Results 161 to 170 of about 2,699,041 (235)

Exploiting Machine Learning and Disequilibrium in Galaxy Clusters to Obtain a Mass Profile

The Astrophysical Journal Letters
We use 3D k -means clustering to characterize galaxy substructure in the A2146 cluster of galaxies ( z = 0.2343). This method objectively characterizes the cluster’s substructure using projected position and velocity data for 67 galaxies within a 2.305 ...
Mark J. Henriksen, Prajwal Panda
doaj   +1 more source

Deficiency of the Synaptic Adhesion Protein Leucine‐Rich Repeat Transmembrane Protein 4 Like 1 Affects Anxiety and Aggression in Zebrafish

Acta Physiologica, Volume 241, Issue 5, May 2025.
ABSTRACT Aim Leucine‐rich repeat transmembrane proteins (LRRTMs) are synaptic adhesion proteins that regulate synapse development and function. They interact transsynaptically with presynaptic binding partners to promote presynaptic differentiation. Polymorphisms of LRRTM4, one of the four members of this protein family, have been linked to multiple ...
Eva Tatzl, Giulia Petracco, Isabella Faimann, Marco Balasso, Agnes Anna Mooslechner, Thomas Bärnthaler, Giovanny Rodriguez‐Blanco, Florian Reichmann   +7 more
wiley   +1 more source

Circadian clock disruption promotes retinal photoreceptor degeneration

The FASEB Journal, Volume 39, Issue 7, 15 April 2025.
Mice carrying a knock‐in of the P23H mutation of the rhodopsin gene are a well‐characterized model of retinitis pigmentosa (RP), a hereditary retinal degeneration affecting primarily rods. Here, by combining the P23H Rho mutation with the rod‐specific invalidation of the Bmal1 clock gene and by performing functional, structural, and molecular analyses,
Shumet T. Gegnaw, Cristina Sandu, Amandine Bery, Jacoline B. ten Brink, Nemanja Milićević, Aldo Jongejan, Perry D. Moerland, Arthur A. Bergen, Marie‐Paule Felder‐Schmittbuhl   +8 more
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

The Complex Structure of the Abell 548–Abell 3367 Region

Astronomy
Archival XMM and ROSAT X-Ray data are used to investigate the structure of the Abell 548–Abell 3367 region. Based on previous optical studies, this is a region likely to be rich in structure, although studies are in disagreement regarding the connection ...
Mark J. Henriksen, Layla Ahmed
doaj   +1 more source

Trophic Plasticity of the Invasive Redbelly Tilapia (Coptodon zillii) in China Inferred From DNA Metabarcoding Analysis

Ecology and Evolution, Volume 15, Issue 4, April 2025.
The feeding patterns of invasive populations of C. zillii in different habitats and seasons within a large‐scale geographic area (spanning 9.86° latitude and 10.47° longitude) in China were directly compared. ABSTRACT The redbelly tilapia (Coptodon zillii) is one of the most dangerous invasive alien fishes in the world.
Shoujie Tang, Ying Xing, Temesgen Tola Geletu, Jinliang Zhao   +3 more
wiley   +1 more source

Verification of the Fusarium‐Increasing Properties of the Dominant Dwarfing Gene Ddw1 in triticale (×Triticosecale)

Plant Breeding, Volume 144, Issue 2, Page 151-158, April 2025.
ABSTRACT Dwarfing genes that are considerably reducing plant height are used in many cereals. In triticale, the rye‐derived dominant dwarfing gene Ddw1 was introgressed in commercial varieties. It has already been shown that this gene increases Fusarium head blight (FHB) susceptibility in one segregating population.
Thomas Miedaner, Paul Gruner, Hans Peter Maurer   +2 more
wiley   +1 more source

The neonatal mortality risk of vulnerable newborns in rural Bangladesh: A prospective cohort study within the Shonjibon trial

Tropical Medicine &International Health, Volume 30, Issue 4, Page 283-291, April 2025.
Abstract Objectives Preterm birth (<37 weeks), low birth weight (2500 g), small‐for‐gestational‐age (birth weight <10th percentile of a given reference), and large‐for‐gestational‐age (birth weight >90th percentile of a given reference) are indicators of vulnerable infants and risk factors for neonatal mortality. We estimated the prevalence and risk of
Alexandra Hewish, Michael J. Dibley, Shahreen Raihana, Mohammad Masudur Rahman, Sajia Islam, Shams el Arifeen, Tanvir Huda   +6 more
wiley   +1 more source

Galaxy groups in the presence of cosmological constant: Increasing the masses of groups

Physics Letters B
The boundaries of galaxy groups and clusters are defined by the interplay between the Newtonian attractive force and the decoupling from the local expansion of the Universe.
David Benisty, Moshe M. Chaichian, Anca Tureanu   +2 more
doaj  

Dynamical Theory of Groups and Clusters of Galaxies

, 1993
The different dynamical processes (relaxation, dynamical friction, tides and mergers) operating in groups and clusters are reviewed. The small-scale substructure observed in clusters is argued to be the remnants of the cores of rich clusters that merged together, rather than large groups falling into the cluster. The {\sl ROSAT\/} X-ray observations of
openaire   +3 more sources