876 resultados para Taste cohomology


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This book is a study of the British Board of Film Censors in the 1970s. In permitting and refusing specific material to be shown on cinema screens the BBFC were dictating patterns of taste and helping shape and determine notions of acceptability. Contentious and controversial texts like A Clockwork Orange (1971), Straw Dogs (1971) The Devils (1971) and Life of Brian (1979) have been used to draw attention to the way in which the BBFC operated in the 1970s. While it is true to say that these films encountered major censorship problems, what of the hundreds of other films which were being classified at the same time? Did all films struggle with the British censors in this period, and can these famous examples be fitted into broader patterns of censorship policy and practice?

In studying over 250 film files from the BBFC archive, this work reveals how 1970s films such as Vampire Circus (1971), Confessions of a Window Cleaner (1974) and Carry on Emmannuelle (1978) also ran in to trouble with the film censor. This work explores the complex process of negotiation and compromise which affected all film submissions in the 1970s and the way in which the BBFC actively, and often sympathetically, negotiated with film directors, producers and distributors to assign the correct category to each film. The lack of any defined formal censorship policy in this period allowed the BBFC to work alongside the film industry and push cultural, social and artistic boundaries; however it also left the Board open to accusations of favouritism, subjectivity and personal bias.

This work is not simply a study of controversial films and contentious issues, but rather engages with wider issues of changing permission, legal struggles, the influence of the media and the legislative and governmental controls which both helped and hindered the BBFC in this important post-war decade. The approach used within this work focuses on historical and archival research, making it importantly inter-textual and offering a great deal to scholars from a number of associated disciplines, including history, social policy, media and communications and politics.

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There has long been substantial interest in understanding consumer food choices, where a key complexity in this context is the potentially large amount of heterogeneity in tastes across individual consumers, as well as the role of underlying attitudes towards food and cooking. The present paper underlines that both tastes and attitudes are unobserved, and makes the case for a latent variable treatment of these components. Using empirical data collected in Northern Ireland as part of a wider study to elicit intra-household trade-offs between home-cooked meal options, we show how these latent sensitivities and attitudes drive both the choice behaviour as well as the answers to supplementary questions. We find significant heterogeneity across respondents in these underlying factors and show how incorporating them in our models leads to important insights into preferences. 

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With the growing interest in the topic of attribute non-attendance, there is now widespread use of latent class (LC) structures aimed at capturing such behaviour, across a number of different fields. Specifically, these studies rely on a confirmatory LC model, using two separate values for each coefficient, one of which is fixed to zero while the other is estimated, and then use the obtained class probabilities as an indication of the degree of attribute non-attendance. In the present paper, we argue that this approach is in fact misguided, and that the results are likely to be affected by confounding with regular taste heterogeneity. We contrast the confirmatory model with an exploratory LC structure in which the values in both classes are estimated. We also put forward a combined latent class mixed logit model (LC-MMNL) which allows jointly for attribute non-attendance and for continuous taste heterogeneity. Across three separate case studies, the exploratory LC model clearly rejects the confirmatory LC approach and suggests that rates of non-attendance may be much lower than what is suggested by the standard model, or even zero. The combined LC-MMNL model similarly produces significant improvements in model fit, along with substantial reductions in the implied rate of attribute non-attendance, in some cases even eliminating the phenomena across the sample population. Our results thus call for a reappraisal of the large body of recent work that has implied high rates of attribute non-attendance for some attributes. Finally, we also highlight a number of general issues with attribute non-attendance, in particular relating to the computation of willingness to pay measures.

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Loathed by critics, the British sexploitation comedy Confessions of a Window Cleaner (1974) was dismissed as tawdry and vulgar yet its massive popular appeal makes it an important indicator of popular taste in the much-maligned 1970s. Using new archival material, this article examines what the film offered and how it was deliberately crafted in order to appeal to a variety of audiences.

