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Davidson, NC, United States

Davidson College is a private liberal arts college in Davidson, North Carolina. The college has graduated 23 Rhodes Scholars. In the past decade, Davidson has consistently been ranked among the best liberal arts colleges in the country by U.S. News & World Report. Forbes ranked Davidson 22nd overall in their "America's Top Colleges" list in 2014, and 1st among southern colleges. Majors are offered in more than twenty fields; Davidson also offers several minors and self-designed interdisciplinary options. Wikipedia.


Smith M.A.,Davidson College | Lynch W.J.,University of Virginia
Frontiers in Psychiatry | Year: 2012

Epidemiological studies reveal that individuals who engage in regular aerobic exercise are less likely to use and abuse illicit drugs. Until recently, very few studies had examined the causal influences that mediate this relationship, and it was not clear whether exercise was effective at reducing substance use and abuse. In the past few years, several preclinical studies have revealed that exercise reduces drug self-administration in laboratory animals. These studies have revealed that exercise produces protective effects in procedures designed to model different transitional phases that occur during the development of, and recover from, a substance use disorder (e.g., acquisition, maintenance, escalation, and relapse/reinstatement of drug use). Moreover, recent studies have revealed several behavioral and neurobiological consequences of exercise that may be responsible for its protective effects in these assays. Collectively, these studies have provided convincing evidence to support the development of exercise-based interventions to reduce compulsive patterns of drug intake in clinical and at-risk populations. © 2012 Smith and Lynch. Source


Menkhaus K.,Davidson College
Global Food Security | Year: 2012

The principal obstacle to effective humanitarian response in the 2011 Somali famine was lack of access to famine victims. Poor access can be traced to five distinct bottlenecks: (1) Al-Shabaab's obstructionist policies, which prevented most international aid agencies from operating in the famine zones; (2) US suspension of food aid into areas of Somalia controlled by Al-Shabaab, and other constraints on aid agencies related to counter-terrorism legislation; (3) chronic insecurity pre-dating Al-Shabaab and US policies, which led most aid agencies to suspend or close operations in south Somalia by 2009; (4) diversion of food aid by armed groups and corrupt officials in the Transitional Federal Government (TFG) which controlled the capital Mogadishu; and (5) a "privilege gap" in Somali society, in which low status groups lacked the social capital to access relief aid, remittances, and lateral transfers from fellow Somalis. All five of these impediments must be addressed if humanitarian access is to be improved in the future. © 2012 Elsevier B.V. Source


Mossinghoff M.J.,Davidson College
Journal of Combinatorial Theory. Series A | Year: 2011

For a positive integer n that is not a power of 2, precisely the same family of convex polygons with n sides is optimal in three different geometric problems. These polygons have maximal perimeter relative to their diameter, maximal width relative to their diameter, and maximal width relative to their perimeter. We study the number of different convex n-gons E(n) that are extremal in these three isodiametric and isoperimetric problems. We first characterize the extremal set in terms of polynomials with {-1,0,1} coefficients by investigating certain Reuleaux polygons. We then analyze the number of dihedral compositions of an integer to derive a lower bound on E(n) by obtaining a precise count of the qualifying polygons that exhibit a certain periodic structure. In particular, we show that E(n)>p4n.2n/p if p is the smallest odd prime divisor of n. Further, we obtain an exact formula for E(n) in some special cases, and show that E(n)=1 if and only if n=p or n=2p for some odd prime p. We also compute the precise value of E(n) for several integers by enumerating the sporadic polygons that occur in the extremal set. © 2011 Elsevier Inc. Source


Menkhaus K.,Davidson College
Disasters | Year: 2010

Somalia today is the site of three major threats: the world's worst humanitarian crisis; the longest-running instance of complete state collapse; and a robust jihadist movement with links to Al-Qa'ida. External state-building, counter-terrorism and humanitarian policies responding to these threats have worked at cross-purposes. State-building efforts that insist humanitarian relief be channelled through the nascent state in order to build its legitimacy and capacity undermine humanitarian neutrality when the state is a party to a civil war. Counter-terrorism policies that seek to ensure that no aid benefits terrorist groups have the net effect of criminalising relief operations in countries where poor security precludes effective accountability. This paper argues that tensions between stabilisation and humanitarian goals in contemporary Somalia reflect a long history of politicisation of humanitarian operations in the country. © 2010 The Author(s). Journal compilation © Overseas Development Institute, 2010. Source


Belloni M.,Davidson College | Robinett R.W.,Pennsylvania State University
Physics Reports | Year: 2014

The infinite square well and the attractive Dirac delta function potentials are arguably two of the most widely used models of one-dimensional bound-state systems in quantum mechanics. These models frequently appear in the research literature and are staples in the teaching of quantum theory on all levels. We review the history, mathematical properties, and visualization of these models, their many variations, and their applications to physical systems. © 2014 Elsevier B.V. Source

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