Basado enteramente en pruebas internas, este estudio se propone mostrar que el manuscrito único del Dīwān de Ibn Quzmān, publicado en edición facsímil por David de Gunzburg en 1896, es una copia dictada. Se indica también que el copista, a quien con frecuencia se ha culpado de introducir en el texto popular andaluz correcciones o clasicismos, no estaba bien equipado para desempeñar tal papel. Si bien era un calígrafo de primera categoría, se aducen pruebas de que su conocimiento del árabe (...) no estaba a la altura de la calidad de su caligrafía. El estudio muestra que él fue el responsable de una amplia gama de problemas textuales que ha dejado perplejos a sucesivos editores del Dīwān. En marcado contraste, se muestra que Ibn Quzmān poseía un dominio magistral de la lengua árabe y de las tradiciones-árabes clásicas. Al parecer también había adquirido un alto grado de 'aculturación' en la lengua romance. Además de ofrecer las pruebas en que se basan estos asertos, el estudio constituye un ejemplo ilustrativo de cómo estas pruebas pueden ayudar a una mejor lectura e interpretación del Dīwān de Ibn Quzmān. (shrink)

We believe that the task goal in voluntary movements provides meaning to existing information sources in the environment and determines, in a dynamic way, the use and relative importance of these different sources. This task-centered meaning bridges the apparent controversy between what information is available in principle (i.e., specification), and what information is perceived.

Filosofische ponering van de subjectiviteit van elke interpretatie.

Tick and tick-borne diseases, especially East Coast fever, caused byTheileria parva, are amongst the most important factors limiting cattle production in Eastern, Central, and Southern Africa. In the past, they have been controlled mainly by the use of acaricides to kill ticks. Immunization has been shown to be an effective alternative method of control of tick-borne diseases in limited field trials. A development program has been initiated to produce vaccines and implement immunization on a wide scale in the region in (...) a sustainable manner as part of an integrated tick and tickborne disease control program. The consequent reduction in cattle mortality is expected to have far-reaching benefits for the region. (shrink)

Physiological concentrations of retinoic acid can induce acute alterations in the expression of the enzyme tissue transglutaminase in cultured macrophages. The induction of this enzyme offers a probe to study the mechanism of retinoid action in both normal and leukemic cells.

FRANTZEN: KRIT. B. Z. FISCHARTS ÜBERS. RABELAIS' AST 3.

A simple transposition in the text would, I venture to suggest, remove one or two of the many difficulties of this obscure chapter.

We would like to thank Dolega and Dewhurst for a thought-provoking and informed deconstruction of our article, which we take as applause from valued members of our audience. In brief, we fully concur with the theatre-free formulation offered by Dolega and Dewhurst and take the opportunity to explain why we used the Cartesian theatre metaphor. We do this by drawing an analogy between consciousness and evolution. This analogy is used to emphasize the circular causality inherent in the free energy principle. (...) We conclude with a comment on the special forms of active inference that may be associated with selfawareness and how they may be especially informed by dream states. (shrink)

Graph polynomials are graph parameters invariant under graph isomorphisms which take values in a polynomial ring with a fixed finite number of indeterminates. We study graph polynomials from a model theoretic point of view. In this paper we distinguish between the graph theoretic (semantic) and the algebraic (syntactic) meaning of graph polynomials. Graph polynomials appear in the literature either as generating functions, as generalized chromatic polynomials, or as polynomials derived via determinants of adjacency or Laplacian matrices. We show that these (...) forms are mutually incomparable, and propose a unified framework based on definability in Second Order Logic. We show that this comprises virtually all examples of graph polynomials with a fixed finite set of indeterminates. Finally we show that the location of zeros and stability of graph polynomials is not a semantic property. The paper emphasizes a model theoretic view. It gives a unified exposition of classical results in algebraic combinatorics together with new and some of our previously obtained results scattered in the graph theoretic literature. (shrink)

As stated in C.R. LI, p. 168, the Jerusalem palimpsest of Euripides had been collated by Tischendorf, Papadopoulos Kerameus and Horna Mr. D. L. Page's edition of the Medea takes account of the present collation, which in its turn owes much to the acumen of Mr. Page and to his kindness in allowing me to include some of his results obtained from independent photographs. Each of the above-named scholars has found reason to correct and add to his predecessor's work, and (...) this is natural, since not only is man not infallible but more and more is also required of a collator as time goes on. (shrink)