Results 1 to 10 of about 111,536 (263)

Photochemical Studies in Flash Photolysis. I. Photolysis of Acetone [PDF]

open access: green, 1957
The high-intensity flash photolysis of acetone was investigated using an exploding wire as a light source. Experiments were conducted with the unfiltered light of the flash, containing light in the near as well as in the far ultraviolet region of the ...
Marcus, R. A., Oster, Gisela K.
core   +3 more sources

Is Amino-Acid Homochirality Due To Asymmetric Photolysis In Space? [PDF]

open access: yesarXiv, 1999
Amino acids occurring in proteins are, with rare exceptions, exclusively of the L-configuration. Among the many scenarios put forward to explain the origin of this chiral homogeneity (i.e., homochirality), one involves the asymmetric photolysis of amino acids present in space, triggered by circularly polarized UV radiation.
Cerf, C., Jorissen, A.
arxiv   +3 more sources

A New Approach toward Transition State Spectroscopy [PDF]

open access: yesFaraday Discussions, 163, 33 (2013), 2013
Chirped-Pulse millimetre-Wave (CPmmW) rotational spectroscopy provides a new class of information about photolysis transition state(s). Measured intensities in rotational spectra determine species-isomer-vibrational populations, provided that rotational populations can be thermalized.
Ciuba, Monika A.   +9 more
arxiv   +3 more sources

Photolysis of Diborane at 1849 Å [PDF]

open access: green, 1962
The photolysis of diborane at 1849 Å has been studied in a specially constructed, internal‐type mercury‐vapor lamp. The products have been found to be H_2, B_(4)H_(10), B_(5)H_(11), and, at low pressures, a —BH— polymer.
Kreye, W. C., Marcus, R. A.
core   +3 more sources

Photolysis of fumonisin B1 under simulated solar irradiation in aquatic environment [PDF]

open access: yesZbornik Matice Srpske za Prirodne Nauke, 2023
Given that the presence of fumonisin as a potentially carcinogenic com­pound in the aqueous medium was confirmed, it is very important to find a method for its effective removal. In this study, the degradation efficiency of fumonisins in aqueous
Jevtić Ivana D.   +3 more
doaj   +1 more source

Modeling of photolysis rates over Europe: impact on chemical gaseous species and aerosols [PDF]

open access: yesAtmospheric Chemistry and Physics, 2011
This paper evaluates the impact of photolysis rate calculation on simulated European air composition and air quality. In particular, the impact of the cloud parametrisation and the impact of aerosols on photolysis rates are analysed. Photolysis rates are
E. Real, K. Sartelet
doaj   +1 more source

Comparison of the RADM2 and RACM chemical mechanisms in O3 simulations: effect of the photolysis rate constant

open access: yesScientific Reports, 2021
Since the photolysis rate plays an important role in any photoreaction leading to compound sink and radical formation/destruction and eventually O3 formation, its impact on the simulated O3 concentration was evaluated in the present study. Both RADM2 and
Chien-Hung Chen   +3 more
doaj   +1 more source

A single cell death is disruptive to spontaneous Ca2+ activity in astrocytes

open access: yesFrontiers in Cellular Neuroscience, 2022
Astrocytes in the brain are rapidly recruited to sites of injury where they phagocytose damaged material and take up neurotransmitters and ions to avoid the spreading of damaging molecules.
Veronica Gomez-Godinez   +8 more
doaj   +1 more source

In situ investigation the photolysis of the PAHs adsorbed on mangrove leaf surfaces by synchronous solid surface fluorimetry. [PDF]

open access: yesPLoS ONE, 2014
An established synchronous solid surface fluorimetry (S-SSF) was utilized for in situ study the photolysis processes of anthracene (An) and pyrene (Py) adsorbed on the leaf surfaces of Kandelia obovata seedlings (Ko) and Aegiceras corniculata (L.) Blanco
Ping Wang, Tun-Hua Wu, Yong Zhang
doaj   +1 more source

The photolysis of α-hydroperoxycarbonyls [PDF]

open access: yesPhysical Chemistry Chemical Physics, 2018
The atmospheric photolysis of α-hydroperoxycarbonyls is predicted to yield mainly enols and singlet O2; the atmospheric implications are discussed.
Zhen Liu   +4 more
openaire   +3 more sources

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