objective: piwil2, a member of ago/piwi gene family containing piwi and paz domains, has been shown to be ectopically expressed in different cancer cells, especially its remarkable expression in cancer stem cells (cscs), and is also known to be essential for germ line stem cell self-renewal in various organisms. the hypothesis that csc may hold the key to the central problem of clinical oncolog...

This research aims to examine how social popularity and deal scarcity of a product influences consumers’ purchase behavior on e-commerce websites and how this influence varies across cultures. Some studies have shown that Eastern cultures (e.g., China) are more likely to herd than Western cultures (e.g., United States). Also, when a deal offer on a product is about to expire, consumers of vario...

We hypothesised that primary bronchial epithelial cells (PBECs) from subjects with chronic obstructive pulmonary disease (COPD) respond differently to Pseudomonas aeruginosa lipopolysaccharide (LPS) after cigarette smoke extract (CSE) exposure than PBECs obtained from smokers without airflow obstruction and nonsmokers. PBECs from 16 COPD subjects, 10 smokers without airflow obstruction and nine...

This essay focuses on a group of contemporary African artis s who execute their work using their own i mages, or inscribe their own bodies into the final configurati n. Executed in the installation genre and influenced by Ideas of performance art, the works of these artl is have been primarily motivated by the quest for self-representation, interrogation of their own €xl`ste tial circumstances,...

different research and theoretical approaches have been adopted in the study of the space of music production. the space of production and consumption of culture in iran as a country in transition is diverse and heterogeneous. such a diversity and heterogeneity in itself causes problems for this space. the problem of this space, which in this research work has been defined as a small social spa...

In his seminal book on the historical periods of Western attitudes toward death, Philippe Aries describes four consecutive periods through which these attitudes evolved and transformed. According to him, the historical attitudes of Western cultures have passed through four major parts described above: "Tamed Death," One's Own Death," "Thy Death," and "Forbidden Death." This paper, after explori...

BACKGROUND During peritoneal dialysis (PD), epithelial-mesenchymal transition (EMT) is likely involved in aberrant healing and progressive peritoneal fibrosis. Recently, EMT of the kidney was actively reversed into the opposite direction, into mesenchymal-epithelial transition (MET), by treatment with bone morphogenic protein-7 (BMP-7). In this study, the potential for ex vivo interconversion o...