A cross-sectional study using self-defining memories to explore personal identity throughout adulthood.

Little research has examined changes in personal identity over different periods of adult development. The aim of the present cross-sectional study was to target these changes through the characterization of the main dimensions in self-defining memories (SDMs; thematic content, specificity, integrative meaning, tension, contamination/redemption, and emotion) and their interactions. Our final sample was composed of 652 healthy French adults aged from 18 to 97 years, divided into four age groups: young adults ( = 163, = 23.

Exploring Characteristics of Self-Defining Memories in Older Adults.

The aim of this descriptive study was to investigate the Self-Defining Memories (SDMs) in a large sample of 181 older adults (65-90 years; mean age = 73.0 years) and to target the relationships between their different dimensions. The sampling method was nonprobabilistic, based on voluntary participation.

How do "Young-old" Adults Project their Self? A Study of Self-defining Future Projections in Normal Ageing.

Background: Self-defining future projections (SDFP) are mental representations of plausible and highly significant future events that provide core information of one's understanding of self.

Objective: We explored SDFPs in a large sample of older adults and aimed to target the interrelations between the main dimensions of SDFPs. Moreover, correlations between these dimensions and clinical and cognitive variables were examined.

Spectroscopic and theoretical investigations of phenolic acids in white wines.

Model solutions of white wines containing phenolic acids have been investigated by means of UV-vis, laser induced fluorescence and Raman spectroscopic techniques. In order to interpret the spectra, density functional theory calculations of phenolic acids have been performed. This work demonstrates that only hydroxynamic acids are in resonance with a laser excitation line with 325nm wavelength and are therefore at the origin of the strong enhancement of the Raman light scattering.

Density functional theory calculations and vibrational circular dichroism of aromatic foldamers.

Ab initio calculations together with vibrational circular dichroism (VCD) have been used for studying the conformations of a quinoline-derived oligoamide bearing a terminal chiral residue. Three helically folded conformers of the dimer, trimer, and tetramer forms of the oligomer were optimized at the density functional theory (DFT) level using the B3LYP functional and the 6-31G* basis set. For each form, the three conformers differ in their helical handedness and in the conformation of the chiral end group.

Theoretical study of free-radical-mediated 5-exo-trig cyclizations of chiral 3-substituted hepta-1,6-dienes.

Free radical-mediated 5-exo-trig cyclizations of hepta-1,6-dienes incorporating allylsilane, alkyl and alkoxy analogues are modeled using correlated ab initio calculations. The structural, electronic and thermochemical properties of reactants, products and transition species involved in the key step of the radical cyclization process are analyzed and compared with those predicted by the Beckwith-Houk transition models. The product ratios are calculated from the Gibbs energy differences between the possible transition structures following the Curtin-Hammet principle and compared to experimental values.