Browsing FAS Scholarly Articles by Title
Now showing items 3400-3419 of 18276
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Decoupling catalytic activity from biological function of the ATPase that powers lipopolysaccharide transport
(Proceedings of the National Academy of Sciences, 2014)Gram-negative bacteria contain an unusual outer membrane that prevents the entry of most currently available antibiotics. This membrane contains a complex glycolipid, LPS, on the exterior. It is not understood how such a ... -
Decoupling of the Arctic Oscillation and North Atlantic Oscillation in a Warmer Climate
(Springer Science and Business Media LLC, 2021-01-11)The North Atlantic Oscillation and the Arctic Oscillation are modes of climate variability affecting temperature and precipitation in the mid-latitudes. Here we use reanalysis data and climate model simulations of historical ... -
Decrease in gamma-band activity tracks sequence learning
(Frontiers Media S.A., 2015)Learning novel sequences constitutes an example of declarative memory formation, involving conscious recall of temporal events. Performance in sequence learning tasks improves with repetition and involves forming temporal ... -
Decreased Cerebellar-Orbitofrontal Connectivity Correlates with Stuttering Severity: Whole-Brain Functional and Structural Connectivity Associations with Persistent Developmental Stuttering
(Frontiers Media S.A., 2016)Persistent developmental stuttering is characterized by speech production disfluency and affects 1% of adults. The degree of impairment varies widely across individuals and the neural mechanisms underlying the disorder and ... -
The Dedication Strategies of Conrad Gessner
(Springer International Publishing, 2017) -
Deduction of Continuum Potentials from Planar Channeling
(American Physical Society (APS), 1972)A new method for determining planar continuum potentials from planar channeling data has been developed. Preliminary experiments have been done for 1.8-MeV α particles in [111] gold planar directions from which the continuum ... -
Deep Annotation of Populus trichocarpa MicroRNAs from Diverse Tissue Sets
(Public Library of Science, 2012)Populus trichocarpa is an important woody model organism whose entire genome has been sequenced. This resource has facilitated the annotation of microRNAs (miRNAs), which are short non-coding RNAs with critical regulatory ... -
Deep Genetic Divergence between Disjunct Refugia in the Arctic-Alpine King’s Crown, Rhodiola integrifolia (Crassulaceae)
(Public Library of Science, 2013)Despite the strength of climatic variability at high latitudes and upper elevations, we still do not fully understand how plants in North America that are distributed between Arctic and alpine areas responded to the ... -
The Deep History of Life
(ASM Press, 2012)The conventional fossil record is built of hard parts—bones, shells, and decay-resistant organic tissues buried in the sediments that accumulate on floodplains, in lakes, and on the seafloor. In the 1950s, geologists first ... -
Deep Predictive Coding Networks for Video Prediction and Unsupervised Learning
(2016)While great strides have been made in using deep learning algorithms to solve supervised learning tasks, the problem of unsupervised learning - leveraging unlabeled examples to learn about the structure of a domain - remains ... -
Deep Sequencing Analysis of Phage Libraries using Illumina Platform
(Elsevier BV, 2012)This paper presents an analysis of phage-displayed libraries of peptides using Illumina. We describe steps for the preparation of short DNA fragments for deep sequencing and MatLab software for the analysis of the results. ... -
Deep Sequencing of Mixed Total DNA without Barcodes Allows Efficient Assembly of Highly Plastic Ascidian Mitochondrial Genomes
(Oxford University Press, 2013)Ascidians or sea squirts form a diverse group within chordates, which includes a few thousand members of marine sessile filter-feeding animals. Their mitochondrial genomes are characterized by particularly high evolutionary ... -
Deep sequencing reveals cell-type-specific patterns of single-cell transcriptome variation
(BioMed Central, 2015)Background: Differentiation of metazoan cells requires execution of different gene expression programs but recent single-cell transcriptome profiling has revealed considerable variation within cells of seeming identical ... -
Deep Sparse-coded Network (DSN)
(2015)We introduce Deep Sparse-coded Network (DSN), a deep architecture based on sparse coding and dictionary learning. Key advantage of our approach is two-fold. By interlacing max pooling with sparse coding layer, we achieve ... -
Deep superconducting magnetic traps for neutral atoms and molecules
(AIP Publishing, 2004)We describe the design, construction and performance of three realizations of a high-field superconducting magnetic trap for neutral atoms and molecules. Each of these traps utilizes a pair of coaxial coils in the ... -
Deep Xmm-newton Spectroscopic and Timing Observations of the Isolated Radio Millisecond Pulsar Psr J0030+0451
(American Astronomical Society, 2009)We present deep XMM-Newton European Photon Imaging Camera spectroscopic and timing X-ray observations of the nearby solitary radio millisecond pulsar, PSR J0030+0451. Its emission spectrum in the 0.1-10 keV range is found ... -
Deep-Water Incised Valley Deposits at the Ediacaran-Cambrian Boundary in Southern Namibia Contain Abundant Treptichnus Pedum
(Society for Sedimentary Geology, 2012)Valley-filling deposits of the Nama Group, southern Namibia, record two episodes of erosional downcutting and backfill, developed close together in time near the Ediacaran-Cambrian boundary. Geochronological constraints ... -
The DEEP2 Galaxy Redshift Survey: Clustering of Galaxies in Early Data
(IOP Publishing, 2004)We measure the two-point correlation function ξ(rp, π) in a sample of 2219 galaxies between z = 0.7 and 1.35 to a magnitude limit of RAB = 24.1 from the first season of the DEEP2 Galaxy Redshift Survey. From ξ(rp, π) we ... -
The DEEP2 Galaxy Redshift Survey: Design, Observations, Data Reduction, and Redshifts
(IOP Publishing, 2013)We describe the design and data analysis of the DEEP2 Galaxy Redshift Survey, the densest and largest high-precision redshift survey of galaxies at z ~ 1 completed to date. The survey was designed to conduct a comprehensive ... -
The DEEP2 Galaxy Redshift Survey: First Results on Galaxy Groups
(IOP Publishing, 2005)We use the first 25% of the DEEP2 Galaxy Redshift Survey spectroscopic data to identify groups and clusters of galaxies in redshift space. The data set contains 8370 galaxies with confirmed redshifts in the range 0.7 ≤ z ...