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)
João Paulo Botelho Vieira
João Paulo Botelho Vieira, Brazilian physician (São Carlos, São Paulo State 23 July 1896 – São Paulo 22 June 1962) Performed important studies on pemphigus foliaceus Described evolutive phases of fogo selvagem (wild fire), a variety of endemic pemphigus foliaceus First to report elephantiasis of the ears due to lymphangitis Demonstrated the frequence of papillomatosis in pemphigus or wild fire Eponym of Vieira sign a yellowish and canalization of the nail seen in fogo selvagem SOME BIBLIOGRAPHY Considerações sobre o pênfigo foliáceo no Brasil (1948) Patologia das impressões digitais (1942) Novas contribuições ao estudo do penfigo foliáceo (fogo selvagem) no Estado de São Paulo (1940) Quatro anos de fisioterapia aplicada à dermatologia (radioterapia subpenetrante). Rev. Assoc. Paul. Med. 7(5):245-56, 1935 Aplicação do radium nas dermatoses (1919)
João Manuel Varela
João Manuel Varela, Cape Verdean scientist and poet (Mindelo, São Vicente Island 07 June 1937 – Mindelo, São Vicente Island 07 August 2007) Described Varela syndrome Atrophie systématisée de la formation réticulaire. Syndrome de dyshoméostasie du névraxe. Revue Neurologique (Paris), 16:437-440, 1967 Described seaweed Chondriella isecmarius SOME BIBLIOGRAPHY A telencefalização e a morfologia do sistema talâmico de projecção difusa. Thesis, Lisboa, 1964, Atrophies de la formation réticulaire du névraxe. Psychiatria Clinica 2:41-61 & 109-123, 1969. (Abridged versin in English: Psychiatric Digest, Illinois, 31:53, 1970) With DeWulf et al. Études cytométriques du thalamus humain normal. Giornal di Psichiatria e di Neuropatologia, Ferrara, 97:361-373, 1969 With DeWulf et al. Acetylcholinesterase isoenzimes and nerve transmission. Abstracts FEBS Meeting, Madrid, 412, 1969. With A. de Wulf et al. Acetylcholinesterase of muscle and brain of rat. Some kinetic differences. Abstracts IVth Intern. Congr. Neurochemistry, Tokyo, 412, 1973 With A. de Wulf et al. Properties and physiological significance of acetylcholinesterase isoenzymes of mammalian muscle. VIIth Sympos. Physio-Morphology of the Neuromuscular Junction. Polish Academy of Sciences, Krakow, 27-8, 1973 With A. de Wulf et al. Kinetic characterization of acetylcholinesterase of muscle and rat brain. Experientia, 29: 1347-1349, 1973 The reticular formation and the neuropathology of the autonomic disorders. Proceedings VIIth Inter. Congr. Neuropathology, ed. by St. Korney, St.Tariska and G.Gosztony. Akademiai Kiado, Budapest, pp. 753-756, 1975 With P. Mandel. The relative distribution of soluble and insoluble cholinesterase in rat excitable tissues. Experientia 32:976-977, 1976 Cryptococcose expérimentale chez la souris: neurotropisme de souches de Cryptococcus neoformans d’origine africaine et européenne. Monography, Institut de Médecine Tropicale, Anvers, 1981 Lesions and their mechanisms in cerebral cryptococcosis. Abstracts IIth Intern. Conf. Infect. Dis., Cairo, 410, 1985. Cryptococcus neoformans: cell variability and pathogenic competence. Abstracts IVth Intern. Conf. Infect. Dis., Montreal, 1996, 1990, Diphenol oxidase isoenzymes in the rabbit choroid and retina/retinal pigment epithelium. Abstracts of the 34th Annual Meeting AER, Granada, 93, 1993. Isoenzymic patterns of tyrosinase in the rabbit choroid and retina/retinal pigment epithelium. Experimental Eye Research 60:621-629, 1995 Tetrapexity: a theory of pattern formation – Taking a special look at the brain, multicellularity, DNA and a few other biological macromolecules, ANERP, 1997. LINKS http://triplov.com/poesia/joao_vario/curriculo.htm