THE INTERNATIONALIZATION DETERMINANTS OF THE SMALL AGRO-FOOD FIRMS: HYPOTHESES AND STATISTICAL TESTS

The purpose of this paper is to establish a link between competition perceived by the small firm manager and the decision to export. Using a sample of 335 small agro-food firms as a basis to our study, the statistical model presented shows a negative connection between the high perceived quality competitiveness and the fact that a firm exports.Agribusiness, International Relations/Trade,

How do consumers react in front of individual and combined sustainable food labels? A UK focus group study

A lot of sustainable food labels are now available. They may be complementary or add to the increasing competition of product information in consumers' minds. This paper investigates (1) two focus groups consumers' perceptions about sustainable labels versus other labels, such as origin or nutrition labels, and (2) consumers' reactions to combinations of different sustainable claims or labels. Overall, findings indicate that there is interest in combining different claims into a single label. However, the results also indicate the importance of familiarity, trust and, fit between combinations of labels as well as between a label associated with a brand. While the combination of certain labels can enhance the value of a food product, this study also indicates that other label combinations can detract from a label's value. ...French Abstract : De nombreux produits alimentaires avec des labels "durables" sont proposés aujourd'hui aux consommateurs. Ils peuvent être complémentaires ou à l'opposé augmenter la concurrence entre les différents éléments d'information dans l'esprit des consommateurs. Cet article étudie les perceptions qu'ont des consommateurs interrogés lors de deux focus groups au Royaume-Uni, des labels durables par comparaison à d'autres labels (nutrition ou origine), et leur réaction à des combinaisons de messages et de labels durables. De façon générale, les résultats indiquent qu'il est utile de combiner plusieurs messages sur un même label. Cependant l'étude montre aussi l'importance de la familiarité, de la confiance, de la cohérence perçue entre labels ou entre un label et une marque associée. Certaines combinaisons peuvent en effet faire perdre de la valeur à un label durable au lieu de lui en donner.SUSTAINABLE FOOD; LABELS; QUALITATIVE STUDY; TRUST; FIT

SOLUTIONS OF THE LANDAU-VLASOV EQUATION IN NUCLEAR PHYSICS

The properties of Vlasov equation solutions obtained by projection on coherent state basis are discussed. Such solutions satisfy stationarity conditions and satisfactorily describe the average diffusivity of nuclear phase space and reproduce the bulk properties of nuclei. Sampling methods and their effects on dynamics are discussed for the study of heavy ion reactions at intermediate energies. The non-local Gogny force is easily computable on this basis which allows to use it for dynamical nuclear studies

Simulation in Supply Chains: An Arena basis

<p>ENGLISH ABSTRACT: The quest for global competitiveness brought about new business approaches, of which the supply chain has become an important entity during the last few years. With even more complex decision structures, demand variation and the need for evaluating alternatives within this frame, simulation and simulation-optimization have been identified as key decision-making tools. This paper briefly reviews the basic characteristics of supply chains, and illustrates that existing software may be integrated towards a supply chain simulator.</p><p>AFRIKAANSE OPSOMMING: Die strewe na globale mededingendheid vereis nuwe benaderings deur ondernemings, terwyl die toevoerketting 'n belangrike entiteit gedurende die afgelope paar jaar geword het. Toenemende kompleksiteit in besluitneming, variasie in vraag en die behoefte om alternatiewe binne hierdie komplekse raamwerk te evalueer, het tot gevolg dat simulasie en simulasie-optimering as sleutel-besluitneming gereedskap beskou word. Hierdie artikel gee 'n kort oorsig oor die basiese eienskappe van toevoerkettings, en dit word getoon dat bestaandeprogrammatuur integreer kan word om 'n toevoerketting-simuleerderte ontwikkel.</p&gt

LOW AND INTERMEDIATE ENERGY HEAVY ION COLLISIONS IN THE SEMI-CLASSICAL MICROSCOPIC DESCRIPTION

It is shown how peripheral and central heavy-ion collisions can be described by Landau-Vlasov dynamics. For peripheral collisions at intermediate energies, mass-mass correlations, ejectile mean energies and angular distributions are obtained and compared with fragmentation data. For central collisions, one shows that the collision term destroys the TDHF property of transparency at low impact parameters for collisions close from the Coulomb barrier. Above 20 MeV/u incomplete fusion is described with associated linear momentum transfer and nuclear deformations. One exhibits how coupling to the continuum is obtained in Vlasov and Landau-Vlasov dynamics. Coulomb interaction being taken into account, we present also results concerning the isospin transfer and the excitation of the isovector dipole mode near and well above the Coulomb barrier. Some perspectives to further studies of physical observables are finally drawn

PHASE SPACE DYNAMICS OF HEAVY ION NUCLEAR COLLISIONS IN THE FERMI ENERGY DOMAIN

No abstract availabl

A STUDY ON THE FUSION REACTION 139La + 12C AT 50 MeV/u WITH THE VUU EQUATION

Recently Bownan et al. found that in the reaction 139La + 12C at 50 MeV/u a compound nucleus is formed. We simulate this reaction with a numerical solution of the VUU equation and indeed find that for a central collision the system fuses and equilibrates after 90 fm/c

Macroscopic dynamics of the fusion process

A macroscopic dynamical model has been used to calculate fusion cross sections for a wide number of systems ranging from 16O + 27Al to 40Ar + 165Ho. This model takes into account the reorganization of the densities and the nucleon exchanges. The possible reaction mechanisms after capture of the system into the pocket of the interaction potential are discussed Two processes contribute to fusion : compound nucleus formation and fast fission phenomenon. The calculated fusion cross sections are in overall agreement with the data

Isospin non-equilibrium in heavy-ion collisions at intermediate energies

We study the equilibration of isospin degree of freedom in intermediate energy heavy-ion collisions using an isospin-dependent BUU model. It is found that there exists a transition from the isospin equilibration at low energies to non-equilibration at high energies as the beam energy varies across the Fermi energy in central, asymmetric heavy-ion collisions. At beam energies around 55 MeV/nucleon, the composite system in thermal equilibrium but isospin non-equilibrium breaks up into two primary hot residues with N/Z ratios closely related to those of the target and projectile respectively. The decay of these forward-backward moving residues results in the strong isospin asymmetry in space and the dependence of the isotopic composition of fragments on the N/Z ratios of the target and projectile. These features are in good agreement with those found recently in experiments at NSCL/MSU and TAMU, implications of these findings are discussed.Comment: 9 pages, latex, + 3 figures available upon reques