Results 31 to 40 of about 15,520,995 (329)

On $n$-norm preservers and the Aleksandrov conservative $n$-distance problem [PDF]

open access: yesAequationes mathematicae, 2015
The goal of this paper is to point out that the results obtained in the recent papers [7,8,10,11] can be seriously strengthened in the sense that we can significantly relax the assumptions of the main results so that we still get the same conclusions.
openaire   +5 more sources

Diacetonitrile[N,N′-bis(3,4,5-trimethoxybenzylidene)ethylenediamine]copper(I) perchlorate

open access: yesActa Crystallographica Section E, 2008
In the title compound, [Cu(C2H3N)2(C22H28N2O6)]ClO4, the Cu atom is coordinated by two N atoms from one bidentate Schiff base ligand and two N atoms from two acetonitrile groups. The Cu atom adopts a tetrahedral geometry. The Cu—N(ligand) distances
Aliakbar Dehno Khalaji   +2 more
doaj   +1 more source

Synthesis of a terminal Ce(iv) oxo complex by photolysis of a Ce(iii) nitrate complex. [PDF]

open access: yes, 2017
Reaction of [Ce(NR2)3] (R = SiMe3) with LiNO3 in THF, in the presence of 2,2,2-cryptand, results in the formation of the Ce(iii) "ate" complex, [Li(2,2,2-cryptand)][Ce(κ2-O2NO)(NR2)3] (1) in 38% yield. Photolysis of 1 at 380 nm affords [Li(2,2,2-cryptand)
Assefa, Mikiyas K   +2 more
core   +1 more source

mRNAs and lncRNAs intrinsically form secondary structures with short end-to-end distances

open access: yesNature Communications, 2018
The 5′ and 3′ termini of RNA play important roles in many cellular processes. Using Förster resonance energy transfer (FRET), we show that mRNAs and lncRNAs have an intrinsic propensity to fold in the absence of proteins into structures in which the 5 ...
Wan-Jung C. Lai   +8 more
semanticscholar   +1 more source

New distances to RAVE stars [PDF]

open access: yes, 2013
Probability density functions (pdfs) are determined from new stellar parameters for the distance moduli of stars for which the RAdial Velocity Experiment (RAVE) has obtained spectra with S/N >= 10.
J. Binney   +18 more
semanticscholar   +1 more source

(2,2′-Bipyridyl-κ2N,N′)bis(η5-pentamethylcyclopentadienyl)barium

open access: yesActa Crystallographica Section E, 2013
In the title compound, [Ba(C10H15)2(C10H8N2)], the Ba—N distances are 2.798 (3) and 2.886 (3) Å, and the Cp ring centroid distances to Ba2+ are 2.7291 (7) and 2.7192 (9) Å. The angle between the N atoms
Sergio S. Rozenel, Daniel Kazhdan
doaj   +1 more source

Antiproton production in $pp, dp$ and $dd$ collisions close to threshold [PDF]

open access: yes, 1996
The production of antiprotons in $pp$ collisions is investigated close to threshold where experimental data about the total cross section are not available.
Baldini   +29 more
core   +2 more sources

4-(2-Nitrobenzenesulfonamido)pyridinium nitrate

open access: yesActa Crystallographica Section E, 2008
There are two molecules in the asymmetric unit of the title compound, C11H10N3O4S+·NO3−. All bond distances have normal values. The C—N bond distances in the sulfonamide group [1.389 (3) and 1.382 (3) Å] may ...
Qi-Fei Yu, Liang Zhao
doaj   +1 more source

Energy-Sensitive and "Classical-like" Distances Between Quantum States [PDF]

open access: yes, 1998
We introduce the concept of the ``polarized'' distance, which distinguishes the orthogonal states with different energies. We also give new inequalities for the known Hilbert-Schmidt distance between neighbouring states and express this distance in terms
A Wünsche   +29 more
core   +2 more sources

(2,2-Bipyridyl)bis(η5-pentamethylcyclopentadienyl)strontium(II)

open access: yesActa Crystallographica Section E, 2008
In the title compound, [Sr(C10H15)2(C10H8N2)], the Sr—N distances are 2.624 (3) and 2.676 (3) Å, the Sr...Cp ring centroid distances are 2.571 and 2.561 Å and the N—C—C—N torsion angle in the ...
Sergio Rozenel   +4 more
doaj   +1 more source

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