Benjamin Gilbert
Benjamin Gilbert, English-born Brazilian organic chemist (Felixstowe, Suffolk 27 September 1929 – Rio de Janeiro 09 February 2024) Authored nearly 200 scientific publications mainly about Brazilian natural products and control of vectors in endemic diseases Isolated and elucidated structures of a number of indolic alkaloids in Apocynaceae plants Phytochemistry & Parasitology Identified with W.B. Mors and J. Pellegrino, 14, 15-epoxi-geranylgeraniol, from fruit oil of Pterodon pubescens, that prevents the schistosomal cercariae penetration in host skin (1967) With H. Moussatché, H. Lent & M. Kitagawa. Insect juvenile hormone-like activity in a diterpene. Rev. Bras. Biol. 30(1):55-60, 1970 With J. Pellegrino & D. Santos Filho. Extract of Enterolobium timbouva Martius, 1837, a penetration stimulant for cercariae of Schistosoma mansoni. Rev. Bras. Pesq. Med. Biol. 4(4-5):315-6, 1971 With J. Pellegrino, J.P. Souza, C.C. Fortes, D. Santos Filho, A.P. de Seabra & M. Kitagawa. Chemo prophylactic agentes in schistosomiasis. I. Active and inactive terpenes. J. Parasitol. 56:397, 1970 With W. Vichnewski. Schistosomicidal sesquiterpenes lactone from Eremanthus elasagnus. Phytochemistry 11:2563-6, 1972 With P.M. Baker, C.C. Fortes, E.G. Fortes, G. Gazzinelli, J.N.C. Lopes, J. Pellegrino, T.C.B. Tomassini & W. Vichnewski. Chemoprophylactic agents in schistosomiasis, eremanthine, costunolide, alpha cyclo costunolide and bisabolol. J. Pharm. Pharmacol. 24:853-7, 1972 With W.B. Mors, P.M. Baker, T.C.B. Tomassini, J. Pellegrino, N. Katz et al. A atividade anti-helmintica dos oleos essenciais e de seus components químicos. Anais Acad. Bras. Ciencias 44:423-8, 1972 With D. Santos Filho, W. Vichnewski & P.M. Baker. Prophylaxis of schistosomiasis. Diterpenes from Pterodon pubescens Benth. Anais Acad. Bras. Ciencias 44(1):45-9, 1972 With J.P. de Souza, M. Fascio, A.P. de Seabra & J. Pellegrino. Esquistossomose: proteção contra infecção por terpenóides. Anais Acad. Bras. Ciencias 42:397-400, 1970 (Suppl) With N. Nunes da Rocha, R. Borojevic & J. Pellegrino. Schistosoma mansoni in vitro transformation of cercarial into schistosomules. Parasitology 64:333, 1972 With E.G. Goulart, J.C. Holanda, J.A.R. Costa et al. Inibição da evolução externa de Strongyloides stercoralis e ancilostomídeos por produtos naturais. Rev. Bras. Med. 29(1), 1972 With D. dos Santos Filho, J.L.C. Lopes, S.J. Sarti, W. Vichnewski et al. Atividade anti helmíntica de óleos essenciais (1973) Natural product derivatives in tropical insect and parasite control (1977) With A.V. Pinto, M.C.R. Pinto, J. Pellegrino & R.M. Mello. Schistosomiasis mansoni: blockage of cercarial skin penetration by chemical agents: I. Naphthoquinones and derivatives. Trans. Royal Soc. Trop. Med. Hyg. 71:133-5, 1977 NATURAL PRODUCTS With J.P. Kutney & W.D.C. Warnock first to report the natural occurrence of glycoside pinocembrin-7-β-neohesperidoside (1970) With J. Couceiro Simões, W.J. Cretney, M. Hearn & J.P. Kutney. The alkaloids of Aspidosperma cuspa: 16-epi-isositsirikine, a new indole base. Phytochem. 15:543-4, 1976 With W. Vichnewski, S.J. Sarti & W. Herz. Goyazensolide, a schistosomicidal heliangolide from Eremanthus goyazensis. Phytochem. 