Andrés Stoppani
Andrés Oscar Manuel Stoppani Bahia, Argentine biochemist (Buenos Aires 19 August 1915 – Buenos Aires 18 March 2003) Authored about 400 papers ACHIEVEMENTS Demonstrated the existence of a physiological control on melanotrophic hormone secretion in Amphibia Estudios fisiologicos y farmacologicos sobre los melanoforos de los batracios. Doctoral Thesis, Universidad de Buenos Aires (1942) Reported the essential role of thiol groups on catalytic activity of certain enzymes With R. Vallejos, C. Brignone, J. Brignone & A. Boveris described the regulatory actions of insulin and steroidal hormones on mitochondria functions With E. Ramos & J. Boiso clarified the transport of amino acids in yeasts and Trypanosoma cruzi Described mitochondrial respiratory chain of Trypanosoma cruzi and its antioxidants enzymes deficiency With Vidal discovered isozyme inhibition due to a peptide present in the same venom Performed important contributions to knowledge of mitochondrial respiration mechanisms in mammalian organs Performed contributions about biochemical mechanisms in chemotherapy using orthoquinones for treatment of Chagas disease and cancer Important works on metabolic biochemistry, genetics and immunology of Trypanosoma cruzi HONORS Member, Nobel Committee of Chemistry, Royal Swedish Academy of Sciences (2002) President, Section of Hormonal Regulation of Enzymatic Processes, VI International Congress of Biochemistry, New York (1964) Houssay Prize, OAS (1989) BIBLIOGRAPHY Saber y Tiempo 4(15):150-7, 2003
Alvaro Alberto da Mota e Silva
Alvaro Alberto da Mota e Silva, Brazilian scientist and admiral (Rio de Janeiro 22 April 1904 – Rio de Janeiro 31 January 1976) INVENTED Rupturite (1917) A new rupturite (1920) Super rupturite (1923) Alexandrinite Process for giving fitness and hydraulicity to explosives (1923) Toxic polyvalent dyes (1923) Antivegetative polyvalent dyes (1925) Obtained the production of contralite and acordite monopolized until then by Germans Um processo expedito para a determinação da força das pólvoras sem fumaça (1941) His father Alvaro Alberto da Silva, Brazilian physician and scientist (Rio de Janeiro 1861 – Rio de Janeiro 13 September 1908) Discovered guanidine picrate, cresilate and nitrocresilate Showed that guanidine prevents the reaction of chlorates, nitrates and other compounds on picric acid Discovered salt-derivate and guanidine explosives Recommended therapeutic use of sodium borate and lime borate for certain affections of digestive apparatus His researches about explosives gained great repercussion abroad being cited by Richard Escalos and by Colver in his book High Explosives INVENTIONS A safety explosive (1901) Thermo-chemical Disinfector for bath, water-closet and urinal (1905) Brazilite (explosive) Clinical aero-dosimeter for urine analysis (received the Great Prize in Chicago, 1902) Physiometer Extracting gas volumeter An explosive (1891) Gate for horse race (1891) with O. Bragana Varnishes (1891 & 1892) Brick Making (1891) with E. Becker Sugar and milk extraction (1891) A device for surveying butter
Aloysio Sehnem
