Rio de La Loza brothers
Francisco Río de La Loza Miranda, Mexican chemist (Ciudad de Mexico 23 January 1856 – 1901) Son of chemist Leopoldo Río de la Loza and half-brother of Maximino Río de la Loza Performed chemical analysis of plant species with medicinal value Extracted the alkaloid erythrocoralloidine from Erythrina coralloides Estudio sobre el colorín. An. Inst. Med. Nac. Rev. El Estudio 3:159-65, 1877 With E.A. Armendariz isolated the alkaloid talaumine from Talauma mexicana Estudio del yolloxochitl Talauma Mexicana Don. Na. Inst. Med. Nac. 1:241, 1894 Isolated 31 active principles from Mexican plants such as alkaloid hymenocallin and glucoside coryamyrtine SOME BIBLIOGRAPHY Materia Medica Mexicana part 1, 1894 El principio amargo del zacatechichi (Calea zacatechichi). An. Inst. Med. Nacional 1896 Pequeno contingente al estudio sobre las diastasas oxidantes. An. Inst. Med. Nacional Mex. 3:58-61, 1897 Procedimiento de separación de los principales acidos contenidos en los vegetales. An. Inst. Med. Nacional 3 (14-15): 248-52, 1898 Memorias sobre el pulque. An. Inst. Med. Nacional Mex. 8:151, 1905 (posthumous) Maximino Río de La Loza Valderrama, Mexican pharmacist and inventor (1829-1903) Studied the active principle of Senecio canicida Sobre la naturaleza y propriedad del Senecio canicida llamado vulgarmente yerba de Puebla (1862) Showed the quality of itzcuinpatli or Puebla plant (Senecio canicida) as a medication to control epilepsy. El senecio en el tratamiento de la epilepsia. Gac. Med. Mexico 2:345-8 & 362-4, 1866 Isolated alkaloid arnicine from Heterotheca inuloides, alkaloid casimiroine from Casimiroa edulis and montanoic acid from Montanoa tomentosa (with E. Armendariz) INVENTIONS Some pills to cure epilepsy A device for pharmaceutical and industrial purposes named pirofono A process for making white lead A device for oxygen inhalations (1877) A continuous motion machine (1884) A device to avoid railroad accidents (1887) A saving furnace
Ringuelet family
Raul Adolfo Ringuelet, Argentine zoologist, biogeographer, hydrobiologist, ecologist and parasitologist (La Plata 10 September 1914 – Puerto Madryn, Chubut Province 29 April 1982) From French ancestry Authored 202 scientific works and 8 books Determined new systems of biological types from benthic fauna Proposed a character-index for differentiation of specific and infraspecific fishes taxa (1964) Performed the first studies about heterotrophic ciliates of Antarctica With L.A. Bulla. Un nuevo artefacto para el muestreo estratificado de plankton en ambientes someros (A new stratified sampler for shallow waters) Physis Sect B 33(87):241-6, 1974 DESCRIBED TAXA Hirudinea Families Cyclobdellidae 1972 Diestecostomatidae 1953 Mesobdellidae 1972 Nesophilaemonidae 1982 Genera Acritobdella 1978 Adaetobdella 1978 Caribeobdella 1976 Dacnobdella 1978 Gloiobdella 1978 Maiabdella 1980 Orchibdella 1976 Patagoniobdella 1972 Tribothrynobdella 1976 Species 33 Arachnida Guaranobunus 1954 Protodiasia 1954 Simplicibunus 1953 Species 17 Pisces Valid Species Diplomystes cuyanus 1965 Diplomystes mesembrinus 1982 Hyphessobrycon meridionalis 1978 with Miquelarena & Menni Others Crustacea Species 14 Ciliata Species 2 HONORS Raulringueletia Zetti 1972 (Fossil Mammalia) Ringueletium Garcia 1990 (Protozoa) His wife, Andreina Celeste Marina Bocchino de Ringuelet, vertebrate paleontologist (1915 – 15 April 2001) DESCRIBED FOSSIL VERTEBRATA GENERA Mammalia Borhyaenidium 1963 with Pascual Microbiotheridion 1953 Pisces Austrolepidotes 1974 Luisiella 1967 Neosemionotus 1973 Propygidium 