Autar Singh Paintal
Autar Singh Paintal, Indian physiologist (Mogkok, Burma 24 September 1925 – Delhi 21 December 2004) Authored about 400 publications ACHIEVEMENTS Discovered several sensory receptors such as atrial B receptors (1953), ventricular pressure receptors (1955), gastric stretch receptors (1954), muscle pain receptors (1960) and mucosal mechanoreceptors of the intestines Discovered juxtapulmonary capillary or type J receptors (1955) Established the properties of various receptors Characterized the reflex and sensory actions of pulmonary J receptors Introduced the concept of viscerosomatic inhibition With R.L. Riley showed that aortic chemoreceptors were stimulated by reducing oxygen availability (1976) Discovered the principle relating to the relative dilution of multiple solutes in flowing fluids (1991) With C.C. Hunt coined fusimotor neurons Introduced P index for evaluation of galvanic skin responses (1951) Developed single-fibred dissection and electrophysiological techniques Discovered that non-myelinated fibres are blocked at lower temperatures and then proposed a technique to distinguish reflexes mediated by myelinated afferents from those mediated by non-myelinated ones involving usage of liquid paraffin for immersing nerves while dissecting and recording from them (1953) Developed technique of injection of chemicals into the circulation to discover “silent” visceral receptors (1954) With A. Anand introduced a new method for measuring the in vivo concentration of J-receptors excitants (1991-3)
Arturo Posnansky
Arthur Posnansky, Austrian-born Bolivian anthropologist, archaeologist and geographer (Wien 13 April 1873 – La Paz 13 September 1946) Proposed a new secondary sexual character Un Nuevo caracter sexual secundario. Rev. Soc. Cient. Bolivia 1 (1930) Developed a device for craniometric measures in photographies Ein neues craneometrisches instrument und seine Verwendung zur Herstellung von Messbildern (1913) Patented a machine for quinoa’s large-scale production Gained international recognition for his studies about old civilizations of Titicaca Lake Authored Tihuanacu, la cuna del hombre americano (1945), a classical work of universal archaeology HONORS Posnanskytherium Liendo Lazarte 1943 (Fossil Mammalia)
Arsene Puttemans
Arsene Puttemans, Belgian-born Brazilian mycologist and landscape gardener (Bruxelles 28 February 1873 – Rio de Janeiro 03 May 1937) German mycologist P. Hennings described 7 genera and 205 new species from the material that he collected (1902-6) Observed Magnaporthe grisea on the wheat and Cladosporium fulvum on potato plant Described the inflorescences disease of cauliflower caused by Alternaria brassicae Sacc. (1911) Showed that the propagation of sugar cane mosaic was due to a Thrips species in Brazil (1926) Reported the bean disease caused by Isariopsis griseola (1906) Puccinia justiciae 1934 (rust of Achillea millefolium) Uredo rochaei (rust of Myrciaria jaboticaba) Puccinia cambucae (rust of Myrciaria plicato-costata) DESCRIBED FUNGI SPECIES Cercospora chrysanthemi 1911 (cercosporal leaf spot) Cercospora eranthemi 1934 Colletotrichum perseanum 1934 Dactylella ulmi Gloeosporium bombacis (1920) Leptocapnodium brasiliensis 1904 (coffee fumagina) Limacina coffeicola 1904 Mycosphaerella arthraxonicola Oidium begoniae 1911 Puccinia camargoi 1930 Puccinia cambucae Puccinia justiciae 1934 Uredo rochaei AUTHORED Novo processo de “centragem” rápida da platina microscópica e “reperagem” (localização) ultrarápida dos objetos microscópicos Novo sistema de mesa graduada para desenho microscópico, especialmente adaptada aos últimos modelos de microscópios binoculares Nouvelles maladies de plantes cultivées. Bull. Soc. Roy. Bot. Belgique 48:238, 1911 HONORS (Fungi) Puttemansia Hennings 1902 Puttemansiella Hennings 1908
Arcadio Poveda
Renan Arcadio Poveda Ricalde, Mexican astronomer (Merida, Yucatán Province 15 July 1930 – 24 March 2020) ACHIEVEMENTS Regarded as founder of infrared stellar cosmogony (1964-7) Developed Poveda method for calculating the mass of elliptical, spherical and ellipsoidal galaxies (1958) Discovered a relationship between the mass of a stellar powder-free system and its total luminosity (1961) Predicted that younger stars are involved in a gaseous and brilliant powder capsule in infrared (1965) With C. Allen & J. Ruiz showed that perturbations in young collapsing clusters originate runaway stars (1967) With L. Woltjer discovered a linear relationship (Sigma-D relationship) between the radio brightness and apparent diameters of supernova remnants and pointed out for the first time the connection between such remnants and some x-ray sources (1968) With C. Allen showed that multiple trapezoid systems are found in dynamical equilibrium state (1974) First classified binary and multiple stars in young and old ones With C. Allen & M. A. Herrera demonstrated that binary stars around sun show the dissociation effect due to gravitational interactions with molecular clouds With C. Allen & Parrao concluded that all double and multiple stars have at least one physical companion and one third of them have multiple companions (1982)
Antonio Sidney Pompeu
Antonio Sidney Pompeu, Brazilian plant geneticist (Taquaritinga, São Paulo State 16 June 1938 – Of Italian descent from paternal side DEVELOPED NEW VARIETIES OF DRY-BEANS With O. Paradela Filho. Novas linhagens do feijoeiro (Phaseolus vulgaris) dos grupos Rosinha e Roxinho, resistentes ao fungo da antracnose (Colletotrichum lindemuthianum). Summa Phytopath. 5(3-4):153-8, 1979 Catú, Aeté 3, Aroana 80, Moruna 80, Carioca 80 & Aysó (1982) IAC-Oirã, IAC-Poitara & IAC-Tupã (1987) IAC-Maravilha, IAC-Una, IAC-Carioca Pyatã, IAC Carioca Aruã, IAC Carioca Akytã & IAC-Bico de Ouro (1997) IAC- Carioca Eté & IAC-Carioca Tybatã (1999) with S.A.M. Carbonell, M.F. Ito & N. Bortoletto IAC-Votuporanga, IAC-Ybaté & IAC-Apuã (2005) PLANT PATHOLOGY With L.V. Crowder. Methods of inoculation and bacterial concentrations of Xanthomonas phaseoli Dows for the inheritance of disease reaction in Phaseolus vulgaris crosses (dry-beans), under growth conditions. Cien. Cult. 25(11):1078-81, 1973 With O. Paradela Filho & M.F. Ito. Novas raças fisiológicas de Colletotrichum lindemuthianum (Sacc. & Magn.) Scrib. (1982)
Antonio Maria Pineda
Antonio María Pineda Bujanda, Venezuelan surgeon (Barquisimeto, Lara State 27 September 1850 – Barquisimeto, Lara State 05 October 1941) Authored over 50 medical works INVENTIONS Folding operation tables Pineda catheter An electric thermometer (Pineda ideal thermometer) An eye teno-neurotome used to section of optical nerve (presented in 1922) Spatula for removal of foreign bodies in bladder A spatula for dissections A cautery torch Pineda probe for urinary retention A procedure to make refractory clay made instruments (1917) Magic tube for poising railways