Leborgne Family
Raul Alfredo Leborgne Fossemale, Uruguayan radiologist (Montevideo 19 April 1907 – 1986) Developed the first method of radiologically guided mammary biopsy (1946) With brother Felix Leborgne created the mammography and the mammograph (1948-9) Discovered radiological signs of mammography Demonstrated that the diagnostic importance of the fine microcalcifications that may be detected radiographically in a high proportion of breast cancers (1951) Described the radiographic differences between benign and malignant calcifications (1935) First to report the significant association of microcalcifications with subclinical carcinoma Described a way to collect the fluid of a breast duct or ductal rinse (1946) First mentioned the idea of studying the breast ducts and their fluid Introduced craniocaudal incidence to the mammography Used the collimating cone to compress the breast Developed new techniques in radiology such as techniques for contrast studies in salivary glands (1947) Proposed the use of the low voltages in radiographies (1949) Introduced low radiation radiology (1953) Anticipated screening Authored The Breast in Roentgen Diagnosis, the first treatise of mammary radiology (1953) Enunciated Leborgne Law “the palpable tumor is bulkier that it seen in the radiography” (1951) EPONYMY Leborgne mammographies Leborgne-Gross method of breast radiography His brother, Felix Enrique Leborgne Fossemale, radiologist (Montevideo 24 January 1904 – 1970) Authored the first work on sentinel ganglion (1954) Nueva tecnica radiologica per cortes o secciones. Anales Ateneo Clin. Quir. (1936) Proposed standardization of radioactive measures in roentgentherapy Reported the first tomographic study in patients with cancer of the larynx and performed the first frontal laringeal tomography (1936) Developed a method for transluminal intubation of esophagus tumor World pioneer in treating laryngeal and uterine cervical cancer creating a radio therapeutic device for treatment of them Developed the first radium isotopic scanner or gamma topograph Constructed a radium “gun” for telecurietherapy (1930) Devised a manual mechanical contraption which permitted making of tomograms with conventional radiodiagnostic equipment (1936) Built dosimetric apparatuses such as the first x-rays pump for external irradiation Designed intrauterine radium applicators An intrauterine “radium holder” tube with drainage fillets An innovative radium kymograph A radium scalpel (the first electric scalpel) A kind of vaginal “radium holder” fórceps The first dosimeter for calibration of nuclear energy sources with therapeutic uses Son of Felix, Felix Leborgne Pueyrredón, radiologist (1935 – Montevideo 01 May 2009) Authored over 150 works Pioneer in the standard use of ultrasonography in mammary diagnosis Developed the first simulator for brachytherapy and 3D conformal radiotherapy WITH HIS BROTHER JOSÉ H. LEBORGNE Introduced the concept of biological effective dose in personal treatment of head and uterine cervix cancer Perfected mammography beyond clinical use of ultrasonography His Montevideo trial about management of non-palpable changes of breast earned international repercussion (1990) independently of Edward Sickles Introduced cytological diagnosis under ecographic control in non-palpable lesions Introduced the pre-surgical hookwiring and the ambulatorial stereotaxic percutaneous biopsies Determinated optimal dosis for radio therapeutic treatment of uterine cervix cancer Brother of Felix, José Honorio Leborgne Pueyrredón, radiologist (March 1938 – See above
Larry Leach
Leslie (Larry) Charles Leach, English-born South African (Southend on Sea, Essex 18 November 1909 – Pietersburg, today Polokwane, Limpopo Province 18 July 1996) Worked in Rhodesia (1938-81) & South Africa (1981-96) DESCRIBED NEW PLANTAE TAXA Asclepiadaceae Orbeanthus 1978 Orbeopsis 1978 Pachycymbium 1978 Euphorbiaceae Endadenium 1973 Species 114 in Aloaceae, Asclepiadaceae and Euphorbiaceae HONORS Larryleachia Plowes 1996 (Asclepiadaceae)
Lane Brothers
