THE RELATIONSHIP BETWEEN BILINGUALISM AND EMOTION PERCEIVED BY VIETNAMESE COLLEGE STUDENTS

Studies of the correlation between language and emotion have demonstrated the existence of a causal relationship between switching languages and feeling different in bi-/ multilinguals. Adopting the mixed-method approach, the current research aims to extend this line of enquiry to Vietnam – a monolingual country – by investigating 160 Vietnamese-English speaking students at International University (IU) (VNU-HCMC). They were required to complete a questionnaire based on the Bilingualism and Emotion Questionnaire (Dewaele & Pavlenko, 2001–2003). It includes closed questions concerning shifts on five scales of feelings and an open explanatory question on the difference perceived. The scales, chosen with reference to the research of Dewaele and Nakano (2012), consist of feeling logical, serious, emotional, fake, and different. Statistical analyses revealed a regular shift on most scales, with most participants feeling more logical, more serious, more fake, more different, and less emotional when using the L2. Simple linear regression revealed that the variation in certain feelings scales was mostly predicted by self-perceived proficiency in the L

粒子配向性と主応力比を考慮した土の力学異方性の評価

国立大学法人長岡技術科学大

Sequence-dependent histone variant positioning signatures

Background: Nucleosome, the fundamental unit of chromatin, is formed by wrapping nearly 147bp of DNA around an octamer of histone proteins. This histone core has many variants that are different from each other by their biochemical compositions as well as biological functions. Although the deposition of histone variants onto chromatin has been implicated in many important biological processes, such as transcription and replication, themechanisms of how they are deposited on target sites are still obscure. Results: By analyzing genomic sequences of nucleosomes bearing different histone variants from human, including H2A.Z, H3.3 and both (H3.3/H2A.Z, so-called double variant histones), we found that genomic sequencecontributes in part to determining target sites for different histone variants. Moreover, dinucleotides CA/TG are remarkably important in distinguishing target sites of H2A.Z-only nucleosomes with those of H3.3-containing (both H3.3-only and double variant) nucleosomes. Conclusions: There exists a DNA-related mechanism regulating the deposition of different histone variants onto chromatin and biological outcomes thereof. This provides additional insights into epigenetic regulatory mechanisms of many important cellular processes

DOES DEMOGRAPHICS MATTER IN LIFELONG LEARNING? A RESEARCH CONTEXT OF VIETNAM

Objective: Lifelong learning (LLL) has lately attracted significant attention from the society in general, universities and corporations in particular. For the case of Vietnam, the Government has pledged to create a Lifelong Learning Society. A number of initiatives have been launched to help achieve this goal, including the Southeast Asian Ministers of Education Organization Centre for Lifelong Learning (SEAMEO CELLL) and "Book Day", a day dedicated to encouraging reading and raising awareness of its importance in the development of knowledge and skills. Lifelong learning (LLL) programs are also being adopted at libraries, museums, cultural centers, and clubs in Vietnam. In addition to the effort done by the Vietnamese government, a number of non-governmental, non-profit organizations and educational institutions have started to take action to encourage literacy and lifelong learning. It can be said that education and educational reforms are always the top concern of each country. This study is to investigate about lifelong learning of community with 4 aspects: (1) Learning Competencies; (2) Learning Contexts; (3) Learning Contents and (4) Learning Goals as well as examining the differences in the opinion about lifelong learning between categorical variables. The second purpose of the study is to examine the relationship between an individual's perspective on lifelong learning and their actual learning capacity, as well as learning motive. Methods: The paper deploys primary data collecting from 270 people in different sectors and different occupations. Standard statistical techniques such as mean analysis, OLS multivariable analysis are used to find the answer for proposed hypotheses. Results: Using a sample of 270 respondents varying in age, gender, and employment status, the authors found that there are differences on the attitudes towards lifelong learning, the motivations and skills needed for this “journey”. Conclusion: From the findings, researchers proposed recommendations to promoting and fostering lifelong learning of community with the case of Vietnam

HIỆU ỨNG STARK QUANG HỌC CỦA EXCITON TRONG CHẤM LƯỢNG TỬ PHỎNG CẦU DẠNG DẸT InGaAs/InAlAs

In this paper, we studied the existence of the exciton optical Stark effect in oblate spheroidal quantum dots by using the renormalized wavefunction theory. A strong pump wave was applied to couple the electron quantization states in the conduction band in a three-level system model. We observed two separate peaks of the interband absorption transitions representing the separation of the electron energy levels due to the optical Stark effect. In addition, the influence of the pump field energy, size, and geometry of the quantum dots on the effect characteristics was also investigated in detail.Trong bài báo này, chúng tôi nghiên cứu sự tồn tại của hiệu ứng Stark quang học của exciton trong chấm lượng tử phỏng cầu dạng dẹt bằng lý thuyết hàm sóng tái chuẩn hóa. Một sóng bơm mạnh đã được áp dụng để kết cặp các trạng thái lượng tử hóa của điện tử trong vùng dẫn trong mô hình hệ ba mức. Chúng tôi quan sát thấy hai vạch phổ hấp thụ liên vùng riêng biệt, thể hiện sự tách các mức năng lượng của điện tử do hiệu ứng Stark quang học. Đồng thời, các ảnh hưởng của năng lượng trường bơm, kích thước và dạng hình học của chấm lượng tử lên các đặc trưng của hiệu ứng cũng được khảo sát chi tiết

Damage assessment in beam-like structures by correlation of spectrum using machine learning

Damage assessment in the actual operating process of the structure is a modern and exciting problem of construction engineering due to several practical knowledge about the current condition of the inspected structures. However, the problem faced is the difficulty in controlling the excitation in structures. Therefore, the output-based structural damage identification method is becoming attractive because of its potential to be applied to an actual application without being constrained by the collection of the information excitation source. An approach of damage assessment based on supervised Machine Learning is introduced in this study by using the correlation of spectral signal as an input feature for artificial neural network (ANN) and decision tree. The output of machine learning algorithms consists of the appearance of new cuts, the level of cutting and the cutting position. A supported beam model was constructed as an experiment to determine if the method is reasonable for engineering structures. Two machine learning algorithms have been applied to check the relevance of the proposed feature from vibration data. This study contributes a standard in the damage identification problem based on spectral correlation

Students’ Perceptions on Blended Synchronous Learning in the Postcrisis Era

With the severe impacts of the Covid-19 pandemic, the educational systems have to be reformed and evolved. Blended synchronous learning has become an attractive tendency in education worldwide as the technology has mushroomed recently and attracts a vast number of users and researchers. Therefore, the current study was conducted to investigate students’ overall perceptions of blended synchronous learning as well as its benefits and challenges. 163 participants in the study have experienced ENT courses in a blended synchronous learning environment for 105 hours within 7 weeks. The instrument employed in the quantitative phase was 27 items adapted from studies by Rahman et al. (2015), López-Pérez et al. (2011), and Wu et al. (2010). Additionally, semi-structured interviews were used to have a deeper understanding of the research issues. Results indicate that more than half of participants had good perceptions about the blended synchronous learning environment and perceived various benefits as well as challenges of it. Moreover, these findings are supplemented with illustrative quotes from interview transcripts to compare and contrast with previous findings reported in the literature, and therefore this study contributes to the field by offering the learners\u27 voices