Apoptosis is a kind of programmed cell death that is naturally necessary for homeostasis and some processes like organogenesis and implantation of embryo; so it is not pathologic and harmful all the time. The purpose of this commentary was to describe the ways of stimulating and inhibiting the apoptosis process; because rather in the therapeutic protocols we should stimulate or inhibi...

Nonhuman animals, like humans, appear sensitive to the structure of the elements of sequences, perhaps even when the structure relates nonadjacent elements. In the present study, we examined the contribution of chunking, rule learning, and item memory when rats learned serial patterns composed of two interleaved subpatterns. In one group, the Wrst interleaved subpattern was a formally simple se...

abstract aim and background: the purpose of the present study was to investigate the factorial structure, reliability and divergent and convergent validity of the extended life orientation test- persian version (elot-p). methods and materials: first, elot was translated to persian language. then by using the back-translation procedure, the gaps between the translated version and the original ve...

In this work, the mechanism for fracture of brittle substances such as rocks under a uniform normal tension is considered. The oriented straight micro-cracks are mostly created in all the polycrystalline materials resulting from the stress concentrations. The present work focuses on the interactions of the pre-existing micro-cracks, which can grow and propagate within a rock-like specimen. The ...

BACKGROUND AND OBJECTIVES The chronic respiratory questionnaire (CRQ), a widely used measure of health-related quality of life (HRQL) in patients with chronic airflow limitation, includes an individualized dyspnea domain (patients identify five important activities, and report the degree of dyspnea on a 7-point scale). Because the individualized domain is unwieldy in multicenter clinical trials...