Marco Antonio Serna

Marco Antonio Serna Díaz, Colombian herpetologist and ornithologist (San Vicente Ferrer, Antioquia 11 July 1936 – Ayapel, Córdoba Dept. 31 December 1991) DESCRIBED VALID SPECIES Amphibia (with Rivero) Atelopus galactogaster 1993 Atelopus sanjosei 1989 Colostethus brachistriatus 1986 Colostethus dysprosium 2000 Colostethus furviventris 1991 Colostethus yaguara 1991 Hyloxalus betancuri 1991 Hyloxalus borjai 2000 Hyloxalus breviquartus 1986 Hyloxalus excisus 2000 Pristimantis dorsopictus 1988 Pristimantis johannesdei 1988 Pristimantis phragmipleuron 1988 Pseudopaludicola ceratophyes 1985 Rheobates pseudopalmatus 2000 Silverstoneia erasmios 2000 Reptilia  Lepidoblepharis williamsi 1986 with Ayala  

Marcelo Damy de Souza Santos

Marcelo Damy de Souza Santos, Brazilian physicist (Campinas, São Paulo State 14 July 1914 –São Paulo 29 November 2009) Authored more than 80 works Discovered penetrating showers in cosmic rays with Wataghin and Pompéia With G. Wataghin & P.A Pompéia.  Simultaneous penetrating particles in the cosmic radiation I. Physical Review 57:61, 1940. With G. Wataghin & P.A. Pompéia. Simultaneous penetrating particles in the cosmic radiation. II. Physical review 57:339, 1940.  With G. Wataghin, M. Schenberg & G. Occhialini first observed the phenomenon of mesons production in groups simultaneously emitted in an one nuclear process (1941) DEVICES/METHODS With G. Wataghin. Sopra um nuovo tipo di contatore di corpusculi. Il Nuovo Cimento 15:104-7, 1937.  A multivibrator counter circuit. Anais Acad. Bras. Ciencias 12:179-89, 1940.   With G. Occhialini. On a method of recording random events. Anais Acad. Bras. Ciencias 13:57-62, 1941. With G. Occhialini. Two useful gadgets for controlled Wilson chambers (1941) Developed with  Pompéia a new kind of ultrasonic sonar for detecting submarines employing pre-oriented ferromagnetic crystals   With Pompéia developed a special thermostat that works on the gasoline dilation for controlling the temperature of cooling crystals With Pompéia developed portable radios for jeeps and military trucks With P.S. de Toledo, R. Brenner & A.C. Penteado. A new method for the individual detection of failed fuel elements in swimming pool reactors (1960). With E. Wilner & P.S. Toledo. Um novo método de detecção individual de elementos combinados defeituosos. Third Interam. Symposium Nuclear Energy Peaceful Appl. (1960)  A device for tuning musical instruments Improved the velocity of Geiger counter from miliseconds to microseconds With P.S. Toledo. A power calibration method using the xenon equilibrium poisoning (1958) His brother, Tharcisio Egidio Damy de Souza Santos, metallurgist (Campinas, São Paulo State 10 December 1912 – São Paulo 29 July 2005) Authored 138 works (until 1983) Presented novel abacus that improved Berek compensator A determinação dos retardamentos na técnica petrográfica. Rev. Politecnica (1938) AUTHORED Um processo de zincagem do chumbo desargentado Parkes  (A Process of galvanization of Parkes desilvered lead) 1954 Um processo para tratamento de crostas Parkes (A process for treatment of Parkes crusts) 1957 PATENTS PI8403174-3B1 (1984) Processo para obtenção de cobre metálico utilizando minérios alterados complexos de baixo teor (Process for obtaining metallic copper employing low content complex changed ores) 1988

Manuel Soriano

Manuel Saturnino Soriano Escobedo, Mexican surgeon (Ciudad de Mexico 1837 – Ciudad de Mexico February 1927) Proposed a series of maneuvers INVENTED Double scarifier for child gingiva (1865) Trocar for surgical canalization Triangle knife for ingrown toenail An abdominal suture needle

Manuel Sandoval Vallarta

Manuel Sandoval Vallarta, Mexican physicist (Ciudad de Mexico 11 February 1899 – Ciudad de Mexico 18 April 1977) Regarded as world authority on cosmic rays   Authored about 70 works Determinated coincidence conditions for classical and ondulatory mechanics results (1927) With N. Rosen introduced past and future asymmetry in a field theory   Obtained evidence that cosmic radiation presented electrical charge and determined its sign With G. Lemaitre demonstrated that if particles flow distribution of cosmic radiation is isotropic magnetic field outside, the intensity of cosmic radiation that reaches a point on Earth surface is the same in all permitted directions for each given energy and that in any solid angle that contains only permitted directions, the intensity will be the same which in an identical solid angle With Lemaitre predicted East-West asymmetry of cosmic radiation intensity to low geomagnetic altitudes (W.L. Alvarez confirmed it in 1933) Explained the longitude effect on cosmic rays HONOURS  Physics Nobel Prize nominee Invited Lecturer, International Congress of Mathematicians (1936)

