Results 111 to 120 of about 3,057,322 (296)
Remote Sensing, 2018 Novel hyperspectral indices, which are the first derivative normalized difference nitrogen index (FD-NDNI) and the first derivative ratio nitrogen vegetation index (FD-SRNI), were developed to estimate the leaf nitrogen content (LNC) of wheat.
Liang Liang +6 more
doaj +1 more source
Local derivations on associative and Jordan matrix algebras [PDF]
arXiv, 2019 In the present paper we prove that every additive (not necessarily homogenous) local inner derivation on the algebra of matrices over an arbitrary field is an inner derivation, and every local inner derivation on the ring of matrices over a finite ring generated by the identity element or the ring of integers is an inner derivation.
arxiv
LXXXIII.—The synthetical formation of bridged rings. Part I. Some derivatives of dicyclopentane [PDF]
, 1901 W. H. Perkin, Jocelyn Field Thorpe
openalex +1 more source
Autophagy in cancer and protein conformational disorders
FEBS Letters, EarlyView.Autophagy plays a crucial role in numerous biological processes, including protein and organelle quality control, development, immunity, and metabolism. Hence, dysregulation or mutations in autophagy‐related genes have been implicated in a wide range of human diseases.
Sergio Attanasio
wiley +1 more source
Characterizations of 2-local derivations and local Lie derivations on some algebras [PDF]
arXiv, 2016 We prove that every 2-local derivation from the algebra $M_n(\mathcal{A})(n>2)$ into its bimodule $M_n(\mathcal{M})$ is a derivation, where $\mathcal{A}$ is a unital Banach algebra and $\mathcal{M}$ is a unital $\mathcal{A}$-bimodule such that each Jordan derivation from $\mathcal{A}$ into $\mathcal{M}$ is an inner derivation, and that every 2-local ...
arxiv
FEBS Letters, EarlyView.The protonated form of butyrate, as well as other short‐chain fatty acids (SCFAs), is membrane permeable. In acidic extracellular environments, this can lead to intracellular accumulation of SCFAs and cytosolic acidification. This phenomenon will be particularly relevant in acidic environments such as the large intestine or tumor microenvironments ...
Muwei Jiang +2 more
wiley +1 more source
Local derivations on Solvable Lie algebras [PDF]
arXiv, 2018 We show that in the class of solvable Lie algebras there exist algebras which admit local derivations which are not ordinary derivation and also algebras for which every local derivation is a derivation. We found necessary and sufficient conditions under which any local derivation of solvable Lie algebras with abelian nilradical and one-dimensional ...
arxiv
A NOTE ON UREIDO DERIVATIVES ISOLATED AS BY-PRODUCTS IN AMINO ACID SYNTHESIS [PDF]
, 1957 P. D. Burland, John D. Christian
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A stepwise emergence of evolution in the RNA world
FEBS Letters, EarlyView.How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley +1 more source
CLXXXI.—The interaction of metals of the aluminium group and organic halogen derivatives [PDF]
, 1908 James Frederick Spencer +1 more
openalex +1 more source