Browsing MIT Open Access Articles by Title
Now showing items 25114-25133 of 55747
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Is the electrostatic force between a point charge and a neutral metallic object always attractive?
(American Association of Physics Teachers (AAPT), 2011-08)We give an example of a geometry in which the electrostatic force between a point charge and a neutral metallic object is repulsive. The example consists of a point charge centered above a thin metallic hemisphere, positioned ... -
IS THE MAGNETIC FIELD IN THE HELIOSHEATH LAMINAR OR A TURBULENT SEA OF BUBBLES?
(Institute of Physics/American Astronomical Society, 2011-06)All current global models of the heliosphere are based on the assumption that the magnetic field in the heliosheath, in the region close to the heliopause (HP), is laminar. We argue that in that region the heliospheric ... -
Is there a best hyperspectral detection algorithm?
(The International Society for Optical Engineering, 2009-04)A large number of hyperspectral detection algorithms have been developed and used over the last two decades. Some algorithms are based on highly sophisticated mathematical models and methods; others are derived using ... -
Is There a Disk of Satellites around the Milky Way?
(IOP Publishing, 2017-07)The "disk of satellites" (DoS) around the Milky Way is a highly debated topic with conflicting interpretations of observations and their theoretical models. We perform a comprehensive analysis of all of the dwarfs detected ... -
Is there a role for tissue plasminogen activator (tPA) as a novel treatment for refractory COVID-19 associated acute respiratory distress syndrome (ARDS)?
(Ovid Technologies (Wolters Kluwer Health), 2020-04)The global pandemic of COVID-19 has begun to oversaturate the world's medical capacity to accommodate a large surge of patients with acute respiratory distress syndrome (ARDS). Acute respiratory distress syndrome has no ... -
Is There an Energy Efficiency Gap?
(American Economic Association, 2012-01)Many analysts of the energy industry have long believed that energy efficiency offers an enormous "win-win" opportunity: through aggressive energy conservation policies, we can both save money and reduce negative externalities ... -
Is there enough star formation in simulated protoclusters?
(Oxford University Press (OUP), 2020)As progenitors of the most massive objects, protoclusters are key to tracing the evolution and star formation history of the Universe, and are responsible for ≳ 20 per cent of the cosmic star formation at z, > 2. Using a ... -
Is This Time Different? Capture and Anti-Capture of US Politics
(Walter de Gruyter, 2012-03)Societies are molded by their institutions that determine both their levels of prosperity and how that prosperity is distributed within society. For most of its history the U.S. has had economic institutions which have ... -
Isaiah Andrews, 2021 John Bates Clark Medalist
(American Economic Association, 2022)<jats:p> Isaiah Andrews is an exceptionally warm and caring person, a remarkable teacher, a collaborator and mentor, an exemplary contributor to his department and profession, and a brilliant econometrician. In this article, ... -
iSAM2: Incremental smoothing and mapping using the Bayes tree
(Sage Publications, 2011-12)We present a novel data structure, the Bayes tree, that provides an algorithmic foundation enabling a better understanding of existing graphical model inference algorithms and their connection to sparse matrix factorization ... -
iSAM2: Incremental Smoothing and Mapping with Fluid Relinearization and Incremental Variable Reordering
(IEEE Robotics & Automation Society, 2011-05)We present iSAM2, a fully incremental, graph-based version of incremental smoothing and mapping (iSAM). iSAM2 is based on a novel graphical model-based interpretation of incremental sparse matrix factorization methods, ... -
ISCB Ebola Award for Important Future Research on the Computational Biology of Ebola Virus
(Public Library of Science, 2015-01)Speed is of the essence in combating Ebola; thus, computational approaches should form a significant component of Ebola research. As for the development of any modern drug, computational biology is uniquely positioned to ... -
Isentropic scaling analysis of ozone in the upper troposphere and lower stratosphere
(American Geophysical Union (AGU), 2001-05)We examine ozone concentrations recorded by 7630 commercial flights from August 1994 to December 1997 for spatial scaling properties. The large amount of data allows an approximately isentropic analysis of ozone variability ... -
Ising Machine Based on Electrically Coupled Spin Hall Nano-Oscillators
(American Physical Society (APS), 2022) -
Ising Nematic Quantum Critical Point in a Metal: A Monte Carlo Study
(American Physical Society, 2016-08)The Ising nematic quantum critical point associated with the zero-temperature transition from a symmetric to a nematic metal is an exemplar of metallic quantum criticality. We carry out a minus-sign-free quantum Monte Carlo ... -
An Ising Spin-Based Model to Explore Efficient Flexibility in Distributed Power Systems
(Hindawi Publishing Corporation, 2018-05)This paper analyses customers’ demand flexibility in a local power trading scenario through an Ising spin-based model. We look at quantitative information on the two-way relationships between power exchanges and spin ... -
‘Islamic architecture’ and the profession
(Intellect, 2014-03)The term ‘Islamic architecture’ often evokes domed and sumptuously decorated monuments, preferably with minarets and lots of arches. Reductive and exotic, these images are nonetheless quite popular both in the West and in ... -
Island Cells Control Temporal Association Memory
(American Association for the Advancement of Science (AAAS), 2014-01)Episodic memory requires associations of temporally discontiguous events. In the entorhinal-hippocampal network, temporal associations are driven by a direct pathway from layer III of the medial entorhinal cortex (MECIII) ...
