Results 91 to 100 of about 136,231 (311)

RE-CLASSIFICATION OF THE NEGLECTED VARIABLE V480 AQL

open access: yesOdessa Astronomical Publications, 2014
We present the results of multicoloured photometric study of previously neglected variable star V480 Aql. Our V RI observations prove that this star belongs to classical Cepheids with the period of P = 19d.0016.
N. A. Virnina, N. Maslova, T. Krajci
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Variable Stars in M31 Stellar Clusters from the Panchromatic Hubble Andromeda Treasury

open access: yesThe Astrophysical Journal
Variable stars in stellar clusters can offer key constraints on stellar evolution and pulsation models, utilizing estimates of host cluster properties to constrain stellar physical parameters.
Richard Smith   +11 more
doaj   +1 more source

TOPS Telescope Projects on Variable Stars and Other Objects

open access: yes, 2002
Teachers and high school students who attended the University of Hawaii's "Toward Other Planetary Systems" workshop in June 2002 gave presentations on introductory telescope projects on lunar photography, variable stars, and Messier Objects at the AAVSO ...
Kadooka, Mary A.   +2 more
core  

V2494 cyg: A unique FU ori type object in the cygnus OB7 complex [PDF]

open access: yes, 2013
A photometric and spectral study of the variable star V2494 Cyg in the L 1003 dark cloud is presented. The brightness of the star, formerly known as HH 381 IRS, increased by 2.5 mag in R (probably in the 1980s) and since then has remained nearly constant.
Khanzadyan, Tigran   +11 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

Photometric Analysis of the Cataclysmic Variable Star LT Eri

open access: yesThe Astronomical Journal
LT Eri is a long-period eclipsing cataclysmic variable star (CV). This study investigates its outbursts, negative superhumps (NSHs), tilted-disk precession, eclipse-depth variations, and observed minus calculated ( O – C ) behavior, using photometric ...
Qi-Bin Sun   +6 more
doaj   +1 more source

The Effect of Market and Operational Risks on Farmers’ Interest in Honey Star Fruit Cultivation: The Moderating Role of Chili Farming in Banjar City [PDF]

open access: yesE3S Web of Conferences
Farmers' interest in honey star fruit farming in Banjar Regency, West Java Province, Indonesia has decreased. Farmers have difficulty replanting plants during the dry season because it requires high production cost.
Nuraini Candra   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy