336 research outputs found
Complexity Heliophysics: A lived and living history of systems and complexity science in Heliophysics
In this piece we study complexity science in the context of Heliophysics,
describing it not as a discipline, but as a paradigm. In the context of
Heliophysics, complexity science is the study of a star, interplanetary
environment, magnetosphere, upper and terrestrial atmospheres, and planetary
surface as interacting subsystems. Complexity science studies entities in a
system (e.g., electrons in an atom, planets in a solar system, individuals in a
society) and their interactions, and is the nature of what emerges from these
interactions. It is a paradigm that employs systems approaches and is
inherently multi- and cross-scale. Heliophysics processes span at least 15
orders of magnitude in space and another 15 in time, and its reaches go well
beyond our own solar system and Earth's space environment to touch planetary,
exoplanetary, and astrophysical domains. It is an uncommon domain within which
to explore complexity science.
After first outlining the dimensions of complexity science, the review
proceeds in three epochal parts: 1) A pivotal year in the Complexity
Heliophysics paradigm: 1996; 2) The transitional years that established
foundations of the paradigm (1996-2010); and 3) The emergent literature largely
beyond 2010.
This review article excavates the lived and living history of complexity
science in Heliophysics. The intention is to provide inspiration, help
researchers think more coherently about ideas of complexity science in
Heliophysics, and guide future research. It will be instructive to Heliophysics
researchers, but also to any reader interested in or hoping to advance the
frontier of systems and complexity science
Podcasting in ANGEL
The presenters discuss creating and distributing podcasts through the ANGEL learning management shell
Professional Development on a Wing and a Prayer
Butler Community College\u27s Instructional Technology Department provides training to faculty five different ways. Incorporating the ANGEL Learning Management System we offer creative, inexpensive, 24/7 training. The session will explore these methods and participants will be encouraged to brainstorm about addition options. Come and share your ideas on how you currently support faculty and your thoughts about future ventures
The Archaeology and Materiality of Mission in Southern Africa: Introduction
The period since the late 1980s has yielded a vast body of multidisciplinary literature on mission in southern Africa. Archaeology’s contribution to this scholarship, however, has been relatively muted. In introducing this special issue on the archaeology and materiality of mission, we seek to add archaeological voices to this conversation, illustrating where contributors offer novel sources, research themes, and ways of considering encounters with Christianity. Far from simply adding material to fill the gaps left in the historical record, we argue that archaeological perspectives are well-positioned to explore ruptures and continuities through time, the tensions between peoples’ imaginations and lived realities, and how Christianity may not always have been ‘believed’ but was always materialised. Our hope is to spur a more interdisciplinary dialogue that focuses on the intellectual trajectories that archaeologists of mission pursue as much as on the objects that they find
A comprehensive analysis of multi-scale field aligned currents: Characteristics, controlling parameters, and relationships
We explore the characteristics, controlling parameters, and relationships of multi-scale field aligned currents (FACs) using a rigorous, comprehensive, and cross-platform analysis. Our unique approach combines FAC data from the Swarm satellites and the Advanced Magnetosphere and Planetary Electrodynamics Response Experiment (AMPERE) to create a database of small-scale (∼10-150 km, 250 km) FACs. We examine these data for the repeatable behavior of FACs across scales (i.e., the characteristics), the dependence on the interplanetary magnetic field (IMF) orientation, and the degree to which each scale ‘departs’ from nominal large-scale specification. We retrieve new information by utilizing magnetic latitude and local time dependence, correlation analyses, and quantification of the departure of smaller from larger scales. We find that: 1) FACs characteristics and dependence on controlling parameters do not map between scales in a straight forward manner; 2) relationships between FAC scales exhibit local time dependence; and 3) the dayside high-latitude region is characterized by remarkably distinct FAC behavior when analyzed at different scales, and the locations of distinction correspond to ‘anomalous’ ionosphere-thermosphere (IT) behavior. Comparing with nominal large-scale FACs, we find that differences are characterized by a horseshoe shape, maximizing across dayside local times, and that difference magnitudes increase when smaller scale observed FACs are considered. We suggest that both new physics and increased resolution of models are required to address the multi-scale complexities. We include a summary table of our findings to provide a quick reference for differences between multi-scale FACs
Food Purchasing Behavior And Price Interventions: How Taxes And Subsidies Affect Grocery Store Food Choices In A Field Study
Do price interventions, namely taxes on unhealthy food and subsidies on healthy food, affect food-purchasing behavior? If so, can they be used to improve health? With the intent to better understand these questions as well as the general dynamics between food preference and price, this paper (a) provides a theoretical framework for understanding purchasing behavior of lower income households subject to taxes and subsidies, and (b) estimates the effects of a price intervention by using data from a six-month field experiment where 212 households were randomized into a control or treatment group, where the treatment group faced a 5 percent tax on unhealthy foods and 5 percent subsidy on healthy foods relative to the control group. The theoretical model suggests that price interventions will have different, and sometimes undesirable, effects depending on the individual's preferences, with lower income individuals being more likely to be negatively impacted by a tax. In the empirical model, the combined tax and subsidy had little effect on household purchasing behavior, and did not increase food purchases in important health-related categories such as fruits and vegetables. To policy makers these results suggest that small taxes and subsidies may not help individuals make better, healthier, food choices. ii
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