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See detailMass Spectrometric determination of the Electronaffinities of Radicals.
Locht, Robert ULg; Momigny, Jacques

in Chemical Physics Letters (1970), 6(4), 273-276

By mass spectrometric study of the appearance of C2-, CH- and C2H- from CH4, C2H2, C2H4, C2H3X (X=F, Cl) the following electronaffinities have been determined: EA(CH)=(2.6+/-0.3) eV, EA(C2)=(3.3+/-0.2) eV ... [more ▼]

By mass spectrometric study of the appearance of C2-, CH- and C2H- from CH4, C2H2, C2H4, C2H3X (X=F, Cl) the following electronaffinities have been determined: EA(CH)=(2.6+/-0.3) eV, EA(C2)=(3.3+/-0.2) eV and EA(C2H)=(2.1+/-0.3) eV. Some evidence is brought to the existence of electronic excited states of these ions. An evaluation of these negative ions dissociation energy in their ground electronic state is given and is found to be of the order of magnitude of the corresponding isoelectronic molecular species dissociation energy. [less ▲]

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See detailEtude de la compréhension des messages contenus dans les journaux parlés et télévisés
de Landsheere, Gilbert ULg; Henry, G.; Donnay, J.

in Scientia Paedagogica Experimentalis (1970), 7(1), 23-64

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See detailProduction de l'épicéa commun (Picea abies KARST.) dans quelques stations de l'Ardenne Centrale
Dagnelie, P.; Nivelle; Rondeux, Jacques ULg et al

in Bulletin des Recherches Agronomiques de Gembloux (1970), V(3-4), 428-442

A l'occasion d'une révision d'aménagement, un inventaire par échantillonnage a été organisé dans un ensemble de pessières dépendant du cantonnement forestier de Nassogne. Les observations dendrométriques ... [more ▼]

A l'occasion d'une révision d'aménagement, un inventaire par échantillonnage a été organisé dans un ensemble de pessières dépendant du cantonnement forestier de Nassogne. Les observations dendrométriques obtenues de cette façon ont été utilisées subsidiairement dans le but de comparer la croissance des différents peuplements et de constituer des ébauches de tables de production. Le paragraphe 2 fournit une description des différents types de peuplements considérés (paragraphe 2.1), du mode d'échantillonnage qui a été adopté et des mensurations qui ont été réalisées (paragraphe 2.2). Le paragraphe 3 présente les formules de calcul utilisées (paragraphe 3.1) et les principaux résultats obtenus (paragraphe 3.2). Enfin, le paragraphe 4 est consacré à une discussion de ces résultats et à quelques conclusions. [less ▲]

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See detailBelgien
de Landsheere, Gilbert ULg

in Rombach, Heinrich (Ed.) Lexikon der Pädagogik. Vol. 1, ABC bis Frankl (1970)

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See detailExtracellular, penicillin-resistant DD-carboxypeptidase from Streptomyces SP [abstract]
Leyh-Bouille, Mélina; Ghuysen, Jean-Marie ULg; Bonaly, R. et al

in Xe Congresso Internacional de Microbiologica - Resumenes - abstracts - résumés (1970)

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See detailLa formation des maîtres par l'analyse des interactions pédagogiques
de Landsheere, Gilbert ULg

in Hilligen, Wolfgang; Raasch, Rudolf (Eds.) Pädagogische Forschung und pädagogischer Fortschritt, Bielefeld, Bertelsmann (1970)

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See detailIntroduction à la recherche en éducation
de Landsheere, Gilbert ULg; Mialaret, G.

Book published by Thone - 3ème éd. rev. et augm. (1970)

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See detailLa pédagogie paléolithique ou préhistoire de la contestation
Benjamin, Harold; De Landsheere, Gilbert ULg

Book published by Nathan/Labor (1970)

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See detailDes enseignants s'initient à l'enseignement programmé
D'HAINAUT, Louis; Leclercq, Dieudonné ULg

in Revue de la Direction Générale de l’Organisation des Etudes (1970)

Les auteurs décrivent (1) les interventions d'experts (G. de Landsheere, M. Richelle, L. D'Hainaut, D. Leclercq, M-O Houziaux, G. Pire) dans un programme de formation d'enseignants du secondaire à l ... [more ▼]

