Potential-induced ordering transition of the adsorbed layer at the ionic liquid/electrified metal interface.

The potential-driven ordering transition of a LiCl layer adsorbed on the (100) surface of a metallic aluminum electrode is studied by molecular dynamics simulations. The transition causes a sharp peak in the potential dependence of the differential capacitance of the interface. This result is in qualitative agreement with recently reported experimental work on the interface between a room temperature ionic liquid and a well-defined Au(100) surface.

Ion adsorption at a metallic electrode: an ab initio based simulation study.

A method for parametrizing, from first principles density functional theory calculations, a model of the interactions between the ions in an ionic liquid and a metallic (electrode) surface is described. The interaction model includes the induction of dipoles on the ions of the liquid by their mutual interaction and the interaction with the electrode surface as well as the polarization of the metal by the ionic charges and dipoles ('image' interactions). The method is used to obtain a suitable interaction model for a system consisting of a LiCl liquid electrolyte and a solid aluminium electrode.

Adapting RARE to assess barriers to service receipt among people out of care.

This paper describes the components of Rapid Assessment, Response and Evaluation (RARE), developed for HIV prevention planning; the adaptation of its methods to services planning; the venues in which the use of RARE was recommended for the present Care System Assessment Demonstration Project; constraints on what projects using RARE and the system assessment model may expect to accomplish; the focus of RARE questions for the project, concerning the characteristics of PLWH not in regular primary care, the care system as PLWH not in care perceive and experience it, and characteristics of the physical and social environments in which they live; how information from RARE can contribute to the enhancement of care systems; and the types of questions that sites could ask to gather RARE information for services planning.

The care system assessment model and its operationalization.

The care system assessment model is intended to help community planning bodies for HIV services conduct systematic evaluations of existing care systems, with an eye toward changing them to make services more accessible to people living with HIV (PLWH) from underserved minority communities. The model has four structural and three cultural/behavioral dimensions. The structural dimensions are system comprehensiveness, capacity, integration, and accessibility; the cultural/behavioral dimensions are service acceptability, technical competencies (of both providers and potential system users), and client health-seeking behaviors.

Background--the origins of the care system assessment demonstration project.

The Care System Assessment Demonstration Project was designed to assist community planning bodies in determining barriers to care for people living with HIV (PLWH) in selected underserved minority populations and generating recommendations for care system enhancement that would lower those barriers. This paper describes the selection of three sites to participate in the project and sketches the two primary tools used in implementing the project: Rapid Assessment, Response and Evaluation (RARE) techniques initially developed to assess community HIV prevention needs, and a system assessment model created to help communities conduct systematic evaluations of their HIV care systems. The paper also provides an overview of the remaining chapters of the supplement, detailing how the project was implemented at the national level and the three participating sites and evaluating both the project's process and its local impact.