Aristides Azevedo Pacheco Leão
Aristides Azevedo Pacheco Leão, Brazilian neurophysiologist (Rio de Janeiro 03 August 1914 – Rio de Janeiro 14 December 1993) Discovered the cortical spreading depression known as Leão waves or phenomenon Spreading depression of activity in the cerebral cortex. J. Neurophysiol. 7:359-90, 1944 First to relate spreading cortical depression and the aura of migraine With R.S. Morison. Propagation of spreading cortical depression. J. Neurophysiol. 8:33-45, 1945 SOME BIBLIOGRAPHY With P.A. Maranhão Filho. A note on the action of glutamine on cortical spreading depression. Cephalalgia 11:201-4, 1991 With E. Oswaldo Cruz, R.F. Bernardes & C.E. Rocha Miranda. The brain of the opossum (Didelphis marsupialis): a cytoarchitectonic atlas in stereotaxic coordinates (1968) With H. Martins Ferreira. Nota acerca da depressão alastrante no cerebelo, tubérculo quadrigêmino e bulbo olfativo. An. Acad. Bras. Ciencias (1961) Composição iônica extracelular e depressão alastrante. An. Acad. Bras. Ciencias 33:38-9, 1961 With H. Martins Ferreira. Nota acerca da depressão alastrante no bulbo olfativo. An. Acad. Bras. Cien. Circulação na pia mater e depressão alastrante da atividade do córtex cerebral. Anais Acad. Bras Ciencias 26, 1954 With H. Martins Ferreira. Alterações da impedância elétrica no decurso da depressão alastrante da atividade do córtex cerebral. Anais Acad. Bras Ciencias 25(3):259-66, 1953 The slow voltage variation of cortical spreading depression of activity. Electroencephalogr. Clin. Neurophysiol. 3:315-21, 1951 Further observations on the spreading depression of activity in the cerebral cortex. J. Neurophysiol. 10:409-14, 1947 Pial circulation and spreading depression of activity in the cerebral cortex. J. Neurophysiol. 7:391-6, 1944 His uncle, Antonio Pacheco Leão, Brazilian physician and botanist (Rio de Janeiro 11 April 1872 – Rio de Janeiro 21 June 1931) SOME BIBLIOGRAPHY Correlação hepato-renal em pathologia (1897) Biografia de Martius (1919) Enumeração das plantas amazônicas cultivadas no Jardim Botânico e introduzidas, pelo chefe da seção Adolpho Ducke HONORS Leocereus Britton & Rose 1920 (Cactaceae)
Antonio de Leon y Gama
Antonio de Leon y Gama, Mexican scientist (Ciudad de Mexico 1735 – Ciudad de Mexico 12 September 1802) ACHIEVEMENTS Published works dealing with experimental physics, medicine, mathematics and archaeology Determined latitude and longitude of Mexico Observed poles height in Ciudad de Mexico and computed accurately Solar Eclipse of 1771, being highly praised by French astronomer Joseph J. L. de Lalande Performed astronomical calculations about a comet (1778) that earned him recognition in Europe Explained Aztec calendar (1790)
Antonio Correia de Lacerda
Antonio Correia de Lacerda, Portuguese / Brazilian physician and naturalist (Vila da Ponte, Montalegre Subdistrict, Portugal 1777 – São Luiz 21 July 1852) Developed a process for peeling of cinnamon and bark’s expurgation Collected, classified and described plant species in Flora Paraensis (1821-52) and Nova Genera Plantarum (1820s) that didn’t use the binomial nomenclature Described more than 400 plant species with its medicinal effects and posology in Botanica Medica (1830s) Authored Chemiologia Vegetal (1845-9) recording the effects of plant chemicals on chemical reagents, isolating active principles and describing the chemical composition of each solution Authored Zoologia paraense (1820-35) too MEMBERSHIP Member, Societé de Medicine de Marseille (1831) Member, Munich Academy of Sciences (nominee by famous botanist Karl Friedrich Philipp Von Martius) OFFICES President of Government Junta that ruled Pará Province (12 March 1822 – 01 March 1823; 30 April 1824 – 02 May 1824) LINKS http://www.scielo.br/scielo.php?pid=S0104-59702004000300004&script=sci_arttext (Portuguese)
