Results 11 to 20 of about 671,192 (298)

δ-Small Submodules and δ-Supplemented Modules

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2007
Let R be a ring and M a right R-module. It is shown that (1) δ(M) is Noetherian if and only if M satisfies ACC on δ-small submodules; (2) δ(M) is Artinian if and only if M satisfies DCC on δ-small submodules; (3) M is Artinian if and only if M is an ...
Yongduo Wang
doaj   +2 more sources

Temperature regulates fatty acid desaturase and elongase at the transcriptional level and modulates the fatty acid profile in the early stage of the common carp (Cyprinus carpio)

open access: yesCzech Journal of Animal Science, 2023
This study explored the regulatory effect of temperature stress on fatty acid biosynthesis in the early stage of common carp (Cyprinus carpio) based on Δ6-fatty acids desaturase (Δ6FAD) and elongase-5 (ELOVL5) gene expression and fatty acid composition ...
Hong-Tao Ren   +3 more
doaj   +1 more source

Calibrated high-precision 17O-excess measurements using cavity ring-down spectroscopy with laser-current-tuned cavity resonance [PDF]

open access: yesAtmospheric Measurement Techniques, 2014
High-precision analysis of the 17O / 16O isotope ratio in water and water vapor is of interest in hydrological, paleoclimate, and atmospheric science applications. Of specific interest is the parameter 17O excess (Δ17O), a measure of the
E. J. Steig   +7 more
doaj   +1 more source

Effects of different dietary lipid sources on fatty acid composition and gene expression in common carp

open access: yesCzech Journal of Animal Science, 2020
The effects of fatty acid composition in artificial feed on the change in the fatty acid composition of carp muscles and the relationship between Δ6-Fad and Elovl5 genes participating in the regulation of fatty acid synthesis were studied. Juveniles were
Hong-Tao Ren   +3 more
doaj   +1 more source

Υγιή αδέρφια παιδιών με καρκίνο

open access: yesΨυχολογία: το Περιοδικό της Ελληνικής Ψυχολογικής Εταιρείας, 2020
Η κατανόηση του τρόπου με τον οποίο τα υγιή αδέρφια αντιλαμβάνονται και αναπαριστούν την υγεία και την αρρώστια ως καταστάσεις που επηρεάζουν ολόκληρη την οικογένεια αποτέλεσε τον βασικό άξονα αυτής της μελέτης.
Κ. Καραμπέλα   +2 more
doaj   +1 more source

Updating the occurrence of crassulacean acid metabolism (CAM) in the genus Clusia through carbon isotope analysis of species from Colombia

open access: yesPhotosynthetica, 2022
Clusia is a widely distributed neotropical genus with 321 currently described species. This remarkable genus is the only one known to contain trees sensu stricto with CAM photosynthesis. To survey the occurrence of CAM in Clusia species from Colombia, we
P. PACHON, K. WINTER, E. LASSO
doaj   +1 more source

De Sitter horizons & holographic liquids

open access: yesJournal of High Energy Physics, 2019
We explore asymptotically AdS2 solutions of a particular two-dimensional dilaton-gravity theory. In the deep interior, these solutions flow to the cosmological horizon of dS2.
Dionysios Anninos   +2 more
doaj   +1 more source

Intermediate temperature SOFC single cell test using Nd1.95NiO4+δ as cathode [PDF]

open access: yes, 2007
This work deals with SOFC single cell tests using neodymium nickelate Nd1.95NiO4+δ as cathode material. This MIEC oxide exhibits high values of both surface exchange coefficient (k) and oxygen diffusion coefficient (D*), as well as high electronic ...
Ansart, Florence   +11 more
core   +1 more source

Internal friction investigation of phase transformation in nearly stoichiometric LaMnO3+δ [PDF]

open access: yes, 2005
Rhombohedral LaMnO3+δ powders, prepared by two different soft chemistry routes (co-precipitation and hydrothermal synthesis), are sintered at 1400 °C for 2 h in air. Measurements of internal friction Q−1(T) and shear modulus G(T), at low frequencies from
Calmet, Christophe   +7 more
core   +1 more source

Preparation of Optically Active δ-Tri- and δ-Tetradecalactones by a Combination of Novozym 435-catalyzed Enantioselective Methanolysis and Amidation [PDF]

open access: yes, 2015
A combination of Novozym 435-catalyzed methanolysis and amidation using racemic N-methyl-5-acetoxytridecan- and tetradecanamides as a substrate proceeded in good enantioselectivity to afford the corresponding (R)-N-methyl-5-acetoxyalkanamides, (S)-N ...
Shimotori, Yasutaka   +3 more
core   +1 more source

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