Jose Gregorio Hernandez

José Gregório Hernandez Cisneros, Venezuelan pathologist (Isnotú, Trujillo State 25 October 1864 – Caracas 26 June 1919) Demonstrated that the quantity of red cells in inhabitants of tropical region is smaller than that in temperate zones Sobre el numero de los globulos rojos. Gac. Med. Caracas 1(15):84, 1893-4 Described the angina pectoris of yellow fever Sobre la angina de pecho de naturaleza paludosa. Gac. Med. Caracas 1(21):129-31, 1894

Jorge Ignacio Hernandez Camacho

Jorge Ignacio Hernandez Camacho, Colombian naturalist, ecologist and conservationist (Bogotá 17 January 1935 – near Cartagena 15 September 2001) DESCRIBED TAXA Plants Subfamily Trigonobalanoideae with Lozano & Henao Species Alfaroa colombiana with Lozano Contreras & Espinal Matisia uribei with García Barriga Mucuna cuatrecasasii 1988 with C. Barbosa Mucuna killipiana 1988 with C. Barbosa Trigonobalanus excelsa with Lozano Contreras & Henao Vasconcellea sphaerocarpa with Garcia Barriga Amphibia Genus Osornophryne 1976 with Ruiz Carranza Species Agalychnis danieli 1988 with Ruiz Carranza & Rueda Almonacid Atelopus carauta 1978 with Ruiz Carranza Atelopus laetissimus 1994 with Ardila Robayo & Ruiz Carranza Atelopus leoperezii 1994 with Ardila Robayo & Ruiz Carranza Atelopus minutulus 1988 with Ardila Robayo & Ruiz Carranza Atelopus nahumae 1994 with Ardila Robayo & Ruiz Carranza Centrolene paezorum 1986 with Ruiz Carranza & Ardila Gastrotheca andaquiensis 1976 with Ruiz Carranza Osornophryne percrassa 1976 with Ruiz Carranza Reptilia Species  Anolis inderenae 1988 with Rueda Almonacid Aves  Subspecies Forpus conspicillatus metae 1961 with Borrero Grallaria alleni andaquiensis 1979 with Rodríguez M. Grallaria rufocinerea romeroana 1979 with Rodríguez M. Haplophaedia aureliae bernali 1979 with Romero Zambrano  Momotus subrufescens olivaresi 1978 with Romero Zambrano  Mammalia Living Species/Subspecies Diclidurus (Diclidurus) ingens 1955 Heteromys (Heteromys) anomalus hershkovitzi 1956 Lonchorhina marinkellei 1978 with Cadena G. Microsciurus santanderensis 1957   Fossil Genus Colombibos 1960 with Porta Species  Colombibos atactodontus 1960 with Porta

Jorge Haddad

Jorge Haddad, Brazilian gastroenterologist (São Paulo 12 January 1929 – São Paulo 09 May 1975) Developed Duhamel-Haddad operation With A. Raia & A. Correa Netto. Abaixamento retro-retal do cólon com colostomia perineal no tratamento do megacolo adquirido. Operação de Duhamel modificada. Rev. Ass. Med. Bras. 11:830-50, 1965 Treatment of acquired megacolon by retrorectal lowering of the colon with a perineal colostomy: modified Duhamel operation. Rev. Hosp. Clin. Fac. Med. S. Paulo 23:235-53, 1968 and Doctoral Thesis SOME BIBLIOGRAPHY With A. Habr Gama, O. Simonsen, D.E. Cutait, A. Raia et al. Volvulus of the sigmoid colon in Brazil. A report of 230 cases. Dis. Colon Rectum 79:314-20, 1976  With J.M. Benedicto, W. Paula & A. Raia. Tuberculose intestinal. Aspectos anatomo-clinicos (Considerações sobre 33 casos). Arq. Gastroent. 9:65-70, 1972 Relation of gastroesophageal reflux to yield sphincter pressures. Gastroenter. 58:175-84, 1970 With A. Raia & E.A. Erhart. Estudo das atividades sexuais nos pacientes portadores de megacólon, antes e após a retossigmoidectomia abdominoperineal. Rev. Paul. Med. 55:343, 1959 Colostomy treatment of traumatic injuries of the large intestine. Dis. Colon Rectum 17:188-93, 

