the human placenta has long been the subject of scientific interest due to the important roles which it performs during pregnancy in sustaining the fetus and maintaining fetomaternal tolerance. more recently, however, researchers have begun to investigate the possibility that the placenta’s utility may extend beyond fetal development to act as a source of cells with clinically relevant properti...

Stomata, the small opening in leaf connecting plant with atmosphere, play pivotal roles in global water and carbon cycles. Stomata regulate the two key important physiological functions viz. photosynthesis and transpiration and thus are crucial for performance of crop species in changing climatic conditions. Although environmental factors influence the density and size of stomata, the genetic c...

Names as markers of identity are a source of a wide variety of information. This paper explores the names of characters to show the sociocultural factors which influence the choice of names and the effects that the names of these characters have on the roles they play. Using a variety of personal names from Ayi Kwei Armah’s Fragments, Buchi Emecheta’s The Joys of Motherhood, a...

Introduction: The impact of COVID-19 has spread around the globe since first announced in March 2020 by WHO and was acknowledged an occupational setting, up to now, becoming major percentage cases. 1. Regardless prompt response made, infection cases among healthcare workers have risen quickly high. It is essential understand features that play roles transmission settings build a better understa...

ferdowsi's shahname (one of the most valuable literary works in iran and in the world) can be studied from different viewpoints. this important literary work can be analyzed from various dimensions including literature, sociology, mythology and elements of the story. one quite new aspect which can lay the ground for research in shahnameh and can be very useful and give great results to us ...

background: hox genes are well-known transcription factors that play essential roles in directing embryonic development. tgifly is a y-linked homeobox gene that was originally identified by virtue of its expression in adult testis. the functions of tgifly in normal and abnormal development are unknown. methods: to investigate the potential roles of tgifly gene in the infertile males, a semi-nes...