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Results: 783
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
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
Workplace Research for Cataloguers
CE Sewell
May 18, 2018
For those outside academia, the word research can offer a scary image. People often picture a scientist in a lab surrounded by test tubes or a historian pouring over ancient documents which can seem miles away from the daily...
Published by: Catalogue and Index
Release Your Inner Superhero
Article exploring the Superhero Roadshow - a new way to encourage library staff to engage with their profession.
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...
Solitary solutions to the steady Euler equations with piecewise constant vorticity in a channel
We consider a two-dimensional, two-layer, incompressible, steady flow, with vorticity which is constant in each layer, in an infinite channel with rigid walls. The velocity is continuous across the interface, there is no surface...
New Skills, New Challenges
CE Sewell
Apr 19, 2018
Library staff are enthusiastic participants in professional development opportunities, something that is no real surprise in a constantly changing profession. As we move into 2018 changes in technology and service models show no...
Is it Time to Move on from MOOCs?
CE Sewell
Apr 19, 2018
Briefing article focusing on massive open online courses and whether they are useful for professional development.
Published by: CILIP Update
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
Developing the 21st Century Academic Librarian
The nature of academic librarianship is changing as librarians move away from the curation of material and into research support roles. Although this creates new opportunities it can be difficult for staff to learn the skills...
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...
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
Cognitive dysfunction in body dysmorphic disorder
Affective processing body dysmorphic disorder cognitive deficits cognitive inflexibility neurobiological Obsessive compulsive disorder Response inhibition Adult Attention Body Dysmorphic Disorders Case-Control Studies Cognitive Dysfunction Decision Making Female Humans INHIBITION Psychological Male Middle Aged Models Neurological Models Psychological Neurobiology Neuropsychological Tests Reaction Time Young Adult
Solitary solutions to the steady Euler equations with piecewise constant vorticity in a channel
We consider a two-dimensional, two-layer, incompressible, steady flow, with vorticity which is constant in each layer, in an infinite channel with rigid walls. The velocity is continuous across the interface, there is no surface...
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...
Large deviations in models of growing clusters with symmetry-breaking transitions.
Robert L Jack
Sep 03, 2019
We analyze large deviations of the magnetization in two models of growing clusters. The models have symmetry-breaking transitions, so the typical magnetization of a growing cluster may be either positive or negative, with equal...
Tracer dynamics in one dimensional gases of active or passive particles
Abstract
We consider one-dimensional systems comprising either active run-and-tumble particles (RTPs) or passive Brownian random walkers. These particles are either noninteracting...
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