Social and Psychological Adjustments of First Generation Polish Immigrants to Australia

The primary aim of this research was to find predictors of psycho-social adjustment of Polish immigrants to Sydney, Australia. There were two sets of independent variables considered: i) personal characteristics, including: intelligence, extraversion, neuroticism, style of attribution and self-acceptance and ii) demographic information, consisted of: age, gender, length of residence, marital status, number of children, educational level, yearly income, immigration status (dependent vs. independent immigration) and residential status. The dependent variables were social (adaptation and assimilation) and psychological adjustment. The hypotheses tested in the study were that each of these personal and demographic characteristics would be associated with adaptation and/or assimilation, and psychological well-being. The two samples (both studies) were composed of more than 200 first generation Polish immigrants who arrived in Australia after 1980. No significant gender differences were found. The internal consistency and principal components structure of Adaptation and Assimilation were examined, and the measures were refined. There were employed standard measurements (i.e. GHQ, BDI, BAI, EPI, ASQ, Raven Matrices and WAIS-Vocabulary) and newly developed measures (i.e. the Social Adjustment Scale and the Self-Acceptance Questionnaire). The general results suggested that psycho-social adjustment was best predicted by three pre-arrival characteristics (extraversion, education and self-acceptance), and post-arrival employment status and length of residence. There were, however, some differences in regard to the particular aspects of psycho-social adjustment. Better adaptation was meaningfully related to employment (income) and education in Study 1, and self-acceptance, employment and extraversion in Study 2; better assimilation seemed to be significantly predicted by education, age of arrival and length of residence (Study 1), and self-acceptance, extraversion, education and age of arrival (Study 2). Psychological [mal]adjustment was best indicated by globality and stability in attributing negative events (Study 1), lower self-acceptance and lack of employment status (Study 2)

Chemo-enzymatic synthesis of chiral fluorine-containing building blocks

Contains fulltext : 58912.pdf (publisher's version ) (Open Access)Two complementary strategies for the synthesis of optically active fluorine-containing building blocks have been probed. The first strategy involves either the enzymatic resolution of fluorinated alpha,alpha-disubstituted -alpha-amino acid amides, or the asymmetric hydrogenation of fluorinated clehydroamino acids. The second strategy involves the transition metal-catalyzed introduction of fluorine-containing substituents onto olefin- or acetylene-containing alpha-H-alpha-amino acids. These amino acids in turn are made optically active by enzymatic resolution of the corresponding amides

Characterization of glycosyl dioxolenium ions and their role in glycosylation reactions

Controlling the chemical glycosylation reaction remains the major challenge in the synthesis of oligosaccharides. Though 1,2-trans glycosidic linkages can be installed using neighboring group participation, the construction of 1,2-cis linkages is difficult and has no general solution. Long-range participation (LRP) by distal acyl groups may steer the stereoselectivity, but contradictory results have been reported on the role and strength of this stereoelectronic effect. It has been exceedingly difficult to study the bridging dioxolenium ion intermediates because of their high reactivity and fleeting nature. Here we report an integrated approach, using infrared ion spectroscopy, DFT computations, and a systematic series of glycosylation reactions to probe these ions in detail. Our study reveals how distal acyl groups can play a decisive role in shaping the stereochemical outcome of a glycosylation reaction, and opens new avenues to exploit these species in the assembly of oligosaccharides and glycoconjugates to fuel biological research.Bio-organic Synthesi

Ruthenium-catalyzed ring closing olefin metathesis of non-natural alpha-amino acids

Contains fulltext : 26301.PDF (publisher's version ) (Open Access

Synthesis and biological activity of novel platencin derivatives

Contains fulltext : 92392.pdf (publisher's version ) (Open Access)18 p

Synthesis of cyclic hydrazines and a-hydrazino acid derivatives via N-acylhydrazonium ions

Contains fulltext : 27467.pdf (publisher's version ) (Open Access)Dissertation Universiteit van Amsterdam, 1993191 p

BIOCONJUGATION How to pick a single amine?

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