Raymond Ferdinand Laurent
Raymond Ferdinand Louis Philippe Laurent, Belgian / Argentine herpetologist (Wasmes, Wallonian Region, Hainaut Province 16 May 1917 – San Miguel de Tucumán 03 February 2005) Developed a new biometrical method for finding better ratio characters DESCRIBED NEW TAXA Amphibia Families Herpelidae 1984 Mantellidae 1946 Hyperoliidae 1943 Phrynobatrachidae 1941 Subfamily Scaphiophryninae 1946 Genera Abroscaphus 1940 Acanthixalus 1944 Afrixalus 1944 Arthroleptulus 1940 Callixalus 1950 Chrysobatrachus 1951 Coracodichus 1940 Cryptothylax 1950 with Combaz Elaphromantis 1941 Heterixalus 1944 Heteropelis 1941 Hylobatrachus 1943 Indirana 1986 Kassinula 1940 Lynchophrys 1983 Phlyctimantis 1950 with Combaz Pseudophilautus 1943 Taphriomantis 1941 Reptilia Valid Genera Dendrolycus 1956 Helophis 1942 with De Witte Valid Species & Subspecies 101 HONORS Laurentophryne Tihen 1960 (Amphibia)
Ramón Latorre
Ramón Rogelio Latorre de la Cruz, Chilean biophysicist and cellular physiologist (Santiago 29 October 1941- ACHIEVEMENTS With spouse Cecilia Hidalgo measured the electric potential of jibia axons With M.C. Hidalgo. Effect of temperature on resting potential in giant axons of squid. Nature 221 (962):219, 1969 Set the basis for understanding voltage-dependent conductances with single channel studies many years before patch clamping techniques With G. Ehrenstein & H. lecar. Ion transport through excitability-inducing material (EIM) channels in lipid bilayer membranes. J. Gen. Physiol. 60:72, 1972 First to demonstrate the existence of ion channels in muscle tissue independently of other researchers (1981) Predicted that stimulus modifies the probability of open or close state of ion channels and not modifies their conductive capacity Demonstrated the multi-ion nature of calcium-activated voltage dependent potassium channel First described the protein random walk that coexists with ionic conductances gating, and the two state kinetic conditions determining the open and close state for such channels Conceived an experimental methodology to isolate ionic channels First to reconstitute a naturally occurring ionic channel into lipid bilayers Discovered a set of ion channels displaying activation by cyclic AMP With Spanish Miguel Valverde discovered that a modulatory beta subunit of the smooth muscle calcium and voltage-dependent potassium channel behaves as an estrogen receptor and first described the binding of etrogens to a calcium-activated ion channel With Argentine Enrico Stefani & Mexican Ligia Toro established the relationship between structure and function of calcium-activated K channel Holds about 8,600 citations HONOURS Visiting Researcher, Physiology Department of Duke University (1973) Assistant Professor, Department of Physiological and Pharmacological Sciences, Chicago University (1975) Associate Professor, Medicine College of Harvard University (1977) Elizabeth R. Cole (today Founders) Award, Biophysical Society of USA (1989) Distinguished Visiting Professor, Baylor College of Medicine, Houston (1989) Main Orator, Dies Accademicus, University of Ulm (1992) Foreign Member, National Academy of Sciences, United States (1999)
Ramon Godofredo Loyarte
Ramón Godofredo Loyarte Merino, Argentine physicist (Concepción del Uruguay, Entre Ríos Province 08 November 1888 – Buenos Aires 30 May 1944) Authored 40 works about magnetism and atomic spectroscopy Developed an experimental method for hysteresis losses With R. Gans. Uber drehende hysteresis. Arch. F. Elektr. 3(6):139-50, 1915 With R. Gans gave the first qualitative theoretical explanation about ferromagnetic resonance absorption in Ann. Physik 64(4):209, 1921 Showed that iron and nickel elements lost its magnetism the frequence of short Hertzian waves Conjectured the existence of quantum states of atomic rotation (1927), refuted by Loedel Palumbo Described a device for finding lines at ultraviolet light and discovered 60 new atomic emission lines El espectro de emisión del mercúrio entre 1868 y 3000 A°. Contribuciones 5:109-20, 1927 Proposed the 1, 4 volts addition and subtraction potential Sobre la existência del potencial de adición y subtracción 1,4 volt en el átomo de mercúrio (1928) Uber das Vorkommen des Additions und Substraktions-Potentials 1,4 Volt im Quecksilberatom. Physik. Zeitschr. 