Sapientia, 2004, Vol. LIX, nº 216 (número completo)

Contenido: Josef Pieper en el centenario de su nacimiento / Héctor J. Delbosco – Misterio filosófico y misterio teológico en Josef Pieper y en Santo Tomás de Aquino / Ignacio Andereggen – El status de la filosofía en la posciencia. Respuestas desde Josef Pieper / Miriam Dolly Arancibía de Calmels – “Miseria y esplendor de la interpretación”. En torno a los límites de la hermenéutica en Pieper y en Ortega / Roberto E. Aras – Si sí : la condicionalidad metafísica de una afirmación absoluta / Santiago Argüello – Una perspectiva del saber y de la fortaleza en el héroe unamuniano a la luz de Josef Pieper / Angélica S. Arza de Bousquet – Manía, mito y conmoción erótica / Luis Baliña ; Juan Torbidoni – Juventud, fiesta y esperanza en la obra de Josef Pieper : una respuesta a la cultura posmoderna / Santiago Bellomo – Pieper y Guardini en Rothenfels : un encuentro fecundo / Alberto Berro – La afirmación real del amor / María José Binetti – Josef Pieper al encuentro de Platón : una relectura de las relaciones entre mito y filosofía / Claudio Calabrese – Orientación y pautas de discernimiento en el ámbito poético-literario : la doctrina de la contemplación terrena enunciada por Josef Pieper e ilustrada en Albert Camus / Inés de Cassagne – La imposibilidad de una filosofía no cristiana según Josef Pieper / Agustín Ignacio Echavarría – Ética y psicoterapia según Josef Pieper / Martín Echavarría – Enseñanzas de un gran maestro : la corruptibilidad de la palabra / María del Carmen Fernández – La inspiración platónica de la filosofía de Josef Pieper / Juan Francisco Franck – Método y lenguaje en el pensamiento de Josef Pieper / Jean Lauand – Josef Pieper y Peter Wust / Juan Andrés Levermann – Aprobación creadora : un aspecto de la dimensión social del bien de la persona / Marisa Mosto – Josef Pieper y la reflexión sobre el mito y la cultura / Héctor Jorge Padrón – Josef Pieper y el tomismo medieval : la controversia sobre la creación / François-Xavier Putallaz – Algunas consideraciones sobre J. Pieper y el tema del mal en la problemática filosófica contemporánea / Juan Pablo Roldán – Josef Pieper y la acedia : la causa afectiva de ciertas deformaciones intelectuales / El hombre de ocio : parásito o transformador del mundo / Bernard N. Schumacher – La templanza en Josef Pieper y Santo Tomás / Zelmira Seligmann – El ideal del trabajo en Josef Pieper / Ludovico Antonio Videla – Valor para la realidad – Valor para la persona : reafirmación cristiana como crítica de la cultura en la obra temprana de Josef Pieper / Berthold Wald – Notas y comentarios -- Bibliografía

Using EMGs and kinematics data to study the take-off technique of experts and novices for a pole vaulting short run-up educational exercise

This study attempts to characterise the electromyographic activity and kinematics exhibited during the performance of take-off for a pole vaulting short run-up educational exercise, for different expertise levels. Two groups (experts and novices) participated in this study. Both groups were asked to execute their take-off technique for that specific exercise. Among the kinematics variables studied, the knee, hip and ankle angles and the hip and knee angular velocities were significantly different. There were also significant differences in the EMG variables, especially in terms of (i) biceps femoris and gastrocnemius lateralis activity at touchdown and (ii) vastus lateralis and gastrocnemius lateralis activity during take-off. During touchdown, the experts tended to increase the stiffness of the take-off leg to decrease braking. Novices exhibited less stiffness in the take-off leg due to their tendency to maintain a tighter knee angle. Novices also transferred less energy forward during take-off due to lack of contraction in the vastus lateralis, which is known to contribute to forward energy transfers. This study highlights the differences in both groups in terms of muscular and angular control according to the studied variables. Such studies of pole vaulting could be useful to help novices to learn expert's technique.

