Academic literature on the topic 'Diagnostic agent'

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Dissertations / Theses on the topic "Diagnostic agent"

1

Rokka, Johan. "Agent-Based Argumentative Diagnostic Reasoning in Dementia." Thesis, Umeå universitet, Institutionen för datavetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-52092.

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This thesis describes the development of a source-based argumentation dialogue system in the medical domain of dementia. Its aim is to enable a physician and a computer agent to establish the presence or absence of a dementia condition or diagnoses for a specific patient. The participants take turn in making the moves in a dialogue, every move consists of an argument or a critical question (a challenge) and during the process of arguments and counterarguments an argumentation-tree, in which a winner may be declared, is constructed.The following four particular problems are formulated and solve
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Haigh, Julian Saunders. "Investigation in to the Effect of Spin Locking on Contrast Agent Relaxivity." PDXScholar, 2015. http://pdxscholar.library.pdx.edu/open_access_etds/2496.

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The current trend in magnetic resonance imaging (MRI) is towards higher external magnetic field strengths (B0) to take advantage of increased sensitivity and signal to noise ratio (SNR). Unfortunately, as (B0) increases the effectiveness (relaxivity) of clinical gadolinium (Gd3+)-based contrast agents (CAs) administered to enhance image contrast is significantly reduced. Excellent soft tissue contrast can be generated with current agents despite their non-optimum relaxivities but necessitates large doses. The limits of detection of a CA at high B0 fields can be lowered by recovering the lost r
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Kandanapitiye, Murthi S. "Synthesis of Biocompatible Nanoparticulate Coordination Polymers for Diagnostic and Therapeutic Applications." Kent State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=kent1429019837.

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Dumont, Julien. "Systèmes multi-agent pour le diagnostic pluri-disciplinaire." Phd thesis, Ecole Nationale Supérieure des Mines de Saint-Etienne, 2011. http://tel.archives-ouvertes.fr/tel-00844133.

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Ce travail de recherche est consacré à la formalisation et à la réalisation d'un processus de diagnostic pluridisplinaire. La particularité d'un tel diagnostic résulte du fait qu'il nécessite de nombreux spécialistes, chacun ayant des connaissances sur leur domaine. Le problème principal réside dans les interconnexions entre les domaines. Ces interconnexions peuvent ou non être connues et influer sur le diagnostic. Dans ce manuscrit, nous proposons de réaliser un diagnostic pluridisciplinaire l'aide d'un système multi-agents. Les agents élaborent un diagnostic local à un domaine puis, fusionne
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COSTA, ANDREW DINIZ DA. "A HYBRID DIAGNOSTIC-RECOMMENDATION APPROACH FOR MULTI-AGENT SYSTEMS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2008. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=13383@1.

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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>Sistemas multi-agentes são sociedades com agentes autônomos e heterogêneos que podem trabalhar em conjunto para alcançar objetivos similares ou totalmente diferentes. Quando falhas acontecem enquanto algum agente de software tenta alcançar seus objetivos, torna-se importante entender porque tais falhas acontecem e o que pode ser feito para remediar tais problemas. Considerando o ambiente distribuído, dinâmico e a natureza dos sistemas multi-agentes, é importante definir os requisitos necessários para realizar diagnósticos
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Touaf, Samir. "Diagnostic logique des systèmes complexes dynamiques dans un contexte multi-agent." Université Joseph Fourier (Grenoble), 2005. http://www.theses.fr/2005GRE10038.

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Cette thèse propose une méthodologie pour la conception de systèmes de diagnostic fiables permettant d'appréhender les systèmes dynamiques complexes et spatialement distribués. Les résultats proposés s'appuient d'une part sur des techniques d'analyse diagnostic formelle ou à base de consistance, qui permettent de garantir la justesse de l'analyse diagnostic, et d'autre part, sur le paradigme multiagents. Les algorithmes proposés permettent de déduire tous les défauts possibles pour un comportement observé en les classant suivant différents critères de vraisemblance. Notre contribution a consis
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Hughes-Riley, Theodore. "Development and application of hyperpolarized krypton-83 as a new MRI contrast agent." Thesis, University of Nottingham, 2014. http://eprints.nottingham.ac.uk/14460/.

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Hyperpolarized (hp) gases such 129Xe and 83Kr (spin I = 1/2 and I = 9/2 respectively) can allow for significantly enhanced signal in a number of magnetic resonance applications. As a result there has been a growing interest in recent years to advance hp noble gas technology to non-invasively image the airspace of lungs, with the goal of developing a helpful probe for lung pathologies. 83Kr longitudinal relaxation (T1) has been shown to be sensitive to various surface properties, and may prove to be an interesting for identifying certain diseases including those that change surface chemistry (s
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Kumar, Akhauri Prakash. "Agent based diagnostic system for the defect analysis during chemical mechanical polishing (CMP)." Heimsheim Jost-Jetter, 2005. http://deposit.d-nb.de/cgi-bin/dokserv?idn=976561247.

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Bryson, Joshua Matthew. "The Design and Study of Lanthanide-Chelating Macromolecular Diagnostic and Delivery Agents." Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/28726.

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Macromolecular magnetic resonance imaging (MRI) contrast agents have unique localization and contrast enhancement properties. We have designed and studied a monodisperse paramagnetic β-cyclodextrin click cluster (Gd10) decorated with Gd-containing arms and unique contrast enhancing polymers. To synthesize Gd10, a novel alkyne-functionalized diethylenetriaminetetraacetic acid chelate was created and coupled to a per-azido-β-cyclodextrin core and chelated with Gd(III) to yield the precursor macromolecule. Luminescence measurements were carried out using an analogous structure Eu(III)-containing
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Travagin, Fabio. "Synthesis of new contrast agents for biomedical applications." Doctoral thesis, Università del Piemonte Orientale, 2021. http://hdl.handle.net/11579/127849.

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Several different metal complexes are currently used in diagnostics and therapy (MRI, PET, SPECT, OI, TAT etc.). For their preparation a chelating agent (CA) is mandatory to hold the metal ion, to reduce its toxicity and to target its activity. Polyaminocarboxylates and polyaminophosphonates represent the best choice of CAs for the preparation of metal complexes exploited as imaging probes. These scaffolds ensure high thermodynamic and kinetic stability of the corresponding metal complex. However, their preparation is not always straightforward. During this PhD the research work was focused o
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