Results 21 to 30 of about 1,909 (161)
The SKA as a Prebiotic Molecule Detector [PDF]
, 2022 [EN] One of the theories for the origin of life proposes that a significant fraction of prebiotic material could have arrived to Earth from outer space between 4.1 and 3.8 billion years ago.
Cocinero, Emilio J. +9 more
core +1 more source
O Ensino da Astrobiologia como Alternativa Interdisciplinar Baseada no Uso de TDICs
Revista de Iniciação à Docência, 2023 O presente artigo descreve o desenvolvimento e aplicação de um projeto de Iniciação Científica Júnior chamado “Astrobiologia: um universo de possibilidades”, o qual aborda, de maneira interdisciplinar, conteúdos referentes à Astrobiologia para turmas de
Luiz Gustavo Lima Cordeiro +3 more
doaj
Ionize Hard: Interstellar PO+ Detection
Frontiers in Astronomy and Space Sciences, 2022 We report the first detection of the phosphorus monoxide ion (PO+) in the interstellar medium. Our unbiased and very sensitive spectral survey toward the G+0.693–0.027 molecular cloud covers four different rotational transitions of this molecule, two of ...
Víctor M. Rivilla +17 more
doaj +1 more source
Nucleation of Fe-rich phosphates and carbonates on microbial cells and exopolymeric substances
Frontiers in Microbiology, 2015 Although phosphate and carbonate are important constituents in ancient and modern environments, it is not yet clear their biogeochemical relationships and their mechanisms of formation.
Monica eSánchez-Román +4 more
doaj +1 more source
Cadernos CajuínaA crescente necessidade de promover a alfabetização científica e o interesse por Ciência na educação básica tem impulsionado o desenvolvimento de abordagens pedagógicas inovadoras e interdisciplinares.
Vinicius Marx Silva Delgado +6 more
doaj +1 more source
Frontiers in Microbiology, 2021 Nunataks are permanent ice-free rocky peaks that project above ice caps in polar regions, thus being exposed to extreme climatic conditions throughout the year.
Miguel Ángel Fernández-Martínez +14 more
doaj +1 more source
Frontiers in Microbiology, 2022 The old debate of nature (genes) vs. nurture (environmental variables) is once again topical concerning the effect of climate change on environmental microorganisms.
Laura García-Descalzo +2 more
doaj +1 more source
Unusual occurrence of Cochlichnus in aeolian sandstones: evidence for a stiletto fly larval origin
Papers in Palaeontology, Volume 12, Issue 3, May/June 2026.Abstract Cochlichnus anguineus is an ichnotaxon recognized for its distinctive regular wavy morphology. It is a characteristic trace fossil typically associated with aquatic and marginal aquatic environments. However, in this study we examine its unusual occurrence in the aeolian sandstones of the Botucatu Formation (Lower Cretaceous, Paraná Basin ...
Bernardo de C. P. e M. Peixoto +8 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.Abstract Turbulent winds are a regular occurrence in planetary boundary layers. Turbulence affects mixing, energy fluxes and forcing on the surface environment. Energy injected into an atmosphere generates eddies of many scales down to a size where molecular viscous forces dominate, termed the Kolmogorov length scale.
Alexander E. Stott +13 more
wiley +1 more source
Advanced Materials Interfaces, Volume 13, Issue 4, 17 February 2026.Very small cellular compartments can break electroneutrality and harness proton gradients without active transport structures, whereas larger volumes cannot, underscoring why life's critical energy processes are confined in microscopic spaces. ABSTRACT The effect of pH changes in external ionic solutions on liposomes entrapping non‐permeable weak acid ...
Josep M. Ribó +4 more
wiley +1 more source