Alfredo Lanari Gil
Alfredo Lanari Gil, Argentine clinician (Mar del Plata 09 February 1910 – Buenos Aires 23 March 1985) Authored over 150 works Authored an influent chapter on pathological physiology of myasthenia gravis With A.R. Goñi. Fisiopatologia de la myasthenia gravis. Medicina (Bs. Aires) 3:476, 1943 Obtained experimentally bronchiectasis by bronchial obstruction With O. C. Croxatto. Pathogenesis of bronchiectasis: experimental study and anatomic findings. J. Thorac. Surg. 27(5):514-28, 1954 Lanari method for diagnosis of peripheral vascular affections employing acetylcholine intra-arterial injection
Alberto Ribeiro Lamego
Alberto Ribeiro Lamego, Brazilian geologist and geographer (Campos dos Goytacazes, Rio de Janeiro State 09 April 1896 – Rio de Janeiro 16 October 1985) Introduced the concept of Brazilic diastrophism, a pre-laurentian diastrophism with intrusions of microcline-biotite-granitite Proposed the term proto-gneiss for semi-phacoidal plagioclase-gneiss of Engenho Novo type Proposed that the main types of gneisses came from a primitive rock that named protogneis A Theoria do Protogneis. Uma interpretação petrogenética do Arqueano. Bol. Serv. Geol. Miner. 86, 1937 SOME BIBLIOGRAPHY Contribuição a Geologia do Valle do Rio Grande, Minas Geraes. Bol. Serv. Min. Brazil 70, 1933 O massiço do Itatiaya e regiões circundantes (1936) Escarpas do Rio de Janeiro. Bol. Serv. Geol. Miner. 93, 1938 Marmores do Muriaé, Rio de Janeiro. Bol. Serv. Geol. Miner. 97, 1940 A Bacia de Campos na Geologia Litorânea do Petróleo (1944) A Geologia de Niterói na tectônica da Guanabara (1945) Ciclo evolutivo das lagunas fluminenses. Bol. Div. Geol. Miner. Dept. Nac. Prod. Min. 118:1-48, 1945 Analise tectônica e morfológica do sistema da Mantiqueira (1946) Geologia das folhas de Campos, São Tomé, Lagoa Feia e Xexé (1955) HONORS Vice-president, Commission of International Geological Chart Vice-president, International Union of Geological Sciences Genus Lamegoia Paula Couto 1952 (Fossil Mammalia)
Alberto Loefgren
Johan Albert Constantin Loefgren, Swedish-born Brazilian naturalist (Stockholm 11 September 1854 – Rio de Janeiro 30 August 1918) DESCRIBED VALID SPECIES Plantae Acianthera cryptophoranthoides 1918 Anathallis adenochila 1918 Anathallis simpliciglossa 1918 Anathallis tigridens 1918 Begonia juliana Brasiliorchis barbosae 1918 Pleurothallis atroglossa 1918 Pleurothallis glandulifera 1915 Pleurothallis leucosepala 1918 Pleurothallis magnicalcarata 1918 Rhipsalis campos-portoana 1918 Rhipsalis chrysantha 1915 Rhipsalis chrysocarpa 1915 Rhipsalis crispimarginata 1918 Rhipsalis densiareolata 1918 Rhipsalis oblonga 1918 Rhipsalis pacheco-leonis 1918 Rhipsalis pilocarpa 1903 Rhipsalis pulchra 1915 Rhipsalis rigida 1915 Schlumbergera candida 1918 Schlumbergera opuntioides 1903 with Dusén Zygocactus obtusangulus 1918 Algae Staurastrum psilosporum 1883 with Nordstedt (Charophyta) HONORS Loefgrenia Gomont 1896 (Cyanophyceae) Loefgrenianthus Hoehne 1927 (Orchidaceae) Loefgrenia Travassos 1920 (Nematoda)