8,036 research outputs found
Massive pulmonary embolism with acute cor pulmonale
No full textAdam J Nelson, Geoffrey R Wong, Ross Roberts-Thomson, Saman L Parva
Cloning, purification and characterisation of human and mouse ADAM 8 sheddase activity
No full textAl-Riyami H. Cloning, purification and characterisation of human and mouse ADAM 8 sheddase activity. Bielefeld (Germany): Bielefeld University; 2006
Cor Medusae: Giant coronary arteriovenous fistula
No full textAlso published as: Corazón de medusa (cor medusae): fístula arteriovenosa coronaria giganteGeoffrey R. Wong, Adam J. Nelson, and Adil Rajwan
Like a house afire: cardiac sarcoidosis
No full textJames D. Richardson, Michael S. Cunnington, Adam J. Nelson, Julie A. Bradley, Karen S. L. Teo, Stephen G. Worthley, Matthew I. Worthle
Stress-induced cardiomyopathy and possible link to cerebral executive function: a case report
No full textSamuel L. Sidharta, Jithin K. Sajeev, Adam J. Nelson, Jennifer C. Cooke, and Matthew I. Worthle
Variations in coronary lumen dimensions measured In vivo
No full textLetter to the EditorRishi Puri, Adam J. Nelson, Gary Y. H. Liew, Stephen J. Nicholls, Angelo Carbone, Dennis T. L. Wong, James E. Harvey, Kiyoko Uno, Barbara Copus, Darryl P. Leong, John F. Beltrame, Stephen G. Worthley, Matthew I. Worthle
Transforming Power Relationships: Leadership, Risk, and Hope. IHS Political Science Series No. 135, May 2013
No full textChronic communal conflicts resemble the prisoner’s dilemma. Both communities prefer peace to war. But neither trusts the other, viewing the other’s gain as its own loss, so
potentially shared interests often go unrealized.
Achieving positive-sum outcomes from apparently zero-sum struggles requires a kind of riskembracing leadership. To succeed leaders must: a) see power relations as potentially
positive-sum; b) strengthen negotiating adversaries instead of weakening them; and c) demonstrate hope for a positive future and take great personal risks to achieve it.
Such leadership is exemplified by Nelson Mandela and F.W. de Klerk in the South African democratic transition. To illuminate the strategic dilemmas Mandela and de Klerk faced, we examine the work of Robert Axelrod, Thomas Schelling, and Josep Colomer, who highlight important dimensions of the problem but underplay the role of risk-embracing leadership. Finally we discuss leadership successes and failures in the Northern Ireland settlement and the Israeli-Palestinian conflict
How arbitrage-free is the Nelson-Siegel Model?
No full textWe test whether the Nelson and Siegel (1987) yield curve model is arbitrage-free in a statistical sense. Theoretically, the Nelson-Siegel model does not ensure the absence of arbitrage opportunities, as shown by Bjork and Christensen (1999). Still, central banks and public wealth managers rely heavily on it. Using a non-parametric resampling technique and zero-coupon yield curve data from the US market, we find that the no-arbitrage parameters are not statistically different from those obtained from the NS model, at a 95 percent confidence level. We therefore conclude that the Nelson and Siegel yield curve model is compatible with arbitrage-freeness. To corroborate this result, we show that the Nelson-Siegel model performs as well as its no-arbitrage counterpart in an out-of-sample fore-casting experiment. JEL Classification: C14, C15, G12Affine term structure models, Nelson-Siegel model, No-arbitrage restrictions, non-parametric test
Knowledge about knowledge since Nelson & Winter: a mixed record
No full textProgress in our understanding of the role of knowledge in the economy, based on Nelson and Winter's book published in 1982, has been mixed. It has been greatest when their concepts have been enriched by empirical evidence, often coming from outside evolutionary economics. It has been least when discussions have been mainly theoretical, and constrained within evolutionary economics.knowledge, innovation, technical change
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