Results 191 to 200 of about 67,335 (316)

A Small Pathbreaking Spacecraft: Giants of Space Research (Bernard Blake, Dieter Hovestadt, and Edward Stone)

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

Formation Channels of Diffuse Lights in Groups and Clusters over Time

The Astrophysical Journal
We explore the formation of the intragroup light and intracluster light, representing diffuse lights within groups and clusters, from the point that z = 1.5.
Kyungwon Chun, Jihye Shin, Jongwan Ko, Rory Smith, Jaewon Yoo   +4 more
doaj   +1 more source

Estimated number of field stars toward Galactic globular clusters and Local Group Galaxies

, 1985
K. U. Ratnatunga, John N. Bahcall
openalex   +1 more source

An Evaluation of Programmed Procedural Fidelity Errors on Data‐Based Decision‐Making During Precision Teaching

Behavioral Interventions, Volume 40, Issue 4, November 2025.
ABSTRACT Research employing parametric analyses of fidelity have demonstrated that some behavior analytic procedures maintain their effectiveness when procedural fidelity is reduced. To date no research has experimentally explored the impact of procedural fidelity errors in Precision Teaching.
Shauna Diffley, Richard M. Kubina Jr., Chris Noone, Aoife Mc Tiernan   +3 more
wiley   +1 more source

Galaxy Cluster Constraints on Extensions of Modified Gravity

The Astrophysical Journal
Modified Newtonian dynamics (MOND) has achieved notable success in explaining galaxy-scale phenomena and has made several unexpected, a priori predictions that align with observations.
E. C. Diggins, D. R. Wik
doaj   +1 more source

Clusters and groups of galaxies as cosmological probes

, 1993
Haruhiko Ueda, Makoto Itoh, Yasushi Suto
openalex   +2 more sources

A Chandra and XMM View of the Mass & Metals in Galaxy Groups and Clusters [PDF]

, 2003
David A. Buote
openalex   +1 more source

Tumor desialylation surpasses anti‐PD‐L1 checkpoint therapy in restoring anti‐tumor immunity in a murine model for colorectal cancer

International Journal of Cancer, Volume 157, Issue 9, Page 1948-1962, 1 November 2025.
What's new? Our research highlights how tumor sialylation affects tumor growth and reshapes the immune tumor microenvironment in colorectal cancer. We demonstrate for the first time that complete removal of sialic acids from colorectal tumor cells elicits a robust anti‐tumor immune response, but does not enhance anti‐PD‐L1 blockade efficacy.
Irene van der Haar Àvila, Tao Zhang, Victor Lorrain, Eelco Keuning, Laraib Amir Ali, Cora Chadick, Sara García‐García, Louis Boon, Noortje de Haan, Juan J. García‐Vallejo, Yvette van Kooyk, Sandra J. van Vliet   +11 more
wiley   +1 more source

Are the Galaxies with Indefinitely Flat Circular Velocities Located Inside Large Dark Matter Haloes?

Universe
A recent study using weak gravitational lensing revealed that the rotation curves of some isolated galaxies are found at a very large distance from their galactic centres. This may provide strong evidence supporting Modified Newtonian Dynamics (MOND) and
Man Ho Chan, Yangzhanhao Zhang, Antonino Del Popolo   +2 more
doaj   +1 more source

Vision Transformer‐Enhanced Multi‐Descriptor Approach for Robust Age‐Invariant Face Recognition

Applied AI Letters, Volume 6, Issue 3, October 2025.
ABSTRACT This study presents a robust age‐invariant face recognition framework, addressing challenges posed by age‐related facial variations. Evaluated on the FGNet and Morph II datasets, the system integrates Viola‐Jones for face detection, SIFT and LBP for feature extraction, and Vision Transformers (ViTs) for global feature representation.
Justice Kwame Appati, Emmanuel Tsifokor, Daniel Kwame Amissah, David Ebo Adjepon‐Yamoah   +3 more
wiley   +1 more source