Pedro de Almeida Magalhães, Brazilian physician (Vassouras, Rio de Janeiro 27 November 1864 – Benjamin Constant, Minas Gerais State 13 February 1909)

Described Almeida Magalhães sign

Percussão da fosseta de Mohrenheim para o diagnóstico precoce da tuberculose

First to report intermittent splitting in second heart sound and bruit de gallop in beriberi (Almeida Magalhães sign)

O coração no beriberi (1901)

Roberto Ruhman Daher, Brazilian gastroenterologist (Ipameri, Goiás State 1936 – Goiânia 13 May 2007)

From Lebanese descent

He was acting mayor of Goiania city (1977)

Known internationally for his work on hepatic parasitic infectious diseases

SOME BIBLIOGRAPHY

Digestive manifestations in yellow fever. Dig. Dis. Sci. 131:3825, 1986

With W.M.P. Vasconcelos & V.M. Cardoso. Fígado e blastomicose sul-americana. J. Bras. Med. 25:83, 1973

With J. Doles. Valor da determinação da atividade enzimática do soro sanguíneo no diagnóstico das enfermidades hepáticas. Rev. Goi. Med. 18:139, 1972

With W. Barbosa & A.R. Oliveira. Forma linfático-abdominal da blastomicose sul-americana. Rev. Inst. Med. Trop. S. Paulo 10(1):16-27, 1968 

Osmar da Silva Fontenele, Brazilian fisheries biologist (Fortaleza 18 April 1915 - 1993)

Simplificação do processo de incubação artificial de ovos livres de peixe (Improvement of artificial incubation of fish free eggs) 1978

Um caracter secundario extragenital nos tucunarés (Actinopterygii, Cichlidae). Rev. Bras. Biol. 8(2):185-8, 1948

Domingos José Nogueira Jaguaribe Filho, Brazilian physician (Fortaleza 02 November 1847 – Santos, São Paulo State 14 November 1926)

He was Correspondent professor at Ecole de Psychologie de Paris

Invented Velo-aereo, a dirigible aerostat consisting of two balloons with wings (1897)

Hebe Helena Labarthe Martelli, Uruguayan-born Brazilian biochemist and microbiologist (31 May 1919 – 201?)

First in the world to study the production of vitamin A by yeasts

Isolated a new strain of bacteria that readily decomposes sulfonic compounds (1967)

Oxidation of sulphonic compounds by aquatic bacteria isolated from rivers of the Amazon region. Nature 216 (5121):1238-9, 1967

With S.M. Souza. Biochemistry of sulfonic compounds. III. Formation of a two carbon compounds during the oxidation of sulfo-acetate by a Pseudomonas strain. Biochim. Biophys. Acta 208:110-5, 1969