The biological antagonism between copper and molybdenum, first observed when cattle developed copper deficiencies after ingesting high levels of plant-born molybdenum, is currently being used in humans to treat two conditions: Wilson's Disease as well as several forms of metastatic cancer. There is surprisingly little known about the interaction of...
As scientists use the tools of computational and complex systems theory to broaden science perspectives (e.g., Bar-Yam, 1997; Holland, 1995; Wolfram, 2002), so can middle-school students broaden their perspectives using appropriate tools. The goals of this dissertation project are to build, study, evaluate, and compare activities designed to foster both...
In May 1991 the allied armies of the Eritrean People’s Liberation Front (EPLF) and the Ethiopian People’s Revolutionary Democratic Front (EPRDF) overthrew the 27-year military regime (Dergue) in Ethiopia. During the succeeding 27 years, the EPRDF-dominated government attracted one of the highest per capita levels of external aid in the...
Banquet lecture for the 37th annual conference of the Sudans Studies Association in conjunction with the 70th anniversary of the Program of African Studies at Northwestern University, May 12, 2018
A tetramer model for HIV-1 Integrase (IN) with DNA representing the LTR termini was previously assembled which predicted amino acid residues on the enzyme surface that interact with the LTR termini (Chen et al, 2006). A separate structural alignment of HIV-1, SIV, and ASV INs predicted which of these residues...
The adhesive strategies of living creatures are diverse, ranging from temporary to permanent adhesions with various functions such as locomotion, self-defense, communication, colony formation, and so on. The classic example of temporary adhesion is the gecko, which is known for its ability to walk along vertical and even inverted surfaces;...
The textbook proceeds with an introduction to theory and concept building, moves to an explanation of causal inference (how do we 'know' whether something is causal?), and then provides a quick introduction to data and hypothesis testing. Following that, each chapter is devoted to a particular research method used within...
When this testimony was given, there was still hope that Ibrahim Babangida would transfer the presidency to the elected Moshood Abiola before he left office on August 27, 1993. In that way, Nigeria would join the wave of post-Cold War democratizing nations. I had earlier called for a “transition in...
Understanding how spin waves propagate through ferromagnets is an important component of a wider international effort to create spintronic devices. In this thesis, we develop a propagating spin wave spectroscopy to make a variety of measurements on thin films of Yttrium Iron Garnet (YIG), a material known for having long...
"Recently, there has been a public push for the film industry to improve female representation; subsequently, DC and Marvel released female-lead films Wonder Woman and Captain Marvel to critical praise and record box office figures. Strictly looking at industry measures of success (critics’ reviews and box office totals) it would...
