Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 9 of 9 for “"negative contrast"”.
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Do Rats Consume Ethanol to Regulate a Negative Emotion Induced by a Successive Negative Contrast Procedure?
… engage in other behaviors in order to reduce a negative emotional state (Khantzian, 1985; Gross, 2013; Crum et al., 2013). Rats experiencing a negative state induced by various stressors (Bertholomey et al., 2010), or a decrease or loss in reward value of a sucrose solution (Manzo et al., 2015; …
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Evaluating Sex and Line Differences in Successive Negative Contrast and Ethanol Consumption Using Alcohol Preferring and High Alcohol Drinking Rats
… loss. Life events such as these can induce negative emotional reactions (e.g., anxiety and stress) which have been associated with increased drinking and in turn, an increased risk of developing an alcohol use disorder (AUD) (Keyes et al., 2011, Sinha, 2008). The present study used a …
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Effects of prior taste experience on palatability as measured by salivary response
… pizza in sessions one and two. Positive and negative contrast effects were also evidenced by these data. The meal duration and latency to start eating data yielded highly similar responses among groups over days.
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Recovering the Orientation of Textured Surfaces in Natural Scenes (Image Processing)
… or to foreground and background. The positive-contrast and negative-contrast regions of each image are analyzed separately. The two analyses often result in slant and tilt estimates that are within ten degrees of each other; images where the discrepancy is larger have specific textural …
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Encapsulated Contrast Agent Markers For Mri-Based Post-Implant Dosimetry
… seed localization, MRI markers with encapsulated contrast agent that provide positive-contrast on MRI images (Sirius MRI markers; C4 Imaging, Houston, TX) have been proposed to be placed adjacent to the negative-contrast seeds. This dissertation describes the development of the Sirius MRI markers …
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Effects of Font Design on Highway Sign Legibility
… font was created, Clearview, to help combat the negative effects of Standard Highway Alphabet. This font received interim approval in 2004, which was removed in 2016 due to ambiguous results from studies as to whether it was more beneficial than Highway Gothic. It was reinstated two years later, …
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Expansion Microscopy of Extracellular Space for Light Microscopy-Based Connectomic Analysis
… neural tissue makes it an attractive target for contrast-based techniques such as shadow imaging, where the ECS is selectively labeled to produce negative contrast, revealing cell shapes and boundaries as unlabeled silhouettes within a labeled background. Although ECS delineation in fixed tissue …
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Deep structure ultrasound imaging using fundamental and third harmonic coded excitation techniques
… lateral resolution, penetration depth and the contrast-to-noise ratio (CNR) for an ultrasonic imaging system. The thickness mode of piezoelectric transducers produces a signal that is resonant at a fundamental frequency and odd harmonics. This behavior is exploited using coded excitation …
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Multiple schedules: the effects of temporal factors on behaviour
… varied across hens. Local positive and local negative contrast were present in all hens’ data in some conditions but not in others. The conditions in which these phenomena occurred varied across hens. For three hens values of α declined across successive subintervals of components at all …