University of Notre Dame

About: University of Notre Dame is a education organization based out in Notre Dame, Indiana, United States. It is known for research contribution in the topics: Population & Context (language use). The organization has 22238 authors who have published 55201 publications receiving 2032925 citations. The organization is also known as: University of Notre Dame du Lac & University of Notre Dame, South Bend.

Electron Storage in Single Wall Carbon Nanotubes. Fermi Level Equilibration in Semiconductor–SWCNT Suspensions

Abstract: The use of single wall carbon nanotubes (SWCNTs) as conduits for transporting electrons in a photoelectrochemical solar cell and electronic devices requires better understanding of their electron-accepting properties. When in contact with photoirradiated TiO2 nanoparticles, SWCNTs accept and store electrons. The Fermi level equilibration with photoirradiated TiO2 particles indicates storage of up to 1 electron per 32 carbon atoms in the SWCNT. The stored electrons are readily discharged on demand upon addition of electron acceptors such as thiazine and oxazine dyes (reduction potential less negative than that of the SWCNT conduction band) to the TiO2–SWCNT suspension. The stepwise electron transfer from photoirradiated TiO2 nanoparticles → SWCNT → redox couple has enabled us to probe the electron equilibration process and determine the apparent Fermi level of the TiO2–SWCNT system. A positive shift in apparent Fermi level (20–30 mV) indicates the ability of SWCNTs to undergo charge equilibration with phot...

Global Capital and National Governments

Abstract: 1. National governments and global capital: a review and a recasting 2. Financial market influence on government policy: theory and hypotheses 3. Financial market influence in developed nations: a quantitative assessment 4. Financial market-government relations in emerging economies 5. Politics meets markets: domestic responses to financial market pressures 6. Alternative domestic responses: changes to financial market-government relations 7. History repeating itself? Financial markets and national government policies before the first World War 8. Financial market-government relations in the twenty-first century.

Perspectives on NMR in drug discovery: a technique comes of age

Abstract: In the past decade, the potential of harnessing the ability of nuclear magnetic resonance (NMR) spectroscopy to monitor intermolecular interactions as a tool for drug discovery has been increasingly appreciated in academia and industry. In this Perspective, we highlight some of the major applications of NMR in drug discovery, focusing on hit and lead generation, and provide a critical analysis of its current and potential utility.

The Emperor Seamounts: Southward Motion of the Hawaiian Hotspot Plume in Earth's Mantle

Abstract: The Hawaiian-Emperor hotspot track has a prominent bend, which has served as the basis for the theory that the Hawaiian hotspot, fixed in the deep mantle, traced a change in plate motion. However, paleomagnetic and radiometric age data from samples recovered by ocean drilling define an age-progressive paleolatitude history, indicating that the Emperor Seamount trend was principally formed by the rapid motion (over 40 millimeters per year) of the Hawaiian hotspot plume during Late Cretaceous to early-Tertiary times (81 to 47 million years ago). Evidence for motion of the Hawaiian plume affects models of mantle convection and plate tectonics, changing our understanding of terrestrial dynamics.

Stick Insect Genomes Reveal Natural Selection’s Role in Parallel Speciation

Abstract: Natural selection can drive the repeated evolution of reproductive isolation, but the genomic basis of parallel speciation remains poorly understood. We analyzed whole-genome divergence between replicate pairs of stick insect populations that are adapted to different host plants and undergoing parallel speciation. We found thousands of modest-sized genomic regions of accentuated divergence between populations, most of which are unique to individual population pairs. We also detected parallel genomic divergence across population pairs involving an excess of coding genes with specific molecular functions. Regions of parallel genomic divergence in nature exhibited exceptional allele frequency changes between hosts in a field transplant experiment. The results advance understanding of biological diversification by providing convergent observational and experimental evidence for selection’s role in driving repeatable genomic divergence.