Browsing Faculty of Arts and Sciences by Title
Now showing items 3524-3543 of 24540
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Compressible Quantum Phases from Conformal Field Theories in 2+1 Dimensions
(American Physical Society, 2012)Conformal field theories (CFTs) with a globally conserved U(1) charge Q can be deformed into compressible phases by modifying their Hamiltonian, H, by a chemical potential H→H-μQ. We study 2+1 dimensional CFTs upon which ... -
Compression in visual working memory: Using statistical regularities to form more efficient memory representations.
(American Psychological Association (APA), 2009)The information that individuals can hold in working memory is quite limited, but researchers have typically studied this capacity using simple objects or letter strings with no associations between them. However, in the ... -
Compressive Sensing Based Channel Feedback Protocols for Spatially-Correlated Massive Antenna Arrays
(Institute of Electrical and Electronics Engineers, 2012)Incorporating wireless transceivers with numerous antennas (such as Massive-MIMO) is a prospective way to increase the link capacity or enhance the energy efficiency of future communication systems. However, the benefits ... -
Compressive Sensing Medium Access Control for Wireless LANs
(Institute of Electrical and Electronics Engineers, 2012)We propose a medium access control (MAC) protocol for wireless local area networks (LANs) that leverages the theory of compressive sensing. The proposed compressive sensing MAC (CS-MAC) exploits the sparse property that, ... -
Compressive Sensing with Directly Recoverable Optimal Basis and Applications in Spectrum Sensing
(2011)We describe a method of integrating Karhunen-Loeve Transform (KLT) into compressive sensing, which can as a result leverage KLT’s optimality in revealing the sparsity of a signal. We present two complementary results: (1) ... -
Compressive Sensing with Optimal Sparsifying Basis and Applications in Spectrum Sensing
(Institute of Electrical and Electronics Engineers, 2012)We describe a method of integrating Karhunen-Loève Transform (KLT) into compressive sensing, which can as a result improve the compression ratio without affecting the accuracy of decoding. We present two complementary ... -
Compton scattering from Li6 at 86 MeV
(American Physical Society (APS), 2014)Cross sections for 6Li(γ,γ) 6Li have been measured at the High Intensity Gamma-Ray Source (HI~γS) and the sensitivity of these cross sections to the nucleon isoscalar polarizabilities was studied. Data were collected using ... -
Compton scattering from the deuteron below pion-production threshold
(American Physical Society (APS), 2015)Differential cross sections for elastic scattering of photons from the deuteron have recently been measured at the Tagged-Photon Facility at the MAX IV Laboratory in Lund, Sweden. These first new measurements in more than ... -
Compulsory Premarital Screening for the Human Immunodeficiency Virus: Technical and Public Health Considerations
(American Medical Association, 1987)The effectiveness of a mandatory premarital screening program was examined as a means of curtailing the spread of the human immunodeficiency virus (HIV) infection in the United States. The epidemiology of the HIV, the ... -
Computation and Visualization of Casimir Forces in Arbitrary Geometries: Nonmonotonic Lateral-Wall Forces and the Failure of Proximity-Force Approximations
(American Physical Society, 2007)We present a method of computing Casimir forces for arbitrary geometries, with any desired accuracy, that can directly exploit the efficiency of standard numerical-electromagnetism techniques. Using the simplest possible ... -
Computation of p-Adic Heights and Log Convergence
(Universität Bielefeld, Fakultät für Mathematik, 2006)This paper is about computational and theoretical questions regarding p-adic height pairings on elliptic curves over a global field K. The main stumbling block to computing them efficiently is in calculating, for each of ... -
Computation of Semantic Number from Morphological Information
(2005)The distinction between singular and plural enters into linguistic phenomena such as morphology, lexical semantics, and agreement and also must interface with perceptual and conceptual systems that assess numerosity in the ... -
Computation-Cautious Machine Learning Systems
(2021-05-13)Deriving knowledge from data is central to how we live, learn, and decide: Machine learning and data science pipelines are extensively applied to extract knowledge from an ever-increasing amount of data across all fields, ... -
Computational and Bayesian Methods for Geographic Data in the Social Sciences
(2023-05-12)Research in the social sciences often involves the analysis of geographic data. These data may be explicitly spatial, with each observation tied to a specific point on or region of the globe, or they may include variables ... -
Computational and Experimental Approaches For Evaluating the Genetic Basis of Mitochondrial Disorders
(2013-10-08)Mitochondria are responsible for many fundamental biological pathways and metabolic processes, including aerobic ATP production by the mitochondrial respiratory chain. In humans, mitochondrial dysfunction can lead to severe ... -
Computational and Experimental Studies in Selective Organocatalysis
(2023-07-25)Chemical synthesis has transformed the ability of scientists and engineers to interact with the molecular world. Yet despite almost two centuries of considerable effort, small-molecule synthesis remains a challenging task. ... -
Computational and Statistical Methods for Characterizing Single-Cell Heterogeneity
(2018-01-19)The emergence of single-cell technologies has highlighted the potential to discover novel cellular subpopulations and states within heterogeneous populations. Such technologies are achieving increasingly higher-throughput, ... -
Computational Approaches to Developmental Biology
(2021-01-20)The origin and evolution of new genes is an active topic of research, relying on the taxonomical diversity now present in sequence databases. Using those databases, we described how \textit{oskar}, a key determinant of ... -
Computational Bioacoustics of Deer Mice: Identifying and Comparing Vocal Syllables Across Species and Infant Development
(2022-06-03)Vocal behaviors are diverse across mammals, but the mechanisms underlying this diversity are poorly understood. Unlike traditional models of vocal behavior such as the laboratory mouse (Mus musculus), deer mice (genus ... -
Computational Caches
(ACM Press, 2013)Caching is a well-known technique for speeding up computation. We cache data from file systems and databases; we cache dynamically generated code blocks; we cache page translations in TLBs. We propose to cache the act of ...