Hsiang-Tung Chang
Hsiang-Tung Chang or Xiang-Tong Zhang, Chinese neurophysiologist (Cheng-Ting, Hopei Province 27 November 1907 – Shanghai 11 November 2007) With J. Fulton first to show that voluntary muscles were all in the motor cortex in Representation of muscles in the motor cortex of the macaque. J. Neurophysiol. (1947) With D. Lloyd demonstrated that afferent fiber diameters of each muscle nerves were distributed into three groups in J. Neurophysiol. (1948) First to demonstrate an afferent-efferent neuronal circuit between the cortex and the thalamus (1948) Discovered photic potentiation effect or Chang effect (1950) Proposed that dendrites were able to conduct action potentials (1951) First to propose a fundamental distinction between axosomatic and axodendritic synapses (1952) Formulated the neuronal mechanism underlying the evoked potential (1959) Discovered a sequence of late waves that follow the evoked potentials
Horacio Martins Canelas
Horacio Martins Canelas, Brazilian neurologist (São Paulo 30 May 1919 – São José dos Campos, São Paulo State 14 December 1995) Authored internationally recognized contributions to copper and ceruloplasmin metabolism in Wilson disease Developed a method for studying copper in blood With F.B. De Jorge & Costa-Silva. Contribuição ao estudo do metabolismo do cobre.I: Metodologia da determinação do cobre em materiais biológicos. Rev Paul Med 61:350-355, 1962 Named neuroachylias or achylic demyelinizing neuropathies in neuroanaemic syndrome Disturbios neurologicos nos estados carenciais aquilicos. Arq. Neuro-Psiqu. 10:1-40, 1952 Proposed the search for metachromatic bodies in these regions as a help in diagnosis of this disease With O.D. Escalante, K. Iriya & F.B. de Jorge. The diagnosis of metachromatic leucodystrophy during life: metachromatic lipids in saliva and cerebrospinal fluid sediments and in the parotid glands. Arq. Neuro Psiqu. 22(2), 1964 SOME BIBLIOGRAPHY With F.B. De Jorge & A. Spina-França. Contribuição ao estudo do metabolismo do cobre. II: Valores normais do cobre no sangue, líquido cefalorraqueano e urina. Rev Paul Med 62:125-128, 1963 With F.B. De Jorge. Contribuição ao estudo da ceruloplasmina. I: Valores normais no soro sangüíneo. Arq Neuropsiquiatr 22:271-276, 1964 With F.B. De Jorge, J.C. Dias & L. Cury. Studies on cooper metabolism. III: Cooper contents of saliva, pancreas, and salivary glands. Clin Chim Acta 9:148-150, 1964 With F.B. De Jorge, O.D. Escalante et al. Hepatolenticular degeneration: clinical and biochemical study. Arq Neuropsiquiatr 21:229-250, 1963 With F.B. De Jorge & W.A.Tognola. Metabolic balances of cooper in patients submitted to vegetarian and mixed diets. J Neurol Neurosurg Psychiat 30:371-373, 1967 BIBLIOGRAPHY Arqu.Neuro-Psiqu. 54(1):159-61, 1996 (available online)
Horacio Homero Camacho
Horacio Homero Camacho Viale, Argentine micropaleontologist (Buenos Aires 02 April 1922 – 01 October 2015) Authored over 116 publications and communications DESCRIBED FOSSIL MOLLUSCA TAXA Subfamily Struthiolarellinae 1980 with Zinsmeister Genera Austroimbricaria 1992 with Oliveira Austroproconulus 1994 with Reichler Austrosphaera 1949 Charenopus 1953 Iheringinucula 1996 with del Rio Macrotrigonia 1985 with Oliveira Monteleonia 1998 with del Rio Ortmannia 1995 with Chiesa & Parma Patagumbonium 1994 with Reichler Charenopus 1953 Protohemichenopus 1953 Species 65 Others Ophiura elegantoides 1949 with Furque (Echinodermata) HONORS Camachoaster Mooi, Martínez, Del Río & Ramos 2018 (Fossil Echinodermata)
Hildebranda Angela Castellaro
