Sergio Machado Rezende
Sergio Machado Rezende, Brazilian physicist (Rio de Janeiro 03 October 1940 – Authored about 230 papers and 6 books With F.M. de Aguiar obtained the first experimental observation of chaotic dynamics in excited magna by parallel pumping in Physical Review Letters 56:1070-3, 1986 With Antonio Azevedo first to report chaos control in magnetic systems, being the first time in any physical system in Physical Review Letters 66:1342-5, 1991 With A. Azevedo, C. Chesman, F.M. Aguiar, X. Bian & S.S. Parkin first to note biquadratic coupling in ultra-thin films in Physical Review Letters 76:4837-40, 1996 With F.M. de Aguiar, M.A. Lucena & A. Azevedo first direct observation of magna excitation by spin injection into ultra-thin films in Physical Review Letters 84:4212-5, 2000 Demonstrated the value of substances magnetic field could fluctuate arbitrarily featuring a chaos state Discovered new properties of multilayers and magnetic nanostructures Discovered that phonons can have magnetic spin With J. Holanda, D.S. Maior & A. Azevedo. Detecting the phonon spin in magnon-phonon conversion experiments. Nature Physics (2018)
Sergio de Almeida Rodrigues
Sergio de Almeida Rodrigues, Brazilian marine zoologist (São Paulo 10 June 1937 – São Paulo 14 October 2003) Nephew of medical mycologist Floriano Paulo de Almeida Internationally respected as an authority on Thalassinid Crustaceans DESCRIBED VALID MARINE TAXA Crustacea Genera Marcusiaxius 1972 with Carvalho Poti 1992 with Manning Species Aegla perobae 1977 with Hebling Axianassa australis 1992 with Shimizu Biffarius delicatulus 1992 with Manning Ctenocheles holthuisi 1978 Eucalliax cearaensis 1992 with Manning Lepidophthalmus sinuensis 1991 with Lemaitre Lepidophthalmus siriboia 1993 with Felder Marcusiaxius lemoscastroi 1972 with Carvalho Paraxiopsis pindatyba 1991 with Rodrigues Poti gaucho 1992 with Manning Sergio guara 1971 Sergio guassutinga 1971 Sergio mirim 1966 Tunicata Botryllus tabori 1962 Pyura mariscata 1966 Pyura millari 1966 HONORS Sergio Manning & Lemaitre 1994 (Crustacea)
Santosh Kumar Ray
Santosh Kumar Ray, Indian petrologist and mineralogist (Calcutta 31 January 1908 – Calcutta 07 September 1976) SOME BIBLIOGRAPHY With K. Gopalan, J.R. Trivedi, M.N. Balasubramanyan & C.A. Sastry. Rb-Sr chronology of the Khetri copper belt, Rajasthan (1979) Structural history of the Saladipura pyrite pyrrhotite deposit and associated rocks, Khetri belt, Rajasthan. J. Geol. Soc. India 15:227-38, 1974 Inversion of fold hinge in superposed folding: an example from the Precambrian of Central Rajasthan, India (1974) With K. Naha. Structural and metamorphic history of the “Simla klippe”: a summary. Himalayan Geology 1:1-24, 1971 With K. Naha. Metamorphic history of the Jutogli-series in the Simla klippe, Lower Himalaya (1970) With S.K. Ghosh & B. Sen. Age and metamorphism of the rocks in the Simla area – a critical study (1966) HONORS Rayite Basu, Bortnikov, Mookherjee, Mozgova, Tsepin & Vyalsov 1983 (Mineral)
Santiago Roth
