Results 31 to 40 of about 263,636 (237)

Sunsets and solar diameter measurement [PDF]

open access: yes, 2011
A sunset over the sea surface offers the possibility to chronometrate a solar transit across the horizon. The vertical solar diameter is proportional to the duration of the sunset, the cosine of the azimuth and the cosine of the latitude of the observing site.
arxiv   +1 more source

An Analytic Approach to Sunset Diagrams in Chiral Perturbation Theory: Theory and Practice [PDF]

open access: yesEur. Phys. J. A (2016) 52: 374, 2016
We demonstrate the use of several code implementations of the Mellin-Barnes method available in the public domain to derive analytic expressions for the sunset diagrams that arise in the two-loop contribution to the pion mass and decay constant in three-flavoured chiral perturbation theory.
arxiv   +1 more source

Features of Earth’s lower ionosphere during solar eclipse and sunset and sunrise hours according to measurements by the API method near Nizhny Novgorod

open access: yesSolar-Terrestrial Physics
We present the results of experimental studies into the response of Earth’s lower ionosphere to a partial solar eclipse. The studies have been carried out using the method of resonant scattering of radio waves by artificial periodic irregularities (APIs)
Bahmetieva N. V.   +4 more
doaj   +1 more source

Review of Sunset OC/EC Instrument Measurements During the EPA’s Sunset Carbon Evaluation Project

open access: yesAtmosphere, 2019
To evaluate the feasibility of the Sunset semicontinuous organic and elemental carbon (OC/EC) monitor, the U.S. Environmental Protection Agency (EPA) sponsored the deployment of this monitor at Chemical Speciation Network (CSN) sites with OC and EC ...
Steven Brown   +10 more
doaj   +1 more source

NMR investigations of the interaction between the azo-dye sunset yellow and Fluorophenol [PDF]

open access: yes, 2013
The interaction of small molecules with larger noncovalent assemblies is important across a wide range of disciplines. Here, we apply two complementary NMR spectroscopic methods to investigate the interaction of various fluorophenol isomers with sunset ...
Aradi F.   +51 more
core   +1 more source

Perceptions and Use of Teaching Strategies for Fundamental Movement Skills in Primary School Physical Education Programs

open access: yesChildren, 2022
Fundamental motor/movement skills (FMS) describe the basic skills necessary to complete physical tasks, and are a key aspect of primary school physical education (PE) programs.
Danielle Salters   +1 more
doaj   +1 more source

Swarming and Mating in \u3ci\u3eAedes Provocans\u3c/i\u3e (Diptera: Culicidae) [PDF]

open access: yes, 2017
Male Aedes provocans formed canopy-level linear swarms in association with prominent trees along hedgerows or convex prominences along woodlot margins.
Gadawski, Randy M, Smith, Stephen M
core   +2 more sources

The scalar sunset diagram at finite temperature with imaginary square masses [PDF]

open access: yesPhys. Rev. D 102, 036013 (2020), 2020
We evaluate the finite temperature scalar sunset diagram with imaginary square masses, that appears in the Gribov-Zwanziger approach to Yang-Mills (YM) theory beyond one-loop order. Since YM theory at finite temperature is governed by center-symmetry and the Polyakov loop, we also include the possibility of a constant temporal background gauge field in
arxiv   +1 more source

Vital Staining of Bacteria by Sunset Yellow Pigment [PDF]

open access: yesPolish Journal of Microbiology, 2017
In this study, we describe a method for discriminating pathogenic bacteria with a dye. First, we determined that among several colours tested, the sunset yellow pigment easily coloured Escherichia coli bacteria yellow. Next, we demonstrated that E.
Peng Gao   +7 more
doaj   +1 more source

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