l/D 29 -- THE GENERALATE TEAM, October 1981 -- Spiritans for Tomorrow -- (pg. 1) -- The future -- (pg. 2) -- We are all involved -- (pg. 2) -- Some concerns for formation -- (pg. 3) -- The role of the Generalate Team -- (pg. 4)

l/D 33 -- THE GENERALATE TEAM, February 1983 -- Internationality Re-examined -- (pg. 1) -- The present world view -- (pg. 1) -- Our Spiritan family -- (pg. 1) -- Internationality: Are we prepared for it? -- (pg. 1) -- Internationality: Why? -- (pg. 2) -- Internationality: Obstacles -- (pg. 3) -- Internationality: What it means for us -- (pg. 3) -- Our present endeavours -- (pg. 3) -- International teams: Caveats -- (pg. 3) -- How do we achieve internationality? -- (pg. 4) -- Action! -- (pg. 4) -- Conclusion -- (pg. 4)

l/D 44 -- THE GENERALATE TEAM, April 1989 -- Spiritan Formation Today -- (pg. 1) -- I. They will begin their mission in the year 2000 -- (pg. 1) -- II. Towards what kind of unity in Spiritan formation? -- (pg. 2) -- III. The training of formators - an urgent missionary need -- (pg. 4)

l/D 56 -- General Council, December 1999 -- PREPARATION FOR MISSION TODAY -- A. THE IMPORTANCE OF FORMATION -- (pg. 1) -- B: PRESENT CONCERNS -- (pg. 5) -- C: PROPOSALS FOR ACTION -- (pg. 7) -- CONCLUSION -- (pg. 8)

I/D 13 -- The Generalate Team, October-November 1977 -- Young People: As in Libermann’s Day -- (pg. 1) -- Get Back to the Original Inspiration -- (pg. 1) -- Community -- (pg. 2) -- Mission Today -- (pg. 3) -- Towards the Future -- (pg. 4) -- Happy to be Spiritans -- (pg. 4)

Formation for mission -- Spiritan Life No. 12 -- April 2001 -- CONTENTS -- Editorial -- (pg 1) -- Formation of the Agents of Evangelisation, Cecil McGarry SJ. -- (pg 3) -- Formation as seen by Francis Libermann, Christian de Mare -- (pg 17) -- A role for the Laity in Spiritan formation, Peter and Judy Stubbs -- (pg 29) -- What style of Formation for Mission today? Bede Ukwuije -- (pg 35) -- A view of Formation from Haiti, Pierre Chery -- (pg 43) -- Spiritual growth for future Mission, Tom Raftery -- (pg 47) -- Pakistan: A relevant formation? Marc Tyrant and Michel Protain -- (pg 55) -- "Stage" as a learning experience, Ronan White and Victor da Silva -- (pg 63) -- On-going formation for a changing Mission, Philip Massawe -- (pg 69)

TABLE OF CONTENTS -- Introduction -- (pg. 3) -- Christian Berton -- Welcome Address -- (pg. 8) -- Martin Keane -- Address by the Superior General -- (pg. 10) -- Jean-Paul Hoch -- Psycho-Spiritual Integration in the Formation Process -- (pg. 15) -- Justi Tarimo -- Spiritan Discernment and Evaluation in Initial Formation -- (pg. 38) -- Bill Cleary -- JPIC and Spiritan Mission: New Possibilities for Initial and On-going Formation -- (pg. 61) -- John Kilcrann -- The Directory for Formation of the Union of Circumscriptions of Latin America (UCAL) -- (pg. 68) -- Pierre Jubinville -- Objectives -- (pg. 78) -- Pierre Jubinville -- Indicators -- (pg. 80) -- Pierre Jubinville -- Evaluation Sheet -- (pg. 82) -- Bill Cleary -- The dossiers of the Formators’ Meeting -- Nairobi July 2010 -- (pg. 86) -- Closing Remarks -- (pg. 105) -- John Kingston -- List of Delegates -- (pg. 110) -- List of Functionaries -- (pg. 112)