Les auteurs décrivent (1) les interventions d'experts (G. de Landsheere, M. Richelle, L. D'Hainaut, D. Leclercq, M-O Houziaux, G. Pire) dans un programme de formation d'enseignants du secondaire à l'enseignement programmé. (2) les étapes de construction qui ont été vécues par les participants invités à les pratiquer sur un cas précis (en physique). [less ▲]

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See detailAction of chlordiazepoxide on two types of temporal conditioning in rats
Richelle, Marc ULg; Xhenseval, B.; Fontaine, Ovide ULg et al

in Thompson, T. (Ed.) Readings in behavioral pharmacology (1970)

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See detailOccurrence of N-glycolylmuramic acid in bacterial cell walls: a preliminary survey
Azuma, I.; Thomas, D. W.; Adam, A. et al

in Biochimica et Biophysica Acta - General Subjects (1970), 208(3), 444-451

The N-acyl substituent of muramic acid in the cell walls of some species of Actinomycetales and of the related family of Corynebacteriaceae has been studied. The N-glycolyl derivative, recently identified ... [more ▼]

The N-acyl substituent of muramic acid in the cell walls of some species of Actinomycetales and of the related family of Corynebacteriaceae has been studied. The N-glycolyl derivative, recently identified in Mycobacterium smegmatis, has been found in the three other species of Mycobacterium studied: M. kansasii, M. tuberculosis BCG, and M. phlei. The classical N-acetyl derivative has been found in Streptomyces albus and Corynebacterium fermentans. [less ▲]

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See detailAnimal behavior
Buser, P.; Cook, L.; Giurgea, C. et al

in Bobon, D. P. (Ed.) The neuroleptics (1970)

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See detailConditionnement et psychiatrie
Richelle, Marc ULg

in Confrontations Psychiatriques (1970), 6

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See detailBehavioural techniques
Richelle, Marc ULg; Dallemagne, M. J.

in Bacq, Z. M. (Ed.) Fundamentals of biochemical pharmacology (1970)

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See detailTitration schedule with rats in a restraining device
Dallemagne, G.; Richelle, Marc ULg

in Journal of the Experimental Analysis of Behavior (1970), 13(3), 339-348

In a restraining device, providing a constant localization and easy placement of stimulating electrodes, rats were contioned to a push a front panel in order to reduce the intensity of a shock which ... [more ▼]

In a restraining device, providing a constant localization and easy placement of stimulating electrodes, rats were contioned to a push a front panel in order to reduce the intensity of a shock which otherwise increased regularly every 10 sec. Rapid contioning was obtained from all subjects. They showed a very stable behavior, with negligible inter- or intra-individual variability throughout very long experimental sessions. The operant nature of the response was demonstrated further in extinction, where no shock was delivered, and in situations where the animal could not change the predetermined intensity of the shock. The interpretaion of the obtained threshold was discussed with reference to previous studies on titration schedule. It was suggested that, with the parameters used, the shock intensity at which it was maintained by the rats' behavior, had the value of a warming signal, and that, in this particular case, the titration schedule mainly discriminative avoidance behavior rather than escape behavior. [less ▲]

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See detailMalentendus sur les apports du conditionnement
Richelle, Marc ULg

in Revue de Comportement Animal (1970), 4

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See detailZur Biostratigraphischen Gliederung und zu den Referenz-Schichten des Famenniums in Belgium
Bouckaert, J; Streel, Maurice ULg; Thorez, J

in Zeitschrift der Deutschen Geologischen Gesellschaft (1970), 120

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See detailCarte géologique de la grotte de Remouchamps (Belgique) Notice explicative
Ek, Camille ULg

in Annales de la Société Géologique de Belgique (1970), 93(2), 287-292

The geological map of the cavern of Remouchamps was surveyed at a scale of I : 500. The main structural features are two anticlines, with faulted hinges, separated by a syncline. The observed faults are ... [more ▼]

The geological map of the cavern of Remouchamps was surveyed at a scale of I : 500. The main structural features are two anticlines, with faulted hinges, separated by a syncline. The observed faults are reversed, except for the most northerly - the Faille Cathédrale Nord - which is normal. The strike of the principal faults is about N.- 70-80°E. No faults with this strike have been recognized on the surface at Remouchamps. [less ▲]

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