Results 21 to 30 of about 96,570 (289)

Optical Properties of Light-Scattering Standards for CCD Photometry

open access: yesSensors, 2023
This paper analyzes the light-scattering standards currently used for calibration (verification) and systematic research in photo and spectrophotometry tools.
Denys Bondariev   +4 more
doaj   +1 more source

Search and study of the space debris and asteroids within ISON project [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2021
International Scientific Optical Network (ISON) is an open international voluntary project specializing in observations of the near-Earth space objects.
IGOR E. MOLOTOV   +23 more
doaj   +1 more source

Overview of Gaia Multi-Color Photometry

open access: yesOpen Astronomy, 2003
Gaia will obtain multi-color photometry for astrometric and astrophysical purposes. A photometry in five broad bands and with high angular resolution will be obtained after every astrometric observation of a star, especially for the sake of correcting ...
Høg Erik
doaj   +1 more source

Optical Glucose Sensor Using Pressure Sensitive Paint

open access: yesSensors, 2021
A glucose sensor is used as an essential tool for diagnosing and treating diabetic patients and controlling processes during cell culture. Since the development of an electrochemical-based glucose sensor, an optical glucose sensor has been devised to ...
Jongwon Park
doaj   +1 more source

Homogeneous photometry – VII. Globular clusters in the Gaia era [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
We present wide-field, ground-based Johnson-Cousins UBVRI photometry for 48 Galactic globular clusters based on almost 90000 public and proprietary images.
P. B. Stetson   +6 more
semanticscholar   +1 more source

Single molecule mass photometry of nucleic acids

open access: yesbioRxiv, 2020
Mass photometry is a recently developed methodology capable of detection, imaging and mass measurement of individual proteins under solution conditions. Here, we show that this approach is equally applicable to nucleic acids, enabling their facile, rapid
Yiwen Li, W. Struwe, P. Kukura
semanticscholar   +1 more source

The Apparent Tidal Decay of WASP-4 b Can Be Explained by the Rømer Effect

open access: yesUniverse, 2023
Tidal orbital decay plays a vital role in the evolution of hot Jupiter systems. As of now, this has only been observationally confirmed for the WASP-12 system.
Jan-Vincent Harre, Alexis M. S. Smith
doaj   +1 more source

Quantifying the heterogeneity of macromolecular machines by mass photometry

open access: yesNature Communications, 2019
Sample purity is central to in vitro studies of protein function and regulation, and to the efficiency and success of structural studies using techniques such as x-ray crystallography and cryo-electron microscopy (cryo-EM).
Adar Sonn-Segev   +16 more
semanticscholar   +1 more source

Simultaneous Electrophysiology and Fiber Photometry in Freely Behaving Mice

open access: yesFrontiers in Neuroscience, 2020
In vivo electrophysiology is the gold standard technique used to investigate sub-second neural dynamics in freely behaving animals. However, monitoring cell-type-specific population activity is not a trivial task.
Amisha A. Patel   +3 more
semanticscholar   +1 more source

New Light Curves and Orbital Period Investigations of the Interacting Binary System UV Piscium

open access: yesJournal of Astronomy and Space Sciences, 2019
UV Psc is a typical RS CVn type system undergoing dynamic chromosphere activity. We performed photometric observations of the system in 2015 and secured new BVR light curves showing well-defined photometric waves.
Min-Ji Jeong   +2 more
doaj   +1 more source

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