23,903 research outputs found
The Social Dimensions of Idea Work in Haute Cuisine: A Bourdieusian Perspective
This paper analyzes idea work in haute cuisine through three case studies. Mobilizing Bourdieu’s praxeology, we consider idea work as a practice, an activity that takes sense and meaning in the social world. Thus, idea work reflects the position of the agent in the field and the struggles to maintain or improve this position. In grand restaurants, the chefs play a key role in idea work, even if they involve other people. Idea work is rooted in their personal experience, but is also shaped by the restaurant’ style and haute cuisine rules. Idea work relates to chefs’ reflection as well as emotions and feelings.Bourdieu; Creativity; Field; Habitus; Haute Cuisine; Gastronomy; Practice
Evaluer les programmes de vaccination. L'influenza aviaire hautement pathogène en Egypte et au Vietnam
Unpacking Knowing Integration: A Practice-based Study in Haute Cuisine
Within a practice-based approach of organizations, we explore the knowing integration phenomena at the roots of competitive advantage. While former knowing integration studies have pointed to the importance of boundary objects across occupational communities, knowing integration inside a community to ground competitive advantage remains to be explored. How do individuals integrate their knowing in practice, in complex and important situations in order to contribute to competitive advantage for the firm? We ground our analysis on the ethnographic study of performed tasks in new dishes creation in two gourmet restaurants. We trace individual knowing in this creation to highlight how a new dish emerges from knowing integration, based on our understanding of knowing as processual, social, and situated. We propose a model of knowing integration as a combination of three phenomena: comprehending, interpreting and explicitating. We show that integration leads to the development of new dishes while knowing remains largely individual. We therefore suggest that there exists a clear distinction between knowing integration and knowledge sharing or transfer. We also contribute to a clearer delineation between integration and explicitation, the latter being only one and secondary means to achieve the former. Our study advances practice-based studies of organizations by highlighting the central role of integration in knowing dynamics and by bridging micro and macro perspectives on practice.Combination; Competitive Advantage; Integration; Knowledge; Learning; Restaurants; Transfer
Unpacking Knowing Integration: A Practice-based Study in Haute Cuisine
Nous proposons d'analyser l'intégration des connaissances à la source d'un avantage concurrentiel avec une approche pratique des organisations. Alors que la littérature s'est focalisée sur le transfert de connaissances et les relations entre communautés par le biais des objets frontière, nous considérons les relations intra-communauté et la façon dont les acteurs mobilisent, restructurent et créent des connaissances pour l'action. Dans une perspective pratique, la dynamique des connaissances est un phénomène situé dans un contexte social donné. Nous nous appuyons sur une phase empirique qualitative, par l'analyse de l'intégration des connaissances lors de la création de nouveaux plats au sein des équipes de cuisiniers de restaurants tri-étoilés.Apprentissage ; Avantage concurrentiel ; Connaissance ; Créativité ; Gastronomie ; Integration ; Transfert
The Social Dimensions of Idea Work in Haute Cuisine: A Bourdieusian Perspective
Nous proposons de définir la production d'idées comme une pratique, c'est-à-dire comme une activité qui prend son sens et sa valeur dans un contexte social, pour analyser le travail créatif dans les cuisines de trois grands restaurants.Créativité ; Gastronomie ; Idées ; Pratique
Comparison of two plant functional approaches to evaluate natural restoration along an old-field-deciduous forest chronosequence
Question: Are direct and indirect trait-based approaches similar in their usefulness to synthesize species responses to successional stages?\ud
Location: Northern hardwood forests, Que´bec, Canada\ud
(451010–451080N; 731580–741210W).\ud
Methods: Two different trait-based approaches were used to relate plant functional traits to succession on an old-field – deciduous forest chronosequence: (i) a frequently used approach based on co-occurrence of traits (emergent groups), and (ii) a new version of a direct functional approach at the trait level (the fourth-corner method). Additionally, we selected two different cut-off levels for the herb subset of the emergent group classification in order to test its robustness and ecological relevance.\ud
Results: Clear patterns of trait associations with stand developmental stages emerged from both the emergent group and the direct approach at the trait level. However, the emergent group classification was found to hide some trait-level differences such as a shift in seed size, light requirement and plant form along the chronosequence. Contrasting results were obtained for the seven or nine group classification of the herbaceous subset, illustrating how critical is the number of groups for emergent group classification.\ud
Conclusion: The simultaneous use of two different traitbased\ud
approaches provided a robust and comprehensive characterization of vegetation responses in the old-field -deciduous forest chronosequence. It also underlines the different goals as well as the limitations and benefits of these two approaches. Both approaches indicated that abandoned pastures of the northern hardwood biome have good potential for natural recovery. Conversion of these lands to other functions may lead to irremediable loss of biodiversity
Biotransformation of halogenated compounds by lyophilized cells of Rhodococcus erythropolis in a continuous solid-gas biofilter
The irreversible hydrolysis of 1-chlorobutane to 1-butanol and HCl by lyophilized cells of Rhodococcus erythropolis NCIMB 13064, using a solid–gas biofilter, is described as a model reaction. 1-Chlorobutane is hydrolyzed by the haloalkane dehalogenase from R. erythropolis. A critical water thermodynamic activity (aw ) of 0.4 is necessary for the enzyme to become active and optimal dehalogenase activity for the lyophilized cells is obtained for a aw of 0.9. A temperature of reaction of 40 ◦ C represents the best compromise between stability and activity. The activation energy of the reaction was determined and found equal to 59.5 kJ/mol. The absence of internal diffusional limitation of substrates in the biofilter was observed. The apparent Michaelis–Menten constants Km and Vmax for the lyophilized cells of R. erythropolis were 0.011 (1-chlorobutane thermodynamic activity, aClBut ) and 3.22 µmoles/min g of cell, respectively. The activity and stability of lyophilized cells were dependent on the quantity of HCl produced. Since possible modifications of local pH by the HCl product, pH control by the addition of volatile Lewis base (triethylamine) in the gaseous phase was employed. Triethylamine plays the role of a volatile buffer that controls local pH and the ionization state of the dehalogenase and prevents inhibition by Cl− . Finally, cells broken by the action of the lysozyme, were more stable than intact cells and more active. An initial reaction rate equal to 4.5 µmoles/min g of cell was observed
Structure-based analysis of the ultraspiracle protein and docking studies of putative ligands
The ultraspiracle protein (USP) is the insect ortholog of the mammalian retinoid X receptor (RXR). Fundamental questions concern the functional role of USP as the heterodimerization partner of insect nuclear receptors such as the ecdysone receptor. The crystallographic structures of the ligand binding domain of USPs of Heliothis virescens and Drosophila melanogaster solved recently show that helix 12 is locked in an antagonist conformation raising the question whether USPs could adopt an agonist conformation as observed in RXRα. In order to investigate this hypothesis, a homology model for USP is proposed that allows a structural analysis of the agonist conformation of helix 12 based on the sequence comparison with RXR. For USP, one of the main issues concerns its function and in particular whether its activity is ligand independent or not. The x-ray structures strongly suggest that USP can bind ligands. Putative ligands have therefore been docked in the USP homology model. Juvenile hormones and juvenile hormone analogs were chosen as target ligands for the docking study. The interaction between the ligand and the receptor are examined in terms of the pocket shape as well as in terms of the chemical nature of the residues lining the ligand binding cavity
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