Luis Sanchez Varona
Luis Sanchez Varona y Calvo, Cuban vertebrate zoologist and paleontologist (La Habana 03 September 1923 – La Habana 15 July 1989) DESCRIBED VERTEBRATE TAXA Mammalia Living (Valid) Genus Mesocapromys 1970 Species Capromys gundlachianus 1983 Mesocapromys angelcabrerai 1979 Mesocapromys auritus 1970 Mesocapromys sanfelipensis 1970 with Garrido Mysateles garridoi 1970 Mysateles meridionalis 1986 Subspecies Capromys pilorides doceleguas 1980 Fossil Genus Cubanocyon 1974 with Arredondo Species Capromys antiquus 1979 with Arredondo Capromys arredondoi 1984 Capromys barbouri 1979 with Arredondo Capromys beatrizae 1979 with Arredondo Capromys delicatus 1979 with Arredondo Capromys gracilis 1979 with Arredondo Capromys jaumei 1979 with Arredondo Capromys kraglievichi 1979 with Arredondo Capromys latus 1979 with Arredondo Capromys minimus 1979 with Arredondo Capromys pappus 1984 Capromys robustus 1979 with Arredondo Capromys silvai 1979 with Arredondo Cubanocyon transversidens 1974 with Arredondo Geocapromys megas 1979 with Arredondo Metaxytherium riveroi 1972 Reptilia Species Crocodylus antillensis 1966
Leonila Vazquez Garcia
Leonila Vazquez García, Mexican entomologist (Jimenez, Chihuahua State 17 January 1911 – Ciudad de Mexico 30 January 1995) Authored 52 papers DESCRIBED VALID LEPIDOPTERA TAXA Species Anteos atromarginatus 1952 Astala hoffmanni 1941 Oiketicus zihuatanejensis 1951 Rhescynthis septentrionalis 1965 Synopsia eximia 1939 with Hoffmann Subspecies Antheraea polyphemus tuxtlasensis 1994 with Balcazar Aphrissa statira candens 1949 Aphrissa statira concolor 1949 Aphrissa statira impunctata 1949 Aphrissa statira subtermaculata 1949 Battus philenor insularis 1957 Citheronia splendes queretana 1944 Heraclides erostratus erostratinus 1947 Mimoides ilus occiduus 1957 Papilio pharnaces dissimilis 1957 Papilio pharnaces paucimaculata 1947 Phoebis intermedia subfasciata 1949 Phoebis neocypris rubrofasciata 1952 Pieriballia viardi intermedia 1954 Strymon istapa clarionica 1958 Thecla collumela socorroica 1958 Zerene caesonia albida 1949 HONOURS Genus Vazquezitocoris Brailovsky 1990 (Hemiptera) Honorary Member, International Union for Conservation of Nature and Natural Resources, Cambridge, England (1977) Biographical data in The Lepidopterist’s Society Commemorative Volume (1977)
Krishnaswami Venkataraman
Krishnaswami Venkataraman, Indian organic chemist (Chennai 07 June 1901 – New Delhi 12 May 1981) Authored 271 papers Authored a classical treatise on chemistry of dyes and dye intermediates named The Chemistry of Synthetic Dyes in five volumes (1-2 in 1952 and 3-5 in 1971-8) translated into 14 foreign languages Discovered Baker-Venkataraman transformation or rearrangement A synthesis of flavones at room temperature. Curr. Sci. (1933) Isolated flavonoids from plant sources and elucidated their structures Demonstrated the presence of nitrogen in some lac pigments Isolated and characterized a number of natural pigments belonging to anthraquinonoid group (e.g. laccaic acids A and B) Isolated artocarpanone from Artocarpus heterophyllus Developed methods for selective demethylation of methoxy flavonoids under mild Lewis acid conditions, for introduction of hydroxyl groups in oxygen heterocycles involving nitration or azocoupling, replacement of nuclear OH by through tosylation followed by Raney nickel hydrogenolysis and many more such procedures Developed several new synthetic procedures, chromatographic separation techniques and simple and practical methods for the characterization and estimation of dyes Developed a method for the facile hydrolysis of the anilides of o-hydroxy carboxylic acids Demonstrated the deshielding effect of azogroup of azodyes in their nuclear magnetic resonance spectra Developed new textile auxiliary agents for industrial use Developed column chromatographic technique under hot conditions (100-150° C) for study of dyes Developed some simple methods for the analysis and estimation of dyes and related compounds (e.g. introduced Congo Rubine Number to determine the protective colloidal action of surface active compounds and discovered that naphthols could be estimated by precipitating them by acidifying their alkaline solution in water or aqueous alcohol and weighing their precipitate) LINKS http://www.ncl-india.org/aboutncl/Dec2004p45-51.pdf
