Magellan: la question des moluques et la première circumnavigation du globe

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THE IMPACT OF GEL ELECTROPHORESIS UPON OUR UNDERSTANDING OF THE ESTERASES *

The impact of gel electrophoresis upon our understanding of the esterases has been formidable in that it has provided us with new insights and understanding concerning the number and biochemical characteristics of the many esterase-active proteins found in biological material. The relationships between the esterases within a species and among species still remains largely to be determined. With regard to the function of esterases it is to be expected that there will be several. One promising possibility is suggested by the work of Allen and Hunter, which illustrated a dependent relationship between male sex hormone and the esterases in the mouse epididymis. Supporting this work is the observation by Shaw and Koen (1963) demonstrating the presence of an esterase in the mouse kidney, which also was dependent on male sex hormone. The change observed in the serum esterase of the pregnant rabbit reported here and in women by Friedman and Lapman (1961) may also relate to hormone changes associated with pregnancy, although this relationship remains to be demonstrated. A second area where the esterases are likely to be functioning is in relation to protein synthetic activity of the endoplasmic reticulum. The only evidence supporting this suggestion is the abundant presence of esterases found in this location. The seven experiments described and discussed here along with those included in the references may serve as illustrations of the kind of work that can be accomplished by the use of these methods.*Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/75632/1/j.1749-6632.1964.tb14224.x.pd

Magellan ; La question des moluques et la première circumnavigation du globe

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Archives commerciales privées : le fonds des faillites à Anvers

Denucé J. Archives commerciales privées : le fonds des faillites à Anvers. In: Annales d'histoire économique et sociale. 4ᵉ année, N. 16, 1932. pp. 372-377

Les origines de la cartographie portugaise et les cartes des Reinel

"Cartes : 1. Mappemonde d'un inconnu, ms. Egerton 2803. 2 Carte de l'océan Atlantique. 3. Carte du Brésil. 4. Carte des Açores. 5a) L'océan Indien d'après l'atlas de Paris (1516) b) L'océan Indien, carte des Reinel de Munich (1517) c) L'océan Indien, anonyme de 1520, Munich.""Cartes: 1. Mappemonde d'un inconnu, ms. Egerton 2803. 2. Carte de l'océan Atlantique. 3. Carte du Brésil. 4. Carte des Açores. 5. a) L'océan Indien, d'après l'atlas de Paris (1516) b) L'océan Indien, carte des Reinel de Munich (1517) c) L'océan Indien, anonyme de 1520, Munich."5-A. L'ocean Indien, d'apres l'Atlas de Paris (1516) -- b. L'ocean Indien, carte des Reinel de Munich (1517) -- c. L'ocean Indien, carte anonyme de 1520, Munich.Cartes: 1. Mappemonde d'un inconnu, MS. Egerton 2803 -- 2. Carte de l'ocean atlantique -- 3. Carte du Bresil -- 4. Carte des Acores."Cartes : 1. Mappemonde d'un inconnu, ms. Egerton 2803. 2 Carte de l'océan Atlantique. 3. Carte du Brésil. 4. Carte des Açores. 5a) L'océan Indien d'après l'atlas de Paris (1516) b) L'océan Indien, carte des Reinel de Munich (1517) c) L'océan Indien, anonyme de 1520, Munich."Mode of access: Internet