15(1):191-3, 1976 With M.C. Nascimento & W.B. Mors. Um novo grupo de heterociclos oxigenados de Derris araripensis Ducke. Cien. Cult. 24(6):129-30, 1972 With C.C. Fortes, M. Nunes da Rosa & A.P. Seabra. Investigação química da saúva Atta sexdens rubropilosa. Arq. Museu Nac. 54:281, 1971 With M. F. Santos Filho, W.B. Mors & N.T. Nishida. Two new diterpenes from Pterodon pubescens Benth. Anais Acad. Bras. Ciencias 42:97-101, 1970 (Suppl) With L.D. Antonaccio, J.C. Braekman, C. Hootele, C. Van Moorleghem, M. Kaiser & J. Pecher. Indole alkaloids. XVII. Five dihydroindole alkaloids from Aspidosperma verbascifolium. Bull. Soc. Chim. (1969) With B. Tursch, I.S. Guimarães, R. Aplin, A.M. Duffield & C. Djerassi. Chemical studies of marine invertebrates. II. Terpenoids. LVIII. Griseogenin, a new triterpenoid sapogenin of the sea cucumber Haloderma grisea L. Tetrahedron 23:761-7, 1967 With J.M. Ferreira Filho, M. Kitagawa, L.A.Paes Leme & L.J. Durham. Four heptacyclic alkaloids from Aspidosperma species. J. Chem. Org. Soc. 14:1260-6, 1966 With J.A. Joule, M. Ohashi & C. Djerassi. Alkaloid studies. 53. Structures of 9 new alkaloids from Aspidosperma dasycarpon DC. Tetrahedron 21(7):1717, 1965 With A.P. Duarte, Y. Nakagawa, J.A. Joule, K.s. Brown Jr., C. Djerassi et al. Alkaloid studies. L. The alkaloids of twelve Aspidosperma species. Tetrahedron 21(5):1141-66, 1965 With J.A. Joule, H.J. Monteiro, L.J. Durham & C. Djerassi. Alkaloid studies. 48. Structure of apparicine, a novel Aspidosperma alkaloid. J. Chem. Soc. p. 4773, 1965 With M. Ohashi, J.A. Joule & C. Djerassi. The structures of five new Aspidosperma alkaloids related to uleine. Experientia 20(7):363-4, 1964 With M.E.A. Gilbert, M.M. Oliveira, O. Ribeiro, A. Wenkert, B. Wickberg, U. Hollstein & H. Rapaport. The aporphine and isoquinolinedione alkaloid of Ocotea glaziovii. J. Amer. Chem. Soc. 86:684, 1964 With B. Tursch, E. Tursch, I.T. Harrison, G.B.C.T. C. B. Silva, H.J. Monteiro, W.B. Mors & C. Djerassi. Terpenoids. LIII. Demonstration of a ring conformational changes in triterpenes of the β-amyrin class isolated from Stryphnodendron coriaceum. J. Org. Chem. 28(9), 1963 (obtained a series of novel triterpenoids sapogenins) With C. Djerassi, Y. Nakagawa, J.M. Wilson, H. Budzikiewicz & L.D. Antonaccio. The structure of the Aspidosperma alkaloid compactinervine. Cell. Molec. Life Sciences 19(9):467-9, 1963 With J. Aguayo, F. Neville, W.I. Taylor, H. Budzikiewicz, J.M. Wilson & C. Djerassi. Mass spectrometry in structural and stereochemical problems. XX. Carapanaubine, a new alkaloid from Aspidosperma carapanauba and some observations on mass spectra of oxindole alkaloids. J. Am. Chem. Soc. 85(10):1523-8, 1963 With L.D. Antonaccio, N.A. Pereira, H. Vorbuegger, H. Budzikiewicz, J.M. Wilson, L.J. Durham & C. Djerassi. Alkaloid studies. XXXIII. Mass spectrometry in structural and stereochemical problems. VI. Polyneuridine, a new alkaloid from Aspidosperma polyneuron, and some observations on mass spectra of indole alkaloids. J. Am. Chem. Soc. 84(24):5001, 1962 With J. Aguayo Brissolese, J.M. Wilson, H. Budzikiewicz, L.J. Durham & C. Djerassi. The alkaloids of Aspidosperma limae Woodson: aspidolimidine, aspidolimine, demethoxypalosine and aspidocarpine. Chem. Ind. p.1949-50, 1962 With C. Djerassi, L.D. Antonaccio, T. George & A.A. P. Archer. Alkaloid studies. 