Karl Ludwig Von Bezing
Karl Ludwig Von Bezing, Austrian-born South African amateur mineralogist (Klagenfurt 1945 – Discovered the mineral species such as poldervaartite, guidottiite and nchwaningite described by other researchers With Giester, Lengauer, Pristacz, Rieck & Topa codescribed the mineral cairncrossite (2016) SOME BIBLIOGRAPHY With D.A. Banks, J. Gutzmer, V. Luders & N.J. Beukes. The composition of seawater in the Paleoproterozoic. Trans. Inst. Min. Metall. 112:153-4, 2003 With J. Gutzmer, D.A. Banks, V. Luders, J. Hoefs & N.J. Beukes. Ancient sub-seafloor alteration of basaltic andesites of the Ongeluk Formation, South Africa: implications for the chemistry of Paleoproterozoic seawater. Chem. Geol. 201:37-53, 2003 With J. Gutzmer. Amethyst/Eisenkiesel-Quarze vom Orange Fluss in Namibia. Lapis 25:39-41, 2000 The Angelierspan pegmatites. S. Afr. Lapid. Mag. 28:11-3, 1996 Phosphate minerals of the Straussheim nº1 pegmatite. Micro News & Views 21(4), 1995 Jacobsite from the Kalahari manganese field. Micro News & Views 20(1):4, 1994 With J. Gutzmer. Das Kalahari manganerzfeld und seine mineralien. II. Mineralienwelt 5:41-59, 1994 With J. Gutzmer. Das Kalahari manganerzfeld und seine mineralien. I. Mineralienwelt 4:24-43, 1994 The new minerals of the Kalahari manganese field. S. Afr. Lapid. Mag. 26:5-6, 1994 With J. Kotze. The Jan Coetzee copper mine, Namaqualand, South Africa. Min. Rec. 24:39-40, 1993 Bertrandite and phenakite from two localities. Micro News and Views 19(4):5-6, 1991 With R.D. Dixon, D. Pohl & G. Cavallo. The Kalahari manganese field: an update. Min. Rec. 22:279-97, 1991 With R.R. Inskeep. Modelled terra-cotta heads from Lydenburg, South Africa. Man 1(1):102-4, 1966 HONORS Vonbezingite Dai & Harlow 1992 (Mineral)
Juan Vucetich
Juan Vucetich, Croatian-born Argentine criminologist (Hvar, Croatia 20 July 1858 – Dolores, Buenos Aires 25 January 1925) His original name was Ivan Vucetic Developed Galtonian method or icnofalangometria, today known as dactiloscopy (1891) Invented dactilonome (1899) and other elements to obtaining fingerprints Performed the first criminal fingerprint identification (1892) His nephew, Danilo Carlos Vucetich, chemist and pharmacist (1860 – 1966) Sobre un metodo de investigación de alcohol en quimica legal. Rev. Fac. Cien. Quim La Plata 10:37, 1935 8-hydroxyquinoline for the determination of magnesium. Rev. Fac. Cien. Quim La Plata 9:81-91, 1934 HONORS Vucetichia Borrello 1966 (Ichnofossil)
Juan Carlos Vignaux
Juan Carlos Vignaux, Argentine mathematician (Santiago del Estero 1893 – Buenos Aires 26 June 1984) Vignaux’s theorem Sur le produit de series sommable par la methode de Borel. Bull. Sci. Math. (2) 57:211-9, 1933 Vignaux’s method of asymptotic Laplace transforms Sugli integrali di Laplace asintotici. Atti Accad. Naz. Lincei, Rend. Cl. Sci. Fis. Mat. 29:396-402, 1939 Extensión del metodo de sumación de M. Borel a las series de funcciones de variable compleja dual e hiperbolica (1936) Nuevo metodo de sumación de integrales y su aplicación a la integral de Laplace (1933) Sobre la generalización del metodo de Le Roy (1933) Sobre una generalización del metodo de sumación de Abel (1933) Sobre un teorema de las integrales dobles convergentes (1933) Un teorema sulle integrali dopi di Abel-Laplace. Rendiconti R. Accad. Lincei 6:17, 1933 Un teorema sobre producto de series sumable con el metodo de Riesz (1932)