Population Games and Evolutionary Dynamics. MIT Press, Cambridge, MA, 2011, xxv + 589 pp., ISBN 9... more Population Games and Evolutionary Dynamics. MIT Press, Cambridge, MA, 2011, xxv + 589 pp., ISBN 978-0-262-19587-4, $65. by William H. Sandholm Review by: Bonnie Shulman The American Mathematical Monthly, Vol. 119, No. 4 (April 2012), pp. 352-356 Published by: Mathematical Association of America Stable URL: http://www.jstor.org/stable/10.4169/amer.math.monthly.119.04.352 . Accessed: 16/10/2012 16:29
What can be done to transform modern science and politics, which currently deliver their benefits... more What can be done to transform modern science and politics, which currently deliver their benefits only to an elite few, into truly democratic practices that serve all of the world's people? This is the question Sandra Harding sets out to answer in Sciences from Below. Along the way she presents a stunning synthesis of research from post-positivist, feminist and postcolonial science studies scholars. Her work, although unique in its attempt to integrate all these different research agendas, shares the goals of the group of STS activists who advocate for an "applied science studies" to inform social justice projects.
The ASSISTments project from Worcester Polytechnic Institute provides a free web-based intelligen... more The ASSISTments project from Worcester Polytechnic Institute provides a free web-based intelligent tutoring system including two levels of differentiation, that are manually programmed by teachers and researchers. Problems assigned through ASSISTments can be programmed in trees, where the sequence of problems adapts to the student’s performance on each question. Within each problem, if a student enters an incorrect response the ASSISTments system provides scaffolded feedback to target the student’s misconception. This thesis begins to develop an educational data mining algorithm to automate this differentiation. First, an adaption of Alsahaf’s mixed k-means clustering algorithm is proposed to handle a mix of categorical and numeric data. Second, the algorithm is implemented in MATLAB and its performance is compared to Alsahaf’s results on benchmark data sets. Finally, the MATLAB implementation is applied to ASSISTments data sets from 2009 and 2012 to develop a predictive model. Mixe...
The entire editorial and publishing team for PRIMUS takes this moment here to thank all the many ... more The entire editorial and publishing team for PRIMUS takes this moment here to thank all the many individuals who have served as referees in recent months. The peer-review process is critical to bringing high quality and relevant articles to PRIMUS readers, and this process depends on the time and commitment of the dedicated and knowledgeable experts in the field who volunteer their considerable time and efforts to referee for the journal. At this time, we publicly credit our referees to acknowledge and endorse their work and, even more importantly, to remind ourselves of how the journal is not possible without their outstanding efforts. Below is an alphabetical list of the many recent PRIMUS referees. We are deeply grateful to each and every one of them for their contributions to PRIMUS. Their broad expertise, insightful questions, thoughtful criticisms, and expository recommendations make the papers we publish unequivocally better.
In this introduction to the PRIMUS Special Issue on Mathematics for Social Justice we provide a b... more In this introduction to the PRIMUS Special Issue on Mathematics for Social Justice we provide a brief history of social justice in the context of undergraduate mathematics pedagogy and explain the purpose and motivation behind this movement in undergraduate education.
Wave propagation in solar coronal loops are studied by finding the modes of a magnetized cylinder... more Wave propagation in solar coronal loops are studied by finding the modes of a magnetized cylinder which joins smoothly to an exterior medium across a transition region. The density inhomogeneity was treated first as a step function and next as a continuous function with a transition region joining the internal and external value across the cylinder's radius. The spectra for both models were then computed employing analytical and numerical procedures. The spectra for both models were then computed employing analytical and numerical procedures. The sharp-boundary case consisted of a purely discrete spectrum. A continuous profile was found to introduce a continuous spectrum. For the specific continuous profile chosen, the complex discrete spectrum was perturbed from the sharp boundary case.
Wave propagation through inhomogeneous media is of interest in many domains of physics. In partic... more Wave propagation through inhomogeneous media is of interest in many domains of physics. In particular, the study of magnetohydrodynamic (MHD) waves in inhomogeneous plasmas is an area of active research. The propagation of waves by means of solar coronal loops is of primary interest to solar physicists. A solar coronal loop is generally modelled as magnetic fluxtube of radius a
Wave propagation through inhomogeneous media is of interest in many domains of physics. In partic... more Wave propagation through inhomogeneous media is of interest in many domains of physics. In particular, the study of magnetohydrodynamic (MHD) waves in inhomogeneous plasmas is an area of active research. The propagation of waves by means of solar coronal loops is of primary interest to solar physicists. A solar coronal loop is generally modelled as magnetic fluxtube of radius a and length L. In the simplest models the loop, which is curved, is assumed to be a straight cylinder. The standard procedure is to perturb an equilibrium model of a cylinder embedded in an infinite medium, and thereby set up MHD waves in the cylinder. The waves are usually studied in a sharp boundary model. We consider what happens if, instead of the sharp boundary condition at r = a the density varies continuously. Is the discrete spectrum perturbed, and if so, how? Does a continuous density inhomogeneity introduce new continuous spectrum?. To answer these questions, we modeled a solar coronal loop as a cyli...
Contemporary Sociology: A Journal of Reviews, 2009
In Sciences from Below: Feminisms, Postcolonialities, and Modernities, Sandra Harding presents us... more In Sciences from Below: Feminisms, Postcolonialities, and Modernities, Sandra Harding presents us with an ultimatum: 'No more can the very contrast between the modern and the traditional be thought to reveal more than it hides' (p. 191). ... To read this article in full you may ...
