Browsing FAS Scholarly Articles by Title
Now showing items 4171-4190 of 18258
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Doodle Around the World: Online Scheduling Behavior Reflects Cultural Differences in Time Perception and Group Decision-Making
(ACM Press, 2013)Event scheduling is a group decision-making process in which social dynamics influence people's choices and the overall outcome. As a result, scheduling is not simply a matter of finding a mutually agreeable time, but a ... -
Dopa-Responsive Dystonia: Functional Analysis of Single Nucleotide Substitutions within the 5’ Untranslated GCH1 Region
(Public Library of Science, 2013)Background: Mutations in the GCH1 gene are associated with childhood onset, dopa-responsive dystonia (DRD). Correct diagnosis of DRD is crucial, given the potential for complete recovery once treated with L-dopa. The ... -
Dopamine D1 signaling organizes network dynamics underlying working memory
(American Association for the Advancement of Science, 2016)Local prefrontal dopamine signaling supports working memory by tuning pyramidal neurons to task-relevant stimuli. Enabled by simultaneous positron emission tomography–magnetic resonance imaging (PET-MRI), we determined ... -
Dopamine Genetic Risk Score Predicts Depressive Symptoms in Healthy Adults and Adults with Depression
(Public Library of Science, 2014)Background: Depression is a common source of human disability for which etiologic insights remain limited. Although abnormalities of monoamine neurotransmission, including dopamine, are theorized to contribute to the ... -
Dopamine neurons projecting to the posterior striatum form an anatomically distinct subclass
(eLife Sciences Publications, Ltd, 2015)Combining rabies-virus tracing, optical clearing (CLARITY), and whole-brain light-sheet imaging, we mapped the monosynaptic inputs to midbrain dopamine neurons projecting to different targets (different parts of the striatum, ... -
Dopamine neurons projecting to the posterior striatum form an anatomically distinct subclass
(eLife Sciences Publications, Ltd, 2015)Combining rabies-virus tracing, optical clearing (CLARITY), and whole-brain light-sheet imaging, we mapped the monosynaptic inputs to midbrain dopamine neurons projecting to different targets (different parts of the striatum, ... -
Dopamine neurons share common response function for reward prediction error
(Springer Nature, 2016)Dopamine neurons are thought to signal reward prediction error, or the difference between actual and predicted reward. How dopamine neurons jointly encode this information, however, remains unclear. One possibility is that ... -
Dopamine Signaling Is Essential for Precise Rates of Locomotion by C. elegans
(Public Library of Science, 2012)Dopamine is an important neuromodulator in both vertebrates and invertebrates. We have found that reduced dopamine signaling can cause a distinct abnormality in the behavior of the nematode C. elegans, which has only eight ... -
Dopant activation in Sn-doped Ga2O3 investigated by X-ray absorption spectroscopy
(AIP Publishing, 2015)Doping activity in both beta-phase (β-) and amorphous (a-) Sn-doped gallium oxide (Ga2O3:Sn) is investigated by X-ray absorption spectroscopy(XAS). A single crystal of β-Ga2O3:Sn grown using edge-defined film-fed growth ... -
Dopant clustering, electronic inhomogeneity, and vortex pinning in iron-based superconductors
(American Physical Society (APS), 2013)We use scanning tunneling microscopy to map the surface structure, nanoscale electronic inhomogeneity, and vitreous vortex phase in the hole-doped superconductor Sr0.75K0.25Fe2As2 with Tc=32 K. We find that the low-T cleaved ... -
Dopant Diffusion under Pressure and Stress
(Institute of Electrical & Electronics Engineers (IEEE), 2003)The effects of stress on equilibrium point defect populations and on dopant diffusion in strained semiconductors are reviewed. The thermodynamic relationships presented permit the direct comparison of hydrostatic and ... -
Doped Carbon Nanotube Networks for Electrochemical Filtration of Aqueous Phenol: Electrolyte Precipitation and Phenol Polymerization
(American Chemical Society (ACS), 2012)Electrochemical filtration with anodic carbon nanotube (CNT) networks is reported to be effective for chemical and microbiological water treatment. Here, we investigate how CNT doping affects the electrochemical filtration ... -
Doping by Metal-Mediated Epitaxy: Growth of As Delta-Doped Si through a Pb Monolayer
(American Institute of Physics, 2001)In molecular-beam epitaxy a monolayer of Pb on the Si(111) surface induces single-crystal growth at temperatures well below those required for similar growth on a bare surface. We demonstrate that the suppression of dopant ... -
Doppler Broadening of In-Flight Positron Annihilation Radiation due to Electron Momentum
(American Physical Society (APS), 2001)We report the first observation of electron momentum contributions to the Doppler broadening of radiation produced by in-flight two-photon annihilation in solids. In these experiments an approximately 2.5 MeV positron beam ... -
Dorsal and anal fin function in bluegill sunfish Lepomis macrochirus: three-dimensional kinematics during propulsion and maneuvering
(The Company of Biologists, 2005)Dorsal and anal fins are median fins located above and below the centre of mass of fishes, each having a moment arm relative to the longitudinal axis. Understanding the kinematics of dorsal and anal fins may elucidate how ... -
The dorsomedial striatum encodes net expected return, critical for energizing performance vigor
(2013)Decision making requires an actor to not only steer behavior towards specific goals, but also determine the optimal vigor of performance. Current research and models have largely focused on the former problem of how actions ... -
Dose-Dependent Mutation Rates Determine Optimum Erlotinib Dosing Strategies for EGFR Mutant Non-Small Cell Lung Cancer Patients
(Public Library of Science, 2015)Background: The advent of targeted therapy for cancer treatment has brought about a paradigm shift in the clinical management of human malignancies. Agents such as erlotinib used for EGFR-mutant non-small cell lung cancer ... -
The double cloak of invisibility: phenotypic plasticity and larval decoration in a geometrid moth,Synchlora frondaria, across three diet treatments
(Wiley-Blackwell, 2009)1. Crypsis is one of the main defences that insects use to avoid predators, and both the juveniles and adults of many geometrid moths are remarkable in their ability to blend into different host backgrounds. The larvae of ... -
Double DCO+ rings reveal CO ice desorption in the outer disk around IM Lup
(IOP Publishing, 2015)In a protoplanetary disk, a combination of thermal and non-thermal desorption processes regulate where volatiles are liberated from icy grain mantles into the gas phase. Non-thermal desorption should result in volatile-enriched ... -
Double Digest RADseq: An Inexpensive Method for De Novo SNP Discovery and Genotyping in Model and Non-Model Species
(Public Library of Science (PLoS), 2012)The ability to efficiently and accurately determine genotypes is a keystone technology in modern genetics, crucial to studies ranging from clinical diagnostics, to genotype-phenotype association, to reconstruction of ...