Browsing Faculty of Arts and Sciences by Title
Now showing items 285-304 of 24540
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Ablation of a Single Cell From Eight-cell Embryos of the Amphipod Crustacean Parhyale hawaiensis
(MyJove Corporation, 2014)The amphipod Parhyale hawaiensis is a small crustacean found in intertidal marine habitats worldwide. Over the past decade, Parhyale has emerged as a promising model organism for laboratory studies of development, providing ... -
Abnormal auditory and language pathways in children with 16p11.2 deletion
(Elsevier, 2015)Copy number variations at chromosome 16p11.2 contribute to neurodevelopmental disorders, including autism spectrum disorder (ASD). This study seeks to improve our understanding of the biological basis of behavioral phenotypes ... -
Abnormal Dosage of Ultraconserved Elements Is Highly Disfavored in Healthy Cells but Not Cancer Cells
(Public Library of Science, 2014)Ultraconserved elements (UCEs) are strongly depleted from segmental duplications and copy number variations (CNVs) in the human genome, suggesting that deletion or duplication of a UCE can be deleterious to the mammalian ... -
Abnormal gene expression in cloned mice derived from embryonic stem cell and cumulus cell nuclei
(National Academy of Sciences, 2002)To assess the extent of abnormal gene expression in clones, we assessed global gene expression by microarray analysis on RNA from the placentas and livers of neonatal cloned mice derived by nuclear transfer (NT) from both ... -
Abnormal Hair Development and Apparent Follicular Transformation to Mammary Gland in the Absence of Hedgehog Signaling
(Elsevier, 2007)Summary: We show that removing the Shh signal tranducer Smoothened from skin epithelium secondarily results in excess Shh levels in the mesenchyme. Moreover, the phenotypes we observe reflect decreased epithelial Shh ... -
Abortion and postpartum care in the context of new governmental policies: Quantitative assessments of barriers and facilitators to equitable, quality care
(2023-06-01)While pregnant, individuals are susceptible to specific pregnancy-related health outcomes, and at the same time pregnancy can exacerbate pre-existing health conditions and cause other long-term, chronic conditions. Pregnancies ... -
About Hermann Weyl’s “Ramifications, Old and New, of the Eigenvalue Problem”
(American Mathematical Society (AMS), 2012-05-01) -
Aboveground vs. Belowground Carbon Stocks in African Tropical Lowland Rainforest: Drivers and Implications
(Public Library of Science, 2015)Background: African tropical rainforests are one of the most important hotspots to look for changes in the upcoming decades when it comes to C storage and release. The focus of studying C dynamics in these systems lies ... -
Abrupt Climate Shifts in Greenland Due to Displacements of the Sea Ice Edge
(American Geophysical Union, 2005)An atmospheric circulation model is used to show that a reduction in sea ice extent in the North Atlantic produces a climatic response consistent with abrupt changes in temperature and snow accumulation recorded in Greenland ... -
Abrupt Transition to Strong Superrotation Driven by Equatorial Wave Resonance in an Idealized GCM
(American Meteorological Society, 2012)Persistent superrotation is seen in the atmospheres of other terrestrial bodies (Venus, Titan) but not in that of present Earth, which is distinguished by equatorial easterlies. Nevertheless, superrotation has appeared in ... -
Absence of a Thick Atmosphere on the Terrestrial Exoplanet LHS 3844b
(Springer Science and Business Media LLC, 2019-08-19)The majority of terrestrial planets in the Galaxy orbit small stars with radii less than 60% that of the Sun1,2. Theoretical models predict that these planets are more vulnerable to at- mospheric escape and collapse than ... -
Absence of Anomalous Copper Vibrations in YBa2 Cu3O7−δ
(American Physical Society (APS), 1994)We find a normal temperature dependence for the Doppler broadening of the 230-eV resonance in the neutron cross section of Cu65 atoms in YBa2Cu3O7 between 10 and 300 K. No abrupt changes in the copper momentum spectrum ... -
Absence of discontinuities in ion-channeling parameters for YBa2 Cu3O7−δ thin films
(American Physical Society (APS), 1997)We have measured the ion-channeling minimum yield (χmin) and angular width (Ψ1/2) for Y, Ba, Cu, and O in 2000 Å (001)-oriented films of YBa2Cu3O7−δ on MgO. The measurements mapped out a 30 K region around the critical ... -
Absence of Disorder-Driven Metal-Insulator Transitions in Simple Holographic Models
(American Physical Society (APS), 2015)We study electrical transport in a strongly coupled strange metal in two spatial dimensions at finite temperature and charge density, holographically dual to the Einstein-Maxwell theory in an asymptotically four-dimensional ... -
Absence of Extraterrestrial 3He in Permian–Triassic Age Sedimentary Rocks
(Elsevier Science BV, 2005)Helium concentration and isotopic composition were measured in a suite of samples across the Permian–Triassic boundary at Opal Creek, Canada, to determine whether high extraterrestrial helium concentrations are associated ... -
Absence of Quantum Oscillations and Dependence on Site Energies in Electronic Excitation Transfer in the Fenna–Matthews–Olson Trimer
(American Chemical Society, 2011)Energy transfer in the photosynthetic Fenna–Matthews–Olson (FMO) complex of green sulfur bacteria is studied numerically taking all three subunits (monomers) of the FMO trimer and the recently found eighth bacteriochlorophyll ... -
Absence of red structural color in photonic glasses, bird feathers, and certain beetles
(American Physical Society (APS), 2014)Colloidal glasses, bird feathers, and beetle scales can all show structural colors arising from short-ranged spatial correlations between scattering centers. Unlike the structural colors arising from Bragg diffraction in ... -
Absolute Hodge Cycles in Prismatic Cohomology
(2021-09-09)In this thesis we construct the notion of absolute Hodge cycles in prismatic cohomology for abelian schemes. We show that they are compatible with their de Rham and p-adic components under comparison isomorphisms. -
Absolute Measurement of the Critical Behavior of the Smectic Elastic Constant of Bilayer and Monolayer Smectic-A Liquid Crystals on Approaching the Transition to the Nematic Phase
(American Physical Society, 1984)A new technique which provides an absolute measurement of the smectic elastic constant B is presented. This technique measures second sound on samples whose top surface is an air—liquid-crystal interface. The free surface ... -
Absolute Measurement of the Critical Properties of Second Sound at the Smectic-A-to-Nematic Phase Transition in 8OCB
(American Physical Society, 1981)Light scattered from the driven free surface of the smectic-A phase of octyloxy cyanobiphenyl (8OCB) provides a low-frequency measurement of second sound. This yields an absolute measurement of the smectic elastic constant, ...