Results 11 to 20 of about 198,276 (171)

Le paysage existe-t-il dans les pays du Sud ? Pistes de recherches sur l’institutionnalisation du paysage [PDF]

open access: yesVertigO, 2015
Countless studies have been done in Western countries on landscape, be they about its materiality, social representations, or the public policies to which it is the object.
Evelyne Gauché
doaj   +5 more sources

Can acyclic conformational control be achieved via a sulfur-fluorine gauche effect? [PDF]

open access: yes, 2015
The gauche conformation of the 1,2-difluoroethane motif is known to involve stabilising hyperconjugative interactions between donor (bonding, σC-H) and acceptor (antibonding, σ*C-F) orbitals.
Daniliuc, C   +4 more
core   +1 more source

Conformational Preferences of 3-(Dimethylazinoyl)propanoic Acid as a Function of pH and Solvent; Intermolecular versus Intramolecular Hydrogen Bonding [PDF]

open access: yes, 2009
The conformational equilibrium of 3-(dimethylazinoyl)propanoic acid (DMAPA, azinoyl = N^+(O^−) has a weak pH-dependence in D_2O, with a slight preference for trans in alkaline solutions.
Alley, Olivia J.   +5 more
core   +2 more sources

The fluorine-NHC gauche effect: a structural and computational study [PDF]

open access: yes, 2013
Herein, we report the synthesis and X-ray structural analysis of a collection of fluorinated metal N-heterocyclic carbenes (Ag, Au, Pd, Rh, Ir) and their precursor salts.
Gilmour, R.   +4 more
core   +1 more source

Three-phase characterization of uniaxially stretched linear low density polyethylene [PDF]

open access: yes, 2011
This study comprises a detailed morphological study of cold-drawn polyethylene monofilaments by Raman spectroscopy, differential scanning calorimetry (DSC) and X-ray measurements.
Kiekens, Paul   +2 more
core   +3 more sources

4,4´-(Hexane-1,6-diyldioxy)dianiline [PDF]

open access: yes, 2009
The complete molecule of the title compound, C18H24N2O2, is generated by a crystallographic inversion centre. The torsion angles in the hexa­methyl­ene chain are consistent with an anti­periplanar conformation, whereas the conformation of the O—CH2—CH2 ...
Muhammad Saif Ullah Khan   +10 more
core   +1 more source

Theoretical and experimental study of a new thiosulfonate derivative: Methyl trifluoromethanethiosulfonate, CF3SO2SCH3. Conformational transferability in CX3SO2S-R compounds [PDF]

open access: yes, 2017
Methyl trifluoromethanethiosulfonate, CF3SO2SCH3, was synthesized and characterized by 13C NMR, 19F NMR, and vibrational spectroscopy. This structural study was supported by MP2 and DFT (B3LYP and MPW1PW91) calculations, which revealed a strong ...
Ben Altabef, Aída   +5 more
core   +1 more source

Repenser la gauche américaine

open access: yesCahiers d’histoire, 2009
Des Wobblies au Black Power, l’histoire du radicalisme politique aux États-Unis est probablement l’une des parties de l’histoire américaine les mieux connues en France. Mais comment insérer ces contestations à la trame de l’histoire américaine ? Dans cet
Michael Kazin
doaj   +1 more source

L'héroïsation. Représenter, nécessité du Rassemblement populaire

open access: yesCahiers d’histoire, 2008
Le Front populaire est aussi un temps d’héroïsation des leaders politiques, parés de vertus charismatiques. L’analyse de ces processus d’héroïsation pointe le reclassement de traditions avérées du mouvement ouvrier. Le Front populaire paraît alors autant
Vincent Chambarlhac
doaj   +1 more source

The central role of self-esteem in the quality of life of patients with mental disorders

open access: yesScientific Reports, 2022
In psychiatry, recent years have seen a change of focus from a clinician- to a patient-centered perspective that emphasizes quality of life as a treatment target.
Guillaume Barbalat   +11 more
doaj   +1 more source

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