30. Isolation and constitution of 3 new Aspidosperma alkaloids cylindrocarpine, cylindrocarpidine and pyrifolidine. Tetrahedron 16(1-4):212, 1961 With L.B. Antonaccio, A.A. Archer & C. Djerassi. Alkaloid studies. XXIII. Isolation of four new Aspidosperma cylindrocarpin, refractine, pyrifoline and pyrifolidine alkaloids. Experientia 16:61-2, 1960 PATENTS With J.F.G. Pereira, I.V. Silva Jr., A. Svaiter, A.M. Oliveira Filho, C.E. dos Santos, J.B. Machado & D.F. Teixeira. Device to prevent the action of mosquitoes and other hematophagous insects (1998) With J.F.G. Pereira, I.V. Silva Jr., A. Svaiter, A.M. Oliveira Filho, C.E. dos Santos, J.B. Machado & D.F. Teixeira. Process for obtaining an andiroba based formulation and the use of extract of andiroba husks for prevent the action of mosquitoes
Bartolomeu Lourenço de Gusmão
Bartolomeu Lourenço de Gusmão, Brazilian/Portuguese cleric and inventor (Santos, São Paulo State December 1865 – Toledo, Spain 18 November 1724) Worked as cryptographer INVENTIONS Hot-air balloon (Passarola) considered as the first operational aerostat (1709) much years earlier than Montgolfier Brothers Lens system to sunburn meat (1713) Sucking-pressing pump (1705) Pumping system to drain water from ship’s hold (1707) Machinery for rational exploration of peat-bogs A mill faster than others existing until then Improvements in output of hydraulic mills and sugar engines (1724) Artificial earth coal (1721) Paddle-wheel adjustable to single boats (before Kullo) Patented a hydraulic engine (1724) It is said that he held 9 inventions, but 8 are in imprecise documentation.
Balkrishna Shankar Gogate
Balkrishna Shankar Gogate, Indian helminthologist (Mehidpur, Ujjain District, Madhya Pradesh State 25 October 1906 – ?) DESCRIBED TREMATODA TAXA Genus Proacetabulorchis 1940 Species Gogatea serpentium 1932 Neodiplostomum gumbudia 1940 Ostiolum mehrai 1935 Parabascus macrorchis 1939 Paryphostomum testitrifolium 1934 Petasiger minutissimus 1934 Platynotrema cerivoulae 1939 Proacetabulorchis prashadi 1940 Subvulifer halcyonae 1940 HONORS Gogatea Lutz 1935 (Trematoda)
Atila Gosztonyi
Atila Esteban Gosztonyi, Argentine ichthyologist (fl.1967) DEVELOPED METHODS The use of engine-based laundry “presoaks” for clearing small vertebrates for alizarin red staining of bony tissues. Stains Technol. 59(5):305, 1984 DESCRIBED VALID PISCES TAXA Genera (1977) Aiakas Notolycodes Piedrabuenia Species Aiakas kreffti 1977 Aiakas zinorum 1991 with Anderson Lycenchelys bachmanni 1977 Lycodonus malvinensis 1981 Notolycodes schmidti 1977 Piedrabuenia ringueleti 1977 Plesienchelys stehmanni 1977 Fossil Genypterus valdesensis 2000 with Riva Rossi & Cozzuol HONORS Gosztonyia Matallanas 2009 (Pisces)
Arturo Gomez Pompa
Arturo Gómez Pompa, Mexican / US botanist and ecologist (Ciudad de Mexico 21 October 1934 – California 17 September 2025) Regarded as world authority on ecology of tropical forests, studying their mechanisms of regeneration (about 7,900 citations by Google Scholar) Developed a method for studying ecology in tropical areas Un método para el estúdio ecológico en regiones tropicales. Mem. Congr. Mex. Botanica (1963) Authored a paper became a classical With S. Guevara & C. Vazquez Yanes. The tropical rain forest: a non-renewable resource. Science (1972) Developed a botanical database using computers for storage and organization of the information independently of Theodore Crovetto in United States (1967) With L. Alonso & L. Scheinvar. Sistema automático de recuperación de información para el Herbario Nacional del Instituto de Biologia. Anales Inst. Biol. 