Results 91 to 100 of about 1,313,477 (397)

Optical Spectroscopy with the Technology of Virtual Observatory

open access: yesOpen Astronomy, 2011
The contemporary astronomy is flooded with an exponentially growing petabyte-scaled data volumes produced by powerful ground and space-based instrumentation as well as a product of extensive computer simulations and computations of complex numerical ...
Škoda P.
doaj   +1 more source

Spectroscopic wear detector [PDF]

open access: yes, 1993
The elemental composition of a material exposed to hot gases and subjected to wear is determined. Atoms of an elemental species not appearing in this material are implanted in a surface at a depth based on the maximum allowable wear.
Madzsar, George C.
core   +1 more source

GMASS ultradeep spectroscopy of galaxies at z~2 - VII. Sample selection and spectroscopy [PDF]

open access: yes, 2012
The populations of both quiescent and actively star-forming galaxies at 11.4) and magnitude constraints (B(AB)
A. Cimatti   +121 more
core   +4 more sources

Combined spatially resolved metabolomics and spatial transcriptomics reveal the mechanism of RACK1‐mediated fatty acid synthesis

open access: yesMolecular Oncology, EarlyView.
The authors analyzed the spatial distributions of gene and metabolite profiles in cervical cancer through spatial transcriptomic and spatially resolved metabolomic techniques. Pivotal genes and metabolites within these cases were then identified and validated.
Lixiu Xu   +3 more
wiley   +1 more source

The metallicity range of variables in M3

open access: yes, 2003
The recently published spectroscopic metallicities of RR Lyrae stars in M3 (Sandstrom, K., Pilachowski, C. A., and Saha, A. 2001, AJ 122, 3212) though show a relatively wide range of the [Fe/H] values, the conclusion that no metallicity spread is real ...
Bakos   +27 more
core   +1 more source

Spectroscopic signatures of localization with interacting photons in superconducting qubits [PDF]

open access: yesScience, 2017
Putting photons to work Interacting quantum particles can behave in peculiar ways. To understand that behavior, physicists have turned to quantum simulation, in which a tunable and clean system can be monitored as it evolves under the influence of ...
P. Roushan   +27 more
semanticscholar   +1 more source

Plasma‐activated media selectively induces apoptotic death via an orchestrated oxidative stress pathway in high‐grade serous ovarian cancer cells

open access: yesMolecular Oncology, EarlyView.
High‐grade serous ovarian cancer (HGSOC) is the most common and aggressive type of ovarian cancer with urgent need for new treatment strategies. This study evaluates plasma‐activated media (PAM) as a novel treatment for HGSOC, showing its ability to selectively induce oxidative stress and apoptosis in HGSOC cell lines, patient ascites cells and primary
Lorena T. Davies   +9 more
wiley   +1 more source

The Spectroscope and the Weather [PDF]

open access: yesNature, 1875
WE were visited here, on the 11th inst., by a very severe thunderstorm, beginning a little before noon and lasting for about an hour and a half. Anxious to confirm some observations made recently in the West Indies, in which I got from lightning a continuous spectrum, I took out my pocket spectroscope, and on looking through it was at once struck by ...
openaire   +1 more source

High Velocity Spectroscopic Binary Orbits from Photoelectric Radial Velocities: BD+20 5152, a Possible Triple System

open access: yesOpen Astronomy, 2010
The spectroscopic orbit of a high proper motion star, BD+20 5152, is calculated from 34 CORAVEL-type radial velocity measurements. The star has a slightly eccentric orbit with a period of 5.70613 d, half-amplitude of 47.7 km/s and eccentricity of 0.049 ...
Sperauskas J.   +3 more
doaj   +1 more source

Galaxy Distribution Incompleteness Testing Using Self-Organizing Maps [PDF]

open access: yesarXiv, 2022
The calibration of redshift distributions for photometric samples using spectroscopic surveys is plagued by the difficulty in modelling the selection functions of spectroscopic surveys. In this work, we analyse how these selection functions impact redshift inference and quantify the induced biases using local calibration tests in photometry space.
arxiv  

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