Effect of Smoking on Taste Thresholds for Phenyl-Thio-Carbamide (PTC)

Taste sensitivity in pregnancy.

Taste sensitivity to Phenyl-thio-Carbamide (PTC) and glucose were studied in 150 females during the 3 trimesters of their pregnancy periods. The taste sensitivity to PTC was determined by Harris and Kalmus method. For taste intensity and hedonic evaluation, 7 concentrations of glucose solutions were used. Taste sensitivity to both PTC and glucose increases during the 1st trimester of pregnancy....

Identification of Human Polymorphisms in the Phenylthio- carbamide (PTC) Bitter Taste Receptor Gene and Protein

This paper introduces a lab project developed for the Summer Teachers’ Workshop in Genomics at Amherst College, and is easily tailored to the weekly format of undergraduate laboratory courses in genetics, genomics, molecular biology, or evolution. The project examines single nucleotide polymorphisms associated with human taste sensitivity to the bitter compound phenylthiocarbamide (PTC). Human ...

Genetics of Sensory Thresholds: Variations within Single Individuals in Taste Sensitivity for PTC.

The relationship between PTC taster status and taste thresholds in young adults.

OBJECTIVE The aim of this study was to compare taste detection and recognition thresholds of young males and females, and young phenylthiocarbamide (PTC) "tasters" and "nontasters" for stimuli representing sweet, sour, bitter, salty, and umami classes of taste sensations. STUDY DESIGN Thirty-eight men and 37 women (mean [SD] age = 24.5 [2.5] years) were classified as PTC tasters and nontaster...

effect of oral presentation on development of l2 learners grammar

this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...