El reinado de Fernando III Castilla y León (1217-1252) constituye un período transición entre las viejas curias plenas regias alto plenomedievales la baja Edad Media en que se desarrollará ya con intensidad institución Cortes. A través del presente trabajo abordamos el estudio proceso transformador jurídico-institucional antiguas a partir segunda mitad siglo XII, así como manifestaciones este a...

La Biblioteca nazionale centrale di Firenze renferme parmi ses tresors le plus ancien Shāhnāme conserve. Le volume – qui contient la moitie du recit – est date de 614/1217. Si texte bien sur en Persan, les titres sont ecrits Arabe et manuscrit des notes Turc, ce qui suggere que commanditaire lieu copie relevent cette culture. Ces pallient donc indirectement omissions colophon. Cet article prese...

In many plants, major developmental transitions such as the initiation of flowering are synchronized to the changing seasons. Day length provides one of the environmental cues used to achieve this. We describe the molecular mechanisms that measure day length and control flowering in Arabidopsis. Also, we compare these mechanisms with those that control flowering time in rice. This comparison su...

Zygmunt, Walter A. (Mead Johnson & Co., Evansville, Ind.). Antagonism of d-cycloserine inhibition of mycobacterial growth by d-alanine. J. Bacteriol. 85:1217-1220. 1963.-Reversal of the antimycobacterial activity of d-4-amino-3-isoxazolidinone (d-cycloserine) by alanine in two species of mycobacteria actively growing on chemically defined media was compared. In both instances, d-alanine was the...

A 55-year-old female patient presented with a history of recurrent episodes of cholangitis during the last 6 months. She underwent open cholecystectomy five years ago for symptomatic cholelithiasis. Laboratory data on admission showed elevated alkaline phosphatase 1217 IU/L (nl 64–306); total bilirubin 0.8 mg/dL (nl 0.2–1.1); SGOT 78 U/L (nl 5–40); and SGPT 85 U/L (nl 5–40). She was evaluated w...

By JOANNE H. JEPSON AND Louis LOWENSTEIN p URE RED CELL aplasia has been associated with a variety of conditions, including thymic tumors.1 1 It has recently been demonstrated that the thymus is involved in immunity in animals,1217 and previous investigators11-18 iave suggested that various erythroblastopenias are on the basis of autoimmunity although antibodies have not been demonstrated.1 2l ...

This paper presents a new methodology to compute the number of numerical semigroups of given genus or Frobenius number. We apply generating function tools to the bounded polyhedron that classifies the semigroups with given genus (or Frobenius number) and multiplicity. First, we give theoretical results about the polynomial-time complexity of counting these semigroups. We also illustrate the met...