We describe a mathematical framework for dimensional reduction, learning and organization of databases . The database could be a matrix of a linear transformation for which the goal is to reorganize the matrix so as to achieve compression and fast algorithms. Or the database could be a collection of documents and their vocabulary, an array of se...
Creator:
Coifman, Ronald Raphael (Yale University)
Created:
2011-09-27
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
In interior point methods for linear programming, the central path starts at the analytic center of a polytope. The collection of analytic centers corresponding to a given constraint matrix form an algebraic variety called a reciprocal linear space. We investigate this variety through its Chow form, namely the hypersurface in the Grassmannian of...
Creator:
Vinzant, Cynthia (North Carolina State University)
Created:
2015-02-24
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
The theory of inhomogeneous analytic and polynomial materials is developed. These are media where the coefficients entering the equations involve analytic functions or polynomials. Three types of analytic or polynomial materials are identified. The first two types involve an integer p. If p takes its maximum value then we have a complete analyti...
Creator:
Milton, Graeme Walter (The University of Utah)
Created:
2016-10-06
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Understanding how biological sequences encode structural and functionalinformation is a fundamental scientific challenge. For RNA viral genomes,the information encoded in the sequence extends well-beyond their proteincoding role to the role of intra-sequence base pairing in viral packaging,replication, and gene expression. Working with the Paria...
Creator:
Heitsch, Christine E. (Georgia Institute of Technology)
Created:
2007-10-30
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
in collaboration with Gunther Uhlmann and Hart SmithIn reflection seismology one places sources and receivers on theEarth's surface. The source generates waves in the subsurface that arereflected where the medium properties vary discontinuously; thesereflections are observed in all the receivers. The data thus obtainedare commonly modeled by a s...
Creator:
De Hoop, Maarten (Purdue University)
Created:
2005-10-21
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
We study the effect of the uncertainty of wind power on the angular stability of power systems, including a single-machine, infinite-bus (SMIB) system, and a three-generator, nine-bus multi-machine system, which are subject to a self-clearing three-phase fault. Probability density function (PDF) and Monte Carlo (MC) methods are used to calculate...
Creator:
Tartakovsky, Alexandre (Battelle Pacific Northwest National Laboratory)
Created:
2016-02-22
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
In this talk, I will describe some recent results on analytic aspects of both equilibrium solutions and hydrodynamics of a simplified model of biaxial nematic liquid crystals proposed by Govers, Vertogen, and Leslie 1980’s, which is represented by a pair of orthogonal unit-vector fields. This model is an extension of the Oseen-Frank theory,whi...
Creator:
Wang, Changyou (Purdue University)
Created:
2018-01-19
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Implantable cardiac devices collect physiologic parameters and heart rhythm metrics continuously on heart failure patients. Remote monitoring services can combine this information with daily blood pressure, weights and symptoms into a risk prediction algorithm and tailor patient treatment. To determine the clinical benefits of using such a risk ...
Creator:
Bergemann, Tracy (Medtronic)
Created:
2018-11-07
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
I show some attempts in my research group for understanding global phase space structures of dynamics from experimental data. I will discuss the following problems as case studies. One problem is to understand the basin of attraction of the human bipedal locomotion, where we study simple mathematical models of passive bipedal locomotion and loco...
Creator:
Kokubu, Hiroshi (Kyoto University)
Created:
2014-02-13
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Joint work with Igor R. Kuznetsov and Marc Herant.The transport of labeled G-actin from the mid-lamella region to theleading edge in a highly motile malignant rat fibroblast line hasrecently been studied using fluorescence localization after photobleaching or FLAP (see Zicha et al.[Zicha2003]). The transit timesrecorded in these experiments were...
Creator:
Dembo, Micah (Boston University)
Created:
2008-05-28
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
DNA and RNA are versatile construction materials.By appropriately designing the sequence of bases in each strand, synthetic nucleic acidsystems can be programmed to self-assemble into complex structures that implement dynamic mechanicaltasks. Motivated by the challenge of encoding arbitrary mechanical function intonucleic acid sequences, we are ...
