Darrel Plowes
Darrel Charles Herbert Plowes, South African born Zimbabwean botanist and ornithologist (Estcourt, Natal Province 04 April 1925 – DESCRIBED ASCLEPIADACEAE TAXA Genera Anomalluma 1993 Australluma 1995 Borealluma 1995 Caudanthera 1995 Crenulluma 1995 Cryptolluma 1995 Cylindrilluma 1995 Hermanschwartzia 2003 Larryleachia 1996 Lavrania 1986 Monolluma 1995 Neopectinaria 2003 Pendulluma 2013 Pleuralluma 2008 Sanguilluma 1995 Saurolluma 1995 Somalluma 1995 Spiralluma 1995 Sulcolluma 1995 Vadulia 2003 Species 42 Aves Valid Subspecies Emberiza capensis smithersii 1951
Crodowaldo Pavan
Crodowaldo Pavan, Brazilian geneticist (Campinas, São Paulo State 01 December 1919 – São Paulo 03 April 2009) With T. Dobzhansky discovered the first case of morphological polymorphism in Drosophila sp. (1943) Two types of heterochromatin in Drosophila nebulosa. Proceed. Nat. Acad. Sciences 32:137-45, 1946 With M. Breuer proposed that puffs in the polytene chromosomes could be a cytologic manifestation of genes in activity and showed that the genes are the same in all tissues of a given individual however distinct genes are turned on in distinct tissues or even in the same tissue at different times during the development (1952) independently from German W. Beermann Polytene chromosomes in different tissues of Rhynchosciara. Journal Heredity 43:150-7, 1952 With M. E. Breuer. Autoradiography of polytene chromosomes of Rhynchosciara angelae at different stages of larval development. Nature 180:983, 1957 With M. Breuer described for the first time the phenomenon of gene amplification (Pavan-Breuer phenomenon) Behavior of polytene chromosomes of Rhynchosciara angelae at different stages of larval development. Chromosoma 7:371-86, 1955 Showed that there is RNA synthesis in chromosomal puffs With M. Breuer. Differences in nucleic acid content of the loci in polytene chromosomes of Rhynchosciara angelae according to tissue and larval stages. In G. Schreiber. Symposium on Cell Secretion, Belo Horizonte, Brazil. Pp. 90-9, 1955 & Bol UFMG (1955) Performed discoveries concerning lethal genes behavior Showed that radioactive contamination broke out a natural aging-like process Showed unknown bacteria in seeds and birds eggs (2004) Described 63 Diptera species HONOURS Full Professor with Tenure, Texas University (1968-75)
Clovis Paiva
Clóvis de Azevedo Paiva, Brazilian ophthalmologist (São Bento do Una, Pernambuco State 16 July 1917 – Recife 20 June 2000) Praised for famous names in ophthalmology like Joaquín Barraquer and Louis J. Girard SOME BIBLIOGRAPHY With C. Paiva Filho. Estudo da pressão média da artéria oftálmica e da pressão de perfusão ocular em indivíduos submetidos a cicloergometria. Arq. Bras. Oftalm. 62(1):44-7, 1999 With V. Maia & J. Owen. Córnea verticillata associada a doença de Fabry. Rev. Bras. Oftalm. 32:471-9, 1973 Lenticone anterior (lentiglobo). Rev. Bras. Oftalm. 31:193-5, 1972 Síndrome de Goldenhaar (displasia oculo-auriculo-vertebral). A propósito de um caso. Rev. Bras. Oftalm. 30(2):139-45, 1971 Edema papilar. Causas locais e sistêmicas. Neurobiologia 33:185-92, 1970 With A. Gómez. Sobre um caso de fibroma puro de órbita. Arch. Soc. Amer. Oftalm. Optom. (196?) With J. Pondé Filho, H.B. Coutinho & C.P. dos Santos. O uso da eletroforese em gel de amido na identificação da colinesterase presente no humor aquoso humano. Rev. Bras. Oftalm. 21:213-7, 1962 The use of alpha-chymotrypsin in intracapsular cataract extraction. Rev. Bras. Oftalm. 20:281, 1961 Os novos antibióticos usados na terapêutica oftalmológica. Arq. Bras. Oftalm. 23:126, 1960 With A. Chaves Batista & A. Gomes. Endoftalmite micótica pós-operatória por Hyalopus bogolepoffi. Rev. Bras. Oftalm. 19:193-202, 1960 5 anos de prática na iridencleisis. Rev. Bras. Oftalm. 14(1):3-14, 1955 Experiencia com a operação de Ridley. Rev. Bras. Oftalm. 13:137-45, 1954 With D.T. Lucena, R. Salazar & R.J. Marques. Primeiro caso agudo de doença de Chagas em Pernambuco. Rev. Bras. Med. 5:417-9, 1953 Enxerto de córnea (ceratoplastia). Rev. Bras. Oftalm. 16:19-41, 1949 Sobre a ação hipnotizante da iridencleisis de Holt no glaucoma primário simples. Thesis Distribuição geográfica do tracoma em Pernambuco (1946) HONOURS Member of Merit, Instituto Barraquer
Clodomiro Picado
