Results 121 to 130 of about 4,118,940 (288)

A Radio-bright Local Little Red Dot Analog

The Astrophysical Journal
The James Webb Space Telescope revealed the existence in the early Universe ( z  > 4) of large populations of little red dots (LRDs), compact red luminous sources that host rapidly growing supermassive black holes (SMBHs) surrounded by coeval nuclear ...
Luis F. Rodríguez, I. Félix Mirabel, Rosa A. González-Lópezlira, Laurent Loinard   +3 more
doaj   +1 more source

Effect of Salinity Stress on Gut–Brain–Gonad Axis in the Red‐Eared Slider (Trachemys scripta elegans)

Integrative Zoology, EarlyView.
The increase in salinity leads to changes in the gut microbiota and metabolites of Trachemys scripta elegans, affecting the synthesis and secretion of neurotransmitters or precursors, which can inhibit the secretion of reproductive hormones and affect the self‐renewal and differentiation process of spermatogonial stem cells.
Qiongyu Zhang, Na Li, Xue Tang, Hanru Chen, Meiling Hong, Li Ding   +5 more
wiley   +1 more source

Galaxy clustering and dynamics from redshift surveys [PDF]

, 1990
The clustering and dynamical properties of the 368 galaxies in the redshift surveys of Metcalfe et al. (1989) and Parker et al. (1986) are investigated. These galaxies were selected from ten high galactic latitude fields complete to a magnitude limit of ...
Hale-Sutton, D, Hale-Sutton, Duncan
core  

Response of Fecal Bacteria and Fungi to Tannin‐Rich Diets in Sika Deer (Cervus nippon): Evidence from Both Feeding Experiments and Field Investigations

Integrative Zoology, EarlyView.
Feeding with tannin‐rich diets altered the fecal microbial composition and increased the relative abundance of tannin‐degrading microbes. We hypothesize that fecal bacteria and fungi may play important roles in helping herbivores adapt to tannin‐rich diets but respond to different tannin concentrations varies.
Di Zhu, Feng Wu, Peiying Wen, Haiyang Gao, Xiaoran Hao, Hongfang Wang   +5 more
wiley   +1 more source

Formation of galaxies

Nuclear Physics B, 1985
Abstract The present theories of galaxy formation are reviewed. The relation between peculiar velocities and the correlation function of galaxies points to the possibility that galaxies do not form uniformly everywhere. Scale invariant properties of the cluster-cluster correlations are discussed. Comparing the correlation functions in a dimensionless
openaire   +1 more source

Longitudinal and cross‐sectional perspectives on elementary school children's post‐error slowing in reading and arithmetic

British Journal of Educational Psychology, EarlyView.
Abstract Background This study investigated the development of primary school children's error‐related adjustments in reading and arithmetic, both cross‐sectionally and longitudinally. Aims We aimed to uncover monitoring‐based cognitive control processes and often‐overlooked strategy use in academic tasks requiring a balancing of speed and accuracy ...
Claudia M. Roebers, Daniela Menath, Hülya Özmen, Ebru Ger   +3 more
wiley   +1 more source

A Closer Look at the Extended Edge-on Low-surface Brightness Galaxies

The Astrophysical Journal
To understand the origin of extended disks of low-surface brightness (LSB) galaxies, we studied in detail four such systems with large disks seen edge on. Two of them are edge-on giant LSB galaxies (gLSBGs) recently identified by our team.
Anna S. Saburova, Damir Gasymov, Evgenii V. Rubtsov, Igor V. Chilingarian, Sviatoslav Borisov, Ivan Gerasimov, Fedor Kolganov, Anastasia V. Kasparova, Roman I. Uklein, Michal Bílek, Kirill A. Grishin, Anatoly Zasov, Mariia Demianenko, Ivan Yu. Katkov, Ana Lalović, Srdjan Samurović   +15 more
doaj   +1 more source

Geoinformation‐Based Analysis of Oral Health Status Among Indigenous Young Adults

Community Dentistry and Oral Epidemiology, EarlyView.
ABSTRACT Objective This study aimed to characterise the Xukuru do Ororubá Indigenous population in Pesqueira, Pernambuco, Brazil, in relation to the oral health status through geoinformation tools. Methods A cross‐sectional observational study, nested within a cohort study, was conducted in 2018.
Herika de Arruda Mauricio, Thatiana Regina Favaro, André Luiz Sá de Oliveira, Rafael da Silveira Moreira   +3 more
wiley   +1 more source

The Heavy Metal Survey: The Evolution of Stellar Metallicities, Abundance Ratios, and Ages of Massive Quiescent Galaxies since z ∼ 2

The Astrophysical Journal
We present the elemental abundances and ages of 19 massive quiescent galaxies at z ∼ 1.4 and z ∼ 2.1 from the Keck Heavy Metal Survey. The ultradeep LRIS and MOSFIRE spectra were modeled using a full-spectrum stellar population fitting code with variable
Aliza G. Beverage, Mariska Kriek, Katherine A. Suess, Charlie Conroy, Sedona H. Price, Guillermo Barro, Rachel Bezanson, Marijn Franx, Brian Lorenz, Yilun Ma, Lamiya A. Mowla, Imad Pasha, Pieter van Dokkum, Daniel R. Weisz   +13 more
doaj   +1 more source

The edge of the Milky Way’s star-forming disc: Evidence from a ’U-shaped’ stellar age profile

Astronomy & Astrophysics
We leveraged reliable age and distance estimates from LAMOST-DR3 and APOGEE-DR17+AstroNN combined with Gaia data to perform a detailed analysis of the stellar age distribution in the Milky Way’s (MW) outer disc using giant stars. Selecting stars near the
Fiteni Karl, Anderson Stuart Robert, Debattista Victor. P., Caruana Joseph, Amarante João A. S., Gough-Kelly Steven, Eyer Laurent, Beraldo e Silva Leandro, Khachaturyants Tigran, Cuomo Virginia   +9 more
doaj   +1 more source