Results 71 to 80 of about 20,590 (100)

TO THE QUESTION OF CHOOSING THE MODEL OF WEAK INTERPLANETARY SCINTILLATIONS OF COSMIC SOURCES RADIOEMISSION IN RANGE FROM 8 TO 80 MHZ

open access: yesRadio Physics and Radio Astronomy, 2019
Purpose: An overview of the models of electromagnetic wave propagation in random media for the possibility of using them to describe the weak interplanetary scintillations of radio emission of cosmic sources in the range from 8 to80 MHz, as well as ...
N. V. Кuhai, N. N. Kalinichenko
doaj   +1 more source

Association between alcohol and cardiovascular disease: Mendelian randomisation analysis based on individual participant data

open access: yesBritish medical journal, 2014
Objective To use the rs1229984 variant in the alcohol dehydrogenase 1B gene (ADH1B) as an instrument to investigate the causal role of alcohol in cardiovascular disease.
Michael V. Holmes   +154 more
semanticscholar   +1 more source

Instrumentation and Future Missions in the Upcoming Era of X-ray Polarimetry

open access: yesGalaxies, 2018
The maturity of current detectors based on technologies that range from solid state to gases renewed the interest for X-ray polarimetry, raising the enthusiasm of a wide scientific community to improve the performance of polarimeters as well as to ...
Sergio Fabiani
doaj   +1 more source

The type Ib supernova 1984L in NGC 991

open access: yes, 1989
SN 1984L in NGC 991 is a temporarily unique object for the Type Ib subclass of supernovae. It remains the only “fully” observed SN Ib to date, where “fully” means photometry and spectroscopy at early and late times.
E. Schlegel, R. Kirshner
semanticscholar   +1 more source

Breast cancer risk in transgender people receiving hormone treatment: nationwide cohort study in the Netherlands

open access: yesBritish medical journal, 2019
Objective To investigate the incidence and characteristics of breast cancer in transgender people in the Netherlands compared with the general Dutch population. Design Retrospective, nationwide cohort study.
C. D. de Blok   +8 more
semanticscholar   +1 more source

The Lingering Anomalous Secular Increase of the Eccentricity of the Orbit of the Moon: Further Attempts of Explanations of Cosmological Origin

open access: yesGalaxies, 2014
New analyses of extended data records collected with the Lunar Laser Ranging (LLR) technique performed with improved tidal models were not able to resolve the issue of the anomalous rate e ˙ of the eccentricity e of the orbit of the Moon, which is ...
Lorenzo Iorio
doaj   +1 more source

An Introduction to Particle Acceleration in Shearing Flows

open access: yesGalaxies, 2019
Shear flows are ubiquitously present in space and astrophysical plasmas. This paper highlights the central idea of the non-thermal acceleration of charged particles in shearing flows and reviews some of the recent developments.
Frank M. Rieger
doaj   +1 more source

Flux Distribution of Gamma-Ray Emission in Blazars: The Example of Mrk 501

open access: yesGalaxies, 2018
Flux distribution is an important tool to understand the variability processes in active galactic nuclei. We now have available a great deal of observational evidences pointing towards the presence of log-normal components in the high energy light curves,
Carlo Romoli   +4 more
doaj   +1 more source

PHOTOMETRY AND MODULATION OF LIGHT CURVES IN THE BLAZHKO STAR V365 HER

open access: yesOdessa Astronomical Publications, 2016
The photometric CCD observations for the Blazhko RR Lyr type star V365 Her in Astronomical stations near Odessa (Ukraine) have been carried out. The light curves in V system were obtained and the frequency Fourier analyse was performed.The strong Blazhko
S. N. Udovichenko
doaj   +1 more source

Optical Spectra of Radio Planetary Nebulae in the Small Magellanic Cloud [PDF]

open access: yesSerbian Astronomical Journal, 2008
We present preliminary results from spectral observations of four (4) candidate radio sources co-identified with known planetary nebulae (PNe) in the Small Magellanic Cloud (SMC).
Payne, J. L.   +5 more
doaj  

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