Pour les systèmes de commande sous la forme de dx/dt = f (x, u), dans la littérature, les chercheurs s'intéressaient à la stabilisation de ce système de différentes manières : asymptotique, uniformément asymptotique, partielle, en temps fini, etc. Pour aboutir à ces résultats, les méthodes utilisées font appel aux techniques suivantes : Lyapunov, Lasalle, Barbalat, surface glissante, etc. Dans cette thèse, nous nous sommes intéressés à une autre fonctionnalité de la commande, dite commande répulsive stabilisante. Les résultats ont été généralisés au cas d'un système avec dérive et sans dérive. Comme résultat, l'approche de commande qu'on propose assure la stabilité du système autour d'une position désirée et la répulsion de celui-ci par rapport à un ensemble indésirable, construit dans l'espace de navigation. Toute forme d'application sera concernée par nos résultats théoriques, on peut citer, la navigation terrestre et aérienne dans un environnement peu ou pas connu. De même, la commande qu'on propose préserve la communication inter-agent, une fois planifiées. En terme d'application, on a considéré le modèle d'un véhicule à roues type unicycle, sans tenir compte de l'orientation (cas non holonôme) et dans le cas où l'environnement contient un ou plusieurs obstacle(s). Contrairement aux résultats de la littérature, qui sont basés sur une commande à structure variable pour l'évitement d'un obstacle, la commande répulsive-stabilisante trouvée est une commande continue sur l'espace de navigation. La deuxième partie de cette thèse traite le problème de stabilité d'une formation d'agents (système multi-véhicules) qui évolue dans un environnement hostile tout en préservant la communication entre les agents. Pour réussir la formation, la décentralisation de la commande par rapport aux agents est rendue robuste à travers des graphes de communication. Ces graphes relèvent de la stratégie et objectifs de la formation. Nos résultats de stabilité ont fait l'objet d'une implémentation rigoureuse sur un simulateur réalisé sous Matlab. / For control systems in the form dx/dt = f (x, u), in the literature, researchers were interested in stabilizing the system in different ways : asymptotic, uniformly asymptotic, partial, in #nite time, etc. To achieve these results, the methods involve the following techniques : Lyapunov, LaSalle, Barbalat, sliding surface, etc. In this thesis, we became interested in another feature form of the controller, called repulsive stabilizing controller. The results were generalized to the case of a system with drift and without drift. As a result, the proposed control approach ensures the system stability around a desired position and the repulsion of the latter over a set junk, built in the navigation space. Any form of application will be concerned by our theoretical results including, terrestrial and aerial navigations in a little known or not known environment. Similarly, the proposed control law, once planned, preserves the inter-agent communication. In terms of application, we considered the model of a unicycle-type wheeled vehicle, regardless of orientation (non-holonomic case) and where the environment contains one or more obstacle(s). Contrary to the results of the literature, which are based on a switching control structure for avoidance of an obstacle, the stabilizing repulsive found is a smooth and continuous controller on the navigation space. The second part of this thesis addresses the stability problem of a formation of agents (multi-vehicle) operating in a hostile environment while maintaining the communication between agents. To successfully the strategy of the formation, the decentralized controller over agents is made robust through communication graphs. These graphs are performed according to the formation strategy and objectives. Our stability results have been implemented in a simulator made in Matlab.

Dissertation--Berlin--Humboldt-Universität, 2004. / Bibliogr. p. 333-357.

Herbig-Haro (HH) objects are small nebulous regions of shock excited gas associated with bipolar outflows from newly formed stars. This dissertation presents an extensive set of observational data on Herbig-Haro objects, including deep CCD images, medium resolution long-slit spectra, and high resolution echelle spectra. The CCD survey indicates that HH objects cannot be identified reliably on the basis of morphology alone. The spectral line data show that HH objects exhibit enormous linewidths even though the objects are only about 1500 AU in size. The spectra sometimes have two velocity peaks, and show spatial separation of the high and low radial velocity gas. A radiative bowshock model constructed from a series of planar shock models accounts for the large linewidths, unusual line profiles, line ratios, and spatial structure seen in HH objects. A simple formula is derived that relates the shock velocity and orientation angle of a radiating bowshock to the observed maximum and minimum radial velocities seen in a line profile. The bowshock forms around a 'bullet' of material ejected from the forming star. The most likely acceleration mechanism for the bullet seems to be a breakup of a collimated stellar jet.