Aloysio Sehnem, Brazilian botanist and father (Santa Cruz do Sul, Rio Grande do Sul State 1912 – São Leopoldo, Rio Grande do Sul 19 March 1981) From German descent DESCRIBED VALID PLANTAE SPECIES Pteridophyta Adiantopsis minutula 1972 Adiantopsis oculta 1959 Adiantopsis perfasciculata 1961 Alsophila acantha 1978 Alsophila campestrium 1978 Alsophila cipoensis 1978 Alsophila kleinii 1978 Alsophila reitzii 1978 Alsophila serrae 1978 Anemia costata 1974 Anemia hatschbachii 1974 Anemia pinnata 1974 Anemia rigida 1974 Anemia schaefferi 1974 Anemia cipoensis 1974 Asplenium araucarieti 1963 Asplenium spannagelii 1963 Blechnum simile 1968 Doryopteris angustata 1972 Doryopteris excisa 1961 Doryopteris intermedia 1961 Doryopteris procera 1961 Doryopteris rivalis 1961 Doryopteris scalaris 1961 Dryopteris abyssi 1979 Dryopteris oligophylloides 1979 Dryopteris oreocharis 1979 Dryopteris pleiophylla 1979 Dryopteris podotricha 1979 Dryopteris sinuata 1979 Elaphoglossum gertii 1979 Hymenophyllum delicatulum 1956 Bryophyta Hookeriopsis bartramii 1969 Hookeriopsis heterophylla 1978 Macromitrium divortiarum 1978 Meteorium squamidioides 1980 Orthostichopsis latifolia 1972 Schlotheimia perserrata 1978 Squamidium angustifolium 1980 Squamidium cuspidatum 1980 Syrrhopodon stenophyllus 1972 Tetraplodon tomentosus 1976 Thamniopsis stenodictyon Thuidium patrum 1976 Zygodon patrum 1978 HONORS Sehnemobryum Lewinsky-Haapasaari & Hedenäs 1998 (Musci)
Alfredo Sordelli
Alfredo Sordelli Anette, Argentine microbiologist (Buenos Aires 28 January 1891 – 15 December 1967) From Lombardian father ACHIEVEMENTS Demonstrated that agar and other carbohydrates can be antigens and stimulate precipitins Demonstrated existence of a specific lipoid that fixates antibodies on heterogenetic antigen His preparation and titration methods of bacterial toxins were adopted worldwide Established titration methods of anti-diphtheria, anti-dysentery, anti-gangrene, anti-ophidic and other sera Elaborated and perfected economic and rapid immunization for obtaining sera of high efficiency Developed a technique for obtaining anti-diphtheria serum was later adopted by J. Bordet and perfected by Ramon With A. Manzullo developed a method for diagnose of diphtheria Developed methods for the preparation of insulin and other hormones such as estrogens and adrenaline Imagined a method for isolating psittacosis virus With Soriano, Ferrari & Torino described Clostridium saprotoxicum 1934 Discovered Clostridium sordellii, causative agent of gas gangrene (1922) Created a method for measuring minute tensions With R. Wernicke. Um metodo de medida de pequeñas tensiones. Anal. Asoc. Quim. Arg. 1:8, 1913 A new method for the preparation of serums on a large scale Demonstrated that heteroantigen is composed of two parts (lipid and protein), a concept later retrieved by Landsteiner (1918-25) With Deulofeu & Wernicke characterized Forssman antigen as a lipidic complex associated to a carrier protein Naturaleza del antigeno heterogenetico. Rev. Asoc. Med. Arg. 37:570, 1924 Sur la nature de l’antigéne hétérogénétique. C.R. Soc. Biol. Paris 92:898, 1925 EPONYMY Sordelli antitoxin (used against gas gangrene) Sordelli technique for production of sera and vaccines anti gas gangrene Sordelli method for preservation of microbial cultures by desiccation in vacuum Sordelli-Miravent-Negroni culture medium (1926) Sordelli-Deulofeu technique for preparation of insulin (1923) Sordelli toxoid preparation technique Sordelli-Miravent reaction for diagnosis of syphilis (1930) Sordelli tubes
Alfonso Splendore
Alfonso Splendore, Italian-born Brazilian physician (Fagnano Castelo, Cosenza province 25 April 1871 –São Paulo 30 April 1953) ACHIEVEMENTS First reported case of animal infection by sporotrichosis With A. Lutz. Sobre uma micose observada em homens e ratos. Rev. Med. S. Paulo 21:433-50, 1907 Described pathogeny, pathology and symptomatology of sporotrichosis and discovered the possibility of growing Sporotrichium schenckii in vitro (1907) With A. Lutz. Sopra una micosi osservata in uomini e topi: contribuzioni alla conoscenza delle cosi delle sporotricosi. Rev. Med. São Paulo (1907); Annali