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.
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Showing 1 to 20 of 1143 for “"contrasts"”.
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Novel contrasts in photoacoustic tomography
… imaging, with both endogenous and exogenous contrasts, at superior depths than pure optical methods. This dissertation explores novel absorption contrast mechanisms of PAT based on optical/thermal patterns, endogenous cellular chromophores, nanoparticles, small-molecule dyes and …
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Land-ocean contrasts under climate change
… physical understanding of these land-ocean contrasts has not been established, despite the robustness of the features and their importance for the regional and societal impacts of climate change. Here we investigate land-ocean contrasts in temperature, relative humidity, and precipitation …
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Statistical Analysis of Unreplicated Factorial Designs Using Contrasts
<p>Factorial designs can have a large number of treatments due to the number of factors and the number of levels of each factor. The number of experimental units required for a researcher to conduct a $k$ factorial experiment is at least the number of treatments. For such an experiment, the total …
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Learning novel vowel contrasts: experimental methods in classroom applications
… on perceptual training of tense-lax vowel contrasts in the context of an advanced-level ESL pronunciation class for Chinese and Korean international graduate students. The vowel contrasts were trained under four training paradigms designed to examine the effects of variation due to multiple …
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Exploiting Optical Contrasts for Cervical Precancer Diagnosis via Diffuse Reflectance Spectroscopy
… reflectance data to extract quantitative optical contrasts for cervical cancer screening and diagnosis. </p><p> A scalable Monte Carlo based optical toolbox can be used to extract absorption and scattering contrasts from diffuse reflectance acquired in the cervix in vivo. [Total Hb] was shown to …
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The role of lower airway resonances in defining vowel feature contrasts
… non-linearities and certain distinctive feature contrasts are explored. Third, a speech perception experiment is carried out in which the identification of a vowel (which could be either [+back] or [-back]) is dependent upon the interaction of the second lower airway resonance (represented as a …
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Discrimination of Tone Contrasts in Mandarin Disyllables by Naïve American English Listeners
… participated as well. All 21 possible Mandarin contrasts where the initial syllable varied but the final syllable stayed the same were tested. Acoustic analysis was performed on the stimuli under study. Mandarin subjects scored at ceiling on all contrasts. American English subjects performed …
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Executive Function in Late Childhood and Adolescence: Cultural Contrasts, Correlates, and Consequences
… modelling approach to examine (i) cultural contrasts in, (ii) correlates of, and (iii) consequences of EF in late childhood and adolescence. Both children and parents completed four computerised tests of EF (providing measures of inhibition, cognitive flexibility, working memory, and …
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The role of linguistic contrasts in the auditory feedback control of Speech
… feedback control is sensitive to linguistic contrasts learned through auditory experience.
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Rapid time-resolved brain imaging with multiple clinical contrasts using wave-shuffling
… that produces images of multiple desirable contrasts. Currently, multiple receive channels are used in MRI to exploit redundancy and sample fewer data points for faster acquisition. Wave-CAIPI is a recently introduced technique that modifies the acquisition scheme in a manner that improves …
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THE EFFECTS OF CONTRASTS IN ACCOUNT-LEVEL FRAUD RISK ASSESSMENTS ON AUDITORS' EVIDENCE EVALUATION
Evidence from research in psychology and auditor judgment has shown that perceptions that form early in a sequential judgment process can influence subsequent judgments. Auditing Standard 12 requires auditors to identify fraud risk factors and assess the risk of fraud as part of the process of …
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Constraints on the mother foundresses : contrasts in Anglican and Roman Catholic religious headship in Victorian England
This thesis investigates some of the most important 6 constraints placed upon the mother foundresses of Anglican and Roman Catholic religious communities in Victorian England. It begins by considering how, reestablishing and establishing active, female, religious foundations, these societies …
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Four -Way Stop Contrasts in Hindi: An Acoustic Study of Voicing, Fundamental Frequency and Spectral Tilt
Spectral intensity analysis of contrasting breathy and modal vowels in Gujarati, !Xoo and languages which make use of the breathy and modal phonation type as contrastive features provide a background against which spectral analysis of the breathy/murmured release following VAS can be conducted to …
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The Celt and Shelley : a study of certain contrasts and resemblances between Welsh literature and Shelley's poetry
Now as to what are the ends to be attained; there will be an attempt to compare and contrast the outstanding Shelleyan qualities which have been quite generally accepted with those of the Cymric Celts. But it is quite evident by the very limitation of time and space at our disposal, that the …
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The Effects of Two Methods on Training EFL University Students in Taiwan to Identify Three Non-Native Phonemic Contrasts
… in Taiwan to identify three non-native phonemic contrasts. The study also investigated whether the perceptual training effect could be generalized to new tokens, new talkers, and untrained final stop contrasts as well as whether perceptual training facilitated production. Moreover, to understand …
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Social and learner-specific factors in the acquisition of nativelike phonetic contrasts by study abroad students in Paris, France
This dissertation explores the influence of the social and learner-specific aspects of the study abroad experience on learners’ developing nativelike phonology, overall proficiency, and motivation for second language learning. Its guiding research questions draw on theory and methodologies of both …
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