The cell wall peptidoglycan of Bacillus megaterium KM. I. Studies on the stereochemistry of alpha, alpha'-diaminopimelic acid

in Biochemistry (1967), 6(8), 2598-2607

Mechanisms of enzymatic bacteriaolysis. Cell walls of bacteri are solubilized by action of either specific carbohydrases or specific peptidases

in Science (1967), 156(772), 213-221

Abondances anormales d'éléments dans les étoiles Ap

in Annales d'Astrophysique (1967), 30

From the data in Babcock's catalogue of magnetic stars and the data compiled by Bertaud, the proportion of Ap stars showing striking overabundancies of Si, Cr, Mn, Sr and Eu is deduced in terms of the ... [more ▼]

From the data in Babcock's catalogue of magnetic stars and the data compiled by Bertaud, the proportion of Ap stars showing striking overabundancies of Si, Cr, Mn, Sr and Eu is deduced in terms of the spectral type. However this correlation with the spectral class originates at least as much from variations of the visibility of the lines with temperature than from a real dependance of the abundance anomalies on the spectral type. The abundance factors in the Ap stars in regard to the normal ones increase in the average more or less exponentially with the atomic number or the atomic mass. [less ▲]

The emission lines in the ultraviolet region 3140-3500A of CH Cygni, and related problems

in Astrophysical Letters & Communications (1967), 1

The M6 semi-regular variable CH Cygni had an outburst in June 1967. The emission lines of the ultraviolet region λ< 3500 Å are described. General considerations on the importance of this region are ... [more ▼]

The M6 semi-regular variable CH Cygni had an outburst in June 1967. The emission lines of the ultraviolet region λ< 3500 Å are described. General considerations on the importance of this region are outlined. [less ▲]

Per una pedagogia della divergenza

in Scuola e Città (1967), 3

Sur une forme monoclinique de l'ilvaite

in Annales de la Société Géologique de Belgique (1967), 91

Anthropologie culturelle et éducation comparée

in General education in a changing world : containing papers read before the Society at the second General Meeting Berlin 1965 (1967)

Comparaison du rendement de l'enseignement des mathématiques dans douze pays

in Education : tribune libre d'information et de discussion pédagogiques (1967), (106), 61-72

Pour une nouvelle formation des maîtresses de jardin d'enfants

in Journées internationales de l'O.M.E.P. : assemblée mondiale de l'O.M.E.P., Paris-Unesco, 18-23 juillet 1966 (1967)

La pédagogie expérimentale en Belgique

in International Review of Education (1967), 13(3), 298-305