Human Ecology Review, Vol. 16, No. 1, 2009 © Society for Human Ecology The collection of articles for this special section is primarily the result of a symposium organized by Dr. Tom Dietz that took place at the XIV International Conference of the Society for Human Ecology. The symposium as well as this collection of papers represents a unique cross-section of scholars at various stages in thei...

Boolean-width is a recently introduced graph parameter. Many problems are fixed parameter tractable when parametrized by boolean-width, for instance "Minimum Weighted Dominating Set" (MWDS) problem can be solved in O∗(23k) time given a boolean-decomposition of width k, hence for all graph classes where a boolean-decomposition of width O(log n) can be found in polynomial time, MWDS can be solved...

Introduction age growth has been a persistent challenge for the United States economy in recent decades (Mishel, 2013). Middle class wage growth has been weak while job polarization has widened the gap in wages between the highest and lowest paying jobs. Many argue that technological change and globalization are the two main economic factors behind these trends (Dietz, 2012). These problems hav...

Ji Chen,1,2,3 Andrea Zen,1,2,3 Jan Gerit Brandenburg,2,3,4 Dario Alfè,1,2,3,5 and Angelos Michaelides1,2,3,* 1Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom 2London Centre for Nanotechnology, 17-19 Gordon Street, London WC1H 0AH, United Kingdom 3Thomas Young Centre, University College London, 20 Gordon Street, London WC1H 0AJ, Unite...

Lily and Yuh Nung Jan's collaboration started with the identification of Shaker as the first known potassium channel gene and has flourished to produce over 100 former students and postdocs who are now leading their own research groups. In an interview with Neuron, they reflect on their scientific discoveries, serendipity in science, and the value of curiosity-driven basic research.

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One of the most general frameworks for phrasing control problems for complex, redundant robots is operational-space control. However, while this framework is of essential importance for robotics and well understood from an analytical point of view, it can be prohibitively hard to achieve accurate control in the face of modeling errors, which are inevitable in complex robots (e.g. humanoid robot...

Ambiguous beliefs may lead to speculative trade and speculative bubbles. We demonstrate this by showing that the classical Harrison and Kreps (1978) example of speculative trade among agents with heterogeneous beliefs can be replicated with agents having common ambiguous beliefs. More precisely, we show that the same asset prices and pattern of trade can be obtained in equilibrium with agents’ ...