Producing organic wheat with high grain protein content: the significance of intercropping and the need for diagnostic tools

Grain quality of wheat is one of the major concerns of organic farming production. Cereal-legume intercropping may be of significance in this regard as it enhances the yield productivity and the grain protein content (GPC) of the intercropped wheat. However, fitted tools are needed for the diagnosis and management of such interspecific canopies. Our main objectives were i) to analyse the effect of intercropping and N-management on organic farming performances and ii) to analyse the relationships between N-status indicators and GPC of intercropped wheat. These objectives were assessed in winter pea–wheat intercrops in 2007 and 2009 in western France. Our study confirmed the significance of intercropping in the production of wheat with high GPC. We showed that tools for diagnosis, fitted for sole crops to manage grain yield and GPC (N nutrition index, chlorophyll meter), can be used on intercropped wheat

Geometric Inversion of two-dimensional Stokes flows - Application to the flow between parallel planes

International audienceGeometric inversion is applied to two-dimensional Stokes flow in the objective to find new Stokes flow solutions. The principle of this method and the relations between the reference and inverse fluid velocity fields are presented. They are followed by applications to the flow between two parallel plates induced by a rotating or a translating cylinder. Thus hydrodynamic characteristics of flow around circular bodies obtained by inversion of the plates are straightforward deduced. Typically fluid flow patterns around two circular cylinders in contact placed in the centre of a rotating or a translating circular cylinder are illustrated

The impact of terrrorism attacks on stock market performance: evidence from Israel

This%is%a%study%on%the%impact%of%terrorism%attacks%on%stock%market%performance,%evidence% from%Israel.% % The%study%deals%with%the%question%“Which%effect(s)%do%terrorism%attacks%have% on%stock%market%performance%in%the%short%run?”%The%examines%the%short%term%impact%of% suicide%boom%terror%attacks%on%the%Israeli%stock%market,%Palestinian%stock%market,%Financial% sector% and% armament% manufactures,% performed% with% an% event% study% methodology% to% estimate%the%abnormal%returns%of%the%stock%prices%of%the%acquired%induces%and%firms%after% the%dates%when%the%terror%attack%happened.%The%terror%attacks%include%in%this%study%occurred% between%2003%until%2008.%The%results%overwhelmingly%show%signs%of%underperformance.% However,%there%are%indications%that%this%underperformance%does%not%continue%in%the%long% run.%Furthermore,%the%results%indicate%that%this%underperformance%is%different%for%different% subFgroups.

Stokes flow in a junction of two-dimensional orthogonal channels

International audienceThe purpose of this study is to calculate Stokes flow structures in relation to flow rate distribution in a junction of four orthogonal channels. Particular attention was paid to the existence of recirculation flow inside the channels for low Reynolds numbers. The presence of this recirculation flow may be observed, but only when the flow rate is relatively low in at least one of the branches

DNAPL Infiltration in a Two-Dimensional Porous Medium--Influence of the Shape of the Solid Particles

International audienceThe infiltration with atmospheric pressure of Dense Non Aqueous Phase Liquid (DNAPL) in a model of po- rous medium saturated by another liquid is studied when this DNAPL liquid has a contact angle characteriz- ing wetting liquid. The model of the porous medium considered consists of an assembly of solid particles for various forms. The influence of the shape of the particles is studied. The results found show the retention capacity of such porous media in function of the shape of the solid particles

Les théories de la complexité et la systémique en gouvernance clinique: le cas des soins intensifs chirurgicaux

Deux thématiques importantes des technologies de la santé: la pratique médicale fondée sur des preuves probantes et l’évaluation des interventions en médecine sont fondées sur une approche positiviste et une conception mécaniste des organisations en santé. Dans ce mémoire, nous soulevons l’hypothèse selon laquelle les théories de la complexité et la systémique permettent une conceptualisation différente de ces deux aspects de la gouvernance clinique d’une unité de Soins Intensifs Chirurgicaux (SIC), qui est considérée comme un système adaptatif dynamique non linéaire qui nécessite une approche systémique de la cognition. L’étude de cas d’une unité de SIC, permet de démontrer par de nombreux exemples et des analyses de micro-situations, toutes les caractéristiques de la complexité des patients critiques et instables et de la structure organisationnelle des SIC. Après une critique épistémologique de l’Evidence-Based Medicine nous proposons une pratique fondée sur des raisonnements cliniques alliant l’abduction, l’herméneutique et la systémique aux SIC. En nous inspirant des travaux de Karl Weick, nous suggérons aussi de repenser l’évaluation des modes d’interventions cliniques en s’inspirant de la notion d’organisation de haute fiabilité pour mettre en place les conditions nécessaires à l’amélioration des pratiques aux SIC.In Health Technology Assessment and Management, Evidence-Based Medicine and many tools available for clinical assessment reflect a positivistic and mechanistic approach to Health Care Organizations and scientific knowledge. We argue that the Complexity Theories and the Systemic decision-making process give a different insight on those two aspects of Clinical Governance in a Surgical Intensive Care Unit (SICU). In a case-study, we describe the nature of critically ill and unstable patients and the organizational structure of a SICU in a university based hospital. We demonstrate all the characteristics of complexity in that setting, through the use of many examples and micro-situational analysis. After an epistemological critical appraisal of EBM, we suggest that if a SICU is conceptualized as a dynamic non-linear adaptative system, then clinical knowledge and scientific thought processes must include hermeneutical, systemic and abductive types of reasoning. Finally, we draw upon Karl Weick’s work and suggest that a SICU must be considered as a High Reliability Organization in order to aim for improving patient care and create better conditions for quality and performance in this complex environment

Um olhar na obra de Saramago

Orientadora: Profª Anamaria FilizolaDissertação (mestrado) - Universidade Federal do Paraná, Setor de Ciências Humanas, Letras e Artes, Programa de Pós-Graduação em Letras. Defesa: Curitiba, 2006Inclui bibliografi

Agronomical techniques to improve technological and sanitary quality

In spite of variable grain protein contents, baking quality of organic wheat was found to be acceptable to good. Mycotoxin (DON) infestation was generally low on tested grain samples. Choice of wheat cultivar was the most efficient way to obtain higher grain quality. Fertilization with readily available nitrogen and, to a lower extent, association with legumes and green manures with mixtures containing fodder legumes also improved grain quality. Reduced tillage affected soil quality and wheat yield but had little effects on grain quality