Yuzhe Zhang
Yuzhe Zhang, Chinese astronomer (Minhou, Fujian Province 16 February 1902 – Nankin 21 July 1986) Determinated rotation periods of minor planets Discovered about 1000 asteroids with his assistants such as 3789 Zhongguo (1928), 2051 Chang Discovered three comets: 60 P/Tsuchinshan, 62 P/Tsuchinshan and C/1977V1 Discovered one lunar crater Authored one of the first studies about artificial satellite orbits in the world (with theories later proven to be accurate) With Jiaxang Zhang. An investigation on the orbital motion of an artificial satellite. Acta astron. Sinica (1957) HONOURS 2051 Chang Zhangyuzhe moon crater
Wenying Zhuang
Wenying Zhuang, Chinese mycologist (Beijing 27 July 1948 – DESCRIBED SOME CAUSATIVE AGENTS OF PLANT DISEASES Botrytis sinoviticola 2014 (gray mold disease of table grapes) Botrytis sinoallii 2010 (grey mould of Allium) Botrytis fabiopsis 2010 (chocolate spot of broad bean) DESCRIBED FUNGI TAXA Genera (11; incomplete) Calycellinopsis 1990 Chaetopsinectria 2010 with Luo Deltosperma 1988 Eoaleurina 1986 with Korf Kimbropezia 1991 with Korf Pfistera 1991 with Korf Rhizoscyphus 2004 with Korf Volutellonectria 2012 with Luo Xeromedulla 1987 with Korf Species About 180 Subspecies 18 HONORS Wenyingia Wang & Pfister 2001 (Fungi) Wenyingzhuangia Liu, Liu, Liu, Zhou, Qi & Liu 2014 (Bacteria)
Sibte Hasan Zaidi
Sibte Hasan Zaidi, Indian pathologist and toxicologist (Jarwal Village, Uttar Pradesh State 15 April 1918 – New York 05 April 2008) Established the pathogenesis and etiology of progressive massive fibrosis of the coal workers Showed the role of small amounts of free silica in the pathogenesis of pneumoconiosis Demonstrated the requirement of a mucus barrier in the prevention of peptic ulcer disease (1957) With S. Nityanand developed rodent models of atherosclerotic heart disease and experimental myocardial infarction (1963) LINKS http://insaindia.org/BM/BM36_0908.pdf
Rodrigo Zeledón Araya
Rodrigo Zeledón Araya, Costa Rican parasitologist, medical entomologist and microbiologist (Puntarenas 15 February 1930 – 11 September 2023) Authored over 240 papers, 4 monographs, 9 books and 15 book chapters First to obtain in vitro culture of Dermatobia hominis larvae With S. Silva. Attempts to culture the parasitic stage of Dermatobia hominis (L. Jr.) in vitro (Diptera: Cuterebridae). J. Parasitol. 73(5):907-9, 1987 Elucidated the complete life cycle of trematode species Paragonimus mexicanus With R. Brenes & G. Rojas. Biological cycle and taxonomic position of a Costa Rican Paragonimus and the present status of Paragonimus from the New World. Brenesia 18:353-366, 1980 Discovered and described the phenomenon of nymphs of Triatoma dimidiata hide itselves in the dust of houses With A. Zuñiga & J.C. Swartzwelder. The camouflage of Triatoma dimidiata and the epidemiology of Chagas’ disease in Costa Rica. Bol. Chil. Parasitol. 24(1):106-8, 1969 Described a sensitive skin test for chronic Chagas disease With C. Ponce. A skin test for the diagnosis of Chagas disease. Trans. Royal Soc. Trop. Med. Hyg. 68:414-5, 1974 Developed a culture medium for distinguishing Trypanosoma cruzi and Trypanosoma rangeli Differentiation of Trypanosoma rangeli and Schizotrypanum cruzi in a liquid medium with notes on the nutrition of hemoflagellates. J. Parasitol. 