d’Igieni Sperimentali 4, 1907; Centralblatt fur Bakteriol., Parasitik. Infectionskr. XLV, 1907 & XLVI Bd. 1908 Contribuzione allo studio delle miasi. Nuova specie di mosca antropofaga. Rev. Med. S. Paulo 3, 1908; Arch. Parasitol Paris (1908) Discovered Toxoplasma gondii (1908) independently from Nicolle and Manceaux Un nuovo protozoo parasita dei conigli incontrato nelle lesioni anatomiche d’una malattia che ricorda in molti punti il Kala-azar dell’uomo. Rev. Soc. Scient. S. Paulo 3(10-2):109-12, 1908 Sur un nouveau protozoaire parasite du lapin. Bull. Soc. Path. Exot. 2(8):462-5, 1909 Described mucous form of American cutaneous leishmaniasis, a new clinical form of leishmaniasis (1911) First clinical and parasitological study of mucosal lesions of cutaneous leishmaniasis Bouba-Blastomicosi-Leishmaniosi (Nota sopra alcuni affezione framboesiche osservati in Brasile). Archiv f. Schiffs und Troppen Hygiene 15:105-13, 1911 Leishmaniosi con localizzazione nelle cavitá mucose (Nuova forma clinica). Bull. Soc. Path. Exot. 5:411-38, 1912 Isolated Paracoccidioides brasiliensis etiologic agent of paracoccidiodomycosis (1913) Lutz-Splendore-Almeida disease or paracoccidioidomycosis Zymonematosi com localizzazzione nella cavitá della bocca, osservata in Brasile. Bull. Soc. Path. Exot. 5:313-9, 1912 Un’affezione micotica com localizzazzione della mucosa della bocca, osservata in Brasile, determinata da funghi appartenentia alla tribu degli Exoascei (Zimonema brasiliense n.sp.) 1912 Splendore-Hoeppli phenomenon or Splendore reaction or Splendore corpuscles (1908) Sobre a cultura d’uma nova especie de cogumello pathogenico. Rev. Soc. Scient. São Paulo 3:62, 1908 DESCRIBED PROTOZOA SPECIES Coelosporidium periplanetae 1903 with Lutz Giardia pitymysi 1920 Glugea caeculiae 1904 with Lutz Glugea halesidotidis 1904 with Lutz Glugea heliotidis 1904 with Lutz Glugea hydriae 1904 with Lutz Glugea micrattaci 1904 with Lutz Microsporidium balantidii 1908 with Lutz Microsporidium distomi 1908 with Lutz Microsporidium ephemerae 1908 with Lutz Microsporidium girardini 1903 Nosema astyroe 1903 Nosema chironomi 1908 Nosema erippi 1903 Nosema eubules 1903 Nosema junonis 1903 Nosema lophocampoe 1903 Nosema periplanetoe 1903 Nosema vanilloe 1903 Polydispyrenia simulii 1908 Trypanosoma hypostomi 1910 See complete bibliography in https://docs.google.com/viewer?a=v&q=cache:IFEFG0nsV3oJ:revistaseletronicas.pucrs.br/ojs/index.php/scientiamedica/article/viewFile/5750/5049+alfonso+splendore&hl=pt-BR&gl=br&pid=bl&srcid=ADGEESjMKr5HgoFHSw8qeNeLkk_-xrhc0UBgeSWHXpFgBXrq-CvKrESogm_LPX37cEMkif37xJ-xXoU4wAceiQmDWRpxP88oBx-ADVWWlQt-FoOSTCkuoQyCW-IQ2dDe9pmiveE-u4E_&sig=AHIEtbRWdccUWcqaaear9Nhc9TQoMcBiig
Alexander Frank Skutch
Alexander Frank Skutch, US-born Costa Rican ornithologist and philosopher (Baltimore, Maryland 20 May 1904 – San Isidro del General 12 May 2004) Son in law of naturalist Charles H. Lankester Recognized as the world’s foremost expert on Neotropical birds of Central America Authored over 200 papers and 40 books ACHIEVEMENTS Studied life habits for about 300 bird species Presented the diversity of reproductive rates among species Demonstrated that the procreation of tropical birds is slower than that of the same families in the Northern Hemisphere Explained the differences in size between litters of Neotropical and northern birds Discovered cooperative brooding (1935) Defined associations and interactions that some animal species establish with their environment Collected plant species unknown to science in Central America HONORS Skutchia Pax & K. Hoffmann 1937 (Plantae) Skutchia Willis 1968 (Aves)