5 research outputs found
Trifluoromethanesulfenyl acetate, CF3S-OC(O)CH3, and trifluoromethanesulfenyl trifluoroacetate, CF3S-OC(O)CF3: Unexpected conformational properties
Structural and conformational properties of two sulfenyl derivatives, trifluoromethanesulfenyl acetate, CF3S-OC(O)CH3 (1), and trifluoromethanesulfenyl trifluoroacetate, CF3S-OC(O)CF3 (2), were determined by gas electron diffraction, vibrational spectroscopy, in particular with IR (matrix) spectroscopy, which includes photochemical studies, and by quantum chemical calculations. Both compounds exist in the gas phase as a mixture of two conformera, with the prevailing component possessing a gauche structure around the S-O bond. The minor form, 15(5)% in 1 and 11(5)% in 2 according to IR(matrix) spectra, possesses an unexpected trans structure around the S-O bond. The C=O bond of the acetyl group is oriented syn with respect to the S-O bond in both conformers. UV-visible broad band irradiation of 1 and 2 isolated in inert gas matrixes causes various changes to occur. Conformational randomization clearly takes place in 2 with simultaneous formation of CF 3SCF3. For 1 the only reaction channel detected leads to the formation of CH3SCF3 with the consequent extrusion of CO2. Quantum chemical calculations (B3LYP/6-31G* and MP2 with 6-31G* and 6-311G(2df,pd) basis sets) confirm the existence of a stable trans conformer. The calculations reproduce the conformational properties for both compounds qualitatively correct with the exception of the B3LYP method for compound 2 which predicts the trans form to be prevailing, in contrast to the experiment.Fil: Ulic, Sonia Elizabeth. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - La Plata. Centro de QuĂmica InorgĂĄnica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de QuĂmica InorgĂĄnica "Dr. Pedro J. Aymonino"; ArgentinaFil: Kosma, Areti. Eberhard Karls UniversitĂ€t TĂŒbingen; AlemaniaFil: Leibold, Christiane. Eberhard Karls UniversitĂ€t TĂŒbingen; AlemaniaFil: Della Vedova, Carlos Omar. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - La Plata. Centro de QuĂmica InorgĂĄnica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de QuĂmica InorgĂĄnica "Dr. Pedro J. Aymonino"; ArgentinaFil: Willner, Helge. Wuppertal Institut FĂŒr Klima, Umwelt, Energie Ggmbh.; AlemaniaFil: Oberhammer, Heinz. Eberhard Karls UniversitĂ€t TĂŒbingen; Alemani
Consumersâ Trust in Greek Traditional Foods in the Post COVID-19 Era
We are entering a new, unprecedented global economic and social era following the COVID-19 pandemic, in which there will be opportunities and threats for the goods and services provided. Traditional foods (TFs) could have their chances in the new food chain which will be developed, as long as they become the food of choice for the consumers of the future. This paper investigates consumersâ trust in Greek TFs, and northwest Greek TFs, in order to assess their potential consumption in the new economy. Trust was tested using the variables of safety, healthiness, sustainability, authenticity and taste, assessing consumersâ confidence and satisfaction with the TFs, their raw materials, and the technologies used for their production. A self-response questionnaire survey was carried out in May and June 2021 on a sample of 548 participants through the Google platform. In order to analyze the data, basic descriptive statistical tools were used, combined with crosstabs and chi-square tests. The results show that the participants trust the Greek TFs because they âstrongly agreeâ by an average of 20%, and âagreeâ by an average of 50% that they are safe, healthy, sustainable, authentic and tasty. A similar pattern was recorded for the regional northwest Greek TFs as well. These results indicate that TFs could be the food of choice because they bear consumersâ trust in the coming ânew normalityâ, where trust will be a major factor of choice for the purchase of goods and services.info:eu-repo/semantics/publishedVersio
Consumersâ Trust in Greek Traditional Foods in the Post COVID-19 Era
We are entering a new, unprecedented global economic and social era following the COVID-19 pandemic, in which there will be opportunities and threats for the goods and services provided. Traditional foods (TFs) could have their chances in the new food chain which will be developed, as long as they become the food of choice for the consumers of the future. This paper investigates consumersâ trust in Greek TFs, and northwest Greek TFs, in order to assess their potential consumption in the new economy. Trust was tested using the variables of safety, healthiness, sustainability, authenticity and taste, assessing consumersâ confidence and satisfaction with the TFs, their raw materials, and the technologies used for their production. A self-response questionnaire survey was carried out in May and June 2021 on a sample of 548 participants through the Google platform. In order to analyze the data, basic descriptive statistical tools were used, combined with crosstabs and chi-square tests. The results show that the participants trust the Greek TFs because they âstrongly agreeâ by an average of 20%, and âagreeâ by an average of 50% that they are safe, healthy, sustainable, authentic and tasty. A similar pattern was recorded for the regional northwest Greek TFs as well. These results indicate that TFs could be the food of choice because they bear consumersâ trust in the coming ânew normalityâ, where trust will be a major factor of choice for the purchase of goods and services
Array-CGH revealed one of the smallest 16q21q22.1 microdeletions in a female patient with psychomotor retardation
A 28-month-old girl with dysmorphic craniofacial features, microcephaly,
hypotonia, psychomotor retardation, failure to thrive and
gastrointestinal problems was referred for clinical evaluation.
Array-CGH analysis revealed one of the smallest de novo microdeletions
on chromosome 16q21q22.1, 2.03 Mb in size. Advanced molecular analysis
contributes to more precise genotype-phenotype correlation and accurate
definition of the breakpoints in the deleted/duplicated regions. (C)
2012 European Paediatric Neurology Society. Published by Elsevier Ltd.
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