Sparse Deconvolution (An MM Algorithm)
Ivan Selesnick
This tutorial describes a computationally efficient method for deconvolution of 1-D signals. It is assumed that the convolution system is described by a difference equation. The algorithm is […]

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McMaster Welcome Week 2012
A week in review of McMaster University's 2012 Welcome Week experience. GO MAC GO!
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Think CSUN: The Presidential Race, Down to the Wire
Lawrence Becker, an expert on American presidential politics, shares a few observations on this November's race between President Barack Obama and former Massachusetts Governor Mitt Romney. Dr. Becker is the chair and Eugene C. Price Professor in CSUN's Department of Political Science. (Recorded October 5, 2012.) "Think CSUN" is a video series produced by University Advancement, featuring California State University, Northridge faculty experts. These thought leaders were asked to speak clearly,
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Dr. Tom Abel - "Cosmic Dawn: The First Star in the Universe"
"Cosmic Dawn: The First Star in the Universe" Dr. Tom Abel - Stanford University What was the first thing in the Universe? A black hole or a star? How did it form? Even our biggest and best telescopes cannot tell us. Direct calculation with supercomputers, however, can. The first luminous objects in the Universe were very massive stars shining one million times as brightly as our sun. They died quickly and seeded the cosmos with the chemical elements necessary for life. One star at a time, gala
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Upper Beginner #5 - Listen Out for Japanese Earthquake Announcements
Learn Japanese with JapanesePod101.com! Since you have never felt an earthquake before, you are terrified of them. Now that you’re staying abroad in Japan, you decide you should prepare, just in case! You decide to assemble an emergency kit for your Japanese home. You buy medical supplies, bottled water, flashlights, candles, and batteries, and you [...]
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umichstories: Cyclone Global Navigation Satellite System
University of Michigan professor Dr. Chris Ruf is the principal investigator of a new NASA mission to create satellites that can measure the size, shape, strength and movement of hurricanes: CYGNSS (Cyclone Global Navigation Satellite System)
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Hold It
In this outdoor activity/field trip, learners investigate the special shapes, holding structures and holding behaviors that real organisms use in streams, rivers, creeks or coast intertidal zones to avoid being swept away by moving water. Learners then create their own "animal" with holding adaptations. The activity includes drawings that detail helpful equipment such as bug boxes and dip nets, as well as instructions for making a milk-carton observation tray and flow-through trough.
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Dr. Robert Lefkowitz on Science, Life and 'Eureka' Moments
Dr. Robert Lefkowitz, a winner of the 2012 Nobel Prize in Chemistry, discusses his approach to science and life in a public conversation Nov. 1, 2012, with Duke University President Richard H. Brodhead. Lefkowitz is a Howard Hughes Medical Institute investigator who has spent his entire 39-year research career at the Duke University Medical Center. Learn more here: http://spotlight.duke.edu/lefkowitz.
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Lluvia de Albóndigas - clip corto
Esta película de animación de Sony está basada en un cuento popular. Se puede mostrar a estudiantes en una clase de español o a estudiantes que han leído el libro. (1:56)
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Sri Lanka's bloody civil war


Author(s): The Economist

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Duke Medicine Profiles: Anne Beaven, MD
Get to know Duke Medicine's cancer doctors.
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Meet Shanghai's 'Guy Tais,' house-husbands with style
Nov. 21 - With more women coming to Shanghai on fat expat packages, the city is seeing a rise in trailing husbands, and they're banding together. Call them the 'Guy Tais'. Jane Lee reports.
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Understanding Liberal Democracy

[Understanding Liberal Democracy: Essays in Political Philosophy • By Nicholas Wolterstorff • Edited by Terence Cuneo • Oxford University Press, 2012 • Xii+ 385 pages]

Dr. Chin-Feng Hwang: Academic Spotlight
Dr. Chin-Feng Hwang, associate professor in the William H. Darr School of Agriculture, was recently awarded funding to participate in a Specialty Crop Research Initiative project. The goal of this project is to accelerate improvement of various grape plants by working at the molecular level of the plants. The work is known as "molecular marking" and "molecular breeding." The work will ultimately assist in the breeding of the Norton grape, which is the official grape of the state of Missouri.
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Panel 2: Entrepreneur-VC Relationship in Energy
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Estadística II
Los estudios en Administración y dirección de empresas tienen un componente cuantitativo importante que hace necesario el conocimiento y uso de herramientas estadísticas, tanto en asignaturas específicas de métodos cuantitativos como en asignaturas generales sobre Economía. La asignatura proporcionará procedimientos para cuantificar situaciones de incertidumbre a través de diversas distribuciones de probabilidad, así como metodología para obtener conclusiones acerca de una població
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Lesson 01 - One Minute Romanian
In lesson 1 of One Minute Romanian you will learn how to say 'hello' and 'goodbye' in Romanian. Remember - even a few phrases of a language can help you make friends and enjoy travel more. Find out more about One Minute Romanian at our website - http://www.oneminutelanguages.com.Author(s): No creator set

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Europe Day Ahead: Breather for euro zone finmins
Dec. 3 - Euro zone finance ministers gather for another Brussels summit, but a warm reception for Greece's bond buyback plan today means there's a little less tension than expected.
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The Marxian Doctrine of "Ideology"

[This article is excerpted from volume 2, chapter 12 of An Austrian Perspective on the History of Economic Thought (1995). An MP3 audio file of this chapter, narrated by Jeff Riggenbach, is available for download.]

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7.2 Is the equilibrium position unfavourable?

The first possibility is that the reaction system has been able to reach chemical equilibrium, but the equilibrium position is not favourable. How does this come about? If equilibrium has been reached, then the forward (left to right) and backward (right to left) reactions are occurring at equal rates. In such a case, we can emphasise the fact by writing the reaction with two opposed, half-headed arrows:

2NO(g) +
Author(s): The Open University

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