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, specifically about factor endowments and factor intensities, and from there it uses straightforward logic to construct the HO model. In easy five steps we show how to build the HO model and derive its three theorems, specifically, pattern of trade, factor price equalization, and income distribution.

Abstract One of the struggles in a rural state is providing the cameras and two way audio systems in the patients rooms that allows the remote center to be in direct communication with the staff providing care at the bedside.

W hat does it take to be an effectiveteaching assistant in political sci-ence? This is a subject of interest not only to first time graduate teaching as-sistants, but also to the professors who make use of them, the directors of un-dergraduate studies who must live with their results, and the directors of gradu-ate studies who must help prepare them for their first teaching jobs. But while the subject of training graduate students to teach is of live interest to numerous people, comparatively little direct atten-tion has been accorded it. While 83 % of graduate students say that “enjoyment of teaching ” was one of the factors that

virtual classroom-in ten easy steps for the reader to follow. The authors of this paper do not claim that by following the steps outlined in this paper will unequivocally lead to an absolute success; however, there are good reasons to believe the opposite is true. In other words, failing to follow

In this paper, we present a method for calibrating intrinsic and extrinsic camera parameters. This algorithm can easily be modified by other users to suit their particular calibration needs, without requiring a high precision calibration target or complicated linear algebra. The algorithm uses controlled motions and a single light source to simulate calibration targets in convenient 3D locations. These convenient calibration targets enable us to simplify the calibration algorithm and gather dense data for lens distortion. Dense data makes the distortion correction more accurate than traditional low-order polynomial fits, and allows us to calibrate wide-angle lenses (? 70 ffi field of view). 1 Introduction A wide variety of computer vision algorithms require some type of camera calibration. Most applications do not require high precision but, rather, a flexible, easily-understood algorithm which delivers moderately good precision for a wide range of cameras and lenses. In particular...

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I came to Oxford as an undergraduate in Human Sciences. This was where I first encountered social anthropology and its power as a method of comparative and reflexive critique. But I was also taught to think about humans as simultaneously cultural and biological organisms. In my second year I spent the summer researching snakebites in a missionary hospital in Ecuador. It was this experience that led me to apply for the MPhil in Medical Anthropology, which I undertook from 2005 to 2007. Here I was introduced to some of the philosophical and practical ways in which humans are bisected between the biological and the cultural, and I was encouraged to look for ways of putting things back together using the critical approaches of medical anthropology and phenomenology. This is what I have been trying to do in my MPhil and DPhil theses, inspired by the holistic vision that underlies both Human Sciences and Medical Anthropology at Oxford.

There is great interest in explaining how beneficial microbiomes are assembled. Antibiotic-producing micro-biomes are arguably the most abundant class of beneficial microbiome in nature, having been found on corals, arthropods, molluscs, vertebrates and plant rhizospheres. An exemplar is the attine ants, which culti-vate a fungus for food and host a cuticular microbiome that releases antibiotics to defend the fungus from parasites. One explanation posits long-term vertical transmission of Pseudonocardia bacteria, which (some-how) evolve new compounds in arms-race fashion against parasites. Alternatively, attines (somehow) selec-tively recruit multiple, non-coevolved actinobacterial genera from the soil, enabling a ‘multi-drug ’ strategy against parasites. We reconcile the models by showing that when hosts fuel interference competition by providing abundant resources, the interference competition favours the recruitment of antibiotic-producing (and-resistant) bacteria. This partner-choice mechanism is more effective when at least one actinobacterial symbiont is vertically transmitted or has a high immigration rate, as in disease-suppressive soils.