Results 41 to 50 of about 86,432 (192)

Tra lingua dell’astronomia e lingua comune

open access: yesCuadernos de Filología Italiana, 2015
Il presente articolo analizza fenomeni di passaggio dal settoriale al comune e viceversa nell’ambito dell’astronomia. Lo studio permette di rintracciare suggestive forme di dialogo e non cesure tra passato e presente, tra tecnico e comune, un dialogo ...
Paola Capponi
doaj   +1 more source

Suprathermal Soliton Solutions to Nonlinear Schrödinger Equation

open access: yesContributions to Plasma Physics, Volume 66, Issue 3, March 2026.
ABSTRACT Maxwell distributions are very difficult to find in the low‐pressure environment far away the Earth atmosphere, permeated by high temperatures, various types of radiation, highly energetic particles, space debris, and subjected to microgravity, presenting crucial challenges for spacecraft design and operations, and affecting astronaut's health.
F. E. M. Silveira   +2 more
wiley   +1 more source

Análise da Implementação da BNCC no Ensino de Astronomia: Desafios e Oportunidades

open access: yesCadernos Cajuína
A implementação da Base Nacional Comum Curricular (BNCC) trouxe para os anos iniciais os conteúdos de Astronomia que anteriormente, no currículo oficial, pertenciam apenas ao Ensino Fundamental II.
Roberta Chiesa Bartelmebs   +2 more
doaj   +1 more source

Superstitiones e signa nell’immaginario Lunare altomedievale

open access: yesAnuario de Estudios Medievales, 2017
[Ita] Questo articolo si propone di chiarire come gli scrittori cristiani in epoca altomedievale abbiano cercato di sradicare i culti idolatrici legati alla luna.
Emanuele Piazza
doaj   +1 more source

A new method to find the potential center of N-body systems [PDF]

open access: yes, 2002
We present a new and fast method to nd the potential center of an N-body distribution. The method uses an iterative algorithm which exploits the fact that the gradient of the potential is null at its center: it uses a smoothing radius to avoid getting
Aguilar, L. A.   +2 more
core   +1 more source

A photometric study of the young open cluster NGC 1220 [PDF]

open access: yes, 2002
We present UBV CCD observations obtained in the field of the northern open cluster NGC 1220, for which little information is available. We provide also BV CCD photometry of a field 5$^{\prime}$ northward of NGC 1220 to take into account field star ...
B. Barbuy   +15 more
core   +2 more sources

Verification of Calibrated Multimodel Subseasonal Precipitation Predictions Cascaded From Global to Regional Scale Over Ceará State in Brazil

open access: yesMeteorological Applications, Volume 33, Issue 2, March/April 2026.
This study assesses prediction quality of regionally refined (downscaled) calibrated multimodel predictions for Ceará State in Brazil. Downscaled predictions maintained similar performance levels to those obtained at the coarser spatial resolution of the used global models, reassuring the adequacy of the cascading procedure used to generate predictions
Caio A. S. Coelho   +4 more
wiley   +1 more source

Archeointensity Database and Geomagnetic Field Reference Curves for South America Over the Past 5 Millennia

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract The study of variations in geomagnetic field intensity over time and space is crucial to understand the evolution of the geodynamo and its interactions with the Earth's surface. In this work, we introduce the SAGEOMAG (South America GEOMAGnetic) database, a comprehensive and updated repository of geomagnetic field intensity records derived ...
Victor J. O. Marum   +6 more
wiley   +1 more source

Divulgação e ensino do patrimônio arqueoastronômico brasileiro

open access: yesRevista Brasileira de História da Ciência, 2017
O livro paradidático Olhai pro céu, olhai pro chão, foi escrito com o objetivo de introduzir a arqueoastronomia de forma resumida e lúdica, apresentando o trabalho de astrônomos e arqueólogos em suas respectivas áreas de trabalho.
Cíntia Jalles   +2 more
doaj   +1 more source

Density Modulations of Zero Sound

open access: yesAnnalen der Physik, Volume 538, Issue 2, February 2026.
Zero sound is a collective mode of the strongly interacting quantum gas that propagates when atomic collisions are negligible, similarly to a plasmon. This work aims at investigating the conditions under which a density modulation associated to this collective mode travels coherently through a strongly interacting Fermi gas.
Leonardo Pisani
wiley   +1 more source

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