1. Obtencion de la curva luminosa de los cometas C/2002T7 linear, C/2001Q4 neat y espectrometria del C/2001Q4 neat - Córdoba, Carlos; Quijano Vodniza, Alberto; Quijano Vodniza, José; Rojas Pereira, Mario; López, James P.
En el presente trabajo mediante fotometría se obtuvo las curva de los cometas C/2002 T7 LINEAR y C/2001 Q4 NEAT y con base a ellas los respectivos índices cometarios y magnitudes absolutas para los astros citados. Para el primer cometa (cuando se acercaba al sol) el índice se calculó en 4 y su magnitud absoluta en 4.3. Para el segundo cometa, el índice se estimó en 8.4 y su magnitud absoluta en 6.2. Fue difícil predecir los parámetros correspondientes al cometa NEAT porque sólo se contó con 11 días entre la primera observación y el máximo acercamiento a la Tierra....

2. Apologeticas respuestas escritas por el abad don Iuan Brabo de Sobre-Monte, contra dos discursos que han impugnado su Piedra de toque sobre los pareceres de el cometa, uno con nombre de Don Andres Davila y Heredia ... y otro con titulo de El Soldado ... - Bravo de Sobremonte, Juan; Bravo de Sobremonte, Juan. Piedra de toque; Macé, Benito, Viuda de, imp.; Bravo de Sobremonte, Juan; Bravo de Sobremonte, Juan
"Piedra de toque : en que se descubren los quilates de los pareceres sobre el cometa que se ha visto el mes de diziembre passado de 1680... / por el abad don Iuan Brabo de Sobre-monte", con port. propia. Texto fechado en Madrid, 1681: 7 h. últimas

3. Comet Kohoutek : a workshop held at Marshall Space Flight Center, Huntsville, Alabama, June 13-14, 1974 : [papers] / edited by Gilmer Allen Gary. - Comet Kohoutek Workshop
x, 272 p. :

4. Pickup `bunching At Comet
the encounter with comet the ion mass spectrometer high intensity spectrometer measured fluxes of ions from about 260,000 before to 86,000 km closest approach to the Cometary pickup protons were measured both and also relatively near the comet. Because the encounter geometry and look ion, measurements were made in a very narrow range pitch angles 90. Strong modulation in the detector' was correlated modulation in solar wind flow velocity and magnetic field direction (corresponding to the water pickup ion cyclotron frequency) during the encounter. correlation indicates that the pitch distribution for the pickup protons was very narrow, Furthermore, time variations within this modulation indicate also the proton distribution was These...

5. Fin del Mundo ó El cometa de 1857 : resúmen

6. Catálogo de observación fotométricas de cometas periódicos / Edgar Guzmán - Guzmán, Edgar; Universidad de Los Andes. Facultad de Ciencias, Departamento de Física, Tesis, 1979
Mecanografiado

7. Tratado de la naturaleza, origen y causas de los cometas ... [Texto impreso] - Cassani, José; Fernández, Manuel (ca. 1717-1772) imp.
Sign.: ¶⁸, A-Q⁸

8. Juicio y pronóstico del nuevo cometa que aparece sobre nuestro horizonte... [Texto impreso] - J. M. F.; Quintana, Manuel Santiago de imp.
El autor figura al final del texto

9. Modelo físico de la producción de agua de un cometa / Carla Secco Track - Secco Track, Carla; Universidad de Los Andes. Facultad de Ciencias, Postgrado de Física Fundamental, Tesis, 1999
Mecanografiado

10. Fotografías del cometa Kahaoutek tomadas la noche del 13 de enero de 1974
1 fot.: bl. y n; 20 x 25 cm = 8 x 10 inch + texto del reverso

11. Mutagenic effects of tributyltin and inorganic lead (Pb II) on the fish H. malabaricus as evaluated using the comet assay and the piscine micronucleus and chromosome aberration tests - Ferraro,Marcos Vinícius M.; Fenocchio,Alberto Sérgio; Mantovani,Mario Sérgio; Ribeiro,Ciro de Oliveira; Cestari,Marta Margarete
Genotoxicity studies on toxic metals and their organic compounds are very important, especially so in the investigation of the effects of these compounds on the aquatic environments where they tend to accumulate. The use of endemic aquatic organisms as biological sentinels has proved useful to environmental monitoring. We assessed the mutagenic potential of tributyltin (TBT) and inorganic lead (PbII) using samples of the fish Hoplias malabaricus (commonly called traíra) using the comet assay and the piscine micronucleus and chromosome aberration tests. Eighteen H. malabaricus were acclimatized in three individual aquariums, each containing six fish, six fish being exposed to 0.3...

