Results 91 to 100 of about 10,786,884 (386)

The rate and luminosity function of long Gamma Ray Bursts [PDF]

, 2015
We derive, adopting a direct method, the luminosity function and the formation rate of long Gamma Ray Bursts through a complete, flux-limited, sample of Swift bursts which has a high level of completeness in redshift z (~82%). We parametrise the redshift
A. Pescalli, G. Ghirlanda, R. Salvaterra, G. Ghisellini, S. Vergani, S. Vergani, F. Nappo, O. Salafia, O. Salafia, A. Melandri, S. Covino, D. Götz   +11 more
semanticscholar   +1 more source

SmallTalk: a novel small‐sized fusion tag for peptide expression and purification

FEBS Open Bio, EarlyView.
The SmallTalk fusion tag allows for the efficient expression and purification of soluble recombinant proteins or peptides in Escherichia coli. Testing with SmallTalk‐GFP confirmed that the proteins were soluble and folded correctly, while SmallTalk‐Bin1b maintained its antimicrobial activity against various bacterial isolates. This streamlined workflow
Atika Tariq, Nestor G. Casillas‐Vega, Alma Gomez‐Loredo, Xristo Zarate   +3 more
wiley   +1 more source

The Gamma-Ray Luminosity Function of Flat-spectrum Radio Quasars

The Astrophysical Journal
We have utilized the largest sample of gamma-ray-selected Fermi flat-spectrum radio quasars (FSRQs) ever used (519 sources) to construct the luminosity function and its evolution through cosmic history. In addition to spanning large redshift (0 
Garima Rajguru, L. Marcotulli, M. Ajello, M. Di Mauro, M. Urry   +4 more
doaj   +1 more source

Evolution of the Luminosity Function [PDF]

Symposium - International Astronomical Union, 1986
In this review, the currently published, complete, spectroscopically identified samples of quasars are assembled to produce a composite luminosity function, independent of evolutionary assumptions. Two interpretations of the change with cosmic time provide reasonable fits to the data.
openaire   +1 more source

Autophagosome marker, LC3, is released extracellularly via several distinct pathways

FEBS Open Bio, EarlyView.
This study establishes a novel HiBiT‐tagging system for ultrasensitive detection of LC3, revealing multiple pathways for its extracellular secretion. It demonstrates that LC3 is released via both autophagy‐dependent and ‐independent mechanisms, including a novel route for nonlipidated LC3‐I.
Koki Saito, Masashi Arakawa, Koki Maeda, Eiji Morita   +3 more
wiley   +1 more source

New Galaxy UV Luminosity Constraints on Warm Dark Matter from JWST

The Astrophysical Journal
We exploit the recent James Webb Space Telescope (JWST) determination of galaxy UV luminosity functions over the redshift range z = 9–14.5 to derive constraints on warm dark matter (WDM) models. The delayed structure formations in WDM universes make high-
Bin Liu, Huanyuan Shan, Jiajun Zhang
doaj   +1 more source

The Planetary Nebula Luminosity Function in the Era of Precision Cosmology

Frontiers in Astronomy and Space Sciences, 2022
One of the great surprises of the late 1980s was the discovery that the [O III] λ5007 planetary nebula luminosity function (PNLF) could be used as a precision extragalactic standard candle.
Robin Ciardullo, Robin Ciardullo
doaj   +1 more source

The Quasar Luminosity Function [PDF]

Symposium - International Astronomical Union, 1996
Recent results at high redshifts are briefly reviewed. An analysis of the evolution of the quasar luminosity function based on the recently published Hawkins & Véron (1995) variability-selected quasar sample is presented. The results support the conclusions of earlier work that suggested the simple two power law luminosity function, of invariant ...
openaire   +1 more source

The X-ray luminosity function of active galactic nuclei in the redshift interval z=3-5 [PDF]

, 2015
We combine deep X-ray survey data from the Chandra observatory and the wide-area/shallow XMM-XXL field to estimate the AGN X-ray luminosity function in the redshift range z=3-5.
A. Georgakakis, J. Aird, J. Buchner, M. Salvato, M. Menzel, W. Brandt, I. McGreer, T. Dwelly, G. Mountrichas, C. Koki, I. Georgantopoulos, L. Hsu, A. Merloni, Z. Liu, K. Nandra, N. Ross, N. Ross   +16 more
semanticscholar   +1 more source

Pathogenic Neurofibromatosis type 1 gene variants in tumors of non‐NF1 patients and role of R1276

FEBS Open Bio, EarlyView.
Somatic variants of the neurofibromatosis type 1 (NF1) gene occur across neoplasms without clinical manifestation of the disease NF1. We identified emerging somatic pathogenic NF1 variants and hotspots, for example, at the arginine finger 1276. Those missense variants provide fundamental information about neurofibromin's role in cancer.
Mareike Selig, Swanhild Lohse, Sara Elahi, Nils Hartmann, Stefanie Deckert, Shutian Si, Alexander Desuki, Anja Harder   +7 more
wiley   +1 more source