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Breather initial profiles in chains of weakly coupled anharmonic oscillators

A systematic correlation between the initial profile of discrete breathers and their frequency is described. The context is that of a very weakly harmonically coupled chain of softly anharmonic oscillators. The results are structurally stable, that is, robust under changes of the on-site potential and are illustrated numerically for several standard choices. A precise genericity theorem for the results is proved.Comment: 12 pages, 4 figure

Influence of choice on motivation to learn for students with autism: Effect on student interest, writing achievement, latency, and behavior

Improving learning outcomes and increasing motivation to learn for students with autism is a growing concern for educators today. While schools strive to fully include students with autism in general education classrooms, the number of children diagnosed with an autism spectrum disorder continues to rise, increasing the need for effective interventions that educators can easily implement in their classrooms. This pilot study investigates the influence of choice on a second grade student with autism and his motivation to write. His teacher’s perception on the use and effectiveness of choice in her classroom is also examined. Using a single-subject baseline design, the variable of choice showed increased student interest and decreased latency to begin writing tasks. Teacher interviews supported the findings that student choice improved interest and learning outcomes for the student with autism; ease of implementation and increased classroom enthusiasm were noted

New life for old churches: a multi-case study of four turnaround small churches

https://place.asburyseminary.edu/ecommonsatsdissertations/1122/thumbnail.jp

An Exploration of Satisfaction, Psychological Stress, and Readiness for Interprofessional Learning in Medical, Nursing, Allied Health, and Social Work Students in an Interprofessional Health Care Course

Medical errors are a prominent problem in health care systems in many countries, including the U.S. One source of medical errors is communication and collaboration between health care team members. Many medical, nursing, and allied health care programs have implemented interprofessional health carecourses to improve communication between future team members. However, a dearth of literature on the effectiveness of interprofessional education and the variables that may influence its efficacy continues to persist. This survey research explored medical, nursing, occupational therapy, physical therapy, and social work students\u27 achievement of knowledge, psychologicalstress, and satisfaction in an interprofessional health care course. Ninety-six students enrolled in medical, nursing, occupational therapy, physical therapy, and social work academic programs were surveyed following their completion of a 6-week, problem-based learning, interprofessional health carecourse. Students, overall, acknowledged improved achievement of interprofessional health care knowledge after completion of the course and were satisfied with the course. Results found differences between disciplines in the area of achievement of knowledge, psychological stress, and course satisfaction. Notably, medical students were found to benefit the least from the course in terms of achievement of knowledge and also reported the lowest satisfaction scores when compared with other disciplines. Medical, occupational therapy, and physical therapy students reported higher psychological stress than nursingstudents. A positive relationship was revealed between the length of the students\u27 program experience and students\u27 professional identity, amounts of time spent studying and psychological stress, and satisfaction and achievement of knowledge. A negative relationship was found between time spent studying and achievement of knowledge, and psychological stress and length of time in the students\u27 academic disciplines No relationship was established between the time of the semester in which the course was offered and students\u27 achievement of knowledge, course satisfaction, and psychological stress. Variables that may warrant consideration when designing interprofessional health care curricula include discipline-specific values as they relate to interprofessional collaboration, students\u27 professional identity acquisition, the amount of time students dedicate to studying, and students\u27 psychologicalstress. Additional research is needed to further understand the complexities that influence students\u27 learning in interprofessional health care courses

Stratigraphy of the Hawai'i Scientific Drilling Project core (HSDP2): Anatomy of a Hawaiian shield volcano

The Hawai'i Scientific Drilling Project (HSDP2) successfully drilled ∼3.1 km into the island of Hawai'i. Drilling started on Mauna Loa volcano, drilling 247 m of subaerial lavas before encountering 832 m of subaerial Mauna Kea lavas, followed by 2019 m of submarine Mauna Kea volcanic and sedimentary units. The 2.85 km stratigraphic record of Mauna Kea volcano spans back to ∼650 ka. Mauna Kea subaerial lavas have high average olivine contents (13 vol.%) and low average vesicle abundances (10 vol.%). Most subaerial Mauna Kea flows are ‘a‘ā (∼63%), whereas the Mauna Loa section contains nearly equal amounts of pāhoehoe and ‘a‘ā (like its current surface). The submarine Mauna Kea section contains an upper, ∼900 m thick, hyaloclastite-rich section and a lower, ∼1100 m thick, pillow-lava-dominated section. These results support a model that Hawaiian volcanoes are built on a pedestal of pillow lavas capped by rapidly quenched, fragmented lava debris. The HSDP2 section is compared here to a 1.7 km deep hole (SOH1) on Kilauea's lower east rift zone. Differences in the sections reflect the proximity to source vents and the lower magma supply to Kilauea's rift zone. Both drill core sections are cut by intrusions, but the higher abundance of intrusions in SOH1 reflects its location within a rift zone, causing more extensive alteration in the SOH1 core. The HSDP2 site recovered a relatively unaltered core well suited for geochemical analyses of the single deepest and most complete borehole ever drilled through a Hawaiian or any other oceanic island volcano

New G₂-holonomy cones and exotic nearly Kahler structures on S⁶ and S³ x S³

There is a rich theory of so-called (strict) nearly Kaehler manifolds, almost-Hermitian manifolds generalising the famous almost complex structure on the 6-sphere induced by octonionic multiplication. Nearly Kaehler 6-manifolds play a distinguished role both in the general structure theory and also because of their connection with singular spaces with holonomy group the compact exceptional Lie group G_{2}: the metric cone over a Riemannian 6-manifold M has holonomy contained in G_{2} if and only if M is a nearly Kaehler 6-manifold. A central problem in the field has been the absence of any complete inhomogeneous examples. We prove the existence of the first complete inhomogeneous nearly Kaehler 6-manifolds by proving the existence of at least one cohomogeneity one nearly Kaehler structure on the 6-sphere and on the product of a pair of 3-spheres. We conjecture that these are the only simply connected (inhomogeneous) cohomogeneity one nearly Kaehler structures in six dimensions