Structure analysis of single- and multi-frequency subspace migrations in inverse scattering problems

In this literature, we carefully investigate the structure of single- and multi-frequency imaging functions, that are usually employed in inverse scattering problems. Based on patterns of the singular vectors of the Multi-Static Response (MSR) matrix, we establish a relationship between imaging functions and the Bessel function. This relationship indicates certain properties of imaging functions and the reason behind enhancement in the imaging performance by multiple frequencies. Several numerical simulations with a large amount of noisy data are performed in order to support our investigation.Comment: 11 pages, 10 figure

The Effect of Patient's Asymmetric Information Problem on Medical Care Utilization with Consideration of a Patient's Ex-ante Health Status

Even if a patient's access to health information has been enhanced, a patient still doesn't have enough ability to utilize it. Therefore, a doctor's effort to sincerely communicate with a patient might affect the patient's use of medical care. This paper builds up the empirical model and found the effect of a doctor's effort on patient's medical care use was significant and according to the ex-ante health status of a patient, a doctor's effort influenced a patient's medical care use in different way.asymmetry of information between doctor and patient, patient's medical care use, doctor's effort to effectively communicate with patients, patient's ex-ante health status

International Water Law’s Ability to Address Jordanian Water Insecurity

This comment studies international water law, specifically between Jordan and Israel, by detailing the complex history of Jordan and Israel. The comment analyzes the unique progression of previously feuding states, specifically Jordan and Israel, and looks to a hopeful future. Potential solutions will require an abundance of creativity and cooperation, something historically challenging for the Jordan River Basin region, but which is arguably possible with shared goals and understandings of the inescapable impact of climate change on the Jordan River Basin. Further, this comment hopes to shed light on a more sustainable future that can inspire the international community as an example of potential transboundary environmental cooperation and sustainability. This comment will first cover background of water law between Jordan and Israel, including the geopolitical context because water law is insufficient if complex regional issues are not considered. Then analyze the relationship between Jordan and Israel that supports cooperation, despite their tumultuous past. Finally, it will recommend both multilateral and unilateral solutions to stabilizing Jordan’s water crisis

Young Jo Kim, Assistant Professor of Chemical Engineering, CEPS travels to South Korea

Professor Kim visited two universities and two industries to network by giving talks and meeting with researchers to discuss lithium purification from brine as well as queous energy storage systems

Leadership models and community resilience to climate change events: A case study of an Alaskan bush village

ABSTRACT Climate change in the Arctic is happening at twice the rate of the rest of the world. Arctic communities are struggling to survive as the effects of these changes threaten the very fabric of their communities. Resilience to these climate change events is determined by many factors. Communities must be able to act collectively, use local knowledge, have access to financial resources, and participate in the decision making processes. All of these factors are determined by the effectiveness of the leadership models employed to reach specific community goals. Climate change events and leadership both occur at the local level. Studying the results produced by different leadership models employed in one Alaskan, Inupiaq village yields important insight into climate change and community resilience. The case study village uses three concurrent leadership styles to build community resilience for three different climate change events. The Native leadership model is being used for emergency preparedness and response to the increasing severity of fall storms and flooding. The rational bureaucratic leadership model is being used to build a protective sea wall to preserve and stabilize the eroding shoreline. The adaptive co-management model is being used to manage failing moose populations. Understanding the key role leadership has played in this community will provide pertinent insights for communities throughout the world suffering the effects of climate change

High fidelity sorting of remarkably similar components via metal-mediated assembly.

Subtle differences in ligand coordination angle and rigidity lead to high fidelity sorting between individual components displaying identical coordination motifs upon metal-mediated self-assembly. Narcissistic self-sorting can be achieved between highly similar ligands that vary minimally in rigidity and internal coordination angle upon combination with Fe(ii) ions and 2-formylpyridine. Selective, sequential cage formation can be precisely controlled in a single flask from a mix of three different core ligands (and 33 total components) differing only in the hybridization of one group that is uninvolved in the metal coordination process