A Study of Theoretical Models for Managing Technology Change and a Comparison to a Radio Frequency Identification Implementation

This research developed an aggregate model for technological implementation in organizations. The aggregate model drew information from various theoretical models and aggregated those elements that were common to several of the models. Those elements included: information availability, anticipated profitability, probability of success, user attitudes, political attitudes, external pressure, teamwork, strategic planning, resource availability, and training. Individuals involved at various organizational levels of a Radio Frequency Identification implementation were interviewed to see if the aggregate model could be useful to managers. The researchers found evidence that each of the elements of the aggregate model could be beneficial to managers considering implementing new technologies. Also, the researchers found that individuals at different organizational levels tended to view these elements differently. Additionally, the researchers recommended several elements that could be added to the model. Future research should be conducted to determine if these additional elements should be added to the aggregate model and to determine the model is useful for various types of technologies

Double alignments of ammonoid aptychi from the Lower Cretaceous of Southeast France: Result of a post-mortem transport or bromalites?

A new preservation of aptychi is described from the Valanginian limestone−marl alternations of the Vergol section (Drôme), located in the Vocontian Basin (SE France). Aptychi are arranged into two parallel rows which are generally 50 mm in length and separated by 4 mm. The alignments are very often made by entire aptychi (around 10 mm in length), oriented following their harmonic margin. Aptychi show the outside of valve to the viewer: they are convex−up. This fossilization of aptychi is successively interpreted as the result of post−mortem transport by bottom currents (taphonomicresedimentation process) or the residues (bromalites: fossilized regurgitation, gastric and intestinal contents, excrement) from the digestive tract of an ammonoid−eater (biological processes). Both the parallel rows of aptychi are more likely interpreted as a coprolite (fossil faeces) and they could be considered as both halves (hemi−cylindrical in shape) of the same cylindrical coprolite which would have been separated in two parts (following the long axis) just after the animal defecated. Considering this hypothesis, a discussion is proposed on the hypothetical ammonoid−eater responsible for them

Ammonoid and nannoplankton abundance in Valanginian (early Cretaceous) limestone–marl successions from the southeast France Basin: carbonate dilution or productivity?

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