Browsing Faculty of Arts and Sciences by Title
Now showing items 56-75 of 24540
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A 4-DOF Robot for Positioning Ultrasound Imaging Catheters
(American Society of Mechanical Engineers, 2015)In this paper we present the design, fabrication, and testing of a robot for automatically positioning ultrasound imaging catheters. Our system will point ultrasound (US) catheters to provide real-time imaging of anatomical ... -
4-Manifolds With Inequivalent Symplectic Forms and 3-Manifolds With Inequivalent Fibrations
(International Press, 1999)We exhibit a closed, simply connected 4-manifold \(X\) carrying two symplectic structures whose first Chern classes in \(H^2 (X, \mathbb{Z})\) lie in disjoint orbits of the diffeomorphism group of \(X\). Consequently, the ... -
4-Phenylbutyrate Attenuates the ER Stress Response and Cyclic AMP Accumulation in DYT1 Dystonia Cell Models
(Public Library of Science, 2014)Dystonia is a neurological disorder in which sustained muscle contractions induce twisting and repetitive movements or abnormal posturing. DYT1 early-onset primary dystonia is the most common form of hereditary dystonia ... -
The 4.5 µm full-orbit phase curve of the hot Jupiter HD 209458B
(IOP Publishing, 2014)The hot Jupiter HD 209458b is particularly amenable to detailed study as it is among the brightest transiting exoplanet systems currently known (V-mag = 7.65; K-mag = 6.308) and has a large planet-to-star contrast ratio. ... -
4d Spectra from BPS Quiver Dualities
(2013-09-26)We attack the question of BPS occupancy in a wide class of 4d N = 2 quantum field theories. We first review the Seiberg-Witten approach to finding the low energy Wilsonian effective action actions of such theories. In ... -
4He Liquid-Vapor Interface Below 1 K Studied Using X-Ray Reflectivity
(American Physical Society, 2000)The free surface of thin films of liquid helium adsorbed on a solid substrate has been studied using x-ray reflectivity. The film thickness and interfacial profile are extracted from the angular dependence of measured ... -
A 65 k.y. Time Series From Sediment-Hosted Glasses Reveals Rapid Transitions in Ocean Ridge Magmas
(Geological Society of America, 2017)Studies of ocean ridge magmatism have been hampered by the difficulty in constructing time-series data over more than a few thousand years. Sediment rapidly covers newly formed ocean crust, and older rocks, even when ... -
6d Conformal matter
(Springer Verlag, 2015)A single M5-brane probing G, an ADE-type singularity, leads to a system which has G x G global symmetry and can be viewed as "bifundamental" (C, C) matter. For the AN series, this leads to the usual notion of bifundamental ... -
8.4 GHz VLBI Observations of SN 2004et in NGC 6946
(EDP Sciences, 2007-05-25)We report on 8.4 GHz very-long-baseline-interferometry (VLBI) observations of the type II-P supernova SN2004et in the spiral galaxy NGC 6946, made on 20 February 2005 (151 days after explosion). The Very Large Array (VLA) ... -
9-Genes Reinforce the Phylogeny of Holometabola and Yield Alternate Views on the Phylogenetic Placement of Strepsiptera
(Public Library of Science, 2010)Background: The extraordinary morphology, reproductive and developmental biology, and behavioral ecology of twisted wing parasites (order Strepsiptera) have puzzled biologists for centuries. Even today, the phylogenetic ... -
90 Reasons to Consider Cellular Agriculture
(2019)90 Reasons is a list of prospective benefits cellular agriculture may offer upon global-scale introduction this century. -
A 15.65-solar-mass black hole in an eclipsing binary in the nearby spiral galaxy M 33
(Nature Research (part of Springer Nature), 2007)Stellar-mass black holes are found in X-ray-emitting binary systems, where their mass can be determined from the dynamics of their companion stars(1-3). Models of stellar evolution have difficulty producing black holes in ... -
A base-excision DNA-repair protein finds intrahelical lesion bases by fast sliding in contact with DNA
(National Academy of Sciences, 2006)A central mystery in the function of site-specific DNA-binding proteins is the detailed mechanism for rapid location and binding of target sites in DNA. Human oxoguanine DNA glycosylase 1 (hOgg1), for example, must search ... -
A Bayesian Nonparametric Approach to Multi-Task Learning for Contextual Bandits in Mobile Health
(2022-06-03)Reinforcement learning algorithms have found utility in a number of digital interventions, such as in mobile health (mHealth), wherein N users are followed and sequentially treated over T timesteps with the aim of optimizing ... -
A Broadband, Background-Free Quarter-Wave Plate Based on Plasmonic Metasurfaces
(American Chemical Society, 2012) -
A Bubbling Nearby Molecular Cloud: Complete Shells in Perseus
(American Astronomical Society, 2011)We present a study of the shells (and bubbles) in the Perseus molecular cloud using the COMPLETE survey large-scale (CO)-C-12(1-0) and (CO)-C-13(1-0) maps. The 12 shells reported here are spread throughout most of the ... -
A Calibrated Defocus Simulator for Research in Passive Ranging
(2022-05-23)Depth from defocus is a prominent area of computer vision research, yet unlike many other areas of the field, there is no dedicated dataset or general library for training and testing depth from defocus applications. As a ... -
A Capitalizing City: Dar Es Salaam and the Emergence of an African Entrepreneurial Elite (C. 1862-2015)
(2018-09-19)A Capitalizing City charts the ways some people of African descent in Dar es Salaam, the commercial and industrial capital of Tanzania, have attempted, historically, to either integrate into the modern capitalist system ... -
A Chandra Observation of the Globular Cluster Terzan 1: The Neutron Star X‐Ray Transient X1732−304 in Quiescence
(American Astronomical Society, 2002) -
A CHANDRA X-RAY OBSERVATORY STUDY OF PSR J1740-5340 AND CANDIDATE MILLISECOND PULSARS IN THE GLOBULAR CLUSTER NGC 6397
(American Astronomical Society, 2010)