Clodomiro Picado Twight, Costa Rican biologist (Dept. San Marcos de Jinotepe, Nicaragua 17 April 1887 – San Jose de Costa Rica 16 May 1944) From Scottish descent Authored over 115 scientific works Developed various anti-venom sera Authored Poisonous serpents of Costa Rica: their venoms, antiophidic therapy (1931) with international repercussion Demonstrated inhibitory action of fungi Penicillium sp. on bacterial growth before Fleming (1923) and isolated and described its products (1923-7) Pioneer on theory of ageing immunology demonstrating the existence of autoantibodies as normal constituents of blood serum that play a role in a series of successive hormonal cycles that characterizes the human life (1937) Demonstrated that plants could produce antibodies (1921) Authored important studies on bacterial diseases affecting beans, those causing coffee fermentation and others demonstrating beneficial effects on iodine Developed a new method for bacteria staining (1916), a new serological reaction for paludism (1929) and a new treatment of smallpox (1931) With G. Naranjo enunciated a new biological principle applied to hypothyroidism (1941) Used glycoside cedrin (from Simaba cedron) for fighting paludism (1930) Patented a procedure for sanitary matters of residues and improvement of coffee quality SOME BIBLIOGRAPHY Biologica hematológica elemental comparada (1943) Investigaciones sobre fisiopatologia tiroidea (1943) Vacunación contra la senectud precoz (1937) Vacuna curativa no especifica. Rev. Soc. Biol. Paris (1927) Sobre la acción a distancia de los hongos fitopatógenos (1923) Los micróbios del látex. Comp. Rend. Soc. Biol. (1921) Les Bromeliacees Epiphytes consideres comme milieu biologique. Doctoral Thesis (1913) DESCRIBED VALID TAXA Genus Chirocladius 1913 (Diptera) Species Scirtes championi 1912 (Coleoptera) Metriocnemus abdominoflavatus 1913 (Diptera) Leptostyla gibbifera 1913 (Hemiptera) Chirocladius pedipalpus 1913 (Diptera) Ablabesmyia costarricensis 1913 (Diptera) Fusarium anisophilum 1932 (Fungi) HONOURS Correspondant Member, Societé de Pathologie Exotique de Paris (1923) & Societé de Biologie de Paris (1933) World Intellectual Property Organization, Gold Medal (2000) posthumous BIBLIOGRAPHY Rev.Biol.Trop. 35(1):5-14,1987 Revista Medica de Costa Rica 121(6):130-42, 1944 LINKS http://web.catie.ac.cr/informacion/RMIP/rev64/biografia.htm http://www.binasss.sa.cr/revistas/rmcc/rmedica/v6n121/art6.pdf (bibliography)
Clemente Pereira
Clemente Pereira, Brazilian zoologist (São João da Bocaina, São Paulo State 01 January 1906 – São Paulo 30 October 1958) Authored 106 works being 70 of them scientific DEVELOPED METHODS/TECHNIQUES/DEVICES A practical apparatus for culture and growth of monoxenic nematode larvae (1935) A dispositif for xenodiagnosis for Chagas disease (1939) With Z. Vaz a simple and rapid process for in toto-mounting of nematodes in balsam (1934) A method for diaphanization of arthropods using an alcaline solution of sodium carbonate (1940) With M.P. de Castro a method of argentic impregnation for studying internal morphology of microscopic invertebrates in toto-mounting (1943) With H. Medina a staining technique for Leishmania specimens (1945) With Z. Vaz developed a technique for staining parasites With L. Travassos Filho proposed employing Armadillidium vulgare (Crustacea) in preparation of vertebrate cranes (1934) DESCRIBED GENERA Nematoda Acanthorhabdias 1927 Iheringascaris 1935 Neocucullanus 1928 with Travassos & Artigas Paraleiuris 1929 with Vaz Travnema 1938 Trematoda Choledocystus 1941 with Cuocolo Creptotrema 1928 with Travassos & Artigas Genarchella 1928 with Travassos & Artigas Metagorgoderina 1940 with Cuocolo Neogorgoderina 1940 with Cuocolo Parahemiurus 1930 with Vaz Teratotrema 1928 with Travassos & Artigas Travtrema 1929 Turbellaria Temnohaswellia 1941 with Cuocolo Temnomonticellia 1941 with Cuocolo Protozoa Amylophorus 1942 with Almeida Acari Rhinoptes 1951 with Castro HONORS (Nematoda) Clementeia Artigas 1930 Mentecle Travassos & Kloss 1958
Ciro Peluffo
Ciro Antonio Peluffo Berutti, Uruguayan microbiologist (Montevideo 19 April 1909 – 07 July 2009) Developed a simplified method for serological diagnosis of salmonellosis in Metodo simplificado de diagnostico serologico de las salmonelas With E. Hormaeche modified Kristensen-Lester-Jurgens green agar medium (1959) With E. De Robertis invented a special chamber to observe the motility of bacteria DESCRIBED SALMONELLA SEROVARES Salmonella arechavaleta 1944 with Hormaeche & Pereyra Salmonella berta 1938 with Hormaeche & Salsamendi Salmonella butantan 1946 with Bier, Amaral & Biocca Salmonella carrau 1944 with Hormaeche & Pereyra Salmonella cerro 1938 with Hormaeche & Salsamendi Salmonella gaminara 1939 with Hormaeche Salmonella grumpensis 1944 with Hormaeche & Pereyra Salmonella montevideo 1936 with Hormaeche