Dr. Ph. Georges Schneidermann : die Controverse des Ludovicus Cappellus mit den Buxtorfen, über das Alter der hebräischen Punctation

Joseph Derenbourg

Drosophila valois encodes a divergent WD protein that is required for Vasa localization and Oskar protein accumulation

valois (vls) was identified as a posterior group gene in the initial screens for Drosophila maternal-effect lethal mutations. Despite its early genetic identification, it has not been characterized at the molecular level until now. We show that vls encodes a divergent WD domain protein and that the three available EMS-induced point mutations cause premature stop codons in the vls ORF. We have generated a null allele that has a stronger phenotype than the EMS mutants. The vlsnull mutant shows that vls+ is required for high levels of Oskar protein to accumulate during oogenesis, for normal posterior localization of Oskar in later stages of oogenesis and for posterior localization of the Vasa protein during the entire process of pole plasm assembly. There is no evidence for vls being dependent on an upstream factor of the posterior pathway, suggesting that Valois protein (Vls) instead acts as a co-factor in the process. Based on the structure of Vls, the function of similar proteins in different systems and our phenotypic analysis, it seems likely that vls may promote posterior patterning by facilitating interactions between different molecules.

Georges Rodenbach [Illustration] : (Porträt)

Lucien Levy-Dhurmer

Use of Otolith Strontium:Calcium Ratios for Hindcasting Larval Cod Gadus Morhua Distributions Relative to Water Masses on Georges Bank

The concentration ratios of strontium to calcium in laboratory-reared larval cod otoliths are shown to be related to the water temperature (T) at the time of otolith precipitation. This relationship is curvilinear, and is best described by a simple exponential equation of the form (Sr/Ca x 1000 = a exp(-T/b). We show that when Sr/Ca elemental analyses are related to the daily growth increments in the larval otoliths, relative temperature histories of individual field-caught larvae can be reconstructed from the egg stage to the time of capture. We present preliminary examples of how such reconstructed temperature histories of Atlantic cod Gadus morhua larvae, collected on Georges Bank during April and May 1993, may be interpreted in relation to the broad-scale larval distributions and the hydrography of the Bank.

Georges Duhamel: Spiegel der Zukunft [Rezension]

N. H.

Clemenza di Valois

musica del Vincenzo Gabussi

Georges Bizet, Brustbild

Signatur des Originals: S 36/F00161

Georges Kastner, Kniestück

Signatur des Originals: S 36/F00917

Georges Bizet, Brustbild

Signatur des Originals: S 36/F03054

Georges Bizet, Brustbild

Signatur des Originals: S 36/F03055

Martha Bommer als Carmen, Rollenbild, in: Georges Bizet: Carmen

Signatur des Originals: S 36/F03104

Richard Breitenfeld als Escamillo, Rollenbild, Kniestück, in: Georges Bizet: Carmen

Signatur des Originals: S 36/F03180

Richard Breitenfeld als Escamillo, Rollenbild, Ganzfigurbildnis, in: Georges Bizet: Carmen

Signatur des Originals: S 36/F03181

Robert Burg als Escamillo, Rollenbild, Hüftbild, in: Georges Bizet: Carmen

Signatur des Originals: S 36/F03273