Switching dynamics of spatial solitary wave pixels

Separatrices and scaling laws in the switching dynamics of spatial solitary wave pixels are investigated. We show that the dynamics in the full model are similar to those in the plane-wave limit. Switching features may be indicated and explained by the motion of the (complex) solitary wave amplitude in the phase plane. We report generalization, into the domain of transverse effects, of the pulse area theorem for the switching process and a logarithmic law for the transient dynamics. We also consider, for what is the first time to our knowledge, phase-encoded address of solitary pixels and find that a near-square-wave temporal switching pattern is permitted without (transverse) cross switching

Keynote Address: Health over the Life Course

Sylvain Segard is a public policy manager with over 20 years of experience at the provincial, federal, and international levels in such diverse fields as economic and regional development, social policy, environment and sustainable development, maritime safety, corporate and strategic planning, and federal budget making. Mr. Segard is the Director General of the Center for Health Promotion with the Public Health Agency of Canada (PHAC). He oversees a number of programs to promote healthy living among Canadians in general as well as initiatives targeted at reducing health risks among vulnerable populations. Prior to joining PHAC, Mr. Segard was Director General, Program Policy and Planning with the Learning Branch of Human Resources and Social Development Canada. His role was to promote lifelong learning by Canadians and to conduct a review of the Canada Student Loan Program, which lead to the largest modernization to Canada’s student aid in generations. Prior to this, he held progressively more responsible positions with the departments of Foreign Affairs, of Finance, and of Fisheries and Oceans Canada. Mr. Segard holds a B.Sc. in Biology and a Masters of Natural Resources Management. He is married with three children

Les sociétés alpines à l'époque romaine au travers des types d'habitat et des modes de construction

International audiencecet article propose une réflexion sur l'emploi des modes et des techniques de construction pour évaluer les changements que connaissent les sociétés alpines à l'époque romain

Post harvest protection against insects in the bulk grain supply chain the views of economic operators

European (EU-27) grain & oilseeds storers are regularly facing insect management issues. Under worldwide trading standards, the grain industry is committed to maintaining the “zero tolerance” for live insects (WTO-SPS agreements). The grain being harvested each year therefore has to be stored in a manner which ensures that these standards are met. The presence of living insects in stored grains would jeopardize the supply of the grain & oilseeds supply chain, both for food and feed as well as for exports. In this context, our survey covers a quantity of agri-product that is equivalent to 5% of the EU-27 production. Results show that storage operators need several modes of action in order to prevent and cure the build-up of insect infestations in grain while avoiding pest resistance. Ventilation, silo cleaning and fumigation are important aspects in the implementation of an integrated pest management. Because of legislative restrictions, we now rely on one fumigant and on only a limited number of residual storage insecticides. As a result, we show that European operators will face difficulties to combine the available management technique. Therefore we stress the need for legislative development together with an increase in research and development of new active substances. In addition, flexibility should be given to producers which are willing to submit a product composed with a generic active substance

Le pastoralisme antique autour du col du Petit-Saint-Bernard

International audienceCet article fait le bilan des recherches archéologiques entreprises autour du col du Petit-Saint-Bernard, dans une réflexion plus générale sur le pastoralisme antique

Saint-Arnoult – Avenue du Plateau, Jardins du Bocage

La fouille préventive réalisée entre juin et août 2012 à Saint-Arnoult, dans le Pays de Caux, a concerné une surface de 1,8 ha recouvrant une partie de l’emprise d’une zone pavillonnaire située en périphérie nord du village. La majorité des vestiges correspond à un vaste établissement antique. S’y ajoutent une petite fosse datée du Néolithique moyen par le radiocarbone, ainsi que deux fosses rubéfiées (fours domestiques ?) datées entre le milieu du iie s. av. J.-C. et l’époque augustéenne. Au..

Saint-Germain-du-Puy – Les Boubards

L’opération de fouilles préventives réalisée entre février et juin 2011, à Saint-Germain-du-Puy les Boubards (Cher) a concerné une emprise de presque 16 000 m2 recouvrant une partie du tracé du prolongement de la rocade nord-est de Bourges. L’opération a conduit à mettre au jour des vestiges qui s’échelonnent entre la Protohistoire et la fin de l’Antiquité. Des indices de fréquentation du haut Moyen Âge ont également été relevés. La protohistoire ancienne (Hallstatt final/La Tène ancienne) es..