Aníbal Cipriano da Silveira Santos
Aníbal Cipriano da Silveira Santos, Brazilian neuro-psychiatrist (São Roque, São Paulo State 17 March 1902 – São Paulo 16 August 1979) Authored 53 papers ESTABLISHED A classification of mental processes in 24 clinical tables The dependence relationships between frontal lobe areas and posterior cortical zones The identity between neurophysiologic and psychical stimuli LINKS http://www.scielo.br/scielo.php?pid=S0004-282X1979000400014&script=sci_arttext (in Portuguese)
Antonio Sesso
Antonio Sesso, Brazilian morphologist and microscopist (São Paulo 08 August 1930 – ACHIEVEMENTS Performed the first observation about structural genesis of membranous compartments originated from endoplasmic reticulum With S.R.R. B. Azimovas, M.A. Ferreira & W.T. Correa. Freeze-fracture and thin section study of the rough ER-Golgi interface in the pancreatic acinar cell. Resemblance betwwen the intermembranal architecture of the outermost Golgi cisterna and the post-rough ER vesicular and tubular elements. Biol. Cell. 81(2):165-76, 1994 With others showed that rupture of the outer mitochondrial membrane seen in apoptotic cells results of the loss of the selective permeability of the inner mitochondrial membrane (2004-12) With others showed vesicular clusters as a third similarity between mitosis and apoptosis in Tissue & Cell 31(3):357-71, 1999 Observed that mycoplasma enters cells through periphery METHODS Developed procedure for high resolution autoradiography (1963) With H. Haselmann, S. Raia, L.C. U. Junqueira et al. A method for microcinematography of secretory processes in the pancreas of the white mouse. Mikroskopie 8(11-2):400-5, 1953 With R. Taga & E.P. Alvares. Morphometric evaluation of the volume of the spherical and nonspherical cell nuclei in semithin plastic embedded sections. Rev. Fac. Odont. Bauru 2(1):41-4, 1994 With R. Taga & L.C. Pardini. Avaliação da homogeneidade da amostra em morfometria. Rev. Fac. Odont. Bauru 6(4):57-60, 1994 (a method for verifying the samples homogeneity in morphometric evaluation) With R. Taga & L.C. Pardini. Grau de precisão na avaliação morfométrica do número de células. Rev. Fac. Odont. Bauru 6(4):67-70, 1994 (a method for estimating the precision degree in the morphometric absolute cell number evaluation)
Angel Spotorno
Angel Enrique Spotorno Oyarzún, Chilean mammalogist and geneticist (1943 – DESCRIBED NEW TAXA Mammalia Loxodontomys pikumche 1998 with Cofre, Manríquez, Vilina, Marquet & Walker Eligmodontina dunaris 2013 with Zuleta, Walker, Manríquez, Valladares & Marín Lagidium ahuacaense 2009 with Ledesma, Wener & Albuja Reptilia Liolaemus molinai 2002 with Valladares, Etheridge, Schulte & Manríquez Siphonaptera Agastopsylla nylota euneomys 1984 with Lewis HONORS Subgenus Angelomys Teta, Cañon, Patterson & Pardiñas 2016 (Mammalia)
Andrés Straffon Osorno
Andrés Ernesto Straffon Osorno, Mexican pediatrician (10 January 1925 – Ciudad de Mexico 23 August 2012) Authored the first monograph about preputium (1982) Showed that the prepuce is a sphincter-similar plexiform smooth muscle (Straffon-Vargas dartos) Elaborated neostigmine test for pathognomonic diagnosis of congenital pyloric stenosis (1959) Developed a new technique for synechotomy Patented a synechotomy forceps and 4 distinct kinds of tongue depressors
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