Sur une forme particulière de fibrillation du muscle cardiaque

in Archives Internationales de Physiologie (1906), III

Sur une méthode simple de détermination de l'absorption des verres dans la région ultra-violette du spectre

in Bulletin de la Classe des Sciences. Académie Royale de Belgique (1929), XV(10), 749-755

Sur une modification lente de la constitution des solutions de certains sels

in Recueil des Travaux Chimiques des Pays-Bas et de la Belgique (1910), XXIX

By Spring, W. Inst. chim. gen., Liege. Rec. trav. chim. (1910), 29, 163-72; SciFinder (Chemical Abstracts Service: Columbus, OH); https://scifinder.cas.org (accessed July 8, 2010). Solns. of a number of ... [more ▼]

By Spring, W. Inst. chim. gen., Liege. Rec. trav. chim. (1910), 29, 163-72; SciFinder (Chemical Abstracts Service: Columbus, OH); https://scifinder.cas.org (accessed July 8, 2010). Solns. of a number of salts (KNO3, KBr, Na2SO4, K2Cr2O7, ZnSO4, CuCl2, CuSO4, MnCl2, AlCl3, etc.) prepared in 1905 and kept at ordinary temp. from the action of direct sunlight were examined at intervals during the following four years and were found to become more and more transparent. The degree of transparency was judged by the degree of luminosity in the soln. of a beam of light projected through it by an electric lantern (50 volts and 12 amp.). To ascertain if there had been any molecular change in the solns., during the four years the conductivities of the original and the four year old solns. were determined and compared. The cond. of the original solns. was determined from portions of the 4-year-old solns. which had been evaporated to dryness and redissolved to the original vol. In the majority of cases the 4-year-old solns. showed markedly smaller conds. This may be explained by a hydrolysis of the salt which occurs when the soln. is first made. The "hydrate" [hydroxide?] thus formed is in a colloidal condition and does not affect the electrical resistance; this colloidal soln. by reflection renders more luminous a beam of light passed through the soln. The free acid initially present is the cause of the high conductivity of the solution. In the old solns. the colloidal hydrate and the free acid have greatly decreased, and the conductivity is therefore smaller than before. The state of equilibrium of such a hydrolysis, when once displaced by change of temp., etc., is restored very slowly. The soln. becomes more optically transparent owing to the gradual disappearance of the colloidal hydrate. The K2Cr2O7 soln. alone was anomalous and showed a decrease in resistance of almost one-half on standing four years. This soln. had become yellow, but on evaporating the soln. and redissolving to the same vol. the color was reddish yellow as in the original soln. Reprinted with the permission of the American Chemical Society. Copyright © 2010. American Chemical Society (ACS). All Rights Reserved. [less ▲]

Sur une question de médecine légale

in Annales de la Société médico-chirurgicale de Liège (1885), (mai), 233

La surcharge pondérale chez l'enfant: un problème qui concerne toute la famille

Conference (2002, April 22)

Les surcoûts de l’étalement urbain en Wallonie

in Etudes Foncières (2001), (94), 18-21

Les surcoûts de la désurbanisation

Scientific conference (2009, April 03)

Les surcoûts de la désurbanisation

in A+ (2003), (Février-Mars), 34-37

Surentrainement et efforts d'endurance

in Revue Médicale de Liège (2001), 56(5), 343-52

Optimal training results in exercise-recovery harmonious balance. High frequency and volumic training, associated with insufficient recovery may induce overtraining. It depends on the kind of exercise but ... [more ▼]

Optimal training results in exercise-recovery harmonious balance. High frequency and volumic training, associated with insufficient recovery may induce overtraining. It depends on the kind of exercise but occurs mainly in endurance sports. The high frequency of upper respiratory track infection in endurance sportsmen results from a temporary immunosuppression state, possibly associated with overtraining. Many immune and haematological parameters have been associated with overtraining, but none seemed really efficient for diagnosis. Hormonal parameters, despite contradictions in studies, appear to give a good insight of athlete's staleness and are more predictive of overtraining. Actually, overtraining detection needs a combination of different parameters, and cannot sustain on isolated factors. [less ▲]

Les sûretés (2002-2006)

in Leleu, Yves-Henri (Ed.) Chroniques Notariales (2006)