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The Earl of Cranbrook (V) (then Lord Medway) was fi rst introduced to archaeological research in 1958 when he participated in excavations at the Niah Caves, Sarawak Borneo. In that same year he published a paper entitled ‘Food bone in Niah Cave excavations (-1958)’ in the Sarawak Museum Journal. Unbeknownst to him at the time, his individual and intuitive research was on a par with, if not methodologically ahead of, burgeoning studies in the fi eld of zooarchaeology that were taking place at leading academic institutions in Europe and the United States. This paper recounts and lauds the signifi cant contributions the Earl of Cranbrook has made to the establishment and furtherance of a discipline over more than 50 years. 

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Cinemagoing data from the 1970s. A case study of the data from the Southampton Odeon

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Research is closely intertwined in teaching and learning psychology as a science-based discipline and various methods are used to enable psychology students to grasp the nature of psychological research. VRA (Vacation Research Assistantship) schemes give students the unique opportunity to ‘taste’ what research is truly about, and develop important skills and knowledge in the process and ‘test’ their interest in a research career. VRAs provide a research-based teaching providing an experiential approach to learning, where both the student and educator are engaged as partners in the research process, reducing the role division between student and educator. This paper reflects on a VRA process and outcomes in respect of student learning and experience using as framework the teaching –research nexus (Griffiths, 2004). Both student’s and educator’s reflections are discussed as well as directions for future developments and research.

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Salt taste in mammals can trigger two divergent behavioural responses. In general, concentrated saline solutions elicit robust behavioural aversion, whereas low concentrations of NaCl are typically attractive, particularly after sodium depletion. Notably, the attractive salt pathway is selectively responsive to sodium and inhibited by amiloride, whereas the aversive one functions as a non-selective detector for a wide range of salts. Because amiloride is a potent inhibitor of the epithelial sodium channel (ENaC), ENaC has been proposed to function as a component of the salt-taste-receptor system. Previously, we showed that four of the five basic taste qualities-sweet, sour, bitter and umami-are mediated by separate taste-receptor cells (TRCs) each tuned to a single taste modality, and wired to elicit stereotypical behavioural responses. Here we show that sodium sensing is also mediated by a dedicated population of TRCs. These taste cells express the epithelial sodium channel ENaC, and mediate behavioural attraction to NaCl. We genetically engineered mice lacking ENaCalpha in TRCs, and produced animals exhibiting a complete loss of salt attraction and sodium taste responses. Together, these studies substantiate independent cellular substrates for all five basic taste qualities, and validate the essential role of ENaC for sodium taste in mice.

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The relative ease tha t a person experiences while performing cognitive operations, namely processing fluency, affects a broad range of judgments such as product evaluations. For example, an increase in fluency through repeated exposure to product packages enhances attitude toward the brand (Janiszewski 1993). This thesis examined the effect of fluency on taste perception and demonstrated where the fluency created an advantage or disfluency created a disadvantage for taste evaluations. Experiment 1 examined the effect of perceptual fluency on taste perception. It was found that perceptual disfluency derived from r eading the labels (i.e., font) lowered taste evaluations only when it was experienced be for the sensory experience. Experiment 2 examined the effect of linguistic fluency (i.e., pronunciation) on taste perception. However there was no evidence for the effect of linguistic fluency on taste perception. Thus, it is concluded that either the effect size of linguistic fluency is lower than perceptual fluency, or participants discounted their linguistic fluency experience because they realized that the brand names used in Experiment 2 were not real brand names. To sum up, it was found that perceptual disfluency created by presenting a difficult to read product-related information created a disadvantage for taste perception compared to when no information was presented. Therefore, this thesis provides the first evidence for the effect of the metacognitive cue of fluency on sensory evaluations.

