Domingo Giribaldo
Domingo José Pedro Giribaldo Larcebo, Uruguayan chemist (Pando, Canelones 25 January 1876 – Montevideo 09 July 1950) From Italian father and French mother ACHIEVEMENTS Proposed pR, a new notation for determining acidity or basicity of solutions as an alternate to pH scale Notation rationnelle pour exprimer la reaction actuelle des solutions. Bull. Societé Chimie Biol. 7:652-64, 1925 Ein neuer ausdruck für die aktuelle reaktion der Losungen. Biochem. Ztschr. 163:8-12, 1925 Expression of the current reaction of the solutions. Sorensen’s notation and its disadvantages. New rational notation (1924) Proposed a general equation of electrolytes on the basis of the different degrees of ion’s oxidation Redox theory of electric cells. Proc. 8th Amer. Sci. Congr. 7:146-67, 1942. Developed a general method for potentiometric calculation of pH index Expresión de la reacción y calculos potenciometricos en la determinación del pH (1938) With A. Peluffo his work about determination of milk extracts using density gained a good repercussion (1909) With A. Peluffo. Determination indirecte de l’extrait du lait de vache:origine et fondements des formules qui servent à en faire le calcul. Introduced improvements in Carrel liquid (1924) Líquido Carrel (1924) Developed Giribaldo galvanic pairs Teoria General Redox de los pares galvânicos (1940) Developed electrolysis method in diaphragm cell (1911) patented in Germany Invented a electrolytic trough (1920s) Patronización de los electrodos de calomelano (Standardization of calomelane electrodes) SOME BIBLIOGRAPHY / OTHER CONTRIBUTIONS Ventajas de pR sobre pH en la expresión de la reacción. Anales Fac. Quim. Farm. Univ. Montevideo 2, 1938 Expresión de la reacción y cálculos potenciometricos em la determinación del pH (1937) With A. Peluffo. Bemerkungen zu der Neuen formel von Hoyberg zur Berechnung der Feltfreien Trockensubstanz der Milch. Zeitschr. Fur Untersuchung der Nahrungs und Genussmittel. 38:207, 1919 With A. Peluffo. La glucosa comercial. Rev. Centro Farm. Urug. 13:225, 1906 La expresión de la reacción de los medios acuosos. Anal. Fac. Quim. Farm. Montevideo Expresión de la reacción de las disoluciones acuosas Reducción de las pesadas al vacio El problema del azúcar Fundamento teórico de la determinación precisa de los pesos moleculares y atômicos a partir de las densidades gaseosas Contribución a la teoría del analisis indirecto Significado electronico de la constante de equilíbrio de las reacciones químicas electromotrices Teoria de los electrodos de sales insolubles Estabelecimiento de las ecuaciones de las reacciones quimicas de oxidación-reducción sobre la base de las ecuaciones electronicas de los sistemas Redox reaccionantes Dos teoremas previos al estabelecimiento de las ecuaciones de Gibbs TRIVIA The first Third World chemist to be nominee to Chemistry Nobel Prize (1949)
Domingo Felix Gimenez
Domingo Felix Gimenez, Argentine microbiologist (1924- Developed Gimenez stain Staining Rickettsia in yolk sac cultures. Stain Technol. 39:135-40, 1964 With L.S. Mayorga, O.P. de Centorbi & C.C. de Millan. Rapid in vivo assay method for type G Botulinal toxin. Zentr. Bakter. Mikrobiol. Hyg. A 264(1-2):78-83, 1987 SOME BIBLIOGRAPHY With C.A. Ciccarelli & J.M. Barrera. Siphonaptera de Mendoza. Anales Soc. Cient. Arg. 178:125-39, 1964 Gram staining of Coxiella burnetii. J. Bacteriol. 90:834-5, 1965 With A.S. Ciccarelli. A new type of Clostridium botulinum. (1967) With A.S. Ciccarelli. Studies on strain 84 of Clostridium botulinum. Zentralb. Bakt. Parasit. 215:212-220, 1970 With A.S. Ciccarelli. Another type of Clostridium botulinum. Zentralb. Bakt. Parasit. 215:221-4, 1970 Serological classification and typing of Clostridium botulinum. Dev. Biol. Stand. 