8,322 research outputs found
Geometrical Properties of Conformal Field Theories Coupled to Two-Dimensional Quantum Gravity
In this work we discuss an approach due to F. David to the geometry of world
sheets of non-critical strings in quasiclassical approximation. The
gravitational dressed conformal dimension is related to the scaling behavior of
the two-point function with respect to a distance variable. We show how this
approach reproduces the standard gravitational dressing in the next order of
perturbation theory. With the same technique we calculate the intrinsic
Hausdorff dimension of a world sheet.Comment: 10 pages, TeX, no figure
Charge migration in organic materials: Can propagating charges affect the key physical quantities controlling their motion?
Charge migration is a ubiquitous phenomenon with profound implications
throughout many areas of chemistry, physics, biology and materials science. The
long-term vision of designing functional materials with tailored molecular
scale properties has triggered an increasing quest to identify prototypical
systems where truly molecular conduction pathways play a fundamental role. Such
pathways can be formed due to the molecular organization of various organic
materials and are widely used to discuss electronic properties at the nanometer
scale. Here, we present a computational methodology to study charge propagation
in organic molecular stacks at nano and sub-nanoscales and exploit this
methodology to demonstrate that moving charge carriers strongly affect the
values of the physical quantities controlling their motion. The approach is
also expected to find broad application in the field of charge migration in
soft matter systems.Comment: 18 pages, 6 figures, accepted for publication in the Israel Journal
of Chemistr
Barriers and Facilitators of Suicide Risk Assessment in Emergency Departments: A Qualitative Study of Provider Perspectives
Objective
To understand emergency department (ED) providers’ perspectives regarding the barriers and facilitators of suicide risk assessment and to use these perspectives to inform recommendations for best practices in ED suicide risk assessment. Methods
Ninety-two ED providers from two hospital systems in a Midwestern state responded to open-ended questions via an online survey that assessed their perspectives on the barriers and facilitators to assess suicide risk as well as their preferred assessment methods. Responses were analyzed using an inductive thematic analysis approach. Results
Qualitative analysis yielded six themes that impact suicide risk assessment. Time, privacy, collaboration and consultation with other professionals and integration of a standard screening protocol in routine care exemplified environmental and systemic themes. Patient engagement/participation in assessment and providers’ approach to communicating with patients and other providers also impacted the effectiveness of suicide risk assessment efforts. Conclusions
The findings inform feasible suicide risk assessment practices in EDs. Appropriately utilizing a collaborative, multidisciplinary approach to assess suicide-related concerns appears to be a promising approach to ameliorate the burden placed on ED providers and facilitate optimal patient care. Recommendations for clinical care, education, quality improvement and research are offered
An Orange Grove In California
https://digitalcommons.library.umaine.edu/mmb-vp/4029/thumbnail.jp
Lady Of The Evening
https://digitalcommons.library.umaine.edu/mmb-vp/1940/thumbnail.jp
The Syncopated Vamp
https://digitalcommons.library.umaine.edu/mmb-vp/2566/thumbnail.jp
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