Kinematics and EMG analysis of expert pole vaulter's lower limb during take off phase (P218)

Introduction: The critical phase, in jumping events in track and field, appears to be between touchdown and take-off. Since obvious similarities exist between the take off phase in both long jump and pole vault, numerous 3D kinematics and electromyographic studies have only looked at long jump. Currently there are few detailed kinematics electromyographic data on the pole vault take-off phase. The aim of this study was therefore to characterise kinematics and electromyographic variables during the take-off phase to provide a better understanding of this phase in pole vaulting and its role in performance outcome. Material and methods: Six pole-vaulters took part in the study. Kinematics data were captured with retro reflective markers fixed on the body. Hip, knee and ankle angle were calculated. Differential bipolar surface electrodes were placed on the following muscles of the take-off leg: tibialis anterior, lateral gastrocnemius, vastus lateralis, rectus femoris, bicep femoris and gluteus maximus. EMG activity was synchronously acquired with the kinematic data. EMG data were rectified and smoothed using a second order low pass Butterworth Bidirectional filter (resulting in a 4th order filter) with a cut-off frequency of 14 Hz. Results: Evolution of hip, knee and ankle angle show no significant differences during the last step before touchdown, the take-off phase and the beginning of fly phase. Meanwhile, strong differences in EMG signal are noted inter and intra pole vaulter. However for a same subject the EMG activities seem to converge to some phase locked point. Discussion: All pole vaulters have approximately the same visible coordination This coordination reflects a different muscular control among pole vaulters but also for a considered pole vaulter. These phase locked point could be considered as invariant of motor control i.e. a prerequisite for a normal sequence of the movement and performance realization.

Caroli Clusii,... Ad Thomam Redigerum et Joannem Cratonem epistolae. Accedunt Remberti Dodonaei, Abrahami Ortelii, Gerardi Mercatoris et Ariae Montani ad eumdem Cratonem epistolae... Edidit P. F. X. de Ram,...

Comprend : Epistolae ; Epistolae ad Joannem Cratonem ; Epistola ; Epistola

Le Siecle de la raison, ou Le Sens commun des droits de l'homme ; par F. Lanthenas, député à la Convention nationale : suivi d'un Tableau frappant du despotisme & fanatisme ancien & moderne dédié à tous les sans-culottes de la République française & à nos descendants ; par le citoyen Néez, propagateur de l'esprit révolutionnaire

Comprend : Tableau frappant du despotisme & fanatisme ancien & moderne

Histoire de Mademoiselle de Choiseul [A l'auteur d'une épitre à Uranie, par Tanevot]

Comprend : À l'auteur d'une Épître à Uranie

SFX à l'Université de Montréal

Communication faisant état de l'implantation de SFX à l'Université de Montréal, présentée dans le cadre de l'activité de formation « OpenURL : pourquoi et comment ? » du programme de formation continue de la Corporation des bibliothécaires professionnels du Québec, le 4 février 2005.

SFX, OpenURL et la métarecherche

Présenté le 5 octobre 2005 dans le cadre du cours « Recherche d'information avancée » à l'EBSI (École de bibliothéconomie et des sciences de l'information), Université de Montréal

Les portails de bibliothèque: Nouvelles fonctionnalités, nouveaux défis

Les auteurs présentent un survol des logiciels de portails de bibliothèque. La notion de portail de bibliothèque est d’abord définie, puis les principales fonctionnalités de ce type de produit (métarecherche, personnalisation, authentification) sont présentées et expliquées. Un aperçu du marché des logiciels de portail est ensuite donné. Des questions reliées à la fiabilité des résultats et à la formation des utilisateurs sont également soulevées. // The authors present a brief review of software for library portals. The concept of library portals is defined and their main functionalities subsequently presented and explained (meta search engines, personalization, authentication). A general survey of the market for portal software is given before addressing certain questions about the reliability of their results and user training.