1. Full name of doctoral candidate: PHATCHARAPHONG PHUBETPEERAWAT
2. Gender: Male
3. Date of birth: August 13, 1987
4. Place of birth: Thailand
5. Decision No. 2859/QD-XHNV dated November 2, 2017, of the Rector of the University of Social Sciences and Humanities, Vietnam National University, Hanoi, recognizing the doctoral student.
6. Changes in the training process: Changes/adjustments to the doctoral dissertation topic according to Decision No. 1568/QD-XHNV dated September 7, 2020, of the Rector of the University of Social Sciences and Humanities, Vietnam National University, Hanoi.
7. Thesis title: The Vietnamese phonetic system of Vietnamese expatriates in Mukdahan province, Thailand.
8. Major: Comparative and Contrastive Linguistics 9. Code: 62 22 02 41
10. Scientific supervisors: 1. Prof. Dr. Vu Duc Nghieu
2. Dr. Nguyen Ngoc Binh
11. Summary of the new findings of the thesis:
The study "The Vietnamese Phonetic System of Vietnamese Overseas Residents in Mukdahan, Thailand" is a fundamental research aimed at answering the question: how does the Vietnamese phonetic system exist here? (its current state), what similarities and differences does it have compared to Vietnamese in Vietnam, especially compared to the original dialect (in their homeland) of this community.
1. The Vietnamese initial consonant system of Vietnamese expatriates in Mukdahan, Thailand, has a total of 22 initial consonants, including: /ɓ, th, t, ɗ, ʈ, c, k, Ɂ, m, n, ɲ, ŋ, f, β, s, ʂ, j, χ, ɣ, h, l, r/. Based on a comparison of the Vietnamese initial consonant system in Mukdahan with the Chinese dialect, 20 initial consonants share similarities: /ɓ, m, th, t, ɗ, n, ʈ, c, ɲ, k, ŋ, Ɂ, f, s, ʂ, l, j, χ, ɣ, h/. Five initial consonants show differences: /β, v, z, ʐ, r, j/. In Mukdahan, the Vietnamese language does not contain the consonants /v, z, ʐ/, and the Central dialect does not contain the consonants /β, r/. Based on a comparison of the initial consonant system of Vietnamese in Mukdahan with the Northern dialect, 17 initial consonants share similar characteristics: /ɓ, m, th, t, ɗ, n, c, ɲ, k, ŋ, Ɂ, f, s, l, χ, ɣ, h/. Seven initial consonants have different characteristics: /β, v, z, r, ʈ, ʂ, j/. In Mukdahan, the Vietnamese language does not contain the consonants /v, z/, and the Northern dialect does not contain the consonants /β, r, ʈ, ʂ, j/.
2. The rhyming system in Vietnamese spoken by Vietnamese expatriates in Mukdahan, Thailand, consists of three components: the initial consonant, the vowel, and the final consonant. When the vowel and final consonant combine to form a rhyme, it can be divided into four types: 1) Open rhymes are rhymes ending in a vowel, with 12 rhymes. 2) Semi-open rhymes are rhymes ending in the final consonants /-w, -j/, with 19 rhymes. 3) Semi-close rhymes are rhymes ending in the final consonants /-m, n, -ŋ/, with 40 rhymes. 4) Closed rhymes are rhymes ending in the final consonants /-p, -t, -k/, with 40 rhymes. Compared to the Central dialect, Vietnamese in Mukdahan does not have archaic vowels [iŋ, eŋ, ɛŋ, uŋ, o:ŋ, ͻ:ŋ, ik, ek, ɛk, uk, ok, ͻk] and labialized vowels [uŋm, oŋm, ͻ̆ŋm, ukp, okp, ͻ̆kp]. Other vowels show more similarities than differences. Compared to the Northern dialect, Vietnamese in Mukdahan does not have labialized vowels [uŋm, oŋm, ͻ̆ŋm, ukp, okp, ͻ̆kp]. In Mukdahan, the final consonant /-ŋ/ changes to /-n/, as shown in the following pairs of palatal variations: [iŋnh-in], [eŋnh-en], [ɛ̆ŋnh-ɯn], [ikch-it], [ekch-et], [ɛ̆kch-ɛ̆t].