12. Descripción gráfica del cometa de segunda magnitud [Texto impreso] : [aparecido en Sevilla el 8 de septiembre de 1825] - Gomez, J
Sign.: [ ]¹

13. Consideraciones sobre los cometas, y noticia del que se ha presentado en setiembre del presente año, y que se está observando todavía en este mes de octubre [Texto impreso] - Valle y Codes, Juan; Villalpando, Fermín imp.
Sign.: [1]-4⁸,

14. Aviso al público [Texto impreso] : o sea breve idea de los cometas, aplicada a manifestar lo que hay que temer del que a mediados de 1857 ha de dar fin del mundo, según la opinión de los astrónomos alemanes - Verdejo Páez, Francisco

15. Dialogo curioso, en que difine [sic] el cometa o phenomeno caudato, aparecido en Madrid, el día 24 de enero de este año de 1744 [Texto impreso] : su duraeion [sic], tamaño, y astrologicas influencias, con una chronologia de los sucessos, que han acaecido las veces, que se han visto otros semejantes, con otras curiosidades - Horta y Aguilera, Francisco de; Palacios, José (s. XVIII)
Sign.: A⁴

16. Aplicação do método microbiológico DEFT/APC e do Teste do Cometa na detecção do tratamento com radiação ionizante de hortaliças minimamente processadas - Michel Mozeika Araújo
O comércio de vegetais minimamente processados (VMP) tem crescido substancialmente nos últimos anos devido a sua conveniência, frescor e aparente salubridade. No entanto, o processamento mínimo não reduz as populações de microrganismos patogênicos para níveis seguros. A irradiação de alimentos é utilizada para estender a vida de prateleira e inativar patógenos presentes nos alimentos. Seu uso combinado com o processamento mínimo poderia aumentar a segurança e qualidade dos VMP. Dois diferentes métodos de detecção de alimentos irradiados, um biológico, o DEFT/APC, e outro bioquímico, o teste do cometa, foram aplicados a VMP com o objetivo de testar sua aplicabilidade na...

17. Halleys comet. - Barton, Samuel Goodwin.
1 p.l., 5023 p.

18. Comet Shoemaker-Levy 1991 a1 - Comet Shoemaker-levy A; J.D. Shanklin
Introduction Comet Shoemaker Levy 1991 a 1 , later designated comet 1992 XIX was discovered by the Shoemaker-Levy team with the Palomar Schmidt on 1991 October 6.50 at photographic magnitude 16.5 1 . The first visual observations were not made until 1992 May when the comet emerged from solar conjunction. It moved to high northern declination, reaching 78N at the end of June, before rapidly moving south. The brightness peaked at 7.8 in late July just before it reached perihelion. The last observations were made in early August after which it was too close to the sun for further observation....

19. COMET: A Hardware-Software Codesign Methodology - Michael J. Knieser,Christos A. Papachristou
COMET is a system-level C and VHDL hardware/software codesign methodology. This process is made possible through the use of a rules file which adds timing and area constraints to the C and VHDL descriptions that the languages do not support. The methodology of COMET is functional and has been tested. A neural network program has been implemented to perform automated hardware/software partitioning.

20. Comet Shoemaker-Levy 1991 a1 - J D Shanklin
Introduction Comet Shoemaker Levy 1991 a 1 , later designated comet 1992 XIX was discovered by the Shoemaker-Levy team with the Palomar Schmidt on 1991 October 6.50 at photographic magnitude 16.5 1 . The first visual observations were not made until 1992 May when the comet emerged from solar conjunction. It moved to high northern declination, reaching 78N at the end of June, before rapidly moving south. The brightness peaked at 7.8 in late July just before it reached perihelion. The last observations were made in early August after which it was too close to the sun for further observation. A photograph by Martin Mobberley appeared in the Journal 2 . Table 1. Orbital elements for Comet Shoemaker Levy 1992...

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