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Virtual Memory Primitives for User Programs
, 1991
"... Memory Management Units (MMUs) are traditionally used by operating systems to implement diskpaged virtual memory. Some operating systems allow user programs to specify the protection level (inaccessible, readonly. readwrite) of pages, and allow user programs t.o handle protection violations. bur. ..."
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Cited by 173 (2 self)
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Memory Management Units (MMUs) are traditionally used by operating systems to implement diskpaged virtual memory. Some operating systems allow user programs to specify the protection level (inaccessible, readonly. readwrite) of pages, and allow user programs t.o handle protection violations. bur. these mechanisms are not. always robust, efficient, or wellmat. ched to the needs of applications.
Through the Looking Glass: Teaching CS0 with Alice
 SIGCSE Bulletin
, 2007
"... This work analyzes the advantages and disadvantages of using the novice programming environment Alice in the CS0 classroom. We consider both general aspects as well as specifics drawn from the authors ’ experiences using Alice in the classroom over the course of the last academic year. ..."
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Cited by 8 (0 self)
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This work analyzes the advantages and disadvantages of using the novice programming environment Alice in the CS0 classroom. We consider both general aspects as well as specifics drawn from the authors ’ experiences using Alice in the classroom over the course of the last academic year.
BACKGROUND PAPER #2: CASE STUDIES OF MEDICAL TECHNOLOGIES CASE STUDY #9: THE ARTIFICIAL HEART: COST, RISKS, AND BENEFITS
, 1982
"... OTA Background Papers are documents containing information that supplements formal OTA assessments or is an outcome of internal exploratory planning and evaluation. The material is usually not of immediate policy interest such as is contained in an OTA Report or Technical Memorandum, nor does it pre ..."
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OTA Background Papers are documents containing information that supplements formal OTA assessments or is an outcome of internal exploratory planning and evaluation. The material is usually not of immediate policy interest such as is contained in an OTA Report or Technical Memorandum, nor does it present options for Congress to consider.I \lt. r,,,,.~ ’.> ‘w,
TwoBody Bound States The BetheSalpeter Equation
, 1997
"... The BetheSalpeter formalism is used to study twobody bound states within a scalar theory: two scalar fields interacting via the exchange of a third massless scalar field. The SchwingerDyson equation is derived using functional and diagrammatic techniques, and the BetheSalpeter equation is obtain ..."
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The BetheSalpeter formalism is used to study twobody bound states within a scalar theory: two scalar fields interacting via the exchange of a third massless scalar field. The SchwingerDyson equation is derived using functional and diagrammatic techniques, and the BetheSalpeter equation is obtained in an analagous way, showing it to be a twoparticle generalization of the SchwingerDyson equation. We also present a numerical method for solving the BetheSalpeter equation without threedimensional reduction. The ground and first excited state masses and wavefunctions are computed within the ladder approximation and spacelike form factors are calculated. The authors: Mike, Melissa, and Mike. pichowsk@theory.phy.anl.gov; Physics Division, Argonne National Laboratory, Argonne, IL 604394843 y mlk@curie.unh.edu; Physics Department, University of New Hampshire, Durham, NH 03824 z strickla@phy.duke.edu; Duke University, Durham, NC 1 Introduction Many of the bound systems that oc...
Theorem ( qextension of (4.2) in [F2]):
"... As always in qtheory, (X; Q)n will stand for the product (1 − X)(1 − QX)...(1 − Q n−1 X), and when the ”base ” Q is q, we will abbreviate (X; q)n to (X)n. For any Laurent polynomial f in x1,..., xn, CT (f) denotes the coefficient of x 0 1..x 0 n. Throughout this paper t: = q a, s = q b, u = q c. ..."
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As always in qtheory, (X; Q)n will stand for the product (1 − X)(1 − QX)...(1 − Q n−1 X), and when the ”base ” Q is q, we will abbreviate (X; q)n to (X)n. For any Laurent polynomial f in x1,..., xn, CT (f) denotes the coefficient of x 0 1..x 0 n. Throughout this paper t: = q a, s = q b, u = q c.
TaskSpecific Ventilated Robotic Enclosures for Product and Worker Protection Against Biological Hazards in HighThroughput Laboratories
"... The changing function of the modern lab environment results in additional challenges requiring flexible taskspecific solutions to minimize environmental impact, protect operator safety, and optimize ..."
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The changing function of the modern lab environment results in additional challenges requiring flexible taskspecific solutions to minimize environmental impact, protect operator safety, and optimize
Heat Capacity Evidence for the Suppression of Skyrmions at Large Zeeman Energy
, 2008
"... Measurements on a multilayer twodimensional electron system (2DES) near Landau level filling ν=1 reveal the disappearance of the nuclear spin contribution to the heat capacity as the ratio ˜g between the Zeeman and Coulomb energies exceeds a critical value ˜gc≈0.04. This disappearance suggests the ..."
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Measurements on a multilayer twodimensional electron system (2DES) near Landau level filling ν=1 reveal the disappearance of the nuclear spin contribution to the heat capacity as the ratio ˜g between the Zeeman and Coulomb energies exceeds a critical value ˜gc≈0.04. This disappearance suggests the vanishing of the Skyrmionmediated coupling between the lattice and the nuclear spins as the spin excitations of the 2DES make a transition from Skyrmions to single spinflips above ˜gc. Our experimental ˜gc is smaller than the calculated ˜gc=0.054 for an ideal 2DES; we discuss possible origins of this discrepancy. PACS numbers: 73.20.Dx, 73.40.Hm, 65.40.f Typeset using REVTEX 1 The ground state and spin excitations of a twodimensional electron system (2DES) near Landau level (LL) filling ν=1 have attracted much recent interest [1–9]. At this filling, the Coulomb exchange energy plays a dominant role, leading to a substantially larger quantum Hall effect (QHE) excitation gap than the expected singleparticle Zeeman splitting [1].
Submitted for Publication
, 1986
"... This note proposes an experimental test of a single accelerating gap of a pulsed linac. This accelerating gap consists of two parallel coaxial disks; an electromagnetic wave injected uniformly at the outer periphery of the disks (initial amplitude Vi) grows while traveling towards the center to GVo, ..."
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This note proposes an experimental test of a single accelerating gap of a pulsed linac. This accelerating gap consists of two parallel coaxial disks; an electromagnetic wave injected uniformly at the outer periphery of the disks (initial amplitude Vi) grows while traveling towards the center to GVo, G being the