IN-SITU ALLOYING PROCESS OF TI6AL4V-xCU STRUCTURES BY DIRECT METAL LASER SINTERING

Published Conference ProceedingsIn this paper the fabrication of in-situ Ti6Al4V-xCu alloy structures by DMLS are investigated. Ti6Al4V is a commonly used biomedical alloy because of it suitable mechanical and biocompatible properties. Copper is a proven anti-bacterial agent and in small amounts is not toxic to the human body. Ti6Al4V-xCu implants can be constructed to have a biocompatible structure with copper additions to reduce the risk of bacterial infection and implant failure. Infection at the bone–implant interface is the most probable reason for implant failure directly after implantation. Ti6Al4V powder was mixed with Cu powder to form a master alloy. Optimal process parameters need to be established for in-situ alloying of Ti6Al4V-xCu to form dense parts with suitable surface quality. The effect of laser scanning speeds and hatch distance on surface characteristics was investigated. The surface roughness, chemical composition and distribution of Cu near the surface and within the synthesized layer, as well as micro hardness were considered. A rescanning strategy was employed and showed improved alloy homogeneity and surface quality

What supports hospital pharmacist prescribing in Scotland? A mixed methods, exploratory sequential study.

While approximately half of all qualified hospital pharmacist independent prescribers (PIPs) in Scotland are active prescribers, there are major differences in prescribing activity across geographical areas. This study aimed to explore, through focus groups, interviews and a questionnaire, hospital PIPs' perceptions of factors associated with prescribing activity and to investigate the infrastructure required to better support active prescribing by PIPs. Findings reinforced the perceived positive impact of supportive pharmacy leadership within the organisation, recognition that prescribing is integral to the clinical pharmacist role and a work environment conducive to prescribing

Development of a paediatric triage tool to aid clinical prioritisation and delivery of pharmaceutical care

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On Interaction Classification

Further classification is made of Lindquist's dichotomy of inter action effects. The extension hopefully reduces errors of inter pretation and provides a simple, accurate means of summarizing in teractions obtained.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/67338/2/10.1177_001316448004000405.pd

Manufacturing, microstructure and mechanical properties of selective laser melted Ti6Al4V-Cu

Conference ProceedingsTi6Al4V is a commonly used biomedical alloy because of its suitable mechanical and biocompatible properties. Infection at the bone–implant interface is the most probable reason for implant failure directly after implantation. Copper is a proven anti-bacterial agent and in small amounts is not toxic to the human body. Copper additions reduce the risk of bacterial infection and implant failure. Thus advanced implants can be constructed to have a biocompatibility and antibacterial properties. Optimal process parameters are needed to be established for in-situ alloying of Ti6Al4V-Cu to form dense parts with suitable mechanical properties. The effect of laser scanning speeds and hatch distance on morphology of single layers was investigated. The surface roughness, chemical composition and distribution of Cu near the surface and within the synthesized layer, as well as micro hardness were considered. An employed rescanning strategy showed improved alloy homogeneity and surface quality. On the base of these data 3D samples were produced. Microstructure and mechanical properties of as-built parts were analysed

Categorical regression in marketing

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/21641/1/0000025.pd

Management perspectives on Markstrat: The GE experience and beyond

Markstrat has attained great success as an educational tool for marketing management. It is also a simulated environment in which academics are now conducting experimental studies on marketing variables and monitoring the impact in the Markstrat context. A most important question that arises in both these types of utilization of Markstrat is the degree to which it reflects the real world of marketing decision making. Do managers from diverse industry experience perceive that Markstrat reflects a real enough marketplace to be useful both as a teaching tool and as a research environment? This article reports the results of a study of this question in the General Electric Company, plus the perceptions of another set of managers drawn from a broad set of other companies. Overall results indicate that managers working in diverse industries believe that Markstrat does reflect a real environment useful for teaching and research.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/26491/1/0000027.pd

Using a task-based approach in evaluating the usability of BoBIs in an e-book environment

This paper reports on a usability evaluation of BoBIs (Back-of-the-book Indexes) as searching and browsing tools in an e-book environment. This study employed a task-based approach and within-subject design. The retrieval performance of a BoBI was compared with a ToC and Full-Text Search tool in terms of their respective effectiveness and efficiency for finding information in e-books. The results demonstrated that a BoBI was significantly more efficient (faster) and useful compared to a ToC or Full-Text Search tool for finding information in an e-book environment