Results 61 to 70 of about 37,453 (224)

CHARACTERIZATION OF A SAMPLE OF INTERMEDIATE-TYPE AGN. I. Spectroscopic properties and serendipitous discovery of new Dual AGN [PDF]

open access: yes, 2012
A sample of 10 nearby intermediate-type active galactic nuclei (AGN) drawn from the Sloan Digital Sky Survey (SDSS-DR7) is presented. The aim of this work is to provide estimations of the black hole mass for the sample galaxies from the dynamics of the ...
Vahram Chavushyan
core  

Insights Into the Structural Features, Codon Usage Patterns, and Phylogenetic Analysis in Neoniphon argenteus (Teleostei: Holocentriformes) Based on Complete Mitochondrial Genome

open access: yesEcology and Evolution, Volume 16, Issue 9, September 2026.
This study provides important foundational information for further research on the mitochondrial genomes of Holocentridae. ABSTRACT Neoniphon argenteus, a widely distributed nocturnal coral reef fish in the family Holocentridae, plays an important role in maintaining coral reef ecosystem health, yet its phylogenetic position remains poorly resolved. To
Lei Xie   +7 more
wiley   +1 more source

AGN automatic photometric classification [PDF]

open access: yes, 2013
In this paper, we discuss an application of machine-learning-based methods to the identification of candidate active galactic nucleus (AGN) from optical survey data and to the automatic classification ofAGNs in broad classes.
Cavuoti S.   +4 more
core  

Synthetic Food Colorants and Gut Microbiota: A Systematic Review of Preclinical Studies

open access: yesFood Frontiers, Volume 7, Issue 5, September 2026.
ABSTRACT Growing evidence suggests that industrial food processing, including the excess consumption of food additives, might have a negative impact on human health. Despite regulatory safety evaluations, their impact on gut microbiota remains poorly characterized.
Sebastiano Alfio Torrisi   +9 more
wiley   +1 more source

Mapping AGN winds: A connection between radio-mode AGNs and the AGN feedback cycle

open access: yesAstronomy & Astrophysics
We present a kinematic analysis based on the large integral field spectroscopy (IFS) dataset of SDSS-IV MaNGA (Sloan Digital Sky Survey/Mapping Nearby Galaxies at Apache Point Observatory; ∼10 000 galaxies). We have compiled a diverse sample of 594 unique active galactic nuclei (AGNs), identified through a variety of independent selection techniques ...
M. Albán   +4 more
openaire   +2 more sources

Chlorinated Byproducts in Diisocyanates Synthesis From 35Cl Nuclear Quadrupole Resonance

open access: yesHelvetica Chimica Acta, Volume 109, Issue 9, September 2026.
We combine 35Cl NQR spectroscopy & DFT to identify trace chlorinated impurities in industrial MDI streams, creating a non‐destructive “analytical ruler” for chemical process monitoring. ABSTRACT Chlorinated impurities in industrial diisocyanates production significantly impact product quality and stability, yet their speciation remains an analytical ...
Anna Giorgia Nobile   +7 more
wiley   +1 more source

Harnessing cracks in metal films: Design strategies for stretchable conductors

open access: yesInfoMat, Volume 8, Issue 9, September 2026.
In stretchable electronics, metal film‐based components function either as strain‐insensitive interconnects/electrodes or as strain‐sensitive sensors, both of which are governed by crack‐induced electromechanical responses, yet these two roles have often been discussed separately in previous reviews.
Ting Zhu, Kai Wu, Gang Liu, Jun Sun
wiley   +1 more source

The Hobby–Eberly Telescope Dark Energy Experiment Survey (HETDEX) Active Galactic Nuclei Catalog: The Fourth Data Release

open access: yesThe Astrophysical Journal Supplement Series
We present the active galactic nuclei (AGN) catalog from the fourth data release (HDR4) of the Hobby–Eberly Telescope Dark Energy Experiment Survey (HETDEX). HETDEX is an untargeted spectroscopic survey.
Chenxu Liu   +9 more
doaj   +1 more source

Assessment of Vertebral Body Bone Quality in Adolescent Idiopathic Scoliosis (AIS) Using Micro‐CT, qBEI, and Nanoindentation—A Case Study

open access: yesJOR SPINE, Volume 9, Issue 3, September 2026.
A new biopsy protocol enabled the first combined micro‐CT, qBEI, and nanoindentation study of AIS vertebral bodies, revealing slightly thicker trabeculae, broader mineralization distribution, and decreasing mineralization and reduced modulus with vertebral wedge angle severity—supporting a role for altered bone quality in AIS.
Natalia M. Castoldi   +12 more
wiley   +1 more source

The evolution of galaxies and AGN from deep x-ray and optical surveys [PDF]

open access: yes, 2004
Two complementary new surveys of the x-ray background (XRB), the WHDF and the 10 X 10 ks, are presented. 140 serendipitous x-ray hard and soft sources (S(_2)-10 keV 3. 10(^15); S0.5-2 keV 4 .
Mumbrú, Marc Vallbé
core  

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