Mandakolathor Subrahmanya Srinivasan

Mandakolathor Subrahmanya Srinivasan, Indian micropaleontologist and biostratigrapher (Attilmalaipattu, Tamil Nadu 09 October 1938 – DESCRIBED FOSSIL FORAMINIFERA TAXA  Valid Genera Neuropleurostomella 1992 with Rai Vellaena 1966 Virguloides 1966 Wadella 1966 Species Alabamina archipelagoensis 1981 with Rajshekhar Biloculinella elongata 1973 with Sharma Bolivinita delicata 1973 with Sharma Bolivinita neocompressa 1973 with Sharma Ceratolamarckina clarki 1966 Cibicides bengalensis 1972 with Sharma  Cibicides helferi 1981 with Rajshekhar Cibicides hochstetteri 1980 with Singh Cibicides pronovozelandicus 1966 Clavatorella nicobarensis 1974 with Kennett Discorbis rajnathi 1966 Ehrenbergina schwageri 1980 with Singh Elphidium hornibrooki 1966 Favocassidulina indica 1990 with Gupta Flabellammina pliocenica 1981 with Rajshekhar Fursenkoina indica 1980 with Singh Glabratella finlayi 1966 Globoquadrina indica 1972 with Sharma Globorotalia banneri 1972 with Sharma Globorotalia nicobarica 1969 Globorotalia spiroapertura 1972 Globorotalia challengeri 1981 with Kennett Globorotalia neoflexuosa 1974 with Kennett & Be Gyroidina jenkinsi 1966 Karreriella kennetti 1966 Karreriella obscura 1966 Lenticulina barretti 1966 Lenticulina paparoaensis 1966 Melonis pacimaoricum 1966 Milionella vellai 1966 Neuropleurostomella indica 1992 with Rai Pararotalia geei 1980 with Singh Pijpersia gracilis 1966 Praeglobulina sastryi 1981 with Rajshekhar Quinqueloculina zealandica 1966 Rectuvigerina oldhami 1981 with Rajshekhar Robulus kakanus 1973 with Sharma Saracenaria colei 1966 Stilostomella stachei 1966 Tappanina indopacifica 1973 with Sharma Tenuitella andamanica 1978 with Azmi Textularia walcotti 1966 Trifarina edwardsi 1966 Trifarina kaiata 1966 Triloculinella elizabethae 1966 Uvigerina bradleyi 1966 Vellaena zealandica 1966 Virguloides wellmani 1966

Mahmoud Salah

Mahmoud Salah el-Din, Egyptian physician and surgeon (06 June 1902 – 1978) Developed Salah sternal puncture needle (1937) SOME BIBLIOGRAPHY  With M. Khalil, M. Nazmi, F.M. Peter & M.H. Betash. Die behandlung der schistosomiasis mit intramuskularen “fuadin injectionen”. Deutsche Medizinische Wochenschrift 55:1125-6, 1929  With M. Khalil. The microscopical diagnosis of intestinal schistosomiasis. Trans. Roy. Soc. Trop. Med. Hyg. 23:519, 1930 Sternal puncture: preliminary note. J. Egyp. Med. Assoc. 17:8-16, 1931 The nature of pulmonary lesions in malaria. Arch. Schiffs. u. Tropenhyg. 36:260, 1932 The parasitic entity of Aegyptianella pullorum (Carpano, 1928). Arch. Schiffs. u. Tropenhyg. 36:400-7, 1932 Demonstration of the hemopoietic principle. Trans. Roy. Soc. Trop. Med. Hyg. 29:299, 1935 Vitamin A deficiency in jaundice. J. Egyp. Med. Assoc. 23:153, 1940 Ankylostomiasis. Clinical and haematological aspects. Alexandria Med. J., 1959  The bilharzial liver. Alexandria Medic. J. 8:177-94, 1962 With H. Foda & H. Badawi. Circulatory hemodynamics before and after portocaval shunt operation in bilharzial hepatic fibrosis. Am. Heart J. 67(3):295-303, 1964 With A. Hassan. Investigations on the oil of Chenopodium and its anthelminthic action. J. Egyp. Med. Assoc.