Creator:
Pierce, Niles A. (California Institute of Technology)
Created:
2007-10-29
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Announcement of Nazi party political rally concerning the policies of Chancellor Franz von Papen towards the Nazi party. Image of swastika in lower left corner.
Created:
1932
Contributed By:
University of Minnesota Libraries, Upper Midwest Literary Archives.
Multigrid methods are so-called optimal methods because they can solve a system of N unknowns with O(N) work. This optimality property is crucial for scaling up to huge high-resolution simulations on parallel computers. To achieve this, the multigrid components must be designed with the underlying system in mind, traditionally, the problem geome...
Creator:
Falgout, Robert D. (Lawrence Livermore National Laboratory)
Created:
2010-11-28
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
This speech was aimed at Burroughs employees, and described what planned approaches to problems Burroughs already had in place. Part of this is also on tape BP58. At 10:25 Paul takes a sip of some bad coffee. This seems to be the full version of the address that is edited down into an 8 minute address found at http://purl.umn.edu/199693
Creator:
Burroughs Corporation
Contributor:
Mirabito, Paul
Created:
1978
Contributed By:
University of Minnesota Libraries, Charles Babbage Institute.
For our Public Affairs program this afternoon we present an address by Marcus Raskin, Co-Director of the Institute for Policy Studies in Washington. Raskin was a member of the National Security Council under President Kennedy, a member of the U.S. Disarmament Delegation to the 18 nation Geneva Conference in 1962, and was on the President's Panel...
Creator:
University of Minnesota. Radio Station KUOM
Contributor:
Raskin, Marcus
Created:
1971-11-24
Contributed By:
University of Minnesota Libraries, University Archives.
Cartographic Details: Scale approximately 1:750,000. Relief shown pictorially. Covers area from Benares to Chittigong, from"Botan" [Bhutan] to Bay of Bengal."Published by permission of the court of directors from a drawing in their possession by A. Dury." Includes 1776 dedication by Andrew Dury.
Cartographic Details: Scale approximately 1:750,000. Relief shown pictorially. Covers area from Benares to Chittigong, from"Botan" [Bhutan] to Bay of Bengal."Published by permission of the court of directors from a drawing in their possession by A. Dury." Includes 1776 dedication by Andrew Dury.
Cartographic Details: Scale approximately 1:750,000. Relief shown pictorially. Covers area from Benares to Chittigong, from"Botan" [Bhutan] to Bay of Bengal."Published by permission of the court of directors from a drawing in their possession by A. Dury." Includes 1776 dedication by Andrew Dury.
Cartographic Details: Scale approximately 1:750,000. Relief shown pictorially. Covers area from Benares to Chittigong, from"Botan" [Bhutan] to Bay of Bengal."Published by permission of the court of directors from a drawing in their possession by A. Dury." Includes 1776 dedication by Andrew Dury.
Scratchboard illustration of anaconda on shore with reeds stalking two capybaras in water. Published in "South American Zoo" (Victor W. Von Hagen, 1946), page 133.
Cartographic Details: Scale approximately 1:9,180,000 (E 64°--E 102°/N 36°--N 4°).Relief shown pictorially. Appears in the author's Carey's general atlas, improved and enlarged. 1817. Name burnished out below title, probably J.T. Scott, sculp. In top right margin: 53.
Creator:
Carey, Mathew, 1760-1839; M. Carey & Sons.
Created:
1817
Contributed By:
University of Minnesota Libraries, John R. Borchert Map Library.
Anab Adan Gulaid grew up in Hargeisa, Somalia. After the outbreak of the Somali civil war in late 1990, she left Somalia with several family members and moved to Toronto, Canada, where she went to school and became a Canadian citizen. After marrying her husband, she moved the United States, living first in Chicago and then Minnesota. She is a me...
Creator:
Gulaid, Anab
Created:
2015-07-11 - 2015-07-12
Contributed By:
University of Minnesota, Immigration History Research Center
We consider stochastic descriptions of reaction networks inwhich there are both fast and slow reactions, and the time scales arewidely separated. We obtain a reduced equation on a slow time scale byapplying a state space decomposition method to the full governing equationand describe our reduction method on the reaction simplex. Based on theanal...
