ASTERIX and 2.0 Knowledge Management : exploring the appropriation of 2.0 KMS via the Myth of the Gaulish village

International audienceKnowledge Management Systems (KMS) in companies have profoundly changed in recent years. They have become KMS 2.0 that aim to transform the firm and are driven by a new relationship to knowledge in line with 2.0 organisations. These 2.0 KMS have implemented modes of organisation that disrupt those that previously guided firms’ performance. This can sometimes lead to paradoxical organizational dysfunctions as witnessed by the difficulties faced by some traditionally hierarchical French companies. Through a case study of Constructor and a theoretical background on IS appropriation in organizations and myths in management, we show how the Asterix myth contributes to understanding how 2.0. KMS are appropriated in such companies. We find evidence of similarities regarding knowledge and Knowledge Management between the Asterix’ myth and the behaviours and practices concerning knowledge management within Constructor. As a result, the Asterix’ myth may be a relevant perspective for understanding the obstacles, advantages and appropriations of 2.0. KMS within French organizations

Sintering and mechanical properties of magnesium-containing fluorapatite

International audienceFluorapatite and magnesium-substituted fluorapatite powders synthesized by the precipitation method were pressureless sintered in the range 900–1300 ◦C. The results showed that both materials exhibited a good sinterability. Concerning fluorapatite, a relative density of about 97% was attained at 1050 ◦C for 1 h. Although the incorporation of Mg into the apatite framework induced a slight decrease in the density, the substituted samples presented slightly higher mechanical properties. The maximum values of flexural strength, fracture toughness, hardness and Young's modulus of these latter samples were about 50.8 ± 4.0 MPa, 1.36 ± 0.10 MPam1/2, 121.9±2.4 MPa and 650±8 Hv, respectivel

Cephalometric diagnosis of obstructive sleep apnea in Tunisian subjects: A case-control study.

Objective: The main objective of this case-control study was to determine the anatomic risk factors responsible for the appearance and severity of Obstructive Sleep Apnea (OSA). Methods: Lateral radiographs of 33 patients with OSA, whose diagnosis was already confirmed by polysomnograpy (PSG), were compared to those of 33 control subjects. Seven anthropometric and 20 cephalometric variables were studied. The statistical analysis was performed using the SPSS version 17 and the significance rate was set at 5%. Results: the findings of our study support the literature data showing that patients with OSA are older and fatter [ BMI: 36,94kg/m² vs 23,21kg/m², p 0.001], and have more craniofacial anomalies manifested by an inferiorly positioned hyoid bone (H_MP: 20.13mm vs 13.48mm ; H_C3: 36.81mm vs 43.10mm ; H_ENA: 99.45mm vs 90.66mm ; p 0.001) and a narrower oropharynx associated with an increase of the tongue and soft palate length p(UH)=0.010 and p(UL)=0.000, p(TgLt)= 0.000).Conclusion: Fatty subjects with craniofacial abnormalities are more predisposed to develop OSA. Key words: obstructive sleep apnea, cephalometry, diagnosis, hyoid bon