3. The Vietnamese tonal system of Vietnamese expatriates in Mukdahan, Thailand has 5 tones: 1) Level tone with an upward stroke, high pitch, normal voice quality, recorded as [34]. 2) Falling tone with a downward stroke, low pitch, low voice quality, recorded as [32]. 3) Tilde tone with a downward-upward stroke, high pitch, tone-stuck voice quality, recorded as [325]. 4) Rising tone with an upward stroke, high pitch, normal voice quality, recorded as [25]. 5) Heavy tone with a downward stroke, low pitch, recorded as [31].
12. Practical applications:
The results of this thesis can provide information on changes in the phonetics of Vietnamese spoken by Vietnamese expatriates in Mukdahan, thereby predicting future trends, providing additional information for teaching and learning Vietnamese locally, and contributing to the preservation and protection of the Vietnamese language and culture within the Vietnamese community in Mukdahan in particular, and in Thailand in general.
13. Future research directions: None
14. Published works related to the dissertation:
1. Phatcharaphong Phubetpeerawat (2019), “The of beginning consonants in Vietnamese of the Viet Kieu in Mukdahan, Thailand”, Proceedings of the Fifth International Conference on Linguistics and Language Studies, ICLLS 2019, Hong Kong, pp.63-68.
2. Phatcharaphong Phubetpeerawat (2019), “The Phonological variation of Initial consonants in Vietnamese language of Thais-Vietnamese (Viet Kieu) in Mukdahan province”, Graduated Development Journal, Ubon Ratchathani Rajabhat University Vol.6 (2), pp.41-55.
3. Phatcharaphong Phubetpeerawat (2020), “Vietnamese tones system of the Viet kieu in Mukdahan, Thailand”, RBRU Journal of Humanities and Social Sciences Vol. 1 (2), pp.48-65
INFORMATION ON DOCTORAL THESIS
1. Full name: Phatcharaphong Phubetpeerawat 2. Gender: Male
3. Date of birth: August 13, 1987 4. Place of birth: Thailand
5. Admission decision number: 2859/QD-XHNV, on November 2, 2017 by the Rector of USSH, VNU
6. Changes in academic process: Changes in the thesis title according to 1568/QD-XHNV, on September 7, 2020 by the Rector of USSH, VNU.
7. Official thesis title: The Vietnamese phonetic system of the Viet kieu in Mukdahan province, Thailand.
8. Major: Comparative - contrastive linguistics 9. Code: 62 22 02 41
10. Supervisors: 1. Prof. Dr. Vu Duc Nghieu
2. Dr. Nguyen Ngoc Binh
11. Summary of the new findings of the thesis:
The research study entitled Vietnamese phonetic system of overseas Vietnamese in Mukdahan, Thailand was fundamentally aimed to answer the question regarding how the Vietnamese phonetic system exists there (in the current circumstances). Moreover, it explores the similarities and differences of Vietnamese in Vietnam and its counterpart, especially when compared with the original dialect (in the native country) of this population.
1. The initial consonant system of Vietnamese of the Viet Kieu in Mukdahan, Thailand has all 22 initial consonants consisting of: /ɓ, th, t, ɗ, ʈ, c, k, Ɂ, m, n, ɲ, ŋ, f, β, s, ʂ, j, χ, ɣ, h, l, r/. The comparison results show 20 initial consonants have similarities, including: /ɓ, m, th, t, ɗ, n, ʈ, c, ɲ, k, ŋ, Ɂ, f, s, ʂ, l, j, χ, ɣ, h/. 5 initial consonants have differences, including: /β, v, z, ʐ, r, j/. Vietnamese in Mukdahan does not have the consonants /v, z, ʐ/ while the Central Vietnamese dialect does not have the consonants /β, r/. Based on the comparison results between the initial consonant system of Vietnamese in Mukdahan and the Northern Vietnamese dialect, there are 17 initial consonants with similarities: /ɓ, m, th, t, ɗ, n, c, ɲ, k, ŋ, Ɂ, f, s, l, χ, ɣ, h/. 7 initial consonants have differences, including: /β, v, z, r, ʈ, ʂ, j/. Vietnamese in Mukdahan does not have the consonants /v, z/ while the Northern Vietnamese dialect does not have the consonants /β, r, ʈ, ʂ, j/.
