A comparison of P4 activations mediated by low-valent β-diketiminato (L) cobalt complexes is presented. The formal Co0 source [K2 (L3 Co)2 (μ2 :η1 ,η1 -N2 )] (1) reacts with P4 to form a mixture of the monoanionic complexes [K(thf)6 ][(L3 Co)2 (μ2 :η4 ,η4 -P4 )] (2) and [K(thf)6 ][(L3 Co)2 (μ2 :η3 ,η3 -P3 )] (3). The analogue CoI precursor [L3 Co(tol)] (4 a), however, selectively yields the cor...

The audio signal from five professional baritones was analyzed by means of spectrum analysis. Each subject sang syllables [pae] and [pa] from loudest to softest phonation at fundamental frequencies representing 25%, 50%, and 75% of his total range. Ten subglottal pressures, equidistantly spaced between highest and lowest, were selected for analysis along with the corresponding production of the...

We recently discovered pathways of lumisterol (L3) activation by CYP11A1 and CYP27A1, with resulting CYP11A1-derived hydroxymetabolites being detectable in the human serum epidermis. hydroxylumisterols induced keratinocyte differentiation photoprotective actions against UVB. In follow-up studies we detected hydroxyproducts CYP27A1 action on L3, 25(OH)L3, 25R27(OH)L3 25S27(OH)L3, epidermal kerat...

Die Studie hat zum Zweck, die Verarbeitung von drei gleichzeitig aktivierten Sprachen zu erforschen. Es werden zwei Typen Aufgaben benutzt: Identifikation und Korrektur auf der L2 basierten Fehlern in L3, Übersetzung Richtungen: L3–L1, L3–L2 L2–L3. Wie Ergebnisse zeigen, nahmen alle an teil eine relativ wichtige Rolle spielte „Assoziation Fremden“: deutschen Bedeutungen wörtlich übersetzten Idi...