Volume 4.
Issue 04.

A sudden pandemic has brought the whole world to a standstill for more than a year due to a new virus called Corona, also known as Covid-19. To control and prevent this epidemic, finding a vaccine to stimulate the immune system against the consequences caused by Coronavirus is an urgent task for many countries around the world. So far, the production and supply of vaccines are causing political and economic races around the world. The research, and production of vaccines to prevent Covid-19 are also being actively implemented in Vietnam. The objective of the article is to clarify the context of the global competition for the research, production and supply of Covid-19 Vaccines by using statistics of active cases, and deaths, as long as the data on vaccine Covid-19 doses. Therefore, the article indicates this is not only a medical race but also an economic-geopolitical competition. In addition, it also reveals the inequality that is taking place in this race between developed and developing countries.

This article describes the teaching methods for the use of competently oriented tasks in biology lessons.

The article examines theoretical views on procedural problems of constructive resolution of issues to be clarified in a criminal case submitted to the court, critically and in detail examines the procedural prerequisites and the possibility of optimal implementation of the institution of preliminary hearing.

The instrument was grounded in the model of classroom teaching, students’ evaluations of teaching effectiveness research, principles of effective teaching and adult learning. Exploratory factor analysis was conducted to uncover factors that represented the data.  The principle axis factoring extraction method and promax rotation procedure resulted in seven factor structures.  Some of the factors were not well defined, thus the instrument was revised.  Test-retest correlations were high (r ≥ 70) and internal consistency analysis indicated that students responded consistently to its eight sub-scales and items.   Results of the correlational analysis suggested that all LISET’s scales contributed significantly to students’ perceptions of learning.  The best predictors of students’ learning were Rapport with Students (β =.354 and Sig. = .000), Speaking Skills (β = 0.331 and Sig.= .000) and Clarity of Presentation and Explanation (β = 0.265 and Sig.= .002).  Results of this study suggested that the LISET survey instrument has acceptable psychometric properties and it captures eight dimensions of teaching components namely, “Self-rated Learning Outcomes”, “Rapport With Students”, “Clarity of Presentation and Explanation”, “Organization of the Lessons”, “Stimulation of Student Interest”, “Effective Speaking”, “Questioning Skills” and “Lecturer Support for Student Assessment”.  Some of the significant conclusions reached in the study were: (1) the results confirmed the multi-dimensionality of student evaluation of teaching, (2) the LISET instrument has reasonable content, construct and criterion validities, and (3) the LISET instrument can be used by teacher educators with reasonable degree of reliability.

The use of methods of applied linguistics in teaching a foreign language is considered. The potential of learning on the basis of corpus language material is analyzed. An analysis of such corpus linguistics methods as information retrieval (IR), data-driven learning, text searches in large-scale corpora (concordances), natural language processing methods (natural language processing) is presented. NLP)). In addition, the role and importance of the corps in leisure reading was studied.

Firmly protecting the sovereignty of the sea and islands is the responsibility of every maritime country; this is also an important factor in firmly protecting the country's sovereignty. In the context of the world and region's complicated and unpredictable arising challenges, the role of international law of the Sea is a key factor for countries to be able to resolve disputes with relevant countries in the East Sea in accordance with international law. The article explains the role of the use of international law of the Sea in settling disputes related to maritime sovereignty between States; Besides, the article analyzes Vietnam's views on settling disputes related to sovereignty over sea and islands; In particular, the article clarifies Vietnam's application of international law in settling disputes and asserting Vietnam's sovereignty over the sea and islands.