Leonardo Zeevaert Wiechers
Leonardo Enrique Zeevaert Wiechers, Mexican structural engineer (Veracruz 27 November 1914 – Ciudad de Mexico 16 February 2010) From German descent Recognized as a world leader of geotechnical engineering Authored 159 papers Developed the concept of intergranular viscosity First to apply the concept of controlled flexibility in the design of structures Introduced the concept of elastic stability in design of high-rise steel Improved the concept of compensated foundation and developed the concept of compensated friction pile foundations Discovered the phenomenon of negative friction in piles Developed and named Seismo-Geodynamic Theory Ecuación completa de consolidación para depositos de arcilla que exhiben fuerte compresión secundaria (A complete equation of foundation for clay depots presenting Strong secondary compression). Rev. Ingenieria UNAM (6-8):57-72, 1951 DEVELOPED METHODS Special procedures for deep excavations to be used in conjunction with floating foundations A method to find out the resonance periods of the subsoil (1950s) A procedure for the construction of hanging buildings that gives more architectural flexibility in the ground floor A procedure for determining the hydrodynamic horizontal flow in stratified soils A procedure to assess negative friction in piles Innovative design methods for compensated foundation, piled raft foundations and compensated-friction pile foundations Lez foundation Um método sencillo para el cálculo de las estructuras indeterminadas (A simple method for calculation of indeterminated structures) . Rev. Ingenieria Esc. Nac. Ingenieros p.257-61, 1939 DEVELOPED APPARATUSES Designed free-vibrating torsion pendulum for determining the dynamical properties of the soil (1965) A Hollandish modified chamber Lez pile head Authored Foundation Engineering for Difficult Subsoil Conditions (1972) translated into Chinese and Polish languages HONORS Special Prize, American Institute for Steel Construction (the first one awarded outside United States) Gold medal, American Institute of Architects (1965) Honorary Member, Belgian Royal Academy of Arts & Sciences & National Academy of Engineering, United States 23rd Terzaghi Lecture, American Society of Civil Engineers (1987) LINKS http://www.ejge.com/People/Zeevaert/Zeevaert.htm http://www.100.unam.mx/images/stories/universitarios/dhc/PDF/zeevaert-wiechers-leonardo.pdf
Lelio Zeno
Lelio Olchese Zeno, Argentine plastic surgeon and traumatologist (Torino 16 March 1890 – Rosario 21 October 1968) Son of Piamontese immigrants Worked in the USSR in the first half of 1930s being recognized as father of traumatology in Russia With Emilio Pizarro Crespo wrote Medicina Psicosomatica (1945), in which enunciated the concept of eubiatry or integral medicine Enunciated the idea of fracture callus as a cicatricial disease and the concept of “autogenous welding” First to use skin-free graft of the pinna for nasal correction Injerto libre de piel acolchada em las pequenãs rinoplastias. Anales de Cirurgia 7:295-9, 1941 DEVELOPED TECHNIQUES Mayo-Zeno technique of umbilical herniorrhaphy (1916) Bowman-Zeno technique (a technique for treating supracondylar fractures of child elbow using zenith traction) Zeno method for treatment of burnings employing plaster dressings in Tratamiento de las quemaduras mediante vendaje de yeso. Med. Ibera 30(1):284, 1986 Treatment of vertebral bodies fractures by hyper-extension method New technique in the treatment of fractures of the forearm. J. Bone & Joint Surg. (1938) LINKS htttps://www.semiologiaclinica.com/index.php/biblioteca-virtual/medicos-en-la-historia/35-zeno-lelio https://bvs.smu.org.uy/servicios/ToC/hector%20ardao%20VERSION%208%20baja.pdf His brother Artemio Zeno, surgeon (Buenos Aires 1884 – Rosario 15 November 1935) was member of Royal Academy of Sciences of London and Correspondent Member of Société de Chirurgie de Paris
Juan Jose Zunino
Juan José Zunino, Argentine geologist and engineer (died Buenos Aires 07 February 1991) SOME BIBLIOGRAPHY La astenosfera o zona de baja velocidad sismica en el manto superior y sus posibles implicâncias en geotectônica. An. Acad. Cien. Ex. Fis. Nat. 26:149-71, 1974 Evaluation of oil exploration methods. World Oil (Oil Weekly) 126(6):13-20,1947 Tectónica de estructuras fuertemente comprimidas. Bol. Inf. Petrol. Bs. Aires 22(245):17-35, 1945 El plano por medio de la fotografia utilizando el estereocomparador. Bol. Inf. Petrol. Bs Aires 12(127):41-54, 1935 HONORS Zuninaspis Harrington & Leanza 1957 (Trilobita)