1964 HONORS Ringueletia Reig 1958 (Fossil Mammalia) Daughter of couple, Adela Emilia Ringulet Bocchino, astrophysicist (La Plata, Buenos Aires Province 27 March 1930 – 26 April 2023) Married to astronomer Jorge Sahade SOME BIBLIOGRAPHY With R. Vallverdú, L. Cidale & R. Rohrmann. Atmospheric models of He-peculiar stars: synthetic He I line profiles and absolute visual magnitudes. Astroph. Space Science 352(1):95, 2014 With J. Zorec, M.L. Arías, L. Cidale & R. Venero. Scale height of circumstellar discs in Be stars. Bol. Asoc. Arg. Astron. La Plata 50:169-72, 2007 With A. Cruzado, J. Zorec & A. Vazquez. The Balmer discontinuity as a test for density and temperature distributions in circumstellar envelopes. Bol. Asoc. Arg. Astron. La Plata 50:97-100, 2007 With J. Zorec, M.L. Arías & L. Cidale. Be star disc characteristics near the central object. Astron. Astrophys. 470(1):239-47, 2007 With A. Cruzado & H.O. DiRocco. Analysis of the SiII and SiIII dielectronic processes applied to stellar envelopes. Astrophys. J. 554, 2001 With R. Venero & L. Cidale. Theoretical He II lambda 4686A line profile in the Wind of hot stars. Rev. Mex. Astron. Astrofis. 8:127-9, 1999 With O. Cruzado & H.O. DiRocco. Dielectronic recombination of Mg II in stellar envelopes. Astrophys. J. 503, 1998 With L.S. Cidale. Rigorous treatment of the radiative transfer problem in stellar winds. Significance of the velocity law and the chromosphere in the H-alpha profile. Astrophys. J. 411:874-81, 1993 With M.E. Iglesias. Magnetohydrodynamic flows in Be stars. Variable energy flux and heat input distribution. Astrophys. J. 411:342-50, 1993 With A.C. Rovero. 3 Puppis. A peculiar object with infrared excess. Mon. Not. R. Astron. Soc. 266:203, 1993 With H. Chen, J. Sahade & Y. Kondo. Analysis of the velocity law in the wind of the Be star Lambda Pavonis. Astrophys. J. (1990) With J. Sahade, M. Rovira, Y. Kondo & L. Cidale. The extended atmosphere at the time of the emergence of H-emissions from minimum intensity. Astrophys. J. (1988) With J. Sahade & N. Rotstein. Variations in the envelope of the shell star HD50845 (1987) With A. Costa. The behaviour of the atmosphere of Sigma Scorpii. Rev. Mex. Astron. Astrof. 10:293, 1985 Near ultraviolet spectra of a group of early-type stars with Balmer emission. Mon. Not. R. Astr. Soc. 192:399-407, 1980 With L. Houziaux. Ecliptic coordinates of selected hot stars (1972) With J. Sahade. The problem of the determination of the masses in Algol systems, Vistas in Astronomy 12:143-6, 1970 Paschen discontinuity in B stars. Astroph Space Sct 5(4), 1969 With C.O.K. Jaschek. Note on the evolution of the Cepheids. Z. Astrophys. 48:22-7, 1959 With M.L. Arías, J. Zorec & L.S. Cidale. Properties of regions forming the Fe II emission lines in Be stars Double absorption cores in the shell spectrum of 48 Librae Spectrophotometry properties of Be stars: the Be shell star Diagnosis of low density regions through the Fe II line profiles HONORS Asteroid 5793 Ringuelet
Ricardo Ronderos
Ricardo Arturo Ronderos, Argentine entomologist (Santa Rosa, La Pampa Province 17 September 1928 – La Plata 03 March 1995) DESCRIBED ARTHOPODA TAXA ORTHOPTERA Genera Argemiacris 1978 Bogotacris 1980 Boliviacris 1990 with Cigliano Circacris 1989 with Cigliano Comansacris 1990 with Cigliano Coyacris 1991 Descampsacris 1972 Haroldgrantia 1967 with Carbonell & Mesa Hazelacris 1981 Intiacris 1990 with Cigliano Keyacris 1991 with Cigliano Keyopsis 1993 with Cigliano Maeacris 1983 Mariacris 1989 with Turk Orotettix 1994 with Carbonell Ponderacris 1991 with