Electric Field Controlled Magnetic Anisotropy in a Single Molecule

We have measured quantum transport through an individual Fe$_4$ single-molecule magnet embedded in a three-terminal device geometry. The characteristic zero-field splittings of adjacent charge states and their magnetic field evolution are observed in inelastic tunneling spectroscopy. We demonstrate that the molecule retains its magnetic properties, and moreover, that the magnetic anisotropy is significantly enhanced by reversible electron addition / subtraction controlled with the gate voltage. Single-molecule magnetism can thus be electrically controlled

Historical Institutionalism and Foreign Policy Analysis: The Origins of the National Security Council Revisited

The article develops the insights of historical institutionalism and cognate work within International Relations to examine the development of security institutions within states, dealing specifically with the development of the National Security Council (NSC) in the United States. The case focuses on the creation and reproduction of the NSC as a means to fostering civil-military coordination within the US state. The article argues that exogenous shocks are crucial in providing the necessary freedom to change existing institutions, which are then set on new contingent paths. Substantively, it is argued that World War II and the experiences derived from it provided a critical juncture for the creation of new security institutions such as the NSC, and once created the NSC was characterized by forms of path dependence that have reproduced the institution over time. The article demonstrates how historical institutionalism can clarify causal mechanisms that better explain the origins and durability of internationally oriented security institutions within states. © 2010 International Studies Association

Emerging communities of child-healthcare practice in the management of long-term conditions such as chronic kidney disease: Qualitative study of parents' accounts

Background: Parents of children and young people with long-term conditions who need to deliver clinical care to their child at home with remote support from hospital-based professionals, often search the internet for care-giving information. However, there is little evidence that the information available online was developed and evaluated with parents or that it acknowledges the communities of practice that exist as parents and healthcare professionals share responsibility for condition management. Methods. The data reported here are part of a wider study that developed and tested a condition-specific, online parent information and support application with children and young people with chronic-kidney disease, parents and professionals. Semi-structured interviews were conducted with 19 fathers and 24 mothers who had recently tested the novel application. Data were analysed using Framework Analysis and the Communities of Practice concept. Results: Evolving communities of child-healthcare practice were identified comprising three components and several sub components: (1) Experiencing (parents making sense of clinical tasks) through Normalising care, Normalising illness, Acceptance & action, Gaining strength from the affected child and Building relationships to formalise a routine; (2) Doing (Parents executing tasks according to their individual skills) illustrated by Developing coping strategies, Importance of parents' efficacy of care and Fear of the child's health failing; and (3) Belonging/Becoming (Parents defining task and group members' worth and creating a personal identity within the community) consisting of Information sharing, Negotiation with health professionals and Achieving expertise in care. Parents also recalled factors affecting the development of their respective communities of healthcare practice; these included Service transition, Poor parent social life, Psycho-social affects, Family chronic illness, Difficulty in learning new procedures, Shielding and avoidance, and Language and cultural barriers. Health care professionals will benefit from using the communities of child-healthcare practice model when they support parents of children with chronic kidney disease. Conclusions: Understanding some of the factors that may influence the development of communities of child-healthcare practice will help professionals to tailor information and support for parents learning to manage their child's healthcare. Our results are potentially transferrable to professionals managing the care of children and young people with other long-term conditions. © 2014 Carolan et al.; licensee BioMed Central Ltd

Assessing Interaction Networks with Applications to Catastrophe Dynamics and Disaster Management

In this paper we present a versatile method for the investigation of interaction networks and show how to use it to assess effects of indirect interactions and feedback loops. The method allows to evaluate the impact of optimization measures or failures on the system. Here, we will apply it to the investigation of catastrophes, in particular to the temporal development of disasters (catastrophe dynamics). The mathematical methods are related to the master equation, which allows the application of well-known solution methods. We will also indicate connections of disaster management with excitable media and supply networks. This facilitates to study the effects of measures taken by the emergency management or the local operation units. With a fictious, but more or less realistic example of a spreading epidemic disease or a wave of influenza, we illustrate how this method can, in principle, provide decision support to the emergency management during such a disaster. Similar considerations may help to assess measures to fight the SARS epidemics, although immunization is presently not possible

Effective-Lagrangian approach to precision measurements: the anomalous magnetic moment of the muon

We investigate the use of effective Lagrangians to describe the effects on high-precision observables of physics beyond the Standard Model. Using the anomalous magnetic moment of the muon as an example, we detail the use of effective vertices in loop calculations. We then provide estimates of the sensitivity of new experiments measuring the muon's $g - 2$ to the scale of physics underlying the Standard Model.Comment: 22 pages, 1 figure, PHYZZX & EPSF, report #s UCRHEP-T98, UM_TH-92-17, and NSF-ITP-92-122I Revision: The paper will now TeX properly; the content is unchange

Optimizing nitrogen rates in Camelina sativa

Non-Peer ReviewedCamelina is a new oilseed crop to western Canada with potential applications in cosmetics, human nutrition, and biofuel. Nitrogen recommendations for camelina production in Western Canada aren’t available. Field studies were conducted in 2008 and 2009 for 10 site years at locations in western Canada to determine the effect of nitrogen rate on seed yield. Depending on the experiment, nitrogen rates ranged from 0 to 200 kg ha-1. The join point (N rate at which yields plateau) for camelina were 111 to 116 kg ha-1, which is similar to other Brassica oilseed species

A qualitative study exploring the relationship between nursing and health promotion language, theory and practice

The definitions and meaning qualified nurses employed in an acute NHS hospital setting in the UK gave to health education and health promotion practice and how these fitted established language and theory were investigated qualitatively. These concepts, and the concomitant frameworks and models of practice, have been the subject of considerable debate in the literature. While unresolved both in general and in nursing, a degree of theoretical convergence was established in the 1990s [Bunton, R., Macdonald, G., 1992. Health promotion: disciplines and diversity. Routledge, London; Maben, J.M., Macleod Clark, J. 1995. Health promotion: a concept analysis. Journal of Advanced Nursing 22, 1158–165] helped by The Ottawa Charter [WHO, 1986. Ottawa Charter for Health Promotion. http://www.who.int/hpr/archive/docs/ottawa.html]. For many of the participants in this study however, the meanings given to these concepts and the predominant use of health education were inconsistent with much of the language of the wider debate and this has potential implications for nurse education. For, if the findings are considered transferable then there is a need to develop education strategies and curricula that articulate the ideological foundations of policy and practice and to use mainstream terminology to assist nurses both to understand and contribute to the contemporary health promotion debate