Amal Kumar Raychaudhuri
Amal Kumar Raychaudhuri, Indian / Bengali physicist (Barisal, British India 14 September 1923 – 18 June 2005) Authored 48 papers and 6 books Derivated Raychaudhuri equation independently of Landau Relativistic cosmology. I. Phys. Rev. 98:1123, 1955 Enunciated Raychaudhuri theorem Theorem for non-rotating singularity free universes. Phys. Rev. Lett. 80:645, 1998 A new theorem in relativistic cosmology. Mod. Phys. Lett. 15:391, 2000 EPONYMY Raychaudhuri identity Raychaudhuri scalar
Alvaro Reynoso
Alvaro Francisco Carlos Reynoso y Valdés, Cuban agronomist and chemist (Alquízar, Habana Province 04 November 1829 – La Habana 11 August 1888) ACHIEVEMENTS Nouveau procédé pour reconnaitre l’iode et le brome. Ann. Chimie et Phys. 26:285, 1849 Note sur plusieurs nouvelles combinations de l’amoniaque avec les cyanoferrures et, en particulier, avec le cyanoferrure de nickel. Comptes Rendus 33:409 & Ann. Chimie et Phys. 30:252, 1850 Sur un nouveau mode de separation de l’acide phosphorique d’avec les oxydes metalliques. Note sur le preparation des acides metalliques. Comptes Rendus 32:644, 1851 Demonstrated the action of water on many compounds under high pressure and temperature Action de l’eau, une haute temperature et sous une forte pression sur les pyrophosphates, metaphosphates, cyanures. Comptes Rendus 34:18 & 795, 1852 Memoire relative a l’action de l’eau sur divers corps une haut temperature et dans une forte pression. Comptes Rendus 36:230 &411, 1853 Memoire sur la presence du sucre dans le uries et sur la liaison de ce phenomene avec la respiration (1853) (prize-winner memory by Institut de France) Modified the Melsens procedure for sugar extraction from sugarcane Nota sobre el empleo del bisulfito de cal en la fabricación del azucar. Diario de la Marina 07 March 1859 Nuevo procedimiento para separar la magnesia de la potasa y la sosa. Mem. Real Soc. Acad. Ciencias (1863) Published Memoria obre la Presencia de sangre em la orina de las personas sometidas a La inalación de medicamentos anestesicos, with which received Montyon Prize of Medicine and Surgery from Academie des Sciences de Paris (1854) His doctoral thesis Investigaciones sobre la formación del eter was published in Annales de Chimie et de Physique de Paris (1856). This research was well received in French and Spanish scientific circles. Proposed reducting sugar cane in pulp until to obtain a homogenous paste favouring total extraction of juice and to amplify his percentage Conceived Reynoso system, an integral system of agrotechnical measures for intensive cultivation of sugar cane whose principles are in currency until in our days Published Ensayo sobre el cultivo de la caña de azucar or Essay about sugar cane cultivation (1862), that was regarded as one of the main works about sugar cane and translated to many languages, revolutionising sugar industry due to introduce scientific methodology in yield and management INVENTIONS Devised an apparatus for making the sugar cane produce 80% of sugar. This invention was silver medal distinguished at Industrial Fair of Paris (1878) Patented a new method of sugar crystallization employing cold treatment A patent about dividing sugar cane in rough sticks using rotative knifes (1874) A new alumina defecator A method to preserve permanently fresh meat joint its odor, color and flavour A solution for embalming corpses (1858-9) HONORS Reynosia Grisebach 1866 (Rhamnaceae)
Aline Renoux
Aline Renoux-Meunier, Caribbean phycologist of Guadeloupe (fl.1965-94) SOME BIBLIOGRAPHY With D. Pietkiewicz et al. Notes taxinomiques préliminaires sur Caulerpa taxifolia et Caulerpa mexicana (1994) Inventaire des algues marines des cotes d’Haiti (1978) Etude preliminaire de la flore algale de la mangrove du Grand Cul de sac marin. Nouv. Agron. Antilles-Guyane. 3(2):77-97, 1977 With G. Renoux. Notions d’écobiocoenotique marine, excursions en Martinique (1975) Etude de la végétation algale du cap Saint-Martin (Biarritz). Bull. Cent. Etudes Rech Sci. Biarritz 5:378-564, 1965 HONOURS Renouxia Fredericq & Norris 1995 (Rhodophyta)
Alfredo Rei do Rego Barros