Kaspar Jacob Roth, Swiss-born Argentine explorer, paleontologist, geologist and hydrologist (Herisau 14 June 1850 – Buenos Aires 24 August 1924) Discovered Pontimelos man (1881) DESCRIBED MAMMALIA FOSSIL TAXA Order Notoungulata (1903) Genera Blastoconus 1903 Calodontotherium 1903 Colhuapia 1901 Colhuelia 1901 Degonia 1901 Diplodon 1901 Eurystephanodon 1903 Eutrochodon 1903 Grypolophodon 1903 Helicolophodon 1903 Heteroglyphis 1899 Heterolophodon 1903 Isolophodon 1903 Lafkenia 1903 Lelfunia 1901 Lemudeus 1903 Lonkus 1901 Megalacrodon 1900 Megalophodon 1903 Monoeidodon 1898 Monolophodon 1903 Nesciotherium 1898 Nesodonopsis 1898 Notamynus 1903 Notorhinus 1903 Ortholophodon 1901 Otronia 1901 Palyeidodon 1898 Pehuenia 1901 Periphragnis 1899 Picunia 1901 Plesiofelis 1903 Plesiomegatherium 1911 Plesioxotodon 1901 Polymorphis 1899 Proacrodon 1899 Prostylophorus 1901 Pseudopithecus 1901 Puelia 1901 Pyramidon 1901 Rankelia 1901 Rhyphodon 1899 Setebos 1901 Tachytypotherium 1903 Tehuelia 1901 Trigonolophodon 1903 Trilobodon 1901 HONORS Santiagorothia Hitz, Reguero, Wyss & Flynn 2000 (Fossil Mammalia)
S. Senathi Rajah
Sinnathamby Senathi Rajah, Malaysian geologist (Batu Gajah 13 January 1933 – 11 December 2025) CO-DESCRIBED FOSSIL FORAMINIFERA SPECIES Eoparafusulina malayensis 1979 with Igo & Kobayashi Parafusulina chungi 1979 with Igo & Kobayashi Skinnerella johorensis 1979 with Igo & Kobayashi Skinnerella yini 1979 with Igo & Kobayashi SOME BIBLIOGRAPHY Nature and Origin of Gossans on Brunswick no 6 Deposit, Gloucester County, New Brunswick. Thesis, Univ. Western Ontario, London (1962) Younger Mesozoic sedimentary rocks stage of Johore, W. Mal. Am. Assoc. Petrol. Geol. 53(10):2187-9, 1969 With E. Kon’no & K. Asama. The Late Permian Linggin Flora from the Gunong Blumut area, Johore, Malaysia. Bull. Nat. Sci. Museum 13:491-580, 1970 Geology of the Gunong Blumut area. Ann. Rep. Geol. Surv. Malaysia. P.79-83, 1970 Limestone occurrences in Johore. Bull. Geol. Soc. Malaysia 3:131-3, 1970 Geology and mineral resources of the Ulu Lebir area of Trengganu, Kelantan and North Pahang. Ann. Rep. Geol. Survey Malaysia, p.108-10, 1972 With K.K. Khoo. An investigation of Limestone of Kuala Jelai, Negeri Sembilan. Rep. Geol. Survey 3, 1972 With K. Asama, A. Hongnusonthi, J. Iwai et al. Summary of the Carboniferous and Permian plants from Thailand, Malaysia and adjacent areas. Contr. Geol. Palaeontol. South Asia 15, 1975 With F. Chand & D. Santokh Singh. The granitoids and mineralization of the eastern belt of peninsular Malaysia. Bull. Geol. Soc. Malaysia 9:209-32, 1977 The Kinta tinfield, Malaysia. Bull. Soc. Geol. Malaysia 11:111-36, 1979 With H. Igo & F. Kobayashi. Permian fusulinaceans from the Sungei Sedili area, Johore, Malaysia. Contr. Geol. Palaeontol. South Asia 20:95-118, 1979 With M.O. Schwartz, A.K. Askury, P. Putthapiban & S. Djaswadi. The Southeast Asian tin belt. Earth Sci. Rev. 38(2-4): 95-293, 1995 HONORS Rajahia Konno 1970 (Fossil Plant)
Rísquez family
Francisco Antonio Rísquez Alfonso, Venezuelan physician and pharmacist (Juan Griego, Nueva Esparta 10 December 1856 – Caracas 10 July 1941) Authored over 500 works With B. Mosquera enunciated concept of paratyphic fevers (1893) Described malarial melanemia or Rísquez sign (1893) HONORS Nocht Medal (1928) His son, Jesus Rafael Rísquez Gonzalez, physician (Caracas 24 October 1883 – Caracas 11 December 1947) With Pedro del Corral described Neisseria venezuelensis (1935) Un nuevo remedio contra la tripanosomiasis. Vargas 12(8):119-24, 1921 Authored classical works on anatomical pathology of schistosomiasis Note on the invasion of the lymphatic glands by the ova of Schistosoma mansoni Notes on bilharziosis in Venezuela. Contribution to the study of its anatomical pathology. Gac. Med. Caracas 23(4):25-6, 1916