This study investigates the concept of responsibilities among 5 th grade students from ethnic minority groups in Viet Nam. A sample group of 300 5 th grade students from ethnic minority groups was selected by convenience sampling together with 300 peers from the ethnic majority group. All of them were asked to complete a questionnaire designed for the purposes of the study. The finding shows that the concept of responsibilities among 5 th grade students from ethnic minority groups initially reaches the basic responsibilities which are society requirements for children. However, it still weaker than that of peer partners from the ethnic majority group. The difference is statistically significant. Results also indicate that there is equal concept of the responsibilities of 5 th grade students from ethnic minority groups in three dimensions: "Good children in the family", "Good students in school" and "Uncle Ho's good children" ("Good children in society"). The correlations between them are moderate average but have statistically significant.

Current manufacturing techniques could produce natural rubber closures that meet all criteria standardized by pharmacopeias except the ultraviolet absorbance limit in the range of 220–360 nm for the closures’ leachate. The type and the dosage of the rubber compounds’ ingredients affected the ultraviolet absorbance of the leachate, while rinsing the closures in water with ultrasonic waves and ozone did not. Intensive washing of the rubber coagulum and deproteinization of the rubber latex using bromelain reduced ultraviolet absorbance of the leachate significantly. Further purification of natural rubber latex is necessary to enable the use of natural rubber in pharmaceutical closures.

Article refers to behavioral patterns of tobacco addiction of students at some universities in Ho Chi Minh City, Vietnam. The study results showed that 76.85% of students have non-smoking and 20.0% of students currently smoke. For 20% above, there is 27.6% of the students have mild addiction, 26.7% of students have moderate addiction and 22.9% of students have trend addiction. This really is a concerning figure for tobacco addiction behavior in particular and cultural life of Vietnam in general.

Bài viết đề cập đến biểu hiện tổn thương tâm lý (TTTL) của trẻ em trong gia đình không toàn vẹn (GĐKTV) qua xúc cảm và tình cảm của trẻ với gia đình và cuộc sống xã hội. Biểu hiện TTTL qua xúc cảm và tình cảm của ba nhóm trẻ “không có TTTL”, “trẻ ở mức ranh giới” và “trẻ TTTL trong GĐKTV” có sự chênh lệch. Trẻ TTTL trong GĐKTV có xúc cảm, tình cảm tiêu cực với gia đình và cuộc sống xã hội nhiều hơn so với hai nhóm còn lại. Số liệu còn cho thấy biểu hiện về xúc cảm và tình cảm của trẻ với gia đình và cuộc sống xã hội có sự khác biệt về cấp học (Sig. = 0.005).

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