31:929-39, 1930 Developed a method for detecting adultering herbs in preparations of maté With M.H. de Bose. Sobre los espectros de observación de soluciones de yerba mate, caona, canelón y ante. Contr. Est. Cien. Fis. Mat. Ser. Matem. Fis. 82:197, 1928 Showed the possibility of determining with safety the doping in horses employing spectroscopic analysis of saliva With J. Placeres. Detection of alkaloids in animals by spectroscopic analysis of saliva (horse). Roentgen 1(7), 1938 With J. Placeres. Descubrimiento de alcaloides en animals inyectados por examen espectroscópico de la saliva. Rev. Fac. Cien. Fisicomat. (1940)
Ralph Lainson
Ralph Lainson, British parasitologist and protozoologist in Brazil (Upper Beeding, Sussex, England 21 February 1927 – Belém do Pará 05 May 2015) ACHIEVEMENTS Authored about 150 papers Demonstrated the role of wild rodents as reservoirs of cutaneous leishmaniasis in Central and South America With O. Causey first to show species of Leishmania other than Leishmania braziliensis infecting humans (1963) Described the first experimental transmission of Leishmania chagasi by the bite of the sandfly Lutzomyia longipalpis With R. Ward & J.J. Shaw. Experimental transmission of Leishmania chagasi, causative agent of neotropical visceral leishmaniasis, by the sandfly Lutzomyia longipalpis. Nature (London), 266(5603):628-630, 1977 With P. D. Ready. First experimental transmission of a neotropical Leishmania by the bite of a sandfly: identity of the vector. Transactions of the Royal Society of Tropical Medicine and Hygiene 76(1):130-131, 1982 With J.J. Shaw described Leishmania (Leishmania) amazonensis 1972, the etiologic agent of diffuse cutaneous leishmaniasis With F.T. Silveira, J.J. Shaw & R.S. Ribeiro. Cutaneous leishmaniasis in Amazonia. Report of the 1st human case of mixed infection, determined by 2 different Leishmania species: Leishmania brasiliensis and Leishmania mexicana amazonensis. Rev Inst Med Trop São Paulo 26(5):272-275, 1984 With A.P. Matos & I. Paperna. An erythrocytic vírus of the Brazilian tree-frog Phrynophryas venulosa. Mem. Inst. Oswaldo Cruz. 90(5):653-5, 1995 Developed new methods With J.J. Shaw. A simply prepared amastigote leishmanial antigen for use in the indirect fluorescent antibody test for leishmaniasis. J Parasitol 63(2):384-385, 1977 With R. Ward & J.J. Shaw. Some methods for membrane feeding of laboratory reared, neotropical sandflies (Diptera: Psychodidae). Ann Trop Med Parasitol 72(3):269-276, 1978 With M. A. Miles, M.M. Póvoa, A.A.A. Souza & J.J. Shaw. Some methods for the enzymic characterization of Latin-American Leishmania with particular reference to Leishmania mexicana amazonensis and subspecies of Leishmania hertigi. Transactions of the Royal Society of Tropical Medicine and Hygiene 74(2):243-252, 1980 With E.A.Y. Ishikawa & J.J. Shaw. A rapid and sensitive method for the identification of Leishmania with monoclonal antibodies using fluorescein-labelled avidin.. Transactions of the Royal Society of Tropical Medicine and Hygiene 83(6):783-784, 1989 DESCRIBED TAXA (Protozoa) Family Garniidae 1971 with Landau & Shaw Genera & Subgenera Alloglugea 1995 with Paperna Cyrillia 1981 Fallisia 1974 with Landau & Shaw Garnia 1971 with Landau & Shaw Hemolivia 1990 withPetit, Landau & Baccam Progarnia 1995 Saurocytozoon 1969 with Shaw Viannia 1987 with Shaw Species Described over 100 new Protozoa species and 4 Diptera species (until 2011) HONORS Lainsonia Landau 1973 (Protozoa)
Rajendra Nath Lakhanpal
