Conquering the Virtual Public': Jean-Paul Sartre's La tribune des temps modernes and the Radio in France

On the evening of Monday, 21 October 1947, La Tribune de Paris – a daily radio programme that provided a forum for discussion and analysis of current events – gave over its nightly news review, from 8:30 to 8:50, to ‘Jean-Paul Sartre et ses collaborateurs’. This new programme, scheduled to run weekly on Monday evenings, was La tribune des temps modernes. Sartre’s ‘collaborateurs’ were a rotating group of fellow editors of his journal, Les temps modernes, for which the radio programme was named. They included Simone de Beauvoir and Maurice Merleau-Ponty as regulars, alongside important contributions from Jean Pouillon, Jean-Bertrand Pontalis and Alain Bonafé. Structured as a semiscripted discussion, La tribune des temps modernes ran in the regular weekly slot for six weeks, before being abruptly cancelled in December, following a controversial run and – probably crucially – a change of government

Migration and Economic Growth: a 21st Century Perspective

While there is extensive literature on the determinants of migration and its microeconomic effects, the New Zealand theoretical or empirical literature specifically examining the effects of migration on economic growth is not as comprehensive. In New Zealand there has been an implicit underlying assumption that immigration is good for economic growth, as evidenced by the attempted use of immigration to resolve particular labour market problems. This paper uses the growth accounting policy framework to discuss the mechanisms through which immigration can impact economic growth. It reviews the contemporary literature with a view to identifying how immigration policy may be adjusted to improve the potential returns to growth from immigration in New Zealand.Migration, immigration, emigration, economic growth, growth accounting framework, New Zealand

A high reliability battery management system

Over a period of some 5 years Canadian Astronautics Limited (CAL) has developed a system to autonomously manage, and thus prolong the life of, secondary storage batteries. During the development, the system was aimed at the space vehicle application using nickel cadmium batteries, but is expected to be able to enhance the life and performance of any rechargeable electrochemical couple. The system handles the cells of a battery individually and thus avoids the problems of over, and under, drive that inevitably occur in a battery of cells managed by an averaging system. This individual handling also allow cells to be totally bypassed in the event of failure, thus avoiding the losses associated with low capacity, partial short circuit, and the catastrophe of open circuit. The system has an optional capability of managing redundant batteries simultaneously, adding the advantage of on line reconditioning of one battery, while the other maintains the energy storage capability of the overall system. As developed, the system contains a dedicated, redundant, microprocessor, but the capability exists to have this computing capability time shared, or remote, and operating through a data link. As adjuncts to the basic management system CAL has developed high efficiency, polyphase, power regulators for charge and discharge power conditioning

On resolving singularities

Let V be an irreducible affine algebraic variety over a field k of characteristic zero, and let (f_0,...,f_m) be a sequence of elements of the coordinate ring. There is probably no elementary condition on the f_i and their derivatives which determines whether the blowup of V along (f_0,...,f_m) is nonsingular. The result is that there indeed is such an elementary condition, involving the first and second derivatives of the $f_i,$ provided we admit certain singular blowups, all of which can be resolved by an additional Nash blowup. There is is a particular explicit sequence of ideals R=J_0, J_1, J_2,... \subset R so that V_i=Bl_{J_i}V is the i'th Nash blowup of V, with J_i|J_{i+1} for all i. Applying our earlier paper, V_i is nonsingular if and only if the ideal class of J_{i+1} divides some power of the ideal class of J_i. The present paper brings things down to earth considerably: such a divisibility of ideal classes implies that for some N\ge r+2 J_i^{N-r-2}J_{i+1}^{r+3}=J_i^NJ_{i+2}. Yet note that this identity in turn implies J_{i+2} is a divisor of some power of J_{i+1}. Thus although $V_i$ may fail to be nonsingular, when the identity holds the {\it next} variety V_{i+1} must be nonsingular. Thus the Nash question is equivalent to the assertion that the identity above holds for some sufficiently large i and N

Self-Similarities and Invariant Densities for Model Sets

Model sets (also called cut and project sets) are generalizations of lattices. Here we show how the self-similarities of model sets are a natural replacement for the group of translations of a lattice. This leads us to the concept of averaging operators and invariant densities on model sets. We prove that invariant densities exist and that they produce absolutely continuous invariant measures in internal space. We study the invariant densities and their relationships to diffraction, continuous refinement operators, and Hutchinson measures.Comment: 15 pages, 2 figures, to appear in: Algebraic Methods and Theoretical Physics (ed. Y. St. Aubin

The Effect of Body Position and Mattress Type on Interface Pressure in Quadriplegic Adults-a Pilot Study

Dental morbidity is a chronic problem that affects a child\u27s ability to attend school, to learn, and to enjoy good health. Of all childhood diseases, oral disease ranks as one of the highest and is considered one of the most common and the least treated. The prevalence of dental caries is high among children and adolescents in school populations. This study explored the prevalence of dental caries in a California Central Coast middle school during the 2002-03 school year (N=526). Findings indicated that severe dental caries existed in both boys and girls and in students of various ethnic groups. Approximately 5.7% of adolescents were shown to have visible and severe dental caries with significant ethnic variation. Twice as many Hispanic teens had visible dental caries as the white and other non-white teens. School nurses should routinely screen for dental disease in all school grades and provide resources and referrals for dental treatment