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Agent Choice (agent + choice)
Selected AbstractsMolecular Contrast Optical Coherence Tomography: A Review,PHOTOCHEMISTRY & PHOTOBIOLOGY, Issue 2 2005Changhuei Yang ABSTRACT This article reviews the current state of research on the use of molecular contrast agents in optical coherence tomography (OCT) imaging techniques. After a brief discussion of the basic principle of OCT and the importance of incorporating molecular contrast agent usage into this imaging modality, we shall present an overview of the different molecular contrast OCT (MCOCT) methods that have been developed thus far. We will then discuss several important practical issues that define the possible range of contrast agent choice, the design criteria for engineered molecular contrast agent and the implementability of a given MCOCT method for clinical or biological applications. We will conclude by outlining a few areas of pursuit that deserve a greater degree of research and development. [source] A scientific approach to agent selectionAUSTRALIAN JOURNAL OF ENTOMOLOGY, Issue 4 2006Rieks D Van Klinken Abstract, The prioritisation of potential agents on the basis of likely efficacy is an important step in biological control because it can increase the probability of a successful biocontrol program, and reduce risks and costs. In this introductory paper we define success in biological control, review how agent selection has been approached historically, and outline the approach to agent selection that underpins the structure of this special issue on agent selection. Developing criteria by which to judge the success of a biocontrol agent (or program) provides the basis for agent selection decisions. Criteria will depend on the weed, on the ecological and management context in which that weed occurs, and on the negative impacts that biocontrol is seeking to redress. Predicting which potential agents are most likely to be successful poses enormous scientific challenges. ,Rules of thumb', ,scoring systems' and various conceptual and quantitative modelling approaches have been proposed to aid agent selection. However, most attempts have met with limited success due to the diversity and complexity of the systems in question. This special issue presents a series of papers that deconstruct the question of agent choice with the aim of progressively improving the success rate of biological control. Specifically they ask: (i) what potential agents are available and what should we know about them? (ii) what type, timing and degree of damage is required to achieve success? and (iii) which potential agent will reach the necessary density, at the right time, to exert the required damage in the target environment? [source] Life Stories, War, and Veterans: On the Social Distribution of MemoriesETHOS, Issue 1 2004Edna Lomsky-Feder On the basis of examining life stories narrated by 63 Israeli male veterans of the 1973 Yom Kippur War, this article delves into the social construction of personal memory. Focusing on the remembering subject will allow us to study this process by highlighting the agent who creates his or her world, but at the same time it will disclose how society frames and channels the agent's choices. My contention is that personal memory (traumatic or normalizing, conforming or critical) is embedded within, designed by, and derives its meaning from, a memory field that offers different interpretations of war. Yet this memory field is not an open space, and the remembering subject is not free to choose any interpretation he wishes. Cultural criteria "distribute" accessibility to different collective memories according to social entitlement. These "distributive criteria" dictate who is entitled to remember and what is to be remembered, thereby controlling the extent of trauma and criticism of personal memory. [source] ,Dark Matter': Institutional Constraints and the Failure of Party-based Euroscepticism in GermanyPOLITICAL STUDIES, Issue 2 2002Charles Lees The article is built on four propositions. First, there is a latent potential within the German polity for the mobilisation of what remains a significant level of popular unease about aspects of the ongoing process of European integration. Second, at present this potential is unfulfilled and, as a result, Euroscepticism remains the ,dark matter' of German politics. Third, the absence of a clearly stated Eurosceptical agenda is not due to the inherent ,enlightenment' of the German political class about the European project, but rather is the result of systemic disincentives shaping the preferences of rational acting politicians. Finally, these systemic disincentives are to be found within the formal institutions of the German polity. The key ideas here are of ,hard' versus ,soft' Eurosceptical narratives, sustained versus heresthetic agendas, and ,polis constraining' versus ,polis shaping' strategies for their promotion. Political agents' choice of strategy depends on the nature of the institutional setting within which they are operating. The institutional configuration of the Federal Republic provides poor returns for party-based Euroscepticism. The mobilisation of popular unease about aspects of European integration remains an unattractive option for rational acting political agents. [source] | |||||||||||||