Origem dos satélites irregulares de Júpiter: captura de asteroides binários primordiais

Pós-graduação em Física - FEG

Efeitos de torques gravitacionais na dinâmica de asteróides múltiplos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estudos de acoplamento spin-órbita em dinâmica do sistema solar

Pós-graduação em Física - FEG

Mobilidade asteroidal induzida por encontros próximos com vários asteroides massivos

Pós-graduação em Física - FEG

Nueva hipótesis para explicar el giro de los planetas al derredor del sol, las figuras oblicudades e irregularidades de sus orbitas, el movimiento de rotación de los mismos plantas y algunos otros fenómenos por J. de Jesús Dabila y Prieto

UANL

Identificación de un antígeno inmunodominante de Nocardia asteroides con potencial diagnóstico

Tesis (Doctorado en Ciencias con Especialidad en Inmunología) UANL

El sistema solar, els cometes, els meteorits i els asteroides, els planetes. 'El sistema solar, los cometas, los meteoritos y los asteroides, los planetas'.

Cuaderno didáctico sobre el sistema solar, los cometas, los meteoritos, los asteroides y los planetas. Forma parte de una carpeta didáctica centrada en temas de astronomía que cuenta también con un planisferio celeste y un poster de la luna.

Dinâmica e origem de asteroides de alta inclinação

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estudo preliminar do potencial de alguns asteroides

A survey we conducted, and bring expressed in this text is a preliminary study on the shape of asteroids and allowed us to understand a little more the dynamics around these bodies, in order that the images we have of asteroids are the most irregular possible. In this work, the asteroid is modeled by the method of the polyhedron, which provides a very good accuracy of the irregular shape of the body. Through study of models for non-spherical gravitational potential bodies, implementation of computational algorithms and numerical simulations a preliminary analysis was performed in relation to the shape of asteroids 4179 Toutatis, 6489 Golevka, 2063 Bacchus, 1620 Geographos and 1998 ML14, as well as regions of stability instability, we compute the coefficients of the gravitational potential. The work not only enables expansion for the case of asteroids, but also for other non-spherical bodies, contributing to the development of targeted studies the origin and evolution of the solar system, and perhaps the origin of the earth, and new technologies for modeling and mapping of non-spherical bodies. The main results were obtained by analyzing the graphics format and planning of asteroids, which confirmed how these bodies are irregular and show how distribution of non-homogeneous mass. Observe the behavior of the curves of zero velocity and equipotential curves as well as their respective surfaces. Also, compute some values of the gravitational potential and the spherical harmonic coefficients of each object. Furthermore, we find possible equilibrium points of asteroids except 4179 Toutatis, and analyze its stability

Poesías, versos de juventud, ritmos, temas, poemas, nuevos ritmos, cantos, escolares, asteroides ultimos temas,

Mode of access: Internet.

Comparative genomics of Bifidobacteria

Chapter 2 of this thesis describes the sequence analysis of 14 bifidobacterial genomes from various species of the genus Bifidobacterium, and the determination of their open pan-genome trend. This analysis first determined the total number of genes to be considered as the reservoir of functions available to representatives of this genus. Many identified genes are still uncharacterized, but may be involved in the adaptation to the gut environment. This comparative genomic analysis also determined a pool of ortholog functions used to infer their phylogenetic relationship, thereby providing a more robust approach compared to that based solely on the16S rRNA-encoding gene. The genome sequence of an isolate from the insect hindgut Bifidobacterium asteroides PRL2011 was fully characterized in Chapter 3, surprisingly revealing a putative respiratory metabolism, which was also found to be present in other insect isolates, suggesting that respiration was an ancient feature of this genus, but also an adaptative trait to different atmosferic oxygen levels. Chapter 4 of this thesis outlines a comparative study which focused on the analysis of representatives of the Bifidobacterium breve species, revealing that the genetic variability among members of this species principally consists of genes with a role in adaptation to host environment and gut colonization. Finally, Chapter 5 describes the analysis of the genome sequence of Bifidobacterium animalis subsp. lactis BLC1, a probiotic bacterium widely used in food industries as an ingredient of functional foods, providing information that will allow future investigations of this species.

Superhéroes y gravedad : el valor pedagógico de la ficción

Resumen tomado de la publicación

Asteroids, comets and meteors.

Describe los orígenes y la composición de los asteroides, cometas y meteoritos, así como su impacto,literal, en la historia de nuestro planeta, y lo que nos dicen sobre el sistema solar, y sobre lo que los científicos aprendieron de los efectos de un cometa en la superficie de Júpiter. Tiene glosario, bibliografía y direcciones internet.

Stars and planets.

Bajo la forma de preguntas y respuestas trata de despertar la curiosidad por la astronomía haciendo hincapié en las características e interrelaciones de las estrellas y planetas en nuestra galaxia. Exploran diversos aspectos de la astronomía, incluyendo el sistema solar, estrellas, planetas, lunas, asteroides y cometas. Recomendado para niños de ocho a doce años.