Lucien Lison
Lucien Alphonse Joseph Lison, Belgian / Brazilian histochemist (Trazegnies, Hainaut Province 13 March 1907 – 1979) ACHIEVEMENTS With J. Pasteels demonstrated the occurrence of DNA synthesis after mitosis and developed a new histophotometer (1950) Established histochemistry as autonomous discipline distinguishing between simple staining techniques and cytochemical ones (1936) Performed studies on enzymatic histochemistry and described a series of new methods for locating substances in tissue cuts With A.R. Cruz. Constance de la relation de croissance nucleocytoplasmique dans certains neurones pendant le development. C.R. Acad. Sci. 245:1838, 1959 Lison stain Alcian blue 8G with chlorantine fast red 5B. A technique for selective staining of mucopolysaccharides. Stain Technology 29:131-8, 1954 A method for graphical reconstruction Une method nouvelle de reconstruction graphique perspective. Bull. d’ Histol. Appl. 13:357, 1936 With J.F.C. Boodts. A new computerized method for the determination of the thermodynamic dissociation constant from experimental data. Z. Phys. Chemie 1972 Coined the term petrodentine (1941) EPONYMY Lison-Dunn stain for demonstrating hemoglobin peroxidase Steedman-Lison stain Lison method for polysaccharide sulfate compounds (1935) Lison method of zinc-leucos reaction Appel-Lison method Lison technique for glycogen Ehrlich-Lison reaction Lison reaction for acid phosphatase Lison method of metachromatic staining Lison method for ceroid Lison-Dagnelie method Lison-Pinheiro reaction for indol (1960) Lison reagent (for peroxidases)
Lleras Codazzi family
Ricardo Lleras Codazzi, Colombian geologist and mineralogist (Bogotá 20 February 1869 – Girardot, Cundinamarca Department 18 January 1940) Discovered and described viterbite, a mixture of allophane and wavellite Held an invention patent for mining procedures Proposed original concepts and conclusions El puesto del hombre en la naturaleza. Anales Ingen. Bogotá 48(545):200-19, 1940 HONORS Honored in fossil resin named llerasite Laureate, Palmes Academiques de France His brother, Eduardo Lleras Codazzi, chemist and toxicologist (Bogotá 30 January 1885 – Bogotá 28 August 1960) Modified the method for detecting morphine in dead bodies Developed a Soxhlet-like extraction device Invented electric muffle furnaces
Lin-gun Liu
Lin-gun Liu, Taiwanese geoscientist (1942 – Found that silicate perovskite could form from all the major upper-mantle materials such as olivine, pyroxene and garnet Silicate perovskite from phase transformation of pyrope-garnet at high pressure and temperature. Geophys. Res. Lett. 1:277-80, 1974 Saw that silicate perovskite comprises most of the mantle from the transition zone downwards With A.E. Ringwood found that phase C could hold water First synthesized phase D Phase transformations in serpentine at high pressure and temperatures and implications for subducting lithosphere. Phys. Earth Planet. Interiors 42:255-62, 1986 SYNTHESIZED NEW PHASES/MODIFICATIONS New silicate perovskites. Geophys. Res. Lett. 14:1077-82, 1987 A new high pressure phase of Ca2Al2SiO4 and implications for the Earth’s interior. Earth Planet. Sci. Lett. 40:401-6, 1978 A fluorite isotype of SnO and a new modification of TiO: implications for the Earth’s lower mantle. Science 199:422-4, 1978 With W.A. Bassett & J. Sharry. New high pressure modifications of GeO2 and SiO2. J. Geophys. Res. 83:2301-5, 1978 High pressure NaAlSiO. The first silicate calcium ferrite isotope. Geophys. Res. Lett. 4:183-6, 1977 Synthesis of a new high pressure phase of manganese dioxide. Earth Planet. Sci. Lett. 29:104-6, 1976 With A.E. Ringwood. Synthesis of a perovskite-type polymorph of CaSiO3. Earth Planet. Sci. Lett. 28:209-11, 1975 Synthesis of a new high-pressure phase of tin dioxide and some geophysical implications. Phys. Earth Planet. Interiors 9:338-43, 1974 SOME BIBLIOGRAPHY An alternative interpretation of lower mantle materials mineral associations in diamonds (2002) The causes of the major seismic discontinuities in the transition zone of the Earth’s mantle (1995) With H. Kao. A hypothesis for the seismogenesis of double seismic zone (1995) With L. Wu. Bulk modulus and equation of state. Phys. Earth Planet. Interiors 70(1-2):78-84, 1992 Effects of H20 on the phase behaviour (1987) Structural considerations in high-pressure phase transformations of simple crystals. High Temp. High Pressures 13:387-8, 1981 High pressure phase transformations in baddeleyite and zircon. Earth Planet. Sci. Lett. 44:390-6, 1980 The mineralogy of an eclogitic earth mantle. Phys. Earth Planet. Interiors 23:262-7, 1980 On the 650 km seismic continuity. Earth Planet. Sci. Lett. 42:2028, 1979 High pressure Ca2SiO4, the silicate K2NIF – isotype with crystalchemical and geophysical implications. Phys. Chem. Miner. 