John Lane, Brazilian medical entomologist (São Paulo 12 March 1905 – São Paulo 04 January 1963) Son of United States immigrants Authored 152 papers DESCRIBED NEW TAXA Genera ans Subgenera (Diptera) Abmyceta 1955 Antunesmyia 1942 with Cerqueira Aphrastomyia 1949 with Coher Boscmyia 1954 Calliceratomyia 1946 Callicypta 1954 Cruzmyia 1942 with Cerqueira Davismyia 1942 with Cerqueira Edwardsops 1942 Eurypterosyrphus 1947 with Barretto Limamyia 1942 with Cerqueira Lutzomiops 1942 Macfiehelea 1946 Neoditomyia 1958 with Sturm Oromyceta 1955 Schizoceratomyia 1947 with Carrera & Souza Lopes Shannoniana 1942 with Cerqueira Vonplessenia 1942 with Cerqueira Species and subspecies (mainly Diptera) 638 species and 2 subspecies HONORS Johnlaneia Orfila & Schajovsky 1964 (Lepidoptera) Laneella Pinto de Melo 1967 (Diptera) Lanehelea Wirth & Blanton 1972 (Diptera) Lanemyia Barretto 1949 (Diptera) His brother, Frederico Lane, entomologist, ethnographer and folklorist (São Paulo 17 September 1901 – São Paulo 22 September 1979) Authored 101 works Described 91 genera ans subgenera in Coleoptera HONORS Laneius Soares 1942 (Arachnida) Lanesoares Roewer 1949 (Arachnida) Antodilanea Gilmour 1962 (Coleoptera) Fredlanea & Fredlanella Martins & Galileo 1996 (Coleoptera)
Lagos Garcia brothers
Juan Carlos Lagos García Elliot, Argentine physician (Buenos Aires 29 December 1880 – Buenos Aires 17 June 1928) Authored Las deformidades de la sexualidad humana (1925), the first modern medical book dedicated to genital abnormalities and their surgical cure Described Lagos García-Segers-Ivanissevich’s water-hyacinth sign for diagnosis of lung hydatidosis With A. Segers. Consideraciones sobre un caso de quiste hidatico pulmonar aberto em brônquios. Sem. Med. 31:271, 1924 SOME BIBLIOGRAPHY Equinococosis experimental. Sem. Med. 741, 1922 Hepatoma en un niño de cinco meses. Operación. Curación (1920) Quistes hidaticos en niños (1908) Rachitis untere extremitaten. Sem. Med. 30(17):789-804, With A.L. Masucci. Die eitrige Entzundung des Huftgelenkes in der Ersten Kindheit. Sem. Med. Equinococosis pulmonar en la infancia With J. G. Fernandez. Consideraciones a proposito de un caso de oclusión intestinal Derrame pleural com colesterina His brother, Alberto Lagos García Elliot, pediatric surgeon (1903 – 1950) Described epitrochlea fracture with fragmente in articulation and palsy of cubital nerve Fractura de la epitróclea com interposición intra-articular del fragmento. Parálisis del nervo cubital SOME BIBLIOGRAPHY Invaginación intestinal em el niño (1947) Labio leporino mediano y nariz bífida. Sem. Med. 2:237-41, 1944 With C.J. García Díaz. Primary ileitis in children. Arch. Argent. Pediat. 14:281, 1943 With R.F. Geser. La apofisis de la patella partida. Sem. Med. p.886-91, 1938 Las fracturas del cóndilo externo del húmero en los niños (1937) With M. J. Fitte. Las luxaciones simples patológicas de la cadera (1932) Traumatische lasionen des Atlas und Epstiropheus. Prensa Med. Arg. 16:1317-33, 1930 Hydatid cyst of the convex surface of the liver in children (1928) With M.J. Fitte. Lesiones traumaticas del atlas y axis
Krishan Lal
Krishan Lal, Indian physical crystallographer (Chiniot, today Pakistan 15 March 1941 – Authored over 122 research papers, 9 books and 7 patents Directly observed and characterized effect of external electric fields on real structure of semiconductors and insulators Characterized the effect of processing steps for solid states devices fabrication on substrate materials Enabled growth of single crystals of unprecedented perfection level First to observe directly and characterize very low angle boundaries with tilt angles Developed accurate techniques for measurement of dielectric constants and dielectric loss of single crystals Developed a new high-resolution technique and a three-crystal x-ray diffractometer to investigate diffuse x-ray scattering from nearly perfect single crystal Developed high quality multi-crystal x-ray diffractometers
Keshav Mukund Lele
Keshav Mukund Lele, Indian paleobotanist (Varanasi 26 March 1931 – 09 January 1981) DESCRIBED FOSSIL GENERA Sporae Barakarella 1983 with Srivastava Biornatispora 1969 with Streel Circumstriatites 1972 with Makada Crucisaccites 1964 with Maithy Gondwanopollis 1969 with Maithy Jayantisporites 1972 with Makada Pachysaccus 1969 with Maithy Plicatipollenites 1963 with Maithy Plicatisporites 1972 with Makada Rimospora 1969 with Maithy Rugasaccites 1969 with Maithy Stellapollenites 1965 with Maithy Striatoparvisaccites 1975 Trilaevipellites 1974 with Chandra Tuberisaccites 1972 with Makada Virkkipolllenites 1964 with Makada Others Alatocarpus 1969 (Plantae) Foveofusa 1972 with Chandra (Acritarcha) Parsorophyllum 1969 (Plantae) Scutellocladus 1962 with Walton (Plantae) HONORS (Fossil Plantae) Lelestrobus S.C. Srivastava 1984 Leleopteris Srivastava & Chandra 1982