Population Games and Evolutionary Dynamics. MIT Press, Cambridge, MA, 2011, xxv + 589 pp., ISBN 9... more Population Games and Evolutionary Dynamics. MIT Press, Cambridge, MA, 2011, xxv + 589 pp., ISBN 978-0-262-19587-4, $65. by William H. Sandholm Review by: Bonnie Shulman The American Mathematical Monthly, Vol. 119, No. 4 (April 2012), pp. 352-356 Published by: Mathematical Association of America Stable URL: http://www.jstor.org/stable/10.4169/amer.math.monthly.119.04.352 . Accessed: 16/10/2012 16:29
What can be done to transform modern science and politics, which currently deliver their benefits... more What can be done to transform modern science and politics, which currently deliver their benefits only to an elite few, into truly democratic practices that serve all of the world's people? This is the question Sandra Harding sets out to answer in Sciences from Below. Along the way she presents a stunning synthesis of research from post-positivist, feminist and postcolonial science studies scholars. Her work, although unique in its attempt to integrate all these different research agendas, shares the goals of the group of STS activists who advocate for an "applied science studies" to inform social justice projects.
The ASSISTments project from Worcester Polytechnic Institute provides a free web-based intelligen... more The ASSISTments project from Worcester Polytechnic Institute provides a free web-based intelligent tutoring system including two levels of differentiation, that are manually programmed by teachers and researchers. Problems assigned through ASSISTments can be programmed in trees, where the sequence of problems adapts to the student’s performance on each question. Within each problem, if a student enters an incorrect response the ASSISTments system provides scaffolded feedback to target the student’s misconception. This thesis begins to develop an educational data mining algorithm to automate this differentiation. First, an adaption of Alsahaf’s mixed k-means clustering algorithm is proposed to handle a mix of categorical and numeric data. Second, the algorithm is implemented in MATLAB and its performance is compared to Alsahaf’s results on benchmark data sets. Finally, the MATLAB implementation is applied to ASSISTments data sets from 2009 and 2012 to develop a predictive model. Mixe...
The entire editorial and publishing team for PRIMUS takes this moment here to thank all the many ... more The entire editorial and publishing team for PRIMUS takes this moment here to thank all the many individuals who have served as referees in recent months. The peer-review process is critical to bringing high quality and relevant articles to PRIMUS readers, and this process depends on the time and commitment of the dedicated and knowledgeable experts in the field who volunteer their considerable time and efforts to referee for the journal. At this time, we publicly credit our referees to acknowledge and endorse their work and, even more importantly, to remind ourselves of how the journal is not possible without their outstanding efforts. Below is an alphabetical list of the many recent PRIMUS referees. We are deeply grateful to each and every one of them for their contributions to PRIMUS. Their broad expertise, insightful questions, thoughtful criticisms, and expository recommendations make the papers we publish unequivocally better.
In this introduction to the PRIMUS Special Issue on Mathematics for Social Justice we provide a b... more In this introduction to the PRIMUS Special Issue on Mathematics for Social Justice we provide a brief history of social justice in the context of undergraduate mathematics pedagogy and explain the purpose and motivation behind this movement in undergraduate education.
Wave propagation in solar coronal loops are studied by finding the modes of a magnetized cylinder... more Wave propagation in solar coronal loops are studied by finding the modes of a magnetized cylinder which joins smoothly to an exterior medium across a transition region. The density inhomogeneity was treated first as a step function and next as a continuous function with a transition region joining the internal and external value across the cylinder's radius. The spectra for both models were then computed employing analytical and numerical procedures. The spectra for both models were then computed employing analytical and numerical procedures. The sharp-boundary case consisted of a purely discrete spectrum. A continuous profile was found to introduce a continuous spectrum. For the specific continuous profile chosen, the complex discrete spectrum was perturbed from the sharp boundary case.
Wave propagation through inhomogeneous media is of interest in many domains of physics. In partic... more Wave propagation through inhomogeneous media is of interest in many domains of physics. In particular, the study of magnetohydrodynamic (MHD) waves in inhomogeneous plasmas is an area of active research. The propagation of waves by means of solar coronal loops is of primary interest to solar physicists. A solar coronal loop is generally modelled as magnetic fluxtube of radius a
Wave propagation through inhomogeneous media is of interest in many domains of physics. In partic... more Wave propagation through inhomogeneous media is of interest in many domains of physics. In particular, the study of magnetohydrodynamic (MHD) waves in inhomogeneous plasmas is an area of active research. The propagation of waves by means of solar coronal loops is of primary interest to solar physicists. A solar coronal loop is generally modelled as magnetic fluxtube of radius a and length L. In the simplest models the loop, which is curved, is assumed to be a straight cylinder. The standard procedure is to perturb an equilibrium model of a cylinder embedded in an infinite medium, and thereby set up MHD waves in the cylinder. The waves are usually studied in a sharp boundary model. We consider what happens if, instead of the sharp boundary condition at r = a the density varies continuously. Is the discrete spectrum perturbed, and if so, how? Does a continuous density inhomogeneity introduce new continuous spectrum?. To answer these questions, we modeled a solar coronal loop as a cyli...
Contemporary Sociology: A Journal of Reviews, 2009
In Sciences from Below: Feminisms, Postcolonialities, and Modernities, Sandra Harding presents us... more In Sciences from Below: Feminisms, Postcolonialities, and Modernities, Sandra Harding presents us with an ultimatum: 'No more can the very contrast between the modern and the traditional be thought to reveal more than it hides' (p. 191). ... To read this article in full you may ...
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