ANÁLISE DA ATIVIDADE NUCLEAR DE DEZ GALÁXIAS COM ANEL POLAR
Revista UniVap, 2013 O acúmulo de massa, proveniente do processo de interação que forma as galáxias com anel polar, é um fator que favorece as condições necessárias para disparar atividades nucleares não térmicas. Esse fato fomentou a análise química de dez galáxias com anel
Priscila Freitas-Lemes +3 more
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Como se formaram as galáxias? [PDF]
Revista Brasileira de Ensino de Física, 2023 Apresentamos aqui uma discussão pedagógica do processo de formação de estruturas (galáxias e além) no Universo, com um mínimo de formalismo e ênfase nas ideias físicas que colocam a instabilidade gravitacional como o principal agente do mesmo.
J.E. Horvath
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Contrasting evolutionary responses in two co-distributed species of Galaxias (Pisces, Galaxiidae) in a river from the glaciated range in Southern Chile. [PDF]
R Soc Open Sci, 2020 Life-history traits are among the most important factors affecting population abundance and genetic diversity of species. Here, we analysed the genetic patterns of two Galaxias species with different life-history traits to investigate how these ...
Victoriano PF +7 more
europepmc +2 more sources
Revista UniVap, 2023 As galáxias espirais normais possuem um núcleo, disco, bojo, halo e braços espirais. Esses sistemas despertam muita curiosidade, atração e questionamentos científicos e consequentemente, muitos estudos e técnicas são propostas para análise destas ...
Stella Faria Costa +2 more
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Migratory jackpot individuals fuel rapid ecotype shifts in Galaxias fishes. [PDF]
Nat CommunAdaptation is considered essential for species facing environmental change, but our understanding of the evolution of complex ecotypes remains limited. We show that a substantial genomic cluster of co-adapted alleles has repeatedly fuelled complex life ...
Iwikau A +12 more
europepmc +2 more sources
Complexidade em Astronomia e Astrofísica [PDF]
Revista Brasileira de Ensino de Física, 2021 A Astronomia e a Astrofísica, em sinergia à Física e à Cosmologia Moderna e Contemporânea, têm como principal objetivo entender, por meio de métodos matemáticos, computacionais e observacionais, os processos (astro)físicos fundamentais relacionados à ...
Alan Alves-Brito, A. Cortesi
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Contrasting Patterns of Genetic Diversity and Divergence Between Landlocked and Migratory Populations of Fish Galaxias maculatus, Evaluated Through Mitochondrial DNA Sequencing and Nuclear DNA Microsatellites. [PDF]
Front Genet, 2022 Galaxias species are interesting biogeographic models due to their distribution and different types of life cycles, with migratory and landlocked populations.
Astorga MP +5 more
europepmc +2 more sources
Morphological Convergence and Divergence in Galaxias Fishes in Lentic and Lotic Habitats
Diversity, 2020 The influence of contrasting lentic and lotic hydrological environments on the morphology of members of the Galaxias vulgaris species complex was examined.
Nicholas R. Dunn +3 more
doaj +1 more source
Cryptic diversity within two widespread diadromous freshwater fishes (Teleostei: Galaxiidae). [PDF]
Ecol EvolIdentification of taxonomically cryptic species is essential for the effective conservation of biodiversity. Freshwater‐limited organisms tend to be genetically isolated by drainage boundaries, and thus may be expected to show substantial cryptic ...
Jense C +8 more
europepmc +2 more sources
Effects of the cranial parasite Tylodelphys sp. on the behavior and physiology of puye Galaxias maculatus (Jenyns, 1842). [PDF]
PeerJ, 2021 Diplostomatid digeneans are well-known manipulators of the behavior of their intermediate hosts. Unencysted metacercariae of Tylodelphys sp. inhabit the cranial cavity of the fish Galaxias maculatus; however, to date they have not been documented to ...
López-Rodríguez R +2 more
europepmc +3 more sources