32:175-83, 1976 With A.S. Ciccarelli, D.N. Whalley & L.N. McCroskey et al. Cultural and physiological characteristics of Clostridium botulinum type G and the susceptibility of certain animals to its toxin. Appl. Environ. Microbiol. (1977) With A.S. Ciccarelli. New strains of Clostridium botulinum subtype Af. Zentralb. Bakt. Parasit. Infektionskr. Hyg. Abt 1. Orig. Reihe A 240:215-220, 1978 Clostridium botulinum subtype Ba. Zentralb. Bakt. Parasit. Infektionskr. Hyg. Abt 1. Orig. Reihe A 257:68-72, 1984 With R.A. Fernandez, A.S. Ciccarelli & G. Arenas. Type D and A Clostridium botulinum in necropsy samples from bovines with “mad of Aguapey”. Rev. Arg. Microbiol. 21:47-53, 1989 With J.A. Gimenez. The typing of botulinal neurotoxins. Int. J. Food Microbiol. 27(1):1-9, 1995
Djalma Guimarães
Djalma Guimarães, Brazilian mineralogist, petrographer and geochemist (Santa Luzia, Minas Gerais State 05 Nov 1894 – Belo Horizonte 10 October 1973) Authored over 240 works ACHIEVEMENTS Described two new mineral species (arrojadite in 1924 and pennaite in 1948) and the mineral variety eschwegeite in 1926 Named rock araxaite (1926) Described a variety of skarnit (1960) Proposed a new method used to separate uranium and other elements in high degree of purity (1929) Sobre um processo de separação do urânio, do zircônio, tântalo, nióbio, titânio, ferro, manganês, chumbo, estanho, cobre, níquel e cromo. Anais Acad. Bras. Ciências 1(4):198-200, 1929. Patented a new process for production of fertilizer from apatite Proposed a new genetical metamorphic process for Diamonds Upland Diamonds deposits. Diamantina District, Minas Gerais. Economic Geology, New Haven 24:444-47, 1929. Proposed enstenitization or hiperstenization theory that postulates a change in piroxene structure from monoclinical to orthorhombic. Proposed genetic granitization of rocks (1938) independent from H.G. Backlund studies Das problem der Granitbildung. Chemie der Erde 12:83-94, 1938. Suggested that crust acidification is a general process Proposed a theory about the origin of alkaline rocks, an opposite view of Daly theory A origem das rochas alcalinas (1947) Authored the monograph Mineral deposits of magmatic origin whose abstract was published in Economic Geology and his theory accepted and teached in courses of Economic Geology of a number of universities in United States Obtained the first successful result in the history of geophysical methods in the world when he headed the group that used aerocintilometry for finding pyrochlore deposits in Araxá, Minas Gerais State (1953) HONORS Named Prince des Geologues by Madame Curie Djalmaite C.P.Guimarães (today uranomicrolite) Guimaraesite Chukanov, Atencio, Zadov, Menezes Filho & Coutinho 2007 (Mineral) His brother, geochemist Caio Pandiá Guimarães (Rio de Janeiro 13 January 1914 – Belo Horizonte 16 September 1945) Authored 14 works Described analytical process for tantalum-niobates Marcha analítica (Analytical process) para os tântalos-niobatos. Mineração e Metalurgia 6(31):41-45, 1941 Described mineral djalmaite (1939)
David Joaquín Guzmán
David Joaquín Guzmán Martorell, Salvadorean naturalist and anthropologist (San Miguel, El Salvador 15 August 1843 – San Salvador 20 January 1927) SOME BIBLIOGRAPHY Essai de topographie physique et médicale de la Republique du Salvador (Amerique Central). Thesis, Faculté de Medecine de Paris (1869) Estudio sobre el cultivo de algunas plantas y arboles industriales susceptibles de explotarse en la Republica de Costa Rica (1892) Botanica industrial de Centro America (1908) Especies utiles de la flora salvadoreña (1926) HONORS Honorary Member, Academie Internationale de Botanique de Le Mans (French) Honorary Member, Academie Universelle des Sciences Naturelles, Bruxelles (1885)
Coluthur Gopalan
