in this paper after a general literature review on the concept of efficient frontier (ef), an important inadequacy of the variance based models for deriving efs and the high necessity for applying another risk measure is exemplified. in this regard for this study the risk measure of lower partial moment of the first order is decided to replace variance. because of the particular shape of the pr...

the pragmalinguistic and sociopragmatic aspects of language use vary across different situations, languages, and cultures. the separation of these two facets of language use can help to map out the socio-cultural norms and conventions as well as the linguistic forms and strategies that underlie the pragmatic performance of different language speakers in a variety of target language use situatio...

Role-plays provide students with the opportunity to demonstrate how to use English in real life situations and make them focus more on communication than on grammar. Oral presentations like conversations are a great way for students to practice their English skills. Therefore, this paper makes an attempt to investigate whether teaching conversation through role play affects the students’ speaki...

BACKGROUND Annually, over 1 million births in Nigeria are to teenage mothers. Many of these pregnancies are unwanted and these mothers are also exposed to the risk of human immunodeficiency virus (HIV) infection. Sexual abstinence is a critical preventative health strategy. Several quantitative studies in Nigeria have identified the correlates and determinants of early sex, yet few have explore...

: The literature about the factors associated with cancer treatment refusal, especially by older patients is scarce. Therefore, this study aimed to identify predictive refusal cancer. A systematic review was conducted using three databases, Medline, Web of Science, and Scopus key concepts, “refusal treatment” “cancer” “decision making” “elderly” or “aged”. search took place in July 2020 it incl...

Following Beebe, Takahashi, and Uliss-Weltz’s (1990) classification, this study examines the relationship between power and gender of the addressees and the type and number of refusal strategies employed by Sarawani Baloch male university students (SBMUS). Fifty SBMUS studying in Azad University of Sarawan were randomly chosen as the participants of the study. Data collection was accomplished t...