Results 81 to 90 of about 247,102 (346)

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

FEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point, Wafaa Achache, Janïs Laudouze, Eliana Sepulveda Ramos, Mickaël Maziero, Céline Crauste, Stéphane Canaan, Pierre Santucci   +7 more
wiley   +1 more source

Luminosity Function of Galaxies in Voids: A Modification Inspired by Excursion Set Theory

The Astrophysical Journal
In the standard picture of cosmology, the galaxies reside in dark matter (DM) halos. DM halos are distributed in the cosmic web in different environments.
Zeynab Ashurikisomi, Shant Baghram
doaj   +1 more source

The Truncated Lindley Distribution with Applications in Astrophysics

Galaxies, 2019
This paper reviews the Lindley distribution and then introduces the scale and the double truncation. The unknown parameters of the truncated Lindley distribution are evaluated with the maximum likelihood estimators.
Lorenzo Zaninetti
doaj   +1 more source

The Origin of the Consistent Planetary Nebula Luminosity Function Bright-end Cutoff

The Astrophysical Journal, 2023
The [O iii ] 5007 Å line is typically the brightest line in planetary nebula (PN) spectra. Observations show that the brightest [O iii ] 5007 Å PN in a galaxy—the planetary nebula luminosity function (PNLF) bright-end cutoff—is surprisingly independent ...
Philippe Z. Yao, Eliot Quataert
doaj   +1 more source

A Derivation of the Luminosity Function of the Kuiper Belt from a Broken Power-Law Size Distribution

, 2008
We have derived a model of the Kuiper belt luminosity function exhibited by a broken power-law size distribution. This model allows direct comparison of the observed luminosity function to the underlying size distribution.
Allen, Bernstein, Bernstein, Bottke, Chiang, Dohnanyi, Fraser, Fuentes, Gladman, Gladman, Gladman, Grundy, Hayashi, J.J. Kavelaars, Jewitt, Kavelaars, Kenyon, Kenyon, Kenyon, Levison, Loredo, Malhotra, O'Brien, Pan, Petit, Safronov, Thommes, Trujillo, Trujillo, Wesley C. Fraser   +29 more
core   +1 more source

The X-ray luminosity function of local galaxies [PDF]

, 1999
We present an estimate of the local X-ray luminosity function and emissivity for different subsamples of galaxies namely Seyferts, LINERS, star-forming and passive (no-emission-line) galaxies.
Basilakos, S., Georgantopoulos, I., Plionis, M.   +2 more
core   +2 more sources

Luminosity‐dependent Quasar Lifetimes: A New Interpretation of the Quasar Luminosity Function [PDF]

The Astrophysical Journal, 2005
5 pages, 3 figures. Accepted for publication in ApJ (September 2005).
Hopkins, Philip, Hernquist, Lars, Cox, Thomas, Di Matteo, Tiziana, Robertson, Brant, Springel, Volker   +5 more
openaire   +4 more sources

Impact of APOE ε4 Genotype Load on Cognitive Function and Lipid Metabolism in Patients With Cerebral Small Vessel Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Apolipoprotein ε4 (APOE ε4) is a potent genetic risk factor for Alzheimer's disease (AD). However, its role in cerebral small vessel disease (CSVD) remains unclear. Given the clinical and pathological similarities between CSVD and AD, this study aimed to investigate the associations of APOE ε4 gene dosage with cognitive function and
Tingru Jin, Haocheng Yang, Feng Liu, Sihao Lin, Junru Hu, Jian Wang, Yulan Gou   +6 more
wiley   +1 more source

The z ≳ 9 Galaxy UV Luminosity Function from the JWST Advanced Deep Extragalactic Survey: Insights into Early Galaxy Evolution and Reionization

The Astrophysical Journal
The high-redshift UV luminosity function provides important insights into the evolution of early galaxies. JWST has revealed an unexpectedly large population of bright ( M _UV ≲ −20) galaxies at z ≳ 10, implying fundamental changes in the star-forming ...
Lily Whitler, Daniel P. Stark, Michael W. Topping, Brant Robertson, Marcia Rieke, Kevin N. Hainline, Ryan Endsley, Zuyi Chen, William M. Baker, Rachana Bhatawdekar, Andrew J. Bunker, Stefano Carniani, Stéphane Charlot, Jacopo Chevallard, Emma Curtis-Lake, Eiichi Egami, Daniel J. Eisenstein, Jakob M. Helton, Zhiyuan Ji, Benjamin D. Johnson, Pablo G. Pérez-González, Pierluigi Rinaldi, Sandro Tacchella, Christina C. Williams, Christopher N. A. Willmer, Chris Willott, Joris Witstok   +26 more
doaj   +1 more source

Fossil group origins V. The dependence of the luminosity function on the magnitude gap [PDF]

, 2015
In nature we observe galaxy aggregations that span a wide range of magnitude gaps between the two first-ranked galaxies of a system ($\Delta m_{12}$).
Aguerri, J. A. L, Barrena, R., Boschin, W., Castro-Rodriguez, N., Corsini, E. M., D'Onghia, E., del Burgo, C., Girardi, M., Iglesias-Paramo, J., Kundert, A., Mendez-Abreu, J., Sanchez-Janssen, R., Vilchez, J. M., Zarattini, S.   +13 more
core   +3 more sources