Results 131 to 140 of about 5,702,760 (334)

Pulsating Star Mystery Solved in Rare Alignment of Cepheid Variable and another Star [PDF]

, 2011
NULL AUTHOR_ID
openalex   +1 more source

The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity

FEBS Letters, EarlyView.
The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley   +1 more source

From UV-bright Galaxies to Early Disks: The Importance of Turbulent Star Formation in the Early Universe

The Astrophysical Journal
Bursty star formation at early times can explain the surprising abundance of early UV-bright galaxies revealed by JWST but can also be a reason for the delayed formation of galactic disks in high-resolution cosmological simulations.
Vadim A. Semenov, Charlie Conroy, Lars Hernquist   +2 more
doaj   +1 more source

NSV 05513 = 69 (Δ) UMA A LONG PERIODIC ECLIPSING VARIABLE?

Odessa Astronomical Publications, 2017
The star NSV 05513 is suggested to be an eclipsing variable with a period of 1030m - 1180m(1115m) and a range 3.m3-4.m3 V.
I. S. Bryukhanov, V. M. Askirko
doaj   +1 more source

The role and implications of mammalian cellular circadian entrainment

FEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Classification of Periodic Variable Stars from TESS

The Astrophysical Journal Supplement Series
The number of known periodic variable stars has increased rapidly in recent years. As an all-sky transit survey, the Transiting Exoplanet Survey Satellite (TESS) plays an important role in detecting low-amplitude variable stars.
Xinyi Gao, Xiaodian Chen, Shu Wang, Jifeng Liu   +3 more
doaj   +1 more source

Little Bear's Pulsating Stars: Variable Star Census of dSph UMi Galaxy [PDF]

, 2017
Karen Kinemuchi, Elizabeth Jeffery, Charles A. Kuehn, Kathleen Grabowski, J. M. Nemec   +4 more
openalex   +1 more source

The G 305 Star-forming Region. II. Irregular Variable Stars [PDF]

, 2021
N. Medina, J. Borissova, R. Kurtev, J. Alonso-García, C. Román-Zúñiga, A. Bayo, Marina Kounkel, Alexandre Roman–Lopes, P. W. Lucas, Kevin R. Covey, F. Förster, D. Minniti, L. Adame, Jesús Hernández   +13 more
openalex   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

On the Nature of V2282 Sgr

Open Astronomy, 2013
The star V2282 Sgr is positionally consistent with a strong Chandra X-ray and a Spitzer/IRAC mid-infrared source. We derived its long-term I-band light curve from the photographic archives of the Asiago and Catania Observatories, covering the years from ...
Nesci R., Rossi C., Frasca A., Marilli E., Persi P.   +4 more
doaj   +1 more source