Results 91 to 100 of about 138,565 (336)

A Luminous X-Ray Active Galactic Nucleus in the Dwarf–Dwarf Galaxy Merger RGG 66

open access: yesThe Astrophysical Journal
We present the discovery of a luminous X-ray active galactic nucleus (AGN) in the dwarf galaxy merger RGG 66. The black hole is predicted to have a mass of M _BH ∼ 10 ^5.4 M _⊙ and to be radiating close to its Eddington limit ( L _bol / L _Edd ∼ 0.75 ...
Seth J. Kimbrell, Amy E. Reines
doaj   +1 more source

Analysis of the economic viability and environmental impacts of a conceptual process model for the recovery of lactic acid from spent media in cultivated meat production

open access: yesBiotechnology Progress, EarlyView.
Abstract Scaled production of cultivated meat (CM) will co‐produce large volumes of spent media. Recycling of abundant metabolites such as lactic acid in spent media offers an opportunity for valorization and reduction of the carbon footprint of CM production; however, the feasibility has yet to be examined.
Josh Wimble   +2 more
wiley   +1 more source

An Enhanced Massive Black Hole Occupation Fraction Predicted in Cluster Dwarf Galaxies

open access: yesThe Open Journal of Astrophysics
The occupation fraction of massive black holes (MBHs) in low mass galaxies offers interesting insights into initial black hole seeding mechanisms and their mass assembly history, though disentangling these two effects remains challenging.
Michael Tremmel   +5 more
doaj   +1 more source

Quality Attributes of Four Kale Cultivars Grown in a High Tunnel Ecological Farming System

open access: yesBulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca: Horticulture
The leafy green vegetables are rich sources of antioxidants, minerals, vitamins and dietary fiber, which cannot be produced by the human body, the only way for assimilation being by food ingestion.
Viorel TĂMAȘ   +6 more
doaj   +1 more source

From Supermassive Black Holes to Dwarf Elliptical Nuclei: a Mass Continuum

open access: yes, 2006
Considerable evidence suggests that supermassive black holes reside at the centers of massive galactic bulges. At a lower galactic mass range, many dwarf galaxies contain extremely compact nuclei that structurally resemble massive globular clusters.
Elizabeth H. Wehner   +5 more
core   +1 more source

Trends and Insights in Arab Audit Research: A Bibliometric Exploration

open access: yesCanadian Journal of Administrative Sciences / Revue Canadienne des Sciences de l'Administration, EarlyView.
ABSTRACT This study employs bibliometric analysis to investigate audit research trends across five Arab countries—Jordan, Saudi Arabia, Egypt, Tunisia and the United Arab Emirates—each reflecting distinct sociopolitical, economic and legal contexts.
Zouhour Ben Hamadi, Peter Ghattas
wiley   +1 more source

Model Atmospheres for Irradiated Stars in pre-Cataclysmic Variables

open access: yes, 2004
Model atmospheres have been computed for M dwarfs that are strongly irradiated by nearby hot companions. A variety of primary and secondary spectral types are explored in addition to models specific to four known systems: GD 245, NN Ser, AA Dor, and UU ...
Bell S. A.   +9 more
core   +1 more source

Nuclear Entanglement: New Insights Into the Role of Cytoskeleton and Nucleoskeleton in Plant Nuclear Function

open access: yesCytoskeleton, EarlyView.
ABSTRACT Of the three types of cytoskeleton known in animals—actin, microtubules, and intermediate filaments—only actin and microtubules exist in plants. Both play important roles in cellular shaping, organelle movement, organization of the endomembrane system, and cell signaling.
Norman R. Groves   +3 more
wiley   +1 more source

Multiwavelength Constraints on the Local Black Hole Occupation Fraction

open access: yesThe Astrophysical Journal
The fraction of dwarf galaxies hosting central, intermediate-mass black holes (IMBHs) at low redshifts is an important observational probe of black hole seeding at high redshift.
Colin J. Burke   +3 more
doaj   +1 more source

White dwarfs stripped by massive black holes: sources of coincident gravitational and electromagnetic radiation

open access: yes, 2010
White dwarfs inspiraling into black holes of mass $\MBH\simgt 10^5M_\odot$ are detectable sources of gravitational waves in the LISA band. In many of these events, the white dwarf begins to lose mass during the main observational phase of the inspiral ...
A. M. Beloborodov   +32 more
core   +1 more source

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