Browsing Faculty of Arts and Sciences by Title
Now showing items 9503-9522 of 24540
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Hall carrier density and magnetoresistance measurements in thin-film vanadium dioxide across the metal-insulator transition
(American Physical Society, 2009)Temperature-dependent magnetotransport measurements in magnetic fields of up to 12 T were performed on thin-film vanadium dioxide (VO(2)) across the metal-insulator transition (MIT). The Hall carrier density increases by ... -
Halo mass and assembly history exposed in the faint outskirts: the stellar and dark matter haloes of Illustris galaxies
(Oxford University Press, 2014)We use the Illustris simulations to gain insight into the build-up of the outer, low-surface brightness regions which surround galaxies. We characterize the stellar haloes by means of the logarithmic slope of the spherically ... -
Halofuginone: A Story of How Target Identification of an Ancient Chinese Medicine and Multi-Step Evolution Informs Malaria Drug Discovery
(2014-06-06)Malaria is a treatable communicable disease yet remains a common cause of death and disease especially among pregnant women and children. Most of malaria's worldwide burden disproportionately lies in Southeast Asia and ... -
Halogen photoelimination from dirhodium phosphazane complexes via chloride-bridged intermediates
(Royal Society of Chemistry (RSC), 2013)Halogen photoelimination is a critical step in HX-splitting photocatalysis. Herein, we report the photoreduction of a pair of valence-isomeric dirhodium phosphazane complexes, and suggest that a common intermediate is ... -
Halving warming with idealized solar geoengineering moderates key climate hazards
(Springer Science and Business Media LLC, 2019-03-11)Solar geoengineering (SG) has the potential to restore average surface temperatures by increasing planetary albedo but this could reduce precipitation. Thus, although SG might reduce globally aggregated risks, it may ... -
HandKAchip - Hands-free killing assay on a chip
(Nature Publishing Group, 2016)Small animals such as the roundworm C. elegans are excellent models for studying bacterial infection and host response, as well as for genetic and chemical screens. A key methodology is the killing assay, in which the ... -
Handling Interdependent Values in an Auction Mechanism for Bandwidth Allocation in Tactical Data Networks
(Association for Computing Machinery, 2008)We consider a tactical data network with limited bandwidth, in which each agent is tracking objects and may have value for receiving data from other agents. The agents are self-interested and would prefer to receive data ... -
Handling stress may confound murine gut microbiota studies
(PeerJ Inc., 2017)Background: Accumulating evidence indicates interactions between human milk composition, particularly sugars (human milk oligosaccharides or HMO), the gut microbiota of human infants, and behavioral effects. Some HMO ... -
Hantai, Villegle, and the Dialectics of Painting's Dispersal
(MIT Press, 2000) -
Hao Ran and the Cultural Revolution
(2016)This chapter offers a close reading of several works by Liang Jinguang, better known as Hao Ran, contextualizing his work within a tradition of Maoist “cultural revolution” that led up to the Great Proletarian Cultural ... -
Hap: Uncertainty and the English Novel
(2015-05-16)This dissertation explores how nineteenth-century novelists envisioned thinking, judging, and acting in conditions of imperfect knowledge. I place novels against historical developments in mathematics, philosophy, psychology, ... -
Happiness from the Bottom Up
(2013-02-15)This dissertation presents three papers organized around a central theme: understanding happiness from the bottom up, in the context of everyday life. The first paper asks whether, in the course of daily activities, people ... -
Haptic Effects of Surgical Teleoperator Flexibility
(MIT Press, 2009)Minimally invasive surgery systems typically involve thin and cable-driven surgical instruments. This introduces link and joint flexibility in the slave robot of a master-slave teleoperation system, reducing the effective ... -
Haptic Noise Cancellation: Restoring Force Perception in Robotically-Assisted Beating Heart Surgery
(Institute of Electrical and Electronics Engineers, 2010)Beating heart surgical methods have the potential to remove the need for the heart-lung machine and its attendant side effects, but must contend with the motion of the heart. Recent research in robotically-assisted ... -
Hard Times
(Oxford University Press (OUP), 2013)We show that the stock market downturns of 2000–2002 and 2007–2009 have very different proximate causes. The early 2000s saw a large increase in the discount rates applied to profits by rational investors, while the late ... -
Hard X‐Ray Emission from Low‐Mass X‐Ray Binaries
(American Astronomical Society, 2000)We report on Rossi X-Ray Timing Explorer observations of four type I X-ray bursters, namely, 1E 1724-3045, GS 1826-238, SLX 1735-269, and KS 1731-260. The first three were in a low state, with 1-200 keV X-ray luminosities ... -
Hard-soft-collinear factorization to all orders
(American Physical Society (APS), 2014)We provide a precise statement of hard-soft-collinear factorization of scattering amplitudes and prove it to all orders in perturbation theory. Factorization is formulated as the equality at leading power of scattering ... -
Hard-to-Manipulate Combinatorial Auctions
(Division of Applied Science, Harvard University, 2004)Mechanism design provides a framework to solve distributed optimization problems in systems of self-interested agents. The combinatorial auction is one such problem, in which there is a set of discrete items to allocate ... -
Hardness of Lattice Problems for Use in Cryptography
(2016-06-21)Lattice based cryptography has recently become extremely popular due to its perceived resistance to quantum attacks and the many amazing and useful cryptographic primitives that can be constructed via lattices. The security ...