45(6):652, 1959 First to demonstrate that flagellates protozoan bind favouredly to cells surface of insects rectal glands With R. Bolaños & M. Rojas. Scanning electron microscopy of the final phase of the life cycle of Trypanosoma cruzi in the insect vector. Acta tropica 41(1):39-43, 1984 Demonstrated the relationship between the physiology of Leishmania mexicana and the body temperature of Guinea pig Developed a method to isolate Leishmania panamensis from Phlebotomus sp. With C. Ponce, R. Soto & J. Murillo. A method for the isolation of Leishmania braziliensis from sandflies (1977) Proposed the utilization of an antigen from Crithidia oncopelti in Montenegro intradermal test With R. Hidalgo & H. Hidalgo. The Montenegro intradermal reaction with Strigomonas oncopelti antigen. A preliminary note (1960) Presented a new treatment of Costa Rican cutaneous leishmaniosis with drug infiltration into lesion With E. Solano & H. Hidalgo. Successful intralesional treatment of leishmaniasis caused by Leishmania brasiliensis panamensis using glucantime. Med. Cutan. Ibero Lat. Am. 12(1):19-24, 1984 Proposed visitation index, a d-risk parameter A new entomological indicator useful in epidemiological studies and in control campaigns against Chagas disease. Entomol. Vect. 10:269-76, 2003 First to describe the possibility of spontaneous cure for Chagas disease With J.C.P. Dias, A. Brilla Salazar, J.M. Rezende, L.G. Vargas & A. Urbina. Does a spontaneous cure for Chagas disease exist? Rev. Soc. Bras. Med. Trop. 21:15-20, 1988 Papers with more than 100 citations With V. Montenegro, M. Jimenez & J.C. Pinto Dias. Chagas disease in dogs from endemic areas of Costa Rica. Mem. Inst. Oswaldo Cruz 97(4):491-4, 2002 With J. Rabinovich. Chagas disease: an ecological appraisal with special emphasis on its insect vectors. Ann. Rev. Entomol. 26:101-33, 1981 With R. Alvarado & L.F. Jirón. Observations on the feeding and defecation patterns of three Triatominae species (Hemiptera: Reduviidae). Acta Trop. 34(1):65-77, 1977 DESCRIBED NEW SPECIES Protozoa Leishmania herreri 1979 with Ponce & Murillo Leptomonas costaricensis 2006 with Yurchenko et al. Trypanosoma leonidasdeanei 1969 with Rosabal Arthropoda Triatoma ryckmani 1972 with Ponce HONORS Zelonia Shaw, Camargo & Teixeira 2016 (Protozoa) LINKS http://www.conicit.go.cr/sector_cyt/cientificos/especialistas/RodrigoZeledon.pdf (Spanish)
Peishan Zhang
Peishan Zhang or Pei-Shan Chang, Chinese geologist, mineralogist and geochemist (Tengxian County, Shandong Province June 1925 – With Z.M. Yang & K.J. Tao. New varieties of Na-Ca-Ba-RE Fluorocarbonate series minerals. J. Rare Earths 12(4):289-93, 1994 DESCRIBED MINERAL SPECIES Bafertisite 1959 with Semenov Huanghoite -(Ce) 1961 with Semenov Zhonghuacerite -(Ce) 1981 with Tao & Li Aeschynite -(Nd) 1982 with Tao Cebaite -(Nd) 1986 with Tao Parisite -(Nd) 1986 with Tao A Nd-Nb-Ti silicate 1986 with Tao Fergusonite -(Nd) 1987 with Tao Fluorokinoshitalite & Fluorotetraferriphlogopite 2011 with Miyawaki, Shimazaki, Shigeoka, Yokoyama, Matsubara, Yurimoto & Yang HONORS Zhangpeishanite Shimazaki, Miyawaki, Yokoyama, Matsubara & Yang 2008 (Mineral)
Pedro Elías Zadunaisky
Pedro Elías Zadunaisky, Argentine astronomer and mathematician (Rosario 10 December 1917 – Buenos Aires 07 October 2009) Authored over 40 publications such as A Guide to Celestial Mechanics Authored A determination of the orbit of Phoebe, ninth satellite of Saturn. Astron. J. (1954), with gained international repercussion Computed the Halley comet with accuracy The motion of Halley’s comet during the return of 1910. Astron. J. (1966) METHODS Developed Zadunaisky iterated defect correction A method for estimation of errors propagated in the numerical solution of a system of ordinary differential equations. The theory of orbits in the Solar System and in Stellar Systems. Proc. Symposium Intern. Astron. Union 25, 1964 Un metodo de interacción para la resolución de sistemas de ecuaciones lineales algebricas. Rev. Union Mat. Arg. (1955) With V. Pereyra. On the convergence and precision of a process of successive differential equations (1965) With Rodolfo Rodríguez. A stable method to estimate perturbations in differential equations. Computers & Mathematics with Aplication (1986) OTHER CONTRIBUTIONS Small perturbations on artificial satellites as an inverse problem. Trans. Aerosp. Electr. Systems IEEE 39(4):1270-6, 2003 HONORS Asteroid Zadunaisky 4617