Coluthur Gopalan, Indian nutritional biochemist (Salem, Tamil Nadu 29 November 1918 – Chennai 03 October 2019) Studied Grierson-Gopalan syndrome Burning feet syndrome. Indian Medical Gazette 81:22-26,1946. Showed the importance of breast-feeding for infant growth and also the effect of maternal dietary intake and nutritional status on breast milk composition Showed the role of pantothenic acid in the burning feet syndrome and the role of fatty acids in phrynoderma Demonstrated the link between aflatoxicosis and hepatic carcinoma Suggested the amino acid imbalance may be one cause of pellagra SOME BIBLIOGRAPHY The etiology of phrynoderma. Ind. Med. Gaz. 82:16-20, 1947 The lathyrism syndrome. RSTMH-T 44:333-8, 1950 Some cutaneous disorders related to malnutrition. Ind. J. Dermatol. Venereol. Leprol., p. 2311-8, 1957 With B. Belavady. Chemical composition of human milk in poor Indian women. Ind. J. Med. Res. 45:234-45, 1959 With B. Belavady. Effect of dietary supplementation on the composition of breast milk. Ind. J. Med. Res. 46, 1960 Possible role for dietary leucine in the pathogenesis of pellagra. Lancet 1:697-9, 1959 With S.G. Srikantia. Leucine and pellagra. Lancet 2: 954-7, 1960 With S.G. Srikantia. Kwashiorkor and mental development. Am. J. Clin. Nutr. 21:844, 1968 With T.V. Madhavan. Effect of dietary protein on carcinogenesis of aflatoxin. Arch. Pathol. 85:133-7, 1968 With K.S.J. Rao & S.G. Srikantia. Plasma cortisol levels in protein calorie malnutrition. Arch.Dis. Child 43:365-7, 1968 With S.G. Srikantia & L. Vasantha. Biochemical changes in the skin in kwashiorkor. Am. J. Clin. Nutr. 23(1):78-82, 1970 With B. Yadgiri, V. Reddy, P.G. Tulpule & S.G. Srikantia. Aflatoxin and Indian childhood cirrhosis. Am. J. Clin. Nutr. 23(1):94-8, 1970 Pellagra in sorghum eaters. Proceed. First Asian Congress of Nutrition, Hyderabad, p.661-9, 1972 With M.C. Swaminathan, V.K.K. Kumari, D.H. Rao & K. Vijayaraghavan. Effect of calorie supplementation on growth of undernourished children. Am. J. Clin. Nutr. 26:563-6, 1973 With Y.G. Deosthale. The effect of molybdenum levels in sorghum (Sorghum vulgare Pers.) on uric acid and copper excretion in man. Brit. J. Nutr. 31:451, 1974 With K.S. Jaya Rao. Pellagra and aminoacid imbalance. Vitam. Horm. 33:505-28, 1975 With T.V. Madhavan. Effect of dietary protein on aflatoxin injury in weanling rats. Arch. Pathol. 80:123-6, 1975 With K. Krishnawamy. Famine oedema. Progr. Food Nutr. Sci. 1(3):207-24, 1975 Vitamin A and child mortality. Bull. Nutr. Found India 11:1-3, 1990 Vitamin A deficiency and childhood malnutrition. Lancet 340:177-8, 1992 Kwashiorkor and marasmus: evolution and distinguishing features. Natl. Med. J. India 5(3):145-51, 1992 HONOURS President, International Union of Nutritional Sciences (1975-9) International Union of Nutrition Sciences Award (1989) LINKS http://www.currentscience.ac.in/Volumes/107/07/1184.pdf
Chhitar Mal Gupta
Chhitar Mal Gupta, Indian molecular biologist (Bharatpur, Rajasthan State 01 September 1944 – Authored 136 papers and 5 book chapters Elucidated the actin cytoskeletal network in Leishmania Delineated the factors that generate and maintain the transbilayer phospholipid asymmetry in erythrocytes and yeast plasma membranes Defined the depth of insertion of membrane integral proteins in bilayer matrix and the factors that determine the phospholipids conformation and their packing in vesicles Developed a novel class of liposomes which resist their lysis by blood components and survive for long in blood circulation Developed simple and efficient procedures for synthesis of natural and modified phospholipids PATENTS (6) With I.A. Modi, B.M. Khamar, A. Puri, R.S. Bhatta, R. Pratap, G.K. Jain, S. Bhadauria, a.K. Khanna, O.P. Asth & A. Ghatak. Combination of BAR antagonist and HMC CoA reductase inhibitor for treatment of dyslipidemia PCT/IB2010/000898 & WO201022407A3