Results 31 to 40 of about 22,005 (166)
A new approach to generate a catalogue of potential historical novae
Astronomische Nachrichten, Volume 341, Issue 1, Page 79-98, January 2020., 2020 Abstract Ancient Chinese, Korean, and Vietnamese observers left us records of celestial sightings, the so‐called “guest stars” dated up to ∼2500 years ago. Their identification with modern observable targets could open interesting insights into the long‐term behavior of astronomical objects, as shown by the successful identification of eight galactic ...
Susanne M. Hoffmann +2 more
wiley +1 more source
The Shortest Known Period Star Orbiting our Galaxy's Supermassive Black Hole [PDF]
, 2012 Stars with short orbital periods at the center of our galaxy offer a powerful and unique probe of a supermassive black hole. Over the past 17 years, the W. M.
Becklin, E. E. +9 more
core +3 more sources
Astronomia cultural: um olhar decolonial sobre e sob os céus do Brasil
Revista Scientiarum Historia, 2019 Este trabalho traz uma reflexão sobre o estudo da Astronomia nas Culturas como uma forma de contribuição a um pensar decolonial sobre as formas de observar e interpretar o céu e os fenômenos astronômicos. Com o intuito de valorizar e dar visibilidade às epistemologias do Sul e como forma de contrariar a lógica dominante da episteme eurocêntrica ...
Flavia Pedroza Lima +1 more
openaire +2 more sources
XYZ-Stars i Solar System Pathway : una experiència museística de treball per projectes sobre les constel·lacions i el Sistema Solar [PDF]
, 2016 L'alumnat de secundària sol presentar concepcions errònies relatives a les dimensions i proporcions de l'Univers i els cossos celests. Les metodologies actives (com el treball per projectes) suposen una oportunitat per a ubicar aquestes concepcions en el
Arrizabalaga, Antoni +6 more
core +2 more sources
Anais do Museu Paulista: História e Cultura Material, 2005 O Mast é um museu de ciência e tecnologia situado no conjunto arquitetônico e paisagístico que pertenceu ao antigo Observatório Nacional (ON), na cidade do Rio de Janeiro.
Marcus Granato +2 more
doaj +1 more source
Centrality Measures in Spatial Networks of Urban Streets
, 2005 We study centrality in urban street patterns of different world cities represented as networks in geographical space. The results indicate that a spatial analysis based on a set of four centrality indices allows an extended visualization and ...
A. Bavelas +9 more
core +2 more sources
Dynamical organization towards consensus in the Axelrod model on complex networks
, 2010 We analyze the dynamics toward cultural consensus in the Axelrod model on scale-free networks. By looking at the microscopic dynamics of the model, we are able to show how culture traits spread across different cultural features. We compare the diffusion
Beniamino Guerra +6 more
core +1 more source
Astronomia Cultural: como povos diferentes olham o Céu
e-Boletim da Física, 2016 O presente trabalho traz uma discuss˜ao sobre a astronomia cultural. O estudo contempla a explica¸c˜ao dos fenˆomenos celestes por diferentes grupos sociais ao longo dos tempos e dos espa¸co do nosso planeta.
openaire +4 more sources
Quasi‐Constant Time Gap in Multiple Rings of Elves
Earth and Space Science, Volume 12, Issue 10, October 2025.Abstract We present evidence that the time delay between the multiple rings of elves is not caused by the ground reflection of the electromagnetic pulse produced by intracloud lightning. To investigate temporal differences of multi‐elves, we analyzed data from four storms occurring at various times and distances from the Pierre Auger Observatory in ...
The Pierre Auger Collaboration
wiley +1 more source
HemaSphere, Volume 3, Issue S1, Page 419-420, June 2019., 2019 Background: The adult “triple negative” [Ph‐/‐/‐; neg for t(9;22); t(1;19); t(4;11); 61% of adult B‐ALL (Roberts KG et al., J Clin Oncol. 2017)] B‐ALL group is characterized by an high genetic heterogeneity, lack of innovative target therapies and poor survival.
A. Ferrari +22 more
wiley +1 more source