Volume 6 (2017)

Journal of Science

ISSN 1859-2333

Can Tho University

Can Tho University Journal of Science ISSN 1859-2333Volume 6 (2017)

EDITORIAL BOARD

Editor-in-ChiefHa Thanh Toan

Deputy Editor-in-ChiefNguyen Thanh Phuong

Editorial SecretariatTran Thanh Dien

Secretary of Editorial BoardTran Thanh Be

Members of Editorial Board

Tetsu Ando

Tokyo University of Agriculture and Technology, Japan Fu-Sung Frank Chiang

National Taiwan Ocean University, Taiwan

Kishio Hatai

Nippon Veterinary and Life Science University, Japan Le Van Hoa

Can Tho University, Viet Nam

Atsushi Ishimatsu

Nagasaki University, Japan

Nguyen Ngoc Lam

Institute of Oceanography, VAST, Viet Nam

Juan Boo Liang

Universiti Putra Malaysia, Malaysia

Hoang Ngoc Long

Institute of Physics, VAST, Viet Nam

Nguyen Van Thu

Can Tho University, Viet Nam

Ly Nguyen Binh

Can Tho University, Viet Nam

Nguyen Minh Chon

Can Tho University, Viet Nam

Vo Thanh Danh

Can Tho University, Viet Nam

Nguyen Ngoc Dien

University of Economics and Law, VNU-HCM, Viet Nam Bui Thi Buu Hue

Can Tho University, Viet Nam

Nguyen Chi Ngon

Can Tho University, Viet Nam

Trinh Sam

Ho Chi Minh City University of Pedagogy, Viet Nam Nguyen Hieu Trung

Can Tho University, Viet Nam

Tran Thanh Be

Can Tho Inst. for Socio-Economic Dev. Studies, Viet Nam

Contact addressCan Tho University Journal of Science. 4th Floor, Can Tho University Administration Building. Campus II, 3/2 street, Ninh Kieu district, Can Tho city, Viet Nam. Tel: (84-0710) 3872 157; Fax: (84-0710) 3838 474. Email: tapchidhct@ctu.edu.vn.

Publication licence No: 101/GP.BTTTT dated on April 10, 2015, granted by Ministry of Information and

Communications.

Printed by Can Tho University Publishing House.

Printed and Registered in July 2017; 100 copies.

Can Tho University Journal of Science Vol 6 (2017)

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CONTENT

A Phenomenological study of challenges encountered by mountainous high school students in Vietnam Le Thi Hong Cam, Phuong Hoang Yen ................. 1

Engineering properties of unfired building bricks incorporating various industrial wastes Huynh Trong Phuoc ............................................ 69

Factors influencing group work of students in learning English as a foreign language (EFL): A case study at a Vietnamese University Le Thi Nhan Duyen, Nguyen Buu Huan ................ 9

A navigation and identificationsimulated chemicals using autonomous mobile robot with ceiling camera and onboard micro-spectrometer Luu Trong Hieu, Tran Thanh Hung .................... 74

Factors inhibiting teachers from research engagement: A review Phuong Hoang Yen, Vo Phuong Quyen, Ly Thi Bich Phuong, Luu Bich Ngoc ................... 17

Effects of photoperiods on growth and quality of white leg shrimp (Litopenaeus van-namei) in biofloc system Le Quoc Viet, Truong Van Ngan, Tran Minh Phu, Tran Ngoc Hai ..................................................... 83

Disease-reducing effects of aqueous leaf extracts of annona glabra and wedelia calendulacea on fusarium basal rot of shallot caused by fusarium oxysporum Nguyen Van Vinh, Lam Tan Hao, Nguyen Dac Khoa ............................................... 23

Effect of germination on antioxidant capacity and nutritional quality of soybean seeds (Glycinemax (L.) Merr.) Duong Thi Phuong Lien, Phan Thi Bich Tram, Ha Thanh Toan ................................................... 93

Disease-reducing effects of antagonistic soil bacteria on Fusarium basal rot of shallot caused by Fusarium oxysporum in Vĩnh Châu, Sóc Trăng Tran Viet Quyen, Chau Hoang Trung Tin, Nguyen Dac Khoa ............................................... 31