Alfredo Rei do Rego Barros, Brazilian entomologist (fl.1940-85) DESCRIBED LEPIDOPTERA TAXA Genera Lepidolutzia 1956 Lepidonewtonia 1956 Leucanopsis 1956 Machadoia 1956 Pseudohemihyalea 1956 Romualdia 1957 Wanderbiltia 1958 Mellamastus 1959 Lepipyranga 1966 Bodosa 1969 (with Machado Filho) Pseudohyaleucerea 1971 (with Machado Filho 1971) Histioea 1971 with Machado Filho Species Adeloneivaia schubarti 1970 with Mielke Agyrtidia olivensis 1970 with Machado Filho Ammalo buritiensis 1975 Ammalo travassosi 1975 Citheronia bodoquena 1966 with Travassos Cresera espiritosantensis 1958 Cresera tinguaensis 1957 Eacles lemairei 1973 with Tangerini Elysius amapaensis 1971 Elysius itaunensis 1971 Histioea paraensis 1971 with Machado Filho Leptarctia nigrorubra 1959 Mielkesia paranaensis 1968 with Mielke Pareuchaetes misatlensis 1956 Pareuchaetes pseudoinsulata 1956 Pseudohyaleucera manicorensis 1971 with Machado Filho Wanderbiltia wanderbilti 1958 HONORS Regobarrosia Watson 1975 (Lepidoptera)
Alfred Rosenblatt
Alfred Rosenblatt, Polish/Peruvian mathematician (Krakow 22 June 1880 – Lima 08 July 1947) Authored more than 300 publications SOME BIBLIOGRAPHY Uber die existenz von integralen gewöhnlicher differentialgleichungen (1909) Geometrja analityczna na plaszczyznie (1926) Zagadninie torbulencji Sur certains mouvements stationnaires plans de liquids visqueux. Comptes Rendus Acad. Sci. Paris 189:450-2, 1929. Sur certains mouvements des liquides visqueux incompressibles (1933) Solutions exactes des equations du movement des liquids visqueux (1935) Sobre la representación conforme de dominios planos limitados variables. Doctoral Thesis, Universidad San Marcos, Lima, Peru (1936) With G. García. Sur La formule de Stokes dans la théorie de La gravite (1937) With G. García. Sur La regularisation du problemé plan des trois corps (1937) With J. Tola. Calculos provisorios para los contactos en el eclipse de Sol del 8 de junio de 1937 (1937) Sur le problems du calcul des variations des integrals simples dans le extremites variables. Rev. Ciencias 40:555-87, 1938 Sur le problems du calcul des variations des integrals simples dans le extremites variables. Rev. Ciencias 41:67-97, 1939 Sur les coefficients des series univalentes dans le circles unites. Bull. Soc. Math. Grece 19:127-8, 1939. Sur les points singulliers des equations différentielles. C.R. Acad. Sci. 209:10-11, 1939. Sur la propagation des ondes de Rayleigh dans le milieu transversalement isotropiques. Rev. Ciencias 42: Sur le concept de contagion de M.G. Pólya dans Le calcul del probabilités. Divers schemes. Application à la peste bubonique au Pérou (1940) Algunos datos sobre el eclipse total de Sol del 25 de enero de 1944 (1944) On the natural diatonic scales I. Actas Acad. Ciencias Lima 8:165-82, 1945 On the natural diatonic scales II. Actas Acad. Ciencias Lima 8:183-96, 1945 Sur les conditions d’unicité d’une solution des equations différentielles ordinaries. HONOURS Invited Lecturer, International Congress of Mathematicians (1928 & 1932)
Alfonso Romo de Vivar
Alfonso Romo de Vivar y Romo, Mexican organic chemist (San Francisco de los Romos, Aguascalientes 30 April 1928 – Authored over 170 works Studied molecular structures of natural products from Mexican flora and discovered new chemicals from them Gained international recognition for his studies on sesquiterpenic lactones Proposed biogenetical relationships of certain subgroups of natural products Isolated and determined chemicals as mexicanines A, B and C (1959-61), zaluzanines (1967) and franserine (1968) Discovered that seeds of many species from genus Yucca had steroidal glycosides (1975-7) and showed that their oils were edible Patented a method for synthesizing natural steroids of pharmaceutical importance from Yucca sp. (Mexican Patent 139297, 1979) Described Romo de Vivar transformation, a reaction of transformation involving a 2-acetoxy-brominated compound into a 2-hydroxy-acetylated compound With J. Romo. Some experiments with 16 β-bromo-17 α-acetoxy-20 ketosteroids. Synthesis of 16 α-17α-dihydroxysteroids and related compounds. J. Org. Chem. 21:902-9, 1956