Results 91 to 100 of about 4,745,474 (343)
The NlpC_P60 superfamily of peptidases is recognised by its key role in bacterial cell wall homeostasis. Recently, studies have also described the involvement of NlpC_P60‐like enzymes in bacterial competitive mechanisms and pathogenesis across several lineages.
Catharina dos Santos Silva+1 more
wiley +1 more source
Variable stars in young open star cluster NGC 7380 [PDF]
We present time series photometry of 57 variable stars in the cluster region NGC 7380. The association of these variable stars with the cluster NGC 7380 has been established on the basis of two colour diagrams and colour-magnitude diagrams.
S. Lata+5 more
semanticscholar +1 more source
Making tau amyloid models in vitro: a crucial and underestimated challenge
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley +1 more source
CY Aquarii: A Triple System with Twin Companions
In this study, we conducted a comprehensive analysis of the SX Phoenicis (SX Phe) type star CY Aquarii (CY Aqr). Our investigation included a detailed O − C analysis based on a 90 yr observational data set, augmented by 1367 newly determined times of ...
Ming Lian, Jia-Shu Niu, Hui-Fang Xue
doaj +1 more source
LUMINOUS AND VARIABLE STARS IN M31 AND M33. II. LUMINOUS BLUE VARIABLES, CANDIDATE LBVs, Fe ii EMISSION LINE STARS, AND OTHER SUPERGIANTS [PDF]
An increasing number of non-terminal eruptions are being found in the numerous surveys for optical transients. Very little is known about these giant eruptions, their progenitors and their evolutionary state.
R. Humphreys+4 more
semanticscholar +1 more source
Variability of Red Stars [PDF]
ACCORDING to a notice, which I found in NATURE'S “Astronomical Column” of November 14, 1895, my theory of the variability of red stars should demand, that the bright lines of hydrogen should be produced there at a low temperature and in a condition never tested by experiments.
openaire +3 more sources
α2 → 8 polysialic acid elicits poor immunogenicity. Small‐angle scattering shows a supramolecular structure with parallel‐chain binding, although in different forms at μm and mm calcium. The major histocompatibility complex requires molecular weights around 2000 Da to produce antibodies, and 2000 Da polysialic oligomers will bind in these structures ...
Kenneth A. Rubinson
wiley +1 more source
Spectroscopic Follow-up on Potential Magnetic Cataclysmic Variables
Spectroscopic observations of nine cataclysmic variables that have been postulated to contain magnetic white dwarfs were obtained to further characterize their classifications, orbital parameters, inclinations, and/or accretion properties.
Paula Szkody+10 more
doaj +1 more source
The EPOCH Project - I. Periodic variable stars in the EROS-2 LMC database [PDF]
The EPOCH (EROS-2 periodic variable star classification using machine learning) project aims to detect periodic variable stars in the EROS-2 light curve database. In this paper, we present the first result of the classification of periodic variable stars
Dae-Won Kim+6 more
semanticscholar +1 more source