Joao Semir
João Semir, Brazilian botanist (Palmital, São Paulo State 24 August 1937 – Campinas, São Paulo State 08 November 2018) DESCRIBED PLANTAE TAXA Genera Burlemarxia 1991 with Menezes Lychnophorella 2019 with Loeuille & Pirani Species Adenocalymma ubatubensis 1999 with Assis Bulbophyllum involutum 1998 with Borba & F. Barros Burlemarxia pungens 1991 with Menezes Burlemarxia rodriguesii 1991 with Menezes Calibrachoa eglandulata 1998 with Stehmann Calibrachoa missionica 2005 with Sethmann Ceiba lupuna 2002 with Gibbs Chronopappus lanatus 2019 with Loeuille & Pirani Colobus argenteus 2018 with Monge Critoniopsis canaliculata 2019 with Monge Critoniopsis hermogenesii 2019 with Monge Elephantopus piauiensis 2003 with Barros Euploca krapovickasii 2009 with Melo Euploca pottii 2009 with Melo Euploca rodaliae 2006 with Melo Genipa infundibuliformis 1995 with Zappi Griffinia angustifolia 2017 with Campos Rocha & Dutilh Heterocoma gracilis 2013 with Loeuille& Nakajima Heterocoma robinsoniana 2013 with Loeuille & Nakajima Hippeastrum diniz-cruziae 2013 with Dutilh Hoffmannseggella viridiflora 2007 with Verola Ichthyothere matogrossensis 2000 with Pereira Ichthyothere perfoliata 2001 with Pereira Lepidaploa aurata 2018 with Monge Lepidaploa congesta 2019 with Monge Lessingianthus squamosus 2018 with Monge Lychnophora grisea 2019 with Loeuille & Pirani Lychnophora haplopappa 2019 with Loeuille & Pirani Lychnophora nanuzae 2014 Lychnophora rupestris 2014 Lychnophorella jacobinensis 2019 with Loeuille & Pirani Minasia lweinsohnii 2004 with de Jesus Minasia ramosa 2011 with Loeuille & Robinson Nicotiana mutabilis 2002 with Stehmann Petunia secreta 2005 with Stehmann Pictocarpa barbata 2018 with Volet Piptolepis campestris 2012 with Loeuille Piptolepis riparia 2019 with Loeuille & Pirani Pleurothallis fabiobarrosii 2000 with Borba Prestelia espeletoidea 2019 with Loeuille & Pirani Proteopsis hermogenesii 2019 with Loeuille & Pirani Tessaria andina 2018 with Monge & Anderberg Vernonanthura spathulata 2018 with Monge HONORS Semiria D.J.N. Hind 1999 (Asteraceae)
Joao Evangelista Steiner
João Evangelista Steiner, Brazilian astrophysicist (São Martinho, Santa Catarina State 01 March 1950 – São Martinho, Santa Catarina State 10 September 2020) From German descent His mother, Alzira Boeing, was a relative to brothers Wilhelm (that founded Boeing) and Werner Boeing ASTROPHYSICS Discovered 20 quasars and the pulsar HD7758 Vela X-1 (1977) With J.E. Grindlay, W.R. Forman, J. McClintock & C.R. Canizares. Discovery of low redshift x-ray quasars: a possible new key to the QSO phenomenon. Bull. Amer. Astron. Soc. 12:777, 1979 With T. Chebowski & J. Halpern. Discovery of a cataclysmic variable near Sirius (1980) With M.G. Watson, I.M. McHardy, J.P. Pye, F.J. Jablonski & I.C. Busko. A new x-ray cataclysmic variable. Bull. Amer. Astron. Soc. 12:885, 1980 With T. Chebowski & J.P. Halpern. Discovery of a new x-ray emitting dwarf nova. Bull. Amer. Astron. Soc. 12:885, 1980 With J. Stocke, J. Liebert, T. Maccacaro & R.E. Griffiths. Discovery of a narrow line quasar. Astrophys. J. 252:69-74, 1982 With J.E. Grindlay & T. Maccacaro. Discovery of two active galactic nuclei in clusters of galaxies. Astrophys. J. 259:482-5, 1982 With Francisco Jablonski discovered a dwarf star (VY) that describes a circular path around another star in only 97 minutes (1984) With M. Garcia, J. Patterson, D.A. Schwartz, R.S. Warwick, M.G. Watson & J.E. McClintock. Identification of two hard x-ray emitting Be stars using the HEAO-1 Scanning Modulation Collimator. Astrophys. J. 280:688-94, 1984 With F.J. Jablonski. NSV12615: an eclipsing cataclysmic variable with ultrashort period. Astrophys. J. 313(1):376, 1987 With D. Cieslinski, F.J. Jablonski & G.R. Hickel. BY Apodis: a new Mira variable. Inform. Bull. Variable Stars 4528:1, 1997 With R.B. Menezes & T.V. Ricci. Discovery of an Hα emitting disk around the supermassive black hole of M31. Astrophys. J. Lett. 762:L29, 2013 Identified narrow lines of Seyfert galaxies as quasars With N.P. Carleton. Correlations between infrared, optical, x-ray fluxes from Seyfert galaxies and quasars. Bull. Amer. Astron. Soc. 13:520, 1981 Proposed that LINERS galaxies display active nuclei and consequently that most galaxies have a black hole in its core (com J.P. Halperin) With J. P. Halpern. Low ionization active galactic nuclei: x-ray or shock heated? Astrophys. J. 269:37-41, 1983 Proposed the theory of LINERS explaining such common objects as mini-quasars Proposed the existence of a new class of stars called V Sagittae Stars and explained their luminosity as due to hydrostatic nuclear reactions on the surface of accreting white dwarfs With M.P. Díaz. The V Sagittae stars. Publ. Astron. Soc. Pacific 110 (745):276-82, 1998 First to observe the sudden death phenomenon of binary stars With A.S. Oliveira, D. Cieslinski & T.V. Ricci. Assisted stellar suicide in V617 Sgr. Astron. Astrophys. 447(2):1-4, 2006 Showed the mechanism of formation of ionized gas winds in black holes With D. May. A two-stage outflow in NGC 1068. Monthly Notices of the Royal Astronomical Society 469(1), 2017 Proposed an universal outflow mechanism by black holes With D. May, R.B. Menezes, D.R.A. Williams & J. Wang. The nuclear architecture of NGC4151: on the path toward a universal outflow in light of NGC1068. Mont. Notices Roy. Astron. Soc. 496(2):1488-1516,2020 METHODS A spectrophotometric classification of low-redshift quasars and active galactic nuclei. Astrophys. J. 250:469-77, 1981 With R. Baptista. Improving the eclipse mapping method. Astron. Astrophys. 277:331, 1993 With R.B. Menezes, T.V. Ricci & A.S. Oliveira. Mapping low and high density clouds in astrophysical nebulae by imaging forbidden line emission. Monthly Notices of the Royal Astronomical Society 396(2), 2009 With R.B. Menezes, T.V. Ricci & A.S. Oliveira. PCA tomography: how to extract information from data cubes. Monthly Notices of the Royal Astronomical Society 395(1):64-75, 2009 With R.B. Menezes & T.V. Ricci. A treatment procedure for Gemini North/NIFS data cubes: application to NGC4151. Monthly Notices of the Royal Astronomical Society 438:2597-20, 2014 With R.B. Menezes, P. da Silva & T.V. Ricci. A treatment procedure for VLT/SINFONI data cubes: application to NGC5643. Monthly Notices of the Royal Astronomical Society 450:369-96, 2015 With R.B. Menezes, T.V. Ricci & P. da Silva. A treatment procedure for GMOS/IFU data cubes: application to NGC2835. Monthly Notices of the Royal Astronomical Society (2019) Adapted and improved the analysis of main components to analyze the immense amount of data generated by integral field spectroscopy (2009) Developed differential photometry technique for viewing cataclysmic variable stars (1990s) Developed data cube analysis method with three-dimension informations
Jitendra Kumar Sen
Jitendra Kumar Sen, Indian palaeobotanist (Howrah, West Bengal 02 December 1921 – Calcutta 12 December 1966) HONORS (Fossil) Senia Khan 1969 (Plantae) Senotheca Banerjee 1969 (Plantae) Seniasporites Sah & Kar 1969 (Sporae) Senipites Srivastava 1969 (Sporae) Senispora Bandyopadhyay 1972 (Sporae)
Jinzhang Sheng
Jinzhang Sheng, Chinese micropaleontologist and biostratigrapher (Jingiang, Jiangsu Province 15 May 1921 – 07 January 2007) Recognized over the world for his work in foraminiferal studies DESCRIBED FOSSIL TAXA Foraminifera Genera Chenia 1963 Nanlingella 1981 with Rui Protoweddekindella Robustoschwagerinoides 1984 with Wang & Zhang Taitzehoella 1951 Wutuella 1963 Species At least 152 Radiolaria (with Wang) Genus Longtanella 1985 Species Cubaxonium antiquorum 1982 Hegleria mammilla 1985 Longtanella zhengpanshanensis 1985 Pseudoalbaillella bella 1985 Pseudoalbaillella longtanensis 1985 Pseudoalbaillella nanjingensis 1985 Spongotripus xintianensis 1982 Stauroplegma lepidum 1982 Stauroplegma pulcherrimum 1982 Stauroplegma robustospina 1982 HONORS (Fossil Foraminifera) Shengella Yang 1985 Jinzhangia Ueno 2001 HONOURS Joseph A. Cushman Award (1996)
Jayme Luiz Szwarcfiter
Jayme Luiz Szwarcfiter, Jewish Brazilian mathematician and computer scientist (Rio de Janeiro 05 July 1942 – With D.E. Knuth proposed a structured program to generate all topological sorting arrangements known as Knuth-Szwarcfiter sorting algorithm (1974) With A. Itai & C. Papadimitriou proved the problem of determining whether or not an instance (G,s, t) of a Hamilton path problem has a solution is NP-complete (1982) Showed that the general problem of optimizing the cost of a tree, given the keys, the probabilities and the page limit is NP-hard (1984) Developed polynomial algorithm for recognizing, finding isomorphism between and finding minimum equivalent directed graphs for tree reducible graphs (1985) Introduced the class of connectively reducible digraphs (1989) With C.E. Bornstein characterized the clique graphs of chordal graphs and the clique graphs of path graphs (1994) With G. Chaty gave an algorithm for generating all distinct kernels in a directed graph D with no odd directed circuits (1994) Introduced the concept of local comparability graphs and showed that every local comparability graph is a difference of two comparability graphs (1995) Described a characterization of clique-Helly graphs leading to a polynomial time algorithm for recognizing them (1997) With C.L. Lucchesi & C.P. de Mello described the family of minimal graphs which are clique-complete but have no universal vertices (1998) With F. Protti & F. França presented a parallel algorithm for generating all maximal cliques of a graph (1997) With E. Caceres & S. Song invented a new technique, the unrestricted depth search and presented a parallel algorithm for finding the maximal cliques of a circle graph using the Coarse grained multicomputer model (2001) With M.R. Cerioli showed that the class of starlike graphs contains the class of edge clique graphs of generalized starlike graphs and every starlike graph which is an edge clique graph is an edge clique graph of a generalized starlike graph (2002) With M.R. Cerioli proved that a starlike threshold graph is an edge clique graph if and only if its maximal cliques and intersections of maximal cliques are triangular sets (2002) With M. Moscarini & R. Petreschi described necessary and sufficient conditions for finding the node-search number of a uniform K-starlike graph With P.E. Lauer developed an algorithm for enumerating all the directed circuits of a directed graph on edges, vertices and directed circuits With D. Artigas, S. Dantas e M.C. Dourado developed a linear-time algorithm to decide if a cograph is p-convert (2011) With C.C. Centeno, M.C. Dourado et al. described a general reduction principle for irrf(G) 2012 LINKS http://link.springer.com/article/10.1007/s13173-011-0054-2
Jaroslav Soukup
Jaroslav Soukup, Czech-born Peruvian Salesian priest and entomologist (Pribram 10 March 1902 – Lima 14 November 1989) DESCRIBED NEW TAXA Diptera (with A. Vimmer 1940) Valid Genera Chaetopalpus Gimnojurinella Metopiopsis Neocyrtophoeba Parabothria Pseudoophirion Sarcophila Plantae Tropaeolum vargasianum 1946 HONORS Sokkupia Mello-Leitão 1949 (Arachnida)