Results 41 to 50 of about 1,482 (185)
Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight
Experimental Physiology, EarlyView.Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley +1 more source
Active Galactic Nuclei with High-Resolution X-Ray Spectroscopy
, 2023 Invited review chapter for the book High-Resolution X-Ray Spectroscopy: Instrumentation, Data Analysis, and Science (Eds. C. Bambi and J. Jiang, Springer Singapore, expected in 2023).
Gallo, Luigi C. +2 more
openaire +2 more sources
The ratio of X-ray-to-optical luminosity for active galactic nuclei [PDF]
Monthly Notices of the Royal Astronomical Society, 1984 On montre que le renforcement apparent du rapport moyen des luminosites RX a optique des noyaux de Seyfert 1, en comparaison avec les QSO radio calmes, peut etre largement, sinon totalement, du a un rougissement interne.
CHENG FZ +3 more
openaire +3 more sources
Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.Abstract The Solar, Anomalous, and Magnetospheric Explorer (SAMPEX) mission launched in July 1992 was the first NASA “Small Explorer” project. It had the goal to show how space missions could be developed much more rapidly than had become the situation in the 1980s and 1990s.
D. N. Baker, G. M. Mason
wiley +1 more source
X-ray power law spectra in active galactic nuclei [PDF]
Astronomy and Astrophysics, 2010 6 pages, 1 figure, Astronomy and Astrophysics ...
T. J. L. Courvoisier, W. Ishibashi
openaire +3 more sources
“Lab‐Quakes”: Quantifying the Complete Energy Budget of High‐Pressure Laboratory Failure
AGU Advances, Volume 6, Issue 5, October 2025.Abstract Understanding the interplay of various energy sinks during seismic fault slip is essential for advancing earthquake physics and improving hazard assessment. However, quantifying the energy consumed by major dissipative processes remains a challenge.
Daniel Ortega‐Arroyo +7 more
wiley +1 more source
Earth Wind‐Driven Formation of Hematite on the Lunar Surface
Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.Abstract The recent discovery of hematite (Fe2O3 ${\text{Fe}}_{2}{\mathrm{O}}_{3}$) in lunar high‐latitude regions challenges the notion that the Moon exists in a reduced state. However, the origin of hematite remains unclear. We conducted irradiation experiments using 10 keV O2+ ${\mathrm{O}}_{2}^{+}$ and H2+ ${\mathrm{H}}_{2}^{+}$ ions on Fe‐bearing ...
Xiandi Zeng +7 more
wiley +1 more source
Journal of the American Ceramic Society, Volume 108, Issue 9, September 2025.Deformation mechanism of CeO2 nanocubes and their size dependence of the elastic strain. Abstract The deformation mechanism of CeO2 nanocubes has been studied at room temperature using in situ nanocompression experiments in an environmental transmission electron microscope. Different imaging conditions were used to identify the slip systems.
Rongrong Zhang +4 more
wiley +1 more source
Decoding Pain: Next‐Generation In Vitro Systems for Mechanistic Insights and Drug Discovery
The FASEB Journal, Volume 39, Issue 16, 31 August 2025.Developing an in vitro pain model that mimics essential features of the in vivo pain circuit requires careful consideration of multiple components and choices. These include selecting the cellular population for the model, choosing from the origin of nociceptors and other cells that are cultured, deciding between 3D or 2D dimensions, designing the ...
Dara Khosrowshahi +2 more
wiley +1 more source
Active galactic nuclei with ultrasoft X-ray emission
The Astrophysical Journal Supplement Series, 1992 The discovery of a class of AGN with clearly distinguishable soft X-ray components below 0.5 keV is reported. These AGN were detected through equivalent hydrogen column densities that are less than a few times 10 exp 20/sq cm. At least three kinds of AGN comprise this sample: low-redshift quasars and Seyfert galaxies that have only ultrasoft emission ...
E. M. Puchnarewicz +5 more
openaire +2 more sources