Optimization of carriers (maltodextrin, arabic gum) for spray-drying of Pouzolzia zeylanica extracts using response surface methodology Nguyen Duy Tan, Nguyen Minh Thuy ............... 102

Effects of nitrogen fertilizer types and alternate wetting and drying irrigation on rice yield and nitrous oxide emission in rice cultivation Vo Thanh Phong, Nguyen Thi Anh Dao, Nguyen My Hoa .................................................. 38

Characterization of lactic acid bacteria isolated from pickled vegetables as potential starters for yogurt preparation Nguyen Minh Thuy, Nguyen Xuan Cuong, Nguyen Van Thanh, Nguyen Thi My Tuyen ....... 111

Metformin - An agent stimulating motility and acrosome reaction in chicken sperm Nguyen Thi Mong Diep ....................................... 47

Improving of bread quality from frozen dough using ascorbic acid and α-amylase Nguyen Thi Thu Thuy, Nguyen Nhat Minh Phuong ............................... 121

Molecular characterization of infectious bronchitis virus (IBV) isolated from commercial chicken farms Tran Ngoc Bich, Nguyen Phuc Khanh, Pham Hoang Dung, Nguyen Thi Cam Loan ....... 56

Effect of controlled atmosphere and storage temperature on the weight loss and cap colour of fresh mushrooms (Agaricus bisporus) Phan Thi Thanh Que, Bert Verlinden, Bart Nicolaï ....................................................... 127

Electrospun CuO/Ag nanofibers for nonenzymatic glucose sensors Doan Van Hong Thien, Ha Thanh Toan, Tran Thi Bich Quyen, Nguyen Minh Tri ............. 63

Molecular dynamics simulation of rutile - anatase heterojunction Ca Nguyen Anh Khoa, Huynh Anh Huy ............ 140

Can Tho University Journal of Science Vol 6 (2017)

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Chemical examination on the ethyl acetate extract of the bark of Oroxylum indicum (L.) Vent Ton Nu Lien Huong, Lam Trieu Minh, Vo Nguyen Giang Tien ...................................... 148

Trends and determinants of compulsory land recovery on households’ income in industrialized and urbanized areas: A case study of My Phuoc town - Ben Cat district - Binh Duong province Thai Thanh Phong, Ha Thuc Vien ..................... 163

Determinants of income diversification and its effects on rural household income in Vietnam Ho Thi Ngoc Diep, Ha Thuc Vien ..................... 153

About the Journal

1. Can Tho University Journal of Science, ISSN 1859-2333 is published according to the publication license No. 101/GP.BTTTT dated on April 10, 2015 of the Ministry of Information and Communications.

2. The Journal publishes original research articles, review articles, short communications and technical articles on all aspects of Natural Sciences, Technology and Environment; Agriculture, Fisheries and Biotechnology; Social Sciences and Humanities; and Education and Political Sciences, Economics and Law. Only article that has not been previously published elsewhere, nor is it before another journal for consideration.

3. Manuscripts should contain up to 5 keywords and an abstract of up to 250 words. Each manuscript should not exceed 16 pages (A4) for research and technical article, 30 pages for a review article and 8 pages for a short communication including figures, charts, diagrams and reference materials, typed in the Times New Roman font with size 11 and double spacing.

4. Manuscripts should be prepared according to the following order: Article title, Author(s), Affil iation(s), Abstract, Keywords, Introduction, Materials and Methods, Theory/Calculation (if any), Results, Discussion, Conclusions, Acknowledgements (if there is), References. Each manuscript must be clearly defined and numbered sections. Subsections should be numbered 1, then 1.1, 1.1.1, a, b; then 1.2; etc. The abstract is not included in section numbering.

5. Citations may be made directly or parenthetically. Reference list should be arranged first alphabetically and then further sorted chronologically if necessary. More than one reference from the same author(s) in the same year must be identified by the letters 'a', 'b', 'c', etc., placed after the year of publication. Please see the detailed instructions to authors at the Journal website: sj.ctu.edu.vn.

6. Online submission: sj.ctu.edu.vn