Browsing FAS Scholarly Articles by Title
Now showing items 3870-3889 of 18292
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Direct Writing and Actuation of Three-Dimensionally Patterned Hydrogel Pads on Micropillar Supports
(Wiley-Blackwell, 2011)Freely swelling, three-dimensionally patterned responsive hydrogels fabricated by multiphoton lithography on the tips of flexible pillars provide unique capabilities for the design of adaptive systems. The resulting materials ... -
Direct-Liquid-Evaporation Chemical Vapor Deposition of Nanocrystalline Cobalt Metal for Nanoscale Copper Interconnect Encapsulation
(American Chemical Society (ACS), 2017)In advanced microelectronics, precise design of liner and capping layers become critical, especially when it comes to the fabrication of Cu interconnects with dimensions lower than its mean free path. Herein, we demonstrate ... -
Direct-liquid-evaporation chemical vapor deposition of smooth, highly conformal cobalt and cobalt nitride thin films
(Royal Society of Chemistry (RSC), 2015) -
Direct-Liquid-Injection Chemical Vapor Deposition of Nickel Nitride Films and Their Reduction to Nickel Films
(American Chemical Society, 2010)Smooth and continuous films of nickel nitride (NiNx) with excellent step coverage were deposited from a novel nickel amidinate precursor, Ni(MeC(NtBu)2)2, and either ammonia (NH3) or a mixture of NH3 and hydrogen (H2) gases ... -
Direct-to-Consumer Drug Advertisements Can Paradoxically Increase Intentions to Adopt Lifestyle Changes
(Frontiers Media S.A., 2016)Background: Direct-to-consumer (DTC) prescription drug advertisements are thought to induce “boomerang effects,” meaning they reduce the perceived effectiveness of a potential alternative option: non-pharmaceutical treatment ... -
Directed Altruism and Enforced Reciprocity in Social Networks
(MIT Press, 2009)We conduct online field experiments in large real-world social networks in order to decompose prosocial giving into three components: (1) baseline altruism toward randomly selected strangers, (2) directed altruism that ... -
Directed Evolution of a Small-Molecule-Triggered Intein with Improved Splicing Properties in Mammalian Cells
(Elsevier BV, 2011)Laboratory-created small-molecule-dependent inteins enable protein structure and function to be controlled post-translationally in living cells. Previously we evolved two inteins (2-4 and 3-2) that splice efficiently in ... -
Directed natural product biosynthesis gene cluster capture and expression in the model bacterium Bacillus subtilis
(Nature Publishing Group, 2015)Bacilli are ubiquitous low G+C environmental Gram-positive bacteria that produce a wide assortment of specialized small molecules. Although their natural product biosynthetic potential is high, robust molecular tools to ... -
Directed nucleation and growth by balancing local supersaturation and substrate/nucleus lattice mismatch
(Proceedings of the National Academy of Sciences, 2018)Controlling nucleation and growth is crucial in biological and artificial mineralization and self-assembly processes. The nucleation barrier is determined by the interfaces and local supersaturation. Although chemically ... -
Direction selectivity in the larval zebrafish tectum is mediated by asymmetric inhibition
(Frontiers Media S.A., 2012)The extraction of the direction of motion is an important computation performed by many sensory systems and in particular, the mechanism by which direction-selective retinal ganglion cells (DS-RGCs) in the retina acquire ... -
Directional Detection of Dark Matter With Diamond
(IOP Publishing, 2021-03-10)Searches for WIMP dark matter will in the near future be sensitive to solar neutrinos. Directional detection offers a method to reject solar neutrinos and improve WIMP searches, but reaching that sensitivity with existing ... -
Directional Differences in the Biaxial Material Properties of Fascia Lata and the Implications for Fascia Function
(Springer Science + Business Media, 2014)Fascia is a highly organized collagenous tissue that is ubiquitous in the body, but whose function is not well understood. Because fascia has a sheet-like structure attaching to muscles and bones at multiple sites, it is ... -
Directional Emission and Universal Far-Field Behavior from Semiconductor Lasers with Limacon-Shaped Microcavity
(American Institute of Physics, 2009)We report experimental demonstration of directional light emission from limaçon-shaped microcavity semiconductor lasers. Quantum cascade lasers (QCLs) emitting at \(\lambda \approx 10 \mu m\) are used as a model system. ... -
Directional Wetting in Anisotropic Inverse Opals
(American Chemical Society (ACS), 2014)Porous materials display interesting transport phenomena due to the restricted motion of fluids within the nano- to micro-scale voids. Here, we investigate how liquid wetting in highly ordered inverse opals is affected by ... -
Directionality in the History of Life: Diffusion from the Left Wall or Repeated Scaling of the Right?
(Elsevier, 2000)Issues of directionality in the history of life can be framed in terms of six major evolutionary steps, or megatrajectories (cf. Maynard Smith and Szathmary 1995): (1) evolution from the origin of life to the last common ... -
A Directory Service for Perspective Access Networks
(2006)Network fragmentation occurs when the accessibility of a network-based resource to an observer is a function of how the observer is connected to the network. In the context of the Internet, network fragmentation is well-known ... -
Dirty Work, Clean Hands: The Moral Psychology of Indirect Agency
(Elsevier, 2009)When powerful people cause harm, they often do so indirectly through other people. Are harmful actions carried out through others evaluated less negatively than harmful actions carried out directly? Four experiments examine ... -
Disagreement about Inflation Expectations
(Harvard University, Institute of Economic Research and Stanford University, Graduate School of Business, 2003)Analyzing 50 years of inflation expectations data from several sources, we document substantial disagreement among both consumers and professional economists about expected future inflation. Moreover, this disagreement ... -
Disagreement and the Stock Market
(American Economic Association, 2007)A large catalog of variables with no apparent connection to risk has been shown to forecast stock returns, both in the time series and the cross-section. For instance, we see medium-term momentum and post-earnings drift ... -
Disalignment transitions in cold collisions of 3 P atoms with structureless targets in a magnetic field
(American Physical Society, 2003)A method for quantum-mechanical calculations of cross sections for the Zeeman transitions in collisions of P-3 atoms with structureless targets in a magnetic field is presented and applied to the study of magnetic and ...