Submerged Vanes for Flow Control and Bank Protection in Streams, HR-255, 1984

This study was conducted for the purpose of evaluating a new concept for a bank-protection structure: The Iowa Vane . The underlying idea involves countering the torque exerted on the primary flow by its curvature and vertical velocity gradient, thereby eliminating or significantly reducing the secondary flow and thus reducing the undermining of the outer banks and the high-velocity attack on it. The new structure consists of an array of short, vertical, submerged vanes installed with a certain orientation on the channel bed. A relatively small number of vanes can produce bend flows which are practically uniform across the channel. The height of the vanes is less than half the water depth, and their angle with the flow direction is of the order of l0 degrees. In this study, design relations have been established. The relations, and the vanes' overall performance, have been tested in a laboratory model under different flow and sediment conditions. The results are used for the design of an Iowa-Vane bank protection structure for a section of East Nishnabotna River along U.S. Highway 34 at Red Oak, Iowa.

Les quinze joyes de mariage (Nouv. éd.) / nouv. éd., accompagnée de notes et d'un glossaire

[Quinze joies de mariage (français moyen). 1926]

Algunes notes sobre la formació del professorat

Parlar sobre la formació del professorat a Catalunya i Europa, en el marc d'una reforma educativa i de les prioritats europees del 1993, considerant la formació inicial i la permanent, no és tasca facil. Aquest és, peró, l'encarrec rebut i el compromis adquirit. Sóc conscient d'algunes de les limitacions d'aquestes pagines, que provenen de la complexitat mateixa de les qüestions plantejades. Amb tot, no he renunciat a opinar amb llibertat sobre la nostra situació actual, referint-me tant a aspectes globals com a realitzacions i programes concrets, i fent-ho sense les limitacions i condicionaments que imposen, sovint, les representacions institucionals.

Notes sobre subjectivitat i experiència

The aim of this paper is to underline the fact that, in most contemporary philosophical debates (and somehow, issues in feminist theory are not an exception), a well-known term is playing an important role: experience. We need a cartography of the uses of experience, if we want to know what we are talking about and also if we intend to analyze and to rethink the last 25 years of ¿women studies¿, ¿gender studies¿ or ¿subaltern studies¿.

The Conservativeness of the Central Bank when Institutional Quality is Poor

We propose an extension of Alesina and Tabellini 's model (1987) to include corruption, which is understood as the presence of weak institutions collecting revenue through formal tax channels. This paper analyses how conservative should an independent central bank be when the institutional quality is poor. When there are no political distortions, we show that the central bank has to be more conservative than the government, except with complete corruption. In this particular case, the central bank should be as conservative as the government. Further, we obtain that the relationship between the optimal relative degree of conservativeness of the central bank and the degree of corruption is affected by supply shocks. Concretely, when these shocks are not important, the central bank should be less conservative if the degree of corruption increases. However, this result may not hold when the shocks are relevant. JEL classi fication: D6, D73, E52, E58, E62, E63. Keywords: Central Bank Conservativeness; Corruption; Fiscal Policy; Monetary Policy; Seigniorage.