38(1):203-50, 1967 With O.E. Plummer. Video floras: a new tool for systematic botany. Taxon 39(4):576-85, 1990 Papers with more than 100 citations With P. Lubinsky, S. Bory, J. Hernandez Hernandez & S.C. Kim. Origins and dispersal of culivated Vanilla (Vanilla planifolia Jacks., Orchidaceae). Econ. Bot. 62(2):127-38, 2008 With P. Lubinsky, K.M. Cameron, M.C. Molina, M. Wong, S. Lepers-Andrejewski et al. Neotropical roots of a Polynesian spice: the hybrid origin of Tahitian vanilla (Vanilla tahitensis) (Orchidaceae). Am. J. Botany 95(8):1040-7, 2008 With M.F. Allen & E.B. Allen. Effects of mycorrhizae and non-target organisms on restoration of a seasonal tropical forest in Quintana Roo, Mexico: factors limiting tree establishment. Restor. Ecol. 13(2):325-33, 2005 With E.B. Allen, M.F. Allen, L. Edgerton-Warburton & L. Corkidi. Impacts of early and late-seral mycorrhizae during restoration in seasonal tropical forest, Mexico. Ecol. Appl. 13(6):1701-17, 2003 With A. Kaus. From pre-Hispanic to future conservation alternatives: lessons from Mexico. Proceed. Natl. Acad. Sci. USA 96(11):5982-6, 1999 With R. Whitkus, M. de la Cruz & L. Mota Bravo. Genetic diversity and relationships of cacao (Theobroma cacao L.) in Southern Mexico. Theor. Appl. Genetics 96(5):621-7, 1998 With A. Kaus. Taming the wilderness myth. BioScience 42(4):271-9, 1992 With J.S. Flores & M.A. Fernandez. The sacred cacao groves of the Maya. Latin Am. Antiquity 1(3):247-57, 1990 On Maya silviculture. Mexican Studies 3(1):1-17, 1987 With J. Salvador Flores & V. Sosa. The’pet kot’: a man-made tropical forest of the Maya (1987) With C. Vazquez-Yanes. Studies on the secondary succession of tropical lowlands: the life cycle of secondary species (1974) With S. Guevara. Seeds from surface soils in a tropical region of Veracruz, Mexico. J. Arnold Arbor. 53(3):312-35, 1972 Posible papel de la vegetación secundaria en la evolución de la flora tropical. Biotropica 12(1):125-35, 1971 DESCRIBED PLANTAE SPECIES Diospyros riojae 1964 Hydrangea nebulicola 1968 with Nevling Hymenophyllum saenzianum 1970 Isoetes tryoniana 1970 Polypodium rodriguezianum 1970 Robinsonella mirandae 1962 Thelypteris villana 1970 Yucca lacandonica 1962 with Valdes HONOURS Golden Ark Medal, Government of Netherlands (1984) Tyler Prize for Environment (1994) Chevron Conservation Medal David Fairchild Medal, US National Garden
Arnaldo Gabaldón
Arnaldo José Gabaldón Carrillo, Venezuelan parasitologist and tropical physician (Trujillo 01 March 1909 – Caracas 01 September 1990) Considered world authority in paludism and gained recognition for his studies about biology, ecology and behavior of mosquitoes ACHIEVEMENTS Authored 163 scientific works Proposed a method for measuring hepatomegalies Presentación de un metodo para la medición de hepatomegalias. Gac.Med. Caracas 40:219-220, 1933. A method for mounting anopheline eggs. Jour. Parasit. 25(3):281, 1939. With G. Ulloa. A quick and easy method to determine the sporozoite index in mosquitoes. Trans. Royal Trop. Med. Hyg. 72(3):311-12, 1978. Proposed a new climate zone named paraequatorial zone With P. Cova-Garcia. Zoogeografia de los anofelinos em Venezuela. III. Relaciones com el terreno y el clima. Tijeretazos sobre malaria 10(3):164-79, 1946. DESCRIBED Subgenus Plasmodioides 1985 (with Ulloa & Zerpa) and 5 Protozoa species 6 Diptera species HONORS Darling Medal (1960)