Declarative and Tacit Knowledge in Vitruvius: Disciplina, fabrica and ratiocinatio in De architectura I, 1

In the opening chapter of De architectura Vitruvius ex-amines the knowledge required to practice architecture and the means to acquire it. These, he claims, are manual skills and rational thought on one hand, deductive reasoning on the other. While the former suf-fice to make sound buildings, the latter is needed to integrate the build-ing-to-be in the world order. A scheme emerges: the knowledge required is both procedural and declarative. Vitruvius’ approach was uncommon, because it put these two kinds of knowledge on the same footing. By as-sociating manual skill with rational thought, and claiming that it creates new knowledge, as does deductive reasoning, Vitruvius places himself on the side of modern scholarship, rather, than on that of his contemporary philosophy, as much as he depended on it

Crystallization of poly(lactic acid) nucleated with the sorbitol TBPMN

We report on the crystallization of poly(lactic acid) (PLA) films in the presence of a sorbitol-based nucleating agent; 1,2,3-tridesoxy-4,6:5,7-bis-O-[(4-propylphenyl) methylene]-nonitol (TBPMN). Dispersion of the nucleating agent was performed by solution-mixing and melt-blending. Crystallization behavior was studied by differential scanning calorimetry (DSC). The structure and morphology were characterized by wide-angle X-ray scattering (WAXS), optical imaging, and atomic force microscopy (AFM). A significant impact of the nucleating agent was observed at or above a threshold concentration of 2 wt%, which was assigned to the solubility limit of TBPMN. The degree of crystallinity reached up to 39.6 % with 2 wt% TBPMN. An influence of the dispersion method was observed on the peak temperature of crystallization (Tcp). While Tcp decreased slightly for solution-mixed films, a sigmoidal trend was noted for melt-blended samples. Under isothermal conditions at 100 °C, the crystallization half-time was lowered from 6.5 min to 1.0 min. Avrami analysis pointed to the formation of 2-dimensional or 3-dimensional crystalline domains; WAXS data revealed α- and α'-crystals, depending on the dispersing method. AFM imaging showed a nanosized fibrillar network of the nucleator within the PLA matrix, demonstrating that TBPMN acted as a soluble self-assembly nucleator.</p

Manual / Issue 6 / Assemblage

Manual, a journal about art and its making. Assemblage. The sixth issue. An assemblage is both an act and a result-the work of gathering and conjoining as well as the state of having been gathered and conjoined. This issue of Manual pieces together works made out of practical necessity and others that marry dazzling embellishments for optimal effect, examining how history (or one version of it) was (and is) pastiched from disparate sources, how fashionable textile samples were collected, and more (always more). An assembly of assemblages, an assortment of intended and unintended interrelationships, Manual issue six is the sum of its parts and the parts themselves, a dynamic gathering of artists and authors, objects and interpretations, mash-ups and remixes, lemons and lightbulbs, vibrantly inter-animating each other. Softcover, 68 pages. Published 2016 by the RISD Museum. Manual 6 (Assemblage) contributors include Eric Anderson, Taylor Elyse Anderson, Bob Dilworth, Christina Hemauer, Roman Keller, Mariani Lefas-Tetenes, Simone Leigh, Leora Maltz-Leca, Ingrid A. Neuman, Tara Nummedal, Todd Oldham, and Britany Salsbury.https://digitalcommons.risd.edu/risdmuseum_journals/1032/thumbnail.jp

Behaviour of reinforced concrete structural walls and its implication for ultimate limit state design.

Imperial Users onl

VI. — École des hautes études commerciales : organisation de la préparation aux carrières diplomatiques et consulaires

Lefas Alexandre. VI. — École des hautes études commerciales : organisation de la préparation aux carrières diplomatiques et consulaires . In: Revue internationale de l'enseignement, tome 60, Juillet-Décembre 1910. pp. 78-81

Essai de comparaison entre le concept de « natural justice » en droit administratif anglo-saxon et les « principes généraux du droit » ainsi que les « règles générales de procédure » en droit administratif français

Lefas Aubert. Essai de comparaison entre le concept de « natural justice » en droit administratif anglo-saxon et les « principes généraux du droit » ainsi que les « règles générales de procédure » en droit administratif français. In: Revue internationale de droit comparé. Vol. 30 N°3, Juillet-septembre 1978. pp. 745-775

VI. — École des hautes études commerciales : organisation de la préparation aux carrières diplomatiques et consulaires

Lefas Alexandre. VI. — École des hautes études commerciales : organisation de la préparation aux carrières diplomatiques et consulaires . In: Revue internationale de l'enseignement, tome 60, Juillet-Décembre 1910. pp. 78-81