The aim of this study is to analyze errors made in the perception and production of English liquids by Korean college students. For this study, perception and production experiments were conducted with 27 Korean college students(14 males and 13 females). The experiment stimuli tested were /l/ and /r/, occurring in various positions: onset, onset cluster, word-medial, coda, and coda cluster. The results of this study are as follows. First, as a result of the perception experiments, the subjects showed a higher error rate in /r/ than in /l/. Second, in the production experiments, it was found that more errors were made in /l/ than in /r/, contrary to the perception experiment, due to the difficulty of pronouncing the dark [ɫ]. Third, in both the perception and production experiments, the error rate of the coda position was significantly higher and that of the onset cluster was the lowest. In addition, the results of this study proved the general trend seen in second language acquisition. First, in the perception and production of /l/ and /r/ in English, both negative and positive transfer of mother tongue appear. Second, there is a proportional correlation between perception and production in second language acquisition.
Background: The purpose of this study is to evaluate the role of viability on PET-MRI to predict improvement of echocardiographic findings such as regional wall motion index and left ventricular ejection fraction after successful percutaneous coronary intervention (PCI) for patients with acute myocardial infarction (AMI). Method: A total of 154 patients with AMI who was performed cardiac PET/MRI within 7 days after PCI were enrolled were enrolled. We performed TTE twice before and after in We performed TTE twice before and after PCI in 103 patients. We categorized these patients according to presence of viability on PET-MRI: group A (N=53, patients with viability on PET-MRI) and group B (N=50, patients without viability on PET-MRI) and compared. The primary end point is improvement of regional wall motion abnormality (RWMA) on TTE. Results: Clinical and angiographic findings were similar between the two groups during follow-up of 11months. Among 53 patients in group A, 30 patients (56.6%) showed the result of slight improvement of RWMA on TTE and among them 13 patients (24.5%) showed result of disappeared RWMA on TTE. In contrast, among 50 patients in group B, 22 patients (44%) showed the result of slight improvement and among them, only 4 patients (8%) showed result of disappeared RWMA on TTE. The proportion of patients who showed slight improvement of RWMA between two groups are not statistically significant (p=0.201). But, the proportion of patients who showed disappeared RWMA between two groups are statistically significant (p=0.024). Conclusions: PET/MRI is useful tool to detect viability in patients with AMI. It seems to be predictable to improve cardiac function for the patients with viability on PET-MRI.
The purpose of this study is to analyze the correlation between the pulse energy and hot flush in women who complain of climacteric syndrome. Methods: We analyzed the values of pulse energy on 78 of perimenopausal and postmenopausal women. The symptoms of patients were assessed by Kupperman's index (KI) and Menopause Rating Scale (MRS). Statistical analysis was performed by Spearman correlation coefficient and student T-test, using SPSS 18.0 for window program.Results: The results were as follows.1. There were no statistically significant relation between pulse energy of left Cheok subtracted from left Chon and KI, MRS hot flush score.2. When divided depending on MRS hot flush score, There were no statistically significant differences on pulse energy. Conclusions:The results suggest that there is no correlation between hot flush score and pulse energy.
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