Results 91 to 100 of about 2,912,496 (265)

Tools for Learning—Promoting Reflection for Student Teachers' Development of PCK

Journal of Research in Science Teaching, Volume 62, Issue 8, Page 1902-1922, October 2025.
ABSTRACT This paper investigates how the coherent integration of three different tools for reflection during a science methods course can contribute to student teachers' planning and enactment of science teaching, that is, their development of pedagogical content knowledge (PCK).
Pernilla Nilsson, Anne‐Marie Cederqvist   +1 more
wiley   +1 more source

Unveiling the Origins and Dynamics of the Hierarchical Triple Star System CN Lyn [PDF]

Astronomical Journal
In this study, we present a detailed analysis of CN Lyn, an overlooked triple star system, by combining spectroscopic data from the literature, photometric Transiting Exoplanet Survey Satellite data, and kinematic techniques.
G. Yücel, V. Bakış, Remziye Canbay, N. Alan, T. Banks, S. Bilir   +5 more
semanticscholar   +1 more source

Survey and Modeling of Windblown Ejecta Deposits on Venus

AGU Advances, Volume 6, Issue 5, October 2025.
Abstract Venus' thick atmosphere rotates in the same direction as the solid body, but ∼60 times faster. This atmospheric superrotation has produced dozens of windblown ejecta deposits (“parabolas”) on the surface of Venus. The formation and modification of parabolas is an interplay between impacts, aeolian modification, and atmospheric dynamics.
T. J. Austin, J. G. O’Rourke, N. Izenberg, E. A. Silber   +3 more
wiley   +1 more source

An investigation of a super-Earth exoplanet with a greenhouse-gas atmosphere using a general circulation model

, 2012
We use the Massachusetts Institute of Technology general circulation model (GCM) dynamical core, in conjunction with a Newtonian relaxation scheme that relaxes to a gray, analytical solution of the radiative transfer equation, to simulate a tidally ...
Madhusudhan, Nikku, Michaels, Timothy I., Zalucha, Angela M.   +2 more
core   +1 more source

Molecular-Kinetic Simulations of Escape from the Ex-planet and Exoplanets: Criterion for Transonic Flow [PDF]

, 2013
The equations of gas dynamics are extensively used to describe atmospheric loss from solar system bodies and exoplanets even though the boundary conditions at infinity are not uniquely defined. Using molecular-kinetic simulations that correctly treat the
Erwin, Justin T., Johnson, Robert E., Volkov, Alexey N.   +2 more
core   +1 more source

Evidence for a Natural Limit to Electron Space Radiation: An Application of Benford's Law

Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.
Abstract Recent research has highlighted observational evidence for a natural limit to the severity of energetic electron differential fluxes in the Van Allen radiation belts. Here, we analyze the occurrence distributions of electron differential fluxes from the entire Van Allen Probes mission (2012–2019) to further investigate the energy dependence of
L. Olifer, I. R. Mann
wiley   +1 more source

On the Measurement of Ocean Acidity With Ambient Sound

Journal of Geophysical Research: Oceans, Volume 130, Issue 10, October 2025.
Abstract The volume‐integrated pH of seawater can be determined from the frequency and depth dependence of wind‐generated ambient noise in the ocean. Over the 1–10 kHz frequency band, three main processes contribute to the acoustic attenuation in seawater: the chemical relaxation of boric acid and magnesium carbonate (<3 kHz, related to pH) and of ...
Ernst M. Uzhansky, David R. Barclay, Michael J. Buckingham   +2 more
wiley   +1 more source

The MgI line: a new probe of the atmospheres of evaporating exoplanets

, 2014
Transit observations of HD209458b in the UV revealed signatures of neutral magnesium escaping the planet's upper atmosphere. The absorption detected in the MgI line provides unprecedented information on the physical conditions at the altitude where the ...
Bourrier, V., Etangs, A. Lecavelier des, Vidal-Madjar, A.   +2 more
core   +2 more sources

ATMOSPHERIX: III. Estimating the C/O ratio and molecular dynamics at the limbs of WASP-76 b with SPIRou [PDF]

Astronomy & Astrophysics
Measuring the abundances of C- and O-bearing species in exoplanet atmospheres enables us to constrain the C/O ratio, which contains indications about the planet formation history.
T. Hood, F. Debras, C. Moutou, Baptiste Klein, P. Tremblin, V. Parmentier, Andrés Carmona, A. Meech, Olivia V'enot, A. Masson, Pascal Petit, Sandrine Vinatier, E. Martioli, Flavien Kiefer, M. Turbet, the Atmospherix consortium   +15 more
semanticscholar   +1 more source

Ancient Mars Climate With a Polar Ocean and Ice Sheet Dynamics

Journal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract In this article, we study the conditions required to maintain a stable ocean on Mars 3 Ga using a new suite of simulations. These simulations couple a 3D Global Climate Model with ocean dynamics and ice sheet flow. The model includes the main processes of the atmosphere/hydrosphere/cryosphere to investigate Mars' ancient climate.
Frédéric Schmidt, Michael J. Way, Aurélien Quiquet, Igor Aleinov, Christophe Dumas   +4 more
wiley   +1 more source