Hildebranda Angela Castellaro, Argentine paleontologist (Arrecifes, Buenos Aires Province 22 May 1913 – Buenos Aires 15 September 1995) DESCRIBED FOSSIL SPECIES With Leanza 1955 Astarte notica Chlamys subvacaensis Chlamys wayensis Crassatella chilena Cretirhynchia transatlantica Exogyra trivialis Homomya antofagastensis Homomya subandina Lucina subporrecta Pleuromya harringtoni Sarcinella occidentalis Volsella weaveri Alone Chonetes stappenbecki 1958 HONORS Castellaroina Boucot 1972 (Fossil Brachiopoda)
Hervásio Guimarães de Carvalho
Hervásio Guimarães de Carvalho, Brazilian physicist (Araguari, Minas Gerais State 10 July 1916 – Rio de Janeiro 17 November 1999) Published more than 150 papers in reviews of international transmission ACHIEVEMENTS Developed and perfected visual methods for measuring nuclear emulsions with aid of plates Discovered a new form of fission in 238 uranium, a greatly assimetric fission (1975) With V. Davis & W. Tesh. Gradation development method for nuclear emulsions. Physical Review 91(1):224, 1953 Um viscosímetro de nível constante. Anais Assoc. Quim. Brasil 3(3):179-81, 1944 With W.M. Amorim. Dosagem de monazita pelo contador Geiger-Muller. Anais Assoc. Quim. Brasil 12:35, 1953 (a process for evaluation of monazite in the sand) MEMBERSHIP/OTHERS President, XX General Conference of IAEA, Wien (1976) Councillor, International Center for Theoretical Physics, Trieste Leonardo da Vinci Golden Medal, Italy TRIVIA First in the world to obtaining doctorate in Nuclear Engineering, North Carolina State University, USA (1954) He was advisor of Jerome Isaac Friedman, a future Nobel Prize (1955) He was one Latin American to receive lunar rocks for analysis from Apolo XIV and Apolo XV missions (1971) LINKS The information was obtained from http://biblioteca.cat.cbpf.br/pub/apub/cs/2000/cs00800.pdf (in Portuguese)
Hernán Chaimovich
Hernán Chaimovich Guralnik, Chilean-born Brazilian biochemist (Santiago 07 August 1939 – From Jewish Russian ancestry Authored 136 papers ACHIEVEMENTS First demonstrated that any enzyme behave such a specific manner With A. Traverso-Cori & O. Cori. Kinetic studies and properties of potato apyrase. Arch. Biochem. Biophys. 109(1):173-84, 1965 Developed models for quantitative analysis of micelles and other aggregates on reactions Described one of the first artificial surfactant systems forming vesicles Elaborated conceptual frameworks for the quantitative analysis of reaction rates in aggregated systems advancing the understanding of interfacial effects on chemical and biological reactivity First described vesicle formation using synthetic amphiphiles with negative charge (1984) With R.A. Mortara & F.H. Quina. Formation of closed vesicles from a simple phosphate diester. Biochem Biophysl Res Commun 81(4):1080-1086, 1978 Described methodology for analysis of reaction velocities in complex systems With F.H. Quina. Conceptual framework for ion-exchange im micellar solutions. J. Phys. Chem 83(14);1844-50, 1979 With F.H. Quina, R.M.V. Aleixo, I.M. Cuccovia & D. Zanette. Quantitative analysis of micellar effects on chemical reactivity and equilibria: an evolutionary overview. Solution Behavior of Surfactants 2:949-73, 1982 With A.E. Vercesi & J.M. Cuccovia. A plant uncoupling mitochondrial protein pump. Nature 375: 24-24, 1995. METHODS With E.J. Ribaldo, J.B. S. Bonilha, M.J. Politi, F.H. Quina et al. A rapid quantitative method for determining the homolog composition of quaternary ammonium surfactants. J Colloid Interf Science 97:115-120, 1984. With J.M. Cuccovia, L.S. Romsted & I.N. Silva. A new method for estimating the degree of ionization and counterion selectivity of cetyltrimethilammonium halide micelles: chemical trapping of free counterions by water soluble arene diazonion ion. Langmuir 2628:647-652, 1997. With L. G. K S. Dias & J. P. S. Farah. A simple method for the fast calculation of charge redistribution of solutes in an implicit solvent model. Chemical Physics 282(2):237-243, 2002. HONORS Commandeur dans l’Ordre des Palmes Academiques de France (2010)