Browsing FAS Scholarly Articles by Title
Now showing items 7401-7420 of 18296
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Hybrid Biosynthesis of Roseobacticides from Algal and Bacterial Precursor Molecules
(American Chemical Society, 2014)Roseobacticides regulate the symbiotic relationship between a marine bacterium (Phaeobacter inhibens) and a marine microalga (Emiliania huxleyi). This relationship can be mutualistic, when the algal host provides food for ... -
A Hybrid Combining Hard and Soft Robots
(Mary Ann Liebert Inc, 2014)This manuscript describes a hybrid robotic system combining hard and soft sub-systems. This hybrid comprises a wheeled robot (an iRobot Create©; hard) and a four-legged quadruped (soft). It is capable (using a simple, ... -
Hybrid forms: translating Boethius in Anglo-Saxon England
(Cambridge University Press (CUP), 2016-12)Critics have long wondered about the setting and intent of the Old English translation of Boethius’s De consolatione philosophiae, first into prose and then into prosimetrum. This article situates the dual translation ... -
Hybrid Hydrogels with Extremely High Stiffness and Toughness
(American Chemical Society (ACS), 2014)The development of hydrogels for cartilage replacement and soft robotics has highlighted a challenge: load-bearing hydrogels need to be both stiff and tough. Several approaches have been reported to improve the toughness ... -
Hybrid Monitors for Concurrent Noninterference
(2015)Controlling confidential information in concurrent systems is difficult, due to covert channels resulting from interaction between threads. This problem is exacerbated if threads share resources at fine granularity. In ... -
Hybrid Quantum Devices and Quantum Engineering
(IOP Science, 2009)We discuss prospects of building hybrid quantum devices involving elements of atomic and molecular physics, quantum optics and solid-state elements with the attempt to combine advantages of the respective systems in ... -
Hybrid Quantum Processors: Molecular Ensembles as Quantum Memory for Solid State Circuits
(American Physical Society (APS), 2006)We investigate a hybrid quantum circuit where ensembles of cold polar molecules serve as long-lived quantum memories and optical interfaces for solid state quantum processors. The quantum memory realized by collective spin ... -
Hybrid Single-Nanowire Photonic Crystal and Microresonator Structures
(American Chemical Society, 2006)We report a hybrid approach for photonic systems that combines chemically synthesized single nanowire emitters with lithographically defined photonic crystal and racetrack microresonator structures. Finite-difference ... -
Hybrid stretchable circuits on silicone substrate
(American Institute of Physics, 2014)When rigid and stretchable components are integrated onto a single elastic carrier substrate, large strain heterogeneities appear in the vicinity of the deformable-non-deformable interfaces. In this paper, we report on a ... -
Hybrid Thermal‐Nonthermal Synchrotron Emission from Hot Accretion Flows
(American Astronomical Society, 2000)We investigate the effect of a hybrid electron population, consisting of both thermal and nonthermal particles, on the synchrotron spectrum, image size, and image shape of a hot accretion flow onto a supermassive black ... -
Hybrid Transitive Trust Mechanisms
(International Foundation for Autonomous Agents and Multiagent Systems, 2010)Establishing trust amongst agents is of central importance to the development of well-functioning multi-agent systems. For example, the anonymity of transactions on the Internet can lead to inefficiencies; e.g., a seller ... -
Hybrid zones and the speciation continuum in Heliconius butterflies
(Wiley-Blackwell, 2012)Tropical butterflies in the genus Heliconius have long been models in the study of the stages of speciation. Heliconius are unpalatable to predators, and many species are notable for multiple geographic populations with ... -
Hybridization in Plants: Old Ideas, New Techniques
(American Society of Plant Biologists (ASPB), 2016-11-28)Hybridization has played an important role in the evolution of many lineages. With the growing availability of genomic tools and advancements in genomic analyses, it is becoming increasingly clear that gene flow between ... -
Hydrated sulphuric acid in dense molecular clouds
(Oxford University Press (OUP), 2003)We consider sulphur depletion in dense molecular clouds, and suggest hydrated sulphuric acid, H2SO4 · nH2O, as a component of interstellar dust in icy mantles. We discuss the formation of hydrated sulphuric acid in collapsing ... -
Hydration of Single Crystals of Dipalmitoylphosphatidylcholine
(National Academy of Sciences, 1981)Optical birefringence and x-ray measurements are reported for single crystals \((0.5 mm \times 2 mm \times 5 \mu m)\) of dipalmitoylphosphatidylcholine as a function of temperature and relative humidity. Large single ... -
Hydraulic Control of Mammalian Embryo Size and Cell Fate
(Springer Science and Business Media LLC, 2019-06-12)Size control is fundamental in tissue development and homeostasis1,2. While the role of cell proliferation in these processes has been widely studied, the mechanisms of embryo size control and how it impacts cell fates ... -
The Hydraulic Landscape of Nimrud
(Institute of Archaeology, University of Tornio, 2015) -
Hydrodynamic correlations in the translocation of a biopolymer through a nanopore: Theory and multiscale simulations
(American Physical Society, 2008-09-17)We investigate the process of biopolymer translocation through a narrow pore using a multiscale approach which explicitly accounts for the hydrodynamic interactions of the molecule with the surrounding solvent. The simulations ... -
Hydrodynamic Drag on a Compact Star Orbiting a Supermassive Black Hole
(American Astronomical Society, 2000)The proposed Laser Interferometer Space Antenna is expected to detect gravitational waves from compact stars spiraling into supermassive black holes in distant galactic nuclei. Analysis of the inspiral events will require ... -
Hydrodynamic function of dorsal and anal fins in brook trout (Salvelinus fontinalis)
(The Company of Biologists, 2007)Recent kinematic and hydrodynamic studies on fish median fins have shown that dorsal fins actively produce jets with large lateral forces. Because of the location of dorsal fins above the fish’s rolling axis, these lateral ...