John Hewitt

John Hewitt, English-born South-African zoologist and archaeologist (Dronfield, nearby Sheffield, England 23 December 1880 – Grahamstown 04 August 1961) Described the Wilton culture With A.P. Stapleton reported the first account of Howiesons Poort Culture DESCRIBED NEW TAXA Mammalia Subspecies Pronolagus rupestris saundersiae 1927 Reptilia Genera Narudasia 1913 with Methuen Rhoptropella 1937 Species 40 valid species Amphibia Genera Anhydrophryne 1919 Arthroleptella 1926 Microbatrachella 1926 Natalobatrachus 1913 with Methuen Species About 20  Arachnida Genera Australoonops 1915 Daesiella 1934 Drassodella 1916 Hermachola 1915 Idiothele 1919 Karasbergia 1914 Muizenbergia 1915 Species At least 35 HONORS   Hewittia Lessert 1928 (Arachnida) Hewittella Cameron 1906 (Hymenoptera)

John Barry Hawthorne

John Barry Hawthorne, South African geologist and entrepneur (Kimberley, Northern Cape Province 19 May 1934 – Scarborough, Cape Town 15 November 2018) Gave relevant contributions to kimberlite geology, diamond studies and upper mantle geology Showed that kimberlites were undoubtedly magmas With J.B. Dawson. Magmatic sedimentation and carbonatitic differentiation in kimberlite sills at Benfontein, South Africa. J. Geol. Soc. 129(1):61-85, 1973 With J.W. Harris, M.M. Osterveld & E. Wehmeyer. A classification scheme for diamond, and a comparative study of South African diamond characteristics. Phys. Chem. Earth 9:765-83, 1975 Proposed the composite geological model for many southern African pipes Model of a kimberlite pipe. Phys. Chem. Earth 9:1-15, 1975 SOME BIBLIOGRAPHY With C.R. Clement, J.W. Harris & D.N. Robinson. The DeBeers kimberlite pipe – a historic South African diamond mine. Mineral Deposits of Southern Africa. Geol. Soc. South Afr. 2:2193-2214, 1986  With J.W. Harris & M.M. Osterveld. A comparison of diamond characteristics from the DeBeers Pool mines, Kimberley, South Africa. Ann. Sci. Univ. Clermont-Ferrand 2(74):1-13, 1984 With A.J. Carrington, C.R. Clement & E.M.W. Skinner. Geology of the Dokolwayo kimberlite and associated paleo-alluvial diamond deposits (1979) With J.W. Harris & M.M. Osterveld. Regional and local variations in the characteristics of diamonds from some Southern African kimberlites (1979) With C.R. Clement, E.M. Skinner, L. Klenjan & H.L. Allsopp. Precambrian ultramaffic dykes with kimberlite affinities in the Kimberley area. (1975) With J.B. Dawson. Intrusion features of some hypabyssal South African kimberlites. Bull. Volcan. 34 (3):740-57, 1970 Kimberlite sills. Trans. Geol. Soc. S. Afr. 71:291-311, 1968 HONORS Hawthorneite Grey, Madsen & Haggerty 1987 (Mineral)  

Jisheng Han

Ji-sheng Han, Chinese neurophysiologist (Xiaoshan, Zhejiang Province 28 July 1928 – Authored over 400 scientific papers Discovered that serotonin (5-HT) and opioid peptides are the two main chemical substances mediating acupuncture analgesic effect First to find the functional balance between opioid peptides and the anti-opioid peptides that determines the efficacy of acupuncture analgesia in different individuals Discovered that the most important determination of acupuncture effect is the frequency of impulses transmitted along the nerve fibers from periphery to central nervous system Invented Han’s acupoint nerve stimulator (HANS) used to treat neurological disorders and pain LINKS http://www.han-institute.com/founders/dr-ji-sheng-han/