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Individual differences in taste perception and bitterness masking

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The unpleasant bitter taste found in many nutritious vegetables may deter people from consuming a healthy diet. We investigated individual differences in taste perception and whether these differences influence the effectiveness of bitterness masking. To test whether phenylthiocarbamide (PTC) `supertasters' also taste salt and sugar with greater intensity, as suggested…

The unpleasant bitter taste found in many nutritious vegetables may deter people from consuming a healthy diet. We investigated individual differences in taste perception and whether these differences influence the effectiveness of bitterness masking. To test whether phenylthiocarbamide (PTC) `supertasters' also taste salt and sugar with greater intensity, as suggested by Bartoshuk and colleagues (2004), we infused strips of paper with salt water or sugar water. The bitterness rating of the PTC strip had a significant positive linear relationship with ratings of both the intensity of sweet and salt, but the effect sizes were very low, suggesting that the PTC strip does not give a complete picture of tasting ability. Next we investigated whether various seasonings could mask the bitter taste of vegetables and whether this varied with tasting ability. We found that sugar decreased bitterness and lemon decreased liking for vegetables of varying degrees of bitterness. The results did not differ by ability to taste any of the flavors. Therefore, even though there are remarkable individual differences in taste perception, sugar can be used to improve the initial palatability of vegetables and increase their acceptance and consumption.
ContributorsWilkie, Lynn Melissa (Author) / Phillips, Elizabeth D. (Thesis advisor) / Cohen, Adam (Committee member) / Johnston, Carol (Committee member) / Arizona State University (Publisher)
Created2012
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Anti-semitism and Israel affiliation in the American Jewish community: an analysis of American Jewish identity

Description
Relevant literature was analyzed alongside interview data from participants concerning issues of anti-Semitism, Israel affiliation, and Jewish identity. Qualitative coding and theme identification were used to determine possible relationships among the variables, with special attention to the role anti-Semitism plays in influencing Israel affiliation. Semi-structured interviews were conducted with 9…

Relevant literature was analyzed alongside interview data from participants concerning issues of anti-Semitism, Israel affiliation, and Jewish identity. Qualitative coding and theme identification were used to determine possible relationships among the variables, with special attention to the role anti-Semitism plays in influencing Israel affiliation. Semi-structured interviews were conducted with 9 young American Jews (18-24) currently enrolled as undergraduate students in universities. The results revealed that continuity of the Jewish people is a core value for many American Jews. Anti-Semitism is often under reported by young American Jews, but for some anti-Israel sentiments are conflated with anti-Semitism. It was also observed that knowledge of anti-Semitism plays an integral role in shaping Jewish identity. Finally, it was found that Israel affiliation polarizes the Jewish community, often resulting in the exclusion of left-leaning Jews from the mainstream Jewish community. These results were analyzed within racial, social, and political frameworks.
ContributorsHobbs, Emma Caroline (Author) / Adelman, Madelaine (Thesis advisor) / Shabazz, Rashad (Committee member) / Cohen, Adam (Committee member) / Langille, Timothy (Committee member) / Arizona State University (Publisher)
Created2018
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Signs, signs, everywhere a sign: an annotated translation and study of the Scripture on the cycles of heaven and earth

Description
Sacred apocalyptic texts claim to foretell coming events, warning the faithful of some terrible fate that lies beyond the present. Such texts often derive their power from successfully recasting past events in such a way as they appear to be "predicted" by the text and thus take on additional meanings…

Sacred apocalyptic texts claim to foretell coming events, warning the faithful of some terrible fate that lies beyond the present. Such texts often derive their power from successfully recasting past events in such a way as they appear to be "predicted" by the text and thus take on additional meanings beyond the superficial. This ex eventu status allows apocalyptic texts to increase the credibility of their future predictions and connect emotionally with the reader by playing on present fears. The fifth-century Daoist apocalyptic text, the Scripture on the Cycles of Heaven and Earth (Tiandi yundu jing, 天地運度經), is no exception. This thesis examines the apocalyptic markers in the poetic sections of the text, attempting to develop a strategy for separating the generic imagery (both to Chinese texts and the apocalyptic literary genre as a whole) from the more significant recoverable references to contemporary events such as the fall of the Jin dynasty and the subsequent founding of the Liu-Song dynasty.
ContributorsBussio, Jennifer Jean (Author) / Bokenkamp, Stephen (Thesis advisor) / Chen, Huaiyu (Committee member) / Cutter, Robert J (Committee member) / Arizona State University (Publisher)
Created2011