Large Area Crop Inventory Experiment (LACIE). The boundary pixel study in Kansas and North Dakota

The author has identified the following significant results. The statistical mapping approach to handling boundary pixels can be used as a standard for objectively comparing the cluster based technique, the maximum likelihood estimate based technique, and multicategory labeling

Earthquake fatalities: the interaction of nature and political economy

In our theoretical model, we show that as per capita income decreases and the level of inequality increases, different segments of society are less likely to agree on the distribution of the burden of the necessary collective action, causing the relatively-wealthy simply to self-insure against the disaster while leaving the relatively-poor to its mercy. We then evaluate 269 large earthquakes occurring worldwide (1960-2002), taking into account other factors such as an earthquake's magnitude, depth and proximity to population centers. Using a Negative Binomial estimation strategy with both random and fixed estimators, we find strong evidence of the theoretical model’s predictions.Earthquake, Fatalities, Nature, Political economy

In Tribute

Photograph of a statue of the A&T Four, captioned with a quote from Franklin McCainhttps://digital.library.ncat.edu/atfour/1018/thumbnail.jp

Managerial Stock Ownership As A Corporate Control Device: When Is Enough, Enough?

It has long been accepted that managerial stock ownership, beyond some range of possible entrenchment, can be an effective means of aligning the interests of professional managers with those of a firm’s outside owners to the benefit of firm performance. In this paper, we offer evidence on the effectiveness of managerial stock ownership as a corporate control device by analyzing the behavior of 81 thrift institutions operating over the six-year period, 1989-1994. Based on the estimation of stochastic cost and profit frontiers, as well as other performance measures, our results suggest that managerial stock ownership provides an effective corporate control device. However, this device is only effective as managerial holdings surpass about 33% of outstanding shares for improvements in cost efficiency and about 40% for profit efficiency

Tried & true

Internships may be the oldest engaged learning activity on campus, but they remain a popular method for students to examine their academic and career interests

Effect of Edge Roughness on Electronic Transport in Graphene Nanoribbon Channel Metal Oxide Semiconductor Field-Effect Transistors

Results of quantum mechanical simulations of the influence of edge disorder on transport in graphene nanoribbon metal oxide semiconductor field-effect transistors (MOSFETs) are reported. The addition of edge disorder significantly reduces ON-state currents and increases OFF-state currents, and introduces wide variability across devices. These effects decrease as ribbon widths increase and as edges become smoother. However the bandgap decreases with increasing width, thereby increasing the band-to-band tunneling mediated subthreshold leakage current even with perfect nanoribbons. These results suggest that without atomically precise edge control during fabrication, MOSFET performance gains through use of graphene will be difficult to achieve.Comment: 8 pages, 5 figure