Results 91 to 100 of about 159,543 (291)

PHOTOMETRICAL STUDY OF OVERCONTACT BINARY SYSTEM V859Cyg

Odessa Astronomical Publications, 2016
Wepresent the results of photometrical research of close  binary system V859Cyg with possible period variations. The light curve of the star was constructed using V-band magnitudes, obtainedin 2007, 2009, 2014 years in Kalinenkov Astronomical Observatory
E. A. Panko, O. G. Sergienko, A. V. Pomazan, D. V. Bodryagin   +3 more
doaj   +1 more source

Relationship Between Neurologic Symptoms and Signs and FMR1 Genotype in Premutation Carriers

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Objectives Fragile X‐associated Tremor/Ataxia Syndrome (FXTAS) is the most severe late‐onset condition caused by a premutation in the FMR1 gene, characterized by expanded CGG triplet repeats of 55–200. Clinical presentations of FXTAS, including gait ataxia, kinetic tremor, cognitive decline, and rare Parkinsonism, are linked to ...
Flora Tassone, Freddy Chafota, Miguel E. Rentería, Randi J. Hagerman, Ellery Santos, Anna Atkinson, Nicholas G. Martin, Elsdon Storey, Danuta Z. Loesch   +8 more
wiley   +1 more source

Rapid Binary Mass Transfer: Circumbinary Outflows and Angular Momentum Losses

The Astrophysical Journal
High rates of stable mass transfer likely occur for some binary star systems, but the resulting flow of mass and angular momentum (AM) is unclear. We perform hydrodynamical simulations of a polytropic donor star and a point-mass secondary to determine ...
Peter Scherbak, Wenbin Lu, Jim Fuller
doaj   +1 more source

Effectiveness of rTMS on Working Memory and Inhibitory Impairments in Patients With Post‐Stroke Executive Deficits

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Considerable efforts have been dedicated to developing effective treatments for post‐stroke executive impairment (PSEI), among which repetitive transcranial magnetic stimulation (rTMS) has shown great potential. This study aimed to investigate the therapeutic effects of high‐frequency rTMS on working memory (WM) and response ...
Mengting Lao, Rongwei Du, Zhujun Wang, Yang Gao, Meiling Cheng, Xianglong Wang, Wen Wu   +6 more
wiley   +1 more source

BLACK HOLE X-RAY BINARIES

Odessa Astronomical Publications, 2017
Masses of black holes in 13 X-ray binary systems determined by different authors are summarized and compared with those of WR stars in close binary systems, which can be considered as progenitors of relativistic objects.
A. M. Cherepashchuk
doaj   +1 more source

Is our Sun a Singleton?

, 2007
Most stars are formed in a cluster or association, where the number density of stars can be high. This means that a large fraction of initially-single stars will undergo close encounters with other stars and/or exchange into binaries.
Adams F C, Binney J, D Mackey, D Malmberg, F De Angeli, Fabrycky D Tremaine S, Ford E B Rasio F A, Holman M J, J E Chambers, M B Davies, M I Wilkinson, Malmberg D Davies M B, Marzari F, Mazeh T, Pfahl E, Portegies Zwart S F, R P Church, Takeda G, Wu Y Murray N W Ramsahi J M   +18 more
core   +1 more source

A Systematic Comparison of Alpha‐Synuclein Seed Amplification Assays for Increasing Reproducibility

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Seed amplification assays (SAAs) enable ultrasensitive detection of misfolded α‐synuclein across biofluids and tissues. Yet, heterogeneity in protocols limits cross‐study comparability and clinical translation. Here, we review α‐synuclein SAA methods and their performance across various biological matrices.
Manuela Amaral‐do‐Nascimento, Daniela F. Santos, Tuane C. R. G. Vieira, Tiago F. Outeiro   +3 more
wiley   +1 more source

Two Ultralow-mass-ratio Binary Systems at Critical Evolutionary Stages

The Astronomical Journal
In this paper, we present photometric observations and period analysis of two totally eclipsing binaries with extremely low-amplitude light curves. Both binaries exhibit typical W Ursae Majoris-type light curves with total eclipses, allowing for the ...
Di-Fu Guo, Kai Li, Fen Liu, Li-heng Wang, Huai-Zhen Li, Xu Chen, Xiang Gao   +6 more
doaj   +1 more source

ELECTRONIC TEXTBOOK FOR AMATEUR ASTRONOMERS AND STUDENTS "Binary stars and their evolution"

Odessa Astronomical Publications, 2017
Electronic textbook for members and supervisors of the Youth Academy of Sciences; schoolars and teachers; students of the first courses. Total volume of the printed version is 86pp. The textbook is devoted to 100-th Anniversary of Prof.
L. L. Chinarova
doaj   +1 more source

UV Observations of Close Binary Stars [PDF]

Highlights of Astronomy, 1983
Ultraviolet spectroscopic observations made with the Copernicus and IUE spacecraft have been analyzed. The observations represent a collaborative effort with G. J. Peters.Observational evidence supporting the existence of a turbulent accretion layer has been discussed earlier by Peters. Ionization equilibrium calculations suggest the following physical
openaire   +1 more source