Rajendra Nath Lakhanpal, Indian palaeobotanist (Sowaddi, Panjab 05 August 1923 – Lucknow 19 January 2012) DESCRIBED FOSSIL PLANTAE TAXA (incomplete) Genera Atlantioxylon 1978 with Prakash & Bande Baphioxylon 1970 with Prakash Brachystegioxylon 1970 with Prakash Calophylloxylon 1965 with Awasthi Euphorioxylon 1981 with Awasthi & Guleria Heritieroxylon 1981 with Prakash & Awasthi Isoberlineoxylon 1970 with Prakash Mallotoxylon 1964 with Dayal Mesuoxylon 1963 with Awasthi Mimosaceoxylon 1970 with Prakash Monocotylostrobus 1982 with Prakash & Bande Pterospermoxylon 1980 with Awasthi & Guleria Schleicheroxylon 1981 with Awasthi & Guleria Tetrameleoxylon 1966 with Verma Species Aphanamixis bhikhnatoriensis 1990 with Awasthi Araucarioxylon mohgaoensis 1975 with Prakash & Bande Ardisia antiqua Atlantioxylon indicum 1978 with Prakash & Bande Baphioxylon premicrophyllum 1970 with Prakash Bauhinia kachhhensis 1982 with Guleria Bauhinia siwalika 1991 with Guleria Bombacites orientalis 1954 Brachystegioxylon premicrophyllum 1970 with Prakash Burseroxylon garugoides Callophyllum cuddalorense 1964 with Awasthi Calophylloxylon indicum 1965 with Awasthi Cassia antiqua Cassia miokachchhensis 1982 with Awasthi Ceriops kachchhensis 1984 with Guleria & Awasthi Cinnamomum eokachchhensis 1981 with Guleria Cinnamomum miokachchhensis 1982 with Guleria Cinnamomum palaeotamala 1984 with Awasthi Cunninghamia chaneyi 1958 Derris champarensis Dicotylophyllum cordatum 1984 with Awasthi Dicotylophyllum panandhroensis 1984 with Awasthi Dicotylophyllum quadrinervatum 1984 with Awasthi Dipterocarpus siwalicus 1981 with Guleria Elaeocarpoxylon mandlaensis 1976 with Bande Euphorioxylon indicum 1981 with Awasthi & Guleria Ficus champarensis 1984 with Awasthi Ficus kachchhensis 1981 with Guleria Ficus khariensis 1982 with Guleria Ficus praecunia 1968 Fissistigma senii 1969 Garcinia borooahii 1963 Grewia archaeocolumnaris Grewia argentioides 1952 Grewia foxii Grewia garoensis Heritieroxylon arunachalensis 1981 with Prakash & Awasthi Ipomoea eriocarpoides Isoberlineoxylon congoense 1970 with Prakash Lagerstroemia patelii 1981 with Gularia Lagerstroemioxylon deomaliensis Laurinoxylon deomaliensis 1981 with Prakash & Awasthi Laurinoxylon namsagensis 1981 with Prakash & Awasthi Leguminocarpon khariensis 1982 with Awasthi Leguminophyllum khariensis 1982 with Awasthi Leguminosites khariensis 1982 with Awasthi Mallotoxylon keriense 1964 with Dayal Mangifera someshwarica 1984 with Awasthi Mesua tertiara 1963 with Bose Mesuoxylon arcotense 1963 with Awasthi Millettia asymmetrica with Guleria Millettia miocenica 1982 with Awasthi Millettioxylon palaeopulchra Mimosaceoxylon lebacqui 1970 with Prakash Monocotylostrobus bracteatus 1982 with Prakash & Bande Murraya khariensis 1982 with Awasthi Neolitsea sahnii Nipa sahnii 1952 Palmacites khariensis 1982 with Guleria Palmoxylon parapaniensis 1979 Palmoxylon surangei 1955 Pandanus eocenicus 1984 with Awasthi Phoebe champarensis 1990 Phyllites grewioides Phyllites obovatus Podocarpoxylon kutchensis 1975 with Guleria & Awasthi Pongamia siwalika Pterocarpus ovatus Pterospermoxylon kutchensis 1980 with Awasthi & Guleria Schleicheroxylon kachchhensis 1981 with Awasthi & Guleria Shorea burmindica Sterculinium deccanensis 1976 with Prakash & Bande Sterculioxylon varmahii Syzygium kachchhense 1981 with Guleria Syzygium palaeobracteatum 190 with Awasthi Terminalia kachchhensis 1984 with Guleria & Awasthi Terminalia panandhroensis 1981 with Guleria Terminalia oregona 1958 Tetrameleoxylon prenudiflora 1966 with Verma Toona siwalica 1990 with Awasthi Trachycarpus ladakhiensis 1983 with Prakash, Thussu & Guleria Urena palaeolobata 1990 with Awasthi Others Species Alisporites phaseolosaccatus 1958 with Sah & Dube Charites siwalikus 1974 with Kapoor & Jain Planisporites parvus 1958 with Sah & Dube Platysaccus crassimarginatus 1958 with Sah & Dube Raskyaechara purniagiriensis 1974 with Kapoor & Jain Platysaccus tenuis 1958 with Sah & Dube Striatites renisaccatus 1958 with Sah & Dube Striatites kumaoensis 1958 with Sah & Dube Striatopodocarpites gondwanensis 1958 with Sah & Dube Succinctisporites ovalis 1958 with Sah & Dube Pityosporites potoniei 1958 with Sah & Dube
Rafael Lucio
Rafael Lucio Najera, Mexican leprologist (Xalapa, Vera Cruz State 02 September 1819 – Ciudad de Mexico 30 May 1886) With I. Alvarado described a form of lepromatous leprosy with diffuse infiltration of skin and without nodules known as diffuse leprosy of Lucio-Alvarado-Latapí or simply Lucio leprosy With I. Alvarado described necrotizing erythema seen in Lucio leprosy known as Lucio phenomenon Performed possibly the first ligature of femoral artery at lower vortex of Scarpa triangledue to direct popliteal artery aneurysm (1843) First to note the relationship between the chorea and heart lesions