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Results: 861
First-principles high pressure structure searching, longitudinal-transverse mode coupling and absence of simple cubic phase in sulfur
Abstract: We use first-principles density functional theory to conduct an extensive structure search using the AIRSS package for elemental sulfur in the range 50–550 GPa. We then obtain the low-temperature phase diagram of...
Direct age constraints on the magnetism of Jack Hills zircon.
Richard J M Taylor, Steven M Reddy, David W Saxey, William D A Rickard, Fengzai Tang, Cauê S Borlina, Roger R Fu, Benjamin P Weiss, Paul Bagot, Helen M Williams, Richard J Harrison
Feb 09, 2023
A potential record of Earth's magnetic field going back 4.2 billion years (Ga) ago is carried by magnetite inclusions in zircon grains from the Jack Hills. This magnetite may be secondary in nature, however, meaning that the...
Published by: Science advances
Analysis of a capped carbon nanotube by linear-scaling density-functional theory.
The apex region of a capped (5,5) carbon nanotube (CNT) has been modelled with the DFT package ONETEP, using boundary conditions provided by a classical calculation with a conducting surface in place of the CNT. Results from the...
The Ursinus College Investment Management Company Newsletter, Fall 2023
Inside this issue:
At a Glance
Letter from Kaela Frenchman '24 and Olivia DeFusco '24
Letter from Jack Thompson '24
Honoring Dr. Scott Deacle and Investment Team Updates
UCIMCO Investment Performance and Analysis
Endowment...
UCIMCO Endowment portfolio management stock selection Investment performance Ursinus College Business Finance and Financial Management Portfolio and Security Analysis
Published by: Ursinus College
The Ursinus Weekly, March 22, 1973
Charles Chambers, David Ochocki, Rich McIntyre, Joseph Van Wyk, Richard Whaley, Kitt Turner, Nancy Frye, John Kraus, Elsie Van Wagoner, John O. Rorer, III, Cris Crane, Helen Ludwig, Susan Petersen, Rodger Blind
Jan 01, 0001
U.S.G.A. takes action on several matters C.C.C. slots filled for coming autumn Fifteen Japanese students to arrive at Ursinus for Summer session Physical Education Department expands freshman course to fit facilities Dean...
Ursinus College Collegeville Pennsylvania newspaper student government Central Coordinating Committee Tohoku Gakuin University Japan Philip Williams Helfferich Hall vandalism James Moore tax reform John Roy Theft Tom Sturgeon Basketball International Students Elmer Gantry Songfest Athletic revolution cultural history Higher Education Liberal Studies Social History United States History
Published by: Ursinus College
Clinical and electrophysiological characterization of myokymia and neuromyotonia in Jack Russell Terriers.
AE Vanhaesebrouck, I Van Soens, L Poncelet, L Duchateau, S Bhatti, I Polis, S Diels, L Van Ham
Jul 03, 2019
BACKGROUND: Generalized myokymia and neuromyotonia (M/NM) in Jack Russell Terriers (JRTs) is related to peripheral nerve hyperexcitability syndrome in humans, a symptom complex resulting from diverse etiologies. OBJECTIVE...
The Ursinus Weekly, November 23, 1914
Student Volunteers hold convention The William H. Baldwin prize for 1915 Last game lost by the varsity The relation of physics to chemistry and biology Literary societies Exchanges
Ursinus College Collegeville Pennsylvania newspaper Football YMCA YWCA Zwinglian literary society Schaff literary society cultural history Higher Education Liberal Studies Social History United States History
Published by: Ursinus College
Helmuth Plessner and <i>The Delayed Nation</i>
Helmuth Plessner’s The Delayed Nation was a key text in the Sonderweg narrative that dominated the writing of German history from the later 1950s to the mid-1980s: the idea that the disaster of the Third Reich and the...
Joachim Whaley
Nov 18, 2019
Good Company
Ricky Baldwin
Jan 01, 0001
A poem
Winthrop Anthology Creative Writing art poetry prose writing Magazine Literary Magazine Creative Writing poetry
Published by: Winthrop University
Reevaluating the evidence for a Hadean-Eoarchean dynamo.
Cauê S Borlina, Benjamin P Weiss, Eduardo A Lima, Fengzai Tang, Richard J M Taylor, Joshua F Einsle, Richard J Harrison, Roger R Fu, Elizabeth A Bell, Ellen W Alexander, Heather M Kirkpatrick, Matthew M Wielicki, T Mark Harrison, Jahandar Ramezani, Adam C Maloof
May 16, 2020
The time of origin of the geodynamo has important implications for the thermal evolution of the planetary interior and the habitability of early Earth. It has been proposed that detrital zircon grains from Jack Hills, Western...
Published by: Science advances
Singing for successful ageing
Community-based preventative programmes are increasing in demand as the UK seeks alternative ways of supporting the growing number of older adults. As the use and promotion of preventative programmes increase, so does the need...
The Wizarding World of Resilience
Resilience is defined as the capacity to recover quickly from difficulties. In recent years, there has been a marked decrease in resilience in young adults. In higher education, this decline has resulted in increased anxiety and...
Published by: Winthrop University
Ergodicity and large deviations in physical systems with stochastic dynamics
Robert L. Jack
Jun 06, 2020
Abstract: In ergodic physical systems, time-averaged quantities converge (for large times) to their ensemble-averaged values. Large deviation theory describes rare events where these time averages differ significantly from the...
Singing for successful ageing
Community-based preventative programmes are increasing in demand as the UK seeks alternative ways of supporting the growing number of older adults. As the use and promotion of preventative programmes increase, so does the need...
Dynamical phase transitions in supercooled liquids
We study dynamical phase transitions in a model supercooled liquid. These transitions occur in ensembles of trajectories that are biased towards low (or high) dynamical activity. We compare two different measures of activity...
Investigating amorphous order in stable glasses by random pinning
We investigate stable glassy states that are found when glass-forming liquids are biased to lower than average dynamical activity. By pinning the positions of randomly chosen particles, we show that many-body correlations in...
Random pinning in glassy spin models with plaquette interactions
We use a random pinning procedure to study amorphous order in two glassy spin models. On increasing the concentration of pinned spins at constant temperature, we find a sharp crossover (but no thermodynamic phase transition)...
Phase transition for quenched coupled replicas in a plaquette spin model of glasses
We study a three-dimensional plaquette spin model whose low temperature dynamics is glassy, due to localized defects and effective kinetic constraints. The thermodynamics of this system is smooth at all temperatures. We show...
Optimising self-assembly through time-dependent interactions
We demonstrate a simple method by which time-dependent interactions can be exploited to improve self-assembly in colloidal systems. We apply this method to two systems: a model colloid with a short-ranged attractive potential...
Ergodicity and large deviations in physical systems with stochastic dynamics
Abstract
In ergodic physical systems, time-averaged quantities converge (for large times) to their ensemble-averaged values. Large deviation theory...
RL Jack
Apr 22, 2021
Ergodicity and large deviations in physical systems with stochastic dynamics
Robert L. Jack
Jul 14, 2020
Abstract: In ergodic physical systems, time-averaged quantities converge (for large times) to their ensemble-averaged values. Large deviation theory describes rare events where these time averages differ significantly from the...
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