Creator:
Kan, Xingye (University of Minnesota, Twin Cities)
Created:
2014-05-13
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Neuronal activity leads to increases in local cerebral blood flow (CBF) to allow adequate supply of O2 and nutrients to active neurons. This process, termed neurovascular coupling (NVC), is essential for cognition and survival and is disrupted in neurodegenerative disorders. In addition, several functional neuroimaging techniques utilize NVC to ...
Creator:
Tsoukias, Nikolaos (Florida International University)
Created:
2018-02-15
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
We present a semi-classical model for studying the optical responses of nano-structures, where the wave propagation is determined classically through Maxwell's equations and the motion of the nano-structure is determined quantum mechanically through Schrodinger equation. Ehrenfest molecular dynamics and Density Functional Theories are applied to...
Creator:
Luo, Songting (Iowa State University)
Created:
2017-04-25
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Cortical spreading depression (SD) is a spreading disruption in brain ionic homeostasis during which neurons experience complete and prolonged depolarizations. We perform simulations with a model of SD treating brain tissue as a triphasic continuum of neurons, glia and the extracellular space. A thermodynamically consistent incorporation of the ...
Creator:
O'Connell, Rosemary (University of Minnesota, Twin Cities)
Created:
2018-02-13
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
To Embrace Failure? A Multi-disciplinary Re-thinking Our point of departure is the productive failure of single authorship and of representation in Bertolt Brecht's theater, which ultimately led to new forms of collectivity and most famously to the Epic Theater. Yet our panel will inquire more broadly into the virtue of failure. What constitutes...
To Embrace Failure? A Multi-disciplinary Re-thinking Our point of departure is the productive failure of single authorship and of representation in Bertolt Brecht's theater, which ultimately led to new forms of collectivity and most famously to the Epic Theater. Yet our panel will inquire more broadly into the virtue of failure. What constitutes...
The structure of the zero set of a multivariate polynomial is a topic of wide interest, in view of its ubiquity in problems of analysis, algebra, partial differential equations, probability and geometry. The study of such sets, known in algebraic geometry literature as resolution of singularities, originated in the pioneering work of Jung, Abhya...
Creator:
Pramanik, Malabika (University of British Columbia)
Created:
2012-06-02
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
In this talk, I will present our recent work on the development of computationally efficient propagators and their application to seismic imaging. By incorporating the ideas of efficient absorbing boundary conditions and scattering formalism into a carefully devised double-sweeping scheme, we are able to accurately capture the amplitudes of prim...
Creator:
Guddati, Murthy N. (North Carolina State University)
Created:
2015-05-11
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
A Moving Cell Project Laboratory: They Blinded Me with Science (& Art)!. Biomedical Engineer David Odde and Choreographer Carl Flink explore the creative collision of their science and art as they examine the interior of the living cell. Over the past two years, the Moving Cell Collaborative has developed and deepened a fruitful creative and sci...
A Moving Cell Project Laboratory: They Blinded Me with Science (& Art)!. Biomedical Engineer David Odde and Choreographer Carl Flink explore the creative collision of their science and art as they examine the interior of the living cell. Over the past two years, the Moving Cell Collaborative has developed and deepened a fruitful creative and sci...
A Mount Sinai Hospital professional, Minneapolis, Minnesota. After World War II, the idea for a Jewish hospital began circulating as Jewish community members expressed the desire for a hospital in the Twin Cities that would admit minorities on its staff. Mount Sinai Hospital was the first non-sectarian hospital in the state. Opened in 1951 in So...
Created:
1985
Contributed By:
University of Minnesota Libraries, Nathan and Theresa Berman Upper Midwest Jewish Archives.
10:50 - 11:00 a.m. Program Opens: Music "When I was just..." Program Closes: Music Out "... Minnesota School of the Air." Special Instructions: Theme song on the end is distorted slightly, T.B. What goes through a Black mother's mind when she sees her newborn son? What are her feelings and hopes for his future - or will he have a future? The ove...
Creator:
University of Minnesota. Radio Station KUOM
Contributor:
Clark, Mattie
Created:
1974-01-21
Contributed By:
University of Minnesota Libraries, University Archives.
