Introducing a Cross-Course Teaching Innovation to Enhance Group Project Performance

[EN] Marketing educators and students recognize the benefits derived from group assignments. Nonetheless, serious problems that occur frequently in student groups are diminished effort by some free-riding team members or disassociation from the group by lone wolf team members. In a highly innovative manner, the American Marketing Association’s integrated marketing plan international competition was concurrently adopted by Principles of Marketing, Marketing Research and Advanced Advertising courses in an attempt to leverage the many benefits of team projects while minimizing their drawbacks.Defanti, M. (2017). Introducing a Cross-Course Teaching Innovation to Enhance Group Project Performance. En Proceedings of the 3rd International Conference on Higher Education Advances. Editorial Universitat Politècnica de València. 750-757. https://doi.org/10.4995/HEAD17.2017.539975075

True, false, paranormal, and 'designated'? : a reply to Jenkins

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Rare diagnosis of Ebstein anomaly in an adult patient in Northern Rio de Janeiro

Ebstein anomaly is the fourth most frequent cyanotic heart disease in the neonatal period, and its clinical course is slow compared to other diseases, which in turn results in late diagnosis of this condition. We present a case of a 37-year-old man who complained of palpitation for about 5 years, twice a week, at rest, with prolonged duration and low systemic output. Auscultation revealed irregular heart rhythm characterized by extrasystoles with a tricuspid systolic murmur grade 5+/6 and worsening on inspiration. Clinical spectrum is variable and depends on the severity of defects and associated anatomical changes. In patients who have reached adulthood, symptoms usually present as progressive cyanosis, exercise intolerance, right heart failure, and arrhythmias. In Brazil, identification of this congenital disease usually occurs in a more adult phase, affecting the prognosis and survival of patients

Raytheon Conductive Polymer Printing

Raytheon has asked team S.H.I.E.L.D to design an enclosure for a Circuit Card Assembly (CCA) that is thermally conductive, able to prevent electromagnetic interference with other devices and is able to be produced using additive manufacturing. The enclosure needs to be thermally conductive to prevent the electronics on the circuit card from overheating. Because of all the other electrical devices that will be in the general vicinity, the enclosure will be to be electrically conductive to prevent any electrical interference with the other devices. And finally, the enclosure needs to be able to be produced using additive manufacturing because this will save Raytheon money, as well as give Raytheon flexibility when designing the enclosures. Flexibility in the design of the enclosures is important because there are a variety of different circuit card sizes and designs that need to be shielded. Team S.H.I.E.L.D chose a specific enclosure design to focus on, which has a heat sink and multiple compartments so that multiple CCAs could be shielded. Engineering analysis was completed on this specific design to prove that it would reach the necessary engineering design specifications. This preliminary design was created in Solidworks and a thermal analysis was run on it, using the information from the design specifications, like the power output of a generic electrical component. Multiple different material thermal conductivities were analyzed, and the result was a range of thermal conductivities that the material for the enclosure can have to prevent the components of the CCA from overheating. The thermal analysis gave the team a range of material thermal conductivities that would be acceptable to have in the chosen design. The next step is to test the thermal conductivity of metal infused PLAs that the team believes was have a sufficient thermal conductivity. A financial analysis was completed, which compared the cost of the current manufacturing process compared to the teams proposed process, and also analyzed the return on investment. The result of this analysis was that Raytheon would save $10,000 per enclosure that was engineered and produced. Also, after engineering and producing 7 different enclosures, Raytheon make their money back of they bought an industrial 3D printer specifically for producing CCA enclosures. The teams most important findings were that, first, none of the metal infused PLA\u27s were electrically conductive, but if they were painted with a nickel conductive coating paint, produced my MG Chemicals and called Super Shield, then the sample was able to prevent electromagnetic interference up to 3 GHz, which is up to our design specifications. For thermal conductivity, it was concluded that the Graphene PLA with the EMI paint was the best solution because it had the highest thermal conductivity value of 0.49 W/m*K. This value did not reach our desired specification of greater than 1 W/m*K, but an enclosure with a thermal conductivity of 0.49 W/m*K still has realistic applications for Raytheon. The applications are just not as broad as they would be with a thermal conductivity greater than 1 W/m*K

The Corrosion Behaviour of Additively Manufactured AlSi10Mg Parts Compared to Traditional Al Alloys

Additive manufacturing of metal parts in the motorsport industry is becoming a decisive technology for producing lightweight and rigid parts, with increasing applications as the costs decrease. Among the available metal alloys, AlSi10Mg is one of the most widely used. In this paper, the corrosion resistance of additively manufactured AlSi10Mg is compared with that of other traditionally manufactured aluminium alloys widespread in the automotive industry. Several potentially corrosive agents, typical of vehicle applications, were used: salty water, motor oil, suspension oil, cooling fluid and gasoline. Corrosion tests were conducted at both room temperature and 90 C. The effects of heat and surface treatments were evaluated separately. The samples were visually inspected and weighed to evaluate the corrosion rate with the aid of SEM and EDS analysis. Additively manufactured AlSi10Mg generally showed better corrosion resistance in the stress-relieved condition as compared to the T6-treated state, with slightly better results for the polished samples. Motor oil, suspension oil, cooling fluid and gasoline did not significantly corrode the specimens, except for the T6-treated AlSi10Mg samples at 90 C. However, the corrosion rate was always higher than traditionally manufactured aluminium alloys tested for comparison

The effect of a corporate name change related to a change in corporate image upon a firm's stock price

This dissertation utilizes the event study methodology from the modern theory of finance to examine corporate name changes (CNCs). Data sources include press releases and articles announcing CNCs compiled by Lexis Nexis, annual reports collected from the SEC File microfiche database compiled by Q-Data and the EDGAR database compiled online by Mergent, and the Center for Research on Stock Prices and COMPUSTAT compiled by Wharton Research Data Services. These data sources are used to answer three primary research questions. First, what is the effect of a CNC related to a change in corporate image, as opposed to a change in corporate entity (e.g., acquisition), on a firm’s stock price? Second, what is the effect of a major change versus a minor change to the corporate name during a CNC related to a change in corporate image? Third, what is the effect of a non-brand name altering CNC versus a brand name altering CNC on a firm’s stock price? This dissertation makes its primary contribution to the study of CNCs by finding that CNCs related to a change in corporate image will have a positive impact on stock price whereas CNCs related to a change in corporate entity will not. Moreover, it finds that major changes to the corporate name during CNCs related to a change in corporate image will have a positive impact on a firm’s stock price whereas minor changes to the corporate name during CNCs related to a change in corporate image will not. Finally, it is the first study to examine the effect of CNCs on firms’ brand names and finds that non-brand name altering CNCs related to a change in corporate image will have a positive impact on a firm’s stock price whereas brand name altering CNCs related to a change in corporate image will not

Boosting Productivity of Laser Powder Bed Fusion for AlSi10Mg

The Laser Powder Bed Fusion (L-PBF) process is recognized for high-end industrial applications due to its ability to produce parts with high geometric complexity. If lightweighting is one of the main strengths of L-PBF, a weakness is still the trade-off between high mechanical properties and competitive productivity. This objective can be targeted through a fine tuning of the process parameters within the manufacturing window. The paper pursues the combined optimization of part quality and process productivity for AlSi10Mg by going beyond the commonly used approach based solely on volumetric energy density. The effects of hatch distance and scan speed on the two targets were analyzed in detail. The best results were achieved by the adoption of a high scan speed and a low hatch distance, with notably different outcomes for nearly the same energy density