Perceptual Discrepancy Profiles of Social Competence and Their Interrelations With Depressive Symptoms Among Early Adolescents.

We examined the perceptual discrepancy profiles between self- and peers, and self- and teacher evaluations of adolescents' social competence (SC) and the interrelations of these profiles with self-reported depressive symptoms. The participants were 390 Finnish lower secondary school pupils. Latent profile analysis revealed five classes of discrepancy profiles; adolescents with congruent perceptions, quite congruent perceptions, and positively discrepant perceptions of SC reported lower scores of depressive symptoms, whereas those with negatively and extremely positively discrepant perceptions of SC reported the highest scores of depressive symptoms.

Structures of micelles formed by synthetic alkyl glycosides with unsaturated alkyl chains.

Three new alkyl glycosides with similar molecular structures (oleyl and oleoyl alkyl chains and various head groups: disaccharide, trisaccharide and disaccharide with an additional amidoethoxy spacer) were synthesized and their supramolecular structure in aqueous solution was investigated. Small angle neutron scattering, surface tension measurement and the contact preparation method were applied to get molecular structure-property relationships. Although the chemical structures differ only in small details, their CMC values, lyotropic phase behaviour, surface area per surfactant molecule in the micelle and at the liquid-air interface, and the size and shape of the micelles are very different.