Beijing 28 June 1992) Discovered a new kind of fission in uranium atoms Developed some inventions Honored with Henri de Parville Award for Physics (1946) His wife, Zehui He, physicist (Suzhou, Jiangsu Province 05 March 1914 – Beijing 20 June 2011) With L. Vigneron & R. Castel proved the existence of ternary fission, explained its mechanism and predicted the mass spectrum of the fragments (1946) Performed the first observation of quaternary fission (1946) First observed the elastic scattering of electrons with positrons A new precise and simple method of measuring the speed of flying bullets. Doctoral Thesis (1940)
Roberto Quadrelli
Roberto Quadrelli Sanchez, Uruguayan medical geneticist (Montevideo 15 January 1937 – Described new mutations and complex chromosome rearrangements With A. Vaglio, A. Quadrelli et al. A 14 year follow up of a case detected prenatally of partial trisomy 13q21.32-q ter and monosomy 18q22.3-qter as a result of a maternal complex chromosome rearrangement involving chromosomes 63 and 18. Genet. Test. Mol. Biomol. (2009) Described a new syndrome With A. Vaglio, S. Reyno, A. Lemes et al. Uruguay facio-cardio-musculo-skeletal syndrome: a novel X-linked recessive disorder. Am. J. Med. Genet. 95:247-65, 2000 With S. Reyno, A. Vaglio, A. Lemes & A. Silveri. Displasias esqueléticas: aproximación a uma nueva clasificación. Experiencia del Instituto de Genetica Medica del Hospital Italiano. Arch. Pediat. Urug. 70(2):65-80, 1999 With R. Vignale, J. Bonifazio, N. Reissenweber & A. Vaglio. Telangiectasias generalizadas associadas a un paraganglioma (feocromocitoma) mediastínico y bócio nodular en una paciente integrante de una família con paraganglioma y bócio multinodular hereditário? Una nueva entidad?. Actas Dermo-sifil. (1998) Primeras familias con consaguinidad y sindrome nefrotico con esclerosis mesangial difusa