2. The syllable system in Vietnamese of the Viet Kieu in Mukdahan, Thailand includes three components: schwa sound, main sound (vowel) and ending sound. When vowel and ending sound combined into syllable, it can be divided into four types of syllable: 1) Open syllables are the syllables that end with a vowel, there are 12 open syllables. 2) Half-open syllables are the syllables that end with ending sounds /-w, -j/, there are 19 half-open syllables. 3) Half-closed syllables are the syllables that end with ending sounds /-m, n, -ŋ/, there are 40 half-closed syllables. 4) Closed syllables are the syllables that end with ending sounds /-p, -t, -k/, there are 40 closed syllables. Compared with the Central Vietnamese dialect, Vietnamese in Mukdahan does not have ancient syllables [iŋ, eŋ, ɛŋ, uŋ, o:ŋ, ͻ:ŋ, ik, ek, ɛk, uk, ok, ͻk] and labialization syllables [uŋm, oŋm, ͻ̆ŋm, ukp, okp, ͻ̆kp]. Meanwhile, other syllables have more similarities than differences. Compared with the Northern Vietnamese dialect, Vietnamese in Mukdahan does not have labialization syllables [uŋm, oŋm, ͻ̆ŋm, ukp, okp, ͻ̆kp]. For palatalization syllables in Mukdahan, the ending consonant /-ŋ/ turns into the ending consonant /-n/ as shown through the pairs of palatalization variants, including: [iŋnh-in], [eŋnh-en], [ɛ̆ŋnh- ɯn], [ikch-it], [ekch-et], [ɛ̆kch-ɛ̆t].
3. Vietnamese tone system of the Viet Kieu in Mukdahan, Thailand has 5 tones: 1) “Thanh bar” has a going-up contour, high pitch, normal voice quality, and is recorded [34]. 2) “Thanh Huyen” has a going-down contour, low pitch, slack voice quality, and is recorded [32]. 3) “Thanh Tà” has a going-down-then-up contour, high pitch, creaky voice, and is recorded [325]. 4) “Voice” has a going-up contour, high pitch, normal voice quality, and is recorded [25]. 5) “Heavy bar” has a going-down contour, low pitch, and is recorded [31].
12. Practical applicability, if any:
The results of the thesis can provide information on the changes in Vietnamese phonetics used by overseas Vietnamese in Mukdahan. Hence, the thesis can also predict changing trends, provide more information for teaching and learning Vietnamese locally, and contribute to maintaining and protecting the Vietnamese language and culture in the Vietnamese community in Mukdahan in particular and in Thailand in general.
13. Further research direction, if any: No
14. Thesis-related publications:
1. Phatcharaphong Phubetpeerawat (2019), “The of beginning consonants in Vietnamese of the Viet Kieu in Mukdahan, Thailand”, Proceedings of the Fifth International Conference on Linguistics and Language Studies, ICLLS 2019, Hong Kong, pp.63-68.
2. Phatcharaphong Phubetpeerawat (2019), “The Phonological variation of Initial consonants in Vietnamese language of Thais-Vietnamese (Viet Kieu) in Mukdahan province”, Graduated Development Journal, Ubon Ratchathani Rajabhat University Vol.6 (2), pp.41-55.
3. Phatcharaphong Phubetpeerawat (2020), “Vietnamese tones system of the Viet kieu in Mukdahan, Thailand”, RBRU Journal of Humanities and Social Sciences Vol. 1 (2), pp.48-65
