Risk Propensity and The Aviator Shortage

This is an exploratory research study of the possible similarities in risk propensity between aviators and potential aviators and to determine the feasibility of using focused marketing strategies to increase the number of annually issued pilot certificates. This exploratory research was chosen for its significance in that there is a steady decline in the number of pilot certificates being issued annually (Blair, 2012), and there is also a dramatic increase in the number of airline pilots reaching the mandatory retirement age of 65 (Cary, 2012). The result of these two combined circumstances may cause an acute aviator shortage in the airline industry. The researcher for this exploratory study hopes to provide preliminary evidence of a relationship between the people in the population who are more willing to accept risk and interest in gaining more information about getting a pilot\u27s license and flying a plane. Once a particular population can be identified as distinct from the rest of the population then marketing actions can be considered by airlines, flight schools, and advertising agencies in order to help mitigate the effects of the upcoming aviator shortage for airlines. (Cary, 2012) As an exploratory study, the hope is to provide a suitable framework upon which future research can examine this topic

Cyberinfrastructure for Classical Philology

No humanists have moved more aggressively in the digital world than students of the Greco-Roman world but the first generation of digital classics has seen relatively superficial methods to address the problems of print culture. We are now beginning to see new intellectual practices for which new terms, eWissenschaft and eClassics, and a new cyberinfrastructure are emerging

The St. Chad Gospels: Diachronic Manuscript Registration and Visualization

This paper presents a software framework for the registration and visualization of layered image sets. To demonstrate the utility of these tools, we apply them to the St. Chad Gospels manuscript, relying on images of each page of the document as it appeared over time. An automated pipeline is used to perform non-rigid registration on each series of images. To visualize the differences between copies of the same page, a registered image viewer is constructed that enables direct comparisons of registered images. The registration pipeline and viewer for the resulting aligned images are generalized for use with other data sets

Internal or external magma oceans in the earliest protoplanets -- perspectives from nitrogen and carbon fractionation

When the extent of protoplanetary melting approached magma ocean (MO)-like conditions, alloy melts efficiently segregated from the silicates to form metallic cores. The nature of the MO of a differentiating protoplanet, i.e., internal or external MO (IMO or EMO), not only determines the abundances of life-essential volatiles like nitrogen (N) and carbon (C) in its core and mantle reservoirs but also the timing and mechanism of volatile loss. Whether the earliest formed protoplanets had IMOs or EMOs is, however, poorly understood. Here we model equilibrium N and C partitioning between alloy and silicate melts in the absence (IMO) or presence (EMO) of vapor degassed atmospheres. Bulk N and C inventories of the protoplanets during core formation are constrained for IMOs and EMOs by comparing the predicted N and C abundances in the alloy melts from both scenarios with N and C concentrations in the parent cores of magmatic iron meteorites. Our results show that in comparison to EMOs, protoplanets having IMOs satisfy N and C contents of the parent cores with substantially lower amounts of bulk N and C present in the parent body during core formation. As the required bulk N and C contents for IMOs and EMOs are in the sub-chondritic and chondritic range, respectively, N and C fractionation models alone cannot be used to distinguish the prevalence of these two end-member differentiation regimes. A comparison of N and C abundances in chondrites with their peak metamorphic temperatures suggests that protoplanetary interiors could lose a substantial portion of their N and C inventories with increasing degrees of thermal metamorphism.Comment: 19 pages, 8 figures, 1 tabl