Juan Carlos Zanotti Cavazzoni
Juan Carlos Zanotti Cavazzoni, Paraguayan industrial chemist (died 18 August 2013) From Italian ancestry Authored more than 100 scientific works Developed a new technique for detection of cancer using ultraviolet light With V.E. Zanotti Cavazzoni, A. Miquel & J. Malvetti. Nueva tecnica de detección del câncer en orina observada con luz ultravioleta. Rev. Soc. Med. Mil. Bogotá (1979) Held over 16 patents on biostimulators SOME BIBLIOGRAPHY With V. Cabrera, A. Miquel & J. Malvetti. Enteropatias a colepatogenos tratadas con autovacunas (1998) Cultivo de leguminosas en distintos tipos de suelos con tierras raras y/o ascorbato de titânio. Rev. DIPRI-UNA (1998) Las micorrizas de la mandioca. DIPRI-UNA (1997) With F. Yubero. Cinetica de hidrolisis de nicotinamida con lantanidos en presencia de fosfatos o arseniatos o piroantimoniatos o nitratos (1996) With J.V. Boveda & A. Abrão. Reconhecimento de terras raras individuais por meio de seus complexos fluorescentes com tetraciclina (1993) With V. Zanotti Cavazzoni, A. Miquel, P. Maisare & J. Malvetti. Los autoantígenos en el diagnostico y la terapia del câncer. Autoantígenos y marcadores (1987) With H. Zaldívar de Espínola, V.E. Zanotti Cavazzoni, J. Malvetti & A. Miquel. Terapeutica autoantigenica en alergia infantil (1982) With V.E. Zanotti Cavazzoni, J. Malvetti & A. Miquel. Detection of cancer for antigen-antibody interaction. J. Clin. Chem. Clin. Biochem. 19(8):885, 1981 With C. Sanabria & A. Miquel. Contribución en el tratamiento de procesos alergicos con autoantígenos. Rev. Soc. Cient. Paraguay (1981) Paraguayan diagnosis and treatment for cancer. Coevol. Quart. (1978) Contribución en el tratamento de los procesos alérgicos con la autovacuna E Autovacuna microbiana coadyuvada por fosfolipídios Analisis físico-quimico para el diagnostico clinico y preclinico. Rev. Circ. Parag. Medicos Screening de hongos comestibles que crecen en el Paraguay. Rev. Soc. Cient. Paraguay 1(2):85-9, Prueba de fluorescência de las sustâncias extraídas de la sangre y de otros líquidos orgânicos. Rev. Soc. Parag. Med. Militar 206:9-19, With J. Malvetti, V.M. Zanotti Cavazzoni & B. Cohenca de Siminovich. Bacterias patógenas más frecuentes encontradas en tracto genito urinário y sus sensibilidades antibióticas
José Zaclis
José Zaclis, Romanian-born Brazilian neuroradiologist (Telenesti, Moldavia 15 February 1917 – São Paulo 20 October 1983) Developed many surgical techniques Modification on the technique of peripheral neurectomy for treatment of trigeminal neuralgia. Arq. Neuropsiq. 7(1):29-30, 1949 As neurectomias periféricas no tratamento das neuralgias do trigêmeo. Arq. Neuropsiqu. 9:228-75, 1951 Authored the thesis Pan-angiografia cerebral por hipertensão pulmonary (1958) translated into many languages in which described the technique of cerebral pan-angiography by means of injection of contrast medium into a single artery while simultaneously producing transient intrathoracic hypertension A new method of cerebral angiography. Arch. Neuropsiqu. S. Paulo 17:1-22, 1959 Developed a modified Valsalva manoeuvre (1964) With R. Zaclis. A new method of surgical treatment for carotid-cavernous fistula (1973)
Jose Francisco Zikan
José Francisco Zikán, Czech-born Brazilian entomologist (Tepliz-Schoenau, Bohemia 19 March 1881 – São Paulo 23 May 1949) Authored 61 papers Elucidated the complete life cycle of a number of Brazilian species of insects DESCRIBED NEW TAXA Lepidoptera Genera Stichelia 1949 Neomelese 1968 Paramelese 1968 Species At least 95 Coleoptera O gênero Parandra Latr., 1804, com a descrição de 14 espécies novas (Col; Cerambycidae). Rev. Soc. Ent. Arg. 14:22-50, 1948 Hymenoptera Described 90 new species of genus Mischocyttarus, beyond other species in this group HONORS Zikania Borgmeier 1925 (Diptera) Zikaniola Carvalho 1946 (Hemiptera) Zikanita Lane 1943 (Coleoptera) Zikanapis Moure 1945 & Zikaniella Moure 1941 (Hymenoptera) Lepidozikania Travassos 1949 (Lepidoptera) Zikanella Hering 1932 (Lepidoptera) Zikanyrops Hopp 1928 (Lepidoptera) Subg. Zikandra Santos Silva 2003 (Coleoptera) His son, Walter Zikán, entomologist and politician (Mar de Espanha, Minas Gerais State 06 June 1910 – Itatiaia, Rio de Janeiro State 05 March 1989) Authored 12 entomological works With his father co-described at least 16 new species of butterflies HONORS Walterianella Bechyné 1955 (Coleoptera)