Cigliano Radacris 1983 with Sanchez Yuangasacris 1987 Species About 155 OTHERS Genus Cuyana 1969 with Capri (Anoplura) Species Culex xenophobus 1965 (Diptera) Cuyana maurii 1969 with Capri (Anoplura) Eulinognathus hepperi 1969 with Capri (Anoplura) Hesperoctenes chorote 1960 (Hemiptera) Hesperoctenes giganteus 1960 (Hemiptera) Hesperoctenes minor 1962 (Hemiptera) Hoplopleura scapteromydis 1965 (Anoplura) Triatoma garciabesi 1967 with Carcavallo, Martínez, Cichero & Prosen (Hemiptera) HONORS (Orthoptera) Ronderosacris Carbonell & Descamps 1978 Ronderosia Cigliano 1997
Ricardo Rimini
Ricardo Rimini di Cave, Uruguayan biomedical scientist and sportsman (28 January 1908 – ?) He participated in Olympic Games of Helsinki as fencer (1952) Developed an apparatus for pleural washing and aspiration Presentación de un aparato para lavado y aspiración pleural. Hoja Tisiologica 8, 1948 WITH J.L. DUOMARCO Authored the first study about intra-abdominal pressure in human (1947) Important studies on venous pressure in human First to show clearly the abdomen behaves as a fluid-filled container with a flexible anterior abdominal wall (1947) Suggested that venous collapse is a hydrostatic analogy of a waterfall (1954)
Riazuddin
Riazuddin, Pakistani theoretical physicist (Ludhiana, Punjab 10 November 1930 – Islamabad 09 September 2013) Authored 165 publications, 3 books and 5 book chapters Authored the books Theory of Weak Interaction in Particle Physics (1969) with R.E. Marshak & C.P. Ryan and A modern introduction to particle physics (1992) with Fayyazuddin ACHIEVEMENTS First to use the dispersion relation for Compton scattering of virtual photons on pions to analyze their charge radii (1959) With Fayyazuddin the firsts to apply current algebra in neutrino scattering to determine the scale invariance of chiral symmetry (1972) With L.K. Pandit proposed a precursor of Melosh transformation Introduced SU(3) symmetry in the theory of light neutrinos (2007) Pointed out the formation of a new type of Seesaw mechanism (2008)
Renato Radicella
Renato Radicella, Italian-born Argentine nuclear and radiochemist (Messina 06 July 1934 – 22 April 2011) Authored over 50 papers and books Developed new methods for radioisotopes production DESCRIBED NEW RADIOISOTOPES Sb-126 (with H. Bosch) Sb-126m, Sb-128 and Sb-128m (with I. Franz & J. Rodríguez) OTHERS CONTRIBUTIONS With R.A. Caro, T. de Paoli, A.A. Hager & R. Szyszkowsky. Preparation, physicochemical properties and biological behaviour of a radiogold colloid stabilized with gelatine of isoelectric point 92. Int. J. Appl. Radiat. Isotopes 23(8):382-4, 1972 With H. Kurcbart, S. Quiroga & R.A. Caro. Microdetermination of iodine in carrier-free 131 I solutions (1972) With R.P. Fragoso. A new method for the preparation of carrier-free phosphorus 32. Comis. Nacional Energia Atomica 19:342-8, 1964 & Radiochim. Acta 4(2):106-7, 1965 With H. Kurcbart. A new P32-labelled colloid for medical use. Inter. J. Appl. Radia. Isot. 23(8):382-4, 1965 With O.L. Garzón & M.C. Palcos. Un Nuevo coloide marcado con Tc-99m (Technetium 99m labeled colloid). Comis. Nacional Energia Atomica vol. 152, 1964 & Int. J. Appl. Radiat. Isotopes 16:613, 1965 With H. Kurcbart. Un nuevo coloide marcado con P-32: su preparación y su distribución en ratones. Comis. Nacional Energia Atomica vol 163, 1964 With S. Abrashkin. A production method for 131iodine from irradiated uranium oxides. Comis. Nacional Energia Atomica vol 101, 1963 With M.C. Palcos de Enquin & J. Rodríguez. Um método de analisis elemental orgânico por activación (1960)