Results 41 to 50 of about 63,596 (104)

Reference Question Data Mining [PDF]

open access: yes, 2010
This exploratory study investigated the feasibility of using reference questions as an important tool in the construction of study guides, instructional outreach, and collection development at a small, four-year university in Lake Charles, Louisiana. The
Finnell, Joshua, Fontane, Walt
core   +1 more source

Theoretical analysis of hard x-ray generation by nonperturbative interaction of ultrashort light pulses with a metal

open access: yesStructural Dynamics, 2015
The interaction of intense femtosecond pulses with metals allows for generating ultrashort hard x-rays. In contrast to plasma theories, tunneling from the target into vacuum is introduced as electron generation step, followed by vacuum acceleration in ...
Jannick Weisshaupt   +4 more
doaj   +1 more source

Bis[μ-2-(phenylsulfanyl)anilido-κ2N:N]bis[bis(tetrahydrofuran-κO)lithium]

open access: yesIUCrData, 2016
The title compound, [Li2(C12H10NS)2(C4H8O)4], exists as a dimer in the solid state, with a central four-membered Li2N2 ring that is planar by crystallographic inversion symmetry. The Li atoms are bridged by the N atoms of two anilide ligands, and each Li
Velabo Mdluli   +2 more
doaj   +1 more source

1,5-Dichloro-1,1,2,2,3,3,4,4,5,5-decaphenylpentasilane

open access: yesIUCrData, 2016
The title compound, C60H50Cl2Si5, was obtained by a ring-opening reaction of decaphenylcyclopentasilane. The chain of silicon atoms adopts an all trans conformation [Si—Si—Si—Si torsion angles = −156.31 (5) and −161.02 (5)°]. One of the Cl atoms is in an
Felix Neumeyer   +3 more
doaj   +1 more source

Learn, discover, develop and create: University of Southampton guide to research [PDF]

open access: yes, 2009
The University of Southampton guide to research has been composed by the University’s academic librarians and is a gateway to resources listed by academic ...
opteam,
core  

Ethyl 3-amino-2-carbamoyl-4-(4-methoxyphenyl)-6-methylthieno[2,3-b]pyridine-5-carboxylate dimethyl sulfoxide monosolvate

open access: yesIUCrData, 2016
The conformation of the title molecule, C19H19N3O4S·C2H6OS, which crystallized as a DMSO solvate, is partially determined by an intramolecular N—H...O hydrogen bond, forming an S(6) loop. The thienopyridine bicyclic system is almost planar, with an r.m.s.
Etify A. Bakhite   +5 more
doaj   +1 more source

Exciton dynamics in perturbed vibronic molecular aggregates

open access: yesStructural Dynamics, 2016
A site specific perturbation of a photo-excited molecular aggregate can lead to a localization of excitonic energy. We investigate this localization dynamics for laser-prepared excited states.
C. Brüning   +4 more
doaj   +1 more source

4-[(4-Hydroxymethyl-2H-1,2,3-triazol-2-yl)methyl]-6,8-dimethyl-2H-chromen-2-one. Corrigendum

open access: yesIUCrData, 2017
In the paper by El-Khatatneh et al. [IUCrData (2016), 1, x161644], the scheme and chemical name in the title are corrected.
Nasseem El-Khatatneh   +4 more
doaj   +1 more source

Quantifying the impact of immune history and variant on SARS-CoV-2 viral kinetics and infection rebound: A retrospective cohort study

open access: yeseLife, 2022
Background: The combined impact of immunity and SARS-CoV-2 variants on viral kinetics during infections has been unclear. Methods: We characterized 1,280 infections from the National Basketball Association occupational health cohort identified between ...
J. Hay   +24 more
semanticscholar   +1 more source

Trifluoroacetic acid as excipient destabilizes melittin causing the selective aggregation of melittin within the centrin-melittin-trifluoroacetic acid complex

open access: yesStructural Dynamics, 2015
Trifluoroacetic acid (TFA) may be the cause of the bottleneck in high resolution structure determination for protein-peptide complexes. Fragment based drug design often involves the use of synthetic peptides which contain TFA (excipient). Our goal was to
Belinda Pastrana-Rios   +2 more
doaj   +1 more source

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