68 research outputs found

    Network centrality and organizational aspirations: A behavioral interaction in the context of international strategic alliances

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    Whereas social network analysis has been associated with organizational aspirations, little is known on how firm's structural positioning, and particularly network centrality, affects organizational aspirations to engage in international strategic alliances (ISA). This study examines the impact of network centrality on firm's internationalization behavior within the ISA domain in response to the performance-aspiration gap. We build on social and behavioral perspectives to predict that network centrality and performance-based aspirations will be associated with the number of ISA the firm engages in. Using a sample of 7760 alliance collaborations from the top 81 global pharmaceutical firms for the period of 1991-2012, we find supporting evidence for most of our arguments

    Feasibility study of low force robotic friction stir process and its effect on cavitation erosion and electrochemical corrosion for Ni Al bronze alloys

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    Robotic friction stir processing (FSP) has not been widely researched to date. This is perhaps due to the limited force capabilities of industrial robots in comparison with dedicated commercial FSP equipment. When operating a FSP machine, the force used to plunge the tools may range from 5000 to 8000 N which is currently beyond the capability of most robots. However, the capacity of robotic manipulators is increasing, so low force friction stir processing is becoming feasible. The ability of the robot arm to apply a controlled force that is normal to a 3-dimensional surface without the need to reorient the workpiece makes it a very useful tool for FSP of complex components. In this analysis, a robot arm with a capacity of 2500 N is used to improve the surface properties of nickel aluminum bronze (NAB) using low force FSP. Multiple passes were applied to the surface of the test sample for a more consistent spread of the stir zone. The sample was then microhardness tested and demonstrated a 62 pct increase in surface hardness. Cavitation erosion testing of the original and processed surfaces was also performed as per ASTM G-32. The erosion rate of the processed NAB sample was 44 pct of the rate experienced by the original cast NAB sample. Finally, the corrosion potentials of FSP NAB were measured at 45 mV less anodic than the unprocessed material, indicating that the processed material is more noble relative to the cast NAB sample

    Breaking bad and difficult news in obstetric ultrasound and sonographer burnout: Is training helpful?

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    Background: Sonographers report high levels of burnout. For those working in obstetric ultrasound, one frequently cited stressor is the delivery of bad or difficult news. Training in news delivery may reduce sonographer stress levels, but no studies have investigated sonographer experiences of this training. Aims: To investigate sonographer experiences of difficult news delivery training and preferences for training techniques, and to assess whether news delivery training is associated with lower burnout and higher wellbeing. Methods: A cross-sectional survey measured occupational characteristics, news delivery training experiences and preferences, burnout (on two dimensions of exhaustion and disengagement), and general mental wellbeing. Results: Ninety sonographers (85 female; mean age = 47) responded. The majority of participants thought training in difficult news delivery had improved their practice. Preferred training techniques were observation of clinical practice and receiving service-user input. Eighty per cent of participants were experiencing exhaustion, 43.3% were experiencing disengagement and 88.9% could be classed as having a minor psychiatric disorder. Having received difficult news delivery training was associated with lower levels of disengagement, even when other variables were controlled for. Discussion: News delivery training is perceived to be effective by sonographers and may help to reduce sonographer burnout levels
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