3(3):291-9, 1978 High pressure phase transformations of albite, jadeite and nepheline. Earth Planet. Sci. Lett. 37:438-44, 1978 The post-spinel phase of forsterite. Nature 262:770-2, 1976 The high pressure phases of MgSiO3. Earth Planet. Sci. Lett. 31:200-8, 1976 Post-oxide phases of olivine and pyroxene and mineralogy of the mantle. Nature 258:510-2, 1976 Post-oxide phases of olivine and pyroxene and mineralogy of the mantle. Nature 258:510-2, 1975 With T. Takahashi & W.A. Bassett. Isothermal compressions of a spinel phase of Co2SiO4 and magnesian ilmenite. J. Geophys. Res. (1974) A dense modification of BaO and its crystal structure. J. appl. Phys. 42:3702-4, 1971 HONORS Lingunite Gillet, Chen, Dubrovinsky & El Goresy 2000 (Mineral)
Li Shi Zhen
Li Shi Zhen, Chinese herbalist and therapist (Qizhou, Qichun County, Hubei Province 03 July 1518 – 1593) Authored Pen Ts’ao Kang Mu (Compedium of Materia Medica) in which described 1892 medicinal products derived from plants, animals and minerals. This book was translated to many languages such as Japanese, Russian, German, French and English HONORS Lishizhenia Lau, Ren, Wai et al. 2006 (Marine Bacteria)
Lemos Torres family
Alvaro de Lemos Torres, Brazilian physician (Rio de Janeiro 15 April 1884 – São Paulo 18 January 1942) Described Lemos Torres sign Sobre um novo signal de derrame pleural. O Hospital 36(4):597-603, 1929 Created Lemos Torres technique or extended hand technique for palpation of liver His son, Ulysses Lemos Torres, surgeon (Avaré, São Paulo State 20 October 1911 – São Paulo 02 April 1982) Developed a method for spleen palpation Um método de palpação do baço. O Hospital 24(1), 1943 Um novo sinal de ascite; técnica de percussão palpatória para pesquisa de líquido na cavidade abdominal. O Hospital 72(5):1335-46, 1967 Lemos Torres-Degni technique for treatment of portal hypertension With M. Degni. Rational basis of a new technique for the treatment of portal hypertension. Bull. Soc. Internat. Chir. 22:3, 1963. With M. Degni. Bases de uma nova técnica de desconexão azigos-porta radical para tratamento da hipertensão portal (operação de Lemos Torres-Degni). Rev. Bras. Cardiovasc. 3(2):103-8, 1967 Bases fisiopatológicas de uma nova orientação cirúrgica para o tratamento da síndrome de hipertensão portal. Rev. Bras. Cardiovasc. 3(2):101-2, 1967 Métodos cirúrgicos no tratamento da síndrome de hipertensão portal apreciados por um clínico: reformulação de conceitos e propositura de uma nova orientação cirúrgica. Arqu. Med. Hosp. Fac. Ciencias Med. Santa Casa S. Paulo 9:23-43, 1963 Síndrome de hipertensão portal. Nova conceituação e orientação terapêutica. Ars Curan 1(1):41-5, 1968 Técnica e tática no tratamento da esquistossomose mansonica. O Hospital 57(4):649-57, 1960
Legrand family
Enrique Legrand Carriguisi, Uruguayan poet, astronomer and mathematician (Montevideo 12 August 1861 – Montevideo 23 October 1936) Authored 22 works and scientific publications Calculated the orbit of Viscara comet (1901) Invented a system of repeating prisms applied to sextants Prismes réiterateurs appliqués au sextant (1898) Developed a graphical method for predicting Sun occultations and eclipses Método grafico para la predicción de ocultaciones y eclipses de Sol (1906) OTHER CONTRIBUTIONS Loi du rayonemment thermique solaire. Bol. Colegio Pio (1897) Sommations par une formule d’Euler (1911) Sobre Wallis y sus metodos de interpolación y dos formulas para el calculo logarítmico a 4 decimas de las funciones eulerianas (1919) Determinación exacta de la latitud y del tiempo en el sextante (1927) His son, Carlos Maria Diego Enrique Legrand Lasserre, botanist (Montevideo 01 November 1901 – Montevideo 06 December 1982) Gained international recognition on Portulaca genus and Myrtaceae family Described 1 genus, 3 subgenera, 19 sections, 27 subsections, 6 series, 169 species, 2 subspecies, 80 varieties, 10 forms and 11 combinations HONORS Legrandia Kausel 1944 (Myrtaceae) LINKS http://www.mec.gub.uy/munhina/pdf/PE40.pdf (bibliography and taxa)