Results 181 to 190 of about 1,069,925 (330)

Chemical Abundances of a Sample of Oxygen-dominated Galaxies [PDF]

, 2023
B. E. Miranda-Pérez, A. M. Hidalgo-Gámez   +1 more
openalex   +1 more source

Primer Length in Reverse Transcription Determines Biodiversity Recovery and Reproducibility in eRNA Metabarcoding

Environmental DNA, Volume 8, Issue 2, March/April 2026.
Primer length for reverse transcription significantly affects eRNA‐based biodiversity recovery and community structure. Shorter primers, particularly N4 and N5, in random priming and medium‐length primers, particularly T20, in oligo(dT) priming demonstrate superior performance, especially in detecting the rare biosphere.
Fuwen Wang, Wei Xiong, Xuena Huang, Aibin Zhan   +3 more
wiley   +1 more source

Chemical Components in the Virgo Overdensity and Hercules–Aquila Cloud: Hints of More than One Merger Event in GSE-like Debris

The Astrophysical Journal
Using elemental abundances for 1.26 million K giants in the Large Sky Area Multi-Object Fiber Spectroscopic Telescope DR8 value-added catalog, we analyze the chemical abundances of the Virgo Overdensity and Hercules–Aquila Cloud.
Haoyang Liu, Cuihua Du, Thomas Donlon II, Mingji Deng   +3 more
doaj   +1 more source

Phytochemical Profiling and Characterization of Honeydew, Cantaloupe, and Galia Melon Peel Extracts for Potential Prebiotic Activities

Food Science &Nutrition, Volume 14, Issue 3, March 2026.
Bioactive compounds are recovered from Honeydew, Cantaloupe, and Galia melon peels through aqueous and ethanolic extraction followed by freeze‐drying. The resulting extracts undergo comprehensive characterization using HPLC, FTIR, and NMR spectroscopy to define their chemical profiles.
Nimra Sameed, Samreen Ahsan, Atif Liaqat, Muhammad Adil Farooq, Dughaim Al‐Ahmari, Matteo Bordiga, Tawfiq Alsulami   +6 more
wiley   +1 more source

XMM Observations of Metal Abundances in Galaxy Clusters

Acta Polytechnica, 2011
The hot gas that fills the space between galaxies in clusters is rich in metals. Due to their large potential well, galaxy clusters accumulate metals over the whole history of the cluster, and retain important information on cluster formation and ...
L. Lovisari, S. Schindler, W. Kapferer
doaj  

Iron Snails: Nonequilibrium Dynamics and Spiral Abundance Patterns

The Astrophysical Journal
Galaxies are not in a dynamical steady state: they continually undergo perturbations, e.g., from infalling dwarf galaxies and dark matter substructure. After a dynamical perturbation, stars phase mix toward a new steady state; in so doing, they generally
Neige Frankel, David W. Hogg, Scott Tremaine, Adrian Price-Whelan, Jeff Shen   +4 more
doaj   +1 more source

The spheroidal bulge of the Milky Way: Chemodynamically distinct from the inner-thick disc and bar

Astronomy & Astrophysics
Studying the composition and origin of the inner region of our Galaxy—the “Galactic bulge”—is crucial for understanding the formation and evolution of the Milky Way and other galaxies.
Nepal S., Chiappini C., Pérez-Villegas A., Queiroz A. B., Souza S., Steinmetz M., Anders F., Khalatyan A., Barbuy B., Guiglion G.   +9 more
doaj   +1 more source

Akkermansia muciniphila enhances chicken resistance to infectious bronchitis virus by boosting GABA synthesis and suppressing the NF‐κB inflammatory pathway

iMetaOmics, Volume 3, Issue 1, March 2026.
Infectious bronchitis virus (IBV) represents a major threat to poultry production, with current control strategies offering limited protection. In this study, we demonstrate gut microbiome is a critical determinant of IBV resistance using fecal microbiota transplantation.
Ouyang Peng, Yufang Liu, Xuanci Wang, Yihui Huang, Yiqin Yang, Qixiang Kang, Rui Geng, Guangli Hu, Aiping Lv, Fangyu Hu, Yongbo Xia, Xin Luo, Jiamin Liao, Yihong He, Zhanpeng Kuang, Yunping Du, Yun Zhang, Chunyi Xue, Zongxi Han, Wen‐Jun Li, Lei Dong, Hao Zhang, Yongchang Cao   +22 more
wiley   +1 more source

Modeling the Ages and Chemical Abundances of Elliptical Galaxies

The Astrophysical Journal
Spectroscopic studies of elliptical galaxies show that their stellar population ages, mean metallicity, and α enhancement traced by [Mg/Fe] all increase with galaxy stellar mass or velocity dispersion.
Nicole Marcelina Gountanis, David H. Weinberg, Aliza G. Beverage, Nathan R. Sandford, Charlie Conroy, Mariska Kriek   +5 more
doaj   +1 more source

3D elemental abundances of stars at formation across the histories of Milky Way-mass galaxies in the FIRE simulations

, 2022
Matthew A. Bellardini, Andrew Wetzel, Sarah Loebman, Jeremy Bailin   +3 more
openalex   +1 more source