Efficacité de la technique d'induction florale d'Ananas comosus (L.) Merr. au moyen de charbon actif enrichi à l'éthylène (TIFBio)

Efficiency of the Ananas comosus (L.) Merr. flower induction treatment based on ethylene enriched activated carbon (TIFBio). Pineapple is an important export crop for tropical countries. The flower induction treatments are essential to the pineapple production for economical and social reasons. For conventional agriculture, many chemicals are available but for organic farming ethylene is the only allowed product. A new flower induction method suited to small organic growers has been developed by the Pesticides Initiative Programme of the Coleacp funded by the European Development Fund. The trials conducted proved that the method reaches more than 80% efficiency at 10 weeks for the different application methods evaluated. The wet application trials show a doses response effect as well as effect of the application replication at 2 days interval. The flowering rate culminates at 100% after 8 weeks for the best results, obtained with the wet treatment at 250 mg per plant applied two times at 2 days interval. The different dry treatments tested gave all 85 – 90% flowering rates at 10 weeks, suggesting the presence of an undetermined limitation factor in the conditions prevailing for the trial. The time of application during the day shows no significant effect. It is concluded that the growers can use the TIFBio technique for production control. It is recommended to evaluate the most suited application technique according to their particular case as environmental effect can affect the efficiency

‘Stick that knife in me’: Shane Meadows’ children

This article brings Shane Meadows’ Dead Man's Shoes (2004) into dialogue with the history of the depiction of the child on film. Exploring Meadows’ work for its complex investment in the figure of the child on screen, it traces the limits of the liberal ideology of the child in his cinema and the structures of feeling mobilised by its uses – at once aesthetic and sociological – of technologies of vision

Nonlinear Seebeck Effect in a Model Granular Superconductor

The change of the Josephson supercurrent density of a weakly-connected granular superconductor in response to externally applied arbitrary thermal gradient dT/dx (nonlinear Seebeck effect) is considered within a model of 3D Josephson junction arrays. For dT/dx>(dT/dx)_c, where (dT/dx)_c is estimated to be of the order of 10^4 K/m for YBCO ceramics with an average grain's size of 10 microns, the weak-links-dominated thermopower S (Seebeck coefficient) is predicted to become strongly dT/dx-dependent.Comment: REVTEX, no figure

Rarefaction effects on Galileo probe aerodynamics

Solutions of aerodynamic characteristics are presented for the Galileo Probe entering Jupiter's hydrogen-helium atmosphere at a nominal relative velocity of 47.4 km/s. Focus is on predicting the aerodynamic drag coefficient during the transitional flow regime using the direct simulation Monte Carlo (DSMC) method. Accuracy of the probe's drag coefficient directly impacts the inferred atmospheric properties that are being extracted from the deceleration measurements made by onboard accelerometers as part of the Atmospheric Structure Experiment. The range of rarefaction considered in the present study extends from the free molecular limit to continuum conditions. Comparisons made with previous calculations and experimental measurements show the present results for drag to merge well with Navier-Stokes and experimental results for the least rarefied conditions considered

Analog of Magnetoelectric Effect in High-Tc Granular Superconductors

We propose the existence of an electric-field induced nonlinear magnetization in a weakly coupled granular superconductor due to time-parity violation. As the field increases the induced magnetization passes from para- to dia-magnetic behavior. We discuss conditions under which this effect could be experimentally measured in high-temperature superconductors.Comment: REVTEX (epsf style), 1 PS figure; to appear in Europhysics Letter

Energy Organizational Planning

As the Seneca Nation of Indians (SNI) continues to refine and finalize its Strategic Energy Plan, it became necessary to insure that a sustainable organization structure was developed through which the energy program and its initiatives could be nurtured and managed. To that end, SNI undertook a study to thoroughly evaluate the existing organizational structures and assess the requisite changes and/or additions to that framework that would complement the mission of the Strategic Plan. The goal of this study was to analyze, work with staff and leadership and recommend the most effective plan for the development of an organizational framework within which the Seneca could more effectively exercise energy sovereignty – control and manage their natural resource assets – i.e. develop its own energy resources, meet the current and projected energy needs of their community, and “sit at the table” with other regional energy providers to deal with issues on a peer-to-peer basis