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There are many known taste receptors specific to each taste attribute. This thesis examines the relationship between single nucleotide polymorphisms (SNPs) and copy number variations (CNVs) in known taste and taste pathway receptors TAS2R38, Gustin, and TRPM5 and for PROP (6-n-propylthiouracil) taster status (PTS), thermal taster status (TTS), and orosensory sensation intensity ratings. PTS is a proxy for general taste responsiveness, and the ability to taste PROP classifies individuals into three phenotypes: super (PST), medium (PMT), and non-tasters (PNT). Another taste phenotype, also serving as a proxy for general taste responsiveness, is TTS, classifying individuals as thermal tasters (TTs) or thermal non-tasters (TnTs). DNA extractions from buccal cells obtained from 60 individuals were performed and analysis of TAS2R38, Gustin, and TRPM5 variations were conducted through Polymerase Chain Reaction (PCR), sequencing for SNPs, and upQMPSF for CNV analysis of TRPM5. Among the SNPs and CNVs studied, only TAS2R38 was found to be significantly associated with PTS and intensity ratings for sweet, bitter, and sour taste as well as astringency. However, not all PROP phenotypic differences can be explained by the variations at these three SNP sites in TAS2R38, suggesting the involvement of additional genes. No association was found between TTS and TAS2R38 or Gustin, confirming that PTS and TTS are not genetically associated. The examined TRPM5 SNPs and CNVs did not correlate with TTS. Therefore, further research is necessary into other factors contributing to PTS and TTS.

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The effect of dietary sodium restriction on perceived intensity of and preference for the taste of salt was evaluated in 76 adults, 25-49 years, with diastolic blood pressure between 79-90 mmHg. Participants were volunteers from clinical Hypertension Prevention Trials (HPT), at the University of California, Davis and the University of Minnesota, Minneapolis. Participants followed one of four HPT diets: 1600 mg Na+/day (NA, n=lS), 1600 mg Na+ plus 3200 mg K+/day (NK, n=lS), 1600 mg Na+/day plus energy restriction to achieve weight loss (NW, n=l3) and weight loss only (WT, n=l3). All participants attended regularly scheduled nutri­tion intervention meetings designed to help them achieve the HPT dietary goals. A fifth, no-intervention group, consisted of 20, no-diet-change controls CCN). Sodium, potassium and energy intakes were monitored by analysis of single, 24-hour food records and corresponding overnight urine speci­mens, obtained at baseline and after 12 and 24 weeks of intervention. Hedonic responses to sodium chloride in a prepared cream of green bean soup were assessed by two methods : 1) scaling of like/dislike for an NaCl concentration series on 10-cm graphie line scales and 2) ad libitum mixing of unsalted and salted soups to maximum level of liking. Salt content of the mixes was analyzed by sodium ion-selective electrode. The concentration series was also rated for perceived saltiness­intensity on similar graphie line scales. Tests were conducted at base­line and after approximately 1, 3, 6, 8, 10, 13 and 24 weeks of intervention. Reduction in sodium intake and excretion in NA, NK and NW partici­pants was accompanied by a shift in preference toward less saltiness in soup. The pattern of hedonic responses changed over time: scores for high NaCl concentrations decreased progressively while scores for low concentrations increased. Hedonic maxima shifted fran a concentration of 0.55% at the onset to 0.1-0.2% added NaCl at week 24. During the same time period, the preferred concentration of ad libitum mixes declined 50%. These shifts occurred independently of changes in salti­ness intensity ratings, potassium or energy intakes, and were consistent across the two participating study sites. Like/dislike and sd. libitum responses were similar after 13 and 24 weeks of diet, as were measures of sodium intake and excretion. These findings suggest that after three months of sodium restriction, preference for salt had readjusted to a lower level, reflective of lower sodium intake. Mechanisms underlying the change in preference are unclear, but may include sensory, context, physiological as well as behavioral effects. In contrast, few changes were noted within WT and CN groups. The pattern of hedonic responses varied little in controls while the WT group showed increased liking for mid-range NaCl concentrations. Small, but significant fluctuations in ad libitum mix concentration occurred in both of these groups, but the differences appeared to be random rather than systematic. The results of this study indicate that preference for the taste of salt declines progressively toward a new baseline following reductions in sodium intake. These alterations may enhance maintenance of low­sodium diets for the treatment and prevention of hypertension. Further investigation is needed to establish the degree to which long-term com­pliance is contingent upon variation in salt taste preference.