Results 101 to 110 of about 1,299,626 (329)

An enzyme‐linked immunosorbent assay (ELISA)‐based activity assay for AMP‐activated protein kinase (AMPK)

FEBS Open Bio, EarlyView.
Measuring AMP‐activated protein kinase (AMPK) activity in vitro is crucial for testing AMPK activators or inhibitors with therapeutic potential. Here, we report an enzyme‐linked immunosorbent assay (ELISA)‐based AMPK activity assay with simple steps and high sensitivity, which offers a simple, robust, and cost‐effective alternative to traditional ...
Trezze P. Nguyen, Shangze Lyu, Yang Liu
wiley   +1 more source

Refining the Stellar Parameters of τ Ceti: a Pole-on Solar Analog

The Astronomical Journal, 2023
To accurately characterize the planets a star may be hosting, stellar parameters must first be well determined. τ Ceti is a nearby solar analog and often a target for exoplanet searches.
Maria Korolik, Rachael M. Roettenbacher, Debra A. Fischer, Stephen R. Kane, Jean M. Perkins, John D. Monnier, Claire L. Davies, Stefan Kraus, Jean-Baptiste Le Bouquin, Narsireddy Anugu, Tyler Gardner, Cyprien Lanthermann, Gail H. Schaefer, Benjamin Setterholm, John M. Brewer, Joe Llama, Lily L. Zhao, Andrew E. Szymkowiak, Gregory W. Henry   +18 more
doaj   +1 more source

Effects of Stellar Rotation in Parker's Hydrodynamic Stellar Wind Model: How Protostars and Strong Rotators Lose their Angular Momentum Fast [PDF]

arXiv, 2016
The effects of the stellar rotation and the consequent azimuthal stellar wind flow in Parker's [9] hydrodynamic stellar wind model are discussed. Of special interest is the emergence of a whole new hydrodynamic physics via a new critical point in the stellar wind flow, which supersedes the critical point in Parker's [9] hydrodynamic model.
arxiv  

Investigating stellar surface rotation using observations of starspots [PDF]

, 2011
Rapid rotation enhances the dynamo operating in stars, and thus also introducessignificantly stronger magnetic activity than is seen in slower rotators. Many young cool stars still have the rapid, primordial rotation rates induced by the interstellar molecular cloud from which they were formed.
arxiv   +1 more source

Apparent age spreads in clusters and the role of stellar rotation [PDF]

, 2015
We use the Geneva Syclist isochrone models that include the effects of stellar rotation to investigate the role that rotation has on the resulting colour-magnitude diagram (CMD) of young and intermediate age clusters.
F. Niederhofer, C. Georgy, N. Bastian, S. Ekström   +3 more
semanticscholar   +1 more source

Observational studies of stellar rotation [PDF]

EAS Publications Series, 2013
This course reviews the rotational properties of non-degenerate stars as observed from the protostellar stage to the end of the main sequence. It includes an introduction to the various observational techniques used to measure stellar rotation. Angular momentum evolution models developed over the mass range from the substellar domain to high-mass stars
openaire   +4 more sources

Stability of rotating spherical stellar systems [PDF]

Monthly Notices of the Royal Astronomical Society, 1999
We study the stability of rotating collisionless self-gravitating spherical systems by using high resolution N-body experiments on a Connection Machine CM-5. We added rotation to Ossipkov-Merritt (hereafter OM) anisotropic spherical systems by using two methods.
Perez, Jérôme, Alimi, J.-M., Serna, A.
openaire   +5 more sources

Hydrophobicity causes anomalous migration of cystine/glutamate antiporter SLC7A11 in SDS‐PAGE with low acrylamide concentration

FEBS Open Bio, EarlyView.
SLC7A11 frequently migrates faster in SDS‐PAGE. The present study found that the high hydrophobicity of SLC7A11 causes its anomalous migration in SDS‐PAGE with a low concentration of acrylamide gel. Replacing isoleucine with asparagine reduced hydrophobicity and restored its normal migration at 55 kDa, revealing the role of hydrophobicity and gel ...
Nsengiyumva Emmanuel, Qian He, Yixin Kang, Dianbao Zhang, Min Gao, Minglin Wang, Kexin Fan, Jingwen Xiong, Shaobo Wu, Botao Fa, Zhengtao Xiao, Yingfang Niu, Jun Yao, Yilei Zhang   +13 more
wiley   +1 more source

Accurate and Robust Stellar Rotation Periods Catalog for 82771 Kepler Stars Using Deep Learning

The Astronomical Journal
We propose a new framework to predict stellar properties from light curves. We analyze the light-curve data from the Kepler space mission and develop a novel tool for deriving the stellar rotation periods for main-sequence stars.
Ilay Kamai, Hagai B. Perets
doaj   +1 more source

PHOTOMETRIC AMPLITUDE DISTRIBUTION OF STELLAR ROTATION OF KOIs—INDICATION FOR SPIN–ORBIT ALIGNMENT OF COOL STARS AND HIGH OBLIQUITY FOR HOT STARS [PDF]

, 2015
The observed amplitude of the rotational photometric modulation of a star with spots should depend on the inclination of its rotational axis relative to our line of sight. Therefore, the distribution of observed rotational amplitudes of a large sample of
T. Mazeh, H. Perets, A. McQuillan, Eyal Goldstein   +3 more
semanticscholar   +1 more source